Objective: To explore the role of T cell-mediated immunity in the pathogenesis of venous thromboembolism (VTE) by analyzing the differential expression of T cell immune-related gene mRNAs peripheral blood mononuclear cells (PBMCs) between VTE patients and controls with GeneChip Human Genome.
Methods: Human cDNA microarray analysis was employed in PBMCs from 20 VTE patients and 20 hypertensive controls, and random variant model (RVM) corrected t-test was used for statistical analysis of differential gene expression.
Results: Six mRNA stripes including CD(247), CD(3D), CD(3G), Granzyme A (GzmA), Granzyme B (GzmB) and Zeta-chain-associated protein kinase 70 (ZAP70) were found to be associated with T cell-mediated immunity. Significant down-regulation of these six mRNAs was found in the VTE group compared with the controls (15.3050 ± 0.6346 vs 15.8053 ± 0.5567, 13.7878 ± 0.7731 vs 14.3820 ± 0.4857, 13.3299 ± 0.9104 vs 14.1246 ± 0.6011, 14.8893 ± 0.8675 vs 15.5305 ± 0.4624, 15.9113 ± 0.8123 vs 16.4553 ± 0.5055, 14.3652 ± 0.7717 vs 14.3652 ± 0.7717; all P values < 0.05).
Conclusions: T cells' function including antigen recognition, signal transduction and cytotoxicity was impaired in VTE patients. T cell-mediated immunity dysfunction probably plays an important role in the pathogenesis of VTE.
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