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Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
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The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
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相关实验视频

Updated: Jan 15, 2026

Killer Artificial Antigen Presenting Cells KaAPC for Efficient In Vitro Depletion of Human Antigen-specific T Cells
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使用有针对性的光动力学疗法耗尽自动反应性B细胞.

Kevin R Venrooij1, Theodoros Ioannis Papdimitriou2, Daphne N Dorst1,2

  • 1Institute of Molecules and Materials, Synthetic Organic Chemistry, Radboud University, Heyendaalseweg 135, Nijmegen 6525 AJ, The Netherlands.

ACS pharmacology & translational science
|October 16, 2025
PubMed
概括

向光动力学疗法 (tPDT) 使用一种新的构造选择性地消除自反应性B细胞. 这种方法节省了健康的B细胞,为类风湿性关节炎 (RA) 等自身免疫性疾病提供了有前途的治疗方法.

关键词:
针对抗原选择性的B细胞向.自身免疫性疾病是一种自身免疫性疾病.多价抗原是一种多价抗原.摄影敏感剂 摄影敏感剂有针对性的光动力学治疗.

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科学领域:

  • 免疫学 免疫学 免疫学
  • 生物技术是生物技术.
  • 照相医疗 (photomedicine) 是一种医学.

背景情况:

  • 像风湿性关节炎 (RA) 这样的自身免疫性疾病涉及自身反应性B细胞驱动病理.
  • 目前的B细胞消耗疗法缺乏特异性,导致广泛的免疫缺陷.

研究的目的:

  • 开发一种向疗法,选择性地消除自身反应性B细胞.
  • 为了研究针对性光动力学治疗 (tPDT) 为此目的的疗效.

主要方法:

  • 设计了一种具有二极性抗原 (diCCP4) 的结构,针对特定的自反应性B细胞受体 (BCR).
  • 将光敏剂IRDye700DX纳入结构中.
  • 在修改后的拉莫斯B细胞线上测试了构造,表达了目标BCR.
  • 在3D共培养中与外周血液单核细胞 (PBMCs) 暴露光线后评估细胞活力.

主要成果:

  • 在光激活时,tPDT构造有选择地消除了在光激活时表达自主反应BCR的修饰Ramos B细胞.
  • 该结构对缺乏标BCR的细胞没有细胞毒性.
  • 共同培养实验表明对非向细胞的影响最小.

结论:

  • 向光动力学疗法 (tPDT) 有效地和选择性地消除自反应性B细胞.
  • 这种方法有可能治疗像RA这样的自身免疫性疾病,并减少副作用.
  • 需要进一步的研究来将这种疗法转化为临床应用.