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瘤细菌VNP20009表达IFNβ通过重塑瘤微环境来抑制黑色素瘤的进展

Lina Liu¹, Qiang Li¹, Chen Chen¹

¹The State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences; Nanjing University, Nanjing 210023, Jiangsu, China.

|March 21, 2024

概括

这项研究表明,使用瘤向细菌输送干扰素-β (IFNβ) 可以重编程瘤相关性中性粒细胞 (TANs) 来对抗癌症. 这种方法在临床前模型中有效抑制了黑色素瘤的生长和转移.

科学领域:

免疫学免疫学免疫学
在瘤学瘤学.
微生物学微生物学

背景情况:

与瘤相关的中性粒细胞 (TAN) 具有可塑性,在瘤微环境 (TME) 中表现为亲瘤或反瘤.
调节TAN表型为癌症治疗提供了潜在的治疗策略.

研究的目的:

为了研究通过细菌介导的干扰素-β (IFNβ) 输送用于改造TAN和抑制黑色素瘤进展的疗效.
评估在临床前黑色素瘤模型中以表达IFNβ (VNP-IFNβ) 的方式改造的VNP20009的治疗潜力.

主要方法:

使用瘤向细菌VNP20009来提供IFNβ (VNP-IFNβ).
在B16F10肺转移和皮下异种移植模型中进行临床前评估.
评估免疫细胞透,表型和激活,包括中性粒细胞,巨细胞和树突细胞.

主要成果:

在肺转移中,VNP-IFNβ治疗导致了抗瘤原体表型的中性粒细胞和巨细胞的透增加.
增强树突细胞和CD4+T细胞介导的抗瘤免疫反应的激活.
与对照VNP治疗相比,显著抑制黑色素瘤生长和转移.

结论:

通过细菌介导的IFNβ有效地重塑瘤免疫微环境,使其处于抗瘤原生状态.
VNP-IFNβ证明了抑制黑色素瘤进展和转移的治疗潜力.
这一策略通过准免疫细胞可塑性,代表了细菌媒介瘤治疗的进步.

关键词:

癌症癌症癌症癌症免疫学免疫学免疫学微观环境是一个微观环境.

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