10 results on '"Lin Ao"'
Search Results
2. Changes of T lymphocyte subpopulations and their roles in predicting the risk of Parkinson’s disease
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He, Yijing, primary, Peng, Kangwen, additional, Li, Ruoyu, additional, Zhang, Zhuoyu, additional, Pan, Lizhen, additional, Zhang, Tianyu, additional, Lin, Ao, additional, Hong, Ronghua, additional, Nie, Zhiyu, additional, Guan, Qiang, additional, and Jin, Lingjing, additional
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- 2022
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3. Automated and accurate assessment for postural abnormalities in patients with Parkinson’s disease based on Kinect and machine learning
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Zhang, Zhuoyu, primary, Hong, Ronghua, additional, Lin, Ao, additional, Su, Xiaoyun, additional, Jin, Yue, additional, Gao, Yichen, additional, Peng, Kangwen, additional, Li, Yudi, additional, Zhang, Tianyu, additional, Zhi, Hongping, additional, Guan, Qiang, additional, and Jin, LingJing, additional
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- 2021
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4. Deficiency of Tfh Cells and Germinal Center in Deceased COVID-19 Patients
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Qian Chu, Dong Kuang, Yan fang Zhang, San peng Xu, Qi lin Ao, Bing Yan, Ya qi Duan, Liang Ren, Yi wu Zhou, Guoping Wang, Liang Liu, Qian Liu, Xiang-Ping Yang, and Ming hui Xia
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Male ,China ,Pneumonia, Viral ,Disease ,Adaptive Immunity ,Biochemistry ,Article ,Betacoronavirus ,Fatal Outcome ,Immune system ,Lymphopenia ,medicine ,Genetics ,Humans ,Pandemics ,Aged ,Aged, 80 and over ,Lung ,SARS-CoV-2 ,business.industry ,Macrophages ,Case-control study ,COVID-19 ,Germinal center ,T-Lymphocytes, Helper-Inducer ,Middle Aged ,Germinal Center ,Acquired immune system ,immune responses ,medicine.anatomical_structure ,Case-Control Studies ,Humoral immunity ,Immunology ,T follicular helper cells ,Immunohistochemistry ,Female ,Coronavirus Infections ,business - Abstract
Summary The COVID-19 pandemic caused by SARS-CoV2 is characterized by a remarkable variation in clinical severity ranging from a mild illness to a fatal multi-organ disease. Understanding the dysregulated human immune responses in the fatal subjects is critical for management of COVID-19 patients and the pandemic. In this study, we examined the immune cell compositions in the lung tissues and hilar lymph nodes using immunohistochemistry on 6 deceased COVID-19 patients and 4 focal organizing pneumonia (FOP) patients who underwent lung surgery and served as controls. We found a dominant presence of macrophages and a general deficiency of T cells and B cells in the lung tissues from deceased COVID-19 patients. In contrast to the FOP patients, Tfh cells and germinal center formation were largely absent in the draining hilar lymph nodes in the deceased COVID-19 patients. This was correlated with reduced IgM and IgG levels compared to convalescent COVID-19 patients. In summary, our data highlight a defect of germinal center structure in deceased COVID-19 patients leading to an impaired humoral immunity. Understanding the mechanisms of this deficiency will be one of the key points for the management of this epidemic.
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- 2020
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5. Investigation of modulation transfer function in InGaAs photodetector small pitch array based on three-dimensional numerical analysis
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Guo-feng Song, Yun Xu, and Lin-ao Zhang
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Materials science ,business.industry ,Photodetector ,02 engineering and technology ,Large format ,Specific detectivity ,021001 nanoscience & nanotechnology ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,010309 optics ,Cardinal point ,Planar ,Depletion region ,Optical transfer function ,Lattice (order) ,0103 physical sciences ,Optoelectronics ,Electrical and Electronic Engineering ,0210 nano-technology ,business - Abstract
Three-dimensional numerical simulation technology was used to investigate the influence of structural and material parameters on the modulation transfer function (MTF) of lattice matched InGaAs/InP planar small pitch arrays. We found that extending depletion zone through increasing depth of diffusion junction and reducing the doping concentration in the absorption layer plays a critical role in optimizing the MTF of arrays. And it is highly worth noting that the very optimization effects become even more pronounced in smaller pitch arrays, which offers valuable references to restrain crosstalk in highly dense array and strengthen the imaging ability of large format photodetector system in future. However, the inevitable cost of deteriorating the specific detectivity should not be ignored. And hence, junction depth and doping concentration of the absorption layer need to be balanced in actual preparation. In addition, the effects of lattice temperature on MTF and crosstalk in arrays were also discussed. The inter-pixel crosstalk deteriorates seriously as rising lattice temperature. A stronger impact of lattice temperature on MTF of larger pitch arrays has been confirmed. This work offers important reference to suppress inter-pixel crosstalk in obtaining the high-resolution imaging for InGaAs photodetector focal plane array.
