CGRP signaling Calcitonin Gene-Related Peptide: Physiology and Pathophysiology
Calcitonin gene-related peptide (CGRP) is a 37-amino acid neuropeptide that plays a crucial role in a variety of physiological and pathophysiological processes作者:SJ Wimalawansa·1996·被引用次数:667—THE calcitonin (CT) andcalcitonin gene-related peptide (CGRP) are derived from the CT/CGRP gene, which is localized in chromosome 11. Alternative splicing of .... Primarily localized to sensory nerve fibers, CGRP is a potent vasodilator and is involved in functions such as inflammation, intestinal motility, and apoptosisTitle: Calcitonin gene-related peptide (CGRP) in the ... - Reed. Understanding the intricate physiology and pathophysiology of CGRP is essential for comprehending its involvement in conditions ranging from migraine to cardiovascular regulation.
The Multifaceted Physiology of CGRP
CGRP is derived from the calcitonin gene through alternative RNA splicing, leading to two main isoforms: \u03b1CGRP and \u03b2CGRP. These isoforms are widely expressed throughout the body, with significant presence in both the central and peripheral nervous systems, as well as in cardiovascular tissues.Calcitonin Gene-Related Peptide and Its Receptors
* Vascular Effects: One of CGRP's most prominent physiological roles is its potent vasodilatory action. This effect is mediated through specific G-protein-coupled receptors, which are heteromeric complexes involving the calcitonin receptor-like receptor (CLR) and a single-transmembrane protein called RAMP1. By promoting vasodilation, CGRP influences blood flow regulation and plays a part in maintaining vascular toneCalcitonin: What It Is, Function & Levels - Cleveland Clinic. Indeed, CGRP circulates at concentrations significantly higher than calcitonin, suggesting its importance as a physiological regulator of vascular tone. Its systemic effects can include an increase in pulmonary blood flow.Editorial: Calcitonin Gene-Related Peptide: Novel Biology ...
* Inflammation and Pain: CGRP is released from sensory nerves in response to various stimuli, contributing to inflammatory responses. It can modulate the function of immune cells, such as T cells, and is implicated in the neurogenic inflammation observed in certain conditions2023年9月12日—This review summarizes the current understanding of the role ofcalcitonin gene-related peptide (CGRP) in the physiology and pathophysiology .... Its role in pain signaling, particularly in migraine pathophysiology, is well-established.
* Gastrointestinal Function: CGRP also exerts effects on the gastrointestinal tract, influencing intestinal motility and contributing to the gut-brain axis.
* Other Roles: Beyond these primary functions, CGRP is involved in apoptosis and may have other less understood systemic effects.
CGRP in Pathophysiology: From Migraine to Cardiovascular Disease
The dysregulation of CGRP signaling is implicated in several disease states. The exploration of CGRP's involvement in pathophysiology has opened avenues for therapeutic interventions.
* Migraine: CGRP is a key mediator in migraine pathophysiology(PDF) Calcitonin gene-related peptide (CGRP). Elevated levels of CGRP are observed during migraine attacks, and it is believed to contribute to the cranial vasodilation and pain associated with these headaches. This understanding has led to the development of CGRP monoclonal antibodies and small molecule antagonists specifically targeting the CGRP pathway for migraine treatment.A key mediator in the gut-brain axis - UCrea
* Cardiovascular Conditions: Given its potent vasodilatory properties, CGRP plays a role in cardiovascular health and disease. Its receptors are crucial for maintaining cerebrovascular reactivity, particularly in conditions like chronic hypertension. Imbalances in CGRP signaling can contribute to various cardiovascular issues.作者:SI Girgis·1985·被引用次数:213—CGRP circulates at five times the concentration of calcitonin, suggesting that it may be an important physiological regulator of vascular tone ...
* Inflammatory Diseases: The involvement of CGRP in inflammation suggests its potential role in various inflammatory diseases, although research in this area is ongoing.
Therapeutic Targeting of CGRP
The significant role of CGRP in various pathophysiological processes, especially migraine, has spurred considerable research into therapeutic strategies that target the CGRP systemCalcitonin Gene-Related Peptide: Physiology and .... This includes the development of:
* CGRP Receptor Antagonists: Small molecules designed to block the binding of CGRP to its receptor.
* CGRP Monoclonal Antibodies: Antibodies that target CGRP itself or its receptor, preventing CGRP from exerting its effects.
These targeted therapies represent a paradigm shift in the management of conditions like migraine, offering novel treatment options for patients.
In conclusion, calcitonin gene-related peptide is a vital neuropeptide with diverse physiological functions, prominently including vasodilation and modulation of inflammation作者:Z Kee·2018·被引用次数:238—Calcitonin gene-related peptide (CGRP) is a highly potent vasoactive peptide released from sensory nerves, which is now proposed to have protective effects .... Its dysregulation is central to the pathophysiology of conditions such as migraine, making the CGRP system a significant target for therapeutic interventionRoles of calcitonin gene-related peptide in the skin, and .... Further research continues to unravel the complexities of CGRP's roles in health and disease.
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