Journal
FRONTIERS IN ONCOLOGY
Volume 10, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fonc.2020.623679
Keywords
MYCN; Super-enhancer (SE); cofactor; cancer; pediatric cancer; MYC; transcription factor
Categories
Funding
- Center for Cancer Research, the Intramural Research Program of the National Cancer Institute
- European Union FESR FSE, PON Ricerca e Innovazione 2014-2020
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The deregulation of the MYC family of oncogenes, particularly c-MYC, is associated with poor prognosis in cancer. While most functional studies have focused on c-MYC, efforts are being made to target MYCN and develop strategies to suppress MYCN transcription and activity. Researchers are exploring ways to indirectly target MYC to achieve anti-tumor effects.
The deregulation of the MYC family of oncogenes, including c-MYC, MYCN and MYCL occurs in many types of cancers, and is frequently associated with a poor prognosis. The majority of functional studies have focused on c-MYC due to its broad expression profile in human cancers. The existence of highly conserved functional domains between MYCN and c-MYC suggests that MYCN participates in similar activities. MYC encodes a basic helix-loop-helix-leucine zipper (bHLH-LZ) transcription factor (TF) whose central oncogenic role in many human cancers makes it a highly desirable therapeutic target. Historically, as a TF, MYC has been regarded as undruggable. Thus, recent efforts focus on investigating methods to indirectly target MYC to achieve anti-tumor effects. This review will primarily summarize the recent progress in understanding the function of MYCN. It will explore efforts at targeting MYCN, including strategies aimed at suppression of MYCN transcription, destabilization of MYCN protein, inhibition of MYCN transcriptional activity, repression of MYCN targets and utilization of MYCN overexpression dependent synthetic lethality.
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