Related Experiment Video
Updated: Apr 12, 2026

A RAPID Method for Blood Processing to Increase the Yield of Plasma Peptide Levels in Human Blood
Published on: April 28, 2016
Antifibrotic activity of acylated and unacylated ghrelin
Elia Angelino1, Simone Reano1, Michele Ferrara1
1Department of Translational Medicine, University of Piemonte Orientale, Via Solaroli 17, 28100 Novara, Italy.
Abstract:
Fibrosis can affect almost all tissues and organs, it often represents the terminal stage of chronic diseases, and it is regarded as a major health issue for which efficient therapies are needed. Tissue injury, by inducing necrosis/apoptosis, triggers inflammatory response that, in turn, promotes fibroblast activation and pathological deposition of extracellular matrix. Acylated and unacylated ghrelin are the main products of the ghrelin gene. The acylated form, through its receptor GHSR-1a, stimulates appetite and growth hormone (GH) release. Although unacylated ghrelin does not bind or activate GHSR-1a, it shares with the acylated form several biological activities. Ghrelin peptides exhibit anti-inflammatory, antioxidative, and antiapoptotic activities, suggesting that they might represent an efficient approach to prevent or reduce fibrosis. The aim of this review is to summarize the available evidence regarding the effects of acylated and unacylated ghrelin on different pathologies and experimental models in which fibrosis is a predominant characteristic.
Insights
Ghrelin peptides, both acylated and unacylated, show promise in combating fibrosis. These compounds possess anti-inflammatory and anti-apoptotic properties beneficial for treating fibrotic diseases.
Area of Science:
- Biomedical Sciences
- Molecular Biology
- Pathology
Background:
- Fibrosis is a significant health concern, often marking the end stage of chronic diseases.
- Tissue injury initiates inflammation, leading to fibroblast activation and excessive extracellular matrix deposition.
- Ghrelin, a peptide hormone, exists in acylated and unacylated forms with distinct and overlapping biological functions.
Purpose of the Study:
- To review the therapeutic potential of ghrelin peptides in fibrotic conditions.
- To consolidate evidence on the anti-fibrotic effects of acylated and unacylated ghrelin.
- To explore ghrelin's role in mitigating fibrosis across various pathologies and experimental models.
Main Methods:
- Literature review of studies investigating ghrelin peptides and fibrosis.
- Analysis of experimental models exhibiting fibrotic characteristics.
- Examination of diverse pathological conditions associated with fibrosis.
Main Results:
- Ghrelin peptides demonstrate anti-inflammatory, antioxidative, and antiapoptotic activities.
- Evidence suggests ghrelin's potential to prevent or reduce pathological fibrosis.
- Both acylated and unacylated ghrelin show biological activities relevant to fibrotic disease management.
Conclusions:
- Ghrelin peptides represent a promising therapeutic strategy for fibrotic diseases.
- Further research into ghrelin's anti-fibrotic mechanisms is warranted.
- Targeting ghrelin pathways could offer novel treatments for conditions characterized by fibrosis.
Related Concept Videos
Glucagon-like Receptor Agonists
GLP-1, when administered in high doses intravenously, triggers insulin secretion, inhibits glucagon release, slows gastric emptying, reduces food intake, and restores normal insulin secretion. However, its rapid inactivation by...
Oral Hypoglycemic Agents: Glinides
GPCRs Regulate Adenylyl Cylase Activity
Oral Hypoglycemic Agents: α-Glucosidase Inhibitors
Acarbose and miglitol are...
Dipeptidyl Peptidase 4 Inhibitors
Drugs Affecting GI Tract Motility: Serotonin Receptor Agonists

