Inhibition of dipeptidyl peptidase IV prevents high fat diet-induced liver cancer angiogenesis by downregulating chemokine ligand 2
Obesity is a major risk factor for hepatocellular carcinoma (HCC) and is typically accompanied by higher levels of serum dipeptidyl peptidase 4 (DPP4). However, the role of DPP4 in obesity-promoted HCC is unclear. Here, we found that consumption of a high-fat diet (HFD) promoted HCC cell proliferation and metastasis and led to poor survival in a carcinogen-induced model of HCC in rats. Notably, genetic ablation of DPP4 or treatment with a DPP4 inhibitor (vildagliptin) prevented HFD-induced HCC. Moreover, HFD-induced DPP4 activity facilitated angiogenesis and cancer cell metastasis in vitro and in vivo, and vildagliptin prevented tumor progression by mediating the pro-angiogenic role of chemokine ligand 2 (CCL2).
Source: Cancer Letters - Category: Cancer & Oncology Authors: Chen-Jie Qin, Ling-Hao Zhao, Xu Zhou, Hui-Lu Zhang, Wen Wen, Liang Tang, Min Zeng, Ming-Da Wang, Gong-Bo Fu, Shuai Huang, Wei-Jian Huang, Yuan Yang, Zhi-Jun Bao, Wei-Ping Zhou, Hong-Yang Wang, He-Xin Yan Tags: Original Articles Source Type: research
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