Crosstalk Between Cis-Regulatory Elements and Metabolism Reprogramming in Hepatocellular Carcinoma

Area of Science:

• Oncology
• Epigenetics
• Metabolic pathways

Background:

• Hepatocellular carcinoma (HCC) is a major global cancer, characterized by metabolic reprogramming and epigenetic changes.
• The interplay between cis-regulatory elements (CREs) and metabolic adaptation in HCC is not well understood.

Purpose of the Study:

• To review and integrate evidence on how CREs, including promoters, enhancers, and super-enhancers, drive metabolic reprogramming in HCC.
• To elucidate the mechanisms linking CREs to oncogenic and metabolic signals in HCC progression.

Main Methods:

• Literature review and synthesis of current research on CREs, epigenetics, and metabolism in HCC.
• Analysis of how CREs regulate key metabolic genes and pathways involved in cancer growth.

Main Results:

• Enhancers and super-enhancers activate critical metabolic genes in glycolysis, lipogenesis, glutaminolysis, and nucleotide synthesis.
• Metabolic intermediates feedback to epigenetic modifiers, creating loops that reinforce malignant phenotypes.
• Aberrant CREs function as "metabolic switches" that sustain HCC growth.

Conclusions:

• CREs play a crucial role in mediating metabolic adaptation and driving HCC progression.
• Targeting oncogenic CREs, particularly super-enhancers, presents a novel therapeutic strategy for HCC.
• Disrupting CRE-mediated metabolic vulnerabilities offers a promising avenue for precision HCC therapy.