DCR:脂肪干细胞可减少缺血性结直肠吻合术中的吻合口瘘的发生

2020-09-10 MedSci原创 MedSci原创

结直肠切除吻合术后,吻合口漏(AL)仍然是最严重的术后并发症,发生率从1%到19%不等。

        结直肠切除吻合术后,吻合口漏(AL)仍然是最严重的术后并发症,发生率从1%到19%不等。吻合口漏的危险因素包括男性,年龄大,ASA评分,肾衰竭,类固醇使用,免疫抑制,手术持续时间,术中脓毒症,全结肠切除术与部分结肠切除术,输血和吻合口血供不充分等等。吻合口周围缺血是公认的吻合口漏的危险因素,基于细胞的疗法已被越来越多地被认为是治疗缺血性疾病的新疗法。在这些潜在的细胞来源中,间充质干细胞(MSCs)的研究越来越多,因为它们具有从成年人类供体中分离并维持在细胞培养中的能力,在MSC中,脂肪干细胞(ASC)优于骨髓干细胞。本项研究旨在研究脂肪干细胞在缺血性疾病愈合中的作用。

 

        方法:研究人员首先从健康人体的皮下脂肪中分离出脂肪干细胞,然后将大鼠行开腹手术,构造缺血性结结直肠吻合口模型,动物分为三部分组:具有缺血性吻合口的对照组,仅有局部缺血的用明胶海绵治疗组,以及用可吸收的明胶海绵加脂肪干细胞治疗缺血性吻合口组。在手术后第3天(POD3)和手术后第7天(POD7)处死大鼠。主要观察指标:吻合口出现肠液。

 

        研究结果显示:脂肪干细胞显着减少了吻合口漏的发生,与对照组相比,POD3和POD7的吻合口瘘的发生率明显更少(25%vs. 87.5%,p = 0.02)。单独使用可吸收的明胶海绵不会对吻合口漏的发生产生任何影响,同时,研究人员还发现,经脂肪干细胞处理的动物的血管生成因子(VEGF)表达增加了5.9倍和7.4倍。因此,研究人员最后说道:局部移植的脂肪干细胞可促进缺血肠管的愈合,可能是结直肠手术中减少吻合口漏风险的一种新策略。

 

原始出处:

Morgan, et al. Locally Transplanted Adipose Stem Cells Reduce Anastomotic Leaks in Ischemic Colorectal Anastomoses: A Rat Model. Diseases of the Colon & Rectum.2020.

 

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    2021-11-12 湘雅科教

    已拜读,受益匪浅。

    0

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    2020-09-13 独孤立克

    干细胞是热点,但是进入临床仍然需要时间和临床疗效验证哦

    0

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    2020-09-10 148c6860m17暂无昵称

    脂肪干细胞可减少缺血性结直肠吻合术中的吻合口瘘的发生

    0

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