Prognostic Significance of Survivin and Caspase-3 Immunohistochemical Expression in Patients with Diffuse Large B-cell Lymphoma Treated with Rituximab and CHOP

[摘要] Survivin is an inhibitor of apoptosis whose expression may be associated with inferior outcome in patients with diffuse large B-cell lymphoma (DLBCL) treated without rituximab. Caspase-3 is the final caspase of the apoptotic cascade and its pattern of expression may also be related to patients�? outcome. In this study we investigated immunohistochemical expression of survivin and caspase-3 (CPP32) in 57 patients with DLBCL treated with rituximab and CHOP (R-CHOP). According to previously published criteria, we separately analyzed correlation of different types of survivin expression with patients�? outcome. Nuclear survivin was expressed in only 26% of cases, cytoplasmic survivin was expressed in 81% of cases while application of immunoreactivity scoring system yielded 58% of survivin positive cases. Caspase-3 was expressed in 77% of cases. There were no significant correlations between any type of survivin expression and response to treatment or survival of the patients. The expression of caspase-3 was also not associated with patients�? outcome. We conclude that survivin and caspase-3 have no significant prognostic significance in patients with DLBCL treated with R-CHOP.

[学科分类] 生理学与病理学

[关键词] Immunohistochemistry