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- Title
Lipid Metabolic Reprogramming in Hepatocellular Carcinoma.
- Authors
Nakagawa, Hayato; Hayata, Yuki; Kawamura, Satoshi; Yamada, Tomoharu; Fujiwara, Naoto; Koike, Kazuhiko
- Abstract
Metabolic reprogramming for adaptation to the local environment has been recognized as a hallmark of cancer. Although alterations in fatty acid (FA) metabolism in cancer cells have received less attention compared to other metabolic alterations such as glucose or glutamine metabolism, recent studies have uncovered the importance of lipid metabolic reprogramming in carcinogenesis. Obesity and nonalcoholic steatohepatitis (NASH) are well-known risk factors of hepatocellular carcinoma (HCC), and individuals with these conditions exhibit an increased intake of dietary FAs accompanied by enhanced lipolysis of visceral adipose tissue due to insulin resistance, resulting in enormous exogenous FA supplies to hepatocytes via the portal vein and lymph vessels. This "lipid-rich condition" is highly characteristic of obesity- and NASH-driven HCC. Although the way in which HCC cells adapt to such a condition and exploit it to aid their progression is not understood, we recently obtained new insights into this mechanism through lipid metabolic reprogramming. In addition, accumulating evidence supports the importance of lipid metabolic reprogramming in various situations of hepatocarcinogenesis. Thus, in this review, we discuss the latest findings regarding the role of FA metabolism pathways in hepatocarcinogenesis, focusing on obesity- and NASH-driven lipid metabolic reprogramming.
- Subjects
LIPID metabolism; HEPATOCELLULAR carcinoma; OBESITY complications; ADIPOSE tissues; CELL lines; FATTY liver; INGESTION; INSULIN resistance; LIVER cells; PORTAL vein; DISEASE complications; DISEASE risk factors
- Publication
Cancers, 2018, Vol 10, Issue 11, p447
- ISSN
2072-6694
- Publication type
Article
- DOI
10.3390/cancers10110447