氧化后翻译性修改在1型糖尿病病原发生的作用
Ghadeer Alhamar1, Chiara Vinci2, Valentina Franzese3,4,5
1Department of Immunology and Microbiology, Dasman Diabetes Institute, Dasman, Kuwait.
Frontiers in immunology
|March 3, 2025
概括
氧化应激和翻译后修饰 (PTM) 产生新表位,增加β细胞的脆弱性和驱动1型糖尿病 (T1D) 病原体. 本综述探讨了它们在免疫功能障碍和疾病发病中的关键作用.
科学领域:
- 免疫学 免疫学 免疫学
- 内分泌学 在内分泌学.
- 分子生物学分子生物学
背景情况:
- 1型糖尿病 (T1D) 的发病包括遗传,免疫和环境因素.
- 胰腺β细胞的破坏是T1D的标志.
- 新出现的证据表明,T1D发展中的内在β细胞因素.
研究的目的:
- 审查氧化后翻译修饰 (PTMs),新表位和T1D之间的相互作用.
- 突出氧化应激是T1D病变发生的关键因素.
主要方法:
- 文献综述侧重于氧化PTM和T1D中的新表位.
- 对最近对PTM产生的新表位细胞的研究进行分析.
主要成果:
- 氧化应激会导致β细胞的脆弱性和免疫功能障碍.
- PTMs产生可能增强β细胞免疫原性的新表位.
- 来自PTM的新表位体在T1D病变发生过程中越来越多地被识别出来.
结论:
- 氧化性PTM和由此产生的新表位是T1D病原发生的重要贡献者.
- 氧化应激在免疫系统功能障碍和T1D中的β细胞向中发挥着关键作用.
- 对这些机制的进一步研究可以阐明T1D的发病情况,并为治疗策略提供信息.
相关概念视频
Pathophysiology of Diabetes
842
Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. The four categories of diabetes are type 1 diabetes, type 2 diabetes, other specific types of diabetes, and gestational diabetes.
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
842
Diabetes Mellitus: Overview and Type I Subtype
2.3K
Diabetes mellitus is a chronic metabolic disorder characterized by high blood glucose levels due to inadequate insulin production, insulin resistance, or both. The condition affects millions worldwide and can significantly impact their health and quality of life.
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
2.3K
Diabetes Mellitus: Type 2 and Gestational
2.1K
Type 2 diabetes, characterized by insulin resistance, arises when the insulin receptors on cells lose responsiveness to insulin, diminishing the cell's capacity to take up glucose, resulting in elevated blood glucose levels. To receive a diagnosis of Type 2 diabetes, a series of blood glucose tests are necessary to assess whether the blood glucose falls within normal parameters. If the result is out of the normal range, a patient may be diagnosed as prediabetic or diabetic, depending on the...
2.1K
Carbohydrate Metabolism
10.7K
Carbohydrates are polymers composed of molecules containing atoms of carbon, hydrogen and oxygen. One gram of carbohydrate can provide four kilo-calories of energy, which makes it the most efficient instant energy source.
Starch accounts for approximately 60% of the carbohydrates consumed by humans. Since amylase enzymes cannot function in the stomach's acidic environment, starch can only be digested in the mouth and small intestine. Simple sugars are found naturally in milk and fruits in...
Starch accounts for approximately 60% of the carbohydrates consumed by humans. Since amylase enzymes cannot function in the stomach's acidic environment, starch can only be digested in the mouth and small intestine. Simple sugars are found naturally in milk and fruits in...
10.7K
Diabetes: Symptoms, Diagnosis, and Complications
495
For most patients, experiencing several weeks of polyuria, polydipsia, fatigue, and significant weight loss may indicate the presence of diabetes. Furthermore, adults displaying the phenotypic appearance of type 2 diabetes (particularly those who are obese and not initially insulin-requiring), may have islet cell autoantibodies, suggesting autoimmune-mediated β cell destruction and a diagnosis of latent autoimmune diabetes of adults (LADA). The categorization of glucose homeostasis is...
495
Insulin: Biosynthesis, Chemistry, and Preparation
336
The endoplasmic reticulum (ER) of pancreatic β-cells synthesizes preproinsulin, which consists of a signal peptide, A and B chains, and a C-peptide. Preproinsulin is then cleaved and folded into proinsulin, which translocates to the Golgi apparatus for sorting and packaging into secretory granules. In these granules, enzymatic clipping generates insulin and C-peptide.
Damage or functional impairment of β-cells inhibits insulin production, leading to diabetes. Diabetes treatment...
Damage or functional impairment of β-cells inhibits insulin production, leading to diabetes. Diabetes treatment...
336


