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. 2015 Aug 1;8(8):9410-5.
eCollection 2015.

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

Affiliations

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

Chunjing Li et al. Int J Clin Exp Pathol. .

Abstract

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.

Keywords: Clear cell renal cell carcinoma; IHC; PGAM1; clinicalpathological features; molecular marker.

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Figures

Figure 1
Figure 1
The expression of PGAM1 in normal kidney and CCRCC tissues (40×). A. Negative expression in Normal kidney tissue; B. Weak expression in Normal kidney tissue; C. Moderate expression in Normal kidney tissue; D. Strong expression in Normal kidney tissue; E. Negative expression in CCRCC tissue; F. Weak expression in CCRCC tissue; G. Moderate expression in CCRCC tissue; H. Strong expression in CCRCC tissue.
Figure 2
Figure 2
PGAM1 expression in CCRCC and matched normal kidney tissues was quantitatively detected by Western blot. A. Western blot results showed that PGAM1 expression in CCRCC was increased compared with those in normal kidney tissues. B. Statistical analysis of PGAM1 expression in CCRCC and matched normal kidney tissues. *P<0.05.

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