相关实验视频
Updated: May 11, 2025
08:40
Chronic Salmonella Infection Induced Intestinal Fibrosis
Published on: September 22, 2019
6.9K
结肠病和炎症性肠病的共同遗传学表明肠上皮细胞在肠道上皮细胞的作用更大
Nathan Vinícius Ribeiro1, Sajid Anwar1, Sebo Withoff1
1Department of Genetics, University Medical Center Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands.
International journal of molecular sciences
|April 17, 2025
概括
肠上皮细胞中的遗传变异会影响肠道自身免疫性疾病,如乳病 (CeD) 和炎症性肠病 (IBD). 了解这些遗传影响可以导致新的药物标和个性化疗法.
科学领域:
- 胃肠道学和免疫学
- 自身免疫性疾病的遗传学
- 皮质细胞生物学 皮质细胞生物学
背景情况:
- 结核病 (CeD) 和炎症性肠病 (IBD) 的遗传基础已经确立,主要关注免疫细胞.
- 遗传变异在非免疫细胞,特别是肠道上皮细胞中的作用仍然不太清楚.
- 肠上皮细胞积极调节免疫反应,使它们在疾病发病过程中至关重要.
研究的目的:
- 研究CeD和IBD共享的与疾病相关的局部内基因的功能,这些基因在上皮细胞中表达.
- 探索这些遗传变异在自身免疫性肠道疾病的背景下对上皮细胞行为和功能的潜在影响.
- 通过将遗传变异与特定细胞类型联系起来,识别潜在的药物标,并为个性化治疗策略提供信息.
主要方法:
- 文献综述和位于共享CeD和IBD遗传位置的基因的功能分析.
- 专注于在肠道上皮细胞中特别表达的基因.
- 分析这些基因对免疫调节和疾病发展的潜在影响.
主要成果:
- 在共享的CeD和IBD位点内确定了几种基因,这些基因在肠道上皮细胞中表达.
- 突出了这些基因对表皮细胞功能和免疫相互作用的影响的潜力.
- 为了解细胞类型对自身免疫性肠道疾病的特定遗传贡献提供了基础.
结论:
- 影响肠道上皮细胞的遗传变异在乳病和炎症性肠病的发病过程中起着重要作用.
- 对上皮细胞的基因变异进行精细映射对于识别新型治疗点至关重要.
- 这项研究支持基于细胞类型特定的遗传洞察力开发针对自身免疫性肠道疾病的向治疗方法.
相关概念视频
01:23Renewal of Intestinal Stem Cells
2.5K
The intestinal epithelial lining rapidly renews every 4 to 5 days. The renewal is facilitated by intestinal stem cells (ISCs) located at the base of the crypt– a gland located at the bottom of each villus. ISCs divide asymmetrically to form new stem cells and progenitor daughter cells. The daughter cells are called transit-amplifying (TA) cells which move upwards along the crypt and either differentiate into absorptive cells– the enterocytes or secretory cells– including the...
2.5K
01:27Inflammatory Bowel Disease I: Ulcerative Colitis
97
Introduction
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
97
01:30Inflammatory Bowel Disease II: Crohn's Disease
128
Introduction
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by...
Inflammatory bowel disease, commonly known as IBD, refers to a collection of disorders that lead to persistent inflammation of the gastrointestinal tract. The two types of IBD are ulcerative colitis, which impacts the colon, and Crohn's disease, which can involve any part of the gastrointestinal segment.
Crohn's disease
Crohn's disease is a chronic, systemic inflammatory bowel disease (IBD) that predominantly affects the gastrointestinal tract. It is marked by...
128
01:17Chronic Bowel Disorders: Introduction
316
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...
316
01:27Histology of the Small Intestine
285
The small intestine exhibits a unique histological structure that significantly enhances its function in digestion and nutrient absorption. These structures include circular folds, villi, and various specialized cells that collectively facilitate the digestion of food.
The intestinal lining features transverse folds called circular folds, each housing fingerlike projections known as intestinal villi. These villi are covered by a layer of simple columnar epithelium, also referred to as...
The intestinal lining features transverse folds called circular folds, each housing fingerlike projections known as intestinal villi. These villi are covered by a layer of simple columnar epithelium, also referred to as...
285
01:22Role of Ephrin-Eph Signalling in Intestinal Stem Cell Renewal
2.2K
Erythropoietin-producing hepatocellular carcinoma receptor (Eph) and its ligand, Eph receptor-interacting protein (Ephrin) were first discovered in the human carcinoma cell line, hence the name. Ephrin-Eph interaction guides cells to reach their appropriate location in adult tissues. They also play an essential role in the immune system by helping in immune cell migration, adhesion, and activation. Based on their structure and function, Eph is divided into two classes — EphA and EphB.
2.2K