CELL INTELLIGENCE · 肿瘤细胞治疗研究
肿瘤细胞治疗研究
英文原题:Reconfiguring the immune system to target cancer: Therapies based on T cells, cytokines, and vaccines.
Reconfiguring the immune system to target cancer: Therapies based on T cells, cytokines, and vaccines.
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多年来,大量研究致力于对癌症进行深入分析,以揭示其本质的复杂细节——包括癌症类型、致病因子、疾病进展的刺激因素、导致不良预后的因素,以及限制转移侵袭性的有效疗法。本章重点阐述宿主免疫系统不同分支——即细胞因子、淋巴细胞、抗原呈递细胞(APCs)——被动员以根除癌症的机制。大多数恶性肿瘤要么免疫原性较弱,要么处于高度免疫抑制的微环境中。这就是为什么通过输注促炎细胞因子、负载肿瘤抗原的APCs和抗肿瘤细胞毒性细胞来增强宿主的抗肿瘤防御,已成为一种可行的癌症治疗选择。本章还重点介绍了不同恶性肿瘤中正在进行的临床前和临床研究以及各种疗法的结果。尽管这些方法并非万无一失,抗原逃逸变异体仍可逃避或对定制疗法产生耐药性,但在常规治疗失败的若干病例中,这些方法实现了疾病稳定。在许多情况下,涉及细胞因子、T细胞和疫苗的联合疗法被证明比单一疗法更有效。本章还讨论了当前疗法的局限性,以及为提高疗效而正在进行的改良。
Over the years, extensive research has been dedicated to performing in-depth analysis of cancer to uncover the intricate details of its nature - including the types of cancer, causative agents, stimulators of disease progression, factors contributing to poor prognosis, and efficient therapies to restrict the metastatic aggressiveness. This chapter highlights the mechanisms through which different arms of the host immune system - namely cytokines, lymphocytes, antigen-presenting cells (APCs) -can be mobilized to eradicate cancer. Most malignant tumors are either poorly immunogenic, or are harbored in a highly immuno-suppressive microenvironment.
This is why reinforcing the host's anti-tumor defenses, through infusion of pro-inflammatory cytokines, tumor antigen-loaded APCs, and anti-tumor cytotoxic cells has emerged as a viable treatment option against cancer. The chapter also highlights the ongoing preclinical and clinical studies in different malignancies and the outcome of various therapies.
Although these methods are not foolproof, and antigen escape variants can still evade or develop resistance to customized therapies, they achieve disease stabilization in several cases when conventional treatments fail. In many instances, combination therapies involving cytokines, T cells, and vaccinations prove more effective than monotherapies. The limitations of the current therapies are also discussed, along with ongoing modifications aimed at improving efficacy.
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