Epidermal Growth Factor Receptor Activation in Glioblastoma through Novel Missense Mutations in the Extracellular Domain
[Paper-level Aggregated] PMCID: PMC1702556
Evidence Type(s): Oncogenic
Summary: Mutation: L861Q | Summary: The L861Q mutation in the EGFR kinase domain is identified as a missense mutation in glioblastoma, contributing to tumor development and oncogenesis, as evidenced by its role in anchorage-independent colony formation in NIH-3T3 cells and tumor formation in mice.
Evidence Type: Oncogenic Mutation: A289 | Summary: The A289 mutation is noted as one of the evolutionarily conserved residues affected by mutations in glioblastomas, suggesting its contribution to tumor progression. The A289D and A289T variants are found in tumors without matched normal tissue, indicating their potential roles in tumor development. Additionally, the A289V mutation demonstrates oncogenic properties by facilitating anchorage-independent colony formation in NIH-3T3 cells and is associated with tumor development in mice.
Evidence Type: Oncogenic Mutation: R108 | Summary: The R108 mutation is identified as an evolutionarily conserved residue affected by mutations in glioblastomas, indicating its potential role in tumor development. The R108K variant contributes to tumor development, allowing for anchorage-independent colony formation in NIH-3T3 cells and leading to large tumors in mice expressing this mutant.
Evidence Type: Oncogenic Mutation: E330K | Summary: The E330K mutation is described as germline but is also noted in the context of tumor samples, suggesting its involvement in oncogenic processes.
Evidence Type: Oncogenic Mutation: R324L | Summary: The R324L mutation is noted in tumors without matched normal tissue, indicating its potential role in tumor development.
Evidence Type: Oncogenic Mutation: T263P | Summary: The T263P mutation in EGFR is associated with oncogenic behavior, enabling anchorage-independent colony formation in NIH-3T3 cells and leading to tumor formation in mice.
Evidence Type: Oncogenic Mutation: G598V | Summary: The G598V mutation in EGFR is implicated in oncogenic activity, supporting anchorage-independent colony formation in NIH-3T3 cells and contributing to tumor progression, as evidenced by significant tumors produced in the animal model.
Evidence Type: Oncogenic Mutation: L858R | Summary: The L858R mutation is suggested to play a role in gliomagenesis and contributes to tumor development, as indicated by its oncogenicity in transformation assays.
Gene→Variant (gene-first): EGFR(1956):L861Q EGFR(1956):A289 EGFR(1956):R108 EGFR(1956):E330K EGFR(1956):R324L EGFR(1956):T263P EGFR(1956):G598V EGFR(1956):L858R
Genes: EGFR(1956)
Variants: L861Q A289 R108 E330K R324L T263P G598V L858R