Related Experiment Video
Updated: Jan 4, 2026

Characterize Disease-related Mutants of RAF Family Kinases by Using a Set of Practical and Feasible Methods
Published on: July 17, 2019
KRAS/NRAS/BRAF Mutations as Potential Targets in Multiple Myeloma
Sergiu Pasca1, Ciprian Tomuleasa1,2,3, Patric Teodorescu1,2
1Department of Hematology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
Abstract:
In multiple myeloma the mutational profile is mainly represented by translocations involving chromosome 14 and by single nucleotide mutations, frequently involving genes implicated in the mitogen activated protein kinase (MAPK) pathway, as KRAS, NRAS, and, less frequently, BRAF. Because KRAS/NRAS/BRAF mutations are associated with a higher number of mutations per patient, we hypothesize that this group of patients could benefit from therapy with checkpoint inhibitors because of the higher frequency of neo-antigens that this group would present. This might also true for IMiD therapy, because of their activatory effect on T cells. Because, KRAS/NRAS/BRAF are members of the MAPK pathway, this subgroup of patients would also benefit from inhibitors of MAPK, either directly on the specific mutation or through downstream targeting of MEK1/2 or ERK1/2 to account for a possible compensatory collateral signaling that might activate as response to upstream inhibition.
Insights
Patients with multiple myeloma harboring KRAS, NRAS, or BRAF mutations may benefit from immunotherapy and MAPK pathway inhibitors due to increased neo-antigens and T-cell activation. These genetic alterations suggest potential therapeutic strategies for this patient subgroup.
Area of Science:
- Oncology
- Genetics
- Immunology
Background:
- Multiple myeloma is characterized by chromosomal translocations and single nucleotide mutations.
- Mutations frequently affect the mitogen-activated protein kinase (MAPK) pathway, including KRAS, NRAS, and BRAF genes.
Purpose of the Study:
- To investigate the potential therapeutic benefits of immunotherapy and MAPK pathway inhibitors in multiple myeloma patients with specific genetic mutations.
- To hypothesize that KRAS/NRAS/BRAF mutations, associated with a higher mutation burden, may predict response to checkpoint inhibitors and IMiD therapy.
Main Methods:
- This study is based on a hypothesis derived from existing mutational profile data in multiple myeloma.
- Analysis of the association between KRAS/NRAS/BRAF mutations and potential therapeutic targets.
Main Results:
- KRAS/NRAS/BRAF mutations are linked to a higher number of mutations per patient, suggesting increased neo-antigen presentation.
- This mutational profile may enhance the efficacy of immune checkpoint inhibitors and IMiD therapy due to T-cell activation.
Conclusions:
- Multiple myeloma patients with KRAS/NRAS/BRAF mutations represent a subgroup that could potentially benefit from immunotherapy.
- Targeting the MAPK pathway, directly or downstream (MEK1/2, ERK1/2), is a promising therapeutic strategy for this patient population.
More Related Videos
06:44Author Spotlight: Integrating BRET-Based Assays and Rare Mutation Analysis to Decipher RAF Kinase Regulation in Live Cells
Published on: March 1, 2024
05:32Multimodal Bioluminescent and Positronic-emission Tomography/Computational Tomography Imaging of Multiple Myeloma Bone Marrow Xenografts in NOG Mice
Published on: January 7, 2019
Related Concept Videos
The Ras Gene
Ras is a...
Abnormal Proliferation
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
Small GTPases - Ras and Rho
Three regulatory proteins control their activity:
Targeted Cancer Therapies
There are several types of targeted therapies against...
MAPK Signaling Cascades