Wang Xiao-Ling, Wang Tao, Wang Ya-Ni
Department of Histology and Embryology, College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin.
Zhongguo Zhong Xi Yi Jie He Za Zhi. 2012 Jan;32(1):93-6.
To observe the effects of angelica polysaccharides (APS) on the proliferation of mouse skeletal muscle satellite cells (MSCs) and c-kit expression in different in vitro hematopoietic microenvironments.
MSCs were primarily cultured. The desmin protein was examined by immunohistochemical assay five days later. The MSCs were randomly divided into 8 groups, i. e., the control group, the supernatant from cultured bone marrow stroma cells group, 100, 200, 300 microg/mL APS added in the DMEM/F12 medium experimental groups, and 100, 200, 300 microg/mL APS intervened medium groups. The effects of the proliferation activities of MSCs were detected using MTT method. The c-kit protein of the MSCs was stained by immunohistochemistry.
The desmin protein was positive in the isolated cultured MSCs. Results of MTT method showed the proliferation of MSCs in APS intervened medium groups was significant. The strong positive c-kit immunoreactivity existed in APS intervened medium groups. The strong positive c-kit immunoreactivity was present in the cytoplasmic of the MSCs in the DMEM/F12 medium experimental groups and the APS intervened medium groups.
The APS intervened MSC medium could effectively change the growth properties of MSCs, obviously promote the proliferation of MSCs and c-kit expression. The c-kit protein might play some regulative roles in the proliferation of the MSCs.
观察当归多糖(APS)在不同体外造血微环境下对小鼠骨骼肌卫星细胞(MSCs)增殖及c-kit表达的影响。
原代培养MSCs,5天后采用免疫组织化学法检测结蛋白。将MSCs随机分为8组,即对照组、培养的骨髓基质细胞上清液组、DMEM/F12培养基中添加100、200、300μg/mL APS的实验组以及100、200、300μg/mL APS干预培养基组。采用MTT法检测MSCs的增殖活性,免疫组织化学法检测MSCs的c-kit蛋白。
分离培养的MSCs中结蛋白呈阳性。MTT法结果显示,APS干预培养基组中MSCs的增殖显著。APS干预培养基组中存在强阳性的c-kit免疫反应性。DMEM/F12培养基实验组和APS干预培养基组中MSCs的细胞质中均存在强阳性的c-kit免疫反应性。
APS干预的MSCs培养基能有效改变MSCs的生长特性,明显促进MSCs的增殖及c-kit表达。c-kit蛋白可能在MSCs的增殖中发挥某些调节作用。