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Infection and Immunity, April 2004, p. 2425-2428, Vol. 72, No. 4
0019-9567/04/$08.00+0 DOI: 10.1128/IAI.72.4.2425-2428.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.
Neutralization of Interleukin-10 Significantly Enhances Gamma Interferon Expression in Peripheral Blood by Stimulation with Johnin Purified Protein Derivative and by Infection with Mycobacterium avium subsp. paratuberculosis in Experimentally Infected Cattle with Paratuberculosis
Joram J. Buza,1 Hirokazu Hikono,1 Yasuyuki Mori,2 Reiko Nagata,2 Sachiyo Hirayama,1 Abusaleh M. Bari,1 Aodon-geril,,1 Yujing Shu,1 Noriko M. Tsuji,3 and Eiichi Momotani1*
Paratuberculosis and Inflammatory Bowel Disease Research Team,1
Immune System Section, National Institute of Animal Health,2
Molecular Immunology Laboratory, National Institute of Agrobiological Sciences, 3-1-5 Kan-nondai, Tsukuba 305-0856, Japan3
Received 28 October 2003/
Returned for modification 16 December 2003/
Accepted 8 January 2004
Monoclonal antibody neutralization of interleukin-10 (IL-10) increased Johnin purified protein derivative-induced whole-blood gamma interferon (IFN-
) secretion 23-fold and also increased IFN-
secretion ninefold following in vitro Mycobacterium avium subsp. paratuberculosis infection of peripheral blood mononuclear cells. These results demonstrate the suppressive effect of IL-10 on immune responses to M. avium subsp. paratuberculosis infection in cattle.
* Corresponding author. Mailing address: Paratuberculosis and Inflammatory Bowel Disease Research Team, NIAH, 3-1-5 Kan-nondai, Tsukuba 305-0856, Japan. Phone: 81-29-838-7781. Fax: 81-29-838-7781. E-mail:
momotani{at}affrc.go.jp.
Editor: S. H. E. Kaufmann
Infection and Immunity, April 2004, p. 2425-2428, Vol. 72, No. 4
0019-9567/04/$08.00+0 DOI: 10.1128/IAI.72.4.2425-2428.2004
Copyright © 2004, American Society for Microbiology. All Rights Reserved.
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