Expression of PGAM1 in renal clear cell carcinoma and its clinical significance.

OBJECTIVE This study is aimed to evaluate the expression of phosphoglycerate mutase 1 (PGAM1) in normal kidney and clear cell renal cell carcinoma (CCRCC), also to evaluate the correlation between PGAM1 expression and clinicopathological features in CCRCC. METHODS PGAM1 expression was detected in 80 cases of normal kidney and 192 cases of CCRCC by immunohistochemistry (IHC). Meanwhile, PGAM1 expression measured in 8 cases of CCRCC and matched normal kidney tissues by Western blot. Then, the correlation between PGAM1 expression and clinicalpathological features was analyzed in CCRCC. RESULTS IHC results exhibited that the high-expression rate of PGAM1 in CCRCC tissues was 45.8%, which was significantly higher than those in normal kidney tissues (32.5%, P=0.044). Meanwhile, PGAM1 expression in CCRCC was significantly greater compared with those in normal kidney by Western blot. Moreover, PGAM1 expression was significantly associated with age, tumor size and T stage in CCRCC. CONCLUSION PGAM1 is highly expressed in CCRCC and correlated with clinicalpathological features, which may contribute to tumor formation and progression.