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Two subsets of memory T lymphocytes with distinct homing potentials and effector functions
TLDR
It is shown that expression of CCR7, a chemokine receptor that controls homing to secondary lymphoid organs, divides human memory T cells into two functionally distinct subsets, which are named central memory (TCM) and effector memory (TEM).
Efficient presentation of soluble antigen by cultured human dendritic cells is maintained by granulocyte/macrophage colony-stimulating factor plus interleukin 4 and downregulated by tumor necrosis
TLDR
Cultured DCs are as efficient as antigen-specific B cells in presenting tetanus toxoid (TT) to specific T cell clones and their efficiency of antigen presentation can be further enhanced by specific antibodies via FcR- mediated antigen uptake.
Central memory and effector memory T cell subsets: function, generation, and maintenance.
TLDR
This review addresses the heterogeneity of TCM and TEM, their differentiation stages, and the current models for their generation and maintenance in humans and mice.
Surface phenotype and antigenic specificity of human interleukin 17–producing T helper memory cells
TLDR
It is demonstrated that human TH-17 cells have distinct migratory capacity and antigenic specificities and a link between microbial products, T helper cell differentiation and homing in response to fungal antigens is established.
Two subsets of memory T lymphocytes with distinct homing potentials and effector functions
TLDR
It is shown that expression of CCR7, a chemokine receptor that controls homing to secondary lymphoid organs, divides human memory T cells into two functionally distinct subsets, which are named central memory (TCM) and effector memory (TEM).
Dendritic cells use macropinocytosis and the mannose receptor to concentrate macromolecules in the major histocompatibility complex class II compartment: downregulation by cytokines and bacterial
TLDR
The capacity of DCs to capture and process antigen could be modulated by exogenous stimuli was investigated and it was found that DCs respond to tumor necrosis factor alpha, CD40 ligand, IL-1, and lipopolysaccharide with a coordinate series of changes that include downregulation of macropinocytosis and Fc receptors, disappearance of the class II compartment, and upregulation of adhesion and costimulatory molecules.
Production of interleukin 22 but not interleukin 17 by a subset of human skin-homing memory T cells
TLDR
The differentiation of T cells producing only IL-22 was efficiently induced in naive T cells by plasmacytoid dendritic cells in an IL-6- and tumor necrosis factor–dependent way and delineate a previously unknown subset of human CD4+ effector T cells dedicated to skin pathophysiology.
C-C chemokine receptor 6–regulated entry of TH-17 cells into the CNS through the choroid plexus is required for the initiation of EAE
TLDR
These results identify distinct molecular requirements and ports of lymphocyte entry into uninflamed versus inflamed CNS and suggest that the CCR6-CCL20 axis in the choroid plexus controls immune surveillance of the CNS.
Plasmacytoid monocytes migrate to inflamed lymph nodes and produce large amounts of type I interferon
TLDR
Results, with the distinct cell phenotype, indicate that plasmacytoid monocytes represent a specialized cell lineage that enters inflamed lymph nodes at high endothelial venules, where it produces type I interferon.
Ligation of CD40 on dendritic cells triggers production of high levels of interleukin-12 and enhances T cell stimulatory capacity: T-T help via APC activation
TLDR
It is found that ligation of CD40 by CD40L triggers the production of extremely high levels of bioactive IL-12, which is the most potent stimulus in upregulating the expression of ICAM-1, CD80, and CD86 molecules on DCs.
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