Mapping kinase domain resistance mechanisms for the MET receptor tyrosine kinase via deep mutational scanning

Author:

Estevam Gabriella O.ORCID,Linossi Edmond M.ORCID,Rao JingyouORCID,Macdonald Christian B.ORCID,Ravikumar AshrayaORCID,Chrispens Karson M.ORCID,Capra John A.ORCID,Coyote-Maestas WillowORCID,Pimentel HaroldORCID,Collisson Eric A.ORCID,Jura NataliaORCID,Fraser James S.ORCID

Abstract

AbstractMutations in the kinase and juxtamembrane domains of the MET Receptor Tyrosine Kinase are responsible for oncogenesis in various cancers and can drive resistance to MET-directed treatments. Determining the most effective inhibitor for each mutational profile is a major challenge for MET-driven cancer treatment in precision medicine. Here, we used a deep mutational scan (DMS) of ∼5,764 MET kinase domain variants to profile the growth of each mutation against a panel of 11 inhibitors that are reported to target the MET kinase domain. We identified common resistance sites across type I, type II, and type I ½ inhibitors, unveiled unique resistance and sensitizing mutations for each inhibitor, and validated non-cross-resistant sensitivities for type I and type II inhibitor pairs. We augment a protein language model with biophysical and chemical features to improve the predictive performance for inhibitor-treated datasets. Together, our study demonstrates a pooled experimental pipeline for identifying resistance mutations, provides a reference dictionary for mutations that are sensitized to specific therapies, and offers insights for future drug development.

Publisher

Cold Spring Harbor Laboratory

Reference82 articles.

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