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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Acceleration of idiopathic pneumonia syndrome (IPS) in the absence of donor MIP-1 alpha ( CCL3) after allogeneic BMT in mice.

Idiopathic pneumonia syndrome (IPS) is a significant cause of morbidity and mortality after bone marrow transplantation (BMT) in humans. We developed a murine IPS model in which lethal pre-BMT conditioning and allogeneic T cells results in the recruitment of host monocytes and then donor T cells into the lung by day 7 after BMT, concomitant with development of severe lung dysfunction. We reported the T cell-dependent production of the T cell-attracting chemokine macrophage inflammatory protein-1 alpha ( MIP-1 alpha) in the lungs of such recipient mice. We reasoned that MIP-1 alpha might be a critical mediator of IPS. Lethally conditioned mice received transplants of major histocompatibility complex-disparate marrow and either wild-type ( MIP-1 alpha(+/+)) or knockout ( MIP-1 alpha(-/-)) spleen cells. Recipients of MIP-1 alpha(-/-) cells exhibited accelerated mortality and a decrease in specific compliance that appeared earlier than in recipients of MIP-1 alpha(+/+) cells. Donor CD4(+) and CD8(+) T cell expansion was increased in the spleens of recipients of MIP-1 alpha(-/-) cells. Lungs of recipients of MIP-1 alpha(-/-) cells had earlier recruitment of both T-cell subsets by day 3 after BMT, concomitant with the influx of cells expressing the cytolysins granzymes A and B. Monocyte recruitment was not altered. Levels of inflammatory cytokines were not increased and levels of T cell-attracting chemokines were decreased. The level of the anti-inflammatory cytokine interleukin 13 (IL-13) was lower in the serum and lungs of recipients of MIP-1 alpha(-/-) cells, indicating a skewing toward a more inflammatory T helper cell type 1 ( Th1) cytokine milieu. Donor-derived MIP-1 alpha may play a role in allogeneic-induced IPS by limiting aggressive expansion of CD4(+) and CD8(+) T cells.[1]


  1. Acceleration of idiopathic pneumonia syndrome (IPS) in the absence of donor MIP-1 alpha (CCL3) after allogeneic BMT in mice. Panoskaltsis-Mortari, A., Hermanson, J.R., Taras, E., Wangensteen, O.D., Serody, J.S., Blazar, B.R. Blood (2003) [Pubmed]
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