【摘要】：Tfh細胞是最近發(fā)現(xiàn)的第5個CD4~+Th細胞新亞群,主要定位于淋巴濾泡中,是T-B細胞相互作用的橋梁,主要在調節(jié)B淋巴細胞增殖、漿細胞分化及抗體類別轉換等方面發(fā)揮作用。以上功能的實現(xiàn)與轉錄因子Bcl-6、細胞因子IL-21、趨化因子受體CXCR5、共刺激分子ICOS與CD40L及共抑制分子PD-1等密切相關。近年來研究發(fā)現(xiàn)Tfh細胞功能的失調在自身免疫性疾病、感染、免疫缺陷病等疾病中發(fā)揮重要作用,本文就Tfh細胞的生物學特性及其在慢性肝病中的作用進行綜述。
[Abstract]:Tfh cells are the fifth newly discovered subsets of CD4~ Th cells, which are mainly located in the lymphatic follicles and act as a bridge for the interaction of T-B cells. They play an important role in regulating the proliferation of B lymphocytes, the differentiation of plasma cells and the transformation of antibodies. The realization of these functions is closely related to the transcription factor Bcl-6, cytokine IL-21, chemokine receptor CXCR5, costimulatory molecule ICOS CD40L and coinhibitory molecule PD-1. In recent years, it has been found that the dysfunction of Tfh cells plays an important role in autoimmune diseases, infections and immunodeficiency diseases. The biological characteristics of Tfh cells and their roles in chronic liver diseases are reviewed in this paper.
【作者單位】： 福建醫(yī)科大學附屬泉州第一醫(yī)院感染科;
【基金】：國家自然科學基金資助項目(編號:81400625) 福建省自然科學基金資助項目(編號:2015J01413) 泉州市科技計劃項目課題資助項目(編號:2013Z53)
【分類號】：R575

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本文編號：2271053