The Changing Concept of Gut Endocrinology

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Bibliographic Details
Title: The Changing Concept of Gut Endocrinology
Authors: Rehfeld, Jens F
Contributors: Wabitsch, M., Posovszky, C.
Source: Endocrine Development ISBN: 9783318059731
Publisher Information: S. Karger AG, 2017.
Publication Year: 2017
Subject Terms: 0301 basic medicine, Enteroendocrine Cells, Endocrinology/trends, G-Protein-Coupled/physiology, Receptors, G-Protein-Coupled, 3. Good health, Gastrointestinal Hormones, Gastrointestinal Tract, 03 medical and health sciences, Endocrinology, Phenotype, Endocrine Glands, Gastrointestinal Tract/physiology, Receptors, Animals, Humans, Enteroendocrine Cells/physiology, Gastrointestinal Hormones/genetics
Description: Gastrointestinal hormones are released from enteroendocrine cells in the digestive tract. More than 30 hormone genes are expressed, which make the gut the largest endocrine organ in the body. At present, it is feasible to conceive the hormones under 5 headings: the structural homology groups most hormones into 9 families, each of which is assumed to originate from a single gene. Today's hormone gene often has multiple phenotypes due to alternative splicing, tandem organization or differentiated maturation of the prohormone. By these mechanisms, more than 100 different hormonal peptides are released from the gut. Gut hormones are also widely expressed in extraintestinal cells. These cells may release different fragments of the same prohormone due to cell-specific processing pathways. Moreover, endocrine cells, immune cells, neurons, myocytes, kidney cells, sperm cells and cancer cells secrete gut peptides in different ways, so the same peptide may act for instance as a hormone, a neurotransmitter, a cytokine, a growth factor or a fertility factor. The targets of gastrointestinal hormones are specific G-protein coupled receptors that are expressed in the cell membrane all over the body. Thus, each gut hormone constitutes a regulatory system operating in the whole organism.
Document Type: Part of book or chapter of book
Article
Language: English
DOI: 10.1159/000475728
Access URL: https://pubmed.ncbi.nlm.nih.gov/28873381
https://europepmc.org/abstract/MED/28873381
https://www.ncbi.nlm.nih.gov/pubmed/28873381
https://pubmed.ncbi.nlm.nih.gov/28873381/
Rights: URL: https://www.karger.com/Services/SiteLicenses
Accession Number: edsair.doi.dedup.....ae9a1b97dc84b7bcc22171bf1abf0dea
Database: OpenAIRE
Description
Abstract:Gastrointestinal hormones are released from enteroendocrine cells in the digestive tract. More than 30 hormone genes are expressed, which make the gut the largest endocrine organ in the body. At present, it is feasible to conceive the hormones under 5 headings: the structural homology groups most hormones into 9 families, each of which is assumed to originate from a single gene. Today's hormone gene often has multiple phenotypes due to alternative splicing, tandem organization or differentiated maturation of the prohormone. By these mechanisms, more than 100 different hormonal peptides are released from the gut. Gut hormones are also widely expressed in extraintestinal cells. These cells may release different fragments of the same prohormone due to cell-specific processing pathways. Moreover, endocrine cells, immune cells, neurons, myocytes, kidney cells, sperm cells and cancer cells secrete gut peptides in different ways, so the same peptide may act for instance as a hormone, a neurotransmitter, a cytokine, a growth factor or a fertility factor. The targets of gastrointestinal hormones are specific G-protein coupled receptors that are expressed in the cell membrane all over the body. Thus, each gut hormone constitutes a regulatory system operating in the whole organism.
DOI:10.1159/000475728