Document Detail


A defined human gastrin sequence stimulates the growth of Helicobacter pylori.
MedLine Citation:
PMID:  12480109     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study describes the interaction between gastrin and Helicobacter pylori. Human gastrin amino acids 4-17 were found to be the minimal growth-stimulating sequence. Gastrin from other mammals did not stimulate bacterial growth. When human serum was used to stimulate bacterial growth in brucella broth, gastrin was shown to be a necessary and sufficient growth-stimulating factor. Competition for the gastrin effect by pentagastrin and cholecystokinin (CCK-8) resulted in inhibition of bacterial growth. This effect was mediated by the four C-terminal amino acids which are shared by gastrin, CCK-8 and pentagastrin. In conclusion, the interaction between gastrin and H. pylori was shown to be specific, essential, and dependent on a defined gastrin sequence.
Authors:
Michal Yael Chowers; Nathan Keller; Simon Bar-Meir; Yehuda Chowers
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  FEMS microbiology letters     Volume:  217     ISSN:  0378-1097     ISO Abbreviation:  FEMS Microbiol. Lett.     Publication Date:  2002 Dec 
Date Detail:
Created Date:  2002-12-13     Completed Date:  2003-03-28     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7705721     Medline TA:  FEMS Microbiol Lett     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  231-6     Citation Subset:  IM    
Copyright Information:
Copyright 2002 Federation of European Microbiological Societies
Affiliation:
Infectious Disease Unit, Meir Hospital, Sapir Medical Center, Kfar Saba 44281, Israel. chowersm@post.tau.ac.il
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MeSH Terms
Descriptor/Qualifier:
Amino Acid Sequence
Amino Acids / classification,  metabolism
Gastrins / chemistry*,  pharmacology*
Helicobacter pylori / drug effects*,  genetics,  growth & development*
Humans
Molecular Sequence Data
Pentagastrin / metabolism
Chemical
Reg. No./Substance:
0/Amino Acids; 0/Gastrins; 0/gastrin (4-17); 5534-95-2/Pentagastrin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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