OBJECTIVE:To study the effect of Lichong Decoction(Lichong Decoction for strengthening anti-pathogenic Qi and eliminating blood stasis) on the expression of insulin-like growth factor-I(IGF-I) and proliferating cell nuclear antigen(PCNA) mRNA in a rat model of uterine leiomyoma.METHODS:Fifty female Wistar rats were randomized into a normal control group,model group,Lichong Decoction group,Guizhifuling Capsule(Capsule containing Cassia Twig and Poria) group,and Mifepristone group.The uterine leiomyoma model was established by peritoneal injections of exogenous estrogen and progesterone hormone.The ultrastructural changes in cells of rat uterine tissues were observed with transmission electron microscopy,and the expression of IGF-I and PCNA mRNA was detected by real-time fluorescent quantitative PCR.RESULTS:Following treatment,cells in the Lichong Decoction group appeared to be arranged normally,the cellular morphology were almost in a normal state,hyperplasia and hypertrophy of the chondriosome was reduced,collagen fibers were arranged in a regular manner,without obvious hyperplasia,and the expression of IGF-I and PCNA mRNA was significantly decreased compared with the model group(P<0.01).CONCLUSIONS:The effect of Lichong Decoction on uterine leiomyoma is related to its function in reducing the expression of IGF-I and PCNA mRNA.
Donghua LiYalan ZhangHongjuan HanJianguo GengXiaolei XieJiubo ZhengYasong WangXiaoli Zou
目的从免疫逃逸角度探讨“扶正祛瘀”中药理冲汤对异种移植子宫肌瘤小鼠吲哚胺-2,3双加氧酶(IDO和叉头状螺旋转录因子3(Foxp3)表达的影响。方法采用完全随机分组法将32只CB-17 Scid雌性小鼠分为正常组、模型组、理冲汤组和阳性药组,每组8只。采用异种移植法制备子宫肌瘤动物模型;造模成功后,理冲汤组给予理冲汤,阳性药组给予米非司酮,正常组和模型组给予等量生理盐水,连续干预4周后进行组织样本采集。通过HE染色观察各组小鼠子宫平滑肌组织病理学改变;采用免疫印迹法检测各组小鼠子宫平滑肌组织中IDO表达含量;采用实时荧光定量PCR检测Foxp3 m RNA的表达含量。结果与模型组比较,理冲汤组小鼠子宫内膜及肌层增厚现象减轻,纤维组织含量较少;理冲汤组小鼠子宫平滑肌组织中IDO、Foxp3 mRNA表达含量较模型组明显降低(P<0.05或P<0.01)。结论理冲汤具有抑制子宫肌瘤发生发展的作用,其药理机制可能与阻断肿瘤免疫逃逸途径相关。
