The YAP-TEAD4 inhibitor M511-0965 suppresses triple-negative breast cancer progression by downregulating TGFB2

Mengxing Cheng1, Xinyu Li1, Na Song1

  • 1Department of Pharmacology (State Key Laboratory of Frigid Zone Cardiovascular Diseases, State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin 150086, China.

Insights

Researchers identified a novel small-molecule inhibitor targeting TEAD4 to treat triple-negative breast cancer (TNBC). This YAP/TEAD4 inhibitor offers a promising, low-toxicity therapeutic strategy for TNBC, addressing unmet clinical needs.

Area of Science:

  • Oncology
  • Molecular Biology
  • Drug Discovery

Background:

  • Triple-negative breast cancer (TNBC) lacks targeted therapies, necessitating novel, low-toxicity treatments.
  • The Hippo pathway regulates organ development; its effector TEAD is implicated in various cancers.
  • TEAD4 is highly expressed in TNBC, influencing its biological functions and presenting a therapeutic target.

Purpose of the Study:

  • To identify safe and low-toxicity small-molecule inhibitors targeting TEAD4 for TNBC treatment.
  • To investigate the role of TEAD4 in TNBC progression and its potential as a therapeutic target.

Main Methods:

  • Bioinformatics and molecular biology experiments to analyze TEAD4 expression in TNBC.
  • Structure-based virtual screening using molecular docking to identify inhibitors of the YAP/TEAD4 complex.
  • In vitro molecular biology and cellular functional assays to validate inhibitor efficacy.

Main Results:

  • TEAD4 was found to be highly expressed in TNBC, correlating with tumor biological functions.
  • A novel small-molecule inhibitor targeting the YAP/TEAD4 interaction was identified through virtual screening.
  • The inhibitor demonstrated antitumor effects by disrupting the YAP/TEAD4 interaction in cellular assays.

Conclusions:

  • TEAD4 is a crucial therapeutic target in triple-negative breast cancer.
  • The identified small-molecule inhibitor targeting YAP/TEAD4 interaction shows preclinical promise for TNBC therapy.
  • This study provides a foundation for developing novel, low-toxicity targeted therapies for TNBC.

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