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Your search keyword '"He, Yuanzheng"' showing total 2 results
Start Over Author "He, Yuanzheng" Publisher escholarship, university of california
2 results on '"He, Yuanzheng"'

1. Development of highly potent glucocorticoids for steroid-resistant severe asthma

Author

He, Yuanzheng, Shi, Jingjing, Nguyen, Quang Tam, You, Erli, Liu, Hongbo, Ren, Xin, Wu, Zhongshan, Li, Jianshuang, Qiu, Wenli, Khoo, Sok Kean, Yang, Tao, Yi, Wei, Sun, Feng, Xi, Zhijian, Huang, Xiaozhu, Melcher, Karsten, Min, Booki, and Xu, H Eric

Subjects
Lung, Asthma, Development of treatments and therapeutic interventions, 5.1 Pharmaceuticals, Respiratory, Animals, Anti-Asthmatic Agents, Disease Models, Animal, Drug Development, Female, Glucocorticoids, Male, Mice, Receptors, Glucocorticoid, Severity of Illness Index, steroid resistant asthma, glucocorticoid, high potency, VSG158, VSG159, steroid-resistant asthma
Abstract

Clinical application of inhaled glucocorticoids (GCs) has been hampered in the case of steroid-resistant severe asthma. To overcome this limitation, we have developed a series of highly potent GCs, including VSGC12, VSG158, and VSG159 based on the structural insight into the glucocorticoid receptor (GR). Particularly, VSG158 exhibits a maximal repression of lung inflammation and is 10 times more potent than the currently most potent clinical GC, Fluticasone Furoate (FF), in a murine model of asthma. More importantly, VSG158 displays a unique property to reduce neutrophilic inflammation in a steroid-resistant airway inflammation model, which is refractory to clinically available GCs, including dexamethasone and FF. VSG158 and VSG159 are able to deliver effective treatments with reduced off-target and side effects. In addition, these GCs also display pharmacokinetic properties that are suitable for the inhalation delivery method for asthma treatment. Taken together, the excellent therapeutic and side-effect profile of these highly potent GCs holds promise for treating steroid-resistant severe asthma.

Published
2019

2. Crystal structure of rhodopsin bound to arrestin by femtosecond X-ray laser

Author

Kang, Yanyong, Zhou, X Edward, Gao, Xiang, He, Yuanzheng, Liu, Wei, Ishchenko, Andrii, Barty, Anton, White, Thomas A, Yefanov, Oleksandr, Han, Gye Won, Xu, Qingping, de Waal, Parker W, Ke, Jiyuan, Tan, MH Eileen, Zhang, Chenghai, Moeller, Arne, West, Graham M, Pascal, Bruce D, Van Eps, Ned, Caro, Lydia N, Vishnivetskiy, Sergey A, Lee, Regina J, Suino-Powell, Kelly M, Gu, Xin, Pal, Kuntal, Ma, Jinming, Zhi, Xiaoyong, Boutet, Sébastien, Williams, Garth J, Messerschmidt, Marc, Gati, Cornelius, Zatsepin, Nadia A, Wang, Dingjie, James, Daniel, Basu, Shibom, Roy-Chowdhury, Shatabdi, Conrad, Chelsie E, Coe, Jesse, Liu, Haiguang, Lisova, Stella, Kupitz, Christopher, Grotjohann, Ingo, Fromme, Raimund, Jiang, Yi, Tan, Minjia, Yang, Huaiyu, Li, Jun, Wang, Meitian, Zheng, Zhong, Li, Dianfan, Howe, Nicole, Zhao, Yingming, Standfuss, Jörg, Diederichs, Kay, Dong, Yuhui, Potter, Clinton S, Carragher, Bridget, Caffrey, Martin, Jiang, Hualiang, Chapman, Henry N, Spence, John CH, Fromme, Petra, Weierstall, Uwe, Ernst, Oliver P, Katritch, Vsevolod, Gurevich, Vsevolod V, Griffin, Patrick R, Hubbell, Wayne L, Stevens, Raymond C, Cherezov, Vadim, Melcher, Karsten, and Xu, H Eric

Subjects
1.1 Normal biological development and functioning, Underpinning research, Generic health relevance, Animals, Arrestin, Binding Sites, Crystallography, X-Ray, Disulfides, Humans, Lasers, Mice, Models, Molecular, Multiprotein Complexes, Protein Binding, Reproducibility of Results, Rhodopsin, Signal Transduction, X-Rays, General Science & Technology
Abstract

G-protein-coupled receptors (GPCRs) signal primarily through G proteins or arrestins. Arrestin binding to GPCRs blocks G protein interaction and redirects signalling to numerous G-protein-independent pathways. Here we report the crystal structure of a constitutively active form of human rhodopsin bound to a pre-activated form of the mouse visual arrestin, determined by serial femtosecond X-ray laser crystallography. Together with extensive biochemical and mutagenesis data, the structure reveals an overall architecture of the rhodopsin-arrestin assembly in which rhodopsin uses distinct structural elements, including transmembrane helix 7 and helix 8, to recruit arrestin. Correspondingly, arrestin adopts the pre-activated conformation, with a ∼20° rotation between the amino and carboxy domains, which opens up a cleft in arrestin to accommodate a short helix formed by the second intracellular loop of rhodopsin. This structure provides a basis for understanding GPCR-mediated arrestin-biased signalling and demonstrates the power of X-ray lasers for advancing the frontiers of structural biology.

Published
2015

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