在放射治疗损伤后,肠道屏障功能的恢复和口腔微生物群的变化
Kun Wang1, Jingjing Zhang2, Yihao Zhang1
1Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao, China.
Frontiers in cellular and infection microbiology
|February 22, 2024
概括
结直肠癌的放射治疗可以改变肠道屏障功能和口腔微生物群. 这项研究观察到放射治疗后免疫球蛋白SIgA,细胞因子和免疫细胞的变化,这表明有针对性的益生菌有可能减少并发症.
科学领域:
- 胃肠道学和瘤学
- 免疫学 免疫学 免疫学
- 微生物组研究 微生物组研究
背景情况:
- 结肠直肠癌 (CRC) 治疗通常涉及新辅助化学放射治疗,这可能会破坏肠道粘膜屏障.
- 放射治疗引起的肠损伤与外科手术期间的并发症有关,对潜在机制的理解有限.
- 在CRC患者中观察到口腔微生物群的变化,但放射治疗后的变化仍未得到充分研究.
研究的目的:
- 通过分析免疫球蛋白SIgA,炎症因子和淋巴细胞子集来研究放射治疗对肠粘膜屏障的影响.
- 在使用16S rRNA测序的直肠癌患者进行放射治疗后,探索唾液微生物群的变化.
- 为了确定放射治疗后的最佳外科手术时间,并提供证据来开发益生菌或免疫调节剂,以减轻放射治疗引起的肠损伤和术后并发症.
主要方法:
- 在放射治疗后的不同时间点对40多名直肠癌患者的肠粘膜组织和唾液样本进行分析.
- 通过ELISA和西方血栓检测检测SIgA,IL-1β,IL-6和IL-17.
- 对CD4和CD8淋巴细胞子集的流细胞计,以及用于唾液微生物群体分析的16SrRNA测序.
主要成果:
- 放射治疗诱导SIgA,细胞因子,CD4/CD8淋巴细胞子集和直肠癌患者肠道粘膜中的口腔微生物群的变化.
- 这些辐射疗法引起的肠粘膜屏障的变化显示出随着时间的推移逐渐恢复的趋势.
结论:
- 放射治疗显著影响肠道粘膜屏障和直肠癌患者的口腔微生物群.
- 了解这些变化对于开发策略至关重要,如益生菌或免疫调节剂,以减少术后并发症.
- 对放射治疗后的唾液微生物群的进一步研究可以指导干预措施,以改善结直肠癌护理中的患者结果.
更多相关视频
05:14Assessment of Gut Barrier Integrity in Mice Using Fluorescein-Isothiocyanate-Labeled Dextran
Published on: November 18, 2022
8.3K
07:05Important Endpoints and Proliferative Markers to Assess Small Intestinal Injury and Adaptation using a Mouse Model of Chemotherapy-Induced Mucositis
Published on: May 12, 2019
5.8K
相关概念视频
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
334
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...
334
Anatomy of the Intestines
71.9K
Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
71.9K
