[Expression of CYR61 and VEGF in extranodal nasal-type NK/T cell lymphoma and their significances].

Objective: To investigate the expression of CYR61 and VEGF in extranodal nasal-type NK/T cell lymphoma and its significance.

Methods: CYR61 mRNA and VEGF mRNA were detected by real-time fluorescence quantitative PCR method in 20 cases of extranodal nasal-type NK/T cell lymphoma. Expressions of CYR61 and VEGF were studied by immunohistochemistry in 40 cases of the tumor.

Results: (1) Over-expression of CYR61 mRNA and VEGF mRNA was found in 19/20(95.0% ) and 15/20(75.0% ) cases, respectively. (2)Tumor cells expressing CYR61 protein and VEGF protein were detected in 38(95.0% ) and 25 (62. 5% ) of the 40 cases respectively, being no significant difference from the control. Co-expression of CYR61 and VEGF at both the mRNA and protein levels was 95.0% and 65.0% , respectively. Over-expression of CYR61 and VEGF at both mRNA and protein levels was found in 8 of the 40 cases. (3) The prognosis of the patients over-expressing CYR61 and VEGF was worse.

Conclusion: In extranodal nasal-type NK/T cell lymphoma, the expression level of CYR61 and VEGF was changed and it may be of prognostic implication of