Related Experiment Video
Updated: May 11, 2026
09:43
Epithelial Cell Repopulation and Preparation of Rodent Extracellular Matrix Scaffolds for Renal Tissue Development
Published on: August 10, 2015
16.0K
Extracellular Vesicle Transplantation Is Beneficial for Acute Kidney Injury
Amankeldi A Salybekov1,2, Shigeaki Okamura2, Takayasu Ohtake1,2,3
1Kidney Disease and Transplant Center, Shonan Kamakura General Hospital, 1-1370 Okamoto, Kamakura 2478533, Japan.
Cells
|August 28, 2024
Summary
Regeneration-associated cell-derived extracellular vesicles (RACev) show therapeutic potential for kidney injury. Systemic injection of RACev improved kidney function and reduced tissue damage in a renal ischemia-reperfusion injury model.
Area of Science:
- Regenerative Medicine
- Extracellular Vesicles
- Renal Pathophysiology
Background:
- Peripheral blood mononuclear cells (PBMCs) can transform into pro-regenerative cells (RACs) under vasculogenic conditioning.
- RACs generate extracellular vesicles (RACev) with potential therapeutic applications.
- Renal ischemia-reperfusion injury (R-IRI) is a critical condition requiring effective treatments.
Purpose of the Study:
- To evaluate the therapeutic efficacy of RACev in a preclinical model of R-IRI.
- To compare RACev treatment with a vehicle control in mitigating kidney injury.
Main Methods:
- Human PBMCs were cultured to generate RACs, from which RACev were isolated and characterized.
- RACev were administered systemically to a mouse model of R-IRI.
- Kidney function (serum creatinine, BUN) and histology (fibrosis, capillary density) were assessed.
Main Results:
- RACev treatment significantly reduced serum creatinine and blood urea nitrogen levels.
- Histological analysis revealed decreased fibrosis and enhanced capillary density in RACev-treated kidneys.
- RACev demonstrated preferential accumulation in the injured kidney, delivering microRNAs to modulate key injury pathways.
Conclusions:
- Systemic transplantation of RACev effectively restores kidney function following R-IRI.
- RACev exert protective effects through anti-fibrosis, anti-inflammation, and pro-angiogenesis mechanisms.
- MicroRNA delivery by RACev plays a crucial role in mitigating R-IRI by targeting inflammatory and hypoxia pathways.
Related Concept Videos
01:26Extracorporeal Removal of Drugs: Continuous Renal Replacement Therapy
Continuous Renal Replacement Therapy (CRRT) is an essential intervention for patients experiencing severe kidney dysfunction. This therapy offers a continuous mechanism for removing fluids and toxins from the bloodstream, leveraging the patient’s blood pressure to facilitate filtration through a specialized filter. This method contrasts with intermittent dialysis, providing a gentler and more consistent removal of waste products and excess fluid, which is particularly beneficial in critically...
01:28Kidney Transplant I: Introduction
A kidney transplant is a surgical approach that involves replacing a non-functioning kidney with a healthy one from a donor. This procedure is often a treatment option for end-stage renal disease (ESRD) patients. The method requires careful recipient selection, including evaluating various medical and psychosocial factors. These criteria vary between transplant centers but generally include assessments of the patient's overall health, adherence to medical recommendations, and lifestyle...
01:22Acute Kidney Injury I: Introduction
Introduction:Acute Kidney Injury (AKI) describes a swift decrease in kidney function occurring over hours to days, characterized by the kidneys' failure to remove waste products from the bloodstream. This leads to dangerous complications like metabolic acidosis, fluid overload, and electrolyte imbalances, such as hyperkalemia, which can cause life-threatening arrhythmias. AKI is common in both hospital and outpatient settings, often triggered by dehydration, sepsis, or exposure to nephrotoxic...
01:29Acute Kidney Injury II: Pathophysiology
Acute kidney injury (AKI) causes are categorized into three primary categories based on the location of the injury: prerenal, intrarenal (or intrinsic), and postrenal causes. This classification guides clinical management and illustrates how different pathways can impair kidney function.Etiology and Pathophysiology of Acute Kidney Injury1. Prerenal causesEtiology: Prerenal Acute Kidney Injury, the most common type, occurs when reduced blood flow to the kidneys decreases filtration capacity...
01:30Acute Kidney Injury IV: Diagnostic Studies and Prevention
Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
01:20Acute Kidney Injury V: Interprofessional Care
Acute Kidney Injury (AKI) requires a collaborative healthcare approach to restore renal function and prevent complications. Essential management strategies involve monitoring fluid and electrolyte balance, adjusting medications, initiating dialysis when necessary, and providing nutritional support.Fluid and Electrolyte ManagementFluid Monitoring: Regularly monitoring body weight, central venous pressure, and urine output helps detect fluid imbalances early. Patient intake and output are...