浅层电子线放射治疗背部瘢痕疙瘩的体外实验与临床疗效观察(1)
[摘要]目的:探讨瘢痕疙瘩成纤维细胞(Keloid Fibroblast, KFs)对不同剂量浅层电子线照射的生物学反应及术后即时浅层电子线放射治疗瘢痕疙瘩的最佳剂量。方法:以人KFs为研究对象,MTT法观察不同剂量浅层电子线照射对KFs增殖的影响,显微镜观察其形态变化。将120例瘢痕疙瘩患者随机分为四组,术后24h内浅层电子线照射剂量分别为2Gy、2.5Gy、3Gy、4Gy,每日照射1次,共照射6次,总剂量为12~24Gy,随访观察其疗效及不良反应。结果:KFs增殖与浅层电子线照射剂量有关,且照射剂量越大,成纤维细胞活力越低;3Gy连续照射6d(总剂量18Gy)对临床瘢痕疙瘩术后疗效最好。结论:术后联合合适剂量的浅层电子线照射治疗是防治瘢痕疙瘩的可靠方法。
[关键词]瘢痕疙瘩;成纤维细胞;浅层电子线照射治疗;剂量
[中图分类号]R619+.6 [文献标志码]A [文章编号]1008-6455(2018)07-0087-03
, http://www.100md.com
Abstract: Objective Exploration the biology reaction of Fibroblast in prothorax keloid with different doses of shallow electron irradiation and the optimum dose for clinical postoperative instant shallow electron radiotherapy dose for KD. Methods Human keloid fibroblasts are selected as the research object and the effect of different doses on the effect of KFs proliferationwas determined by MTT method, and themorphological changes was observed by microscope; 120 KD patients were divided into four groups and the dose of postoperative shallow electron irradiation within 24 h were 2 Gy,2.5 Gy,3 Gy,4 Gy, respectively. One irradiation a day and the total radiation times is 6, the total dose of 12-24 Gy, and the curative effect and adverse reaction is follow-up observed. Results The proliferation inhibition rate of keloid fibroblasts is associated with shallow electron irradiation dose and the fibroblast proliferation inhibition rate is in proportion to irradiation dose; 3 Gy lasting for six days, namely, the 18 Gy total dose has best curative effect for clinical keloids of postoperative shallow electron radiotherapy. Conclusion Postoperative treatment in combination with appropriate dose of shallow electron irradiation is a reliable method in prevention and therapy of keloid.
, 百拇医药
Key words: keloid; fibroblasts; shallow electron beam radiotherapy; dose
瘢痕疙瘩(keloid)是临床常见的纤维结缔组织增生性疾病,主要表现为皮肤损伤(如创伤、烧伤或手术)愈合过程中成纤维细胞的异常增殖及胶原过度沉积,呈蟹足状并超出原有伤口范围浸润性生长,且常伴有痛痒感和质地的变性[1],给患者带来美容和心理问题,严重影响其美观和生活质量,患者求治心切,对治疗效果的期望值高。单纯手术切除后,瘢痕疙瘩的复发率高达45%~100%[2]。手术切除后早期联合浅层电子线治疗是最常用的方法,然而关于瘢痕疙瘩术后照射使用的射线,剂量分次及总剂量等有较多研究,但意见并不一致,因此建立统一的术后浅层电子线照射标准很有必要[3]。本研究首先观察不同剂量浅层电子线对瘢痕疙瘩成纤维细胞生物学活性的影响,继而将临床患者分为四组,观察术后不同浅层电子线照射剂量对防治后背部瘢痕疙瘩的疗效。
1 资料和方法
, 百拇医药
1.1 临床资料:120例标本取自2009年6月-2014年6月就诊于笔者科室的瘢痕疙瘩住院患者,均为初次就诊,此前未接受过任何治疗,无全身其它器质性疾病,同时经病理诊断确诊为瘢痕疙瘩。其中男32例,女88例,年龄20~40岁(平均年龄23.7岁),大小为1.0cm×0.2cm×1.0cm~6cm×5cm×3cm,病史2~10年,病变均分布在后背部。所有患者均签署知情同意书。
1.2 治疗方法
