瘤代谢在染细胞瘤:临床和治疗影响
Mohammad Sadiq Jeeyavudeen1, Navin Mathiyalagan2, Cornelius Fernandez James3
1Department of Endocrinology & Metabolism, University Hospitals of Edinburgh, EH16 4SA Edinburgh, UK.
Exploration of targeted anti-tumor therapy
|May 15, 2024
概括
乳红细胞瘤和偏角细胞瘤 (PPGLs) 是常见的内分泌瘤,是由代谢途径异常驱动的. 了解这些代谢复杂性,包括甲基代谢物,对于开发新的治疗策略至关重要.
科学领域:
- 内分泌瘤学内分泌瘤学
- 瘤的新陈代谢
- 分子瘤学分子瘤学
背景情况:
- 乳红细胞瘤和偏角细胞瘤 (PPGLs) 是常见的内分泌瘤.
- 它们的发展与遗传因素和代谢途径失调密切相关,特别是涉及克雷布斯周期.
- 异常的新陈代谢导致代谢物的积累,促进恶性瘤和基因组不稳定.
研究的目的:
- 在PPGL中全面审查瘤代谢的多方面的方面.
- 阐明遗传突变,代谢物和瘤发生之间的复杂关系.
- 探索针对PPGLs代谢异常的潜在治疗策略.
主要方法:
- 对PPGLs进行广泛的代谢和遗传研究的审查.
- 对遗传突变 (例如,SDHx) 和对代谢物水平之间的相关性进行分析.
- 检查表观遗传变化和缺氧诱导途径.
主要成果:
- 特定的基因突变,如SDHx基因中的突变,与代谢物 (succinate, fumarate) 的积累有关.
- 代谢障碍在表观遗传修饰和缺氧途径中起着至关重要的作用.
- 对推动PPGL发展的复杂分子相互作用的新见解正在出现.
结论:
- PPGLs表现出深刻的代谢复杂性,对瘤发生有重大影响.
- 了解这些代谢障碍对于推进诊断和治疗方法至关重要.
- 准代谢途径为PPGLs的创新治疗提供了有希望的途径.
相关概念视频
Transducer Mechanism: Enzyme-Linked Receptors
2.4K
Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:
Major types that are helpful drug targets include:
2.4K
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
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
Drugs Affecting Neurotransmitter Synthesis
1.4K
Drugs affecting neurotransmitter synthesis can impact the adrenergic neuron and the synthesis of neurotransmitters. For example, α-methyltyrosine and carbidopa target specific enzymes involved in catecholamine synthesis. α-methyltyrosine inhibits the enzyme tyrosine hydroxylase, which converts tyrosine into dopamine. By blocking this enzyme, α-methyltyrosine reduces dopamine production and other catecholamines. Carbidopa, on the other hand, inhibits the enzyme dopa decarboxylase,...
1.4K
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
Cancer Therapies
7.6K
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
7.6K


