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Dohee Lee, Minseok Jeong, Hyeonjae Lee

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

|December 12, 2023

概括

研究人员开发了一种基于细菌的微生物机器人系统 (BBMBR),用于向癌症免疫治疗. 这个系统精确地控制基于细菌的免疫激活剂,将冷瘤转化为热瘤,以提高治疗效率.

科学领域:

生物技术是生物技术.
免疫学免疫学免疫学
纳米技术纳米技术

背景情况:

了解瘤微环境对于癌症治疗,特别是免疫治疗至关重要.
免疫沙漠或感冒瘤表现出下调的T细胞透,限制了治疗的有效性.
将冷瘤转化为热瘤是提高免疫治疗反应的关键策略.

研究的目的:

开发一种基于细菌的微型/生物机器人系统 (BBMBR),用于时空控制免疫增强剂.
研究BBMBR在将冷瘤转化为热瘤方面的潜力.
在癌症治疗中建立局部免疫激活的新框架.

主要方法:

细菌用磁纳米粒子 (MNP) 进行了工程设计,以创建BBMBRs.
磁场被用来控制BBMBRs的空间定位.
通过量化M1-表型巨分化 (CD80染色) 和IL-6水平来评估免疫激活.

主要成果:

生物制造证实了MNP与细菌的成功连接 (75.2%±3.37%的细菌-MNP比率).
BBMBRs通过磁场证明了受控的旋转和转换定位.
磁导BBMBR局部化诱导局部免疫激活,减少M1巨细胞分化和IL-6水平从激活点的距离增加.

结论:

开发的BBMBR系统可以精确控制免疫增强剂的局部化.
这项技术使空间免疫激活策略成为可能,有可能克服治疗感冒瘤的挑战.
BBMBR框架为癌症免疫治疗提供了一个有希望的新范式.

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