奇塔洛普拉姆通过调节C5aR1+ TAMs来表现出免疫依赖的抗瘤作用
Fangyuan Dong1, Shan Zhang2, Kaiyuan Song3
1Department of Gastroenterology, Shanghai Key Laboratory of Clinical Geriatric Medicine, Shanghai Institute of Geriatrics and Gerontology, Huadong Hospital, Fudan University, Shanghai, China.
eLife
|February 9, 2026
概括
选择性血清素再吸收抑制剂 (SSRI) 显示出抗瘤作用. 西塔洛普拉姆是一种SSRI,向补充成分5a受体1 (C5aR1),以提高肝细胞癌 (HCC) 的抗癌免疫力.
科学领域:
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
- 在瘤学瘤学.
背景情况:
- 选择性血清素再吸收抑制剂 (SSRI) 与降低癌症风险有关,并具有抗瘤特性.
- 精确的分子标和SSRI抗癌作用背后的机制尚未完全理解.
- 肝细胞癌 (HCC) 仍然是一个重大的全球健康挑战,需要新的治疗策略.
研究的目的:
- 研究citalopram在肝细胞癌 (HCC) 中免疫依赖的抗瘤作用.
- 为了确定citalopram的抗HCC活性的分子标,与其已知的血清素载体抑制区分开来.
- 探索重新利用SSRI的潜力,比如citalopram,用于癌症治疗.
主要方法:
- 药物重定向方法包括全球逆基因表达概况.
- 药物亲和度响应目标稳定性 (DARTS) 试验和分子对接.
- 在体内研究评估citalopram对HCC模型中的巨细胞化和CD8+T细胞免疫力的影响.
主要成果:
- 西塔洛普拉姆在HCC中表现出免疫依赖的抗瘤作用,独立于血清素载体.
- 补充成分5a受体1 (C5aR1) 被确定为citalopram的新型分子标.
- 奇塔洛普拉姆治疗增强了巨细胞化,并促进了CD8+ T细胞介导的抗瘤免疫力,C5aR1和CD8+ T细胞对疗效至关重要.
结论:
- 奇塔洛普拉姆通过向C5aR1来发挥抗HCC作用,从而调节瘤微环境并增强抗瘤免疫力.
- 这项研究强调了利在诱导抗瘤反应中的免疫调节作用.
- 这些发现支持SSRI作为HCC治疗的有前途的治疗途径的潜在重新定位.
相关概念视频
What is the Immune System?
131.2K
Overview
131.2K
Frequency-dependent Selection
24.2K
When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
24.2K
Buffer Effectiveness
55.5K
Buffer solutions do not have an unlimited capacity to keep the pH relatively constant . Instead, the ability of a buffer solution to resist changes in pH relies on the presence of appreciable amounts of its conjugate weak acid-base pair. When enough strong acid or base is added to substantially lower the concentration of either member of the buffer pair, the buffering action within the solution is compromised.
The buffer capacity is the amount of acid or base that can be added to a given volume...
The buffer capacity is the amount of acid or base that can be added to a given volume...
55.5K
Framing Effects
8.0K
Information is everywhere and its presentation—such as how and when items are presented—can impact our perceptions and decisions surrounding the info. This broad concept umbrellas framing effects—influences that occur due to the way information is framed in its appearance, whether it’s purely the order or the specific wording of a message. Let’s take a look at numerous ways in which two versions of something can objectively say the same thing, yet we respond in...
8.0K
Humoral Immune Responses
84.1K
Overview
84.1K
Drug Dependence
1.7K
Medications are typically administered to achieve therapeutic effects. Some drugs can modify an individual's mood and perception, frequently resulting in various enjoyable experiences. However, this can result in drug dependency, a condition marked by continuous drug use despite potential negative consequences. Drug dependency primarily falls into two categories: psychological and physical dependence. Psychological dependence occurs when the pleasurable feelings induced by the drug...
1.7K


