期刊
BIOCHIMICA ET BIOPHYSICA ACTA-REVIEWS ON CANCER
卷 1874, 期 2, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.bbcan.2020.188410
关键词
MYC; gene expression; G-quadruplex (G4); G4-binding agents; peptides; cancer therapies
资金
- Fundamental Research Funds for the Central Universities [2572017BA10]
- National Natural Science Foundation of China [81802798, 81872293, 81672795]
- China Postdoctoral Science Foundation [2018M631897]
- Heilongjiang Postdoctoral Fund [LBH-Z16005]
Overexpression of the MYC oncogene is a molecular hallmark of both cancer initiation and progression. Targeting MYC is a logical and effective cancer therapeutic strategy. A special DNA secondary structure, the G-quadruplex (G4), is formed within the nuclease hypersensitivity element III1 (NHE III1) region, located upstream of the MYC gene's P1 promoter that drives the majority of its transcription. Targeting such G4 structures has been a focus of anticancer therapies in recent decades. Thus, a comprehensive review of the MYC G4 structure and its role as a potential therapeutic target is timely. In this review, we first outline the discovery of the MYC G4 structure and evidence of its formation in vitro and in cells. Then, we describe the functional role of G4 in regulating MYC gene expression. We also summarize three types of MYC G4-interacting proteins that can promote, stabilize and unwind G4 structures. Finally, we discuss G4-binding molecules and the anticancer activities of G4-stabilizing ligands, including small molecular compounds and peptides, and assess their potential as novel anticancer therapeutics.
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