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瘤寄存的瘤性细菌通过选择性瘤内血栓和亡引发强大的抗癌作用
Seigo Iwata1, Taisei Nishiyama1, Matomo Sakari1
1Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, Nomi, Japan.
Nature biomedical engineering
|August 5, 2025
概括
一个新的细菌联盟,Proteus mirabilis和Rhodopseudomonas palustris,通过诱导瘤血管崩和亡,显示出强大的抗癌作用. 这种无药疗法在小鼠模型中是安全有效的,提供了一个有前途的新癌症治疗策略.
科学领域:
- 微生物学 微生物学
- 在瘤学瘤学.
- 细菌治疗药物 细菌治疗药物
背景情况:
- 内细菌正在作为一种无药性癌症疗法进行研究.
- 一个特定的细菌联盟被调查其抗瘤潜力.
研究的目的:
- 评估一种新型细菌联盟 (Proteus mirabilis和Rhodopseudomonas palustris) 的抗瘤疗效和安全性,以精确的比例.
- 阐明联盟的抗癌作用背后的机制.
主要方法:
- 细菌联盟的静脉注射给具有免疫能力和免疫缺陷的小鼠模型与人类瘤异种移植.
- 细菌联盟的基因组和表型分析.
- 评估瘤缓解,生存,全身毒性和细胞因子释放综合征.
- 研究瘤内血栓形成,血管缩,死亡和瘤内的细菌增殖.
主要成果:
- 在接受治疗的小鼠中观察到完整的瘤缓解和延长生存,独立于免疫细胞透.
- 没有检测到系统性毒性或细胞因子释放综合征.
- 该联盟诱导了选择性内血栓和血管崩,导致瘤缩.
- 证实了细菌的增殖,生物膜的形成,以及瘤内的直接瘤效应.
结论:
- 一个精确平衡的细菌联盟 (Proteus mirabilis和Rhodopseudomonas palustris) 证明了强大的,安全的,无需药物的抗瘤疗效.
- 该机制涉及诱导内血管崩和亡,具有直接的瘤治疗活性.
- 这种自然协同的,非基因工程的联盟提供了一个自我调节的,瘤向的治疗策略.
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