il18il18bp对肝癌进展与转移作用的探讨-study on the effect of il 18 il 18 bp on the progression and metastasis of hepatocellular carcinoma.docx
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il18il18bp对肝癌进展与转移作用的探讨-study on the effect of il 18 il 18 bp on the progression and metastasis of hepatocellular carcinoma
中文摘要IL-18/IL-18BP对肝癌进展与转移作用的探讨通过胆汁排泄的,血清中IL-18水平直接受肝功能状态的影响,IL-18可作为肿瘤预后的评估指标。在体内肿瘤免疫环境中,IL-18对VEGF有抑制作用,能够抑制血管生成与肿瘤生长。IL-18对不同种类MMPs产生的作用不同,在肿瘤与非肿瘤环境中对MMPs产生的作用可能也不同。2、IL-18BP不仅受il-18水平影响,通过抑制IL-18发挥功效,可能还协同血管生成,促进原发性肝癌发展与转移。IL-18BP可能直接参与促进肿瘤转移的过程,不仅通过促进肿瘤血管增殖,还可能通过MMP3/MMP9等基质金属蛋白酶促进肿瘤转移。3、IL-18与IL-18BP虽然在占位组织内分泌部位不同,但占位刺激可以同时促进血清IL-18及IL-18BP的分泌,两者在血清与组织内表达均关系紧密。关键词原发性肝癌;白介素18;白介素18结合蛋白;血管内皮生长因子;金属基质蛋白酶作者:俞喆珺指导教师:吴建成IL-18/IL-18BP对肝癌进展与转移作用的探讨英文摘要ToinvestigatetherolemechanismofIL-18/IL-18BPondevelopmentandtransferinhepaticcarcinomaAbstractObjective:Toexplorethesignificanceofinterleukin-18(IL-18)andinterleukin-18bindingprotein(IL-18BP)inthedevelopment,transferandtreatmentofhumanhepaticcarcinoma,wefindtheinterrelationshipbetweenIL-18/IL-18BPandmatrixinliveraswellasthatbetweenIL-18/IL-18BPandbloodvesselthroughclinicalandanimalexperiments.Method:PlasmalevelsofIL-18,IL-18BPandvascularendothelialgrowthfactor(VEGF)weremeasuredin66patientswithPHC,23patientswithnon-cancerousliverlesionsand30healthycontrolsbyELISA.ThecorrelationofserumIL-18,IL-18BPandVEGFlevelsbeforeandaftersurgerywereanalyzed.SMMC7721humanhepatomacellswereinoculatedsubcutaneouslyintonudemice.Aftertumorformation,The20micewererandomlydividedintotwogroups,ThenudemiceofExperimentalgroupreceivedintraperitoneallyinjectedIL-18treatmenteverydayandcontrolgroupmicedailyinjectionsofsaline,continuoustreatmentfor30days.Attheendof30consecutivedaysaftertreatment,allnudemicewerekilledandtheirtumorweretakenandkeptforfurthertest.TheexpressionanddistributionofIL-18,IL-18BP,VEGFandMatrixmetalloproteinases(MMPs)incarcinogenicmiceandhealthycontrolsweredetectedbySPImmunohistochemistry.Results:1.PlasmalevelsofIL-18,IL-18BPandVEGFinpatientswithPHCandnon-cancerousliverlesionswerehigherthanhealthycontrolsbeforeandafteroperation(P0.05).InthegroupsofPHCandnon-cancerousliverlesions,patientswithcirrhoticsplenomegalyhadhigherplasmalevelsofIL-18BP(P0.05),patientswithliverdysfunctionhadhigherplasmalevelsofIL-18(P0.05).Moreover,inthetwogrou
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