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Updated: Jun 4, 2026
05:39
Spontaneous Murine Model of Anaplastic Thyroid Cancer
Published on: February 3, 2023
The BRAFV600E mutation: what is it really orchestrating in thyroid cancer?
Carmelo Nucera1,2, Jack Lawler2, Richard Hodin1
1Thyroid Cancer Research Laboratory, Endocrine Surgery Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Oncotarget
|February 16, 2011
Summary
The BRAFV600E mutation fuels thyroid cancer aggressiveness by altering extracellular matrix and promoting cell invasion. Targeting these BRAFV600E-modulated genes offers a new treatment strategy for aggressive thyroid cancers.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- BRAFV600E is a common driver mutation in papillary thyroid carcinoma (PTC) and anaplastic thyroid carcinoma.
- This mutation is linked to increased tumor aggressiveness, including metastasis and recurrence in PTC patients.
Purpose of the Study:
- To investigate how BRAFV600E influences extracellular matrix (ECM) composition and promotes thyroid cancer cell migration and invasion.
- To elucidate the downstream signaling pathways, including the ERK1/2 pathway, affected by BRAFV600E.
- To identify potential therapeutic targets and biomarkers associated with BRAFV600E-driven thyroid cancer.
Main Methods:
- Genome-wide expression profiling using Gene Set Enrichment Analysis (GSEA).
- In vitro and in vivo functional studies to assess cell migration and invasion.
- Analysis of the phospho-MEK1/2 and phospho-ERK1/2 signaling pathway.
Main Results:
- BRAFV600E alters ECM composition, increasing expression of collagens and laminins.
- The mutation promotes thyroid cancer cell migration and invasion.
- BRAFV600E, via the ERK1/2 pathway, regulates genes involved in cell signaling, differentiation, and aggressiveness.
Conclusions:
- BRAFV600E drives thyroid cancer aggressiveness by modulating ECM and promoting invasion.
- Targeting BRAFV600E-modulated genes presents a novel therapeutic approach for thyroid cancers.
- Identifying downstream BRAFV600E/ERK1/2 pathway events can lead to new biomarkers for disease outcome.
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