
白细胞介素6对脂多糖诱导所致类子痫前期大鼠有核红细胞的影响
刘丽平1 朱梦妮1 徐慧2*
Effect of interleukin-6 on nucleated erythrocytes in lipopolysaccharide induced preeclampsia rats
LIU Li-ping1 ZHU Meng-ni1 XU Hui2*
目的 探讨白细胞介素(IL)-6对脂多糖(LPS)诱导类子痫前期大鼠有核红细胞的影响。 方法 采用ELISA和免疫组织化学法检测正常妊娠、轻和重度子痫前期患者外周血与胎盘中IL-6的表达;采用流式细胞术和免疫荧光法检测母体有核红细胞比例。SD妊娠大鼠随机分为3组:对照组、LPS组和LPS+anti-IL-6组,检测外周血和胎盘中IL-6、有核红细胞比例、JAK2/MEK和PI3K/Akt信号基因表达。 结果 子痫前期患者的IL-6明显高于正常妊娠者。相比于对照组,LPS组外周血和胎盘中IL-6、有核红细胞比例和JAK2、P85、Akt、P65、IL1B mRNA表达明显增加,胎鼠体重明显降低;相比于LPS组,LPS+anti-IL-6组外周血和胎盘中IL-6表达、有核红细胞比例、JAK2、P85、Akt、P65和IL-1B mRNA表达明显减少。 结论 子痫前期患者外周血和胎盘IL-6上调伴随外周血有核红细胞增多,在体中和IL-6可能通过下调有核红细胞JAK2/PI3K/Akt/NF-κB信号介导的IL-1B表达从而保护类子痫前期大鼠。
Objective To explore the effect of interleukin (IL)-6 on nucleated erythrocytes in lipopolysaccharide (LPS)-induced preeclampsia rats. Methods ELISA and immunohistochemistry were used to detect the IL-6 in peripheral blood and placenta of preeclampsia and normal pregnancy; Flow cytometry and immunofluorescence were used to detect the maternal nucleated erythrocytes. Pregnant SD rats were randomly divided into 3 groups: the control, LPS and LPS +anti-IL-6 group; IL-6, the proportion of nucleated erythrocytes, JAK2/MEK and PI3K/Akt signal-related genes were detected. Results The IL-6 of preeclampsia was higher than that of normal patients. Compared with the Control group, IL-6, the proportion of nucleated erythrocytes and JAK2, P85, Akt, P65, IL-1B mRNA of LPS group increased, the fetal weight decreased; Compared with the LPS group, IL-6, the proportion of nucleated erythrocytes and JAK2, P85, Akt, P65 and IL-1B mRNA of the LPS+anti-IL-6 group decreased. Conclusion The up-regulation of IL-6 of preeclampsia patients is accompanied by increased nucleated erythrocytes in peripheral blood. Neutralizing IL-6 in vivo may down-regulate JAK2/PI3K/Akt/NF-κB-signal-mediated IL-1B to protect preeclampsia rats.
子痫前期 / 白细胞介素6 / 有核红细胞 / 白细胞介素1B / 免疫组织化学 / 免疫荧光 / 人 / 大鼠
Preeclampsia / Interleukin 6 / Nucleated erythrocyte / Interleukin 1B / Immunohistochemistry / Immunofluorescence / Human / Rat
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