PMID: 11920383Mar 29, 2002Paper

A comparative study of gut-associated lymphoid tissue in calf and chicken

The Anatomical Record
Masahiro YasudaS Ekino

Abstract

The calf contains two types of Peyer's patches (PPs): jejunal and ileal. The ileal PP has been thought to be equivalent to the bursa of Fabricius (BF) as a central lymphoid organ. The morphologies of ileal and jejunal PPs in the calf were compared with those of the BF and the caecal tonsil (CT) in the chicken. Immunoglobulin G-positive (IgG(+)) cells appear in the follicles of them all and exhibited a dendritic appearance after birth. We investigated whether the IgG in these follicles was produced in situ. IgG-producing cells were detected in the follicular medullas of the jejunal PP and the CT, but not in those of the ileal PP and the BF. CD4(+) cells were distributed in the follicular medullas of the jejunal PP and the CT, but not in those of the ileal PP and the BF. The data suggest that Ig class switching occurs in both jejunal PP follicles and CT follicles, but does not occur in either the ileal PP follicles or the bursal follicles. Because CD4(+) T cells would be prerequisite for Ig class switching in these follicles, IgG(+) cells of the follicular medullas in the ileal PP and the BF would trap immune complexes from the gut lumen. The primary B-cell repertoire might be selected by gut-derived antigens in the ileal PP and ...Continue Reading

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Citations

Apr 25, 2012·Cell and Tissue Research·Shigeo EkinoYoshikatsu Kodama
Jul 30, 2010·Clinical and Vaccine Immunology : CVI·Jennifer T BrisbinShayan Sharif
May 19, 2010·Veterinary Immunology and Immunopathology·Brooke J DobsonJ Frank T Griffin
Feb 23, 2008·Comparative Immunology, Microbiology and Infectious Diseases·Keiko ImamuraShigeo Ekino
May 18, 2004·Anatomia, histologia, embryologia·F Beyaz, R N Aşti
Feb 19, 2010·Animal Science Journal = Nihon Chikusan Gakkaihō·Kiyoaki NarabaraYasuhiro Kondo
Mar 31, 2005·Veterinary Immunology and Immunopathology·Enav Bar ShiraAharon Friedman
May 8, 2015·Cell and Tissue Research·Shigeo EkinoSeiji Inui
Oct 13, 2006·Comparative Immunology, Microbiology and Infectious Diseases·Masahiro YasudaTakayuki Murakami
Apr 14, 2006·Veterinary Research·Masahiro YasudaJohn D Reynolds
Oct 9, 2008·The Journal of Veterinary Medical Science·Motoko TakanashiMasahiro Yasuda
Nov 15, 2011·The Journal of Veterinary Medical Science·Weidong ZhangMasahiro Yasuda
Jun 11, 2008·Animal Health Research Reviews·Jennifer T BrisbinShayan Sharif
Jul 5, 2002·The Journal of Immunology : Official Journal of the American Association of Immunologists·Hiroshi ArakawaHideo Yamagishi
Jun 21, 2018·Biological Trace Element Research·Fengyuan WangLi Tang

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