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Induction of pneumonia in rabbits by use of a purified protein toxin from Pasteurella multocida. 1991

C E Chrisp, and N T Foged
Unit for Laboratory Medicine, University of Michigan Medical School, Ann Arbor 48109.

Heat-labile toxin from a cell sonicate of a virulent type-D strain of Pasteurella multocida was purified by ammonium sulfate precipitation followed by ion exchange chromatography, gel filtration chromatography, and polyacrylamide gel electrophoresis. Toxic activity was assayed during toxin purification by cytopathic effect in Vero or bovine embryonic lung cell cultures. Toxicity for cells correlated with dermonecrosis in guinea pig skin. Toxicity was accounted for by a single protein with a molecular weight of 149,000, as determined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Rabbits were inoculated intranasally with purified toxin to determine whether toxin had a role in the induction of pneumonia in rabbits infected with P multocida. Pneumonia, pleuritis, acute hepatic necrosis, and splenic lymphoid atrophy were found in 4 of 5 rabbits. One of 5 rabbits had bilateral turbinate atrophy. Western blotting with monoclonal antibodies to toxin from a P multocida isolate causing atrophic rhinitis in pigs revealed the toxin that induces pleuritis and pneumonia in rabbits to be the same or a closely related toxin.

UI MeSH Term Description Entries
D010325 Pasteurella The oldest recognized genus of the family PASTEURELLACEAE. It consists of several species. Its organisms occur most frequently as coccobacillus or rod-shaped and are gram-negative, nonmotile, facultative anaerobes. Species of this genus are found in both animals and humans.
D010998 Pleurisy INFLAMMATION of PLEURA, the lining of the LUNG. When PARIETAL PLEURA is involved, there is pleuritic CHEST PAIN. Pleuritis,Pleurisies,Pleuritides
D011014 Pneumonia Infection of the lung often accompanied by inflammation. Experimental Lung Inflammation,Lobar Pneumonia,Lung Inflammation,Pneumonia, Lobar,Pneumonitis,Pulmonary Inflammation,Experimental Lung Inflammations,Inflammation, Experimental Lung,Inflammation, Lung,Inflammation, Pulmonary,Inflammations, Lung,Inflammations, Pulmonary,Lobar Pneumonias,Lung Inflammation, Experimental,Lung Inflammations,Lung Inflammations, Experimental,Pneumonias,Pneumonias, Lobar,Pneumonitides,Pulmonary Inflammations
D011817 Rabbits A burrowing plant-eating mammal with hind limbs that are longer than its fore limbs. It belongs to the family Leporidae of the order Lagomorpha, and in contrast to hares, possesses 22 instead of 24 pairs of chromosomes. Belgian Hare,New Zealand Rabbit,New Zealand Rabbits,New Zealand White Rabbit,Rabbit,Rabbit, Domestic,Chinchilla Rabbits,NZW Rabbits,New Zealand White Rabbits,Oryctolagus cuniculus,Chinchilla Rabbit,Domestic Rabbit,Domestic Rabbits,Hare, Belgian,NZW Rabbit,Rabbit, Chinchilla,Rabbit, NZW,Rabbit, New Zealand,Rabbits, Chinchilla,Rabbits, Domestic,Rabbits, NZW,Rabbits, New Zealand,Zealand Rabbit, New,Zealand Rabbits, New,cuniculus, Oryctolagus
D005260 Female Females
D006168 Guinea Pigs A common name used for the genus Cavia. The most common species is Cavia porcellus which is the domesticated guinea pig used for pets and biomedical research. Cavia,Cavia porcellus,Guinea Pig,Pig, Guinea,Pigs, Guinea
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001426 Bacterial Proteins Proteins found in any species of bacterium. Bacterial Gene Products,Bacterial Gene Proteins,Gene Products, Bacterial,Bacterial Gene Product,Bacterial Gene Protein,Bacterial Protein,Gene Product, Bacterial,Gene Protein, Bacterial,Gene Proteins, Bacterial,Protein, Bacterial,Proteins, Bacterial
D001427 Bacterial Toxins Toxic substances formed in or elaborated by bacteria; they are usually proteins with high molecular weight and antigenicity; some are used as antibiotics and some to skin test for the presence of or susceptibility to certain diseases. Bacterial Toxin,Toxins, Bacterial,Toxin, Bacterial
D013047 Specific Pathogen-Free Organisms Animals or humans raised in the absence of a particular disease-causing virus or other microorganism. Less frequently plants are cultivated pathogen-free. Pathogen-Free Organisms,Specific Pathogen Free,Organism, Pathogen-Free,Organism, Specific Pathogen-Free,Organisms, Pathogen-Free,Organisms, Specific Pathogen-Free,Pathogen Free Organisms,Pathogen Free, Specific,Pathogen Frees, Specific,Pathogen-Free Organism,Pathogen-Free Organism, Specific,Pathogen-Free Organisms, Specific,Specific Pathogen Free Organisms,Specific Pathogen-Free Organism

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