巨细胞对再生生物材料微环境的免疫调节贡献
Raymond M Wang1, Joshua M Mesfin1, Maria Karkanitsa1
1Shu Chien-Gene Lay Department of Bioengineering, Sanford Consortium of Regenerative Medicine, University of California San Diego, 2880 Torrey Pines Scenic Drive, La Jolla, CA, 92037, USA.
NPJ Regenerative medicine
|September 20, 2023
概括
乳腺细胞对于调节对生物材料的免疫反应至关重要,影响巨细胞的两极分化以修复组织. 它们的缺失会导致免疫系统的调节失调,这凸显了它们在再生医学中的重要性.
科学领域:
- 生物材料科学 生物材料科学
- 免疫学 免疫学 免疫学
- 再生医学是一种再生医学.
背景情况:
- 生物活性免疫调节生物材料可以引导免疫反应进行组织修复.
- 巨细胞和T细胞是已知的调节器,但其他免疫细胞尚未研究.
- 乳腺细胞在生物材料诱导的免疫反应中的作用仍然在很大程度上未被探索.
研究的目的:
- 研究巨细胞在调节免疫反应对脱细胞化生物材料支架的作用.
- 为了确定巨细胞是否会在生物材料的反应中影响巨细胞的两极分化.
- 在没有巨细胞的情况下,检查对生物材料的性别特异性免疫反应.
主要方法:
- 脱细胞化生物材料支架的皮下植入 巨细胞缺乏的小鼠.
- 对巨细胞两极分化的分析 (M1/M2过渡) 作为对支架的反应.
- 收养性转移巨细胞来拯救免疫反应.
- 评估晚期免疫反应中的亲炎性基因表达.
主要成果:
- 巨细胞缺乏导致巨细胞极化失调,阻止了典型的M1到M2过渡.
- 观察到特定于性别的偏差:雌性小鼠表现出早期M2过渡,而雄性小鼠仍然处于促炎M1状态.
- 收养性巨细胞移植恢复了两性正常的免疫反应.
- 雄性小鼠表现出持续的亲炎性基因表达,包括IL-1家族细胞因子,IL-6,警报蛋白和化学因子.
结论:
- 乳腺细胞是对亲再生生物材料的免疫反应的关键调节者.
- 巨细胞以特定性别的方式影响巨细胞的两极分化.
- 了解巨细胞的作用对于设计用于组织再生的有效免疫调节生物材料至关重要.
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