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Microbes Infect. 2004 Apr;6(4):360-8.

Injection of the immuno-modulatory drug alpha-galactosylceramide results in the recruitment of a large population of antigen-presenting cells into the liver of C57BL/6 mice.

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Département d'immunologie, Unité de Biologie moléculaire du gene, Inserm U 277, Institut Pasteur, 25, rue du Dr Roux, 75015 Paris, France.


Injection of the immuno-modulatory drug alpha-galactosylceramide into C57BL/6 mice leads to the already known apoptosis of natural killer T (NKT) cells and to thus far undescribed large changes in the leukocyte populations of the liver. These changes are characterized by the recruitment of neutrophils and that of a population of large monocytic cells. The latter cells display the morphological and immunological features of natural suppressor cells. Their recruitment in the liver depends on the presence of NKT cells, most probably through the local release of cytokines and chemokines by activated NKT cells. We discuss the ubiquitous, long-term effects of alpha-galactosylceramide injection on immuno-pathological processes mediated through the NKT-triggered recruitment of a subset of large macrophages/monocytes.

[Indexed for MEDLINE]

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