大鼠含抗肝纤维化中药的血清对肝星状细胞的作用

目的：观察抗肝纤维化中药复方“肝纤方”(本单位自拟科研方)对体外培养的大鼠肝星状细胞(HSC)增殖及其胶原合成的影响, 并探讨中药抗肝纤维化研究中的一些血清药理学实验方法。方法： 以16倍、8倍、4倍成人剂量肝纤方水煎液给大鼠灌胃, 于0.5、1、2、4 h后制备两类血清－门静脉血清和下腔静脉血清, 将之作用于从SD大鼠肝脏分离培养的HSC, 以[³H]TdR和[³H]Pro同位素掺入试验测定其对HSC增殖、胶原合成量的影响。结果：灌胃0.5、1、2 h后制备的门静脉和下腔静脉含药血清均能减少[3H]TdR的掺入量(P<0.05);以16倍和8倍成人剂量灌胃制得含药血清的作用强于4倍者(P＜0.05), 但前二者间无明显差异(P＞0.05);灌胃给药后1h制得的含药血清作用最强(P＜0.05)。门静脉含药血清亦能减少[³H]Pro的掺入量, 情况类似于上述对[3H]TdR的作用(P＜0.05);但下腔静脉含药血清无此作用(P＞0.05)。结论： 肝纤方能抑制HSC增殖、减少其胶原合成, 可能是其抗肝纤维化的一些具体作用。

Effect of antifibrotic herb serum on rat hepatic stellate cell proliferation and collagen synthesis

AIM: To investigate the effect of Chinese herbs, Ganxianfang(GXF), on rat hepatic stellate cells (HSC) proliferation and collagen synthesis. METHODS: Two types of herb serum, portal venous serum and circumferential venous serum, were prepared from rats infused intragastrically with 16,8,4 times adult dose of GXF decoction. HSC isolated from rat liver were processed with the above sera in vitro . Then we mensurated the radioactivity of HSC admixed with [ 3H]proline and [ 3H]thymine to judge the effect on proliferation and collagen synthesis of HSC. RESULTS: Both two types of serum collected 0 5, 1, 2 h after intragastrical infusion inhibited HSC proliferation ( P< 0 05), and the serum collected 1 h after intragastrical infusion had the strongest effect ( P< 0 05). Portal serum decreasea collagen synthesis ( P< 0 05), but circumferential serum had no effect ( P> 0 05). CONCLUSION: Inhibition of HSC proliferation and decrease of collagen synthesis may contribute to the GXF antifibrotic action.