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- 2020
6. TC2N, a novel oncogene, accelerates tumor progression by suppressing p53 signaling pathway in lung cancer
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Ning Zhang, Zhihong Cui, Xiao Jiang, Fei Han, Jinyi Liu, Xiang-Lin Hao, Hongqiang Chen, Lin Ao, Dan-Dan Wang, Wen-bin Liu, Jia Cao, Li Yin, and Jian-Ping Chen
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0301 basic medicine ,Lung Neoplasms ,Cell cycle checkpoint ,Apoptosis ,Kaplan-Meier Estimate ,medicine.disease_cause ,Article ,Cell Line ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Humans ,RNA-Seq ,Lung cancer ,Molecular Biology ,Cell Proliferation ,Antibiotics, Antineoplastic ,Oncogene ,Cell growth ,Chemistry ,Cancer ,Cell Cycle Checkpoints ,Oncogenes ,Cell Biology ,medicine.disease ,030104 developmental biology ,Doxorubicin ,Tumor progression ,030220 oncology & carcinogenesis ,Disease Progression ,Cancer research ,Tumor Suppressor Protein p53 ,Carcinogenesis ,Non-small-cell lung cancer ,Signal Transduction - Abstract
The protein containing the C2 domain has been well documented for its essential roles in endocytosis, cellular metabolism and cancer. Tac2-N (TC2N) is a tandem C2 domain-containing protein, but its function, including its role in tumorigenesis, remains unknown. Here, we first identified TC2N as a novel oncogene in lung cancer. TC2N was preferentially upregulated in lung cancer tissues compared with adjacent normal lung tissues. High TC2N expression was significantly associated with poor outcome of lung cancer patients. Knockdown of TC2N markedly induces cell apoptosis and cell cycle arrest with repressing proliferation in vitro, and suppresses tumorigenicity in vivo, whereas overexpression of TC2N has the opposite effects both in vitro and in vivo. Using a combination of TCGA database and bioinformatics, we demonstrate that TC2N is involved in regulation of the p53 signaling pathway. Mechanistically, TC2N attenuates p53 signaling pathway through inhibiting Cdk5-induced phosphorylation of p53 via inducing Cdk5 degradation or disrupting the interaction between Cdk5 and p53. Moreover, the blockade of p53 attenuates the function of TC2N knockdown in the regulation of cell proliferation and apoptosis. In addition, downregulated TC2N is involved in the apoptosis of lung cancer cells induced by doxorubicin, leading to p53 pathway activation. Overall, these findings uncover a role for the p53 inactivator TC2N in regulating the proliferation and apoptosis of lung cancer cells. Our present study provides novel insights into the mechanism of tumorigenesis in lung cancer.
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- 2018
7. Investigation of modulation transfer function in InGaAs photodetector small pitch array based on three-dimensional numerical analysis
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Zhang, Lin-ao, primary, Xu, Yun, additional, and Song, Guo-feng, additional
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- 2020
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8. The Interaction of Mitochondrial Biogenesis and Fission/Fusion Mediated by PGC-1α Regulates Rotenone-Induced Dopaminergic Neurotoxicity
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Guorong Dan, Zhongmin Zou, Zhihong Cui, Jian Wang, Feng Ye, Lin Ao, Likui Yang, Ying Cai, Yan Sai, Jinyi Liu, Kaige Peng, Jia Cao, and Yuanpeng Zhao
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0301 basic medicine ,FIS1 ,Cell Survival ,Neurotoxins ,Neuroscience (miscellaneous) ,MFN2 ,Mitochondrion ,Biology ,DNA, Mitochondrial ,Mitochondrial Dynamics ,PC12 Cells ,03 medical and health sciences ,Cellular and Molecular Neuroscience ,Rotenone ,Animals ,Phosphorylation ,Membrane Potential, Mitochondrial ,Organelle Biogenesis ,Dopaminergic Neurons ,Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha ,Mitochondria ,Rats ,Cell biology ,030104 developmental biology ,Neurology ,Biochemistry ,mitochondrial fusion ,Mitochondrial biogenesis ,DNAJA3 ,Mitochondrial fission ,PPARGC1A - Abstract
Parkinson's disease is a common neurodegenerative disease in the elderly, and mitochondrial defects underlie the pathogenesis of PD. Impairment of mitochondrial homeostasis results in reactive oxygen species formation, which in turn can potentiate the accumulation of dysfunctional mitochondria, forming a vicious cycle in the neuron. Mitochondrial fission/fusion and biogenesis play important roles in maintaining mitochondrial homeostasis. It has been reported that PGC-1α is a powerful transcription factor that is widely involved in the regulation of mitochondrial biogenesis, oxidative stress, and other processes. Therefore, we explored mitochondrial biogenesis, mitochondrial fission/fusion, and especially PGC-1α as the key point in the signaling mechanism of their interaction in rotenone-induced dopamine neurotoxicity. The results showed that mitochondrial number and mass were reduced significantly, accompanied by alterations in proteins known to regulate mitochondrial fission/fusion (MFN2, OPA1, Drp1, and Fis1) and mitochondrial biogenesis (PGC-1α and mtTFA). Further experiments proved that inhibition of mitochondrial fission or promotion of mitochondrial fusion has protective effects in rotenone-induced neurotoxicity and also promotes mitochondrial biogenesis. By establishing cell models of PGC-1α overexpression and reduced expression, we found that PGC-1α can regulate MFN2 and Drp1 protein expression and phosphorylation to influence mitochondrial fission/fusion. In summary, it can be concluded that PGC-1α-mediated cross talk between mitochondrial biogenesis and fission/fusion contributes to rotenone-induced dopaminergic neurodegeneration.
