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FARSB Facilitates Hepatocellular Carcinoma Progression by Activating the mTORC1 Signaling Pathway.
- Source :
-
International journal of molecular sciences [Int J Mol Sci] 2023 Nov 24; Vol. 24 (23). Date of Electronic Publication: 2023 Nov 24. - Publication Year :
- 2023
-
Abstract
- Hepatocellular carcinoma (HCC) is a common malignant tumor with high mortality. Human phenylalanine tRNA synthetase (PheRS) comprises two α catalytic subunits encoded by the FARSA gene and two β regulatory subunits encoded by the FARSB gene. FARSB is a potential oncogene, but no experimental data show the relationship between FARSB and HCC progression. We found that the high expression of FARSB in liver cancer is closely related to patients' low survival and poor prognosis. In liver cancer cells, the mRNA and protein expression levels of FARSB are increased and promote cell proliferation and migration. Mechanistically, FARSB activates the mTOR complex 1 (mTORC1) signaling pathway by binding to the component Raptor of the mTORC1 complex to play a role in promoting cancer. In addition, we found that FARSB can inhibit erastin-induced ferroptosis by regulating the mTOR signaling pathway, which may be another mechanism by which FARSB promotes HCC progression. In summary, FARSB promotes HCC progression and is associated with the poor prognosis of patients. FARSB is expected to be a biomarker for early screening and treatment of HCC.
- Subjects :
- Humans
Signal Transduction
TOR Serine-Threonine Kinases genetics
TOR Serine-Threonine Kinases metabolism
Mechanistic Target of Rapamycin Complex 1 genetics
Mechanistic Target of Rapamycin Complex 1 metabolism
Cell Proliferation genetics
Cell Line, Tumor
Carcinoma, Hepatocellular metabolism
Liver Neoplasms metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 1422-0067
- Volume :
- 24
- Issue :
- 23
- Database :
- MEDLINE
- Journal :
- International journal of molecular sciences
- Publication Type :
- Academic Journal
- Accession number :
- 38069034
- Full Text :
- https://doi.org/10.3390/ijms242316709