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:The molecular perspective on the melanoma and genome engineering of T-cells in targeting therapy.
The molecular perspective on the melanoma and genome engineering of T-cells in targeting therapy.
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黑色素瘤是一种源自人类黑色素细胞、具有侵袭性的恶性肿瘤,全球发病率不断上升,非手术治疗选择有限。近期对免疫逃逸、肿瘤发生、药物耐药和癌症转移背后的分子及细胞机制认识不断加深,为创新治疗策略铺平了道路。同步靶向多种通路的联合疗法已显示治疗黑色素瘤的良好前景,多数患者可产生有利应答。CAR-T 细胞通过工程化改造克服 T 细胞受体依赖人类白细胞抗原(HLA)识别肿瘤细胞的局限,为治疗提供另一种方法。将单采获得的异体或自体 T 细胞进行基因改造,使其表达嵌合抗原受体后,CAR-T 细胞可不依赖主要组织相容性复合体(MHC)而识别细胞表面抗原,从而显著增强对癌细胞的识别能力。
然而,首先需要确定最有效的靶抗原,以降低“靶向肿瘤但同时伤及正常组织”(on-target, off-tumor)毒性风险,并建立靶向治疗策略。
此外,目前对黑色素瘤发病机制中相关信号通路和关键分子的评估仍不充分。本研究强调 CAR-T 细胞免疫编辑的新方法,并提出与黑色素瘤相关分子信号通路的新见解。
Melanoma, an aggressive malignant tumor originating from melanocytes in humans, is on the rise globally, with limited non-surgical treatment options available. Recent advances in understanding the molecular and cellular mechanisms underlying immune escape, tumorigenesis, drug resistance, and cancer metastasis have paved the way for innovative therapeutic strategies. Combination therapy targeting multiple pathways simultaneously has been shown to be promising in treating melanoma, eliciting favorable responses in most melanoma patients.
CAR T-cells, engineered to overcome the limitations of human leukocyte antigen (HLA)-dependent tumor cell detection associated with T-cell receptors, offer an alternative approach. By genetically modifying apheresis-collected allogeneic or autologous T-cells to express chimeric antigen receptors, CAR T-cells can appreciate antigens on cell surfaces independently of major histocompatibility complex (MHC), providing a significant cancer cell detection advantage.
However, identifying the most effective target antigen is the initial step, as it helps mitigate the risk of toxicity due to "on-target, off-tumor" and establishes a targeted therapeutic strategy.
Furthermore, evaluating signaling pathways and critical molecules involved in melanoma pathogenesis remains insufficient.
This study emphasizes the novel approaches of CAR T-cell immunoediting and presents new insights into the molecular signaling pathways associated with melanoma.
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