CD40-CD40 ligand interactions in oxidative stress, inflammation and vascular disease

Muhammad Rizvi1, Didi Pathak, Jane E Freedman

  • 1Whitaker Cardiovascular Institute and Evans Department of Medicine, Boston University School of Medicine, Boston, MA 02118, USA.

Insights

CD40 ligand (CD40L) and CD40 interactions drive inflammation and oxidative stress, destabilizing atherosclerotic plaques. Targeting these pathways may offer new treatments for inflammatory and vascular diseases.

Area of Science:

  • Immunology
  • Cardiovascular Biology
  • Molecular Medicine

Background:

  • CD40 ligand (CD40L) and its receptor CD40 are key mediators in inflammatory pathways.
  • These interactions are implicated in atherosclerosis, immune disorders, and oxidative stress.
  • CD40-CD40L signaling affects both immunological and cardiovascular systems.

Purpose of the Study:

  • To discuss the emerging role of CD40-CD40L-mediated processes in oxidative stress, inflammation, and vascular diseases.
  • To highlight the significance of CD40-CD40L interactions in pathophysiological processes.

Main Methods:

  • Literature review and synthesis of recent studies.
  • Discussion of molecular mechanisms and signaling pathways involved.

Main Results:

  • CD40-CD40L interactions destabilize atherosclerotic plaques by inducing inflammatory mediators.
  • These interactions regulate oxidative stress in immune and non-immune cells.
  • CD40-CD40L signaling impacts diverse inflammatory and vascular conditions.

Conclusions:

  • Understanding CD40-CD40L-mediated oxidative signaling is crucial for developing novel therapeutics.
  • Targeting CD40-CD40L pathways holds promise for treating various inflammatory and cardiovascular diseases.

Related Concept Videos

Regulation of Angiogenesis and Blood Supply01:24

Regulation of Angiogenesis and Blood Supply

Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits.  Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl hydroxylase and factor...
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,...
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,...
Inflammation01:38

Inflammation

Overview