AKT1型
蛋白激酶B
离子霉素
多发性硬化
免疫学
流式细胞术
医学
外周血单个核细胞
白细胞介素2受体
PI3K/AKT/mTOR通路
免疫系统
癌症研究
生物
作者
Fatma Betul Oktelik,Vuslat Yilmaz,Recai Turkoglu,Ece Akbayır,Erdem Tüzün,Günnur Deniz,Suzan Çinar
标识
DOI:10.1007/s13760-020-01518-9
摘要
Multiple sclerosis is an autoimmune disorder induced by the infiltration of autoreactive immune cells into the central nervous system. Akt/PKB signaling pathway is crucially involved in T cell development and survival. We aimed to determine whether Akt1 expression levels of regulatory T (Treg) cells are altered in MS and are associated with disease activity. Relapsing-remitting multiple sclerosis (RR-MS, n = 17) patients and healthy individuals (n = 20) were enrolled. Peripheral blood mononuclear cells were isolated and anti-CD3, -CD4, -CD8, -CD25, -CD127 monoclonal antibodies were used to identify the T cell subsets. After stimulation with phorbol myristate acetate/ionomycin, the Akt1 and phosphorylated-Akt1 (p-Akt1) levels of T cell subsets were detected with intracellular staining using flow cytometry. Total Akt1 and p-Akt1 expression levels were found to be suppressed in CD4+ T cell and Treg populations of RR-MS patients. Progression indices were positively correlated with Akt1 expression levels of Tregs indicating that the Akt pathway might partake in the progression of multiple sclerosis. Flow cytometry may effectively be used for the evaluation of the Akt pathway activity. Our findings suggest that the magnitude of suppression of the Akt pathway might serve as a biomarker for the prognosis of multiple sclerosis.
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