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RIPTACs: A groundbreaking approach to drug discovery

Zonghui Ma1, Andrew A Bolinger1, Jia Zhou1

  • 1Chemical Biology Program, Department of Pharmacology and Toxicology, University of Texas Medical Branch (UTMB), Galveston, TX 77555, USA.

Drug Discovery Today
|September 21, 2023
PubMed

Insights

Regulated induced proximity targeting chimeras (RIPTACs) offer a novel approach to cancer therapy by selectively eliminating cancer cells. This groundbreaking strategy targets cancer-specific proteins to disrupt essential cell functions, leading to cancer cell death.

Area of Science:

  • Drug discovery and development
  • Molecular oncology
  • Biotechnology

Background:

  • Regulated induced proximity targeting chimeras (RIPTACs) are emerging heterobifunctional molecules.
  • RIPTACs selectively target cancer cells by forming complexes with cancer-specific target proteins (TPs) and essential effector proteins (EPs).

Purpose of the Study:

  • To review the discovery and recent advancements in RIPTAC technology.
  • To discuss the opportunities and challenges associated with RIPTAC-based cancer therapies.
  • To explore future perspectives in the field of RIPTACs.

Main Methods:

  • This review summarizes existing literature on RIPTACs.
  • It analyzes the mechanism of action for RIPTACs in cancer cell elimination.
  • The review discusses the potential for targeting a broad range of cancer types.

Main Results:

  • RIPTACs demonstrate a promising strategy for cancer cell-specific elimination.
  • The mechanism involves targeted disruption of effector proteins essential for cell survival.
  • TPs do not require a direct link to disease progression, expanding therapeutic targets.

Conclusions:

  • RIPTACs represent a groundbreaking approach in cancer drug discovery.
  • This strategy offers a method for selective cancer cell killing with minimal harm to healthy cells.
  • Further research and development hold significant promise for RIPTACs in oncology.
Keywords:
RIPTACsbifunctional moleculescancer therapyeffector protein (EP)protein–protein interactions (PPIs)target protein (TP)ternary complex

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