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生物对等和合成生物学工程细菌外膜囊泡用于增强的光免疫疗法

Guannan Liu¹, Zhengyue Fei², Xinyue Tao³

¹College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Jiangsu Province, China; Jiangsu Synergetic Innovation Center for Advanced Bio-Manufacture, Nanjing Tech University, Jiangsu Province, China.

Acta biomaterialia

|February 25, 2026

概括

携带互白素-2和绿色氨酸的工程细菌外膜囊泡 (OMVs),结合生物对等向,通过改善瘤积累和免疫反应来增强癌症免疫疗法.

科学领域:

生物材料科学生物材料科学
癌症免疫疗法癌症免疫疗法
合成生物学合成生物学
纳米医学是一种纳米医学.

背景情况:

细菌外膜囊泡 (OMVs) 对癌症免疫疗法有希望,但面临着诸如低药物负载,瘤向性差,快速清除等挑战.
这些局限性阻碍了诱导有效的抗瘤免疫力,限制了基于OMV的疗法的临床转化.

研究的目的:

设计一个多功能纳米载体,OMV-mIL2-ICG-DBCO,用于增强癌症免疫治疗.
整合细胞因子输送,光热疗法和生物对等向,以克服OMV的局限性.
为了改善瘤积累,药物加载和抗瘤免疫反应,用于乳腺癌治疗.

主要方法:

通过合成生物学,设计细菌以产生联素-2 (mIL2) 丰富的OMV.
封装的绿色氨酸 (ICG) 通过光热疗法通过电穿孔进入OMV.
利用代谢糖基工程来在瘤细胞上引入亚基 (N3) 和用二子环球氨基酸 (DBCO) 功能化的OMV用于生物直角向.

主要成果:

经过工程设计的OMV-mIL2-ICG-DBCO通过生物对等结合证明了通过生物对等结合改善瘤定位和积累.
实现了强大的光热剥离,诱导免疫性瘤细胞死亡并增强抗原释放.
显著抑制了原发性瘤生长,减少了目标外毒性,激活了强大的抗瘤免疫力.

结论:

开发的生物正向向的光免疫治疗OMV平台有效地增强了抗瘤免疫力.
这种多功能纳米载体代表了乳腺癌治疗的有希望的策略.
该平台提供了一个多功能框架,用于在癌症免疫治疗中设计生物材料.

关键词:

细菌外膜囊泡是一种细菌外膜囊泡.生物对角的生物对角.免疫治疗是一种免疫疗法.介质蛋白-2 介质蛋白-2 的作用.光热疗法是一种光热疗法.

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