Pattern of matrix metalloproteinases-9, P53 and BCL-2 proteins in Egyptian patients with pulmonary Mycobacterium tuberculosis

El-Masry, Samir and Lotfy, Mahmoud and Samy, Mona and Moawia, Shadin and El-Sayed, Ibrahim and Khamees, Islam M. (2010) Pattern of matrix metalloproteinases-9, P53 and BCL-2 proteins in Egyptian patients with pulmonary Mycobacterium tuberculosis. Acta Microbiologica et Immunologica Hungarica, 57 (2). pp. 123-133. ISSN 1217-8950

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Abstract

Matrix metalloproteinases (MMPs) constitute a large family of enzymes that degrade extracellular matrix proteins (ECM). MMPs are implicated in different pathological conditions such as cancer. Bcl-2 and P53 are key controllers of programmed cell death (PCD) or apoptosis. The aim of the present study was to determine the MMP-9, P53 and Bcl-2 levels in Egyptian patients with Mycobacterium tuberculosis (MTB) (Group I) compared with healthy control individuals (Group II). The concentrations of serum MMP-9 were determined quantitatively using enzyme immunoassay (EIA). P53 and Bcl-2 levels were assayed by flow cytometric analysis using specific monoclones. MMP-9 level was significantly higher in MTB patients compared with healthy control. Similarly, P53 and Bcl-2 levels were increased in MTB patients compared with healthy ones. These data reflect the alteration of MMP-9 level during the course of MTB infection, accompanied with apparent dysregulation of cellular apoptosis as indicated by P53 and Bcl-2 over-expression.

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