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TNO Preventie en Gezondheid (author), van Sechel, A.C. (author), Bajramovic̀, J.J. (author), van Stipdonk, M.J.B. (author), Persoon-Deen, C. (author), Geutskens, S.B. (author), van Noort, J.M. (author)The development of multiple sclerosis is most likely influenced by autoimmune responses to central nervous system myelin proteins as well as by infections with common viruses such as EBV and human herpesvirus-6. However, much remains to be established on how these factors interact. In this study, we show that upon EBV infection, human B cells...article 1999
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van Stipdonk, M.J.B. (author), Willems, A.A. (author), Amor, S. (author), Persoon-Deen, C. (author), Travers, P.J. (author), Boog, C.J.P. (author), van Noort, J.M. (author), TNO Preventie en Gezondheid (author)Factors such as developmental stage or physiological and infectious stress may change patterns of post-translational protein modification. In order to determine whether such regulated types of modification may influence T cell responsiveness to self proteins we examined the T cell response of SJL (H-2(S)) mice to αB-crystallin, a small heat...article 1998
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van Noort, J.M. (author), TNO Preventie en Gezondheid (author)Multiple sclerosis is the major neurological disease of young adults in the western world, affecting about 1 per 1,000. It is characterised by chronic or recurrent lesions of inflammatory damage in the white matter of the central nervous system. Within such lesions, the protective myelin sheath is stripped off axons by infiltrated macrophages...article 1998
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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
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Nijhuis, E.W.P. (author), Oostervink, F. (author), Hinloopen, B. (author), Rozing, J. (author), Nagelkerken, L. (author), Gaubius Instituut TNO (author)Peripheral blood mononuclear cells (PBMC) from 40 consecutive patients entering a screening program on cognitive impairment were studied in vitro with respect to their sensitivity to dexamethasone (DEX). Phytohemagglutinin-induced proliferation by PBMC from patients with senile dementia of the Alzheimer type (SDAT) was less sensitive to the...article 1996
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van Noort, J.M. (author), TNO Preventie en Gezondheid (author)The pathogenesis of multiple sclerosis (MS), the major neurological disease of young adults in the Western world, is still poorly understood, and no effective therapy to block MS is available as yet. The clinical symptoms of MS result from inflammatory damage to the insulating myelin sheath of axons in the CNS and - at later stages - to axons...article 1996
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de Jong, E.C. (author), Spanhaak, S. (author), Martens, B.P.M. (author), Kapsenberg, M.L. (author), Penninks, A.H. (author), Wierenga, E.A. (author), TNO Voeding (author)Background: Increasing evidence indicates a prominent role of allergen-specific TH2 cells, with high IL-4 and IL-5 production and low interferon-γ production, in the regulation of IgE and eosinophil production in allergic disorders. However, most studies have concentrated on T cells reactive with inhalation allergens, whereas little is known...article 1996
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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
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Remarque, E.J. (author), Nijhuis, E.W.P. (author), Hinloopen, B. (author), Nagelkerken, L. (author), van der Velde, E.A. (author), Ligthart, G.J. (author), Instituut voor Experimentele Gerontologie TNO (author)To investigate the effects of the altered composition of the helper T cell compartment in ageing on the humoral response to influenza vaccine, we investigated correlations between helper T cell subsets and anti-influenza antibody responses in 23 JUNIEUR healthy young and 41 SENIEUR healthy elderly subjects. Naive helper T cell numbers (CD4...article 1996
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van Noort, J.M. (author), van Sechel, A.C. (author), Bajramovic, J.J. (author), El Quagmiri, M. (author), Polman, C.H. (author), Lassmann, H. (author), Ravid, R. (author), TNO Preventie en Gezondheid (author)The identification of key antigens in human autoimmune diseases is a crucial step towards the development of specific intervention. The autoantigen(s) relevant to multiple sclerosis (MS) probably reside in myelin of the central nervous system, the target of the disease. Here we examine proliferative responses of human peripheral blood T cells to...article 1995
