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Authors Lu T, Sun L, Wang Z, Zhang Y, He Z, Xu C
Received 24 December 2018
Accepted for publication 25 March 2019
Published 2 May 2019 Volume 2019:12 Pages 3339—3347
DOI https://doi.org/10.2147/OTT.S199369
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Ms Rachel Predeepa
Peer reviewer comments 4
Editor who approved publication: Prof. Dr. Geoffrey Pietersz
Objective: In the
present study, we aimed to investigate the potential role of fatty acid
synthase (FASN) in the development and progression of colorectal cancer (CRC).
Materials and methods: FASN
levels were analyzed in human CRC tissues and adjacent normal tissues by
Western blots and immunohistochemistry. Potential roles of FASN in regulating
CRC cell proliferation and migration were examined by genetic manipulation in
vitro. The molecular signaling was determined to understand the mechanisms of
observed FASN effects.
Results: FASN
level was upregulated in CRC tissues and high expression of FASN was
significantly associated with lymph node metastasis, TNM (Tumor, Node,
Metastases) stage and poor prognosis in patients with CRC. Knockdown of FASN
attenuated CRC cell proliferation and migration in vitro while FASN
overexpression possessed the opposite effects. FASN regulated AMP-activated
protein kinase (AMPK)/mechanistic target of rapamycin (mTOR) pathway in CRC
cells.
Conclusion: FASN
enhanced CRC cell proliferation and metastasis potentially through AMPK/mTOR
pathway, indicating that FASN/AMPK/mTOR signaling axis may serve as a potential
target for the treatment of CRC.
Keywords: FASN,
proliferation, metastasis, AMPK/mTOR pathway, colorectal cancer