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4707 results sorted by

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, Castellܳ A, Cases-Langhoff C and Badimon L

Interactions of human myosin Va isoforms, endogenously expressed in human melanocytes, are tightly regulated by the tail domain

Primary human epidermal melanocytes express six endogenous isoforms of the human actin-associated myosin Va motor protein, involved in organelle transport. As isoforms containing exon F are most abundant in melanocytes, we hypothesized that these...
Authors: Westbroek W, Lambert J, Bahadoran P, Busca R, Herteleer MC, Smit N, Mommaas M, Ballotti R and...

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

Shear stress-induced endothelial cell polarization in mediated by Rho and Rac but not Cdc42 or PI 3-kinase

Shear stress induces endothelial polarization and migration in the direction of flow accompanied by extensive remodeling of the actin cytoskeleton. The GTPases RhoA, Rac1, and Cdc42 are known to regulate cell shape changes through effects on the...
Authors: Wojciak-Stothard B and Ridley AJ

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

Supression of endothelial adhesion molecule up-regulation with cyclopentenone prostaglandins is dissociated from IkappaB kinase inhibition and cell death induction

The cyclopentenone prostaglandins (cPG) 15-deoxy-Delta12,14-prostaglandin J2 (dPGJ2) and PGA1 can inhibit multiple steps in nuclear factor (NF)-kappaB signaling and can induce cell death. Here we characterized the effects of dPGJ2 and PGA1 on the...
Authors: Zernecke A, Erl W, Fraemohs L, Lietz M and Weber C

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

The steroidal analog GW707 activates the SREBP pathway through disruption of intracellular cholesterol trafficking

Recently, a new class of lipid-lowering agents has been described that upregulate LDL receptor (LDLr) activity. These agents are proposed to activate sterol-regulated gene expression through binding to the sterol regulatory element binding protein...
Authors: Zhang J, Dudley-Rucker N, Crowley JR, Lopez-Perez E, Issandou M, Schaffer JE and Ory DS

HAX-1, identified by differential display reverse transcription polyerase chain reaction, is overexpressed in lesional psoriasis

Psoriasis is a chronic inflammatory disease characterized by epidermal hyperplasia and an inflammatory infiltrate. The normal differentiation from basal to granular keratinocytes with subsequent apoptosis and cornification is disturbed in the...
Authors: Mirmohammadsadegh A, Tartler U, Michel G, Baer A, Walz M, Wolf R, Ruzicka T and Hengge UR

Apolopoprotein E binding to low density lipoprotein receptor related protein-1 inhibits cell migration via activation of cyclic 3',5'-adenosine monophosphate-dependend protein kinase A

Smooth muscle cell migration and proliferation contribute to neointimal hyperplasia and vascular stenosis after endothelial denudation. Previous studies revealed that apolipoprotein E (apoE) is an effective inhibitor of platelet-derived growth...
Authors: Zhu Y and Hui DY
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