PO.IM01.05 · 免疫学
AI设计的免疫传感器增强型CAR-T细胞用于强效实体瘤免疫治疗
AI-designed immune sensor-enhanced CAR-T cells for potent solid tumor immunotherapy
作者与单位 Authors & Affiliations
摘要 Abstract
中文摘要
基于免疫的治疗已彻底改变了癌症治疗;然而,其在实体瘤中的疗效仍然有限。这主要归因于免疫抑制性肿瘤微环境(TME)以及全身抗肿瘤免疫诱导不足。为克服这些障碍,Edity Therapeutics开发了一个AI指导的平台,将工程化的固有免疫传感器整合进CAR-T细胞。这些传感器旨在于抗原结合时启动局部的抗病毒样免疫应答。源自STING和MAVS通路的免疫传感器经过计算优化,以生成组成型激活但可控的衍生物,从而驱动I型干扰素和促炎细胞因子的产生。这些传感器模块被融合到一个导航结构域上,确保其激活仅在CAR信号传导时发生,从而将免疫刺激局限于肿瘤部位。设计了数百种传感器变体,并在体外筛选其功能效力。将表现出强烈免疫刺激活性的先导候选物整合入CAR-T构建体,并在SCID-Beige异种移植模型中进行评估。在这些模型中,与传统CAR-T对应物相比,传感器增强型CAR-T细胞表现出显著优越的肿瘤控制。通过在局部激发炎症,该方法将把免疫“冷”的TME转变为炎性肿瘤环境,有可能在不诱导外周不良反应的情况下实现强效的抗肿瘤应答。该平台目前正推进至临床开发,已基于抗原表达、肿瘤可及性和转化就绪度选定了两个实体瘤适应症。这些下一代CAR-T产品代表了一类新型细胞疗法,将精确的肿瘤靶向与受控的自主免疫激活相结合,为实体恶性肿瘤的治疗提供了一种变革性的方法,同时改善治疗指数。
查看英文原文 English abstract
Immune-based therapies have revolutionized cancer treatment; however, their efficacy in solid tumors remains limited. This is primarily due to the immunosuppressive tumor microenvironment (TME) and insufficient induction of systemic anti-tumor immunity. To overcome these barriers, Edity Therapeutics has developed an AI-guided platform that integrates engineered innate immune sensors into CAR-T cells. These sensors are designed to initiate a localized antiviral-like immune response upon antigen engagement. Immune sensors derived from the STING and MAVS pathways were computationally optimized to generate constitutively active, yet controllable, derivatives that drive Type I interferon and pro-inflammatory cytokine production. These sensor modules were fused to a navigator domain, ensuring their activation is exclusively upon CAR signaling, thereby confining immune stimulation to the tumor site. Hundreds of sensor variants were designed and screened in vitro for functional potency. Lead candidates exhibiting strong immuno-stimulatory activity were incorporated into CAR-T constructs and evaluated in SCID-Beige xenograft models. In these models, sensor-enhanced CAR-T cells demonstrated significantly superior tumor control compared to conventional CAR-T counterparts. By locally provoking inflammation, this approach will convert the immune-cold TME into an inflamed tumor milieu, potentially enabling robust anti-tumor responses without inducing peripheral adverse effects. The platform is currently being advanced toward clinical development, with two solid tumor indications selected based on antigen expression, tumor accessibility, and translational readiness. These next-generation CAR-T products represent a new class of cell therapies that couple precise tumor targeting with controlled autonomous immune activation, offering a transformative approach for the treatment of solid malignancies while improving the therapeutic index.
利益披露 Disclosure
Z. Alteber, None..
J. Sagiv, None..
R. Nave, None..
G. Friedman, None..
D. Shimon, None..
M. Shamsian, None..
M. Cemel David, None..
D. Listov, None..
S. Avkin Nachum, None..
O. Levy, None..
M. Golan Mashiach, None.