一个整体膜构成性活性肝酶增强了NK细胞的瘤透能力

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Updated: Jun 5, 2025

Transfer of Manipulated Tumor-associated Neutrophils into Tumor-Bearing Mice to Study their Angiogenic Potential In Vivo

Published on: July 20, 2019

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Sofia Liborio-Ramos¹, Isaac Quiros-Fernandez^1,2, Neta Ilan³

¹Targeted Tumor Vaccines Group, Clinical Cooperation Unit Applied Tumor Immunity, German Cancer Research Center (DKFZ), Heidelberg, Germany.

Oncoimmunology

|December 9, 2024

概括

在他们的表面表达肝酶1 (HPSE) 的工程自然杀手 (NK) 细胞显示了瘤透和癌细胞消除的改善. 这种增强有望促进固体瘤的采用细胞免疫疗法.

科学领域:

免疫学免疫学免疫学
在瘤学瘤学.
生物化学生物化学

背景情况:

免疫细胞透到固体瘤中对于癌症根除和采用细胞免疫治疗至关重要.
瘤细胞外基质 (ECM) 富含硫酸肝素 (HS) 蛋白质糖体,是免疫细胞迁移的重要障碍.
肝酶1 (HPSE) 是一种降解HS的酶,其通过瘤细胞的表达可以促进转移.

研究的目的:

为了研究活性,膜结合的HPSE的构成性表达对自然杀手 (NK) 细胞功能的影响.
评估HPSE工程NK细胞在透和消除瘤细胞的疗效,在体外和体内.
评估该策略在改善采用免疫治疗方面的潜力.

主要方法:

生成NK细胞的基因工程,以表达他们的细胞表面上HPSE的仿真,活性形式.
在免疫缺陷小鼠中评估NK细胞透到癌细胞球体和异种移植瘤中的情况.
对瘤生长抑制和潜在副作用的评估.

主要成果:

经过HPSE工程的NK细胞表现出明显增强的透到癌症球状体和异种移植瘤中.
在用HPSE工程NK细胞治疗的小鼠中,瘤生长被显著抑制.
没有观察到明显的副作用.

结论:

在免疫效应细胞,特别是NK细胞表面构成性表达的活性HPSE增强了它们透瘤的能力.
这种方法改善了癌细胞的消除,并抑制了瘤的生长.
使用HPSE对免疫细胞进行工程,为增强针对固体瘤的采用性免疫疗法提供了一个有希望的策略.

关键词:

收养细胞转移收养细胞转移汽车汽车汽车汽车 T细胞受体受体的 T 细胞受体.细胞治疗疗法细胞治疗疗法仿制性抗原受体的仿制性抗原受体肝酶的使用方法免疫疗法免疫疗法自然杀手 (NK) 细胞

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