期刊
ISCIENCE
卷 23, 期 12, 页码 -出版社
CELL PRESS
DOI: 10.1016/j.isci.2020.101810
关键词
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资金
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) of the National Institutes of Health (NIH) [DK112921]
- National Center for Advancing Translational Sciences (NCATS) of the NIH [TR002065]
- Washington University Institute of Clinical and Translational Sciences from NCATS of the NIH [UL1TR002345]
- Washington University Diabetes Research Center from the NIDDK of the NIH [P30DK020579]
- Japan Society for the Promotion of Science
- Uehara Memorial Foundation
- Kanae Foundation
Endoplasmic reticulum (ER) stress is known to induce pro-inflammatory response and ultimately leads to cell death. Mesencephalic astrocyte-derived neurotrophic factor (MANF) is an ER-localized protein whose expression and secretion is induced by ER stress and a crucial survival factor. However, the underlying mechanism of how MANF exerts its cytoprotective activity remains unclear due to the lack of knowledge of its receptor. Here we show that Neuroplastin (NPTN) is such a receptor for MANF. Biochemical analysis shows the physiological interaction between MANF and NPTN on the cell surface. Binding of MANF to NPTN mitigates the inflammatory response and apoptosis via suppression of NF-kappa beta signaling. Our results demonstrate that NPTN is a cell surface receptor for MANF, which modulates inflammatory responses and cell death, and that the MANF-NPTN survival signaling described here provides potential therapeutic targets for the treatment of ER stress-related disorders, including diabetes mellitus, neurodegeneration, retinal degeneration, and Wolfram syndrome.
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