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Production from dairy cows of semi-industrial quantities of milk-protein concentrate (MPC) containing efficacious anti-Candida albicans IgA antibodies

Published online by Cambridge University Press:  30 April 2007

Alison J Hodgkinson ,
Richard D Cannon ,
Ann R Holmes ,
Frank J Fischer  and
Dawn J Willix-Payne
Alison J Hodgkinson*
Affiliation:
AgResearch Limited, Ruakura Research Centre, Hamilton, New Zealand
Richard D Cannon
Affiliation:
School of Dentistry, University of Otago, Dunedin, New Zealand
Ann R Holmes
Affiliation:
School of Dentistry, University of Otago, Dunedin, New Zealand
Frank J Fischer
Affiliation:
School of Dentistry, University of Otago, Dunedin, New Zealand
Dawn J Willix-Payne
Affiliation:
AgResearch Limited, Ruakura Research Centre, Hamilton, New Zealand
*
*For correspondence; e-mail: [email protected]
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Abstract

Bovine milk antibodies directed against human pathogenic organisms have potential as prophylactic or therapeutic treatments of disorders affecting mucosal surfaces. The cow, however, does not naturally secrete high levels of IgA in milk, the predominant immunoglobulin of the mucosal immune system. We have patented an immunisation protocol that results in increased production of IgA in ruminant milk and in this study established that our protocol can be used on a scale sufficient to produce semi-industrial quantities of milk for processing. Cows were immunised with a common pathogenic yeast, Candida albicans and responded with high levels of antigen-specific IgA antibodies in their milk. The spray-dried milk-protein concentrate (85% protein) powder was shown to reduce adherence of Cand. albicans cells in in vitro adherence assays, demonstrating an ability to retain efficacy through the processing. These results suggest that this milk product may be of therapeutic value if the reduction in Cand. albicans adhesion observed in vitro translates to reduced colonisation in vivo.

Keywords

IgAbovine milk immunoglobulinmucosal defencetherapeutic milk antibodies
Type
Research Article
Information
Journal of Dairy Research , Volume 74 , Issue 3 , August 2007 , pp. 269 - 275
Copyright
Copyright © Proprietors of Journal of Dairy Research 2007

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