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J Craniofac Surg:新型生物材料支架可用于干细胞来源的软骨细胞的移植

2018-01-20 MedSci MedSci原创

动物模型实验研究为人类再生医学领域带来了许多希望,本研究旨在探究是否可以使用一种新的、容易形成的生物活性玻璃支架移植脂肪源干细胞分化而来的大鼠软骨细胞,并显示免疫组化结果。研究人员从6只雄性Wistar白化型大鼠中提取腹膜内和腹膜后脂肪组织。将脂肪组织样品破碎并孵育。进行软骨分化,对II型胶原、bFGF和Sox-9进行免疫组织化学表征。将分化的软骨细胞植入13-93B3生物活性玻璃支架中并移植到大

动物模型实验研究为人类再生医学领域带来了许多希望,本研究旨在探究是否可以使用一种新的、容易形成的生物活性玻璃支架移植脂肪源干细胞分化而来的大鼠软骨细胞,并显示免疫组化结果。

研究人员从6只雄性Wistar白化型大鼠中提取腹膜内和腹膜后脂肪组织。将脂肪组织样品破碎并孵育。进行软骨分化,对II型胶原、bFGF和Sox-9进行免疫组织化学表征。将分化的软骨细胞植入13-93B3生物活性玻璃支架中并移植到大鼠的右耳中。而对照组中只有生物材料被移植到大鼠的左耳中。

1个月后处死大鼠,行免疫组织化学检查移植区域。左耳对照样本的组织学检查显示生物材料被结缔组织覆盖,其一般结构被保留,支架出现再吸收。在来自右耳的标本中,生物材料被结缔组织覆盖,其结构被保留,生物材料周围存在软骨细胞,免疫组化显示软骨组织的存在。

总之,该研究结果表明,13-93B3生物活性玻璃支架有助于形成新的胶原蛋白和软骨细胞的存活,是一种有前途的新型生物材料,未来将在再生医学领域发挥重要作用。

原始出处:

Gunhan K, Bariskan S, et al., 13-93B3 Bioactive Glass: a New Scaffold for Transplantation of Stem Cell-Derived Chondrocytes. J Craniofac Surg. 2018 Jan;29(1):233-236. doi: 10.1097/SCS.0000000000004037.

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