Evidence for a reduced chemokine response in the lungs of beige mice infected with Mycobacterium avium

Immunology
M FloridoA M Cooper

Abstract

The basis of the increased susceptibility of beige mice to Mycobacterium avium infections is still not clearly understood. In this study we examined the growth of three virulent strains of M. avium in beige mice and normal C57BL/6 controls. Depletion of natural killer (NK) cells by administration of anti-asialo GM1 antisera did not affect the growth of M. avium in any of the groups of animals. Similarly, interferon-gamma (IFN-gamma) gene-disrupted mice were more susceptible to infection than control mice but the growth of M. avium was not further affected by NK-cell depletion. In terms of effector immunity, beige mice showed enhanced expression of IFN-gamma and tumour necrosis factor-alpha (TNF-alpha) when compared with wild-type C57BL/6 mice. In agreement with these results; I-A and interferon-inducible protein (IP-10) expression was also higher in beige mice than in wild-type animals, as was expression of the chemokines macrophage inflammatory protein-2 (MIP-2) and macrophage chemotactic protein (MCP-1) during latter stages of the infection. However, over the first few weeks of the infection, when the susceptibility of the beige mouse lung first becomes evident, MIP-1 beta and MIP-2 chemokine expression in the lungs was lower...Continue Reading

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Citations

Feb 27, 1999·Journal of Interferon & Cytokine Research : the Official Journal of the International Society for Interferon and Cytokine Research·C JagannathR L Hunter
Nov 3, 2011·Journal of Neurotrauma·Nicole M GeremiaArthur Brown
Dec 23, 2008·American Journal of Respiratory Cell and Molecular Biology·Adrian G Rosas-TaracoMercedes González-Juarrero
Aug 22, 2009·Blood·Oliver SoehnleinChristian Weber
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Oct 10, 2002·Clinics in Chest Medicine·Jeffery McGarvey, Luiz E Bermudez
Aug 3, 2011·Current Protocols in Immunology·Diane J Ordway, Ian M Orme
Aug 1, 2018·The Journal of Immunology : Official Journal of the American Association of Immunologists·Hsin-Chih LaiChia-Chen Lu
Aug 13, 2002·Arteriosclerosis, Thrombosis, and Vascular Biology·Natalie K SchillerLinda K Curtiss
Apr 25, 2008·Current Protocols in Immunology·I M Orme, A D Roberts
Jun 5, 2020·Current Protocols in Immunology·Edward D ChanDiane J Ordway
Jun 22, 1999·Infection and Immunity·T HayashiA Catanzaro

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