人参总皂甙诱导人造血基质细胞表达IL-3的实验研究  

EXPERIMENTAL STUDY FOR THE EFFECT OF TSPG ON THE EXPRESSION OF IL-3 IN HEMATOPOIETIC STROMAL CELLS

作　　者：王璐[1] 王亚平[1] 

机构地区：[1]重庆医科大学组织学胚胎学教研室,重庆400016

出　　处：《解剖学报》2004年第1期49-54,共6页Acta Anatomica Sinica

基　　金：国家自然科学基金资助课题 ( 3 9670 880 )

摘　　要：目的　研究人参总皂甙 (TSPG)对人早期血细胞发生的影响及其机理 ,进一步探讨人参“补气生血”的现代分子生物学机理。　方法　采用造血祖细胞体外培养、造血生长因子 (HGF)生物活性检测、免疫细胞化学、核酸分子原位杂交技术 ,研究TSPG对造血基质细胞表达白细胞介素 3(IL 3)的影响及其机理。　结果　TSPG体外作用能明显促进人早期髓系多向性造血祖细胞 (CFU Mix)的集落形成 ;经TSPG诱导制备的人骨髓基质细胞 (BMSC)、脐静脉内皮细胞株 (EcV30 4 )、单核细胞株 (THP)条件培养液对CFU Mix的增殖分化有明显促进作用 ;经TSPG诱导后BMSC、EcV30 4、THP细胞内IL 3的蛋白及mRNA表达显著提高。　结论　TSPG能促进人早期血细胞的增殖分化 ,其机理可能与TSPG诱导人造血基质细胞表达IL 3有密切关系。Objective Panax ginseng is a well-known Chinese traditional medicine functional in “invigorating qi”,and saponins are one of its main effective fractions.Our study investigates the effect of total saponins of panax ginseng(TSPG)on human hematopoiesis at early stage and its possible regulative mechanism to clarify the hematonic mechanism of Panax ginseng. Methods The techniques of culturing hematopoietic progenitor cells in vitro,bioassay of hematopoietic growth factor(HGF),immunocytochemistry and nucleic acid in situ hybridization were used to study the effect of TSPG on IL-3’s expression in hematopoietic stromal cell and its possible mechanism. Results TSPG directly added into culture system in vitro can markedly increase the colony forming yields of CFU-Mix;the different conditioned culture media prepared with TSPG can promote the proliferation and differentiation of CFU-Mix;the protein and mRNA expression of IL-3 in BMSC and cells of EcV304,THP induced by TSPG has been much intensified.Conclusion TSPG may regulate hematopoiesis at early stage by activating IL-3's gene expression in hematopoietic stromal cell,which is the most important element in hematopietic inductive microenvironment(HIM).

关 键 词：人参总皂甙 诱导 造血基质细胞 表达 IL-3 实验研究 

分 类 号：R331.2[医药卫生—人体生理学]