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Structural Protein Function01:56

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A Protocol for Computer-Based Protein Structure and Function Prediction
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Structural Based Screening of Antiandrogen Targeting Activation Function-2 Binding Site.

Yangguang Liu1,2, Meng Wu1,2, Tianqi Wang2

  • 1Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua, China.

Frontiers in Pharmacology
|December 18, 2018
PubMed
Summary

Researchers discovered a new antiandrogen, IMB-A6, that targets the androgen receptor (AR) activation function-2 site. This novel compound effectively inhibits both wild-type and mutated ARs, offering a promising strategy against resistant prostate cancer.

Keywords:
activation function-2androgen receptorantiandrogencastration-resistant prostate cancerstructural based drug design

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Area of Science:

  • Oncology
  • Molecular Biology
  • Drug Discovery

Background:

  • Androgen receptor (AR) is crucial in prostate cancer (PCa) development and progression.
  • Current antiandrogen therapies often lead to resistance through mutations in the AR hormone binding pocket (HBP).
  • There is a significant need for novel antiandrogens that overcome mutation-based resistance.

Purpose of the Study:

  • To discover novel antiandrogens that circumvent mutation-based resistance in prostate cancer.
  • To identify compounds targeting the AR activation function-2 (AF2) site.

Main Methods:

  • Analysis of AR structures with ligands bound to the AF2 site.
  • Development of a combined pharmacophore model.
  • In silico screening and subsequent biological evaluation of lead compounds.

Main Results:

  • Discovery of a novel lead compound, IMB-A6.
  • IMB-A6 binds to the AF2 site of the androgen receptor.
  • IMB-A6 inhibits the activity of both wild-type (WT) and resistance-mutated ARs.

Conclusions:

  • Structure-based drug design is an effective strategy for discovering new antiandrogens.
  • IMB-A6 represents a new class of small molecular antiandrogens.
  • This discovery provides potential new treatment agents against prostate cancer.