Inhibition of FASN suppresses migration, invasion and growth in hepatoma carcinoma cells by deregulating the HIF-1α/IGFBP1 pathway

Gong,Jiaojiao; Shen,Shasha; Yang,Yixuan; Qin,Si; Huang,Lifan; Zhang,Hongmin; Chen,Ling; Chen,Yaqin; Li,Shiying; She,Sha; Yang,Min; Ren,Hong; Hu,Huaidong

doi:10.3892/ijo.2017.3867

Inhibition of FASN suppresses migration, invasion and growth in hepatoma carcinoma cells by deregulating the HIF-1α/IGFBP1 pathway

Authors:
- Jiaojiao Gong
- Shasha Shen
- Yixuan Yang
- Si Qin
- Lifan Huang
- Hongmin Zhang
- Ling Chen
- Yaqin Chen
- Shiying Li
- Sha She
- Min Yang
- Hong Ren
- Huaidong Hu
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Affiliations: Institute for Viral Hepatitis, Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China, Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China, Department of Clinical Nutrition, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
Published online on: February 2, 2017 https://doi.org/10.3892/ijo.2017.3867
Pages: 883-892

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Abstract

Hepatocellular carcinoma is the second most common cause of cancer-related deaths worldwide. Due to a high propensity to metastasize, active angiogenesis and rapid proliferation, recurrence and poor prognosis are major obstacles for treatment and cure of this disease. However, the detailed mechanisms of how fatty acid synthase (FASN) promotes migration, invasion and healing in tumor cells remain unclear. In the present study, the previous results that FASN was expressed higher in cancer samples than in non-cancerous samples, and influenced migration, invasion of hepatoma carcinoma cells, were verified by immunohistochemistry, tissue microarrays, Transwell assay and wound healing assay. The secretory proteins of hepatocellular carcinoma cells with or without FASN knockdown were analyzed using the isobaric tags for relative and absolute quantitation (iTRAQ) method to identify differentially expressed proteins (DEPs). The DEPs were verified by RT-PCR and western blot analysis, and were consistent with the iTRAQ results. Inhibition of FASN can decrease the levels of IGFBP1, and the expression, activity, and ubiquitination of HIF-1α. Inhibition of FASN can suppress migration, invasion and healing of hepatoma carcinoma cells by decreasing HIF-1α, and IGFBP1.

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