FKBP10 and neoplasm: Although FKBP10, a peptidyl-prolyl-cis-trans-isomerase FK506-binding protein, has been reported as a potential cancer-related therapeutic target with a key biological role in tumor growth of NSCLC cells,14 the specific data on FKBP10 protein expression and its clinicopathological significance in NSCLC brain metastases remains unclear.