95 results on '"Chunyu Deng"'
Search Results
2. Broadband Polarization Splitter-Rotator on Lithium Niobate-on-Insulator Platform
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Chunyu Deng, Wanghua Zhu, Yu Sun, Mengjia Lu, Lei Huang, Dongyu Wang, Guohua Hu, Binfeng Yun, and Yiping Cui
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Electrical and Electronic Engineering ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials - Published
- 2023
3. Electrical tunable topological valley photonic crystals for on-chip optical communications in the telecom band
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Zhipeng Qi, Guohua Hu, Chunyu Deng, Hao Sun, Yaohui Sun, Ying Li, Bo Liu, Yu Bai, Shuaidong Chen, Yiping Cui, and School of Physical and Mathematical Sciences
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Physics [Science] ,Light Modulation ,Electrical and Electronic Engineering ,Atomic and Molecular Physics, and Optics ,Optical Communications ,Electronic, Optical and Magnetic Materials ,Biotechnology - Abstract
On-chip optical communications are in increasingly demand for low-loss, small-footprint and power-efficient waveguiding solutions in the telecom band. However, most integrated optical circuits suffer from high propagation loss and low integration degree. Through manipulating the valley-dependent topological phase of light, we have experimentally demonstrated both robust optical transport and electrical modulation of lightwaves at telecom wavelengths in the valley photonic crystals. With the adoption of valley kink states, the 25 Gbit/s optical signal at 1550 nm is successfully transmitted through a highly twisted interface. Furthermore, an extreme high data rate of 100 Gbit/s is demonstrated with such topological waveguide by wavelength division multiplexing. The electrical tunability of the topological modulators based on thermo-optic effect is also verified, opening a novel route towards active valley kink photonic devices. Our study shows a great possibility of making use of the topological protection in building up high-speed datalinks on a chip. Published version This work was supported by the Innovation and Entrepreneurship Program of Jiangsu Province (JSSCBS20210467), the Natural Science Foundation of the Jiangsu Higher Institution of China (21KJB140012), the Natural Science Foundation of Jiangsu Province (SBK2021041180), the National Natural Science Foundation of China (62105158, 62075038).
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- 2022
4. Efficient tomato harvesting robot based on image processing and deep learning
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Zhonghua Miao, Xiaoyou Yu, Nan Li, Zhe Zhang, Chuangxin He, Zhao Li, Chunyu Deng, and Teng Sun
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General Agricultural and Biological Sciences - Published
- 2022
5. Broadband TM-Mode-Pass Polarization Rotator and Power Divider With Tunable Beam-Splitting Ratio
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Chunyu Deng, Mengjia Lu, Yu Sun, Lei Huang, Dongyu Wang, Jingyu Zhang, Guohua Hu, Binfeng Yun, and Yiping Cui
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Electrical and Electronic Engineering ,Atomic and Molecular Physics, and Optics - Published
- 2022
6. Design and application of stateful middleware management platform based on cloud native
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Peng Liu, Chunyu Deng, and Dazhong Wang
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- 2023
7. Electrical manipulation of lightwaves in the uniaxially strained photonic honeycomb lattices under the pseudomagnetic field
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Zhipeng Qi, Hao Sun, Guohua Hu, Chunyu Deng, Wanghua Zhu, Bo Liu, Ying Li, Shaopeng Liu, Xuechao Yu, and Yiping Cui
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Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials - Published
- 2023
8. Dual ionically crosslinked chitosan–based injectable hydrogel as drug delivery system
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Jing Zhao, Lu Cui, Xiaoran Wang, and Chunyu Deng
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Colloid and Surface Chemistry ,Polymers and Plastics ,Materials Chemistry ,Physical and Theoretical Chemistry - Published
- 2022
9. Valley-Dependent Topological Photonic Crystals With Heterogeneous Bearded Interfaces for SOI-Based Integrated Optical Devices
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Zhipeng Qi, Guohua Hu, Chunyu Deng, Hao Sun, Bo Liu, Xiumin Song, Yu Sun, and Yiping Cui
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Atomic and Molecular Physics, and Optics - Published
- 2022
10. Electrical Switching of the Off-Resonance Room-Temperature Valley Polarization in Monolayer MoS2 by a Double-Resonance Chiral Microstructure
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Lei Huang, Xiaofan Zhu, Guohua Hu, Chunyu Deng, Yu Sun, Dongyu Wang, Mengjia Lu, Binfeng Yun, Ruohu Zhang, Yan Zhang, and Yiping Cui
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General Materials Science - Published
- 2022
11. Data from TIP: A Web Server for Resolving Tumor Immunophenotype Profiling
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Xia Li, Yun Xiao, Tingting Zhao, Min Yan, Zhilin Long, Feng Li, Peng Cheng, Huating Yuan, Gaoming Liao, Wei Liu, Xinxin Zhang, Bo Pang, Chunyu Deng, and Liwen Xu
- Abstract
Systematically tracking the tumor immunophenotype is required to understand the mechanisms of cancer immunity and improve clinical benefit of cancer immunotherapy. However, progress in current research is hindered by the lack of comprehensive immune activity resources and easy-to-use tools for biologists, clinicians, and researchers to conveniently evaluate immune activity during the “cancer-immunity cycle.” We developed a user-friendly one-stop shop web tool called TIP to comprehensively resolve tumor immunophenotype. TIP has the capability to rapidly analyze and intuitively visualize the activity of anticancer immunity and the extent of tumor-infiltrating immune cells across the seven-step cancer-immunity cycle. Also, we precalculated the pan-cancer immunophenotype for 11,373 samples from 33 The Cancer Genome Atlas human cancers that allow users to obtain and compare immunophenotype of pan-cancer samples. We expect TIP to be useful in a large number of emerging cancer immunity studies and development of effective immunotherapy biomarkers. TIP is freely available for use at http://biocc.hrbmu.edu.cn/TIP/.Significance:TIP is a one-stop shop platform that can help biologists, clinicians, and researchers conveniently evaluate anticancer immune activity with their own gene expression data.See related commentary by Hirano, p. 6536
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- 2023
12. Table S1 from TIP: A Web Server for Resolving Tumor Immunophenotype Profiling
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Xia Li, Yun Xiao, Tingting Zhao, Min Yan, Zhilin Long, Feng Li, Peng Cheng, Huating Yuan, Gaoming Liao, Wei Liu, Xinxin Zhang, Bo Pang, Chunyu Deng, and Liwen Xu
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Leukocyte signature matrix (LM14), including gene expression matrix and source data.
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- 2023
13. Supplementary Information from TIP: A Web Server for Resolving Tumor Immunophenotype Profiling
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Xia Li, Yun Xiao, Tingting Zhao, Min Yan, Zhilin Long, Feng Li, Peng Cheng, Huating Yuan, Gaoming Liao, Wei Liu, Xinxin Zhang, Bo Pang, Chunyu Deng, and Liwen Xu
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Supplementary figures and tables
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- 2023
14. Photonic-Plasmonic Hybrid Nanocavity for Quasi-Bound States in the Continuum at Telecom Wavelengths
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Zhipeng Qi, Chunyu Deng, Ying Li, and Bo Liu
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Electrical and Electronic Engineering ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials - Published
- 2022
15. Compact, easy-accessible and tunable double injection micro-ring element for real-time spectral reshaping
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Yaohui Sun, Chunyu Deng, Zhonghu Xie, Lei Huang, Guohua Hu, Binfeng Yun, and Yiping Cui
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Electrical and Electronic Engineering ,Physical and Theoretical Chemistry ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials - Published
- 2023
16. Large Group Delay in Silicon-on-Insulator Chirped Spiral Bragg Grating Waveguide
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Yiping Cui, Lei Huang, Ruohu Zhang, Dongyu Wang, Ming Li, Guohua Hu, Anle Wang, Yu Sun, Mengjia Lu, Jianji Dong, Binfeng Yun, and Chunyu Deng
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Materials science ,Spiral Bragg grating waveguide ,business.industry ,Silicon on insulator ,QC350-467 ,Optics. Light ,Grating ,Waveguide (optics) ,Atomic and Molecular Physics, and Optics ,TA1501-1820 ,Transverse mode ,group delay ,linear dispersion ,Fiber Bragg grating ,integrated optics ,Dispersion (optics) ,Chirp ,Optoelectronics ,Applied optics. Photonics ,Electrical and Electronic Engineering ,business ,Group delay and phase delay - Abstract
Limited by large transmission loss, the development of transverse electric (TE) mode silicon-on-insulator (SOI) based on-chip long length chirped grating waveguide faces many difficulties now. To overcome this problem, multi-mode waveguide with a measured transmission loss of 0.7 dB/cm is applied in this paper, and a chirped spiral Bragg grating waveguide (SBGW) is proposed and experimentally demonstrated. The length of the chirped SBGW reaches 2.7 cm, which is the longest SOI based grating reported so far. The total group delay is measured to be 628 ps, with a structure size of only 0.3 mm2 due to the application of spiral configuration. The slope of the linear dispersion is -27.7 ps/nm. This integrated chirped SBGW shows great compatibility with frequently used TE mode SOI devices and has great potential for applications in microwave photonics requiring dispersion control.
