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《5-氨基酮戊酸光动力疗法对体外培养的增生性瘢痕成纤维细胞生长和增殖影响的初步研究》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、中国美容医学2013年12月第22卷第24期ChineseJournalofAestheticMedicine.Dec.2013.Vo1.22.No.242365·基础研究··论著·5一氨基酮戊酸光动力疗法对体外培养的增生性瘢痕成纤维细胞生长和增殖影响的初步研究钱革,冉昕,邱建文,周晨曦,吴剑波:,邓丹琪(1.昆明医科大学第二附属医院皮肤风湿科云南昆明6501O1;2.武汉大学中南医院皮肤性病科)[摘要]目的:探讨5一氨基酮戊酸光动力疗法(ALA-PDT)对体外培养的增生性瘢痕组织的成纤维细胞生长和增
2、殖的影响,观察细胞的形态学及超微结构的变化,并探讨可能的机制。方法:采用四甲基偶氮唑盐(MTT)比色法检测ALA,激光照射对体外培养的成纤维细胞增殖的影响;lmmol/L的ALA接受在不同的时间激光照射对成纤维细胞增殖的影响;在光镜和电镜下观察ALA-PDT对细胞形态和超微结构的影响;用分光光度法检测ALA—PDT对细胞氧自由基含量、超氧化物歧化酶活性的影响。结果:单一的激光照射对成纤维细胞的生长没有影响;1、10、10。和103mmol/L的ALA对细胞生长有一定的抑制作用(P3、/L的ALA接受20min、40min和60min激光照射后细胞的增殖明显下降(P<0.05),呈时间依赖关系;ALA-PDT作用于细胞后,细胞体积变大,正常的细胞连接消失,细胞内的线粒体减少、体积增大,内质网呈空泡化;ALA—PDT作用于细胞后,细胞ROS含量升高,SOD活性降低(P<0.05)结论:ALA—PDT对体外成纤维细胞具有明显的损伤作用,对细胞的增殖和生长有一定的抑制作用;其作用机制可能与ALA-PDT对细胞的氧化损伤有关。[关键词]5一氨基酮戊酸光动力疗法;成纤维细胞;增生性瘢痕[中图4、分类号]R619.6[文献标识码]A[文章编号]i008—6455(2013)24-2365-04Efectsof5-AminolaevulinicaacidphotodynamictherapyoncellgrowthandproliferationoffibroblastinvitroofhypertrophicscarQIANGe1,RANXin1,QIUJian—wen~,ZHOUChen—xi1,WUJian—bo2,DENGDan—qi’(1.DepartmentofDermatology5、,theSecondAffiliatedHospitalofKunmingMedicalUniversity,Kunming650101,Yunnan,China;2.DepartmentofDermatology,ZhongnanHospitalofWuhanUniversity)Abstract:ObjectiveToinvestigatetheeffeclof5-aminolaevulinicacidphotodynamictherapy(ALA—PDT1ongrowthandprolifera6、tionoffibroblastofhypertrophicscarinvitroanditspossiblemechanism.MethodsTheeffectofALA—PDTonfibroblastactivitieswasdeterminedbvMTTassay.ThemorphologicalandultrastructurechangesoffibroblastsexposedlOALA—PDTwereobservedwithinvertmicroscopeandtransmissione7、lectronmicroscope.Thecontenlofreactiveoxygenspecies(ROS)incellsandactivitiesOfsuperoxidedismutase(SOD)incellsweredeterminedbyspectrophotometricmethod.ResultsTheproliferationOffibroblastswasinhibitedbyALA—PDT.AfterALA—PDT,thefibroblastsdisplayedtypicalmo8、rphologicalandultrastructurechangesofcelldamage.AfterALA—PDT.thecontentOfROSsignificantlyincreased,whiletheactivitiesOfSODdecreased(bothP<0.05).ConclusionALA—PDTcaninhibittheproliferationandgrowthOftheskinfibroblasts.Furthermore.
3、/L的ALA接受20min、40min和60min激光照射后细胞的增殖明显下降(P<0.05),呈时间依赖关系;ALA-PDT作用于细胞后,细胞体积变大,正常的细胞连接消失,细胞内的线粒体减少、体积增大,内质网呈空泡化;ALA—PDT作用于细胞后,细胞ROS含量升高,SOD活性降低(P<0.05)结论:ALA—PDT对体外成纤维细胞具有明显的损伤作用,对细胞的增殖和生长有一定的抑制作用;其作用机制可能与ALA-PDT对细胞的氧化损伤有关。[关键词]5一氨基酮戊酸光动力疗法;成纤维细胞;增生性瘢痕[中图
4、分类号]R619.6[文献标识码]A[文章编号]i008—6455(2013)24-2365-04Efectsof5-AminolaevulinicaacidphotodynamictherapyoncellgrowthandproliferationoffibroblastinvitroofhypertrophicscarQIANGe1,RANXin1,QIUJian—wen~,ZHOUChen—xi1,WUJian—bo2,DENGDan—qi’(1.DepartmentofDermatology
5、,theSecondAffiliatedHospitalofKunmingMedicalUniversity,Kunming650101,Yunnan,China;2.DepartmentofDermatology,ZhongnanHospitalofWuhanUniversity)Abstract:ObjectiveToinvestigatetheeffeclof5-aminolaevulinicacidphotodynamictherapy(ALA—PDT1ongrowthandprolifera
6、tionoffibroblastofhypertrophicscarinvitroanditspossiblemechanism.MethodsTheeffectofALA—PDTonfibroblastactivitieswasdeterminedbvMTTassay.ThemorphologicalandultrastructurechangesoffibroblastsexposedlOALA—PDTwereobservedwithinvertmicroscopeandtransmissione
7、lectronmicroscope.Thecontenlofreactiveoxygenspecies(ROS)incellsandactivitiesOfsuperoxidedismutase(SOD)incellsweredeterminedbyspectrophotometricmethod.ResultsTheproliferationOffibroblastswasinhibitedbyALA—PDT.AfterALA—PDT,thefibroblastsdisplayedtypicalmo
8、rphologicalandultrastructurechangesofcelldamage.AfterALA—PDT.thecontentOfROSsignificantlyincreased,whiletheactivitiesOfSODdecreased(bothP<0.05).ConclusionALA—PDTcaninhibittheproliferationandgrowthOftheskinfibroblasts.Furthermore.
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