奎瑞限制了瘤通过PDK1/CD47轴在黑色素瘤中的免疫逃逸
1Laboratory of Immunology and Inflammation, Department of Biotechnology, School of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, P. R. China.
The American journal of Chinese medicine
|March 15, 2024
概括
奎尔素通过增强M1巨细胞和T淋巴细胞等免疫细胞来增强黑色素瘤免疫力,同时降低CD47. 这种天然化合物有望改善黑色素瘤免疫疗法.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
背景情况:
- Quercetin 是一种植物衍生的黄类化合物,显示出潜在的抗瘤特性.
- 它对黑色素瘤免疫学的特定影响在很大程度上仍未被探索.
- 了解氨酸的免疫调节机制对于治疗开发至关重要.
研究的目的:
- 为了研究氨酸在黑色素瘤中的抗瘤免疫作用的作用和机制.
- 探索奎尔塞丁对瘤免疫微环境的影响.
- 阐明色素在黑色素瘤中调节的分子通路.
主要方法:
- 进行了体内和体外研究.
- 流细胞计用于分析免疫细胞群 (M1巨细胞,CD8+ T细胞,CD4+ T细胞).
- 定量实时PCR和西式涂抹评估了基因和蛋白质表达 (PDK1,CD47).
主要成果:
- 奎尔在瘤微环境中增加了M1巨细胞,CD8+ T细胞和CD4+ T细胞.
- 它促进了CD8+T细胞的IL-2和IFN-γ分泌,抑制了黑色素瘤的生长.
- 奎瑞抑制了B16细胞的增殖和迁移,降低了PDK1和CD47的表达,并增强了CD8+T细胞的功能.
结论:
- 奎尔素通过调节瘤免疫微环境来增强黑色素瘤的抗瘤免疫力.
- 它通过一种涉及CD47调节的新机制起作用,促进细胞化.
- 奎尔丁显示出作为一种辅助疗法的潜力,可以改善黑色素瘤免疫疗法的结果.
相关概念视频
Inhibition of Cdk Activity
4.7K
The orderly progression of the cell cycle depends on the activation of Cdk protein by binding to its cyclin partner. However, the cell cycle must be restricted when undergoing abnormal changes. Most cancers correlate to the deregulated cell cycle, and since Cdks are a central component of the cell cycle, Cdk inhibitors are extensively studied to develop anticancer agents. For instance, cyclin D associates with several Cdks, such as Cdk 4/6, to form an active complex. The cyclin D-Cdk4/6 complex...
4.7K
Tumor Immunotherapy
524
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.
524
Targeted Cancer Therapies
7.6K
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.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.6K
mTOR Signaling and Cancer Progression
3.8K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
3.8K
Combination Therapies and Personalized Medicine
4.9K
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...
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...
4.9K
Abnormal Proliferation
4.5K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.5K


