Abstract
Phenylbutyrate (PBA) is an aromatic short-chain fatty acid which is a chemical derivative of butyric acid naturally produced by colonic bacteria fermentation. At the intestinal level butyrate exerts a multitude of activities including amelioration of mucosal inflammation, regulation of transepithelial fluid transport, improvement in oxidative status and colon cancer prevention. Moreover, increasing number of studies report the beneficial role of butyric acid in prevention or inhibition of other types of malignancies, leading to cancer cell growth arrest and apoptosis. Similarly, phenylbutyrate displays potentially favorable effects on many pathologies including cancer, genetic metabolic syndromes, neuropathies, diabetes, hemoglobinopathies, and urea cycle disorders. The mechanisms by which PBA exerts these effects are different. Some of them are connected with the regulation of gene expression, playing the role of a histone deacetylase inhibitor, while others contribute to the ability of rescuing conformational abnormalities of proteins, serving as chemical chaperone, and some are dedicated to its metabolic characteristic enabling excretion of toxic ammonia, thus acting as ammonia scavenger. Phenylbutyrate may exert variable effects depending on the cell type, thus the term “butyrate paradox” has been proposed. These data indicate a broad spectrum of beneficial effects evoked by PBA with a high potential in therapy. In this review, we focus on cellular and systemic effects of PBA treatment with special attention to the three main branches of its molecular activity: ammonia scavenging, chaperoning and histone deacetylase inhibiting, and describe its particular role in various human diseases.
Keywords: Ammonia scavenger, butyric acid, chemical chaperone, ER stress, histone deacetylase inhibitor, phenylbutyrate.
Current Pharmaceutical Design
Title:Phenylbutyric Acid: Simple Structure - Multiple Effects
Volume: 21 Issue: 16
Author(s): Magdalena Kusaczuk, Marek Bartoszewicz and Marzanna Cechowska-Pasko
Affiliation:
Keywords: Ammonia scavenger, butyric acid, chemical chaperone, ER stress, histone deacetylase inhibitor, phenylbutyrate.
Abstract: Phenylbutyrate (PBA) is an aromatic short-chain fatty acid which is a chemical derivative of butyric acid naturally produced by colonic bacteria fermentation. At the intestinal level butyrate exerts a multitude of activities including amelioration of mucosal inflammation, regulation of transepithelial fluid transport, improvement in oxidative status and colon cancer prevention. Moreover, increasing number of studies report the beneficial role of butyric acid in prevention or inhibition of other types of malignancies, leading to cancer cell growth arrest and apoptosis. Similarly, phenylbutyrate displays potentially favorable effects on many pathologies including cancer, genetic metabolic syndromes, neuropathies, diabetes, hemoglobinopathies, and urea cycle disorders. The mechanisms by which PBA exerts these effects are different. Some of them are connected with the regulation of gene expression, playing the role of a histone deacetylase inhibitor, while others contribute to the ability of rescuing conformational abnormalities of proteins, serving as chemical chaperone, and some are dedicated to its metabolic characteristic enabling excretion of toxic ammonia, thus acting as ammonia scavenger. Phenylbutyrate may exert variable effects depending on the cell type, thus the term “butyrate paradox” has been proposed. These data indicate a broad spectrum of beneficial effects evoked by PBA with a high potential in therapy. In this review, we focus on cellular and systemic effects of PBA treatment with special attention to the three main branches of its molecular activity: ammonia scavenging, chaperoning and histone deacetylase inhibiting, and describe its particular role in various human diseases.
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Cite this article as:
Kusaczuk Magdalena, Bartoszewicz Marek and Cechowska-Pasko Marzanna, Phenylbutyric Acid: Simple Structure - Multiple Effects, Current Pharmaceutical Design 2015; 21 (16) . https://dx.doi.org/10.2174/1381612821666150105160059
DOI https://dx.doi.org/10.2174/1381612821666150105160059 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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