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作 者:钟淼[1,2] 程桂芳[1,2] 王文杰[1,2] 陈洁[1,2] 朱秀媛 张均田[1,2]
机构地区:[1]中国医学科学院 [2]中国协和医科大学药物研究所
出 处:《药学学报》1997年第12期893-897,共5页Acta Pharmaceutica Sinica
摘 要:用白细胞介素6(interleukin6,IL6)依赖细胞株B9的MTT法,研究了4种刺激剂PMA,A23187,fMLP和LPS对小鼠腹腔巨噬细胞生成及分泌IL6的影响。分别检测了巨噬细胞培养上清液及胞溶部分IL6的含量。结果表明,PMA(01~10μmol·L-1),A23187(001~1μmol·L-1),fMLP(0025~25μmol·L-1)均能促进巨噬细胞生成及分泌IL6,且有量效关系。LPS(01~10μg·ml-1)能增加巨噬细胞培养上清液中IL6的含量,但对胞溶部分无影响。结果提示:巨噬细胞IL6的生成及分泌与蛋白激酶C(PKC)和钙离子通道活化有关;In this paper, a bioassay method involving the interleukin 6 dependent murine hybridoma B9 cell line was used to detect the level of released and cellassociated interleukin 6 in resident peritoneal macrophages from the mouse. The phorbol ester, phorbol 12myristate 13acetate(PMA), the calcium ionophores A23187, the chemotactic peptide fMLP and lipopolysaccharide(LPS) were introduced in these experiments as stimulators. PMA, A23187 and fMLP were shown to induce a dosedependent increase of both released and cellassociated interleukin 6, whereas, LPS caused increase of interleukin 6 activity in supernatants of cultured peritoneal macrophages of the mouse. The effects of PMA and A23187 suggested that the pathway of PKC and calcium is involved in the production and secretion of interleukin 6. The effects of fMLP and LPS provided evidence that they participated in the process of inflammation. The difference between LPS and the other three stimulators in cellassociated interleukin 6 activity might suggest a different mechanism of actions of generation of interleukin 6.
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