LI Fan, et al. Identification and analysis of membrane estrogen receptor in inters titial cells of Cajal[J]. Journal of Chongqing Medical University, 2009,34(5):590-593.
LI Fan, et al. Identification and analysis of membrane estrogen receptor in inters titial cells of Cajal[J]. Journal of Chongqing Medical University, 2009,34(5):590-593.DOI:
ICC细胞膜上存在雌激素作用位点;放射性配体结合分析及Scatchard分析证实ICC细胞膜雌激素受体的的受体最大容量(Bmax)为45.75fmol/mg protein
平衡解离常数(kD)为0.7173nmol/L。结论:ICC表达mER
该受体可能介导雌激素对ICC的快速非基因组作用。
Abstract
Objective:To detect and analyze the membrane estrogen receptor(mER)in primary cultured interstitial cells of Cajal(ICC).Methods:Interstitial Cells of Cajal(ICC)’s surface binding sites for 17-βestradiol(E2)were detected by cell-impermeant ligand using confocal microscopy.Radioligand binding assay and Scatchard software were used to analyzed the characteristics of mER.Results:Immunofluorescence shows the staining pattern of nonfixed
nonpermeabilized ICC incubated with E2BSAFITC.The radioligand binding assay were analyzed by Scatchard software
The Bmax of mER was 45.75 fmol/mg protein and the kD was 0.717 3 nmol/L.Conclusion:A form of the estrogen receptor is present within the cell membrane of ICC and maybe capable of mediating rapid effect of estrogen.
关键词
雌激素膜受体Cajal间质细胞雌激素
Keywords
EstrogenMembrane estrogen receptorInterstitial cells of Cajal