Proteomic Profiling Identifies CLDN3 as a Tumor-Selective Therapeutic Target in Small Cell Lung Cancer
An integrated proteogenomic pipeline combining single-cell RNA sequencing, combinatorial optimization, mass spectrometry–based proteomics, and immunohistochemistry is developed to systematically map the SCLC surfaceome of 49 tumors across 25 patients with relapsed SCLC and found claudin-3 (CLDN3) to be a consistently e...