Related Experiment Video
Updated: Oct 30, 2025

Characterize Disease-related Mutants of RAF Family Kinases by Using a Set of Practical and Feasible Methods
Published on: July 17, 2019
Spotlight on Accessory Proteins: RTK-RAS-MAPK Modulators as New Therapeutic Targets
Silke Pudewell1, Mohammad Reza Ahmadian1
1Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine University, 40225 Düsseldorf, Germany.
Abstract:
The RTK-RAS-MAPK axis is one of the most extensively studied signaling cascades and is related to the development of both cancers and RASopathies. In the last 30 years, many ideas and approaches have emerged for directly targeting constituent members of this cascade, predominantly in the context of cancer treatment. These approaches are still insufficient due to undesirable drug toxicity, resistance, and low efficacy. Significant advances have been made in understanding the spatiotemporal features of the constituent members of the RTK-RAS-MAPK axis, which are linked and modulated by many accessory proteins. Given that the majority of such modulators are now emerging as attractive therapeutic targets, a very small number of accessory inhibitors have yet to be discovered.
Related Concept Videos
MAPK Signaling Cascades
Receptor Tyrosine Kinases
Enzyme-linked Receptors
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
PI3K/mTOR/AKT Signaling Pathway
Transducer Mechanism: Enzyme-Linked Receptors
Major types that are helpful drug targets include:
Small GTPases - Ras and Rho
Three regulatory proteins control their activity:

