中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (11): 1706-1710.doi: 10.3969/j.issn.2095-4344.1095

• 皮肤粘膜组织构建 skin and mucosal tissue construction • 上一篇    下一篇

梯度低温保存脂肪颗粒作为皮下填充物的可行性

郑万玲1,张爱君2,王  浩1,王苹苹1,李健华1,温敏敏1,金培生2   

  1.  (1徐州医科大学研究生院,江苏省徐州市  221002;2徐州医科大学附属医院整形外科,江苏省徐州市  221000)
  • 收稿日期:2018-11-09 出版日期:2019-04-18 发布日期:2019-04-18
  • 通讯作者: 金培生,博士,教授,主任医师,博士生导师,徐州医科大学附属医院整形外科,江苏省徐州市 221000
  • 作者简介:郑万玲,女,1993年生,安徽省合肥市人,汉族,徐州医科大学在读硕士,医师,主要从事冻存脂肪的临床应用研究。
  • 基金资助:

    国家自然科学基金(81571901),项目负责人:金培生 

Feasibility of fat particles cryopreserved for different time for use as subcutaneous fillers 

Zheng Wanling1, Zhang Aijun2, Wang Hao1, Wang Pingping1, Li Jianhua1, Wen Minmin1, Jin Peisheng2   

  1.  (1Graduate School, Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China; 2Department of Plastic Surgery, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, Jiangsu Province, China)
  • Received:2018-11-09 Online:2019-04-18 Published:2019-04-18
  • Contact: Jin Peisheng, MD, Professor, Chief physician, Doctoral supervisor, Department of Plastic Surgery, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, Jiangsu Province, China
  • About author:Zheng Wanling, Master candidate, Physician, Graduate School, Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81571901 (to JPS)

摘要:

文章快速阅读:

文题释义:
自体脂肪移植:是吸出自身腰、腹、大腿等部位多余脂肪,采用尖端绿色离心、提纯、净化处理后,选择完整的脂肪细胞颗粒,提高脂肪细胞成活率,采用精细联合化注射技术,多层次多点进行太阳穴、苹果肌、面颊等面部填充/除皱/塑形。
低温保存:在低温(如液氮,-70至-80 ℃深低温冰箱)保藏生物体的技术。尤其是细菌、真菌和酵母等可用此法贮存、培养收集物。
摘要
背景
:在不添加保护剂的情况下,通过适宜冻存方法长期低温保存的多余脂肪组织能否直接二次移植,并达到较好的填充效果,是一项值得研究的课题。
目的:应用梯度低温保存的脂肪颗粒作为皮下填充物的移植效果,探讨其临床应用的可行性。
方法:将人抽脂获取的脂肪颗粒在不添加保护剂的情况下,经梯度降温置于-80 ℃冰箱行冷冻保存,实验分组新鲜脂肪、冻存1个月组、冻存3个月组、冻存6个月组。8-10周龄SPF级裸鼠12只,体质量约        20 g,由徐州医科大学实验动物中心提供。将各组脂肪颗粒同期植入裸鼠背部皮下,移植后第4,8周取出样本,比较各组移植物大体外观、质量、体积变化;通过细胞提取、MTT检测、苏木精-伊红及免疫组织化学染色,观察比较脂肪组织的成活情况。
结果与结论:经梯度低温保存后的脂肪颗粒在移植取出后均有脂肪细胞存活,且胞间可见新生血管生成。其中冻存6个月的脂肪颗粒移植效果甚至优于冻存1、3个月的脂肪。说明通过适宜的冻存步骤,未添加冷冻保护剂的脂肪颗粒经梯度低温保存可安全移植于生物体,并达到较满意的填充效果。

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程
ORCID: 0000-0002-0269-5040(金培生)

关键词: 脂肪颗粒, 低温保存, 梯度低温保存, 冷冻保护剂, 皮下填充物, 脂肪颗粒, 脂肪移植物

Abstract:

BACKGROUND: In the case of not adding protective agent, whether excessive adipose tissue cryopreserved for long time can be used for the second transplantation and achieve good filling effect is worthy to be investigated.
OBJECTIVE: To investigate the transplantation effect of fat particles cryopreserved for different time, and the feasibility of clinical application.
METHODS: Without addition of protectant, fat particles were cryopreserved at a final temperature of -80℃. There were four groups: fresh fat, cryopreservation for 1, 3, and 6 months groups. Twelve 8-10-week-old SPF nude mice weighting 20 g provided by the Laboratory Animal Center of Xuzhou Medical University were included in this study. After cryopreserved for different time, fat particles were separately implanted into the back of nude mice. Tissue samples were removed at 4 and 8 weeks after transplantation. Appearance, weight, and volume of graft were compared among groups. The survival of fat tissue was determined by MTT assay, hematoxylin-eosin staining and immunohistochemical staining.
RESULTS AND CONCLUSION: After transplantation of cryopreserved fat particles, there were surviving adipocytes, and new blood vessels were observed between cells. The transplantation effect of fat particles cryopreserved for 6 months was superior to that of fat particles cryopreserved for 1 and 3 months. Therefore, fat particles cryopreserved for different time without addition of protectant can be transplanted without safety concern, which can obtain satisfactory filling outcomes.

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程

Key words: Adipose Tissue, Cryopreservation, Transplantation, Tissue Engineering

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