Objective To investigate the effect of adipose stromal vascular fraction cells(SVFs)on the survival rate of fat ransplantation.Methods 0.5mL autologous fat tissue was mixed with: ① DiI-labeled autologous SVFs (Group ...Objective To investigate the effect of adipose stromal vascular fraction cells(SVFs)on the survival rate of fat ransplantation.Methods 0.5mL autologous fat tissue was mixed with: ① DiI-labeled autologous SVFs (Group A);②展开更多
Men with diabetic erectile dysfunction （ED） respond poorly to the currently available oral phosphodiesterase-5 inhibitors. Therefore, functional therapies for diabetic ED are needed. Stromal vascular fraction （SVF...Men with diabetic erectile dysfunction （ED） respond poorly to the currently available oral phosphodiesterase-5 inhibitors. Therefore, functional therapies for diabetic ED are needed. Stromal vascular fraction （SVF） and the adenovirus-mediated cartilage oligomeric matrix angiopoietin-1 （Ad-COMP-Angl） gene are known to play critical roles in penile erection. We previously reported that SVF and Ad-COMP-Ang1 have only a short-term effect in restoring erectile function. Further improvements to ED therapy are needed for long-lasting effects. In the present study, we aimed to test if the combination of SVF and Ad-COMP-Ang1 could extend the erection effect in diabetic ED. We found that the combination therapy showed a long-term effect in restoring erectile function through enhanced penile endothelial and neural cell regeneration. Combination therapy with SVF and Ad-COMP-Angl notably restored cavernous endothelial cell numbers, pericyte numbers, endothelial cell-cell junctions, decreased cavernous endothelial cell permeability, and promoted neural regeneration for at least 4 weeks in diabetic mice, In summary, this is an initial description of the long-term effect of combination therapy with SVF and Ad-COMP-Ang1 in restoring erectile function through a dual effect on endothelial and neural cell regeneration. Such combination therapy may have therapeutic potential for the treatment of diabetic ED.展开更多
目的:比较血管基质成分(st romal vascul ar fract i on,SVF)与体外扩增的脂肪来源干细胞(adi pose-deri ved st emcel l s,ASCs)对移植脂肪成活的促进作用。方法:用手术方法切取家兔腹股沟脂肪,进行ASCs体外分离培养;取第3代ASCs分别...目的:比较血管基质成分(st romal vascul ar fract i on,SVF)与体外扩增的脂肪来源干细胞(adi pose-deri ved st emcel l s,ASCs)对移植脂肪成活的促进作用。方法:用手术方法切取家兔腹股沟脂肪,进行ASCs体外分离培养;取第3代ASCs分别进行成脂、成骨诱导实验,CD29和CD31流式鉴定;制备SVF,进行CD29和CD31流式鉴定;脂肪移植裸鼠实验分为3组:SVF、ASCs、和空白对照组(DMEM/F12),每组4只裸鼠,沿背部脊柱两侧对称部位4个移植位点,每组共16个注射移植位点,每点0.3ml脂肪颗粒(adi pose granul e,AG)+0.2ml细胞成分;术后4m时取材称重、固定行HE染色观察移植脂肪组织结构,行CD31免疫组化染色观察新生血管及其密度。结果:家兔ASCs体外分离培养成功,为贴壁生长,第3代细胞形态均呈长梭形。成脂诱导实验油红O染色显示形成脂滴,成骨诱导实验茜素红染色显示形成钙化结节。流式鉴定显示SVF:CD29:17.0%,CD31:1.3%;ASCs:CD29:96.2%,CD31:3.8%。SVF、ASCs和空白对照组各组移植脂肪成活量分别为0.2096±0.0024g,0.1798±0.0033g,0.1350±0.0020g,两两比较差异均有统计学意义,P<0.05。HE染色显示SVF组移植脂肪成活较好,组织结构完整,脂滴大小均一,可见脂肪组织中间有丰富的血管存在;ASCs组移植脂肪成活尚可,组织结构尚完整,脂滴大小一般均一,可见脂肪组织中有结缔组织纤维间隔和新生血管形成;空白对照组结缔组织纤维间隔明显增多,脂滴大小不一,有少量较大空泡形成。各组移植脂肪新生血管密度分别32.6±2.1条/mm2,29.3±1.6条/mm2,23.3±1.9条/mm2,两两比较均有统计学意义,P<0.05。结论:新鲜的干细胞成分SVF比体外扩增的ASCs能更好的促进移植脂肪成活。展开更多
文摘Objective To investigate the effect of adipose stromal vascular fraction cells(SVFs)on the survival rate of fat ransplantation.Methods 0.5mL autologous fat tissue was mixed with: ① DiI-labeled autologous SVFs (Group A);②
基金This study was supported by grants from the National Natural Science Foundation of China （81471452） and Shandong Province Young and Middle-Aged Scientists Research Awards Fund （BS2013SF008） to HRJ.
