期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 23, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/ijms23031709
关键词
mTORC1; TFEB; GSK-3; GSK-3 beta; autophagy; lysosome; AKT; PKC; ULK1
资金
- Macular Degeneration Research (MDR) program of the BrightFocus Foundation [M2021019N]
- Indiana University School of Optometry New Faculty Development award [MVSE 2335512]
Autophagy is a vital cellular mechanism that ensures cellular maintenance and survival. The GSK-3 signaling pathway regulates autophagy by modulating TFEB and other signaling molecules.
Autophagy is a vital cellular mechanism that benefits cellular maintenance and survival during cell stress. It can eliminate damaged or long-lived organelles and improperly folded proteins to maintain cellular homeostasis, development, and differentiation. Impaired autophagy is associated with several diseases such as cancer, neurodegenerative diseases, and age-related macular degeneration (AMD). Several signaling pathways are associated with the regulation of the autophagy pathway. The glycogen synthase kinase-3 signaling pathway was reported to regulate the autophagy pathway. In this review, we will discuss the mechanisms by which the GSK-3 signaling pathway regulates autophagy. Autophagy and lysosomal function are regulated by transcription factor EB (TFEB). GSK-3 was shown to be involved in the regulation of TFEB nuclear expression in an mTORC1-dependent manner. In addition to mTORC1, GSK-3 beta also regulates TFEB via the protein kinase C (PKC) and the eukaryotic translation initiation factor 4A-3 (eIF4A3) signaling pathways. In addition to TFEB, we will also discuss the mechanisms by which the GSK-3 signaling pathway regulates autophagy by modulating other signaling molecules and autophagy inducers including, mTORC1, AKT and ULK1. In summary, this review provides a comprehensive understanding of the role of the GSK-3 signaling pathway in the regulation of autophagy.
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