牛膝多糖对体外培养猪肠上皮细胞增殖的影响
2017-10-12李孟伟陈清华
王 雄,李孟伟,陈清华
(1.湖南农业大学动物科学技术学院,湖南 长沙 410128;2.中国农业科学院广西水牛研究所,广西 南宁 530001)
牛膝多糖对体外培养猪肠上皮细胞增殖的影响
王 雄1,李孟伟2,陈清华1
(1.湖南农业大学动物科学技术学院,湖南 长沙 410128;2.中国农业科学院广西水牛研究所,广西 南宁 530001)
试验旨在研究不同浓度牛膝多糖(Achyranthes bidentata polysaccharides,ABPS)对体外培养的仔猪空肠上皮细胞(IPEC-J2)正常或脂多糖(LPS)诱导的免疫应激模型中细胞增殖的影响。结果表明,正常培养条件下,额外添加1 200 μg/mL浓度的ABPS组在24 h时间点细胞增殖效果显著高于对照组及其他试验组(P<0.05);在48 h和72 h时间点,添加ABPS的所有组细胞增殖效果显著高于对照组(P<0.05)。此外试验通过脂多糖(LPS)诱导建立IPEC-J2免疫应激模型,结果表明,额外添加ABPS的所有组在24 h和72 h时间点,细胞增殖效果显著高于对照组(P<0.05);在48 h时间点,900和1 200 μg/mL ABPS组细胞增殖效果显著高于对照组(P<0.05)。综上所述,ABPS能显著促进正常培养条件下IPEC-J2增殖,也能显著缓解LPS对IPEC-J2增殖的抑制,试验中以添加浓度为1 200 μg/mL的ABPS效果最好。
牛膝多糖;IPEC-J2;LPS;增殖
AbstractThe aim of the present study was to investigate the effect of different concentrations of ABPS on proliferation of piglets jejunum epithelial cells,normal or the immunological stress of lipopolysaccharide in vitro.The results showed that the proliferation of ABPS group at the concentration of 1 200 μg/mL was significantly higher than that of the control and other groups(P<0.05).At 48 h and 72 h,ABPS was added at all time points(P<0.05).In addition,the IPEC-J2 immunosuppressive model was induced by lipopolysaccharide (LPS).The results showed that the cell proliferation was significantly higher in all groups with additional ABPS at 24 h and 72 h(P<0.05)time point,900 and 1 200 μg/mL ABPS group were significantly higher than the control group(P<0.05).In conclusion,ABPS can significantly promote the proliferation of IPEC-J2 under normal culture conditions,and significantly alleviate the inhibition of IPEC-J2 proliferation by LPS.In the study,ABPS with the concentration of 1 200 μg/mL was the best.
Key wordsAchyranthes bidentata polysaccharide;IPEC-J2;LPS;proliferation
牛膝多糖(Achyranthes bidentata polysaccharides,ABPS)是从苋科植物牛膝的根中提取、分离和纯化的水溶性小分子中性多糖[1-2]。ABPS因具有抗肿瘤、抗病毒、抗氧化、增强免疫和降血糖等多种生物学功能,因此逐渐成为当前营养学研究热点[3]。肠道是机体消化和营养吸收的主要器官,参与机体能量代谢调节;也是机体免疫系统的重要组成部分,能阻止病原微生物、代谢废物从肠腔侵入机体[4]。肠上皮细胞位于肠腔表面,是肠黏膜物理屏障的主要组成部分,也能感知和响应微生物刺激来加强其屏障功能,参与和协调适当的免疫应答[5]。……
