Insulin receptor substrate 2 (IRS2) confers resistance to PI3K pathway inhibition in PIK3CA mutant breast cancer
Michael W. Lero, Jennifer S. Morgan, Michael-Anthony Card, Lihua Julie Zhu, Junhui Li, Rui Li, Quyen Thu Bui, Emma Mohlmann, Hira Lal Goel, Leslie M. J. Shaw
This study identifies IRS2 as a mediator of resistance to PI3K pathway inhibitors in PIK3CA mutant breast cancer by sustaining PI3K signaling through FOXO3-mediated regulation.
Journal of Biological Chemistry · Aug 10, 2026Peer-reviewedCancer Biology