Demonstration of Pasteurella-specific immunoglobulin E in bovine serum.

L. J. Gershwin, K. Friebertshauser

Research output: Contribution to journalArticle

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Abstract

On the basis of recent observations that immunoglobulin (Ig) E antibodies specific for bacterial antigens occur in the serum of persons with chronic respiratory tract disease, we used bovine epsilon chain-specific antiserum to investigate the possibility that IgE antibodies are induced in cattle infected with Pasteurella. Using enzyme-linked immunosorbent assay and Western blotting techniques, we studied bovine sera to detect and quantitate the presence of IgE antibodies specific for antigens of Pasteurella. Immunoglobulin E antibodies reactive with whole formalinized P haemolytica, potassium thicyanate, and saline solution extracts were detected in serum of calves with bronchopneumonia, feedlot steers with interstitial pneumonia, as well as nonaffected penmates, and adult dairy cows. The role of parenteral vaccination in eliciting an IgE response was examined in healthy calves; vaccination with a Pasteurella bacterin failed to induce an IgE response. Adsorption studies were done to demonstrate the specificity of the antibodies for Pasteurella. Enzyme-linked immunosorbent assay absorbance values were significantly decreased by adsorption with P haemolytica, whereas adsorption with other gram-negative bacteria only moderately decreased serum absorbance values. To begin identification of the antigen(s) to which the IgE binds, Western blotting of P haemolytica extract with sera from calves with bronchopneumonia was done. A dense band of protein (approximately 60,000 daltons) reacted strongly with IgE in the highest titer sera. These results indicate that Pasteurella-specific IgE antibodies are not readily induced by parenteral vaccination, but can be found in serum of some cattle, possibly induced by existing or previous infection.(ABSTRACT TRUNCATED AT 250 WORDS)

Original languageEnglish (US)
Pages (from-to)169-175
Number of pages7
JournalAmerican Journal of Veterinary Research
Volume48
Issue number2
StatePublished - Feb 1987

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Pasteurella
immunoglobulin E
blood serum
Immunoglobulin E
cattle
Serum
antibodies
bronchopneumonia
adsorption
Antibodies
vaccination
calves
Adsorption
Bronchopneumonia
Vaccination
absorbance
Western blotting
enzyme-linked immunosorbent assay
bacterial antigens
antigens

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Demonstration of Pasteurella-specific immunoglobulin E in bovine serum. / Gershwin, L. J.; Friebertshauser, K.

In: American Journal of Veterinary Research, Vol. 48, No. 2, 02.1987, p. 169-175.

Research output: Contribution to journalArticle

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