HLA-G and renal cell carcinoma: HLA-G was detected (IHC H-score > 0) in archival tissues from 12/25 evaluable patients (Fig. 6a): 3/4 (75.0%) patients with RCC, 4/15 (26.7%) patients with CRC, and 5/6 (83.3%) patients with OC (Fig. 6b).