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Nijhuis, E.W.P. (author), Hinloopen, B. (author), van Lier, R.A.W. (author), Nagelkerken, L. (author), TNO Preventie en Gezondheid (author)Human CD45RA+ ('naive') and CD45RO+ ('memory') CD4+ T cells were compared with respect to their sensitivity to dexamethasone (DEX). In three different activation pathways, i.e. (i) immobilized anti-CD3, (ii) immobilized anti-CD3 plus soluble anti-CD28 and (iii) soluble anti-CD2 plus soluble anti-CD28, naive CD4+ T cells appeared more sensitive...article 1995
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Leenaars, P.P.A.M. (author), Hendriksen, C.F.M. (author), Koedam, M.A. (author), Claassen, I. (author), Claassen, E. (author), Gaubius Instituut TNO (author)Four types of adjuvants were evaluated as alternatives to the use of Freund's complete adjuvant in mice. The adjuvants evaluated included a water-in-oil emulsion (Specol), a microorganism (Lactobacillus), preformed immune-stimulating complexes (ISCOM) containing rabies virus glycoprotein and a saponin, Quil A. The adjuvants and saline were...article 1995
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Claassen, I.J.T.M. (author), Osterhaus, A.D.M.E. (author), Claassen, E. (author), Gaubius Instituut TNO (author)Several mechanisms have been postulated to explain the relatively high immunogenicity of antigens presented in immune-stimulating complexes (iscom). Their potency can in part be explained by the specific targeting of these structures to cells presenting antigens to the immune system. However, until now no method for the subcellular detection of...article 1995
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Nijhuis, E.W.P. (author), Hinloopen, B. (author), Odding, J. (author), Nagelkerken, L. (author), TNO Preventie en Gezondheid (author)The suppressive effect of the glucocorticoid dexamethasone (DEX) on purified CD4+ T cells was found to depend on the activation pathway. In contrast to anti-CD3- or PHA-induced T cell proliferation, the alternative pathway of T cell activation, i.e., through anti-CD2 and anti-CD28, appeared largely resistant to DEX. By titrating anti-CD28 or the...article 1994
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Nijhuis, E. (author), Hinloopen, B. (author), van Duijn, C. (author), Hofman, A. (author), Rozing, J. (author), Nagelkerken, L. (author), Section of Immunology, Inst. of Aging and Vascular Research, TNO, Leiden, Netherlands TNO Preventie en Gezondheid (author)Cortisol levels in patients with Alzheimer's disease (AD) are relatively unaffected by a challenge with dexamethasone (DEX) in vivo. The present study demonstrates that DEX is less inhibitory for phytohemagglutinin (PHA)-induced T cell proliferation in AD patients as compared to age-matched controls. Since no significant differences were found...article 1994
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- Bruijnzeel, P.L.B. (author) article 1994
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Nagelkerken, L. (author), Gollob, K.J. (author), Tielemans, M. (author), Coffman, R.L. (author), Gezondheidsorganisatie TNO Instituut voor verouderings- en vaatziekten onderzoek TNO (author)Stimulation of murine CD4+ T cells with staphylococcal enterotoxin B (SEB) results in the preferential development of T helper (Th) 1 cells [i.e. high interferon (IFN)-γ and low interleukin (IL)-4, IL-5 and IL-10]; whereas in response to plate-bound anti-CD3 or anti-T cell receptor-αβ, Th1 as well as Th2 cells develop. In the present study, we...article 1993
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van den Eertwegh, A.J.M. (author), Boersma, W.J.A. (author), Claassen, E. (author), Medisch Biologisch Laboratorium TNO (author)The spleen is an important lymphoid organ, involved in immune responses against all types of antigen that appear in the circulation. Its complex anatomical organization, with distinct compartments containing specialized cell types, provides a microenvironment which allows different cell-cell interactions and determines the direction of...article 1992
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Nijhuis, E.W.P. (author), Nagelkerken, L. (author), Gaubius Instituut TNO (author)Aging is accompanied by a decline in immune reactivity which to a major extent can be attributed to changes at the level of the regulatory CD4+ T cells. In addition to evidence pointing to intrinsic defects, resulting in improper responsiveness of lymphocytes, it is likely that many age-related phenomena can be explained by a changed composition...article 1992
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Lubbe, F.H. (author), Hooijkaas, H. (author), Preesman, A.A. (author), Medisch Biologisch Laboratorium TNO (author)The effect of X-irradiation upon murine antibody-forming cell precursors (B cells) was established in cultures of spleen cells stimulated with the B cell mitogen lipopolysaccharide (LPS). At day 5 and 7 the numbers of IgM- and IgG2-secreting cells were determined in cultures of irradiated and nonirradiated spleen cells. From these numbers a D(o)...article 1982