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1、大鼠肝细胞与Kupffer细胞共同培养对两者功能和形态影响作者:寇晨光曹成波燕晓雯罗兵周岩冰【摘耍】耳的观察大鼠肝实质细胞与Kupffer细胞体外共同培养吋对两者生长、形态及功能的影响。方法釆用原位二步IV型胶原灌注法>Percol1液密度梯度离心法分离Wistar大鼠肝实质细胞与Kupffer细胞;体外将肝实质细胞与Kupffer细胞按6:1比例共同培养。观察不同情况下肝细胞生存时间和形态,每隔24h检测培养上清液屮清蛋白和谷丙转氨酶(ALT).谷草转氨酶(AST)的水平,并在培养36h用放免法检测上清液中口细胞介素1(IL1)、口细胞介素6(IL6)、肿瘤坏死
2、因子a(TNFa)含量。结果单独培养组肝细胞的生长、增殖迅速,并向止常肝细胞的形态演变,肝细胞可培养存活至15d;共同培养组肝细胞生长增殖缓慢,细胞可培养存活至10do共同培养组上清液中清蛋白水平在24、36、48、60h比单独培养组低(t二2.551〜3.139,P<0.05);ALT.AST水平在24、36、48、60h比单独培养组高(t=2.446-3.108,P<0.05);共同培养组Kupffer细胞保持IL1、IL6、TNFa分泌功能,而单独培养组未检测到IL1、IL6、TNFao结论大鼠Kupffer细胞和肝实质细胞在适宜的培养条件下可进
3、行共同培养,二者可以保持良好的分泌功能,可用于实验研究。【关键词】肝细胞;枯否细胞;共同培养技术;清蛋白类;细胞因子类;大鼠[ABSTRACT]ObjectiveToobservethegrowth,morphology,andfunctionofhepatocyteswhenculturedinvitrowithKupffercelIsinrats・MethodsTnsitucollagenasetwostepperfusionmethodandlowspeedgradientcentrifugtionbypercollfluidwereusedtoisolat
4、eparenchymalhepaticcells(PHC)andKupffercel1sinWistarrat,respective!y.CocultivationofPHCandKupfferce11swasdoneinvitroaccordingto6:lratio.Thelivetimeandformofthecel1sunderdifferentcircumstanceswereobserved・ALTandASTlevelsinculturesupernatantweredetectedat24hourinterval,andtheconcentrati
5、onofIL1,IL6andTNFameasuredbyradioininiunoassayat36hours・ResultsInsolitaryculturegroup,thehepatocytesgrewquicklyanddevelopedtotheformofnormallivercells,whichcouldsurvivel5days;forthoseincoculturegroup,thecel1sgrewandgeneratedslowly,whichsurvivedlOdays.Thelevelsofalbumeninsupernateofcoc
6、ulturegroup,at24h,36h,48hand60h,werelowerthanthatinsolitaryculturegroup(t=2.551-3.139,P<0.05),andthatofALTandAST,atthesametimepointsasabove,werehigher(t=2.446一3・108,P&It;0.05)・Incoculturegroup,thesecretoryfunctionofIL1,IL6,andTNFawasretained,andinsolitaryculturegroup,noTL1,IL6,andT
7、NFaweredetected・ConclusionHepatocytesandKupffercel1sofratcanbeculturedtogetherunderasuitablecondition,andthefavourablesecretoryfunctionofthecellsbemaintainedforempiricalstudy・[KEYWORDS]hepatocyte;Kupffercell;coculturetechnique;albumins;cytokines;rats肝细胞分离、培养是研究肝脏和肝细胞的良好方法。尽管肝细胞在体内拥有相当
8、强的增殖能