Related Experiment Video
Updated: May 6, 2026
05:07
Characterizing Extracellular Vesicles from Biological Fluids
Published on: February 28, 2025
1.0K
Extracellular vesicles: structure, function, and potential clinical uses in renal diseases
F T Borges1, L A Reis, N Schor
1Divisão de Nefrologia, Departamento de Medicina, Universidade Federal Paulista, Escola Paulista de Medicina, São PauloSP, Brasil.
Summary
Extracellular vesicles, including exosomes, are key for intercellular communication and show promise as drug delivery vehicles and diagnostic biomarkers for diseases like cancer and kidney disease.
Area of Science:
- Biochemistry
- Cell Biology
- Nanotechnology
Background:
- Extracellular vesicles (EVs) are increasingly recognized for their roles in disease.
- Exosomes and microvesicles are the most studied EVs, differing in size and biogenesis.
- EVs are found in various biological fluids and are implicated in intercellular communication.
Purpose of the Study:
- To review the synthesis and function of EVs, particularly exosomes.
- To explore the therapeutic potential of EVs in diseases.
- To focus on the role of EVs in renal functions and diseases.
Main Methods:
- Literature review of extracellular vesicle research.
- Analysis of EV classification based on size, content, and function.
- Focus on exosomes and microvesicles characterization.
Main Results:
- Exosomes (40-100 nm) mediate intercellular communication via endosomal pathway.
- Microvesicles (100-1000 nm) bud from the plasma membrane.
- EVs offer broad therapeutic potential as drug delivery systems and diagnostic biomarkers.
Conclusions:
- Extracellular vesicles, especially exosomes, have significant therapeutic potential.
- Stem cell-derived EVs show promise for treating diseases like kidney disease.
- Further research into EV mechanisms and applications is warranted.
Related Concept Videos
01:36Overview of Exosomes
2.8K
Exosomes are stable, lipid bilayer-enclosed vesicles capable of crossing biological barriers. They can carry a wide range of molecules required for intercellular communication. Once exosomes are released from the cell where they originated, they enter a recipient cell through various pathways such as fusion, receptor-mediated endocytosis, macropinocytosis, and phagocytosis.
Stahl et al. discovered exosomes in 1983, but the exosomes were initially considered waste products released from the...
Stahl et al. discovered exosomes in 1983, but the exosomes were initially considered waste products released from the...
2.8K
01:28Renal Drug Excretion: Tubular Secretion
1.2K
Active tubular secretion is a robust, energy-demanding process that utilizes carrier systems to transport drugs into renal tubules. The active renal secretion systems include the organic anion transporter (OAT) for weak acids and the organic cation transporter (OCT) for weak bases. Structurally similar drugs can compete for the same transporter, potentially leading to drug accumulation and toxicity. However, this principle can be exploited therapeutically. One example is probenecid (Probalan),...
1.2K
01:20Renal Corpuscle
8.6K
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...
8.6K
01:25Renal Drug Excretion: Tubular Reabsorption
1.3K
Tubular reabsorption, a process occurring post-glomerular filtration of drugs in the renal tubule, is a critical determinant of drug half-life. During the process of renal excretion, as the glomerular filtrate progresses to the distal convoluted tubule (DCT), drugs that are highly permeable, lipophilic, and nonionized undergo passive reabsorption from the tubular fluid into the surrounding peritubular capillaries. This reabsorption process restricts their elimination through the kidneys. This...
1.3K
01:15Renal Drug Excretion: Overview
1.1K
As primary excretory organs, the kidneys maintain homeostasis by removing waste substances from the bloodstream. They comprise over a million units called nephrons, which serve as the kidney's functional units.
A nephron consists of two primary structures: the renal corpuscle and the renal tubule. The renal corpuscle contains the glomerulus, a network of capillaries where the first step of renal excretion, glomerular filtration, occurs. Blood pressure forces water, ions, and small molecules...
A nephron consists of two primary structures: the renal corpuscle and the renal tubule. The renal corpuscle contains the glomerulus, a network of capillaries where the first step of renal excretion, glomerular filtration, occurs. Blood pressure forces water, ions, and small molecules...
1.1K
01:26Extracorporeal Removal of Drugs: Continuous Renal Replacement Therapy
420
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...
420