在接受常规或低分离的新辅助放射治疗的直肠腺癌患者中,IFN-I型反应和系统免疫力
Ioannis M Koukourakis1, Erasmia Xanthopoulou2, Michael I Koukourakis2
1Radiation Oncology Unit, 1st Department of Radiology, School of Medicine, Aretaieion Hospital, National and Kapodistrian University of Athens (NKUOA), 11528 Athens, Greece.
Biomolecules
|April 27, 2024
概括
短期放射治疗 (scRT) 在直肠癌患者中显著提高了全身干扰素-β (IFNβ) 水平和免疫细胞数量. 这表明scRT增强了I型干扰素通路,可能改善免疫治疗结果.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 辐射疗法 辐射疗法
背景情况:
- I型干扰素 (IFN-type-I) 途径对于放射治疗 (RT) 介导的免疫反应至关重要.
- 假设大型RT分数能够强烈诱导这种途径.
- 在直肠腺癌中,新辅助性低分化短期 (scRT) 和常规长期 (lcRT) RT 提供了一个研究系统性RT免疫刺激作用的模型.
研究的目的:
- 在scRT和lcRT后对直肠腺癌患者的系统IFNβ血水平和淋巴细胞计数 (LCs) 进行前性分析.
- 评估RT分离对免疫细胞亚群的影响.
- 为了将IFNβ水平与病理性瘤回归相关联.
主要方法:
- 在直肠腺癌患者的IFNβ血水平和LC的前性分析.
- scRT (n=22) 和lcRT (n=40) 治疗组之间的比较.
- 在一组患者 (n=20) 中,对淋巴细胞亚群的流细胞计分析.
主要成果:
- 与lcRT相比,scRT显著增加了RT后的IFNβ血水平 (p=0.004).
- 治疗后IFNβ水平升高与病理性瘤回归改善相关 (p=0.003).
- 在scRT组中,RT后的LC显著高于scRT组 (p=0.001),尽管整体淋巴缺血.
- scRT患者在治疗后显示调控性CD4+/CD25+T细胞的百分比较低 (p=0.02).
结论:
- 在直肠癌患者中,scRT有效地刺激了全身IFN-type-I通路.
- 与lcRT相比,scRT显示出有利的免疫特征,淋巴细胞减少和调节性T细胞激活减少.
- 这些发现支持了scRT与免疫瘤学疗法的结合作用.
关键词:
CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD8 CD9 CD8 CD8 CD8 CD9 CD8 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 CD9 是一个字体的字体的字体是什么意思如果IFNββ腺癌瘤是一种腺癌.低分化是一种低分化.免疫疗法 免疫疗法淋巴细胞减少症 (lymphopenia) 是一种淋巴细胞减少症.辐射疗法 辐射疗法这是直肠癌.相关概念视频
Drugs for Treatment of Crohn's Disease in IBD Using Biologic Agents: Anti-TNF
134
Tumor Necrosis Factor (TNF), a proinflammatory cytokine, contributes significantly to the inflammation seen in Crohn's disease. It exists as soluble TNF and membrane-bound TNF, with actions mediated through TNF receptors (TNFR). TNFR activation leads to the release of proinflammatory cytokines, T-cell activation, collagen production, and leukocyte migration, all contributing to inflammation in Crohn's disease. Anti-TNF monoclonal antibodies, namely infliximab (Remicade), adalimumab...
134
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
331
Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
331
Tumor Immunotherapy
520
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.
520


