Related Experiment Video

Updated: Feb 12, 2026

Incorporating Target Protein Structure Flexibility and Dynamics in Computational Drug Discovery Using Ensemble-Based Docking Analysis
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Incorporating Target Protein Structure Flexibility and Dynamics in Computational Drug Discovery Using Ensemble-Based Docking Analysis

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Structure-guided discovery strategies for Trop2-targeted small molecule inhibitors

Dong Oh Moon1

  • 1Department of Biology Education, Daegu University, 201, Daegudae-ro, Gyeongsan-si, Gyeongsangbuk-do 38453, Republic of Korea.

Bulletin Du Cancer
|February 10, 2026
PubMed

Insights

Small molecules targeting Trophoblast cell surface antigen 2 (Trop2) show promise for cancer therapy. Structure-based strategies and advanced screening methods are key to developing next-generation Trop2 inhibitors.

Area of Science:

  • Oncology
  • Drug Discovery
  • Molecular Biology

Background:

  • Trophoblast cell surface antigen 2 (Trop2) is overexpressed in epithelial cancers, driving tumor growth and resistance.
  • Trop2-targeting antibody-drug conjugates (ADCs) show success but have limitations like toxicity and resistance.

Purpose of the Study:

  • To review recent advances in small molecule inhibitors targeting Trop2.
  • To focus on structure-based strategies for Trop2 inhibitor development.
  • To explore novel therapeutic modalities beyond ADCs.

Main Methods:

  • Summarizing Trop2's oncogenic signaling mechanisms (e.g., intramembrane proteolysis, β-catenin stabilization).
  • Identifying key structural domains (TY-loop, ND-CD ridge, phosphorylation sites) for small molecule binding.
  • Examining natural compounds (e.g., Bruceine D) and computational/experimental workflows (docking, CETSA, AI screening).

Main Results:

  • Key structural domains of Trop2 are identified as potential binding pockets for small molecule inhibitors.
  • Bruceine D serves as a case study for a natural Trop2-ICD modulator.
  • Integrated computational and experimental approaches facilitate rational drug design.

Conclusions:

  • Small molecule inhibitors represent a promising alternative to ADCs for Trop2-targeted cancer therapy.
  • Structure-based design, fragment-based discovery, and AI-guided screening are crucial for optimizing Trop2 inhibitors.
  • These strategies offer a framework for developing next-generation Trop2 therapeutics.
Keywords:
Small-molecule inhibitorsTrop2β-catenin signaling

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