Related Experiment Video
Updated: Mar 7, 2026

Spatial and Temporal Analysis of Active ERK in the C. elegans Germline
Published on: November 29, 2016
Deciphering the RAS/ERK pathway in vivo
Coralie Dorard1, Georg Vucak1, Manuela Baccarini2
1Max F. Perutz Laboratories, Center for Molecular Biology, University of Vienna, Vienna 1030, Austria.
Abstract:
The RAS/ERK pathway has been intensely studied for about three decades, not least because of its role in human pathologies. ERK activation is observed in the majority of human cancers; in about one-third of them, it is driven by mutational activation of pathway components. The pathway is arguably one of the best targets for molecule-based pharmacological intervention, and several small-molecule inhibitors are in clinical use. Genetically engineered mouse models have greatly contributed to our understanding of signaling pathways in development, tissue homeostasis, and disease. In the specific case of the RAS/ERK pathway, they have revealed unique biological roles of structurally and functionally similar proteins, new kinase-independent effectors, and unsuspected relationships with other cascades. This short review summarizes the contribution of mouse models to our current understanding of the pathway.
Insights
Genetically engineered mouse models have significantly advanced the understanding of the RAS/ERK pathway, revealing novel biological roles and therapeutic targets for human diseases like cancer.
Area of Science:
- Molecular Biology
- Cell Signaling
- Oncology
Background:
- The RAS/ERK pathway is crucial in cellular processes and frequently dysregulated in human cancers.
- Mutations in RAS/ERK pathway components drive cancer in approximately one-third of cases.
- The pathway is a validated target for pharmacological interventions, with several inhibitors in clinical use.
Purpose of the Study:
- To review the significant contributions of genetically engineered mouse models to understanding the RAS/ERK signaling pathway.
- To highlight how mouse models have elucidated complex biological roles and interactions within the pathway.
Main Methods:
- Review of scientific literature focusing on genetically engineered mouse models.
- Analysis of studies investigating the RAS/ERK pathway in development, homeostasis, and disease using mouse models.
Main Results:
- Mouse models have identified unique biological functions of similar proteins within the RAS/ERK pathway.
- These models have uncovered novel kinase-independent effectors and unexpected cross-talk with other signaling cascades.
- Insights into the pathway's role in cancer development and progression have been gained.
Conclusions:
- Genetically engineered mouse models are indispensable tools for dissecting complex signaling pathways like RAS/ERK.
- These models provide critical insights into pathway mechanisms, offering potential for new therapeutic strategies in cancer and other diseases.
More Related Videos
Related Concept Videos
MAPK Signaling Cascades
The Ras Gene
Ras is a...
PI3K/mTOR/AKT Signaling Pathway
Interactions Between Signaling Pathways
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Amplifying Signals via Enzymatic Cascade
Small GTPases - Ras and Rho
Three regulatory proteins control their activity:

