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Bajramović, J.J. (author), Plomp, A.C. (author), van der Goes, A. (author), Koevoets, C. (author), Newcombe, J. (author), Cuzner, M.L. (author), van Noort, J.M. (author)
In the development of multiple sclerosis (MS), (re)activation of infiltrating T cells by myelin-derived Ags is considered to be a crucial step. Previously, αB-crystallin has been shown to be an important myelin Ag to human T cells. Since αB-crystallin is an intracellular heat shock protein, the question arises at what stage, if any, during...
article 2000
document
Laman, J.D. (author), de Boer, M. (author), 't Hart, B.A. (author), TNO Preventie en Gezondheid (author)
The interactions of CD40 and CD40L have been known for some time to critically regulate B-cell responses with respect to proliferation, isotype switching, antibody production, and memory formation. More recent findings demonstrated that CD40 can be expressed on several other antigen-presenting cell (APC) types such as macrophages, dendritic...
article 1998
document
Laman, J.D. (author), Maassen, C.B.M. (author), Schellekens, M.M. (author), Visser, L. (author), Kap, M. (author), de Jong, E. (author), van Puijenbroek, M. (author), van Stipdonk, M.J.B. (author), van Meurs, M. (author), Schwärzler, C. (author), Günthert, U. (author), TNO Preventie en Gezondheid (author)
Interactions between mononuclear cells are required for the formation of inflammatory infiltrates in the CNS and the activation of cellular effector functions provoking demyelination in MS. Membrane-expressed costimulatory molecules are crucial to such interactions. We therefore investigated whether two costimulatory molecules, CD40L (CD154,...
article 1998
document
Vyth-Dreese, F.A. (author), Boot, H. (author), Dellemijn, T.A.M. (author), Majoor, D.M. (author), Oomen, L.C.J.M. (author), Laman, J.D. (author), van Meurs, M. (author), de Weger, R.A. (author), de Jong, D. (author), TNO Preventie en Gezondheid (author)
Costimulatory molecules are essential in cognate interactions between T and B lymphocytes. To study the prerequisites of functional interactions between malignant B cells and intermingled T cells in B-cell non-Hodgkin's lymphomas (B-NHL), we examined the expression of CD40, CD80 and CD86 and their ligands CD40 ligand (CD40L, CD154), CD28 and...
article 1998
document
Laman, J.D. (author), van Meurs, M. (author), Schellekens, M.M. (author), de Boer, M. (author), Melchers, B. (author), Massacesi, L. (author), Lassmann, H. (author), Claassen, E. (author), 't Hart, B.A. (author), TNO Preventie en Gezondheid (author)
Accessory molecules and cytokines are involved in the immunopathogenesis of multiple sclerosis (MS) and experimental autoimmune encephalomyelitis (EAE) in rodent models, and are potential targets for immunotherapy. Evaluation of such experimental therapies requires appropriate animal models. Therefore, we analysed the expression of selected...
article 1998
document
Laman, J.D. (author), van Meurs, M. (author), de Smet, B.J.G.L. (author), Schoneveld, A. (author), TNO Preventie en Gezondheid (author)
The abundant presence of macrophages and activated T cells in atherosclerotic plaques suggests an active involvement of the immune system in this cardiovascular disease. However, insight into cellular interactions inducing relevant effector functions is still limited. Here, Jon Laman and colleagues propose that local interactions between CD40...
article 1997
document
Laman, J.D. (author), Claassen, E. (author), Noelle, R.J. (author), TNO Preventie en Gezondheid (author)
Initially, a role for the interaction between CD40, expressed on B cells, and gp39 (CD40L), expressed on activated T cells, has been defined in humoral immunity. CD40-CD40L interaction is an essential signal for B cell proliferation, expression of activation markers, immunoglobulin production, and isotype switching. CD40-CD40L interaction is...
article 1996
document
Gaubius Instituut TNO (author), Gerritse, K. (author), Laman, J.D. (author), Noelle, R.J. (author), Aruffo, A. (author), Ledbetter, J.A. (author), Boersma, W.J.A. (author), Claassen, E. (author)
We investigated the role of CD40-CD40 ligand (CD40L) interactions in multiple sclerosis (MS) and experimental allergic encephalomyelitis (EAE). Activated helper T cells expressing CD40L (gp39) surface protein were found in MS patient brain sections, but not in brain tissue sections of normal controls or patients with other neurological diseases....
article 1996
document
Foy, T.M. (author), Laman, J.D. (author), Ledbetter, J.A. (author), Aruffo, A. (author), Claassen, E. (author), Noelle, R.J. (author), Medisch Biologisch Laboratorium TNO (author)
gp39, the ligand for CD40 expressed on activated CD4+ T helper cells, is required for the generation of antibody responses to T-dependent (TD) antigens. Treatment of mice with anti-gp39 in vivo inhibits both primary and secondary antibody formation to TD, but not T-independent antigens. However, the role of this receptor-ligand pair in the...
article 1994
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