Related Experiment Video
Updated: May 8, 2026

Characterize Disease-related Mutants of RAF Family Kinases by Using a Set of Practical and Feasible Methods
Published on: July 17, 2019
Targeting the K-Ras/PDEδ protein-protein interaction: the solution for Ras-driven cancers or just another therapeutic
Brendan Frett1, Yuanxiang Wang, Hong-Yu Li
1Department of Pharmacology & Toxicology, College of Pharmacy, University of Arizona, Tucson, AZ 85721 (USA); BIO5 Oro Valley (BIO5OV), University of Arizona, 1580 E. Hanley Blvd, Oro Valley, AZ 85737 (USA).
Abstract:
The holy grail, finally? After years of unsuccessful attempts at drugging the Ras oncogene, a recent paper by Zimmerman et al. has revealed the possibility of inhibiting Ras signaling on a clinically relevant level by blocking the K-Ras/PDEδ protein-protein interaction. The results, reported in Nature, are highlighted herein with future implications and directions to evaluate the full clinical potential of this research.
Insights
Researchers have identified a novel strategy to inhibit Ras signaling by blocking the K-Ras/PDEδ protein interaction. This breakthrough offers a promising new avenue for cancer therapy development.
Area of Science:
- Oncology
- Molecular Biology
- Drug Discovery
Background:
- Ras oncogenes are implicated in numerous cancers, posing a significant therapeutic challenge.
- Directly targeting Ras proteins has historically proven difficult, limiting treatment options.
Purpose of the Study:
- To explore a novel therapeutic strategy targeting the K-Ras/PDEδ protein-protein interaction.
- To assess the potential for clinically relevant inhibition of Ras signaling.
Main Methods:
- Investigated the K-Ras/PDEδ protein-protein interaction.
- Evaluated methods to block this specific interaction.
Main Results:
- Successfully identified a method to inhibit Ras signaling by targeting the K-Ras/PDEδ interaction.
- Demonstrated potential for clinically relevant inhibition levels.
Conclusions:
- Blocking the K-Ras/PDEδ protein-protein interaction represents a promising new approach for Ras-targeted cancer therapy.
- Further research is warranted to fully evaluate the clinical potential of this strategy.
Related Concept Videos
The Ras Gene
Ras is a superfamily...
Small GTPases - Ras and Rho
Three regulatory proteins control their activity:
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Abnormal Proliferation
Mitogens and the Cell Cycle
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
