相关实验视频
Updated: Feb 15, 2026

10:23
Evaluation of Caspase Activation to Assess Innate Immune Cell Death
Published on: January 20, 2023
3.8K
在癌症中限制LXR/ApoE激活先天性免疫抑制
Masoud F Tavazoie1, Ilana Pollack1, Raissa Tanqueco1
1Laboratory of Systems Cancer Biology, The Rockefeller University, New York, NY, USA.
Cell
|January 17, 2018
概括
用肝X受体 (LXR) 激动剂向骨髓系抑制细胞 (MDSC) 可以增强癌症免疫疗法. 在临床前模型和第一阶段试验中,这种方法减少了免疫抑制细胞,提高了抗瘤T细胞的反应.
科学领域:
- 免疫学
- 癌症学
- 药理学
背景情况:
- 癌症免疫疗法,特别是检查点抑制, 已经彻底改变了治疗方法,
- 没有反应的患者往往表现出高水平的免疫抑制性骨髓衍生抑制细胞 (MDSC).
研究的目的:
- 识别和向调节MDSC丰度的途径,以提高癌症免疫疗法的有效性.
- 研究肝X核受体 (LXR) 激动剂在减少MDSC和增强抗瘤免疫力的治疗潜力.
主要方法:
- 使用遗传和药理方法研究小鼠癌症模型中的MDSC调节.
- 在癌症患者中首次进行LXR激应的剂量升级第一阶段试验.
- 评估了MDSC水平,细胞毒性T淋巴细胞 (CTL) 反应,以及ApoE的作用.
主要成果:
- 在小鼠和人类患者中,治疗性LXR激应显著降低了MDSC的丰度.
- 在临床前和临床环境中,MDSC耗尽与CTL激活的增强相关.
- LXR目标ApoE调解了这些效应,LXR/ ApoE激活促进了抗瘤反应和T细胞激活.
结论:
- 在癌症中,LXR/ApoE轴是先天免疫抑制的关键调节器.
- 针对LXR/ApoE途径是提高癌症免疫疗法的有希望的策略.
相关概念视频
Introduction to Innate and Adaptive Immunity
10.0K
The human immune system is a complex defense mechanism that protects the body from harmful pathogens and foreign substances. It comprises two crucial components: innate and adaptive immunity.
Innate immunity is the body's natural, nonspecific defense system that acts quickly to protect against pathogens. It incorporates physical barriers like skin and mucous membranes and cellular elements such as phagocytes and natural killer cells. This part of our immune system provides an immediate,...
Innate immunity is the body's natural, nonspecific defense system that acts quickly to protect against pathogens. It incorporates physical barriers like skin and mucous membranes and cellular elements such as phagocytes and natural killer cells. This part of our immune system provides an immediate,...
10.0K
Cells of the Innate Immune Response
9.5K
The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
9.5K
What is the Immune System?
133.3K
Overview
133.3K
Active versus Passive Immunity
11.1K
Immunity, along with the ability to limit pathogen growth to prevent significant body tissue damage, can be gained either by (1) actively developing an immune response within the individual after exposure to a pathogen or after getting vaccinated or (2) passively transferring immune components from an immune individual to one who is nonimmune. Both these forms of immunity can be found naturally and in medical practices.
Active Immunity
Active immunity refers to the resistance one develops...
Active Immunity
Active immunity refers to the resistance one develops...
11.1K
Restriction Enzymes
36.5K
Restriction enzymes are bacterial enzymes used to cut DNA in a sequence-specific manner. To cleave DNA, they bind to specific palindromic sequences called restriction sites. Such palindromic DNA sequences or inverted repeats are commonly found in regions of functional significance, such as the origin of replication, gene operator sites, and regions containing transcription termination signals.
The host bacteria protect their own genomic DNA from these enzymes by methylating these sites. Some...
The host bacteria protect their own genomic DNA from these enzymes by methylating these sites. Some...
36.5K
Humoral Immune Responses
84.2K
Overview
84.2K