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- 2021
17. Compact and broadband silicon mode-order converter using bricked subwavelength gratings
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Mengjia Lu, Chunyu Deng, Yu Sun, Dongyu Wang, Lei Huang, Pengcheng Liu, Dongdong Lin, Wei Cheng, Guohua Hu, Tong Lin, Binfeng Yun, and Yiping Cui
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Atomic and Molecular Physics, and Optics - Abstract
A compact and broadband silicon mode-order converter (MOC) scheme by employing reciprocal mode evolution between asymmetric input/output taper and bricked subwavelength gratings (BSWG) is proposed. In the proposed MOC, a quasi-TE0 mode is generated in the BSWG region, which can be regarded as an effective bridge between the two TE modes to be converted. Flexible mode conversion can be realized by only choosing appropriate structure parameters for specific mode transitions between input/output modes and the quasi-TE0 mode. By combing 3D finite difference time domain (FDTD) and particle swarm optimization (PSO) method, TE0-TE1 and TE0-TE2 MOCs are optimal designed, which can efficiently convert TE0 mode to TE1 and TE2 modes with lengths of 9.39 µm and 11.27 µm, respectively. Results show that the insertion losses of 0-TE1 and TE0-TE2 MOCs, the corresponding working bandwidth are 128 nm (1511∼1639 nm) and 126 nm (1527∼1653 nm), respectively. Additionally, the MOCs can be fabricated with only single etch step with minimum feature size of 145 nm.
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- 2022
18. Research on Power Supply Traceability Mode Based on Blockchain
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Peng Liu, Chunyu Deng, and Dazhong Wang
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- 2022
19. Electrical Switching of the Off-Resonance Room-Temperature Valley Polarization in Monolayer MoS
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Lei, Huang, Xiaofan, Zhu, Guohua, Hu, Chunyu, Deng, Yu, Sun, Dongyu, Wang, Mengjia, Lu, Binfeng, Yun, Ruohu, Zhang, Yan, Zhang, and Yiping, Cui
- Abstract
Enhancing and expanding the manipulated range of room-temperature valley polarization at off-resonance wavelength is extremely crucial to developing various functional valleytronic devices. Although these have been realized through the double-resonance strategy or twist-angle engineering, the demand for electrical control over the concepts remains elusive. Here, we fabricate a gate-tunable double-resonance chiral microstructure using a molybdenum disulfides (MoS
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- 2022
20. COMMD5 is involved in the mechanisms of hypotension after parathyroidectomy in patients receiving hemodialysis
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Bohou Li, Xueqin Chen, Juan Hu, Guibao Ke, Nan Jiang, Fengxia Zhang, Zhiwen Lian, Sichun Wen, Qiong Wu, Yubin Xia, Hong Zhang, Sujuan Kuang, Lixia Xu, Chunyu Deng, and Shuangxin Liu
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Pharmacology - Published
- 2023
21. Broadband dual-mode 3 dB power splitter using bricked subwavelength gratings
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Mengjia Lu, Chunyu Deng, Yu Sun, Dongyu Wang, Pengcheng Liu, Dongdong Lin, Wei Cheng, Shangqing Shi, Tong Lin, Guohua Hu, Binfeng Yun, and Yiping Cui
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Statistical and Nonlinear Physics ,Atomic and Molecular Physics, and Optics - Abstract
The multimode power splitter plays an essential role in on-chip mode-division multiplexing systems. In this work, a broadband dual-mode optical power splitter based on the self-imaging effect in the multimode interference (MMI) engineered by bricked subwavelength gratings (BSWGs) is proposed. The dual-mode power splitter is optimized by combining the 3D finite difference time domain (FDTD) and the particle swarm optimization (PSO) method. For the input T E 0 mode, the insertion loss (IL) and the imbalance (IB) are lower than 0.55 dB and 0.65 dB, while the IL and IB for the input T E 1 mode are, respectively, lower than 0.7 dB and 0.37 dB over 150 nm bandwidth in the wavelength range of 1.5–1.65 µm. In addition, the cross talk (CT) is lower than − 25 d B for the two modes over this wavelength range. Furthermore, the minimum feature size of the gratings is as large as 135 nm, and only a single etch step is required, which is beneficial for the fabrication.
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- 2023
22. Design and simulation of high modulation efficiency, low group velocity dispersion lithium niobate slow-wave electro-optic modulator based on a fishbone-like grating
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Chunyu Deng, Lin Zhu, Mengjia Lu, Yu Sun, Lei Huang, Dongyu Wang, Guohua Hu, Binfeng Yun, and Yiping Cui
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Electrical and Electronic Engineering ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials - Published
- 2023
23. Knowledge Guidance Based Work Ticket Intelligent Generation of Electric Power Equipment Inspection
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Jiannan Xu, Huifang Xu, Jingcheng Chen, Chunyu Deng, Yongping Xiong, and Yan Qi
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- 2022
24. Single cell sequencing analysis uncovers genetics-influenced CD16+monocytes and memory CD8+T cells involved in severe COVID-19
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Yunlong Ma, Fei Qiu, Chunyu Deng, Jingjing Li, Yukuan Huang, Zeyi Wu, Yijun Zhou, Yaru Zhang, Yichun Xiong, Yinghao Yao, Yigang Zhong, Jia Qu, and Jianzhong Su
- Abstract
BackgroundUnderstanding the host genetic architecture and viral immunity contributes to the development of effective vaccines and therapeutics for controlling the COVID-19 pandemic. Alterations of immune responses in peripheral blood mononuclear cells play a crucial role in the detrimental progression of COVID-19. However, the effects of host genetic factors on immune responses for severe COVID-19 remain largely unknown.MethodsWe constructed a powerful computational framework to characterize the host genetics-influenced immune cell subpopulations for severe COVID-19 by integrating GWAS summary statistics (N = 969,689 samples) with four independent scRNA-seq datasets (N = 606,534 cells).ResultsWe found that 34 risk genes were significantly associated with severe COVID-19, and the number of highly-expressed genetics-risk genes increased with the severity of COVID-19. Three cell-subtypes that are CD16+monocytes, megakaryocytes, and memory CD8+T cells were significantly enriched by COVID-19-related genetic association signals. Notably, three causal risk genes of CCR1, CXCR6, and ABO were specifically expressed in these three cell types, respectively. CCR1+CD16+monocytes and ABO+ megakaryocytes with significant up-regulated genes including S100A12, S100A8, S100A9, and IFITM1 confer higher risk to the cytokine storms among severe patients. CXCR6+ memory CD8+ T cells exhibit a notable polyfunctionality of multiple immunologic features, including elevation of proliferation, migration, and chemotaxis. Moreover, we observed a prominent increase in cell-cell interactions of both CCR1+ CD16+monocytes and CXCR6+ memory CD8+T cells in severe patients compared to normal controls among both PBMCs and lung tissues, and elevated interactions with epithelial cells could contribute to enhance the resident to lung airway for against COVID-19 infection.ConclusionsWe uncover a major genetics-modulated immunological shift between mild and severe infection, including an increase in up-regulated genetic-risk genes, excessive secreted inflammatory cytokines, and functional immune cell subsets contributing high risk to severity, which provides novel insights in parsing the host genetics-influenced immune cells for severe COVID-19.
