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将IL-2与IL-10结合起来,以减轻毒性并增强抗瘤免疫力

Julie J Ahn¹, Steven Dudics¹, David P Langan¹

¹Deka Biosciences, Inc., Germantown, MD, USA.

Cell reports. Medicine

|July 31, 2025

概括

结合介质素-2 (IL-2) 与介质素-10 (IL-10) 预防了抗瘤免疫毒性. 这种新的方法保持了强大的抗瘤活性,没有有害的副作用,提供了更安全的癌症免疫治疗策略.

科学领域:

免疫学免疫学免疫学
在瘤学瘤学.
生物技术是生物技术.

背景情况:

野生型互白素-2 (IL-2) 具有抗瘤免疫力,但引起显著的毒性,主要是血管泄漏综合征 (VLS) 和调节性T细胞 (Treg) 扩张.
之前试图在临床环境中将IL-2的治疗功效与其毒性分开的尝试都没有成功.

研究的目的:

调查是否将IL-2与IL-10结合起来可以减轻IL-2诱导的毒性,同时保持其抗瘤免疫激活能力.
评估一种新的IL-2/IL-10融合分子 (DK2) 针对癌症模型的向传递和疗效.

主要方法:

利用人类初级细胞,小鼠模型和非人类灵长类动物来评估细胞因子相互作用和毒性概况.
采用了一种新型的融合分子,DK2¹⁰,通过抗EGFR单链可变片段 (scFV) 准表皮生长因子受体 (EGFR).
评估了T细胞和自然杀手 (NK) 细胞的激活,干扰素- (IFNγ) 的产生,以及在突变性小鼠瘤模型中的抗瘤功能.

主要成果:

结合IL-2和IL-10可以防止外周炎性毒性和限制Treg积累.
DK2¹⁰证明了T细胞和NK细胞的强烈激活,导致IFNγ依赖的抗瘤作用.
融合分子有效地引起了抗瘤免疫,而没有与传统IL-2疗法相关的剂量限制毒性.

结论:

将IL-2与IL-10结合起来,成功地将毒性与免疫激活脱离,为癌症免疫治疗提供了一个有前途的策略.
DK2融合分子代表了一种新的治疗方法,可以实现强大的抗瘤反应,并改善安全性.
这种方法带来了平衡和热的抗瘤免疫反应,有可能克服当前免疫疗法的局限性.

关键词:

欧洲农业基金会 (EGFR) 是一个基金.IFNγ IFNγ 的意思是在 IL-10 中,IL-10 是 IL-10 的代表.在IL-2中,IL-2被认为是IL-2.T细胞耗尽的情况细胞因子细胞因子细胞因子释放综合征细胞因子释放综合征免疫疗法免疫疗法有针对性的治疗.血管泄漏综合征是什么意思

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