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相关概念视频

Tumor Immunotherapy01:27

Tumor Immunotherapy

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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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Combination Therapies and Personalized Medicine02:50

Combination Therapies and Personalized Medicine

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Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
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Cancer Vaccines01:30

Cancer Vaccines

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Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
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相关实验视频

Updated: Jun 23, 2025

Analysis of Human T Cell Activity in an Allogeneic Co-Culture Setting of Pre-Treated Tumor Cells
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Analysis of Human T Cell Activity in an Allogeneic Co-Culture Setting of Pre-Treated Tumor Cells

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计时癌症免疫疗法反应

Catherine L Wang1,2, Xue Zhang2,3, Chi V Dang2,3,4,5

  • 1Medical Scientist Training Program, Johns Hopkins University School of Medicine, Baltimore, Maryland.

Cancer research
|June 26, 2024
PubMed
概括

癌症免疫疗法的有效性是昼夜的,在晚上达到顶峰. 这种受T细胞贩运和PD-L1表达影响的免疫定时,为优化癌症治疗提供了新的策略.

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Intramucosal Inoculation of Squamous Cell Carcinoma Cells in Mice for Tumor Immune Profiling and Treatment Response Assessment
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Semi-automatic PD-L1 Characterization and Enumeration of Circulating Tumor Cells from Non-small Cell Lung Cancer Patients by Immunofluorescence
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科学领域:

  • 免疫学 免疫学 免疫学
  • 时间生物学 时间生物学
  • 癌症研究 癌症研究

背景情况:

  • 癌症免疫疗法已经彻底改变了治疗方法,但反应的变化仍然是一个挑战.
  • 新出现的证据表明,生物节奏会影响免疫系统的功能.
  • 了解这些节奏可能会打开新的治疗策略.

研究的目的:

  • 研究昼夜节律对癌症免疫治疗反应的影响.
  • 确定驱动观察到的时间效应的潜在机制.
  • 探索慢性疗法在癌症治疗中的临床影响.

主要方法:

  • 分析了两项最近的研究,研究了小鼠癌症模型中的免疫治疗反应.
  • 对白天T细胞贩运和PD-L1表达在髓状细胞上的研究.
  • 发现与人类癌症免疫治疗临床试验数据的相关性.

主要成果:

  • 免疫疗法反应表现出显著的昼夜模式,在晚上 (休息阶段结束) 达到顶峰.
  • 这种节律性与T细胞运动的每日波动和编程死亡配体1 (PD-L1) 表达有关.
  • 循环免疫行为在不同癌症模型中是一致的,并且在人类患者中观察到.

结论:

  • 瘤免疫在昼夜时钟上运行,影响免疫疗法的有效性.
  • 一天中的时间是癌症免疫治疗中一个关键的,以前未被识别的变量.
  • 对免疫昼夜时钟的进一步研究对于提高临床免疫治疗结果至关重要.