MARC

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001 3228184762
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022 |a 2041-1723 
024 7 |a 10.1038/s41467-025-61565-9  |2 doi 
035 |a 3228184762 
045 2 |b d20250101  |b d20251231 
084 |a 145839  |2 nlm 
100 1 |a Chan, Wing-Cheung  |u The Hong Kong Polytechnic University, Department of Applied Biology and Chemical Technology, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); The Hong Kong Polytechnic University, State Key Laboratory of Chemical Biology and Drug Discovery, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123) 
245 1 |a Tetrandrine regulates NAADP-mediated calcium signaling through a LIMP-2-dependent and sphingosine-mediated mechanism 
260 |b Nature Publishing Group  |c 2025 
513 |a Journal Article 
520 3 |a Tetrandrine (Tet) is a potent inhibitor of Ebola virus replication by blocking NAADP-dependent calcium release through endolysosomal two-pore channels (TPCs) and a moderately potent anti-tumor agent. Using a clickable photoaffinity probe, we identify lysosomal integral membrane protein-2 (LIMP-2) as a direct target of Tet and a key regulator of this calcium signaling. Tet binds LIMP-2’s ectodomain, inhibiting lysosomal cholesterol and sphingosine transport, which alters lipid metabolism. Tet treatment and LIMP-2 depletion inhibit NAADP-dependent calcium release, reversible by removing lysosomal cholesterol and sphingosine. Sphingosine triggers lysosomal calcium release via TPCs and restores this signaling in Tet-treated or LIMP-2-deficient cells, revealing a LIMP-2-regulated, sphingosine-dependent lysosomal calcium pathway. At higher doses, Tet induces apoptosis through unfolded protein response activation independently of LIMP-2. These findings highlight Tet as a LIMP-2 inhibitor, elucidate its role in calcium signaling and cell death, and suggest therapeutic potential for Tet and LIMP-2 inhibitors in antiviral treatments.Tetrandrine is one of the most potent inhibitors of Ebola Virus infection. Here the authors identify LIMP-2 as a direct cellular target of Tetrandrine and establish a functional connection between lysosomal sphingosine homeostasis and calcium regulation. 
653 |a Endoplasmic reticulum 
653 |a Cholesterol 
653 |a Calcium signalling 
653 |a Lipid metabolism 
653 |a Tetrandrine 
653 |a Ebola virus 
653 |a Labeling 
653 |a Chemistry 
653 |a Homeostasis 
653 |a Mitochondria 
653 |a Protein folding 
653 |a Viral diseases 
653 |a Peptides 
653 |a Localization 
653 |a Cell culture 
653 |a NAADP 
653 |a Calcium 
653 |a Proteins 
653 |a Cell death 
653 |a Apoptosis 
653 |a Lipids 
653 |a Calcium homeostasis 
653 |a Ebolavirus 
653 |a Environmental 
700 1 |a Zhao, Qian  |u The Hong Kong Polytechnic University, Department of Applied Biology and Chemical Technology, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); The Hong Kong Polytechnic University, State Key Laboratory of Chemical Biology and Drug Discovery, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123) 
700 1 |a Wong, Koon Ho  |u University of Macau, Avenida da Universidade, Taip, Faculty of Health Sciences, Macau SAR, PR China (GRID:grid.437123.0) (ISNI:0000 0004 1794 8068); University of Macau, Avenida da Universidade, Taipa, Institute of Translational Medicine, Macau SAR, PR China (GRID:grid.437123.0) (ISNI:0000 0004 1794 8068); University of Macau, Avenida da Universidade, Taipa, MoE Frontiers Science Center for Precision Oncology, Macau SAR, PR China (GRID:grid.437123.0) (ISNI:0000 0004 1794 8068) 
700 1 |a Tang, Hok-Him  |u The Hong Kong Polytechnic University, Department of Food Science and Nutrition, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); The Hong Kong Polytechnic University, Research Centre for Chinese Medicine Innovation, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123) 
700 1 |a Mok, Daniel Kam-Wah  |u The Hong Kong Polytechnic University, Department of Food Science and Nutrition, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); The Hong Kong Polytechnic University, Research Centre for Chinese Medicine Innovation, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123) 
700 1 |a Pardeshi, Lakhansing  |u University of Macau, Avenida da Universidade, Taip, Faculty of Health Sciences, Macau SAR, PR China (GRID:grid.437123.0) (ISNI:0000 0004 1794 8068); University of Macau, Avenida da Universidade, Taipa, Genomics and Bioinformatics Core, Macau SAR, PR China (GRID:grid.437123.0) (ISNI:0000 0004 1794 8068) 
