نتایج جستجو برای: tolerogenic molecule

تعداد نتایج: 135662  

2014
Mo Yin MOK

Dendritic cells (DCs) are antigen presenting cells that activate T cells and determine the outcome of immune response. In addition to their important function in defense against pathogens, DCs are increasingly recognized as playing a crucial role in the regulation of immune tolerance. Plasticity of DCs with different maturity status and functions enable them to be exploited as potential cell-ba...

Journal: :Journal of immunology 2001
U Grohmann F Fallarino S Silla R Bianchi M L Belladonna C Vacca A Micheletti M C Fioretti P Puccetti

The outcome of dendritic cell (DC) presentation of P815AB, a tolerogenic tumor/self peptide, depends on a balance between the respective immunogenic and tolerogenic properties of myeloid (CD8 alpha(-)) and lymphoid (CD8 alpha(+)) DC. We have previously shown that CD8(-) DC can be primed by IL-12 to overcome inhibition by the CD8(+) subset and initiate immunogenic presentation in vivo when the t...

Journal: :Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology 2010
M K Rochat M J Ege D Plabst J Steinle S Bitter C Braun-Fahrländer J-C Dalphin J Riedler M Roponen M-R Hirvonen G Büchele H Renz R Lauener S Krauss-Etschmann E von Mutius

BACKGROUND Recent studies indicate that prenatal vitamin D intake may protect against the development of atopic diseases in young children. Vitamin D has been shown to induce tolerogenic antigen-presenting cells such as dendritic cells. Whether the allergy-protective potential of prenatal vitamin D is mediated through such mechanisms is, however, unknown. OBJECTIVE To evaluate the association...

Journal: :Journal of immunology 2009
Sonia Chamorro Juan J García-Vallejo Wendy W J Unger Rosette J Fernandes Sven C M Bruijns Sandra Laban Bart O Roep Bert A 't Hart Yvette van Kooyk

Tolerogenic dendritic cells (TDC) offer a promising therapeutic potential to ameliorate autoimmune diseases. Reported to inhibit adaptive immune responses, little is known about their innate immunity receptor repertoire. In this study, we compared three types of human TDC (IL-10-DC, dexamethasone (DX)-DC, and 1,25(OH)(2)D(3)-DC) by their TLR expression and response to a set of TLR ligands. TDC ...

Journal: :Journal of immunology 2006
Claudia Montagnoli Francesca Fallarino Roberta Gaziano Silvia Bozza Silvia Bellocchio Teresa Zelante Wiswanath P Kurup Lucia Pitzurra Paolo Puccetti Luigina Romani

The inherent resistance to diseases caused by Aspergillus fumigatus suggests the occurrence of regulatory mechanisms that provide the host with adequate defense without necessarily eliminating the fungus or causing unacceptable levels of host damage. In this study, we show that a division of labor occurs between functionally distinct regulatory T cells (Treg) that are coordinately activated by ...

Journal: :Proceedings of the National Academy of Sciences 2020

2003
E. E. SERCARZ

Neonatal T lymphocyte tolerance to proteins has been extensively studied, but the underlying mechanisms are still unknown (1-3). One hypothesis is that tolerance is due to the inactivation of T cells on contact with antigen at an early stage of development. Alternatively, tolerance may be the result of the stimulation of other T cells, which actively suppress subsequent responses. We have devel...

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