文摘Men with diabetic erectile dysfunction （ED） respond poorly to the currently available oral phosphodiesterase-5 inhibitors. Therefore, functional therapies for diabetic ED are needed. Stromal vascular fraction （SVF） and the adenovirus-mediated cartilage oligomeric matrix angiopoietin-1 （Ad-COMP-Angl） gene are known to play critical roles in penile erection. We previously reported that SVF and Ad-COMP-Ang1 have only a short-term effect in restoring erectile function. Further improvements to ED therapy are needed for long-lasting effects. In the present study, we aimed to test if the combination of SVF and Ad-COMP-Ang1 could extend the erection effect in diabetic ED. We found that the combination therapy showed a long-term effect in restoring erectile function through enhanced penile endothelial and neural cell regeneration. Combination therapy with SVF and Ad-COMP-Angl notably restored cavernous endothelial cell numbers, pericyte numbers, endothelial cell-cell junctions, decreased cavernous endothelial cell permeability, and promoted neural regeneration for at least 4 weeks in diabetic mice, In summary, this is an initial description of the long-term effect of combination therapy with SVF and Ad-COMP-Ang1 in restoring erectile function through a dual effect on endothelial and neural cell regeneration. Such combination therapy may have therapeutic potential for the treatment of diabetic ED.
文摘目的:比较血管基质成分(st romal vascul ar fract i on,SVF)与体外扩增的脂肪来源干细胞(adi pose-deri ved st emcel l s,ASCs)对移植脂肪成活的促进作用。方法:用手术方法切取家兔腹股沟脂肪,进行ASCs体外分离培养;取第3代ASCs分别进行成脂、成骨诱导实验,CD29和CD31流式鉴定;制备SVF,进行CD29和CD31流式鉴定;脂肪移植裸鼠实验分为3组:SVF、ASCs、和空白对照组(DMEM/F12),每组4只裸鼠,沿背部脊柱两侧对称部位4个移植位点,每组共16个注射移植位点,每点0.3ml脂肪颗粒(adi pose granul e,AG)+0.2ml细胞成分;术后4m时取材称重、固定行HE染色观察移植脂肪组织结构,行CD31免疫组化染色观察新生血管及其密度。结果:家兔ASCs体外分离培养成功,为贴壁生长,第3代细胞形态均呈长梭形。成脂诱导实验油红O染色显示形成脂滴,成骨诱导实验茜素红染色显示形成钙化结节。流式鉴定显示SVF:CD29:17.0%,CD31:1.3%;ASCs:CD29:96.2%,CD31:3.8%。SVF、ASCs和空白对照组各组移植脂肪成活量分别为0.2096±0.0024g,0.1798±0.0033g,0.1350±0.0020g,两两比较差异均有统计学意义,P<0.05。HE染色显示SVF组移植脂肪成活较好,组织结构完整,脂滴大小均一,可见脂肪组织中间有丰富的血管存在;ASCs组移植脂肪成活尚可,组织结构尚完整,脂滴大小一般均一,可见脂肪组织中有结缔组织纤维间隔和新生血管形成;空白对照组结缔组织纤维间隔明显增多,脂滴大小不一,有少量较大空泡形成。各组移植脂肪新生血管密度分别32.6±2.1条/mm2,29.3±1.6条/mm2,23.3±1.9条/mm2,两两比较均有统计学意义,P<0.05。结论:新鲜的干细胞成分SVF比体外扩增的ASCs能更好的促进移植脂肪成活。
