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Soluble CD40L and its role in essential hypertension: diagnostic and therapeutic implications
Patrizia Ferroni1, Fiorella Guadagni
1Department of Laboratory Medicine & Advanced Biotechnologies, IRCCS San Raffaele, Via della Pisana 235, Rome, Italy. patrizia.ferroni@sanraffaele.it
Insights
Soluble CD40 ligand (sCD40L) is elevated in hypertension, linking inflammation and vascular damage. This review explores sCD40L
Area of Science:
- Cardiovascular Biology
- Hypertension Pathophysiology
- Inflammatory Medicine
Background:
- Soluble CD40 ligand (sCD40L) acts as a molecular link between inflammation, thrombosis, and angiogenesis in vascular damage.
- Hypertension is increasingly recognized as an inflammatory disorder, highlighting the importance of the CD40/CD40L pathway.
- The CD40/CD40L system serves as a versatile signaling pathway within vascular cells, integrating inflammatory signals.
Purpose of the Study:
- To review the current understanding of soluble CD40 ligand's role in hypertension.
- To elucidate the contribution of sCD40L to inflammation, thrombosis, and neoangiogenesis in the context of hypertension.
- To discuss the impact of antihypertensive treatments on these sCD40L-mediated phenomena.
Main Methods:
- Literature review summarizing current research on CD40/CD40L signaling in hypertension.
- Analysis of studies investigating the link between angiotensin II, CD40/CD40L ligation, and vascular inflammation.
- Examination of data on sCD40L levels in hypertensive patients and their association with cardiovascular risk.
Main Results:
- Elevated sCD40L levels are observed in hypertensive patients.
- sCD40L may serve as a biomarker for cardiovascular event risk in hypertensive individuals.
- Angiotensin II can enhance CD40/CD40L-induced inflammatory activation in vascular cells.
Conclusions:
- The CD40/CD40L system is a critical link in hypertension pathophysiology, connecting inflammation, thrombosis, and angiogenesis.
- sCD40L is implicated in vascular damage associated with hypertension and may predict cardiovascular events.
- Antihypertensive drugs may possess pleiotropic effects influencing the CD40/CD40L pathway.
Abstract:
Soluble CD40 ligand (sCD40L) is involved in the pathogenesis of risk factor-related vascular damage and has been regarded as a molecular link between inflammation, thrombosis and angiogenesis. Given the increasingly recognized theory that hypertension is in part an inflammatory disorder, the contribution of CD40/CD40L dyad is becoming one of the outstanding puzzles in the pathophysiology of hypertension. CD40/CD40L signaling appears, in fact, like a versatile pathway that vehicles information within vascular cells. Several distinct lines of investigation in the context of hypertension dealing with low-grade inflammation are now merging, with CD40/CD40L system as the missing link. As an example, recent data suggest that the vasoactive peptide angiotensin II promotes and augments the inflammatory activation induced by CD40/CD40L ligation in human vascular cells. Accordingly, sCD40L levels are elevated in hypertensive patients and might discriminate hypertensive patients at a high risk of cardiovascular events. This review will summarize the present understanding of the contribution of sCD40L to inflammation, thrombosis and neoangiogenesis in hypertension. Furthermore, given the well established effects that antihypertensive drugs exert on the vasculature beyond blood pressure lowering (pleiotropic effects), we will also discuss the effects of antihypertensive treatment on these phenomena.
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