Kim Deok-Yeol, Ji Yi-Hwa, Kim Deok-Woo, Dhong Eun-Sang, Yoon Eul-Sik
Department of Plastic and Reconstructive Surgery, Korea University College of Medicine, Seoul, Korea.
Medical Science Research Center, Ansan Hospital, Korea University Medical Center, Ansan, Korea.
J Korean Med Sci. 2014 Nov;29 Suppl 3(Suppl 3):S193-200. doi: 10.3346/jkms.2014.29.S3.S193. Epub 2014 Nov 21.
Traditional adipose tissue transplantation has unpredictable viability and poor absorption rates. Recent studies have reported that treatment with platelet-rich plasma (PRP), adipose-derived stem cells (ASCs), and stromal vascular fraction (SVF) are related to increased survival of grafted adipose tissue. This study was the first simultaneous comparison of graft survival in combination with PRP, ASCs, and SVF. Adipose tissues were mixed with each other, injected subcutaneously into the back of nude mice, and evaluated at 4, 8, and 12 weeks. Human adipocytes were grossly maintained in the ASCs and SVF mixtures. Survival of the adipose tissues with PRP was observed at 4 weeks and with SVF at 8 and 12 weeks. At 12 weeks, volume reduction in the ASCs and SVF mixtures were 36.9% and 32.1%, respectively, which were significantly different from that of the control group without adjuvant treatment, 51.0%. Neovascular structures were rarely observed in any of the groups. Our results suggest that the technique of adding ASCs or SVF to transplanted adipose tissue might be more effective than the conventional grafting method. An autologous adipose tissue graft in combination with ASCs or SVF may potentially contribute to stabilization of engraftment.
传统的脂肪组织移植存在不可预测的存活率和较差的吸收率。最近的研究报告称,富含血小板血浆(PRP)、脂肪来源干细胞(ASC)和基质血管成分(SVF)治疗与移植脂肪组织存活率增加相关。本研究首次同时比较了PRP、ASC和SVF联合使用时移植物的存活率。将脂肪组织相互混合,皮下注射到裸鼠背部,并在4周、8周和12周时进行评估。在ASC和SVF混合物中,人脂肪细胞大体上得以维持。含PRP的脂肪组织在4周时观察到存活情况,含SVF的脂肪组织在8周和12周时观察到存活情况。在12周时,ASC和SVF混合物中的体积减少率分别为36.9%和32.1%,与未进行辅助治疗的对照组的51.0%有显著差异。在任何一组中均很少观察到新生血管结构。我们的结果表明,向移植脂肪组织中添加ASC或SVF的技术可能比传统移植方法更有效。自体脂肪组织移植联合ASC或SVF可能有助于移植的稳定。