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  • Title: Involvement of brain-derived neurotrophic factor (BDNF) in MP4-induced autoimmune encephalomyelitis.
    Author: Javeri S, Rodi M, Tary-Lehmann M, Lehmann PV, Addicks K, Kuerten S.
    Journal: Clin Immunol; 2010 Nov; 137(2):181-9. PubMed ID: 20797911.
    Abstract:
    The role of brain-derived neurotrophic factor (BDNF) in multiple sclerosis and experimental autoimmune encephalomyelitis (EAE) is still unclear. Here we investigate the clinical course, CNS histopathology and peripheral antigen-specific immunity in MP4-induced EAE of BDNF (-/+) mice. We demonstrate that these mice displayed less severe disease compared to BDNF (+/+) mice, reflected by decreased inflammation and demyelination. In correspondence to diminished frequencies of T and B cells in CNS infiltrates, the peripheral MP4-specific T(H)1/T(H)17 response was attenuated in BDNF (-/+), but not in wild-type animals. In contrast, immunization with ovalbumin triggered similar frequencies of IFN-γ- and IL-17-secreting T cells in both groups. The cytokine secretion and proliferative activity upon mitogen stimulation did not reveal any global defect of T cell function in BDNF (-/+) mice. By influencing the antigen-specific immune response in autoimmune encephalomyelitis, BDNF may support and maintain the disease in ways that go beyond its alleged neuroprotective role.
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