期刊
JOURNAL OF NEUROIMMUNOLOGY
卷 150, 期 1-2, 页码 70-79出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jneuroim.2004.01.020
关键词
EAE; nitric oxide; radiation chimeras; superoxide; delayed onset
The role of nitric oxide (NO) in central nervous system (CNS) inflammation is uncertain. Whereas experimental autoimmune encephalomyelitis (EAE) is exacerbated in mice deficient in inducible nitric oxide synthase (iNOS), inhibitor studies have suggested a pro-inflammatory role for NO. These discrepancies may reflect balance between immunoregulatory and neurocytopathologic roles for NO. We investigated selective effects of bone marrow-derived versus CNS parenchymal sources of iNOS in EAE in chimeric mice. Chimeras that selectively expressed or ablated iNOS in leukocytes both showed significant delay in disease onset, with no difference in disease severity. We conclude that bone marrow-derived and CNS parenchymal sources of iNOS-derived NO both play a regulatory role in EAE. (C) 2004 Elsevier B.V. All rights reserved.
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