Journal of Functional Foods (Feb 2024)

Tilapia (Oreochromis niloticus) oligopeptide TBP-1 inhibits hepatocellular carcinoma metastasis by suppressing inflammation and epithelial-mesenchymal transition

  • Haiyan Zheng,
  • Yi Liu,
  • Liyuan Lin,
  • Yuanlin He,
  • Kaien Zhang,
  • MinQi Chen,
  • Pengzhi Hong,
  • Chunxia Zhou,
  • Zhong-Ji Qian

Journal volume & issue
Vol. 113
p. 106020

Abstract

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Hepatocellular carcinoma (HCC) is one of the deadliest forms of cancer, but the drugs currently used for its treatment are less than ideal. Tilapia oligopeptides have a wide range of biological activities and are potential sources of new drugs. In this study, the role and mechanism of TBP-1 (Ser-Val-Val-Ala-Ile), an oligopeptide from tilapia, on inflammation and endothelial-mesenchymal transition (EMT) in HCC was investigated using the LPS-induced RAW264.7 inflammation model and the transforming growth factor (TGF)-β1-induced HCC EMT model. The results showed that TBP-1 could effectively inhibit inflammatory response. Moreover, in TGF-β1-induced human hepatocellular carcinoma (HepG2) cells, 100 μM TBP-1 significantly reduced the secretion of N-cadherin (54.2 ± 10.6 %), Vimentin (47.0 ± 9.4 %) and Snail (76.0 ± 9.0 %), increased the secretion of E-cadherin (56.0 ± 16.3 %), inhibited cell metastasis, and participated in the regulatory mechanisms of TGF-β/Smad and non-TGF-β/Smad mediated EMT. TBP-1 may be a potentially valuable inhibitor of HCC.

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