RESUMEN
Objective To study the expression of GRHL-3 in diffuse large B-cell lymphoma (DLBCL) tissues and its clinical significance.Methods One hundred and sixty-eight pathology paraffin-embedded diffuse large B-cell lymphomas tissues were collected from January 2006 to September 2011.Immunohistochemistry was used to detect the expression of GRHL-3 protein in the above tissues.Results The positive expression rate of GRHL-3 protein in the GCB type tissues was higher than that in the non-GCB type tissues [84.87 ％(101/119) vs 14.29 ％ (7/49), P ＜ 0.01].Further analysis indicated that in the non-GCB type tissues,the positive expression rate of GRHL-3 in the latter stage group was significantly higher than that in the early stage group [90.00 ％ (63/70) vs 77.56 ％ (38/49), P ＜ 0.01].The positive expression rate of GRHL-3 in the lactatede hydrogenase increased group was significantly higher than that in the normal lactated hydrogenase [91.67 ％ (77/84) vs 68.57 ％ (24/35), P ＜ 0.01].The positive expression rate of GRHL-3 in the extranodal involvement status ≥ 2 group was significantly higher than that in the extranodal involvement status 0-1 group [96.29 ％ (26/27) vs 81.52 ％ (75/92), P ＜ 0.05].The positive expression rate of GRHL-3 in the IPI score 4-5 group was significantly higher than that in the IPI score 0-1 group [91.30 ％ (65/69) vs 66.67 ％ (18/27), P ＜ 0.01] and IPI score 2-3 group [91.30 ％ (65/69) vs 79.96 ％ (18/23), P ＜ 0.05].However, the expression of GRHL-3 had no correlation with the gender, age, and performance status of DLBCL.Conclusion The positive expression rate of GRHL-3 protein in the GCB type tissues is higher than that in the non-GCB type tissues.The positive expression rate of GRHL-3 in the DLBCL is correlated with the Ann Arbor stage, lactate dehydrogenase, extranodal involvement status and IPI score.