CASP3 and intrahepatic cholangiocarcinoma: Caspase-3-mediated pyroptosis has been reported to play significant roles in chemotherapeutic response but the relevant therapeutic strategy remains unstated due to the unclear molecular mechanisms under pyroptosis in ICC.<h4>Objectives</h4>This study was designed to comprehensively explore the crucial role and underlying mechanisms of NRXN3 in pyroptosis and chemosensitivity of ICC.<h4>Methods</h4>We performed genome-scale CRISPR-Cas9 screen integrated with transcriptomic analysis to identify key regulators of pyroptosis and gemcitabine sensitivity in ICC.