Search Results

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

Nurr1-RXR heterodimers mediate RXR ligand-induced signaling in neuronal cells

The retinoid X receptor (RXR) is essential as a common heterodimerization partner of several nuclear receptors (NRs). However, its function as a bona fide receptor for endogenous ligands has remained poorly understood. Such a role would depend on the...

Authors: Wallen-Mackenzie A, De Urquiza AM, Petersson S, Rodriguez FJ, Friling S, Wagner J, Ordentlich P,...

High-resolution multicolor imaging of dynamic signaling complexes in T cells stimulated by planar substrates

The dynamic visualization of developing immunological synapses has been hindered by the difficulty of imaging the contact between the T cell and the antigen-presenting cell (APC). Here, we describe a technique in which T cell responses are...

Authors: Bunnell SC, Barr VA, Fuller CL and Samelson LE

Membrane glucocorticoid receptors (mGCR) are expressed in normal human peripheral blood monunuclear cells and up-regulated after in vitro stimulation and in patients with rheumatoid arthritis

Glucocorticoids mediate their therapeutic actions mostly by genomic effects via cytosolic receptors, but some effects are too rapid to be mediated by changes at the genomic level. The detailed mechanisms of these nongenomic actions are still unclear....

Authors: Bartholome B, Spies CM, Gaber T, Schuchmann S, Berki T, Kunkel D, Bienert M, Radbruch A, Burmester...

Nucleoporation of dendritic cells: efficient gene transfer by electroporation into human monocyte-derived dendritic cells

Dendritic cells (DCs) are ideal accessory cells in the developing field of gene therapy. Although viral transfection of DCs has become widespread, non-viral transfection of DCs has shown disappointing results. Recently, a new technique for...

Authors: Lenz P, Bacot SM, Frazier-Jessen MR and Feldman GM

T cell receptor ligation induces the formation of dynamically regulated signaling assemblies.

Tcell antigen receptor (TCR) ligation initiates tyrosine kinase activation, signaling complex assembly, and immune synapse formation. Here, we studied the kinetics and mechanics of signaling complex formation in live Jurkat leukemic T cells using...

Authors: Bunnell SC, Hong DI, Kardon JR, Yamazaki T, McGlade CJ, Barr VA and Samelson LE

Laforin, the dual-phosphatase responsible for Lafora disease, interacts with R5 (PTG), a regulatory subunit of protein phosphatase-1 that enhances glycogen accumulation

Laforin, the dual-phosphatase responsible for Lafora disease, interacts with R5 (PTG), a regulatory subunit of protein phosphatase-1 that enhances glycogProgressive myoclonus epilepsy of Lafora type (LD, MIM 254780) is a fatal autosomal recessive...

Authors: Fernandez-Sanchez ME, Criado-Garcia O, Heath KE, Garcia-Fojeda B, Medrano-Fernandez I, Gomez-Garre...

Proteasome inhibition results in TRAIL sensitization of primary keratinocytes by removing the restistance-mediating block of effector caspase maturation

Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) exerts potent cytotoxic activity against transformed keratinocytes, whereas primary keratinocytes are relatively resistant. In several cell types, inhibition of the proteasome sensitizes...

Authors: Leverkus M, Sprick MR, Wachter T, Mengling T, Baumann B, Serfling E, Brocker EB, Goebeler M, Neumann...

Determinants of Notch-3 receptor expression and signaling in vascular smooth muscle cells. Implications in cell-cycle regulation

The Notch family of receptors and ligands plays an important role in cell fate determination, vasculogenesis, and organogenesis. Mutations of the Notch-3 receptor result in an arteriopathy that predisposes to early-onset stroke. However, the...

Authors: Campos AH, Wang W, Pollmann MJ and Gibbons GH

LIME: A new membrane raft-associated adaptor protein involved in CD4 and CD8 coreceptor signaling

Lymphocyte membrane rafts contain molecules critical for immunoreceptor signaling. Here, we report identification of a new raft-associated adaptor protein LIME (Lck-interacting molecule) expressed predominantly in T lymphocytes. LIME becomes tyrosine...

Authors: Brdickova N, Brdicka T, Angelisova P, Horvath O, Spicka J, Hilgert I, Paces J, Simeoni L, Kliche S,...

Data Type

Category

Research Area

Platform

Topic