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4665 results sorted by

Measles virus induces expression of SIP110, a constitutively membrane clustered lipid phosphatase, which inhibits T cell proliferation

Interference of measles virus (MV) with phosphatidyl-inositol-3-kinase (PI3K) activation in response to T cell receptor ligation was identified as important for the induction of T cell paralysis. We now show that MV exposure of unstimulated T cells...
Authors: Avota E, Harms H, Schneider-Schaulies S

Sumoylation of Daxx Regulates IFN-Induced Growth Suppression of B Lymphocytes and the Hormone Receptor-Mediated Transactivation

Daxx has been shown to play an essential role in type I IFN-mediated suppression of B cell development and apoptosis. Recently, we demonstrated that Tyk2 is directly involved in IFN signaling for the induction and translocation of Daxx, which may...
Authors: Muromoto R, Ishida M, Sugiyama K, Sekine Y, Oritani K, Shimoda K, Matsuda T

Fine Mapping of Genetic Susceptibility to Polycystic Ovary Syndrome on Chromosome 19p13.2 and Tests for Regulatory Activity

Context: Little is known about genes that contribute to polycystic ovary syndrome (PCOS). We previously found linkage and association of PCOS with the dinucleotide marker D19S884 in two independent sets of families; allele 8 of D19S884 confers...
Authors: Stewart DR, Dombroski B, Urbanek M, Ankener W, Ewens KG, Wood JR, Legro RS, Strauss JF 3rd, Dunaif...

A Single Common Portal for Clathrin-mediated Endocytosis of Distinct Cargo Governed by Cargo-selective Adaptors

Sorting of transmembrane cargo into clathrin-coated vesicles requires endocytic adaptors, yet RNA interference (RNAi)-mediated gene silencing of the AP-2 adaptor complex only disrupts internalization of a subset of clathrin-dependent cargo. This...
Authors: Keyel PA, Mishra SK, Roth R, Heuser JE, Watkins SC, Traub LM

Small Interfering RNA-Mediated Knockdown of Notch Ligands in Primary CD4+ T Cells and Dendritic Cells Enhances Cytokine Production

The key interaction in the adaptive immune system's response to pathogenic challenge occurs at the interface between APCs and T cells. Families of costimulatory and coinhibitory molecules function in association with the cytokine microenvironment to...
Authors: Stallwood Y, Briend E, Ray KM, Ward GA, Smith BJ, Nye E, Champion BR, McKenzie GJ

Regulation of constitutive and UVR-induced skin pigmentation by melanocortin 1 receptor isoforms

Melanin synthesized by epidermal melanocytes protects the skin against UVR-induced DNA damage and skin cancer. Exposure to UVR increases the synthesis of the photoprotective eumelanin on activation of MC1R, a melanoma susceptibility gene. We studied...
Authors: Rouzaud F, Costin GE, Yamaguchi Y, Valencia JC, Berens WF, Chen KG, Hoashi T, Bohm M, Abdel-Malek...

Sema4D/plexin-B1 activates GSK-3beta through R-Ras GAP activity, inducing growth cone collapse

Plexins are receptors for the axonal guidance molecules known as semaphorins, and the semaphorin 4D (Sema4D) receptor plexin-B1 induces repulsive responses by functioning as an R-Ras GTPase-activating protein (GAP). Here we characterized the...
Authors: Ito Y, Oinuma I, Katoh H, Kaibuchi K, Negishi M

Molecular network and chromosomal clustering of genes involved in synaptic plasticity in the hippocampus

Gene transcription is required for establishing and maintaining the enduring form of long term potentiation (LTP). However, the transcriptome and its associated molecular programs that support LTP are not well understood. The purpose of this study...
Authors: Park CS, Gong R, Stuart J, Tang SJ

Phagocyte cell migration is mediated by phospholipases PLD1 and PLD2

We have investigated whether the signaling protein phospholipase D is implicated in leukocyte cell motility. Treating differentiated HL-60 cells with small interfering RNAs (siRNAs), to deplete endogenous expression of the PLD1 isoform, led to an...
Authors: Lehman N, Di Fulvio M, McCray N, Campos I, Tabatabaian F, Gomez-Cambronero J

Selection by flow-sorting of genetically transformed, GFP-expressing blood stages of the rodent malaria parasite, Plasmodium berghei

This protocol describes a methodology for the genetic transformation of the rodent malaria parasite Plasmodium berghei and the subsequent selection of transformed parasites expressing green fluorescent protein (GFP) by flow-sorting. It provides...
Authors: Janse CJ, Franke-Fayard B, Waters AP
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