石墨碳化物板的生物降解和巨细胞的自诱导
K Swetha1, Anushree Bhatnagar2, Manikrishna Lakavathu1
1School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala P.O., Vithura, Thiruvananthapuram, Kerala 695551, India. rkurapati@iisertvm.ac.in.
Nanoscale
|June 10, 2025
概括
无金属的石墨碳化物 (g-C3N4) 纳米板表现出不同的生物降解性,有孔状结构降解更有效. 多孔的g-C3N4还会诱导自和剂量依赖的亲炎性免疫反应.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 免疫学 免疫学 免疫学
背景情况:
- 无金属的石墨碳化物 (g-C3N4) 在生物医学应用方面表现有前途.
- 生物降解性,免疫调节和自诱导等基本性质对于g-C3N4.4仍然在很大程度上未被探索.
- 了解这些因素对于安全的临床翻译至关重要.
研究的目的:
- 为了研究脱皮和多孔g-C3N4纳米片的生物降解性.
- 评估g-C3N4对巨细胞自和免疫反应的影响.
- 为了评估g-C3N4降解产品的细胞毒性.
主要方法:
- 使用人类髓氧化酶 (hMPO),胡卜氧化酶 (HRP) 和光-芬顿 (PF) 反应进行生物降解分析.
- 使用电子显微镜和光谱技术 (拉曼,XPS,UV-vis,光) 进行降解的表征.
- 通过质谱和细胞毒性评估分析降解副产品;评估RAW264.7巨细胞中自诱导 (LC3蛋白) 和免疫调节 (细胞因子产生).
主要成果:
- hMPO比HRP更有效地降解了g-C3N4,而多孔的g-C3N4显示出比剥皮的g-C3N4.4更高的降解能力.
- 穿孔性g-C3N4诱导的自,由LC3蛋白过度表达证明.
- 皮和多孔的g-C3N4调节的免疫反应,有多孔的薄膜诱导剂量依赖的促炎性细胞因子释放.
结论:
- 多孔的g-C3N4与去皮的对应物相比,具有增强的生物降解性.
- 特别是多孔形式的g-C3N4,可以诱导自和调节免疫反应,强调在生物医学应用中需要仔细考虑.
- 降解产品显示出不同的细胞毒性,需要进一步调查临床安全性.
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