Related Experiment Video
Updated: Feb 1, 2026
07:45
Tear-Derived Exosomal miR-15a as New Diagnostic Tool for Diabetic Retinopathy
Published on: December 30, 2025
383
Exosomes and diabetes
Carlos Castaño1,2, Anna Novials1,2, Marcelina Párrizas1,2
1Diabetes and Obesity Research Laboratory, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.
Diabetes/Metabolism Research and Reviews
|December 5, 2018
Summary
Small vesicles called exosomes, released by tissues like fat, influence gene expression and inter-organ communication, playing a role in diabetes development. Studying exosomes may lead to new biomarkers for early diabetes diagnosis and personalized treatments.
Area of Science:
- Metabolic diseases
- Endocrinology
- Cell biology
Background:
- Diabetes mellitus is characterized by hyperglycemia, stemming from insufficient insulin action or insulin resistance.
- Inter-organ communication is crucial for maintaining glucose homeostasis.
- Exosomes, small vesicles secreted by various cells including adipose tissue, are emerging as key mediators of intercellular communication.
Purpose of the Study:
- To investigate the role of exosomes in the pathophysiology of diabetes and its complications.
- To explore the potential of exosomes as biomarkers for early diabetes diagnosis and patient stratification.
- To understand the molecular pathways regulated by exosomes during metabolic stress.
Main Methods:
- Analysis of exosome release and function in metabolic disease models.
- Characterization of exosome content and their impact on gene expression in recipient tissues.
- Investigating exosome-mediated inter-organ crosstalk in the context of glucose homeostasis.
Main Results:
- Exosomes secreted by adipose tissue modulate gene expression in other organs, influencing inter-organ crosstalk.
- Evidence suggests exosomes actively participate in the development and progression of diabetes.
- Exosomes represent a novel mechanism contributing to the complex pathophysiology of diabetes.
Conclusions:
- Exosomes are implicated in diabetes development and its associated life-threatening complications.
- Exosome research offers potential for novel biomarkers for early diabetes detection and personalized therapeutic strategies.
- Further molecular dissection of exosome-mediated pathways can deepen our understanding of metabolic diseases.
Related Concept Videos
01:20Pathophysiology of Diabetes
3.6K
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,...
3.6K
01:36Overview of Exosomes
3.7K
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...
3.7K
01:15Diabetes: Management and Pharmacotherapy
1.1K
The therapy for diabetes aims to alleviate hyperglycemia-related symptoms, prevent acute metabolic decompensation, and reduce chronic end-organ complications. Glycemic control is evaluated through short-term (self-monitoring, continuous glucose monitoring) and long-term (A1c, fructosamine) metrics, enabling near real-time tracking of blood glucose levels and reflecting glycemic control over specific time frames.
Insulin remains the cornerstone of treatment for most patients with type 1 and many...
Insulin remains the cornerstone of treatment for most patients with type 1 and many...
1.1K
01:19Psychoneuroimmunology: Diabetes and Cancer
500
Chronic stress has been linked to both the onset and progression of serious health conditions, including Type 2 diabetes and cancer. Type 2 diabetes, a widespread chronic illness, is closely associated with obesity and insulin resistance, both of which often worsen under stress. Studies indicate that men experiencing high levels of chronic stress face a 45% higher risk of developing diabetes compared to those with minimal stress. Stress triggers physiological responses that elevate blood...
500
01:22Diabetes Mellitus: Type 2 and Gestational
5.0K
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...
5.0K
01:15Diabetes: Symptoms, Diagnosis, and Complications
2.3K
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...
2.3K