1.2.1 仪器及试剂:成纤维细胞培养基(Cell Therapy Systems,美国Gibco公司);2.5g/l胰蛋白酶(美国HyClon公司);胎牛血清(FBS,美国Gibco公司);MTT和二甲基亚砜(DMSO)(上海生物工程公司);CO2恒温培养箱(美国thermo公司),FACS Calibur流式细胞仪(美国Becton Dickinson公司);Varian clinic 21EX醫用直线电子照射仪 (美国Varian公司)。, 百拇医药(王文婷 刘涛 宋海峰)
[关键词]瘢痕疙瘩;成纤维细胞;浅层电子线照射治疗;剂量
[中图分类号]R619+.6 [文献标志码]A [文章编号]1008-6455(2018)07-0087-03
, http://www.100md.com
Abstract: Objective Exploration the biology reaction of Fibroblast in prothorax keloid with different doses of shallow electron irradiation and the optimum dose for clinical postoperative instant shallow electron radiotherapy dose for KD. Methods Human keloid fibroblasts are selected as the research object and the effect of different doses on the effect of KFs proliferationwas determined by MTT method, and themorphological changes was observed by microscope; 120 KD patients were divided into four groups and the dose of postoperative shallow electron irradiation within 24 h were 2 Gy,2.5 Gy,3 Gy,4 Gy, respectively. One irradiation a day and the total radiation times is 6, the total dose of 12-24 Gy, and the curative effect and adverse reaction is follow-up observed. Results The proliferation inhibition rate of keloid fibroblasts is associated with shallow electron irradiation dose and the fibroblast proliferation inhibition rate is in proportion to irradiation dose; 3 Gy lasting for six days, namely, the 18 Gy total dose has best curative effect for clinical keloids of postoperative shallow electron radiotherapy. Conclusion Postoperative treatment in combination with appropriate dose of shallow electron irradiation is a reliable method in prevention and therapy of keloid.
, 百拇医药
Key words: keloid; fibroblasts; shallow electron beam radiotherapy; dose
瘢痕疙瘩(keloid)是临床常见的纤维结缔组织增生性疾病,主要表现为皮肤损伤(如创伤、烧伤或手术)愈合过程中成纤维细胞的异常增殖及胶原过度沉积,呈蟹足状并超出原有伤口范围浸润性生长,且常伴有痛痒感和质地的变性[1],给患者带来美容和心理问题,严重影响其美观和生活质量,患者求治心切,对治疗效果的期望值高。单纯手术切除后,瘢痕疙瘩的复发率高达45%~100%[2]。手术切除后早期联合浅层电子线治疗是最常用的方法,然而关于瘢痕疙瘩术后照射使用的射线,剂量分次及总剂量等有较多研究,但意见并不一致,因此建立统一的术后浅层电子线照射标准很有必要[3]。本研究首先观察不同剂量浅层电子线对瘢痕疙瘩成纤维细胞生物学活性的影响,继而将临床患者分为四组,观察术后不同浅层电子线照射剂量对防治后背部瘢痕疙瘩的疗效。
1 资料和方法
, 百拇医药
1.1 临床资料:120例标本取自2009年6月-2014年6月就诊于笔者科室的瘢痕疙瘩住院患者,均为初次就诊,此前未接受过任何治疗,无全身其它器质性疾病,同时经病理诊断确诊为瘢痕疙瘩。其中男32例,女88例,年龄20~40岁(平均年龄23.7岁),大小为1.0cm×0.2cm×1.0cm~6cm×5cm×3cm,病史2~10年,病变均分布在后背部。所有患者均签署知情同意书。
1.2 治疗方法
1.2.1 仪器及试剂:成纤维细胞培养基(Cell Therapy Systems,美国Gibco公司);2.5g/l胰蛋白酶(美国HyClon公司);胎牛血清(FBS,美国Gibco公司);MTT和二甲基亚砜(DMSO)(上海生物工程公司);CO2恒温培养箱(美国thermo公司),FACS Calibur流式细胞仪(美国Becton Dickinson公司);Varian clinic 21EX醫用直线电子照射仪 (美国Varian公司)。, 百拇医药(王文婷 刘涛 宋海峰)
参见:首页 > 医疗版 > 疾病专题 > 整形外科 > 瘢痕