Syngeneic and allogeneic fetal liver stem cell transplantation in the treatment of mouse hepatic cirrhosis

Han Bo; Xu San-rong; Zhang Jin; Zhou Qing; Li Wei

doi:10.3969/j.issn.2095-4344.2013.36.015

Abstract：BACKGROUND:Immunity of fetal liver stem cel transplantation is rarely reported, syngeneic and al ogeneic fetal liver stem cel transplantation in the treatment of hepatic cirrhosis is stil unclear. <br> OBJECTIVE:To observe the therapeutic effects of syngeneic and al ogeneic fetal liver stem cel transplantation on hepatic cirrhosis as wel as immune rejections during the therapeutic process. <br> METHODS:The fetal liver stem/progenitor cel s from BALB/c and C57BL/6 mice were isolated and purified by the type IV col agen enzyme digestion method. A total of 104 healthy BALB/c mice were randomly assigned to four groups. Normal control group:no treatment;Hepatic cirrhosis group, syngeneic transplantation group and al ogeneic transplantation group:16 weeks after hepatic cirrhosis models of mice were developed by intraperitoneal injection with carbon tetrachloride, physiological saline, syngeneic fetal liver stem cel s and al ogeneic fetal liver stem cel s were injected via the caudal vein. Final y, the survival statuses, liver function, hepatic fibrosis index, the number and ratio of immune cel s (CD4+T, CD8+T, NK, NKT) and histopathologic examinations were compared in each group after transplantation 4 weeks. <br> RESULTS AND CONCLUSION:The survival rates in the two transplantation groups were both 100%, which was significantly higher than that in the hepatic cirrhosis group (67%, P<0.05). The liver function and liver fibrosis index in each group did not show statistical differences (P>0.05). Immunological tests showed no difference between groups (P>0.05). Pathohistology examination of hepatic tissue repair:Al ogeneic transplantation group>syngeneic transplantation group>hepatic cirrhosis group. Hence, fetal liver stem cel transplantation via the caudal vein could elevate the survival rate of hepatic cirrhosis mice, al eviate the degree of hepatocyte necrosis. There is no immunologic rejection during syngeneic and al ogeneic fetal liver stem cel transplantation that could help to treat hepatic cirrhosis in mice.