Coordinated Expression of Tracheal Antimicrobial Peptide and Inflammatory-Response Elements in the Lungs of Neonatal Calves with Acute Bacterial Pneumonia

Author:

Caverly Jessica M.1,Diamond Gill2,Gallup Jack M.1,Brogden Kim A.3,Dixon Richard A.4,Ackermann Mark R.1

Affiliation:

1. Department of Veterinary Pathology, College of Veterinary Medicine, Iowa State University, Ames, Iowa 50011-1250

2. University of Medicine and Dentistry of New Jersey, New Jersey Medical School, Newark, New Jersey 07103-2714

3. Respiratory Diseases of Livestock Research Unit, USDA Agricultural Research Service, National Animal Disease Center, Ames, Iowa 50010

4. Texas Biotechnology Corporation, Houston, Texas 77030

Abstract

ABSTRACT Lung tissue removed from neonatal calves with acute Mannheimia haemolytica pneumonia showed that rapid up-regulation of the basal mRNA expression of tracheal antimicrobial peptide (TAP), NF-κB, and intercellular adhesion molecule 1 occurred after infection; TAP and interleukin 8 expression were highly correlated. This work suggests that the coordinated expression of β-defensin and inflammatory elements occurs during bacterial pneumonia.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Immunology,Microbiology,Parasitology

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