Identification and genetic mapping of bovine chemokine genes expressed in epithelial cells

Identification and genetic mapping of bovine chemokine genes expressed in epithelial cells RNA fingerprinting by arbitrarily primed (RAP)-PCR was used to identify two bovine genes that were differentially expressed in epithelial cells during an inflammatory response. RNA fingerprints revealed two differentially amplified transcripts when monolayers of Madin-Darby bovine kidney (MDBK) cells were stimulated with Escherichia coli O157:H7 lipopolysaccharide (LPS) in combination with cycloheximide (CX). Sequence analysis showed that both transcripts encoded members of the alpha C-X-C chemokine family; one was interleukin 8 (IL-8), and the other was a protein closely related to bovine growth-regulated protein (GRO)-γ (89% identical). The latter putative epithelial cell inflammatory protein was designated ECIP-1. IL-8 and ECIP-1 genes were placed on the cattle genetic map with single-nucleotide polymorphism (SNP) markers amplified from genomic DNA. Multi-point linkage analysis indicated that the gene locations were indistinguishable from those of serum albumin (ALB) and vitamin D-binding protein (GC) on bovine Chromosome (BTA) 6. In humans, ALB and GC are located near IL-8, GRO-γ, and seven other alpha chemokines on Chr 4 (HSA 4q11-4q13), suggesting that this gene cluster has been conserved on BTA6. These results provide a starting point for characterizing allelic variation in chemokine genes and their role in the pathogenesis of bacterial infections in cattle. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Mammalian Genome Springer Journals

Identification and genetic mapping of bovine chemokine genes expressed in epithelial cells

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Publisher
Springer Journals
Copyright
Copyright © 1999 by Springer-Verlag New York Inc.
Subject
Life Sciences; Cell Biology; Animal Genetics and Genomics; Human Genetics
ISSN
0938-8990
eISSN
1432-1777
D.O.I.
10.1007/s003359900957
Publisher site
See Article on Publisher Site

Abstract

RNA fingerprinting by arbitrarily primed (RAP)-PCR was used to identify two bovine genes that were differentially expressed in epithelial cells during an inflammatory response. RNA fingerprints revealed two differentially amplified transcripts when monolayers of Madin-Darby bovine kidney (MDBK) cells were stimulated with Escherichia coli O157:H7 lipopolysaccharide (LPS) in combination with cycloheximide (CX). Sequence analysis showed that both transcripts encoded members of the alpha C-X-C chemokine family; one was interleukin 8 (IL-8), and the other was a protein closely related to bovine growth-regulated protein (GRO)-γ (89% identical). The latter putative epithelial cell inflammatory protein was designated ECIP-1. IL-8 and ECIP-1 genes were placed on the cattle genetic map with single-nucleotide polymorphism (SNP) markers amplified from genomic DNA. Multi-point linkage analysis indicated that the gene locations were indistinguishable from those of serum albumin (ALB) and vitamin D-binding protein (GC) on bovine Chromosome (BTA) 6. In humans, ALB and GC are located near IL-8, GRO-γ, and seven other alpha chemokines on Chr 4 (HSA 4q11-4q13), suggesting that this gene cluster has been conserved on BTA6. These results provide a starting point for characterizing allelic variation in chemokine genes and their role in the pathogenesis of bacterial infections in cattle.

Journal

Mammalian GenomeSpringer Journals

Published: Feb 1, 1999

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