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- 2022
25. Construction and Functional Properties of Multifunctional Chitosan Hydrogel
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Fei Liang, Jing Zhao, and Chunyu Deng
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chemistry.chemical_classification ,Polymers and Plastics ,Biocompatibility ,technology, industry, and agriculture ,macromolecular substances ,02 engineering and technology ,Polymer ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Biodegradable polymer ,Controlled release ,0104 chemical sciences ,Chitosan ,chemistry.chemical_compound ,Adsorption ,chemistry ,Chemical engineering ,Tissue engineering ,Materials Chemistry ,Copolymer ,0210 nano-technology - Abstract
Hydrogel is a kind of new functional polymer material with application value and economic benefit. It has wide application in biomedical field because of its good biocompatibility and hydrophilicity.In this work, chitosan hydrogel was prepared by free radical graft copolymerization using natural biodegradable polymer chitosan as the carrier, temperature sensitive N-isopropylacrylamide (NIPAm) and pH sensitive 2‑acrylamido-2-methylpropane (AMPS) as monomers. The adsorption and drug release properties of chitosan hydrogel are discussed emphatically.The adsorption performance of chitosan hydrogel on copper ions showed that the temperature and the concentration of copper ions had influence on the adsorption. When the concentration of copper ions was 800 mg/L at 25°C, the equilibrium adsorption capacity was 225.8 mg/g, quasi-second order kinetic equation was suitable for describing the adsorption process. With the methylene blue as the drug model, the controlled release results showed that the temperature and the initial drug dosage had great effect on controlled release performance, and the cumulative release rate of 48 h was about 70%, which could achieve sustained release and controlled release to a certain extent.The experimental results also showed that the chitosan hydrogel can be completely degraded for about 20 days with excellent degradation performance. In conclusion, chitosan hydrogel has broad application prospects in drug controlled release, tissue engineering, environmental engineering and so on.
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- 2020
26. Machine-Learning-Guided Morphology Engineering of Nanoscale Metal-Organic Frameworks
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Yi Liu, Yang Zhou, Cheng Wang, Peican Chen, Chunyu Deng, Zhongming Zeng, Xuefu Hu, Da Zhou, Zeyu Tang, Liangping Xiao, Hong-Gang Liao, Rongkun Lin, Yilong Bi, Ruiyun Huang, Xudong Qian, Jingzheng Zhang, and Wenbin Lin
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Materials science ,Cuboctahedron ,Nanostructure ,business.industry ,Machine learning ,computer.software_genre ,Nanomaterials ,Octahedron ,Nanocrystal ,General Materials Science ,Metal-organic framework ,Artificial intelligence ,business ,Science, technology and society ,Nanoscopic scale ,computer - Abstract
Summary Controlling morphology of nanocrystals is one of the central tasks of nanoscience. In this work, we studied nanoscale metal-organic frameworks (nMOFs) from Hf-oxo clusters and linear dicarboxylate ligands with the aid of machine-learning methods for data analysis. Ligand solubility and modulator concentration were found to quantitatively predict the growth of nMOFs with a specific morphology, such as ultrathin two-dimensional film, hexagonal nanoplate, octahedron, cuboctahedron, concave octahedron, or hollow octahedron morphology. With these insights, we use epitaxy growth sequences to design nMOFs of desirable nanostructures with enhanced substrate transport and, hence, increased activities for catalytic olefin hydrogenation. This work highlights new opportunities in using machine learning to guide morphology engineering of nMOFs and other nanomaterials.
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- 2020
27. Spatiotemporal Characteristics of Rectal Carcinoma Cell Epithelial Mesenchymal Transition and Interaction with Immune Cells
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Muhong Wang, Chunyu Deng, Cheng Yang, Mingze Yan, Haibo Lu, Yan Zhang, Honghao Liu, Jiahao Wang, Jiaming Wang, Jiaao Ma, Yuhong Xuan, Haiyue Cheng, Cuicui Chai, Mingzhe Li, and Zhiwei Yu
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- 2022
28. Frequency-selectable microwave generation based on on-chip switchable spectral shaping and wavelength-to-time mapping
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Yu Sun, Dongyu Wang, Chunyu Deng, Mengjia Lu, Wanghua Zhu, Binfeng Yun, Guohua Hu, and Yiping Cui
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Atomic and Molecular Physics, and Optics - Abstract
We propose and experimentally demonstrate a scheme for the photonic generation of pulsed microwave signals with selectable frequency based on spectral shaping and wavelength-to-time mapping (WTTM) technique. The frequency selectivity is realized by channel switching on an integrated silicon-on-insulator (SOI) spectral shaping chip. The incident signal is spectrally shaped by the asymmetric Mach-Zehnder interferometer (MZI) in the selected channel, and an optical spectrum with uniform free spectral range (FSR) can be generated in a broad bandwidth up to dozens of nanometers, implying large microwave signal duration after WTTM if a pulse light source with matched bandwidth is available. Microwave pulses of frequency from 3.6 GHz to 28.4 GHz with a fixed interval are experimentally generated respectively. The realization of eight microwave frequencies selectable with only one shared dispersive element (DE) required indicates high expansibility in the frequency cover range of our scheme by tuning the dispersion value in WTTM.
