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《不同程度烫伤应激对大鼠皮下移植瘤生长的影响.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、·14·InfectInflammRep,Vo1.13,No.1,March2012·论著·不同程度烫伤应激对大鼠皮下移植瘤生长的影响曹卫刚邱宝安(1.南方医科大学研究生学院,广东广州510515;2.海军总医院,北京100048)【摘要】目的:探讨应激反应对大鼠皮下移植瘤生长的影响。方法:将大鼠乳腺癌细胞Walker-256癌细胞株注入Wistar幼鼠腹腔,5d后抽取腹水,浓缩,经Wistar大鼠腹股沟皮下接种,建立Wistar大鼠皮下移植瘤模型。选取24只荷瘤大鼠,随机分为实验对照组(未烫伤)、轻度烫伤组(1OTBSA,100℃水中烫伤5s)、重度烫伤组(15
2、%TBSA,100℃水中烫伤10s),每组8只。烫伤后12h尾静脉取血,ELISA法检测血白细胞介素一1B(IL-lp水平,放射免疫法测定血清皮质醇水平;烫伤后1、7、13d测定皮下肿瘤体积,伤后13d进行肿瘤的病理学观察。结果:烫伤后大鼠血浆IL一1G水平较实验对照组[(5.O1±2.51)pg/m1]明显升高(P3、度烫伤组[(115.78土17.42)t~g/L]较轻度烫伤组[(87.19±13.28)~g/L]升高更加明显(P0.05);烫伤后7d和13d,对照组与轻度烫伤组肿瘤体积差异无显著性(P>0.05),重度烫伤组肿瘤体积明显大于实验对照组和轻度烫伤组(P<0.05)。病理学观察显示,烫伤组肿瘤细胞密度均较实验对照组大;各组均有纤维组织增生和炎细胞浸润,尤以重度烫伤组为甚。结论:重度烫伤后应激反应促进肿瘤的生长。关键词应激肿瘤烫伤皮质醇白细胞介素一lBEffectofstressofdifferentd4、egreesofscaldonthegrowthofsubcutaneouslytransplantedtumorinratsCaoWeigang,QiuBaoan.GraduateSchoo1ofSouthernMedica1University,Guangzhou510515,G~ang—dong,ChinaCorrespondingauthor:QiuBaoan(E-mail:1uckqiu@medmail.com.cn)Abstract0bjective:Toinvestigatetheeffectsofstressonthegrowthofsubcuta5、neous1ytransplantedtumoraf—terscaldofdifferentdegreesinWistarrats.Methods:TwoWistarimmatureratswereintraperitoneal】yinjectedWalker一256,thecellsofbreastcancerofrats.Ascitesfluidwasacquired5dayslater,andwerecentrifugedtoob—taintheascitestumorcells.SubcutaneoustumormodelinWistarratswasre6、producedbysubcutaneousimplanta—tionofthetumorcellsingroin.Twenty-fourtumorbearingratswererandomlydividedintocontrolgroup(noscald),mildscaldgroup1,scaldat100℃for5secondscovering10totalbodysurfacearea(TBSA)],andseverescaldgroup(scaldat100℃,10secondscovering15TBSA),with8ratsineachgroup.P7、lasmainterleukin一117(IL-lplevelwasmeasuredbyenzyme-linkedimmunoadsorbentassay(ELISA)andserumcortisollevelwasmeas—uredbyradioimmunoassay12hoursafterscaldinjury.Thesizeoftumorwasobservedonday1,7,13,andtumorhistopathologywasexaminedonday13.Results:IL-I~levelinmildscaldgroup[(94.12±15.31)8、pg/m1
3、度烫伤组[(115.78土17.42)t~g/L]较轻度烫伤组[(87.19±13.28)~g/L]升高更加明显(P0.05);烫伤后7d和13d,对照组与轻度烫伤组肿瘤体积差异无显著性(P>0.05),重度烫伤组肿瘤体积明显大于实验对照组和轻度烫伤组(P<0.05)。病理学观察显示,烫伤组肿瘤细胞密度均较实验对照组大;各组均有纤维组织增生和炎细胞浸润,尤以重度烫伤组为甚。结论:重度烫伤后应激反应促进肿瘤的生长。关键词应激肿瘤烫伤皮质醇白细胞介素一lBEffectofstressofdifferentd
4、egreesofscaldonthegrowthofsubcutaneouslytransplantedtumorinratsCaoWeigang,QiuBaoan.GraduateSchoo1ofSouthernMedica1University,Guangzhou510515,G~ang—dong,ChinaCorrespondingauthor:QiuBaoan(E-mail:1uckqiu@medmail.com.cn)Abstract0bjective:Toinvestigatetheeffectsofstressonthegrowthofsubcuta
5、neous1ytransplantedtumoraf—terscaldofdifferentdegreesinWistarrats.Methods:TwoWistarimmatureratswereintraperitoneal】yinjectedWalker一256,thecellsofbreastcancerofrats.Ascitesfluidwasacquired5dayslater,andwerecentrifugedtoob—taintheascitestumorcells.SubcutaneoustumormodelinWistarratswasre
6、producedbysubcutaneousimplanta—tionofthetumorcellsingroin.Twenty-fourtumorbearingratswererandomlydividedintocontrolgroup(noscald),mildscaldgroup1,scaldat100℃for5secondscovering10totalbodysurfacearea(TBSA)],andseverescaldgroup(scaldat100℃,10secondscovering15TBSA),with8ratsineachgroup.P
7、lasmainterleukin一117(IL-lplevelwasmeasuredbyenzyme-linkedimmunoadsorbentassay(ELISA)andserumcortisollevelwasmeas—uredbyradioimmunoassay12hoursafterscaldinjury.Thesizeoftumorwasobservedonday1,7,13,andtumorhistopathologywasexaminedonday13.Results:IL-I~levelinmildscaldgroup[(94.12±15.31)
8、pg/m1
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