Role of Inflammatory and Proresolving Mediators in Endothelial Dysfunction

Ana M Briones1,2,3, Raquel Hernanz2,3,4, Ana B García-Redondo2,3,5

  • 1Department of Pharmacology, Faculty of Medicine, Universidad Autónoma de Madrid, Madrid, Spain.

Insights

Inflammation drives cardiovascular diseases (CVDs). Specialized pro-resolving mediators (SPMs) show promise in treating CVDs by resolving inflammation and initiating tissue repair, offering new therapeutic avenues.

Area of Science:

  • Cardiovascular Science
  • Inflammation Biology
  • Immunology

Background:

  • Excessive local inflammation is a key mechanism in cardiovascular diseases (CVDs) like hypertension and atherosclerosis.
  • Inflammatory cytokines impair endothelial function by increasing oxidative stress and reducing nitric oxide (NO) availability.
  • Current anti-inflammatory therapies are not widely indicated for most CVDs.

Purpose of the Study:

  • To review the role of inflammation and specialized pro-resolving mediators (SPMs) in vascular dysfunction in CVDs.
  • To explore the therapeutic potential of SPMs in cardiovascular conditions.

Main Methods:

  • Literature review of recent advances in inflammation and SPM research in CVDs.
  • Analysis of studies on SPM receptor expression and function in vascular and immune cells.
  • Examination of evidence from animal models regarding SPM receptor activation in CVDs.

Main Results:

  • SPMs, derived from omega-3 and omega-6 fatty acids, actively resolve inflammation and promote tissue repair.
  • SPM receptors are present in vascular and immune cells, regulating key processes like phagocytosis and cytokine production.
  • Activation of SPM receptors demonstrates protective effects on vascular function and structure in various CVD models.

Conclusions:

  • SPMs represent a promising therapeutic strategy for managing cardiovascular diseases by targeting inflammation.
  • Further research into SPM pathways could lead to novel treatments for hypertension, atherosclerosis, and aortic aneurysms.

Related Concept Videos

Inflammation01:38

Inflammation

Overview
Inflammatory Response I: Vascular and Cellular01:30

Inflammatory Response I: Vascular and Cellular

The inflammatory response is the body's defense against infection, injury, or irritation from bacteria, trauma, toxins, or heat. Inflammation helps locate and destroy pathogens and remove damaged tissue elements to heal the body. During this initial phase, fluid, blood products, and nutrients migrate to the injured area, resulting in redness, heat, swelling, ache, and loss of function. Moreover, signs of systemic inflammation include fever, increased WBC count, malaise, anorexia, nausea,...
Inflammatory Response01:28

Inflammatory Response

An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Acute Inflammation I: Inflammatory Response01:26

Acute Inflammation I: Inflammatory Response

Acute inflammation is a rapid, short-lived physiological response to tissue injury or infection, designed to eliminate harmful agents and initiate repair. This tightly regulated process typically lasts from minutes to several days and is triggered by factors such as microbial invasion, physical trauma, or chemical injury.Recognition and Mediator ReleaseThe inflammatory response begins when resident immune cells—such as mast cells, macrophages, and dendritic cells—detect damage-associated...
Acute Inflammation II: Cellular Phase01:26

Acute Inflammation II: Cellular Phase

The cellular phase of acute inflammation is a tightly orchestrated sequence of events that recruits leukocytes, primarily neutrophils, to sites of tissue injury or infection. Following the initial vascular changes, this phase ensures effective immune cell migration, activation, and function at the affected site to eliminate pathogens and initiate tissue repair.Leukocyte Recruitment CascadeLeukocyte recruitment happens in four steps: margination, adhesion, transmigration, and chemotaxis. Reduced...
Acute Inflammation III: Local and Systemic Effects01:25

Acute Inflammation III: Local and Systemic Effects

Acute inflammation produces a coordinated set of local and systemic changes that limit injury, eliminate pathogens, and initiate repair. These responses arise within minutes of infection, trauma, or chemical insult and are driven by vascular alterations and leukocyte-derived mediators. When the stimulus resolves, the reaction typically abates within days.Local EffectsAt the site of injury, arteriolar vasodilation increases blood flow, resulting in redness and warmth. Simultaneously, increased...