中国组织工程研究 ›› 2019, Vol. 23 ›› Issue (10): 1570-1574.doi: 10.3969/j.issn.2095-4344.1632

• 材料生物相容性 material biocompatibility • 上一篇    下一篇

医用可注射羧甲基葡糖胺聚糖防粘连凝胶的生物安全性评价

高 萍1,程 琳1,陈 斌1,李睿智2,李 昕1,史梦柔1,李光远1,程 鹏1,李东风2,于 欢2,王晓辉1   

  1. 1天津市医药科学研究所,天津市 300020;2爱美客技术发展股份有限公司,北京市 100022
  • 收稿日期:2018-11-29
  • 通讯作者: 王晓辉,副研究员,天津市医药科学研究所,天津市 300020
  • 作者简介:高萍,女,1964年生,天津市人,汉族,副研究员,主要从事医用生物材料和毒理学研究。

Biosafety of medical injectable carboxymethyl glycosaminoglycan anti-adhesion gel

Gao Ping1, Cheng Lin1, Chen Bin1, Li Ruizhi2, Li Xin1, Shi Mengrou1, Li Guangyuan1, Cheng Peng1, Li Dongfeng2, Yu Huan2, Wang Xiaohui1   

  1. 1Tianjin Institute of Pharmaceutical Science, Tianjin 300020, China; 2Imeik Technology Development Co., Ltd., Beijing 100022, China
  • Received:2018-11-29
  • Contact: Wang Xiaohui, Associate researchers, Tianjin Institute of Pharmaceutical Science, Tianjin 300020, China
  • About author:Gao Ping, Associate researcher, Tianjin Institute of Pharmaceutical Science, Tianjin 300020, China

摘要:

文章快速阅读:

 

文题释义:
防粘连凝胶:适用于预防妇产科、普通外科、骨外科、泌尿外科等术后的粘连,在遇到组织液后自动固化成膜,具有良好的生物相容性和柔韧性,通过膜的“屏障”作用及膜的降解与术后粘连形成的时差作用,将手术创面和周围组织隔离开,并在降解后成为微小的间隙,能够阻止周围组织中成纤维细胞对手术创面的入侵,避免它们直接接触产生粘连。
生物安全性:指所有材料设备、过样或系统对宿主不引起明显的临床反应,即无大血栓形成、无毒性、无过敏或炎症反应、无破坏血细胞作用。目前,与人体直接或者间接接触的医疗器械约占整个医疗器械市场的50%,所以其重要性已备受关注。
 
 
背景:前期研究制备的可注射羧甲基葡糖胺聚糖防粘连凝胶结合了防粘连膜和防粘连液的优点,于较短时间内可在原位形成形状柔软的凝胶,不受体位影响,可承受周围组织的压力且自身无压迫作用。
目的:评价医用可注射羧甲基葡糖胺聚糖防粘连凝胶的生物相容性。
方法:以对数生长期的L929细胞为受试细胞,采用MTT法检测可注射羧甲基葡糖胺聚糖防粘连凝胶浸提液的细胞毒性;以日本大耳兔为受试动物,进行可注射羧甲基葡糖胺聚糖防粘连凝胶浸提液的皮内刺激实验;以豚鼠为受试动物,进行可注射羧甲基葡糖胺聚糖防粘连凝胶浸提液的皮内诱导与局部诱导迟发型超敏反应实验;以Wistar大鼠为受试动物,进行可注射羧甲基葡糖胺聚糖防粘连凝胶浸提液的亚慢性毒性实验。

结果与结论:可注射羧甲基葡糖胺聚糖防粘连凝胶浸提液的细胞毒性为1级,符合标准要求;可注射羧甲基葡糖胺聚糖防粘连凝胶浸提液无潜在皮内刺激作用、无潜在皮肤致敏性;亚慢性毒性实验中,对大鼠连续尾静脉注射28 d的可注射羧甲基葡糖胺聚糖防粘连凝胶浸提液,大鼠体质量、血液学、凝血功能、血液生化学和脏器病理均未见明显的亚慢性全身毒性反应;结果表明,可注射羧甲基葡糖胺聚糖防粘连凝胶具有良好的生物安全性。

ORCID: 0000-0003-3275-8396(高萍)

 

关键词: 防粘连凝胶, 生物安全性, 羧甲基葡糖胺聚糖, 浸提液, 可注射防粘连胶, 迟发型超敏反应

Abstract:

BACKGROUND: The injectable carboxymethyl glycosaminoglycan anti-adhesion gel prepared in the previous study combines the advantages of anti-adhesion membrane and anti-adhesion liquid. It can form soft gel in situ in a relatively short time, which is not affected by body position, bear the pressure of surrounding tissues and can be used without compression.

OBJECTIVE: To evaluate the biocompatibility of medical injectable carboxymethyl glycosaminoglycan anti-adhesion gel.           
METHODS: Logarithmic growing L929 cells were used as test cells, and the cytotoxicity of injectable carboxymethyl glycosaminoglycan anti-adhesion gel extract was detected by MTT method. The intradermal stimulation test of injectable carboxymethyl glycosaminoglycan anti-adhesion gel extract was carried out in Japanese big ear rabbits. Guinea pigs were used as experimental animals to carry out intradermal induction and local induced delayed hypersensitivity test of injectable carboxymethyl glycosaminoglycan anti-adhesion gel extract. Wistar rats were used as experimental animals to carry out the subchronic toxicity test of injectable carboxymethyl glycosaminoglycan anti-adhesion gel extract.          

RESULTS AND CONCLUSION: The cytotoxicity of injectable carboxymethyl glycosaminoglycan anti-adhesion gel extract was grade 1, meeting the standard requirements. Injectable carboxymethyl glycosaminoglycan anti-adhesion gel extract had no potential intradermal stimulation and no potential skin sensitization. In the subchronic toxicity test, the rats were subjected to the tail vein injection of injectable carboxymethyl glycosaminoglycan anti-adhesion gel extract for 28 continuous days, and there was no obvious subchronic systemic toxicity in body mass, hematology, coagulation function, blood biochemistry and visceral pathology. These results indicate that the injectable carboxymethyl glycosaminoglycan anti-adhesion gel has good biosafety.

 

Key words: Materials Testing, Gels, Tissue Adhesions, Tissue Engineering

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