微生物群的细菌影响宿主免疫和对免疫治疗的反应
Yeganeh Yousefi1, Kelly J Baines2, Saman Maleki Vareki3
1Verspeeten Family Cancer Centre, Lawson Health Research Institute, London, ON N6A 5W9, Canada.
Cell reports. Medicine
|March 28, 2024
概括
肠道微生物群影响癌症免疫治疗的有效性. 向肠道细菌可以改善患者对免疫检查点抑制剂 (ICI) 的反应,特别是在难以治疗的癌症中.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 微生物组研究的研究.
背景情况:
- 肠道微生物群显著影响抗瘤免疫力.
- 肠道细菌可以调节患者对免疫检查点抑制剂 (ICI) 的反应.
- 微生物组特征被研究为ICI治疗的预测生物标志物.
研究的目的:
- 探索肠道微生物群在抗瘤免疫中的作用.
- 了解肠道细菌如何影响免疫疗法反应.
- 突出基于微生物组的干预措施作为癌症免疫治疗的辅助治疗的潜力.
主要方法:
- 关于肠道微生物群和癌症免疫治疗的当前文献的综述.
- 对研究细菌对抗瘤免疫力的影响进行分析.
- 检查针对肠道微生物组的早期治疗策略.
主要成果:
- 特定的肠道细菌可以增强或阻碍对ICI的反应.
- 准肠道微生物群已经显示出改善各种癌症的临床结果的潜力.
- 早期干预表明,调节肠道微生物群可以提高ICI的有效性.
结论:
- 了解微生物群驱动的机制对于优化免疫治疗至关重要.
- 基于微生物组的策略有望提高ICI的疗效,特别是在治疗不耐药的癌症中.
- 需要对作用机制进行进一步的研究,以便在癌症治疗中充分利用肠道微生物群.
相关概念视频
Factors Affecting the Risk of Infection
11.8K
The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
11.8K
Defense Against Bacterial Pathogens
1.4K
The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
1.4K
The Tumor Microenvironment
6.6K
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
6.6K
Tumor Immunotherapy
523
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.
523
Cytotoxic T Cells-mediated Immune Response
907
Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
907
Anatomy of the Intestines
71.9K
Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
71.9K


