Building an atlas of mechanobiology: high-throughput contractility screen of 2418 kinase inhibitors in five primary human cell types reveals selective divergent responses among related cell types
Shpak, A.; Wan, J.; Huang, R.; Cortes, E.; Wang, Y.; Damoiseaux, R.; Pushkarsky, I.
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Cellular mechanical forces play crucial roles in both normal physiology and disease, yet drug discovery efforts targeting mechanobiology have been limited in part by assumptions about the conservation of contractile pathways across cell types. Here, we present the first high-throughput contractility screen of an annotated kinase inhibitor library, evaluating 2,418 compounds across five primary human cell types using the FLECS (Fluorescent Elastomer Contractility Sensors) platform. Quantification of contractile responses revealed selective divergent responses among related cell types. Clustering analysis identified distinct mechanobiological profiles and novel pathway associations that challenge the assumption that contractile pathways are too highly conserved for selective targeting. This systematic approach supports wider adoption of mechanical phenotypic screening as a viable strategy for discovering cell-type specific contractile pathway modulators for a broad range of mechanically-driven disease indications.
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