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- 2023
29. Single cell sequencing analysis identifies genetics-modulated ORMDL3+ cholangiocytes having higher metabolic effects on primary biliary cholangitis
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Jingjing Li, Fei Qiu, Yunlong Ma, Bingyu Xiang, Xiuli Lin, Jianzhong Su, Huifang Zhang, Mingqin Lu, Chunyu Deng, Yijun Zhou, Yukuan Huang, and Shanshan Li
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Biomedical Engineering ,Pharmaceutical Science ,Medicine (miscellaneous) ,Bioengineering ,Biology ,PBC ,Applied Microbiology and Biotechnology ,Liver cells ,Medical technology ,Humans ,GWAS ,RNA-Seq ,R855-855.5 ,Biliary Tract ,Cells, Cultured ,Genetics ,Primary (chemistry) ,Liver Cirrhosis, Biliary ,Research ,ORMDL3 ,Membrane Proteins ,Single cell sequencing ,Metabolic effects ,Molecular Medicine ,Single-Cell Analysis ,Risk genes ,TP248.13-248.65 ,Biotechnology ,Genome-Wide Association Study ,Single cell sequencing analysis - Abstract
Background Primary biliary cholangitis (PBC) is a classical autoimmune disease, which is highly influenced by genetic determinants. Many genome-wide association studies (GWAS) have reported that numerous genetic loci were significantly associated with PBC susceptibility. However, the effects of genetic determinants on liver cells and its immune microenvironment for PBC remain unclear. Results We constructed a powerful computational framework to integrate GWAS summary statistics with scRNA-seq data to uncover genetics-modulated liver cell subpopulations for PBC. Based on our multi-omics integrative analysis, 29 risk genes including ORMDL3, GSNK2B, and DDAH2 were significantly associated with PBC susceptibility. By combining GWAS summary statistics with scRNA-seq data, we found that cholangiocytes exhibited a notable enrichment by PBC-related genetic association signals (Permuted P ORMDL3 showed the highest expression proportion in cholangiocytes than other liver cells (22.38%). The ORMDL3+ cholangiocytes have prominently higher metabolism activity score than ORMDL3− cholangiocytes (P = 1.38 × 10–15). Compared with ORMDL3− cholangiocytes, there were 77 significantly differentially expressed genes among ORMDL3+ cholangiocytes (FDR ORMDL3+ cholangiocytes exhibited relatively high communications with macrophage and monocyte. Compared with ORMDL3− cholangiocytes, the VEGF signaling pathway is specific for ORMDL3+ cholangiocytes to interact with other cell populations. Conclusions To the best of our knowledge, this is the first study to integrate genetic information with single cell sequencing data for parsing genetics-influenced liver cells for PBC risk. We identified that ORMDL3+ cholangiocytes with higher metabolism activity play important immune-modulatory roles in the etiology of PBC. Graphical Abstract
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- 2021
30. Numerical study on the biosensing in mid-infrared based on multiple Fano-resonance plasmonic waveguide
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Shiqing Dong, Hongchao Liu, Yun Zheng, Jun Zhang, Shiqiang Xia, Chao Dong, Kesheng Shen, Chunyu Deng, Wenyuan Luo, Mengxue Su, Jie Sun, Cheng Zhen, and Hai Lu
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Electrical and Electronic Engineering ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials - Published
- 2022
31. The genetic source tracking of human urinary exosomes
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Jiaoyuan Li, Meng Li, Jianzhong Su, Liu Huang, Qinsi Yang, Xianjun Dong, Chunyu Deng, Yong Wang, Liming Cheng, Qingfu Zhu, Fei Liu, and Luke P. Lee
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Multidisciplinary ,Monocyte ,Cancer ,Dendritic cell ,Biology ,medicine.disease ,Microvesicles ,Cell biology ,Immune system ,medicine.anatomical_structure ,medicine ,Liquid biopsy ,Biomarker discovery ,Gene - Abstract
The genetic origins of nanoscale extracellular vesicles in our body fluids remains unclear. Here, we perform a tracking analysis of urinary exosomes via RNA sequencing, revealing that urine exosomes mostly express tissue-specific genes for the bladder and have close cell-genetic relationships to the endothelial cell, basal cell, monocyte, and dendritic cell. Tracking the differentially expressed genes of cancers and corresponding enrichment analysis show urine exosomes are intensively involved in immune activities, indicating that they may be harnessed as reliable biomarkers of noninvasive liquid biopsy in cancer genomic diagnostics and precision medicine.
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- 2021
32. Combination of single cell sequencing data and GWAS summary statistics reveals genetically-influenced liver cell types for primary biliary cholangitis
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Yunlong Ma, Jingjing Li, Mingqin Lu, Chunyu Deng, Shanshan Li, Bingyu Xiang, Xiuli Lin, and Huifang Zhang
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Transcriptome ,Genetics ,medicine.anatomical_structure ,Single cell sequencing ,Liver cell ,T cell ,Expression quantitative trait loci ,medicine ,Single-nucleotide polymorphism ,Genome-wide association study ,Biology ,Genetic association - Abstract
ImportancePrimary biliary cholangitis (PBC) is a classical autoimmune disease, which is highly influenced by genetic determinants. Many genome-wide association studies (GWAS) have reported that numerous genetic loci were significantly associated with PBC susceptibility. However, the effects of genetic determinants on liver cells and its immune microenvironment for PBC remain unclear.ObjectiveTo identify genetics-modulated functional liver cell subsets involved in the pathogenesis of PBC.Design, Setting, and ParticipantsIn this present study, 13,239 European participants were collected from IEU open GWAS project on PBC. There were 1,124,241 qualified SNPs used for GWAS analysis. Expression quantitative trait loci (eQTL) data across 49 tissues were downloaded from the GTEx database. Two single cell RNA sequencing (scRNA-seq) profiles and two bulk-based RNA transcriptomes were downloaded from the GEO database. Data collection and analyses were performed from August 2020 to June 2021.Main outcomes and measuresWe constructed a powerful computational framework to integrate GWAS summary statistics with scRNA-seq data to uncover genetics-modulated liver cell subpopulations.ResultsBased on our multi-omics integrative analysis, we found that 29 risk genes including ORMDL3, GSNK2B, and DDAH2 were significantly associated with PBC susceptibility. Gene-property analysis revealed that four immune cell types, including Cst3+ dendritic cell, Chil3+ macrophage, Trbc2+ T cell, and Gzma+ T cell, were significantly enriched by PBC-risk genes. By combining GWAS summary statistics with scRNA-seq data, we found that cholangiocytes exhibited a notable enrichment by PBC-related genetic association signals (Permuted P < 0.05). The risk gene of ORMDL3 showed the highest expression proportion in cholangiocytes than other liver cells (22.38%). Compared with ORMDL3+ cholangiocytes, there were 71 significantly highly-expressed genes among ORMDL3- cholangiocytes (FDR < 0.05), such as inflammatory cytokine genes CXCL8, CCL3, IFI16, and IRF1. These highly-expressed genes were significantly enriched in numerous biological pathways and functional terms associated with autoimmune diseases (FDR < 0.05).Conclusions and relevanceTo the best of our knowledge, this is the first study to integrate genetic information with single cell sequencing data for parsing genetics-influenced liver cells for PBC risk. We identified that ORMDL3- cholangiocytes play important immune-modulatory roles in the etiology of PBC.Key pointsQuestionAre genetics factors influenced liver cell subpopulations and its immune microenvironment for PBC?FindingsIn this comprehensive genomics study based on multi-omics data, genetic determinants were significantly enriched in cholangiocytes and immune cells including subsets of macrophage, dendritic cells, and T cells. ORMDL3- cholangiocytes have crucial immune-modulatory roles in developing PBC.MeaningFindings suggest that integration of single cell sequencing data with GWAS summary statistics contribute to pinpoint PBC-relevant cell types and risk genes.
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- 2021
33. Integrating single-cell sequencing data with GWAS summary statistics reveals CD16+monocytes and memory CD8+T cells involved in severe COVID-19
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Yunlong Ma, Fei Qiu, Chunyu Deng, Jingjing Li, Yukuan Huang, Zeyi Wu, Yijun Zhou, Yaru Zhang, Yichun Xiong, Yinghao Yao, Yigang Zhong, Jia Qu, and Jianzhong Su
- Subjects
Sequence Analysis, RNA ,Quantitative Trait Loci ,Receptors, IgG ,Receptors, CCR1 ,COVID-19 ,Computational Biology ,CD8-Positive T-Lymphocytes ,GPI-Linked Proteins ,Severity of Illness Index ,Monocytes ,Genetics ,Molecular Medicine ,Humans ,Genetic Predisposition to Disease ,Single-Cell Analysis ,Molecular Biology ,Genetics (clinical) ,Genome-Wide Association Study ,Megakaryocyte Progenitor Cells ,Receptors, CXCR6 - Abstract
Background Understanding the host genetic architecture and viral immunity contributes to the development of effective vaccines and therapeutics for controlling the COVID-19 pandemic. Alterations of immune responses in peripheral blood mononuclear cells play a crucial role in the detrimental progression of COVID-19. However, the effects of host genetic factors on immune responses for severe COVID-19 remain largely unknown. Methods We constructed a computational framework to characterize the host genetics that influence immune cell subpopulations for severe COVID-19 by integrating GWAS summary statistics (N = 969,689 samples) with four independent scRNA-seq datasets containing healthy controls and patients with mild, moderate, and severe symptom (N = 606,534 cells). We collected 10 predefined gene sets including inflammatory and cytokine genes to calculate cell state score for evaluating the immunological features of individual immune cells. Results We found that 34 risk genes were significantly associated with severe COVID-19, and the number of highly expressed genes increased with the severity of COVID-19. Three cell subtypes that are CD16+monocytes, megakaryocytes, and memory CD8+T cells were significantly enriched by COVID-19-related genetic association signals. Notably, three causal risk genes of CCR1, CXCR6, and ABO were highly expressed in these three cell types, respectively. CCR1+CD16+monocytes and ABO+ megakaryocytes with significantly up-regulated genes, including S100A12, S100A8, S100A9, and IFITM1, confer higher risk to the dysregulated immune response among severe patients. CXCR6+ memory CD8+ T cells exhibit a notable polyfunctionality including elevation of proliferation, migration, and chemotaxis. Moreover, we observed an increase in cell-cell interactions of both CCR1+ CD16+monocytes and CXCR6+ memory CD8+T cells in severe patients compared to normal controls among both PBMCs and lung tissues. The enhanced interactions of CXCR6+ memory CD8+T cells with epithelial cells facilitate the recruitment of this specific population of T cells to airways, promoting CD8+T cell-mediated immunity against COVID-19 infection. Conclusions We uncover a major genetics-modulated immunological shift between mild and severe infection, including an elevated expression of genetics-risk genes, increase in inflammatory cytokines, and of functional immune cell subsets aggravating disease severity, which provides novel insights into parsing the host genetic determinants that influence peripheral immune cells in severe COVID-19.
