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J. Dairy Sci. 2008. 91:2086-2088. doi:10.3168/jds.2007-0814
© 2008 American Dairy Science Association ®
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Short Communication: Apoptosis Regulates Passive Immune Transfer in Newborn Kids

A. Castro-Alonso*, N. Castro{dagger}, J. Capote{ddagger}, A. Morales-delaNuez{dagger}, I. Moreno-Indias{dagger}, D. Sánchez-Macias{dagger}, P. Herraez* and A. Argüello{dagger},1

* Department of Morphology, and
{dagger} Department of Animal Science, Las Palmas de Gran Canaria University, Arucas 35413, Spain
{ddagger} Canary Agronomic Science Institute, La Laguna, Tenerife 38200, Spain

1 Corresponding author: aarguello{at}dpat.ulpgc.es

Ten newborn kids were used to evaluate the relationship between apoptosis and passive immune transfer in neonatal enterocytes. Kids were slaughtered in groups of 2 at birth, 1, 2, 3, or 60 d postpartum, and samples of duodenal epithelium collected from each animal. Samples were fixed, dehydrated, and embedded in paraffin wax. Sections were assessed for apoptotic cells and immunostained for IgG. Our results suggest that IgG absorption is mediated by apoptotic enterocytes. Thus, delaying apoptosis may improve the success of passive immune transfer.

Key Words: apoptosis • enterocyte • immune passive transfer • immunoglobulin G




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