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Immunology logoLink to Immunology
. 1981 Mar;42(3):475–479.

Route of lymphocyte migration in pigs. II. Migration to the intestinal lamina propria of antigen-specific cells generated in response to intestinal immunization in the pig.

M A Bennell, A J Husband
PMCID: PMC1458458  PMID: 7193648

Abstract

Intestinal lymph-duct cannulae were established in normal and mesenteric lymphadenectomized (MLNx) pigs for the 6-day duration of a local intestinal immune response to a protein antigen (ovalbumin). The daily output of anti-ovalbumin-containing cells (AOCC) in intestinal lymph and the numbers of AOCC in the intestinal lamina propria at the end of the experiment were recorded. Very few AOCC were recovered in the intestinal lymph of normal pigs whereas in MLNx pigs large numbers were recovered reaching a peak output on day 4. However, there were significantly more AOCC detected in the jejunal lamina propria of normal pigs than MLNx pigs despite continuous drainage of intestinal lymph throughout the response. The absence of AOCC from efferent intestinal lymph of normal pigs, the failure of chronic intestinal-lymph drainage to abrogate the AOCC response in the intestine of these pigs and the reversal of these findings in MLNx pigs indicate that, in contrast to other species, lymphoblasts are diverted from porcine intestinal lymph, and probably enter the blood circulation at the level of the mesenteric lymph node (MLN).

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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