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相关概念视频

T Cell Types and Functions01:24

T Cell Types and Functions

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When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
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Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...
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Autoimmune diseases are a group of disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs. This results from an overactive immune response against substances and tissues normally present in the body. Let's delve into the concept and mechanism of autoimmune diseases from an immune system point of view, explore different causes and examples of such diseases, and discuss potential solutions.
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相关实验视频

Updated: Sep 16, 2025

Dynamic Imaging of Chimeric Antigen Receptor T Cells with [18F]Tetrafluoroborate Positron Emission Tomography/Computed Tomography
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系统性硬化症中的CAR-T细胞.

Lazaros I Sakkas1, Chistina Katsiari2, Vasiliki Syrmou2

  • 1Faculty of Medicine, School of Health Sciences, University of Thessaly, Larissa, Greece. lsakkas@med.uth.gr.

Clinical rheumatology
|July 4, 2025
PubMed
概括

系统性硬化症 (SSc) 治疗显示出与B细胞向的仿真抗原受体 (CAR) -T细胞的承诺,提供改善,但面临纤维化和可访问性的挑战. 新的CAR T细胞疗法正在研究逐步的SSc.

关键词:
不良影响不良影响B 细胞 B 细胞 B 细胞双特定单克隆抗体 双特定单克隆抗体在T细胞,T细胞.

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科学领域:

  • 免疫学 免疫学 免疫学
  • 类风湿病学 类风湿病学
  • 细胞疗法细胞疗法

背景情况:

  • 系统性硬化症 (SSc) 是一种复杂的自身免疫性疾病,其特点是纤维化,微血管病变和自身抗体.
  • 早期的发病包括自适应性免疫系统激活 (T细胞,B细胞,巨细胞) 和微血管病变.
  • 目前的免疫抑制疗法,包括抗B细胞生物药物,有局限性,留下了大量未满足的需求.

研究的目的:

  • 评估自化化学抗原受体 (CAR) -T细胞治疗在患有系统性硬化症 (SSc) 的患者的疗效和挑战.
  • 探索用于治疗渐进性和耐火性SSc.的新型CAR T细胞技术.

主要方法:

  • 在一小群SSc患者中,给予自主CD19向的CAR-T细胞.
  • 监测临床结果,包括皮肤评分,关节炎,指部和器官参与.
  • 评估新兴的CAR T细胞策略,如全基,双特异的CAR-T细胞和CAR NK细胞.

主要成果:

  • 自主CAR-T细胞疗法在皮肤得分,关节炎,指部以及心脏和肺部炎症方面有所改善.
  • 肺纤维化的回归仍然是一个重大挑战.
  • 自主性CAR-T细胞存在局限性,包括成本,可用性和潜在的不良影响 (CRS,神经毒性,感染).

结论:

  • 自体CD19向的CAR-T细胞显示了SSc的治疗潜力,但是个性化的,昂贵的,并且无法广泛获得.
  • 先进的CAR T细胞疗法,如全基CAR-T和CAR-NK细胞,正在研究耐火性SSc.
  • 需要进一步的研究来克服诸如肺纤维化等挑战,并提高治疗的可访问性和安全性.