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- 2021
34. High extinction ratio and broadband polarization beam splitter based on bricked subwavelength gratings on SOI platform
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Mengjia Lu, Chunyu Deng, Yu Sun, Dongyu Wang, Lei Huang, Pengcheng Liu, Dongdong Lin, Wei Cheng, Tong Lin, Guohua Hu, Binfeng Yun, and Yiping Cui
- Subjects
Electrical and Electronic Engineering ,Physical and Theoretical Chemistry ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials - Published
- 2022
35. Design of Vision Control System of Tomato Picking Robot
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Chunyu Deng, Nan Li, Chuangxin He, and Zhonghua Miao
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Robot kinematics ,business.industry ,Computer science ,Process (computing) ,Vision control ,Kinematics ,Servomechanism ,Visualization ,law.invention ,law ,Robot ,Computer vision ,Artificial intelligence ,Motion planning ,business - Abstract
Tomato picking is a relatively complex production link in the overall process of tomato production. It is the labor-intensive work and it is urgent to use automated picking of tomato fruits. Therefore, this article mainly uses the depth camera and the six-degree-of-freedom manipulator to study the construction of the visual servo system, the modeling and kinematics simulation of the manipulator in the automatic tomato picking robot. We have established a robot visual servo system that can be directly grasped based on the robot operating system(ROS). The system acquires fruit targets through visual sensors, uses the depth and color information of the targets, and uses coordinated control strategies for hands and eyes at different distances. The tomato picking space is divided into multiple picking sub-regions, and the picking path planning is combined with the obstacle avoidance algorithm to improve the overall efficiency of tomato picking.
- Published
- 2021
36. Synthesis of single-crystalline Pb(Zr0.52Ti0.48)O3 nanocrystals by hydrothermal method
- Author
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Yang Ju, Lianmeng Zhang, Dongyun Guo, Xuedong Zhou, Zhixiong Huang, Xinyi Li, Chunyu Deng, Shaoqing Li, and Chaoran Qin
- Subjects
reaction time ,010302 applied physics ,Thesaurus (information retrieval) ,Materials science ,Mechanical Engineering ,naoh concentration ,Nanotechnology ,02 engineering and technology ,reaction temperature ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,pbzr0.52ti0.48o3 nanocrystal ,01 natural sciences ,Hydrothermal circulation ,Nanomaterials ,Nanocrystal ,hydrothermal method ,Mechanics of Materials ,0103 physical sciences ,TA401-492 ,General Materials Science ,0210 nano-technology ,Science, technology and society ,Materials of engineering and construction. Mechanics of materials - Abstract
PbZr0.52Ti0.48O3 nanocrystals were synthesized by a hydrothermal method. The effect of NaOH concentration, reaction temperature and time on nucleation and growth of PbZr0.52Ti0.48O3 nanocrystals was investigated. As the 0.05 mol/L PbZr0.52Ti0.48O3 precursors were heated at 200 °C for 21 h with NaOH concentration of 0.5 mol/L, the tetragonal PbZr0.52Ti0.48O3 nanocrystals were formed, and the grain size was more than 20 nm. With increasing the NaOH concentration from 0.5 to 1.5 mol/L, the grain size of PbZr0.52Ti0.48O3 nanocrystals decreased. When the precursors were heated at different temperatures (140 °C to 200 °C) for 21 h with 1.0 mol/L NaOH, single-phase PbZr0.52Ti0.48O3 nanocrystals were obtained at 160 °C to 200 °C. With increasing the reaction temperature from 160 °C to 200 °C, the grains size of PbZr0.52Ti0.48O3 nanocrystals increased from 5 nm to 9 nm. When the precursors were heated at 160 °C in different reaction times from 6 h to 21 h, the evolution from amorphous to crystalline PbZr0.52Ti0.48O3 nanocrystals in correlation with the reaction time was observed. Single crystalline PbZr0.52Ti0.48O3 nanocrystals with narrow size distribution (from 5 nm to 9 nm) were synthesized by controlling the NaOH concentration, reaction temperature and time. The obtained results can find potential application in preparing PbZr0.52Ti0.48O3 thin films on flexible substrates.
- Published
- 2019
37. High sensitivity and FOM refractive index sensing based on Fano resonance in all-grating racetrack resonators
- Author
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Guohua Hu, Wen Yongjiao, Yiping Cui, Ruohu Zhang, Chunyu Deng, Binfeng Yun, Yu Sun, and Lei Huang
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Coupling ,Materials science ,Extinction ratio ,business.industry ,Fano resonance ,02 engineering and technology ,Grating ,021001 nanoscience & nanotechnology ,01 natural sciences ,Waveguide (optics) ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,010309 optics ,Resonator ,Optics ,0103 physical sciences ,Figure of merit ,Electrical and Electronic Engineering ,Physical and Theoretical Chemistry ,0210 nano-technology ,business ,Refractive index - Abstract
A refractive index sensor based on all-grating racetrack resonators is proposed and demonstrated in this paper. The structure consists of two subwavelength grating (SWG) waveguide-based racetrack resonators, a straight SWG bus waveguide and a SWG waveguide-based open racetrack. A sharp Fano resonance can be obtained by the mutual coupling of the two SWG racetrack resonators. Theoretical analysis and numerical simulations show that the introduction of grating can enhance the interaction between the sensor and the measured liquid analyte, thus increasing the sensitivity of the device. Calculated sensitivity of 500 nm/RIU around wavelength 1550 nm is achieved, and the figure of merit is 2000 RIU−1. The extinction ratio of this device can reach 21.53 dB.