700 1 |a Ruan, Ye Chun  |u The Hong Kong Polytechnic University, Department of Biomedical Engineering, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123) 
700 1 |a Yang, Yang  |u The Hong Kong Polytechnic University, Department of Applied Biology and Chemical Technology, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); The Hong Kong Polytechnic University, State Key Laboratory of Chemical Biology and Drug Discovery, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123) 
700 1 |a Wong, Chi-Ming  |u The Hong Kong Polytechnic University, Department of Health Technology and Informatics, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123) 
700 1 |a Wong, Clarence T. T.  |u The Hong Kong Polytechnic University, Department of Applied Biology and Chemical Technology, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); The Hong Kong Polytechnic University, State Key Laboratory of Chemical Biology and Drug Discovery, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123) 
700 1 |a Zhao, Yong-Juan  |u The Chinese University of Hong Kong, Ciechanover Institute of Precision and Regenerative Medicine, Shenzhen, PR China (GRID:grid.10784.3a) (ISNI:0000 0004 1937 0482); The Chinese University of Hong Kong, School of Medicine, Shenzhen, PR China (GRID:grid.10784.3a) (ISNI:0000 0004 1937 0482) 
700 1 |a Chan, Ka Ying  |u The Hong Kong Polytechnic University, Department of Health Technology and Informatics, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123) 
700 1 |a Yin, Zengsheng  |u The University of Hong Kong, Department of Chemistry, Hong Kong, PR China (GRID:grid.194645.b) (ISNI:0000 0001 2174 2757); The University of Hong Kong, Laboratory for Synthetic Chemistry and Chemical Biology Limited, Hong Kong, PR China (GRID:grid.194645.b) (ISNI:0000 0001 2174 2757) 
700 1 |a Leung, Howard Ho-Wai  |u The Chinese University of Hong Kong, Department of Anatomical and Cellular Pathology, Hong Kong, PR China (GRID:grid.10784.3a) (ISNI:0000 0004 1937 0482) 
700 1 |a Ma, Xiyang  |u The Hong Kong Polytechnic University, Department of Biomedical Engineering, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123) 
700 1 |a Chau, Mary P.  |u The Hong Kong Polytechnic University, Department of Applied Biology and Chemical Technology, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); The Hong Kong Polytechnic University, State Key Laboratory of Chemical Biology and Drug Discovery, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123) 
700 1 |a Leung, Franco King-Chi  |u The Hong Kong Polytechnic University, Department of Applied Biology and Chemical Technology, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); The Hong Kong Polytechnic University, State Key Laboratory of Chemical Biology and Drug Discovery, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); Hong Kong Science Park, Centre for Eye and Vision Research, Hong Kong, PR China (GRID:grid.16890.36) 
700 1 |a Lui, Ying-Ying  |u The Hong Kong Polytechnic University, Department of Applied Biology and Chemical Technology, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); The Hong Kong Polytechnic University, State Key Laboratory of Chemical Biology and Drug Discovery, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); Hong Kong Science Park, Centre for Eye and Vision Research, Hong Kong, PR China (GRID:grid.16890.36) 
700 1 |a Au, Shannon Wing-Ngor  |u The Chinese University of Hong Kong, School of Life Sciences, Hong Kong, PR China (GRID:grid.10784.3a) (ISNI:0000 0004 1937 0482) 
700 1 |a Sun, Kailei  |u The Chinese University of Hong Kong, School of Life Sciences, Hong Kong, PR China (GRID:grid.10784.3a) (ISNI:0000 0004 1937 0482) 
700 1 |a Mok, Chin Yu  |u The Chinese University of Hong Kong, School of Life Sciences, Hong Kong, PR China (GRID:grid.10784.3a) (ISNI:0000 0004 1937 0482) 
700 1 |a Wang, Fang  |u University of Macau, Avenida da Universidade, Taip, Faculty of Health Sciences, Macau SAR, PR China (GRID:grid.437123.0) (ISNI:0000 0004 1794 8068) 
700 1 |a Ma, Cong  |u The Hong Kong Polytechnic University, Department of Applied Biology and Chemical Technology, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); The Hong Kong Polytechnic University, State Key Laboratory of Chemical Biology and Drug Discovery, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123) 
700 1 |a Ho, Yu-Hin  |u The University of Hong Kong, Department of Chemistry, Hong Kong, PR China (GRID:grid.194645.b) (ISNI:0000 0001 2174 2757); The University of Hong Kong, Laboratory for Synthetic Chemistry and Chemical Biology Limited, Hong Kong, PR China (GRID:grid.194645.b) (ISNI:0000 0001 2174 2757) 
