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Published on: May 14, 2016
Cancer therapeutics: targeting the dark side of Myc
Romina Ponzielli1, Sigal Katz, Dalia Barsyte-Lovejoy
1Ontario Cancer Institute/Princess Margaret Hospital, Department of Medical Biophysics, University of Toronto, 610 University Avenue, Toronto, Ont., Canada M5G 2M9.
Abstract:
The potent Myc oncoprotein plays a pivotal role as a regulator of tumorigenesis in numerous human cancers of diverse origin. Experimental evidence shows that inhibiting Myc significantly halts tumour cell growth and proliferation. This review summarises recent progress in understanding the function of Myc as a transcription factor, with emphasis on key protein interactions and target gene regulation. In addition, major advances in drug development aimed at eliminating Myc are described, including antisense and triple helix forming oligonucleotides, porphyrins and siRNA. Future anti-Myc strategies are also discussed that inhibit Myc at the level of expression and/or function. Targeting the dark side of Myc with novel therapeutic agents promises to have a profound impact in combating cancer.
Insights
The Myc oncoprotein drives cancer by regulating gene expression. Inhibiting Myc, a key factor in tumorigenesis, offers a promising therapeutic strategy for various cancers.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Genetics
Background:
- The Myc oncoprotein is a critical regulator of tumorigenesis in many human cancers.
- Inhibition of Myc has been experimentally shown to halt tumor cell growth and proliferation.
Purpose of the Study:
- To review recent advances in understanding Myc's function as a transcription factor.
- To summarize progress in drug development targeting Myc.
- To discuss future anti-Myc therapeutic strategies.
Main Methods:
- Review of experimental evidence on Myc function and inhibition.
- Analysis of key protein interactions and target gene regulation by Myc.
- Survey of current and emerging anti-Myc drug development (oligonucleotides, porphyrins, siRNA).
Main Results:
- Myc's role as a transcription factor in cancer is complex, involving specific protein interactions and target gene regulation.
- Various drug development strategies are emerging to inhibit Myc's expression and/or function.
- Targeting Myc presents a promising avenue for novel cancer therapies.
Conclusions:
- Understanding Myc's intricate functions is crucial for developing effective cancer treatments.
- Novel therapeutic agents targeting Myc have the potential to significantly impact cancer therapy.
- Future strategies will focus on inhibiting Myc at both expression and functional levels.
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