- Published
- 2019
38. Identifying Cancer Driver lncRNAs Bridged by Functional Effectors through Integrating Multi-omics Data in Human Cancers
- Author
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Liwen Xu, Jing Bai, Gaoming Liao, Yun Xiao, Tao Luo, Aimin Xie, Yong Zhang, Xinxin Zhang, Xia Li, Min Yan, Zhilin Long, and Chunyu Deng
- Subjects
0301 basic medicine ,Somatic cell ,Regulatory T cell ,Computational biology ,Biology ,medicine.disease_cause ,Article ,long non-coding RNAs ,03 medical and health sciences ,0302 clinical medicine ,Drug Discovery ,medicine ,immunosuppression ,copy number alterations ,Effector ,cancer drivers ,lcsh:RM1-950 ,medicine.disease ,lcsh:Therapeutics. Pharmacology ,030104 developmental biology ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Molecular Medicine ,Adenocarcinoma ,DECIPHER ,Multi omics ,cancer hallmarks ,Human genome ,Carcinogenesis - Abstract
The accumulation of somatic driver mutations in the human genome enables cells to gradually acquire a growth advantage and contributes to tumor development. Great efforts on protein-coding cancer drivers have yielded fruitful discoveries and clinical applications. However, investigations on cancer drivers in non-coding regions, especially long non-coding RNAs (lncRNAs), are extremely scarce due to the limitation of functional understanding. Thus, to identify driver lncRNAs integrating multi-omics data in human cancers, we proposed a computational framework, DriverLncNet, which dissected the functional impact of somatic copy number alteration (CNA) of lncRNAs on regulatory networks and captured key functional effectors in dys-regulatory networks. Applying it to 5 cancer types from The Cancer Genome Atlas (TCGA), we portrayed the landscape of 117 driver lncRNAs and revealed their associated cancer hallmarks through their functional effectors. Moreover, lncRNA RP11-571M6.8 was detected to be highly associated with immunotherapeutic targets (PD-1, PD-L1, and CTLA-4) and regulatory T cell infiltration level and their markers (IL2RA and FCGR2B) in glioblastoma multiforme, highlighting its immunosuppressive function. Meanwhile, a high expression of RP11-1020A11.1 in bladder carcinoma was predictive of poor survival independent of clinical characteristics, and CTD-2256P15.2 in lung adenocarcinoma responded to the sensitivity of methyl ethyl ketone (MEK) inhibitors. In summary, this study provided a framework to decipher the mechanisms of tumorigenesis from driver lncRNA level, established a new landscape of driver lncRNAs in human cancers, and offered potential clinical implications for precision oncology. Keywords: cancer drivers, long non-coding RNAs, copy number alterations, cancer hallmarks, immunosuppression
- Published
- 2019
39. Systematic identification of lincRNA‐based prognostic biomarkers by integrating lincRNA expression and copy number variation in lung adenocarcinoma
- Author
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Jing Bai, Li Wang, Hongying Zhao, Yunpeng Zhang, Jing Li, Yingqi Xu, Xia Li, Yulan Deng, Chunyu Deng, and Yun Xiao
- Subjects
Cancer Research ,Gene Dosage ,Adenocarcinoma of Lung ,Biology ,medicine.disease_cause ,Proto-Oncogene Mas ,Telomere organization ,03 medical and health sciences ,0302 clinical medicine ,Biomarkers, Tumor ,medicine ,Humans ,Copy-number variation ,Sequence Analysis, RNA ,Gene Expression Profiling ,Cancer ,DNA Methylation ,Prognosis ,medicine.disease ,Survival Analysis ,Up-Regulation ,Gene Expression Regulation, Neoplastic ,Oncology ,Vascular endothelial growth factor C ,030220 oncology & carcinogenesis ,Cancer research ,Adenocarcinoma ,RNA, Long Noncoding ,CDKN1B ,KRAS ,Carcinogenesis ,Signal Transduction - Abstract
Copy number alterations (CNAs) of lincRNAs act as one of important mechanisms in disrupting lincRNA expression which may play critical roles during tumorigenesis in lung adenocarcinoma (LUAD). The copy number alterations of lincRNAs can mark the spectrum of cancer progression and may serve as biomarkers for prognosis in LUAD, however it is rarely studied. We analyzed RNASeq data for 488 LUAD patients from TCGA portal and 58 healthy subjects to identify prognostic lincRNAs predictive of patient survival. Computational analysis entailing integration of expression and copy number alteration data revealed five prognostic lincRNAs: RBPMS-AS1, TDRKH-AS1, LINC00578, RP11-470 M17.2 and LINC00941. The copy number alterations in the LINC00578 and RP11-470 M17.2 genes were positively associated with the longer overall survival of LUAD patients. The CNA in LINC00941 was negatively associated with the longer overall survival. Copy number amplification significantly correlated with increased expression of TDRKH-AS1, which regulates telomere organization and EZH2-mediated epigenetic silencing of CDKN1A, CDKN1B and IL24. Decreased survival of LUAD patients was associated with high LINC00941 expression. The LINC00941 regulates the PI3K-AKT signaling pathway, focal adhesion by influencing potential targets, such as KRAS proto-oncogene GTPase and VEGFC. These lincRNA-based prognostic biomarkers may destroy important cancer-related biological processes contributing to LUAD prognosis. In summary, we demonstrate the prognostic potential of four differentially expressed lincRNAs with copy number alterations (RBPMS-AS1, TDRKH-AS1, LINC00578 and RP11-470 M17.2) that are positively associated with longer overall survival of LUAD patients. One differentially expressed lincRNA LINC00941 with copy number alterations was negatively associated with longer overall survival of LUAD patients.
- Published
- 2018
40. TIP: A Web Server for Resolving Tumor Immunophenotype Profiling
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Xia Li, Yun Xiao, Wei Liu, Xinxin Zhang, Zhilin Long, Tingting Zhao, Feng Li, Huating Yuan, Bo Pang, Min Yan, Peng Cheng, Gaoming Liao, Liwen Xu, and Chunyu Deng
- Subjects
0301 basic medicine ,Anticancer immunity ,Cancer Research ,Web server ,Computer science ,medicine.medical_treatment ,Computational biology ,Web Browser ,computer.software_genre ,Immunophenotyping ,03 medical and health sciences ,Immune system ,Cancer immunotherapy ,Neoplasms ,Cancer genome ,Biomarkers, Tumor ,medicine ,Humans ,Profiling (information science) ,Computational Biology ,Immunotherapy ,030104 developmental biology ,Oncology ,computer ,Software - Abstract
Systematically tracking the tumor immunophenotype is required to understand the mechanisms of cancer immunity and improve clinical benefit of cancer immunotherapy. However, progress in current research is hindered by the lack of comprehensive immune activity resources and easy-to-use tools for biologists, clinicians, and researchers to conveniently evaluate immune activity during the “cancer-immunity cycle.” We developed a user-friendly one-stop shop web tool called TIP to comprehensively resolve tumor immunophenotype. TIP has the capability to rapidly analyze and intuitively visualize the activity of anticancer immunity and the extent of tumor-infiltrating immune cells across the seven-step cancer-immunity cycle. Also, we precalculated the pan-cancer immunophenotype for 11,373 samples from 33 The Cancer Genome Atlas human cancers that allow users to obtain and compare immunophenotype of pan-cancer samples. We expect TIP to be useful in a large number of emerging cancer immunity studies and development of effective immunotherapy biomarkers. TIP is freely available for use at http://biocc.hrbmu.edu.cn/TIP/. Significance: TIP is a one-stop shop platform that can help biologists, clinicians, and researchers conveniently evaluate anticancer immune activity with their own gene expression data. See related commentary by Hirano, p. 6536
- Published
- 2018
41. Residential Demand Response Strategy Based on Deep Deterministic Policy Gradient
- Author
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Kehe Wu and Chunyu Deng
- Subjects
Computer science ,020209 energy ,Bioengineering ,02 engineering and technology ,lcsh:Chemical technology ,Demand response ,lcsh:Chemistry ,Electric power system ,deep deterministic policy gradient ,0202 electrical engineering, electronic engineering, information engineering ,Chemical Engineering (miscellaneous) ,Reinforcement learning ,Electricity market ,lcsh:TP1-1185 ,Consumption (economics) ,deep reinforcement learning ,business.industry ,Process Chemistry and Technology ,Environmental economics ,power consumption strategy optimization ,Incentive ,Smart grid ,lcsh:QD1-999 ,demand response ,020201 artificial intelligence & image processing ,Electricity ,business - Abstract
With the continuous improvement of the power system and the deepening of electricity market reform, the trend of users’ active participation in power distribution is more and more significant. Demand response has become the promising focus of smart grid research. Providing reasonable incentive strategies for power grid companies and demand response strategies for customers plays a crucial role in maximizing the benefits of different participants. To meet different expectations of multiple agents in the same environment, deep reinforcement learning was adopted. The generative model of residential demand response strategy under different incentive policies can be trained iteratively through real-time interactions with the environmental conditions. In this paper, a novel optimization model of residential demand response strategy, based on a deep deterministic policy gradient (DDPG) algorithm, was proposed. The proposed work was validated with the actual electricity consumption data of a certain area in China. The results showed that the DDPG model could optimize residential demand response strategy under certain incentive policies. In addition, the overall goal of peak load-cutting and valley filling can be achieved, which reflects promising prospects of the electricity market.
