|
||
J. Exp. Med.,
Volume 189, Number 5, March 1, 1999 865-870
By



From the * Department of Neuroimmunology and the Brain-derived neurotrophic factor (BDNF) has potent effects on neuronal survival and plasticity
during development and after injury. In the nervous system, neurons are considered the major cellular source of BDNF. We demonstrate here that in addition, activated human T cells, B cells,
and monocytes secrete bioactive BDNF in vitro. Notably, in T helper (Th)1- and Th2-type
CD4+ T cell lines specific for myelin autoantigens such as myelin basic protein or myelin oligodendrocyte glycoprotein, BDNF production is increased upon antigen stimulation. The BDNF
secreted by immune cells is bioactive, as it supports neuronal survival in vitro. Using anti-BDNF
monoclonal antibody and polyclonal antiserum, BDNF immunoreactivity is demonstrable in inflammatory infiltrates in the brain of patients with acute disseminated encephalitis and multiple
sclerosis. The results raise the possibility that in the nervous system, inflammatory infiltrates have a
neuroprotective effect, which may limit the success of nonselective immunotherapies.
Department of Neurobiochemistry, Max Planck
Institute for Neurobiology, D-82152 Martinsried, Germany; the § Division of Environmental
Dermatology and Allergy, Forschungszentrum für Umwelt und Gesundheit (GSF) and Technical
University Munich, D-80802 Munich, Germany;
Boehringer-Mannheim, D-82372 Penzberg,
Germany; the ¶ Institute of Neurology, University of Vienna, A-1090 Vienna, Austria; and the ** Institute for Clinical Neuroimmunology and Department of Neurology, Ludwig Maximilians
University, D-81366 Munich, Germany
This article has been cited by other articles:
| TABLE OF CONTENTS |
|