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Yeast As a Chassis for Developing Functional Assays to Study Human P53
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Computational approach to target USP28 for regulating Myc.

Debangana Chakravorty1, Abhirupa Ghosh1, Sudipto Saha1

  • 1Division of Bioinformatics, Bose Institute, Kolkata, India.

Computational Biology and Chemistry
|February 7, 2020
PubMed
Summary
This summary is machine-generated.

This study identifies novel small molecule inhibitors targeting USP28 to indirectly modulate Myc expression, offering a potential new strategy for anti-cancer therapy by repurposing existing drugs.

Keywords:
DockingFBXW7MycSmall chemicalsUSP28Ubiquitin

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Area of Science:

  • Oncology
  • Molecular Biology
  • Drug Discovery

Background:

  • Myc is essential for cell proliferation and cancer development.
  • Targeting Myc directly has limitations due to its role in normal cell function.
  • Modulating Myc turnover offers an alternative therapeutic strategy.

Purpose of the Study:

  • To identify small molecules that inhibit USP28, a key regulator of Myc degradation.
  • To explore drug repurposing for novel anti-Myc cancer therapies.
  • To investigate USP28 as a therapeutic target by analyzing its interactions with FBXW7 and Ubiquitin.

Main Methods:

  • Computational high-throughput screening using molecular docking (AutoDock Vina).
  • Identification of potential USP28 inhibitors by screening bioactive small chemicals.
  • Analysis of USP28 binding sites (FBXW7 and Ubiquitin) and comparison with USP25.

Main Results:

  • Top 10 drug candidates predicted to inhibit USP28 binding to FBXW7 and Ubiquitin.
  • Identified specific binding regions on USP28 that differ from its homolog USP25.
  • Explored the anti-cancer potential of the top-scoring drug candidates.

Conclusions:

  • USP28 inhibition represents a promising indirect strategy for modulating Myc in cancer therapy.
  • Drug repurposing of identified inhibitors could lead to novel anti-Myc treatments.
  • This study provides a foundation for developing new anti-cancer drugs targeting Myc regulation.