The potential and promise of IL-15 in immuno-oncogenic therapies.

The potential and promise of IL-15 in immuno-oncogenic therapies.
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IL-15在免疫共同疗法中的潜力和希望。

DOI:
10.1016/j.imlet.2017.08.010
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发表时间:
2017-10
期刊:
影响因子:
4.4
通讯作者:
Schluns KS
Schluns KS
中科院分区:
医学3区
文献类型:
--
作者:
Robinson TO;Schluns KS

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本综述深入描述了临床前和临床研究,证明了 IL-15 和 IL-15 类似物作为外源性免疫肿瘤药物的有效性和局限性。 IL-15 是一种细胞因子,主要刺激 CD8 T 细胞和 NK 细胞的增殖和细胞毒功能,从而增强抗肿瘤反应。虽然 IL-15 最初显示出作为癌症治疗的希望,但其功效因其体内半衰期短而受到限制。最近,已开发出多种方法来改善 IL-15 的体内半衰期和功效,主要是通过生成 IL-15/IL-15Rα 缀合物。这些新的基于 IL-15 的药物刷新了 IL-15 作为癌症免疫治疗剂的前景。 IL-15 药物虽然作为单一疗法在诱导肿瘤消退方面具有一定功效,但在与其他免疫肿瘤疗法联合使用方面也显示出巨大的潜力。事实上,在许多小鼠癌症模型中,联合治疗中使用的 IL-15 比单独使用 IL-15 治疗产生更好的抗肿瘤反应并延长生存期。这些临床前研究的令人鼓舞的结果导致了多项临床试验的实施,以测试基于 IL-15 的药物作为独立治疗或与其他疗法联合治疗晚期实体瘤和血液恶性肿瘤的安全性和有效性。
This review provides an in-depth description of the preclinical and clinical studies demonstrating the effectiveness and limitations of IL-15 and IL-15 analogs given as an exogenous immuno-oncology agent. IL-15 is a cytokine that primarily stimulates the proliferation and cytotoxic functions of CD8 T cells and NK cells leading to enhanced anti-tumor responses. While initially showing promise as a cancer therapeutic, the efficacy of IL-15 was limited by its short in vivo half-life. More recently, various approaches have been developed to improve the in vivo half-life and efficacy of IL-15, largely by generating IL-15/IL-15Rα conjugates. These new IL-15 based agents renew the prospect of IL-15 as a cancer immunotherapeutic agent. While having some efficacy in inducing tumor regression as a monotherapy, IL-15 agents also show great potential in being used in combination with other immuno-oncological therapies. Indeed, IL-15 used in combination therapy yields even better anti-tumor responses and prolongs survival than IL-15 treatment alone in numerous murine cancer models. The promising results from these preclinical studies have led to the implementation of several clinical trials to test the safety and efficacy of IL-15-based agents as a stand-alone treatment or in conjunction with other therapies to treat both advanced solid tumors and hematological malignancies.
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