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时间:2017-12-07
《不同程度间歇低氧对3t3-l1脂肪细胞炎性细胞因子和脂肪因子的影响》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、1142TianjinMedJ,Dec2013,Vol41No12doi:lO.3969~.issn.0253—9896.2013.12.002不同程度间歇低氧对3T3一L1脂肪细胞炎性细胞因子和脂肪因子的影响杨庆婵周芹王彦何庆冯靖弘陈宝元【摘要】目的测定不同程度间歇低氧(IH)处理的3T3一L1脂肪细胞中炎性细胞因子和脂肪因子水平的变化。方法建立阻塞性睡眠呼吸暂停(OSA)模式间歇低氧,再氧合(IH/ROX)细胞模型,将分化成熟的3T3-L1脂肪细胞分为5组,即3个不同程度IH组(5%O,7.5%0,10%0,编号为IH一1
2、,IH-2,IH一3)、持续低氧(10%0,cn)组和正常氧对照(21%o,IN)组。采用ELISA法测定脂肪细胞上清液中肿瘤坏死因子(TNF)-c~、白细胞介素(IL)-6、瘦素和脂联素的水平,Westemblot测定脂肪细胞中低氧诱导因子(HIF)一l仪、葡萄糖转运蛋白(Glut)-I水平,Real—time-PCR~.4定脂肪细胞中HIF—la、Glut一1、TNF一仅、IL一6、瘦素、脂联素的mRNA表达水平。结果IH组和CH组TNF-c~、IL一6和瘦素蛋白及其mRNA水平均高于IN组,IH一1组TNF一0l、IL一
3、6和瘦素蛋白及瘦素mRNA水平高于IH-2、IH一3组(均P4、lammatoryCytokinesandAdipokinesin3T3-L1AdipocytesYANGQingchan,ZHOUQin,WANGYan,HEQing,FENGJing,CHENBaoyuanJGraduateSchoolofTianjinMedicalUniversity,Tianjin300070,China:2EndocrinologyDepartmentofTianjinMedicalUniversityGeneralHospital;3RespiratoryDepartmentofTianjinMe5、dicalUniversityGeneralHospital【Abstract】ObjectiveTostudytheeffectofdifferentdegreesofintermittenthypoxia(IH)oninflammatorycytokinesandadipokinesin3T3一L1adipocytes.MethodsAnintermittenthypoxia/reoxygenation(IH/ROX)fromobstructivesleepapnea(OSA)adipocytemodelwasestabl6、ished.3T3一L1adipocytesweredividedintofivegroups,threeIHgroups(5%02,7.5%02and10%02,referredtoasIH一1,IH一2andIH一3),sustainedhypoxiagroup(10%02,CH)andthenormaloxygencontrolgroup(21%O2,IN).ELISAmethodwasusedtodetectvaluesoftumornecrosisfactoralpha(TNF一),interleukin一6(IL一7、6),leptinandadiponectinincellsupernatant.Westernblotanalysiswasusedtodetectlevelsofhypoxia—induciblefac·tor-1o【(HIF—la)andglucosetransporter一1(Glut一1).RT—PCRassaywasusedtoanalyzeHIF一1,Glut一1,TNF—,IL一6,leptinandadiponectinmRNAexpressionlevelsinadipocytes.ResultsTheex8、pressionlevelsofTNF一仅.IL一6andleptinweresignificantlyhigherinIHandCHgroupsthanthoseofINgroup(P
4、lammatoryCytokinesandAdipokinesin3T3-L1AdipocytesYANGQingchan,ZHOUQin,WANGYan,HEQing,FENGJing,CHENBaoyuanJGraduateSchoolofTianjinMedicalUniversity,Tianjin300070,China:2EndocrinologyDepartmentofTianjinMedicalUniversityGeneralHospital;3RespiratoryDepartmentofTianjinMe
5、dicalUniversityGeneralHospital【Abstract】ObjectiveTostudytheeffectofdifferentdegreesofintermittenthypoxia(IH)oninflammatorycytokinesandadipokinesin3T3一L1adipocytes.MethodsAnintermittenthypoxia/reoxygenation(IH/ROX)fromobstructivesleepapnea(OSA)adipocytemodelwasestabl
6、ished.3T3一L1adipocytesweredividedintofivegroups,threeIHgroups(5%02,7.5%02and10%02,referredtoasIH一1,IH一2andIH一3),sustainedhypoxiagroup(10%02,CH)andthenormaloxygencontrolgroup(21%O2,IN).ELISAmethodwasusedtodetectvaluesoftumornecrosisfactoralpha(TNF一),interleukin一6(IL一
7、6),leptinandadiponectinincellsupernatant.Westernblotanalysiswasusedtodetectlevelsofhypoxia—induciblefac·tor-1o【(HIF—la)andglucosetransporter一1(Glut一1).RT—PCRassaywasusedtoanalyzeHIF一1,Glut一1,TNF—,IL一6,leptinandadiponectinmRNAexpressionlevelsinadipocytes.ResultsTheex
8、pressionlevelsofTNF一仅.IL一6andleptinweresignificantlyhigherinIHandCHgroupsthanthoseofINgroup(P
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