- Published
- 2021
42. Systematic Assessment of Transcriptomic Biomarkers for Immune Checkpoint Blockade Response in Cancer Immunotherapy
- Author
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Jiali Zhu, Liwen Xu, Linyun Wan, Bo Pang, Yun Xiao, Shuting Zhou, Zhilin Long, Lin Pang, Xinxin Zhang, Shangqin Sun, and Chunyu Deng
- Subjects
0301 basic medicine ,Oncology ,Cancer Research ,medicine.medical_specialty ,comparative analysis ,medicine.medical_treatment ,transcriptomic biomarkers ,lcsh:RC254-282 ,Article ,immune response ,Transcriptome ,03 medical and health sciences ,0302 clinical medicine ,Immune system ,Cancer immunotherapy ,Internal medicine ,Medicine ,business.industry ,Melanoma ,Cancer ,Immunotherapy ,medicine.disease ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,Immune checkpoint ,immune checkpoint blockade (ICB) ,030104 developmental biology ,030220 oncology & carcinogenesis ,Biomarker (medicine) ,immunotherapy ,business - Abstract
Simple Summary The aim of our study was to evaluate the predictive performance of transcriptomic biomarkers to immune response. The study collected 22 transcriptomic biomarkers and constructed multiple benchmark datasets to evaluate their predictive performance of immune checkpoint blockade (ICB) response in pre-treatment patients with distinct ICB agents in diverse cancers. We found “Immune-checkpoint molecule” biomarkers PD-L1, PD-L2, CTLA-4 and IMPRES and the “Effector molecule” biomarker CYT showed significant associations with ICB response and clinical outcomes. These immune-checkpoint biomarkers and another immune effector IFN-gamma presented predictive ability in melanoma, urothelial cancer and clear cell renal-cell cancer. Interestingly, for anti-PD-1 therapy and anti-CTLA-4 therapy, the top-performing response biomarkers were usually mutually exclusive even though in the same biomarker category and most of biomarkers with outstanding predictive power were observed in patients with combined anti-PD-1 and anti-CTLA-4 therapy. Abstract Background: Immune checkpoint blockade (ICB) therapy has yielded successful clinical responses in treatment of a minority of patients in certain cancer types. Substantial efforts were made to establish biomarkers for predicting responsiveness to ICB. However, the systematic assessment of these ICB response biomarkers remains insufficient. Methods: We collected 22 transcriptome-based biomarkers for ICB response and constructed multiple benchmark datasets to evaluate the associations with clinical response, predictive performance, and clinical efficacy of them in pre-treatment patients with distinct ICB agents in diverse cancers. Results: Overall, “Immune-checkpoint molecule” biomarkers PD-L1, PD-L2, CTLA-4 and IMPRES and the “Effector molecule” biomarker CYT showed significant associations with ICB response and clinical outcomes. These immune-checkpoint biomarkers and another immune effector IFN-gamma presented predictive ability in melanoma, urothelial cancer (UC) and clear cell renal-cell cancer (ccRCC). In non-small cell lung cancer (NSCLC), only PD-L2 and CTLA-4 showed preferable correlation with clinical response. Under different ICB therapies, the top-performing biomarkers were usually mutually exclusive in patients with anti-PD-1 and anti-CTLA-4 therapy, and most of biomarkers presented outstanding predictive power in patients with combined anti-PD-1 and anti-CTLA-4 therapy. Conclusions: Our results show these biomarkers had different performance in predicting ICB response across distinct ICB agents in diverse cancers.
- Published
- 2021
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43. Thromboxane A
- Author
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Juan, Hu, Zhenzhen, Yang, Xueqin, Chen, Sujuan, Kuang, Zhiwen, Lian, Guibao, Ke, Ruyi, Liao, Jianchao, Ma, Sijia, Li, Li, Zhang, Zhuo, Li, Zhonglin, Feng, Huaban, Liang, Ting, Lin, Wei, Dong, Ruizhao, Li, Zhilian, Li, Yuanhan, Chen, Xinling, Liang, Wei, Shi, Chunyu, Deng, and Shuangxin, Liu
- Subjects
Male ,Disease Models, Animal ,Thromboxane A2 ,Vasoconstriction ,15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic Acid ,Hypertension ,Receptors, Thromboxane ,Animals ,Humans ,Vasoconstrictor Agents ,Aorta, Thoracic ,Renal Insufficiency, Chronic ,Rats - Abstract
Hypertension is one of the most common complications of chronic kidney disease (CKD). Some research has indicated that changes in large artery function especially caused by thromboxane A2 (TXA2) may be a novel factor acting to induce hypertension in CKD. We studied the 5/6 nephrectomy rat model and measured serum levels of creatinine (Cr), calcium (Ca), phosphorus (P), TXA2-stable metabolites (thromboxane B2, TXB2), and caudal artery pressure after nephrectomy. The tension variations in thoracic aortas were measured after stimulating by vasoconstrictor/vasodilator using the cumulative concentration administration method and then tested the expression of TXA2 receptors in the thoracic aortas through western blots. The CKD rats developed uremia, electrolyte imbalances,and hypertension. They also exhibited a significant increase in TXB2 concentration. The aortic rings of CKD rats showed an increased contraction response to U46619 (a TXA2 analogue) and the expression of TXA2 receptors also enhanced. In the meanwhile, the diastolic function decreased in the CKD group. Our results demonstrate that the impairment of artery contractile function caused by the increase of TXA2 receptors on the wall of aortic rings may be involved in hypertension in CKD rats.
- Published
- 2021
44. Photonic generation of broadband linearly chirped microwave waveform based on a low-loss silicon on-chip spectral shaper
- Author
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Yu, Sun, Dongyu, Wang, Chunyu, Deng, Mengjia, Lu, Lei, Huang, Guohua, Hu, Binfeng, Yun, and Yiping, Cui
- Subjects
Atomic and Molecular Physics, and Optics - Abstract
A silicon on-chip spectral shaper based on a Sagnac loop incorporating a chirped multi-mode waveguide Bragg grating (WBG) for linearly chirped microwave waveform generation is fabricated and demonstrated. The transmission spectrum of the spectral shaper displays low insertion loss characteristic due to the application of edge coupling taper and multi-mode waveguide based grating. An up-chirped microwave waveform with bandwidth as large as 44 GHz is generated by mapping the spectrum profile of the spectral shaper to the temporal domain through a dispersion fiber. The instantaneous frequency of the generated signal shows good linearity benefiting from the weak modulation strength in the multi-mode WBG. The low insertion loss performance as well as the low dispersion value required in our design presents feasibility in further integration with on-chip dispersion.
- Published
- 2022
45. Highly efficient and controllable photoluminescence emission on a suspended MoS
- Author
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Lei, Huang, Huanhuan, Su, Guohua, Hu, Shan, Wu, Yongkang, Wang, Boyu, Chen, Qianjin, Wang, Chunyu, Deng, Binfeng, Yun, Ruohu, Zhang, and Yiping, Cui
- Abstract
Being a new class of materials, transition metal dichalcogenides are paving the way for applications in atomically thin optoelectronics. However, the intrinsically weak light-matter interaction and the lack of manipulation ability has lead to poor light emission and tunable behavior. Here, we investigate the fluorescence characteristic of monolayer molybdenum disulfide on a metal narrow-slit grating, where a highly efficient, 471 times photoluminescence enhancement are realized, based on the hybrid surface plasmon polaritons resonances and the decreased influence of substrate. Moreover, the emitted intensity and polarization are controllable due to the polarization-dependent characteristic and anisotropy of grating. The manipulations of light-matter interactions in this special system provide a new insight into the fluorescent emission process and open a new avenue for high-performance low dimensional materials devices designs.
