دوره 5، شماره 3 - ( 5-1396 )                   جلد 5 شماره 3 صفحات 5-10 | برگشت به فهرست نسخه ها


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چکیده:   (1451 مشاهده)
Background: PPreviously, it was shown that exhausted CD4+ and CD8+ T cells in chronic lymphocytic leukemia (CLL) co-express the two immune-inhibitory receptors, Tim-3 and PD-1. Present study investigated the expression of Blimp-1, a transcription factor involved in T cell exhaustion, in patients with CLL.
Materials and Methods: Peripheral blood mononuclear cells were collected from 25 untreated CLL patients and 15 sex- and age-matched normal subjects. CLL patients were clinically classified according to the Rai staging system. The relative expression of Blimp-1 mRNA was determined by quantitative Real Time Polymerase Chain Reaction (qRT-PCR) after normalization with β-actin.
Results: Expression of Blimp-1 mRNA was much higher in CLL patients than in normal controls (p=0.001). Moreover, Blimp-1 was more expressed in patients with advanced clinical stages of CLL compared to those with early stages of the disease (p=0.01). Interestingly, the Blimp-1 expression was correlated with the frequencies of exhausted Tim-3+/PD-1+/CD4+ and Tim-3+/PD-1+/CD8+ T cells in CLL patients.
Conclusion: Our results highlight the role of Blimp-1 transcription factor in T cell exhaustion of CLL.
 
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نوع مطالعه: پژوهشي | موضوع مقاله: ايمونولوژي
دریافت: ۱۳۹۶/۸/۶ | پذیرش: ۱۳۹۶/۹/۲۵ | انتشار: ۱۳۹۶/۹/۲۵