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.
CELL INTELLIGENCE · 肿瘤细胞治疗研究
肿瘤细胞治疗研究
英文原题:A long-acting interleukin-7, rhIL-7-hyFc, enhances CAR T cell expansion, persistence, and anti-tumor activity.
A long-acting interleukin-7, rhIL-7-hyFc, enhances CAR T cell expansion, persistence, and anti-tumor activity.
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嵌合抗原受体(CAR)T 细胞疗法已常规用于治疗难治性血液系统恶性肿瘤患者。然而,相当比例患者的 CAR-T 细胞细胞毒性和持续存在能力不理想,可能导致肿瘤细胞逃逸和疾病复发。本研究显示,一种原型促淋巴细胞生长因子可增强 CAR-T 细胞疗效。研究证明,将长效重组人白细胞介素 7(IL-7)与杂合 Fc 融合形成的 rhIL-7-hyFc,可促进异种移植小鼠模型中人 CAR-T 细胞以及同系小鼠模型中小鼠 CAR-T 细胞的增殖、持续存在和细胞毒性,最终实现长期无瘤生存。因此,rhIL-7-hyFc 是一种可调节、可用于临床的辅助剂,有望改善 CAR-T 细胞活性不足的问题。
Chimeric antigen receptor (CAR) T cell therapy is routinely used to treat patients with refractory hematologic malignancies.
However, a significant proportion of patients experience suboptimal CAR T cell cytotoxicity and persistence that can permit tumor cell escape and disease relapse.
Here we show that a prototype pro-lymphoid growth factor is able to enhance CAR T cell efficacy.
We demonstrate that a long-acting form of recombinant human interleukin-7 (IL-7) fused with hybrid Fc (rhIL-7-hyFc) promotes proliferation, persistence and cytotoxicity of human CAR T cells in xenogeneic mouse models, and murine CAR T cells in syngeneic mouse models, resulting in long-term tumor-free survival.
Thus, rhIL-7-hyFc represents a tunable clinic-ready adjuvant for improving suboptimal CAR T cell activity.
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