Related Experiment Video
Updated: Jun 30, 2025
07:15
Mechanism of Kemeng Fang's Inhibition of Podocyte Apoptosis in Rats with Membranous Nephropathy through the PI3K/AKT Signaling Pathway
Published on: August 23, 2024
409
Obesity-related glomerulopathy is associated with elevated WT1 expression in podocytes
Sneha Jakhotia1, Rajesh Kavvuri2, Sumathi Raviraj2
1Department of Biochemistry, ICMR-National Institute of Nutrition, Hyderabad, 500007, TS, India.
International Journal of Obesity (2005)
|March 20, 2024
Summary
Obesity significantly increases chronic kidney disease (CKD) risk. This study found elevated WT1 expression in kidney podocytes of obese animal models and human CKD patients, suggesting a novel role in obesity-related glomerulopathy (ORG) pathogenesis.
Area of Science:
- Nephrology
- Molecular Biology
- Obesity Research
Background:
- Obesity is a major global health concern, escalating the incidence of cardiovascular, metabolic diseases, and chronic kidney disease (CKD).
- Obesity-related glomerulopathy (ORG) and kidney dysfunction are linked to hemodynamic, metabolic, and lipotoxic factors, but precise mechanisms remain unclear.
Purpose of the Study:
- To investigate the molecular mechanisms driving obesity-related glomerulopathy (ORG).
- To explore the role of WT1 in the pathogenesis of kidney disease associated with obesity.
Main Methods:
- Utilized spontaneous obese WNIN/Ob rats and high-fat diet-induced obese mice models.
- Assessed kidney function, glomerular structure, and podocyte morphology.
- Analyzed gene expression in rodents and compared with human CKD patient data via Nephroseq and Kidney Precision Medicine Project databases.
Main Results:
- Both obese rat and mouse models exhibited proteinuria and glomerular deformities, including glomerulosclerosis and podocyte injury.
- Elevated expression of the transcription factor WT1 was observed in podocytes of obese models and human CKD patients.
- Altered expression of WT1 targets suggests WT1 induces a podocyte mesenchymal phenotype.
Conclusions:
- Elevated WT1 expression in adult podocytes is a novel finding in obesity-related kidney disease.
- WT1 may play a significant role in the pathogenesis of obesity-related glomerulopathy (ORG).
- Further research is needed to elucidate the exact mechanisms of WT1 induction and its specific role in podocyte dysfunction.
Related Concept Videos
01:21External Anatomy of the Kidney
1.1K
The kidneys are a pair of bean-shaped organs in the human body that play a critical role in maintaining overall health. They filter out waste products from the blood, regulate blood pressure, maintain electrolyte balance, and stimulate the production of red blood cells.
The kidneys are located in the retroperitoneal space on either side of the vertebral column, protected posteriorly by the 11th and 12th ribs. The right kidney sits slightly lower than the left owing to the presence of the liver...
The kidneys are located in the retroperitoneal space on either side of the vertebral column, protected posteriorly by the 11th and 12th ribs. The right kidney sits slightly lower than the left owing to the presence of the liver...
1.1K
01:24Obesity
498
The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in...
498
01:20Renal Corpuscle
2.1K
The glomerulus and Bowman's capsule are two essential components of the nephron, which is the functional unit of the kidney. These microscopic structures play a critical role in the process of blood filtration to produce urine.
Glomerulus: Structure and Function
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous...
Glomerulus: Structure and Function
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous...
2.1K
02:54Canonical Wnt Signaling Pathway
8.7K
The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which...
8.7K
01:11Genome-wide Association Studies-GWAS
13.4K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
13.4K