Distinct immunophenotypes and prognostic factors in renal cell carcinoma with sarcomatoid differentiation: a systematic study of 19 immunohistochemical markers in 42 cases
Wenjuan Yu, Yuewei Wang, …, Yujun Li
“ng. Immunohistochemistry was performed on tissue microarrays comprising of 42 cases containing both typical renal cell carcinoma cells and sarcomatoid cells. Primary antibodies used in the study including vimentin (Cell Marque, V9), cytokeratin (CK) (Origene, AE1/AE3), epithelial membrane antigen (EMA) (Thermo, E29), cytokeratin-7 (CK7) (Cell Marque, OV-TL12/30), cytokeratin-18 (CK18) (Origene, UMAB50), high molecular weight cytokeratin (HMW-CK) (Cell Marque, CKHMW), and CAIX (Novus, polyclonal),”