CAR-T(CAR-T)细胞疗法在非肿瘤性疾病中的应用
Chimeric antigen receptor T (CAR-T) cell therapy in non-oncological diseases.
CAR-T(CAR-T)细胞在血液系统恶性肿瘤中的应用推动了这种免疫治疗形式的显著进展。
CELL INTELLIGENCE · 肿瘤细胞治疗研究
肿瘤细胞治疗研究
英文原题:Gas Vesicle-Assisted Ultrasound Imaging for Effective Anti-Tumour CAR-T Cell Immunotherapy Efficacy in Mice Model.
Gas Vesicle-Assisted Ultrasound Imaging for Effective Anti-Tumour CAR-T Cell Immunotherapy Efficacy in Mice Model.
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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。
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。
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.
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