学科分类
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2 个结果
  • 简介:TheeffectofTPA,apotenttumorpromoter,onSSV-NIH3T3cellsinserum-freemediumwasinvestigated.TPAstimulatedDNAsynthesisofSSV-NIH3T3cellsonthethirddayofcultureinSFM.InSDS-PAGFofmediumconditionedbyTPA-treatedSSV-NIH3T3cells(inSFM+TPA),theamountsoffourproteinsof31.0Kd,28.5Kd,25.5Kdand13.5Kdstrikinglyincreasedoverthatofnon-TPA-treatedcounterpart(inSFM).ThePDGF-likeactivitywasalsodetectedinCMofSFM+TPA.WheninsulinandEGFweredrownofftheSFM+TPA(SFM-Ins-EGF+TPA),TPAlostitsabilitytostimulateDNAsynthesisofSSV-NIH3T3cellsonthethirddayandSDS-PAGEoftheconditionedmediumshowedthattheamountsofthefourproteinsnotedabovegratelyreduced.However,cellsinSFM-Ins-EGF+TPAwereinalmostthesamegrowthconditionascellsincompleteSFM+TPAonthethirddayofculture.Resultswerediscussedinthepaper.

  • 标签: conditioned noted minutes DNA stimulate COUNTERPART
  • 简介:调查在在hypoxic下面的gliomaangiogenesis的受体(u-PA/u-PAR)系统调节的尿激类型plasminogenactivator/urokinase-typeplasminogen的角色的目的,我们在导致的组织缺氧上学习了调节glioma的媒介的效果在人的象endothelial一样ECV304房间增长,apoptosis,在vitro的绳索形成和u-PA/u-PAR表示的变化。方法MTT试金被用来在房间增长检验变化。房间apoptosis被染色的Hoechst33258分析。Matrigel像绳索的形成试金被用来在vitro评估ECV304房间的angiogenesis能力。u-PA/u-PARmRNA的表情被量的即时RT-PCR检测。结果组织缺氧禁止了ECV304房间增长并且导致了房间apoptosis。当不normoxic调节了部分堵住的U251glioma房间的媒介(N厘米)时,Hypoxic调节了媒介(H厘米)ECV304房间增长和apoptosis上的组织缺氧的效果。U251glioma房间的H厘米也支持了在matrigel上播种的ECV304房间的绳索形成。当u-PA或u同等monoclonal抗体被增加进ECV304房间culturing媒介时,绳索形成能力部分被禁止。U251glioma房间的H厘米在ECV304房间导致了uPA和uPAR表示。这些建议那个u-PA/u-PAR系统的结论被hypoxicmicroenviroment涉及gliomaangiogenesistrigged。

  • 标签: ENDOTHELIA GLIOMA 组织缺氧 U-PA u 同等