对高脂肪饮食的急性暴露会损害ILC3功能和肠道平衡
Le Xiong1, Shanti Diwakarla2, Roxanne Chatzis3
1The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville, VIC 3052, Australia; Department of Medical Biology, University of Melbourne, Parkville, VIC 3010, Australia.
Immunity
|April 15, 2025
概括
高脂肪饮食通过影响先天性淋巴细胞 (ILC3s) 和它们的IL-22产生,迅速损害肠道健康. 不和脂肪可以保护肠道平衡,而和脂肪会恶化损伤.
科学领域:
- 免疫学 免疫学 免疫学
- 胃肠病学 胃肠病学
- 代谢过程中的代谢.
背景情况:
- 高脂肪饮食 (HFD) 恶化肠道疾病,但早期机制尚不清楚.
- 肠道平衡依赖于先天性淋巴细胞 (ILC3s) 和它们的细胞因子生产.
研究的目的:
- 研究HFD对ILC3功能和肠道平衡的急性影响.
- 阐明和脂肪酸和不和脂肪酸在ILC3介导的肠道健康中的不同作用.
主要方法:
- 对ILC3功能和细胞因子产生的分析,以应对HFD.
- 评估肠道透性,微生物失生症和相关的分子变化.
- 调查ILC3s.内的脂肪酸代谢途径.
主要成果:
- 在48小时内,HFD迅速影响ILC3s和IL-22 (IL-22) 的产生.
- 这种损伤与肠道失调,增加透性和减少保护因素相关.
- 不和脂肪酸通过DGAT酶支持IL-22的分泌,而和脂肪酸会影响IL-22的分泌.
结论:
- 食脂肪酸和严重影响ILC3功能和肠道平衡.
- ILC3s中的代谢途径区分和脂肪和不和脂肪对肠道健康的影响.
- 针对这些途径可能为HFD诱导的肠道炎症提供治疗策略.
相关概念视频
Irritable Bowel Syndrome I: Introduction
210
Irritable Bowel Syndrome (IBS) is characterized by functional disturbances in the gastrointestinal system, presenting a cluster of symptoms without evident structural or biochemical abnormalities. It primarily affects the large intestine and may cause abdominal pain, bloating, excessive gas, diarrhea, constipation, or both.
IBS is a chronic condition that can persist over a long period or recur frequently.
The pathogenesis of IBS involves a complex interplay of the following factors:
Altered...
IBS is a chronic condition that can persist over a long period or recur frequently.
The pathogenesis of IBS involves a complex interplay of the following factors:
Altered...
210
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
277
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...
277
Chronic Pancreatitis I: Introduction
56
The pancreas, an elongated and flat gland situated behind the stomach, serves a vital function in digesting food and managing blood sugar levels.
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
56
Chronic Bowel Disorders: Introduction
363
Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...
363


