Key candidate genes associated with BRAF^V600E in papillary thyroid carcinoma on microarray analysis

Area of Science:

• Oncology
• Molecular Biology
• Genetics

Background:

• The BRAF V600E mutation is a significant driver in papillary thyroid cancer (PTC).
• Understanding the specific molecular mechanisms and genetic alterations associated with this mutation is crucial for targeted therapies.

Purpose of the Study:

• To identify key candidate genes that are distinct in BRAF V600E-mutated PTC compared to BRAF wild-type PTC.
• To explore the functional roles of these genes in PTC pathogenesis.

Main Methods:

• Transcriptomics data analysis from three microarray datasets (GSE27155, GSE54958, GSE58545).
• Identification of differentially expressed genes (DEGs) and application of weighted gene coexpression network analysis.
• Selection of hub genes and intersection with DEGs, followed by receiver operating characteristic (ROC) curve analysis for key gene identification.

Main Results:

• 491 DEGs were identified between BRAF V600E-PTC and BRAF wild-type PTC.
• Functional enrichment analysis suggested a role for negative regulation of wound healing in BRAF V600E-related pathogenesis.
• Six key candidate genes (GRB7, SNAP25, SLC35F2, FAM155B, HGD, ITPR1) were identified. These genes showed differential expression patterns based on cytomorphology but not overall survival.

Conclusions:

• This research provides novel insights into genes specifically associated with the BRAF V600E mutation in PTC.
• The identified key genes may serve as potential therapeutic targets for BRAF V600E-mutated papillary thyroid cancer.