人类糖尿病病的空间蛋白质学,从健康到III类
Ayano Kondo1, Monee McGrady1, Dhiraj Nallapothula2
1Enable Medicine, Menlo Park, CA, USA.
Diabetologia
|July 22, 2024
概括
糖尿病病 (DKD) 涉及炎症和原沉积的增加,细胞变化和组织中的蛋白质损失. 我们的空间组织蛋白质组学 (STEP) 管道揭示了人类DKD病理生理学.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 蛋白质组学是指蛋白质组学.
- 免疫光效应 免疫光效应
背景情况:
- 糖尿病病 (DKD) 是全球衰竭的主要原因之一.
- 了解人类的DKD分子机制对于开发有效的治疗方法至关重要.
研究的目的:
- 通过空间组织蛋白质学 (STEP) 研究人类糖尿病病 (DKD) 中的分子和细胞变化.
- 确定关键的细胞变化和与DKD进展相关的微环境变化.
主要方法:
- 利用空间组织蛋白质组学 (STEP) 管道,在人类脏组织上进行多重免疫光.
- 分析了21种蛋白质在不同的DKD阶段和健康对照中的表达.
- 确定了11个不同的细胞群,并分析了它们的空间关系.
主要成果:
- DKD进展与炎症细胞增加和 IV 原沉积相关.
- 观察到与此同时在脏片段中出现原生蛋白质的损失.
- 在DKD中,管状细胞和αSMA+细胞相邻的炎症细胞显著增加.
- 在DKD进展中显著的区域和个体间的变化.
结论:
- STEP 管道有效地揭示了人类 DKD 中蛋白质表达,细胞组成和微环境的变化.
- 这些发现证明了管道在阐明DKD病理生理学方面的力量.
- 确定了与DKD进展相关的关键细胞和分子变化.
相关概念视频
Diabetic Nephropathy
Definition Diabetic nephropathy is a chronic kidney complication that results from prolonged hyperglycemia.Prevalence It is the most common cause of chronic kidney disease (CKD) and end-stage renal disease (ESRD) worldwide, affecting up to half of individuals with diabetes.Pathophysiology • Sustained hyperglycemia triggers multiple hemodynamic and metabolic changes in the kidney. • Early in the disease, increased renal blood flow and glomerular hyperfiltration occur due to afferent arteriolar...
Type II Diabetes II: Pathophysiology
PathophysiologyType 2 diabetes mellitus (T2DM ) is a chronic metabolic disorder characterized by insulin resistance and progressive pancreatic β-cell dysfunction, leading to impaired glucose homeostasis. It results from interactions among genetic predisposition, environmental factors, and metabolic stressors, such as overnutrition and a sedentary lifestyle.Insulin Resistance and Glucose DysregulationEarly T2DM involves insulin resistance in skeletal muscle, adipose tissue, and the liver.
Type I Diabetes III: Clinical Manifestations
Type 1 diabetes mellitus typically presents with rapid-onset symptoms due to the body’s inability to utilize glucose in the absence of insulin. Since insulin is required for glucose uptake into cells, its deficiency leads to hyperglycemia and cellular energy deprivation, resulting in characteristic clinical features.Polyuria and PolydipsiaOne of the earliest, most prominent symptoms is polyuria (excessive urination). When blood glucose concentrations rise above the renal threshold, the kidneys...
Type I Diabetes II: Pathophysiology
Type 1 diabetes mellitus arises from an immune-mediated destruction of pancreatic β-cells, resulting in an absolute deficiency of insulin. This process develops in genetically susceptible individuals when autoimmunity, environmental exposures, and immunologic dysregulation converge to trigger a targeted attack on the insulin-producing cells of the pancreas. The β-cells are located within the islets of Langerhans and are essential for regulating blood glucose by facilitating cellular uptake of...
Chronic Kidney Disease I: Introduction
Chronic Kidney Disease (CKD) arises when the kidneys progressively lose their ability to function, ultimately leading to end-stage renal disease. At this advanced stage, the kidneys can no longer filter waste or maintain essential body functions, requiring renal replacement therapy (RRT) through dialysis or a kidney transplant for survival.Early-stage chronic kidney disease and detection challengesIn CKD's early stages, symptoms often remain absent because healthy nephrons compensate for...
Chronic Kidney Disease III: Interprofessional Care
Chronic kidney disease (CKD) requires collaborative and comprehensive management. CKD progresses through stages and can lead to end-stage kidney disease (ESKD) if untreated. Interprofessional collaboration and patient education are crucial, enabling patients to manage their health and improve their quality of life.Diagnostic approach for chronic kidney diseaseThe diagnosis of CKD primarily focuses on the glomerular filtration rate (GFR), which assesses kidney function by measuring how well...


