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首页> 外文期刊>Journal of Neuroimmunology: Official Bulletin of the Research Committee on Neuroimmunology of the World Federation of Neurology >The dynamics of bone marrow stromal cells in the proliferation of multipotent hematopoietic progenitors by substance P: an understanding of the effects of a neurotransmitter on the differentiating hematopoietic stem cell.
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The dynamics of bone marrow stromal cells in the proliferation of multipotent hematopoietic progenitors by substance P: an understanding of the effects of a neurotransmitter on the differentiating hematopoietic stem cell.

机译:P物质在多能造血祖细胞增殖中的骨髓基质细胞动力学:了解神经递质对分化造血干细胞的影响。

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摘要

Communication within the hematopoietic-neuroendocrine-immune axis is partly mediated by neurotransmitters (e.g. substance P, SP) and cytokines. SP mediates neuromodulation partly through the stimulation of bone marrow (BM) progenitors. This study shows that SP, through the neurokinin-1 receptor, stimulates the proliferation of primitive hematopoietic progenitors: cobblestone-forming cells (CAFC, CD34+). This effect is optimal when macrophage is included within the fibroblast support. Indirect induction of IL-1 could be important in the proliferation of CAFC colonies by SP. Phenotypic and functional studies suggest that SP might directly interact with the CD34+/CD45(dim) population. These studies indicate that SP can initiate a cascade of biological responses in the BM stroma and stem cells to stimulate hematopoiesis.
机译:造血神经内分泌免疫轴内的通讯部分由神经递质(例如物质P,SP)和细胞因子介导。 SP通过刺激骨髓(BM)祖细胞部分介导神经调节。这项研究表明,SP通过神经激肽1受体刺激原始造血祖细胞的增殖:鹅卵石形成细胞(CAFC,CD34 +)。当巨噬细胞包含在成纤维细胞支持物中时,这种效果是最佳的。 IL-1的间接诱导在SP增殖CAFC菌落中可能很重要。表型和功能研究表明SP可能直接与CD34 + / CD45(dim)种群相互作用。这些研究表明,SP可以启动BM基质和干细胞中的一系列生物反应,从而刺激造血作用。

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