700 1 |a Ye, Xiang-Yang  |u Hangzhou Normal University, School of Pharmacy, Hangzhou, PR China (GRID:grid.410595.c) (ISNI:0000 0001 2230 9154); Hangzhou Normal University, Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Hangzhou, PR China (GRID:grid.410595.c) (ISNI:0000 0001 2230 9154); Hangzhou Normal University, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Hangzhou, PR China (GRID:grid.410595.c) (ISNI:0000 0001 2230 9154); Hangzhou Normal University, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou, PR China (GRID:grid.410595.c) (ISNI:0000 0001 2230 9154) 
700 1 |a Yeung, Man Lung  |u The University of Hong Kong, Department of Microbiology, Hong Kong, PR China (GRID:grid.194645.b) (ISNI:0000 0001 2174 2757) 
700 1 |a Zhang, Yajing  |u The Hong Kong Polytechnic University, Department of Applied Biology and Chemical Technology, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); The Hong Kong Polytechnic University, State Key Laboratory of Chemical Biology and Drug Discovery, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123) 
700 1 |a Zhao, Yan Xiang  |u The Hong Kong Polytechnic University, Department of Applied Biology and Chemical Technology, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); The Hong Kong Polytechnic University, State Key Laboratory of Chemical Biology and Drug Discovery, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123) 
700 1 |a Liu, Jiang  |u The Hong Kong Polytechnic University, Department of Applied Biology and Chemical Technology, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); The Hong Kong Polytechnic University, State Key Laboratory of Chemical Biology and Drug Discovery, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123) 
700 1 |a Wong, Ka-Hing  |u The Hong Kong Polytechnic University, Department of Food Science and Nutrition, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); The Hong Kong Polytechnic University, Research Institute for Future Food, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123) 
700 1 |a Chow, Larry M. C.  |u The Hong Kong Polytechnic University, Department of Applied Biology and Chemical Technology, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); The Hong Kong Polytechnic University, State Key Laboratory of Chemical Biology and Drug Discovery, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123) 
700 1 |a Li, Xiang David  |u The University of Hong Kong, Department of Chemistry, Hong Kong, PR China (GRID:grid.194645.b) (ISNI:0000 0001 2174 2757); The University of Hong Kong, Laboratory for Synthetic Chemistry and Chemical Biology Limited, Hong Kong, PR China (GRID:grid.194645.b) (ISNI:0000 0001 2174 2757) 
700 1 |a Tse, Gary M.  |u The Chinese University of Hong Kong, Department of Anatomical and Cellular Pathology, Hong Kong, PR China (GRID:grid.10784.3a) (ISNI:0000 0004 1937 0482) 
700 1 |a Wong, Man-Kin  |u The Hong Kong Polytechnic University, State Key Laboratory of Chemical Biology and Drug Discovery, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); The Hong Kong Polytechnic University, Department of Food Science and Nutrition, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); Hong Kong Science Park, Centre for Eye and Vision Research, Hong Kong, PR China (GRID:grid.16890.36) 
700 1 |a Shen, Xiao  |u Ltd, Canton Biologics Co., Guangzhou, PR China (GRID:grid.454193.e) (ISNI:0000 0004 1789 3597) 
700 1 |a Chiu, Pauline  |u The University of Hong Kong, Department of Chemistry, Hong Kong, PR China (GRID:grid.194645.b) (ISNI:0000 0001 2174 2757); The University of Hong Kong, Laboratory for Synthetic Chemistry and Chemical Biology Limited, Hong Kong, PR China (GRID:grid.194645.b) (ISNI:0000 0001 2174 2757) 
700 1 |a Ko, Ben C. B.  |u The Hong Kong Polytechnic University, Department of Applied Biology and Chemical Technology, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123); The Hong Kong Polytechnic University, State Key Laboratory of Chemical Biology and Drug Discovery, Hong Kong, PR China (GRID:grid.16890.36) (ISNI:0000 0004 1764 6123) 
773 0 |t Nature Communications  |g vol. 16, no. 1 (2025), p. 6308 
786 0 |d ProQuest  |t Health & Medical Collection 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/3228184762/abstract/embedded/L8HZQI7Z43R0LA5T?source=fedsrch 
856 4 0 |3 Full Text  |u https://www.proquest.com/docview/3228184762/fulltext/embedded/L8HZQI7Z43R0LA5T?source=fedsrch 
856 4 0 |3 Full Text - PDF  |u https://www.proquest.com/docview/3228184762/fulltextPDF/embedded/L8HZQI7Z43R0LA5T?source=fedsrch