Abstract
Accepted 20 May , 2015
??Non-Hodgkin s lymphomas are the hematologic malignancy with the most prevalence worldwide, they are generally classified as B-cell or T-cell lymphoma .Theincidence rate of NHL for the total population is 5.16 % according to Iraqi cancer registry (ICR) in 2010.
This study was designed to asses’bcl-2 and p53 overexpression in Iraqi patients with NHL and correlation with different prognostic indices (age, sex, stage, grade, and International prognostic index).
Samples included in this study represented as 50 formalin-fixed paraffin embedded lymph node blocks of patients with NHL,during the period from September 2013 till November 2014,and these blocks collected from the histopathology laboratories of Al-Hilla Teaching Hospital as well as many private histopathology laboratories in Hilla city, These blocks stained Immunohistochemically for bcl-2 and p53 protein expression by using L-SAB+ staining methods.
Results revealed Significant correlation between bcl-2, p53overexpression and different grades of NHL (p-value < 0.05), while there are no significant relationship between bcl-2, p53 and age, sex, stage, and IPI score (p-value > .)0.05
In conclusion there are up regulation of P53 protein associated with down regulation of bcl2 protein in patients with high, intermediate to low grades of NHL while no significant association with IPI score& factors.
Key words: Non-Hodgkin lymphoma, P53, Bcl-2.