抗抑郁药对胆固醇稳态的破坏会诱导免疫细胞死亡
Karla Alvarez-Valadez1, Jonathan G Pol1, Guido Kroemer1,2,3
1Centre de Recherche des Cordeliers, Inserm UMRS 1138, Sorbonne Université, Université de Paris Cité, Équipe labellisée par la Ligue contre le Cancer, Institut Universitaire de France, Paris, France.
Oncoimmunology
|July 10, 2025
概括
塞特拉林和印特拉林,是血清素再吸收抑制剂,诱导胆固醇在溶解体中的积累,导致细胞死亡和激活T细胞进行瘤控制.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 药理学 药理学 是一个学科.
背景情况:
- 塞特拉林和印特拉林是选择性的血清素再吸收抑制剂 (SSRI).
- 这些SSRI显示出作为抗癌剂的潜力,但它们的机制尚未完全理解.
- 以前的研究表明,它在癌症治疗相关的细胞过程中起着作用.
研究的目的:
- 为了阐明塞特拉林和印特拉林的抗癌机制.
- 研究 lysosomal 功能和细胞死亡途径的作用.
- 探索药物诱导的癌细胞死亡后续免疫反应.
主要方法:
- 在体外和体内研究了塞特拉林和内特拉林对癌细胞的影响.
- 分析了溶酶体胆固醇水平和膜完整性.
- 评估免疫细胞死亡 (ICD) 和T细胞激活的标志物.
主要成果:
- 塞特拉林和印特拉林都诱导了癌细胞溶解体内的显著胆固醇积累.
- 这种溶解体应激导致了溶解体膜透和随后的ICD.
- 诱导的ICD激活了T细胞介导的适应性免疫反应,导致显著的瘤控制.
结论:
- 塞特拉林和印特拉林通过诱导溶酶体胆固醇过载和随后的免疫细胞死亡来产生抗癌作用.
- 这种机制激活了依赖T细胞的免疫反应,为癌症治疗提供了一个新的治疗策略.
相关概念视频
Antidepressant Drugs: MAOIs and Other Agents
373
Atypical antidepressants, including bupropion (Wellbutrin), mirtazapine (Remeron), nefazodone (Serzone), trazodone (Desyrel), and vilazodone (Viibryd), offer unique mechanisms of action. Bupropion weakly inhibits dopamine and norepinephrine reuptake, aiding depression treatment and smoking cessation, with a low risk of sexual dysfunction. Mirtazapine enhances serotonin and norepinephrine neurotransmission, leading to sedation, increased appetite, and weight gain. As a result, it helps treat...
373
Antidepressant Drugs: Overview
786
Antidepressant drugs are a class of medications primarily used for treating various mood disorders, including major depression, anxiety disorders, and other related conditions. These medicines work by modulating the neurotransmitter balance within the brain, alleviating depressive symptoms. Antidepressants can be broadly categorized into several groups according to their mechanism of action and chemical structure: Selective Serotonin Reuptake Inhibitors (SSRIs), Serotonin-Norepinephrine...
786
Antidepressant Drugs: Tricyclics, SSRIs, and SNRIs
609
Tricyclic Antidepressants (TCAs), including Desipramine (Norpramin), Imipramine (Tofranil), Clomipramine (Anafranil), and Amitriptyline (Elavil), inhibit serotonin and norepinephrine reuptake and also block other receptors. They are used for depression, pain conditions, and insomnia. Common adverse effects include anticholinergic effects, sedation, orthostatic hypotension, and weight gain. They have a narrow therapeutic window and so require plasma-level monitoring. Abrupt discontinuation can...
609
Cholesterol: Significance and Regulation
697
Although not a source of energy, cholesterol plays a significant role as a foundational structure for bile salts, steroid hormones, and vitamin D, as well as being a crucial component of plasma membranes. Approximately 15% of blood cholesterol is derived from our diet, with the remainder synthesized from acetyl CoA by the liver and intestines. Cholesterol is eliminated from the body through its conversion into bile salts, which are eventually discarded in the feces.
Considering cholesterol and...
Considering cholesterol and...
697
Psychoneuroimmunology: Cardiovascular Disease
79
Psychoneuroimmunology (PNI) is a multidisciplinary field that examines how psychological factors, particularly stress, interact with the immune system and impact physical health. Research in PNI has shown that chronic or traumatic stress can disrupt both the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system. These disruptions contribute to serious health conditions, including cardiovascular diseases.
A key area of focus in PNI is the relationship between stress and coronary...
A key area of focus in PNI is the relationship between stress and coronary...
79
Desensitization and Tachyphylaxis
2.2K
Tachyphylaxis is described as a rapid decrease in response to a drug after repeated or continuous administration of the same drug dose. It is a phenomenon where the body becomes less responsive to a particular substance or intervention over time, requiring higher doses or stronger interventions to achieve the same effect. It results from adaptive changes in the body's receptors, signaling pathways, or physiological processes that occur in response to prolonged exposure to a stimulus.
2.2K


