ITGB4 was substantially expressed in single cells of basal cell carcinoma, cholangiocarcinoma (CHOL), colorectal carcinoma CCRC), glioma, HNSCC, non-small cell lung cancer (NSCLC), ovarian serous cystadenocarcinoma (OV), and pancreatic adenocarcinoma (PAAD). The gene discussed is ITGB4; the disease is ovarian serous cystadenocarcinoma.