Oral cancer in vivo gene expression profiling assisted by laser capture microdissection and microarray analysis

Area of Science:

• Genomics
• Molecular Biology
• Oncology

Background:

• Oral cancer is a significant global health concern.
• Understanding the molecular mechanisms of oral carcinogenesis is crucial for developing effective treatments.

Purpose of the Study:

• To identify novel genes associated with oral cancer.
• To create a comprehensive gene expression profile of oral carcinogenesis.
• To explore the roles of known and previously uncharacterized genes in oral cancer development.

Main Methods:

• Gene expression profiling of laser capture microdissected (LCM) tumor and normal oral epithelial cells.
• Analysis using high-density oligonucleotide microarrays.

Main Results:

• Approximately 600 oral cancer-associated genes were identified.
• These genes encompass oncogenes, tumor suppressors, transcription factors, xenobiotic enzymes, metastatic proteins, and differentiation markers.
• A database of gene expression profiles during oral carcinogenesis was established.

Conclusions:

• The study provides a global gene expression profile of oral carcinogenesis.
• Identified genes offer potential roles in oral cancer, including previously uncharacterized ones.
• This resource can aid in the discovery of new diagnostic markers and therapeutic strategies for oral cancer.