期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 22, 期 24, 页码 -出版社
MDPI
DOI: 10.3390/ijms222413184
关键词
CERT; ceramide; sphingomyelin; sphingolipid; lipid transfer protein; lipidomics; cancer
资金
- National Health and Medical Research Council, Australia [GNT1162545, GNT2002660]
- NSW Health, Australia [G205977]
- Future Leader Fellowship by Centenary Institute of Cancer Medicine and Cell Biology, Australia
Sphingolipids play essential roles in constructing cellular membranes and regulating cellular functions, with ceramide and sphingomyelin as key components; Ceramide transfer protein (CERT) controls the balance of these two substances within cells, crucial for cancer cell survival and functioning.
Sphingolipids are a class of essential lipids implicated in constructing cellular membranes and regulating nearly all cellular functions. Sphingolipid metabolic network is centered with the ceramide-sphingomyelin axis. Ceramide is well-recognized as a pro-apoptotic signal; while sphingomyelin, as the most abundant type of sphingolipids, is required for cell growth. Therefore, the balance between these two sphingolipids can be critical for cancer cell survival and functioning. Ceramide transfer protein (CERT) dictates the ratio of ceramide to sphingomyelin within the cell. It is the only lipid transfer protein that specifically delivers ceramide from the endoplasmic reticulum to the Golgi apparatus, where ceramide serves as the substrate for sphingomyelin synthesis. In the past two decades, an increasing body of evidence has suggested a critical role of CERT in cancer, but much more intensive efforts are required to draw a definite conclusion. Herein, we review all research findings of CERT, focusing on its molecular structure, cellular functions and implications in cancer. This comprehensive review of CERT will help to better understand the molecular mechanism of cancer and inspire to identify novel druggable targets.
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