Endoplasmic reticulum stress and lipids in health and diseases

The endoplasmic reticulum (ER) is a complex and dynamic organelle that regulates many cellular pathways, including protein synthesis, protein quality control, and lipid synthesis. When one or multiple ER roles are dysregulated and saturated, the ER enters a stress state, which, in turn, activates th...

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Main Authors: Celik, Cenk, Lee, Stella Yue Ting, Yap, Wei Sheng, Thibault, Guillaume
Other Authors: School of Biological Sciences
Format: Journal Article
Language:English
Published: 2023
Subjects:
Online Access:https://hdl.handle.net/10356/164761
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author Celik, Cenk
Lee, Stella Yue Ting
Yap, Wei Sheng
Thibault, Guillaume
author2 School of Biological Sciences
author_facet School of Biological Sciences
Celik, Cenk
Lee, Stella Yue Ting
Yap, Wei Sheng
Thibault, Guillaume
author_sort Celik, Cenk
collection NTU
description The endoplasmic reticulum (ER) is a complex and dynamic organelle that regulates many cellular pathways, including protein synthesis, protein quality control, and lipid synthesis. When one or multiple ER roles are dysregulated and saturated, the ER enters a stress state, which, in turn, activates the highly conserved unfolded protein response (UPR). By sensing the accumulation of unfolded proteins or lipid bilayer stress (LBS) at the ER, the UPR triggers pathways to restore ER homeostasis and eventually induces apoptosis if the stress remains unresolved. In recent years, it has emerged that the UPR works intimately with other cellular pathways to maintain lipid homeostasis at the ER, and so does at cellular levels. Lipid distribution, along with lipid anabolism and catabolism, are tightly regulated, in part, by the ER. Dysfunctional and overwhelmed lipid-related pathways, independently or in combination with ER stress, can have reciprocal effects on other cellular functions, contributing to the development of diseases. In this review, we summarize the current understanding of the UPR in response to proteotoxic stress and LBS and the breadth of the functions mitigated by the UPR in different tissues and in the context of diseases.
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spelling ntu-10356/1647612023-02-13T07:52:12Z Endoplasmic reticulum stress and lipids in health and diseases Celik, Cenk Lee, Stella Yue Ting Yap, Wei Sheng Thibault, Guillaume School of Biological Sciences Science::Biological sciences Cancer Diabetes The endoplasmic reticulum (ER) is a complex and dynamic organelle that regulates many cellular pathways, including protein synthesis, protein quality control, and lipid synthesis. When one or multiple ER roles are dysregulated and saturated, the ER enters a stress state, which, in turn, activates the highly conserved unfolded protein response (UPR). By sensing the accumulation of unfolded proteins or lipid bilayer stress (LBS) at the ER, the UPR triggers pathways to restore ER homeostasis and eventually induces apoptosis if the stress remains unresolved. In recent years, it has emerged that the UPR works intimately with other cellular pathways to maintain lipid homeostasis at the ER, and so does at cellular levels. Lipid distribution, along with lipid anabolism and catabolism, are tightly regulated, in part, by the ER. Dysfunctional and overwhelmed lipid-related pathways, independently or in combination with ER stress, can have reciprocal effects on other cellular functions, contributing to the development of diseases. In this review, we summarize the current understanding of the UPR in response to proteotoxic stress and LBS and the breadth of the functions mitigated by the UPR in different tissues and in the context of diseases. Monetary Authority of Singapore National Medical Research Council (NMRC) National Research Foundation (NRF) This work was supported by funds from the National Medical Research Council Open Fund (MOH-000566), the National Research Foundation, Singapore, under its NRF-NSFC joint research grant call (NRF2018NRFNSFC003SB-006), and the NTU Research Scholarship to S.Y.T.L. (predoctoral fellowship). 2023-02-13T07:52:12Z 2023-02-13T07:52:12Z 2023 Journal Article Celik, C., Lee, S. Y. T., Yap, W. S. & Thibault, G. (2023). Endoplasmic reticulum stress and lipids in health and diseases. Progress in Lipid Research, 89, 101198-. https://dx.doi.org/10.1016/j.plipres.2022.101198 0163-7827 https://hdl.handle.net/10356/164761 10.1016/j.plipres.2022.101198 36379317 2-s2.0-85141968441 89 101198 en MOH-000566 NRF2018NRFNSFC003SB-006 Progress in Lipid Research © 2022 Elsevier Ltd. All rights reserved.
spellingShingle Science::Biological sciences
Cancer
Diabetes
Celik, Cenk
Lee, Stella Yue Ting
Yap, Wei Sheng
Thibault, Guillaume
Endoplasmic reticulum stress and lipids in health and diseases
title Endoplasmic reticulum stress and lipids in health and diseases
title_full Endoplasmic reticulum stress and lipids in health and diseases
title_fullStr Endoplasmic reticulum stress and lipids in health and diseases
title_full_unstemmed Endoplasmic reticulum stress and lipids in health and diseases
title_short Endoplasmic reticulum stress and lipids in health and diseases
title_sort endoplasmic reticulum stress and lipids in health and diseases
topic Science::Biological sciences
Cancer
Diabetes
url https://hdl.handle.net/10356/164761
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