Rare Germ-line Mutation in EGFR Linked to Lung Cancer
Author Information
Author(s): Irene Centeno, Pilar Blay, Iñigo Santamaría, Aurora Astudillo, Ana S Pitiot, Fernando G Osorio, Patricia González-Arriaga, Fernando Iglesias, Primitiva Menéndez, Adonina Tardón, Jose M Freije, Milagros Balbín
Primary Institution: Instituto Universitario de Oncología del Principado de Asturias, Hospital Universitario Central de Asturias
Hypothesis
Can germ-line mutations in the EGFR gene contribute to lung cancer development?
Conclusion
Germ-line mutations in EGFR are rare but may contribute to oncogenesis.
Supporting Evidence
- EGFR mutations were found in 12 of the 71 tumor samples analyzed.
- One mutation (p.R776G) was identified as a germ-line mutation.
- The p.R776G mutation was not found in 954 alleles from healthy individuals.
- Three additional known germ-line mutations were not detected in the studied population.
- In vitro studies showed enhanced autophosphorylation in the p.R776G mutant EGFR.
Takeaway
Some people with lung cancer have a rare change in a gene called EGFR that might help cause the cancer.
Methodology
DNA samples were collected from lung cancer patients and healthy individuals, and EGFR gene mutations were analyzed using sequencing and RFLP analysis.
Limitations
The study did not find additional samples with the identified mutation, limiting the understanding of its prevalence.
Participant Demographics
The study included 912 lung cancer patients, 477 healthy donors, and 32 individuals with other cancers, with a focus on a specific population in Northern Spain.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website