Structural Studies of Fourth-Generation EGFR Inhibitors Reveal Insights into Selective T790M and C797S Targeting.

ABSTRACT: Inhibitors targeting mutant EGFR remain a persistent need in combating drug resistance in non-small cell lung cancer. To better understand the molecular factors involved in targeting T790M and C797S mutations, we determined X-ray cocrystal structures of fourth-generation inhibitors BI-8128 and BI-4732. Analysis from molecular dynamics and thermodynamic integration calculations correlated with biochemical and cellular measurements indicate that BI-8128 binds the double T790M/C797S more strongly than the single mutations individually. This observation showcases strengths in the design of these fourth-generation EGFR inhibitors as profile criteria require drugs to inhibit an array of oncogenic and drug resistance mutations.

SUBMITTER: Damghani T 

PROVIDER: S-EPMC12893389 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature