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气体囊泡辅助超声成像用于小鼠模型中抗肿瘤 CAR-T 细胞免疫治疗疗效评估

英文原题:Gas Vesicle-Assisted Ultrasound Imaging for Effective Anti-Tumour CAR-T Cell Immunotherapy Efficacy in Mice Model.

查看英文原题

Gas Vesicle-Assisted Ultrasound Imaging for Effective Anti-Tumour CAR-T Cell Immunotherapy Efficacy in Mice Model.

PubMed 2025/04/16(内容时间) Int J Nanomedicine Q1 · IF 8.7(JCR 2025)

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研究概要

本研究提出了一种在体内追踪 CAR-T 细胞的高效方法,并为预测 CAR-T 细胞免疫治疗的疗效提供了新见解。

中文摘要

本研究设计了气体囊泡标记CAR-T 细胞复合物(GVs@CAR-T),使用超声反射性良好的纳米级气体囊泡对CAR-T 细胞进行标记,以便标记后开展超声分子成像。

GVs@CAR-T 复合物可稳定进行超声成像,最长达5天。体内外实验表明,气体囊泡标记不影响CAR-T 细胞的抗肿瘤功能。在皮下肿瘤模型中,研究者使用超声分子成像监测全身输注的GVs@CAR-T 细胞向靶点迁移,发现特异性浸润与治疗疗效呈正相关。

本研究提出了一种体内追踪CAR-T 细胞的有效方法,并为预测CAR-T 细胞免疫治疗疗效提供了新见解。

展开英文摘要原文

We designed a gas vesicles (GVs)-labeled CAR-T (GVs@CAR-T) complex using nanoscale GVs with excellent ultrasound reflectivity to label CAR-T cells for post-labelling ultrasound molecular imaging.

GVs@CAR-T complexes achieved stable ultrasound imaging for up to five days. In vitro and vivo experiments demonstrated that GVs labelling did not affect the anti-tumour function of CAR-T cells. In a subcutaneous tumour model, ultrasound molecular imaging was used to monitor the targeted migration of systemically infused GVs@CAR-T cells, which revealed a positive correlation between specific infiltration and therapeutic efficacy.

This study presents an efficient method for in vivo tracking of CAR-T cells and offers new insights for predicting the efficacy of CAR-T cell immunotherapy.

论文信息

作者
Huang Y、Yin Z、Xu R、Zheng W、Zhang Q、Zhou M、Xu Z、He Y
单位
The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, People's Republic of China.China
期刊
International journal of nanomedicine2025
原文标识
PubMed 40259914 · DOI 10.2147/IJN.S508846