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Updated: Jan 31, 2026
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Murine Hind Limb Long Bone Dissection and Bone Marrow Isolation
Published on: April 14, 2016
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机体化纳米载体工程 (BONE) 通过NIR-II生物成像指导查改善骨髓mRNA输送
Benhao Li1,2, Jianbo Wang3, Yuxiao Peng2
1Laboratory of Advanced Materials, College of Smart Materials and Future Energy (iCOME), Fudan University, Shanghai 200433, China.
Journal of the American Chemical Society
|January 30, 2026
概括
我们开发了一种新的成像指导策略,使用近红外II (NIR-II) 生物成像来设计脂质纳米粒子 (LNP),以有效地将mRNA输送到骨髓. 这种方法增强了骨髓向和转染,克服了传递挑战.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 分子成像学分子成像学
背景情况:
- 有效的mRNA输送到骨髓对于免疫平衡和疾病发病研究至关重要.
- 挑战包括骨 perfusion 不良和限制性血骨髓屏障.
- 目前的查方法缺乏可靠的现场评估.
研究的目的:
- 开发一种用于指导工程和查骨髓向mRNA输送系统的新策略.
- 为了利用NIR-II生物成像进行纳米载体骨的现场评估.
- 为了提高骨髓细胞中mRNA转染效率.
主要方法:
- 使用脂质纳米颗粒 (LNP) 设计的BODIPY-doped纳米载体 (BONE战略).
- 利用NIR-II生物成像进行实时,非侵入性可视化LNP骨定位.
- 选骨LNP用于骨积累和随后的mRNA转染 in vivo.
- 在骨髓中通过流式细胞计分析了髓状细胞群.
主要成果:
- 骨LNP证明了有效的骨髓向和积累.
- 骨-2 LNP在注射后24小时显示了最高的骨积累.
- 骨-2 LNP的偏好定位在髓状细胞 (单细胞,巨细胞,树突细胞) 上.
- 与商业LNP相比,在骨髓mRNA转染方面取得了3.3倍的改善.
结论:
- 骨战略可以有效地将mRNA输送到骨髓.
- NIR-II生物成像为组织特定纳米载体的指导开发和查提供了强大的工具.
- 这种方法为设计向纳米药物提供了一个可通用的框架.
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