Gene structure of the human receptor tyrosine kinase RON and mutation analysis in lung cancer samples

Area of Science:

• Oncology
• Molecular Biology
• Genetics

Background:

• The human RON gene (MST1R) is located in a chromosomal region frequently altered in lung cancer.
• RON encodes a receptor tyrosine kinase (RTK) related to MET, a gene implicated in cancer development.
• Understanding RON's role may offer insights into lung cancer pathogenesis.

Purpose of the Study:

• To investigate the potential involvement of the RON gene in lung cancer development and progression.
• To characterize the exon-intron structure of the human RON gene.
• To develop mutation analysis tools for the RON gene.

Main Methods:

• Determined the exon-intron structure of the RON gene via DNA sequencing and PCR.
• Developed intron-anchored primers for mutation analysis using single-strand conformation polymorphism (SSCP).
• Analyzed RON in lung cancer cell lines and patient samples (small and non-small cell lung cancer).

Main Results:

• Characterized twenty coding exons of the RON gene, noting their small average size.
• Detected RON expression in lung cancer cell lines.
• Identified a specific mutation (T915C: L296P) in an adenocarcinoma specimen and found several single nucleotide polymorphisms (SNPs).

Conclusions:

• The study characterized the RON gene structure and developed primers for mutation analysis.
• A mutation and SNPs in RON were identified in lung cancer samples, suggesting its potential role.
• The developed primer panel is valuable for future RON gene mutation studies in various human tumors.