- Published
- 2020
46. Deep Reinforcement Learning Approach for Autonomous Agents in Consumer-centric Electricity Market
- Author
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Xinying Wang, Chunyu Deng, Dongxia Zhang, and Yuankun Liu
- Subjects
business.industry ,Computer science ,020209 energy ,Big data ,Autonomous agent ,02 engineering and technology ,Environmental economics ,021001 nanoscience & nanotechnology ,Smart grid ,Distributed generation ,0202 electrical engineering, electronic engineering, information engineering ,Electricity market ,Reinforcement learning ,Profitability index ,0210 nano-technology ,business - Abstract
With the development of distributed energy, many novel electricity market mechanisms are emerging. The consumer-centric electricity market, which includes the peer-to-peer (P2P) model and the community-based market, arouses more attention in academia and industry area. This paper applies the Deep Q-Learning (DQN) for autonomous agents in the consumer-centric electricity market. Both the local energy priority transactions and public shared energy facilities are taking into consideration. We generated a test dataset and compared results in 5 different scenarios. This study verifies that the applied data-driven methods can handle the peer-to-peer (P2P) decision-making problem as well as promote the profitability of the whole community in the electricity market. Furthermore, multi-agent cooperation with public resources is more appropriate than other situations.
- Published
- 2020
47. Prioritizing Gene Cascading Paths to Model Colorectal Cancer Through Engineered Organoids
- Author
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Yanyan Ping, Chaohan Xu, Liwen Xu, Gaoming Liao, Yao Zhou, Chunyu Deng, Yujia Lan, Fulong Yu, Jian Shi, Li Wang, Yun Xiao, and Xia Li
- Subjects
0301 basic medicine ,Histology ,Colorectal cancer ,lcsh:Biotechnology ,Biomedical Engineering ,Cancer therapy ,random walk with restart ,colorectal cancer ,Bioengineering ,02 engineering and technology ,Computational biology ,Biology ,medicine.disease_cause ,prioritizing ,03 medical and health sciences ,lcsh:TP248.13-248.65 ,medicine ,Organoid ,neoplasms ,Gene ,Original Research ,Mutation ,Mechanism (biology) ,engineered organoids ,Bioengineering and Biotechnology ,Cancer ,021001 nanoscience & nanotechnology ,medicine.disease ,gene cascading paths ,digestive system diseases ,030104 developmental biology ,KRAS ,0210 nano-technology ,Biotechnology - Abstract
Engineered organoids by sequential introduction of key mutations could help modeling the dynamic cancer progression. However, it remains difficult to determine gene paths which were sufficient to capture cancer behaviors and to broadly explain cancer mechanisms. Here, as a case study of colorectal cancer (CRC), functional and dynamic characterizations of five types of engineered organoids with different mutation combinations of five driver genes (APC, SMAD4, KRAS, TP53, and PIK3CA) showed that sequential introductions of all five driver mutations could induce enhanced activation of more hallmark signatures, tending to cancer. Comparative analysis of engineered organoids and corresponding CRC tissues revealed sequential introduction of key mutations could continually shorten the biological distance from engineered organoids to CRC tissues. Nevertheless, there still existed substantial biological gaps between the engineered organoid even with five key mutations and CRC samples. Thus, we proposed an integrative strategy to prioritize gene cascading paths for shrinking biological gaps between engineered organoids and CRC tissues. Our results not only recapitulated the well-known adenoma–carcinoma sequence model (e.g., AKST-organoid with driver mutations in APC, KRAS, SMAD4, and TP53), but also provided potential paths for delineating alternative pathogenesis underlying CRC populations (e.g., A-organoid with APC mutation). Our strategy also can be applied to both organoids with more mutations and other cancers, which can improve and innovate mechanism across cancer patients for drug design and cancer therapy.
- Published
- 2020
48. Residential appliance detection based on attention-based deep convolutional neural network
- Author
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Binbin Wang, Kehe Wu, and Chunyu Deng
- Subjects
Consumption (economics) ,Computer science ,Smart meter ,business.industry ,Deep learning ,Energy consumption ,Machine learning ,computer.software_genre ,Convolutional neural network ,Electronic, Optical and Magnetic Materials ,General Energy ,Electricity market ,Artificial intelligence ,Electrical and Electronic Engineering ,Hidden Markov model ,business ,computer ,Efficient energy use - Abstract
Improving energy efficiency management has become an important task for current electricity market participating entities, and monitoring consumption of pivotal appliances plays an important role in many applications. This paper focuses on detecting whether a residence hold a certain type appliance based on their electricity consumption. We propose a data-driven deep learning approach with attention mechanism to detect residential appliances from low-resolution aggregate energy consumption data. Firstly, the historical consumption profile of each user is divided into a specific length and labeled with the status of an appliance to generate training and test samples; Then a deep convolutional neural network model with attention mechanism is trained, and the trained model is utilized to classify the test samples; Finally, we obtain appliance status in a residence based on classification of multiple samples. Experiments are conducted on a low-frequency smart meter data set sampled once every 30 minutes, whose results show our proposed model performs better than hidden Markov model based algorithms and has good application prospects.
- Published
- 2020
49. Post Evaluation of Power Grid Project Based on Rough Set and Improved Multi-Level Extension Assessment
- Author
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Chunyu Deng and Hao Li Wenjing Chen
- Abstract
Post evaluation of power grid investment and construction project is an important part of power grid construction project. The effect of post evaluation will directly affect the quality level of project construction. Therefore, this paper proposes an improved post evaluation system based on rough set and fuzzy multi-level extension. Firstly, the main factors affecting the function effect of power grid construction project are analyzed. Then, the improved fuzzy multi-level extension evaluation model is constructed by combining fuzzy comprehensive evaluation theory with multi-level extension evaluation method. Finally, a 220 kV substation construction project is taken as an example to verify the validity and rationality of the model.
- Published
- 2022
50. CancerSEA: a cancer single-cell state atlas
- Author
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Liwen Xu, Gaoming Liao, Xia Li, Huating Yuan, Haoteng Yan, Chunyu Deng, Guanxiong Zhang, Aiai Shi, Tao Luo, Wei Liu, Yun Xiao, Zhilin Long, Tingting Zhao, and Min Yan
- Subjects
DNA repair ,Angiogenesis ,RNA-Seq ,Computational biology ,Biology ,Metastasis ,03 medical and health sciences ,0302 clinical medicine ,Single-cell analysis ,Neoplasms ,Databases, Genetic ,Genetics ,medicine ,Humans ,Database Issue ,Gene ,030304 developmental biology ,0303 health sciences ,Proteins ,Cell cycle ,medicine.disease ,Cancer cell ,RNA, Long Noncoding ,Single-Cell Analysis ,030217 neurology & neurosurgery - Abstract
High functional heterogeneity of cancer cells poses a major challenge for cancer research. Single-cell sequencing technology provides an unprecedented opportunity to decipher diverse functional states of cancer cells at single-cell resolution, and cancer scRNA-seq datasets have been largely accumulated. This emphasizes the urgent need to build a dedicated resource to decode the functional states of cancer single cells. Here, we developed CancerSEA (http://biocc.hrbmu.edu.cn/CancerSEA/ or http://202.97.205.69/CancerSEA/), the first dedicated database that aims to comprehensively explore distinct functional states of cancer cells at the single-cell level. CancerSEA portrays a cancer single-cell functional state atlas, involving 14 functional states (including stemness, invasion, metastasis, proliferation, EMT, angiogenesis, apoptosis, cell cycle, differentiation, DNA damage, DNA repair, hypoxia, inflammation and quiescence) of 41 900 cancer single cells from 25 cancer types. It allows querying which functional states are associated with the gene (or gene list) of interest in different cancers. CancerSEA also provides functional state-associated PCG/lncRNA repertoires across all cancers, in specific cancers, and in individual cancer single-cell datasets. In summary, CancerSEA provides a user-friendly interface for comprehensively searching, browsing, visualizing and downloading functional state activity profiles of tens of thousands of cancer single cells and the corresponding PCGs/lncRNAs expression profiles.
- Published
- 2018
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