Hypoxia upregulates hepatic angiopoietin-2 transcription to promote the progression of hepatocellular carcinoma

Targeting hypoxia and angiogenesis in hepatocellular carcinoma: New insights and therapeutic strategies

In this manuscript we comment on the article by Yang et al published recently, focusing on how hepatic angiopoietin-2 (Ang-2) transcription promote the progression of hepatocellular carcinoma (HCC). HCC is one of the most common and lethal malignancies worldwide, especially in regions with high hepatitis B virus infection rates. Ang-2 is a key mediator of angiogenesis and plays a significant role in the progression of chronic liver diseases towards HCC, particularly in the hypoxic microenvironment. This paper reviews the dynamic expression of Ang-2 in hepatocarcinogenesis and its regulation by hypoxia-inducible factor-1α. Furthermore, we discuss Ang-2’s potential as an early monitoring biomarker for metastasis, and the therapeutic prospects of silencing hypoxia-inducible factor-1α to downregulate Ang-2 and suppress epithelial-mesenchymal transition in HCC treatment.