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- 2016
9. SOX30 is a key regulator of desmosomal gene suppressing tumor growth and metastasis in lung adenocarcinoma
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Wen-bin Liu, Xiao Jiang, Fei Han, Li Yin, Bangjin Ma, Ning Zhang, Hongqiang Chen, Xiang-Lin Hao, Jia Cao, Jinyi Liu, and Lin Ao
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Lung adenocarcinoma ,0301 basic medicine ,Cancer Research ,medicine.disease_cause ,Mice ,0302 clinical medicine ,SOX30 ,Gene expression ,Neoplasm Metastasis ,Promoter Regions, Genetic ,Wnt Signaling Pathway ,SOX Transcription Factors ,Mice, Knockout ,Gene knockdown ,Wnt signaling pathway ,Desmosome ,Desmosomes ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,Gene Expression Regulation, Neoplastic ,ERK ,Cell Transformation, Neoplastic ,Oncology ,030220 oncology & carcinogenesis ,Heterografts ,Adenocarcinoma ,MAP Kinase Signaling System ,Adenocarcinoma of Lung ,Biology ,lcsh:RC254-282 ,Models, Biological ,Wnt ,03 medical and health sciences ,Cell Line, Tumor ,medicine ,Animals ,Humans ,Cell Proliferation ,DSC3 ,Reporter gene ,Base Sequence ,Gene Expression Profiling ,Tumor Suppressor Proteins ,Research ,medicine.disease ,Squamous carcinoma ,Disease Models, Animal ,030104 developmental biology ,Cancer research ,Transcriptome ,Carcinogenesis ,Biomarkers - Abstract
Background The expression of desmosomal genes in lung adenocarcinoma and lung squamous carcinoma is different. However, the regulatory mechanism of desmosomal gene expression in lung adenocarcinoma and lung squamous carcinoma remains unknown. Methods The correlation between expression of desmosomal gene expression and SOX30 expression were analyzed by bioinformatics. The expression of SOX30, DSP, JUP and DSC3 were detected in lung cancer cell lines, lung tissues of mice and patients’ tissues by qPCR, WB, Immunofluorescence and Immunohistochemistry. A chromatin Immunoprecipitation assay was used to investigate the mechanisms of the SOX30 regulation on desmosomal gene expression. In vitro proliferation, migration and invasion assays, and an in vivo nude mice model were utilized to assess the important role of desmosomal genes on SOX30-induced tumor suppression. A WB assay and TOP/FOP flash reporter assay was used to investigate the downstream pathway regulated by the SOX30-desmosomal gene axis. A chemical carcinogenic model of SOX30-knockout mice was generated to confirm the role of the SOX30-desmosomal gene axis in tumorigenesis. Results The expression of desmosomal genes were upregulated by SOX30 in lung adenocarcinoma but not in lung squamous carcinoma. Further mechanism studies showed that SOX30 acts as a key transcriptional regulator of desmosomal genes by directly binding to the ACAAT motif of desmosomal genes promoter region and activating their transcription in lung adenocarcinoma. Knockdown of the expression of related desmosomal genes by miRNA significantly attenuated the inhibitory effect of SOX30 on cell proliferation, migration and invasion in vitro and on tumor growth and metastasis in vivo. In addition, knockout of SOX30 promotes lung tumor development and loss the inhibition of desmosomal genes on downstream Wnt and ERK signal in urethane-induced lung carcinogenesis in SOX30-knockout mice. Conclusions Overall, these findings demonstrate for the first time that SOX30 acts as a master switch of desmosomal genes, inhibits lung adenocarcinoma cell proliferation, migration and invasion by activating the transcription of desmosomal genes. This study provides novel insights on the regulatory mechanism of desmosomal genes in lung adenocarcinoma. Electronic supplementary material The online version of this article (10.1186/s13046-018-0778-3) contains supplementary material, which is available to authorized users.
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- 2018
10. Ion beam modification of plasmonic titanium nitride thin films
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Zhang, Lin-ao, primary, Liu, Hao-nan, additional, Suo, Xiao-xia, additional, Tong, Shou, additional, Li, Ying-lan, additional, Jiang, Zhao-tan, additional, and Wang, Zhi, additional
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- 2017
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