Expression of inflammatory cytokines, Bcl2 and cathepsin D are altered in lymphoblasts of autistic subjects
2011
Abstract To determine whether inflammation and apoptosis are involved in the pathogenesis of autism, we examined cytokines, Bcl2 expression and cathepsin D protease activity in the lymphoblasts of autistic subjects and age-matched controls. We found increased expression levels of pro-inflammatory cytokines TNF-α and IL-6, but decreased Bcl2 expression in lymphoblasts of autistic subjects. We also found that cathepsin D mRNA and protein expression were significantly increased in autistic lymphoblasts. Conclusion : Our findings suggest that inflammation and apoptosis may play a significant role in the pathogenesis of autism, and cathepsin D may participate in the regulation of cytokine-induced inflammation and apoptosis in autistic lymphoblasts.
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