Search Results

Characterization of a nuclear export signal within the human T cell leukemia virus type I transactivator protein Tax

Human T cell leukemia virus type I (HTLV-I) is the etiologic agent of adult T cell leukemia and HTLV-I-associated myelopathy/tropical spastic paraparesis. The HTLV-I transactivator protein Tax plays an integral role in the etiology of adult T cell...

Authors: Alefantis T, Barmak K, Harhaj E, Grant C and Wigdahl B

Characterization and analysis of the proximal Janus Kinase 3 promoter

Janus kinase 3 (Jak3) is a nonreceptor tyrosine kinase essential for signaling via cytokine receptors that comprise the common gamma-chain (gammac), i.e., the receptors for IL-2, IL-4, IL-7, IL-9, IL-15, and IL-21. Jak3 is preferentially expressed in...

Authors: Aringer M, Hofmann S, Frucht DM, Chen M, Centola M, Morinobu A, Visconti R, Kastner DL, Smolen JS...

Neuron-derived orphan receptor-1 (NOR-1) modulates vascular smooth muscle cell proliferation

Vascular smooth muscle cells (VSMCs) migration and proliferation play a key role in the pathophysiology of cardiovascular disease. However, the transcription factors that regulate VSMC activation are not completely characterized. By a...

Authors: Martinez-Gonzalez J, Rius J, CastellÜ³ A, Cases-Langhoff C and Badimon L

Substitution in position 3 of cyclosporin A abolishes the cyclophilin-mediated gain-of-function mechanism but not immunosuppression

Binary complex formation between the immunosuppressive drug cyclosporin A (CsA) and cyclophilin 18 is the prerequisite for the ability of CsA to inhibit the protein phosphatase activity of calcineurin, a central mediator of antigen-receptor...

Authors: Baumgrass R, Zhang Y, Erdmann F, Thiel A, Weiwad M, Radbruch A and Fischer G

Biochemical and functional characterization of Rab27a mutations occurring in Griscelli syndrome patients

Rab27a is a member of the Rab family of small GTPase proteins, and thus far is the first member to be associated with a human disease (ie, the Griscelli syndrome type 2). Mutations in the Rab27a gene cause pigment as well as cytotoxic granule...

Authors: Menasche G, Feldmann J, Houdusse A, Desaymard C, Fischer, Goud B and de Saint Basile G

Cathepsin D triggers Bax activation, resulting in selective AIF relocation in T lymphocytes entering the early commitment phase to apoptosis

Activated human T lymphocytes exposed to apoptotic stimuli targeting mitochondria (i.e. staurosporine), enter an early, caspase-independent phase of commitment to apoptosis characterized by cell shrinkage and peripheral chromatin condensation. We...

Authors: Bidère N, Lorenzo HK, Carmona S, Laforge M, Harper F, Dumont C and Senik A

Memory and flexibility of cytokine gene expression as separable properties of human TH1 and TH2 lymphocytes

CD4+ T cell priming under T helper type I (T(H)1) or T(H)2 conditions gives rise to polarized cytokine gene expression. We found that in these conditions human naive T cells acquired stable histone hyperacetylation at either the Ifng or Il4 promoter....

Authors: Messi M, Giacchetto I, Nagata K, Lanzavecchia A, Natoli G and Sallusto F

The human fascin gene promoter is highly active in mature dendritic cells due to a stage-specific enhancer

Dendritic cells (DC), regarded as the most efficient APCs of the immune system, are capable of activating naive T cells. Thus, DC are primary targets in immunotherapy. However, little is known about gene regulation in DC, and for efficient...

Authors: Bros M, Ross XL, Pautz A, Reske-Kunz AB and Ross R

Analysis of intracellular storage and regulated secretion of three von Willebrands disease-causing variants of von Willebrand factor

The rapid exocytosis of von Willebrand factor (VWF) in response to vascular injury can be attributed to the fact that VWF is stored in the Weibel-Palade bodies (WPBs) of endothelial cells. We describe a system for examining the ability of VWF to...

Authors: Michaux G, Hewlett LJ, Messenger SL, Goodeve AC, Peake IR, Daly ME and Cutler DF

Chemokine stimulation of human periphereal blood T lymphocytes induces rapid dephosphorylation of ERMs which facilitates loss of microvilli and polarization

Lymphocyte microvilli mediate initial rolling-adhesion along endothelium but are lost during transmigration from circulation to tissue. However, the mechanism for resorption of lymphocyte microvilli remains unexplored. We show that chemokine...

Authors: Brown MJ, Nijhara R, Hallam JA, Gignac M, Yamada KM, Erlandsen SL, Delon J, Kruhlak M and Shaw S

Data Type

Category

Research Area

Platform

Topic