...
首页> 外文期刊>Infection and immunity >Effects of Mycoplasma fermentansincognitus on Differentiation of THP-1 Cells
【24h】

Effects of Mycoplasma fermentansincognitus on Differentiation of THP-1 Cells

机译:发酵支原体对THP-1细胞分化的影响

获取原文
           

摘要

Mycoplasma fermentans incognitus has been isolated from human tissue in patients both with and without AIDS who died of systemic infection. M. fermentans incognitus and other strains of M. fermentans have been associated with rheumatoid arthritis. While cell extracts of M. fermentansincognitus can induce changes in murine and human cells of the monocytic lineage, little is known about interactions of viable organisms with such cells. Because of the central role of macrophages in chronic inflammation, we examined the effects of M. fermentans incognitus on surface markers and functions of THP-1 cells, a well-characterized human monocytic cell line. This cell line has been used extensively in studies of macrophage differentiation, especially following exposure to phorbol esters. Changes in cell morphology, phagocytosis, rate of cell division, and selected surface markers were evaluated in cultures of THP-1 cells exposed to phorbol myristate acetate (PMA), M. fermentans incognitus, or both. As reported by other investigators, PMA induced THP-1 cells to differentiate into cells resembling tissue macrophages. M. fermentans incognitus only minimally affected changes induced by PMA, slightly increasing the percentage of cells positive for FCγRI and major histocompatibility complex (MHC) class II antigens. M. fermentans incognitus alone induced an incomplete arrest in the cell cycle at G0 phase, increased phagocytic ability, and enhanced expression of FCγRI, CR3, CR4, and MHC class II antigens.
机译:从人体组织中分离出了发酵支原体患者,该患者患有或不患有艾滋病,均死于全身感染。 M。发酵罐隐身菌和其他 M菌株。发酵菌与类风湿关节炎有关。而 M的细胞提取物。发酵酵素可诱导鼠单核细胞系的鼠类和人类细胞发生变化,而关于活菌与此类细胞的相互作用知之甚少。由于巨噬细胞在慢性炎症中的重要作用,我们检查了 M的作用。发酵罐识别出特征丰富的人单核细胞系THP-1细胞的表面标志物和功能。该细胞系已广泛用于巨噬细胞分化的研究,特别是在暴露于佛波酯后。在暴露于佛波肉豆蔻酸酯乙酸盐(PMA), M的THP-1细胞培养物中,评估了细胞形态,吞噬作用,细胞分裂速率和选定的表面标记的变化。发酵罐隐身,或两者兼而有之。正如其他研究人员所报道的那样,PMA诱导THP-1细胞分化为类似于组织巨噬细胞的细胞。 M。发酵罐仅对PMA引起的变化影响最小,略微增加了FCγRI和主要组织相容性复合物(MHC)II类抗原阳性细胞的百分比。 M。单独的发酵罐发酵液会导致细胞周期在G 0 期不完全停滞,吞噬能力增强以及FCγRI,CR3,CR4和MHC II类抗原的表达增强。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号