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Weibel-Palade bodies recruit Rab27 by a content-driven, maturation-dependent mechanism that is independent of cell type

The identification of organelles is crucial for efficient cellular function, yet the basic underlying mechanisms by which this might occur have not been established. One group of proteins likely to be central to organelle identity is the Rab family...

Authors: Hannah MJ, Hume AN, Arribas M, Williams R, Hewlett LJ, Seabra MC and Cutler DF

Imaging antigen-induced PI3K activation in T cells

Imaging antigen-induced PI3K activation in T cells. Harriague J, Bismuth G. Departement de Biologie Cellulaire, Institut Cochin, INSERM U567, CNRS UMR 7627, Universite Rene Descartes, 22 rue Mechain, 75014 Paris, France. Activation of...

Authors: Harriague J and Bismuth G

Regulation of Bcl-2 expression by C/EBP in t(14;18) lymphoma cells

In follicular lymphomas with the t(14;18) translocation, there is increased expression of the bcl-2 gene, which is dependent upon regulatory elements within the bcl-2 5' flanking region and the immunoglobulin heavy-chain gene enhancers. We found that...

Authors: Heckman CA, Wheeler MA and Boxer LM

Disruption of basal JNK activity differentially affects key fibroblast function important for wound healing

We used both a gene knockout approach and pharmacologic modulation to study the implication of the JNK pathway in regulating fibroblast motility, capacity to contract mechanically unloaded collagen gels, and type I collagen gene expression in vitro....

Authors: Javelaud D, Laboureau J, Gabison E, Verrecchia F and Mauviel A

Granulocyte-macrophage colony-stimulating factor and interleukin-3 induce cell cycle progression through the synthesis of c-Myc protein by internal ribosome entry site-mediated translation via phosphatidylinositol 3-kinase pathway in human factor-dependent leukemic cells

Granulocyte-macrophage colony-stimulating factor and interleukin-3 induce cell cycle progression through the synthesis of c-Myc protein by internal ribosome entry site-mediated translation via phosphatidylinositol 3-kinase pathway in human...

Authors: Kobayashi N, Saeki K and Yuo A

Recognition of a novel stage of betaherpesvirus latency in human herpesvirus 6

Latency-associated transcripts of human herpesvirus 6 (H6LTs) (K. Kondo et al. J. Virol. 76:4145-4151, 2002) were maximally expressed at a fairly stable intermediate stage between latency and reactivation both in vivo and in vitro. H6LTs functioned...

Authors: Kondo K, Sashhara J, Shimada K, Takemoto M, Amo K, Miyagawa H and Yamanishi K

ARF6 stimulates clathrin/AP-2 recruitment to synaptic membranes by activating phosphatidylinositol phosphate kinase type I gamma

Clathrin-mediated endocytosis of synaptic vesicle membranes involves the recruitment of clathrin and AP-2 adaptor complexes to the presynaptic plasma membrane. Phosphoinositides have been implicated in nucleating coat assembly by directly binding to...

Authors: Krauss M, Kinuta M, Wenk MR, De Camilli P, Takei K and Haucke V

Histamine enhances TGF-beta1-mediated suppression of TH2 responses

Susceptibility of T cells to TGF-beta1 produced by regulatory T cells has an important impact on the induction and maintenance of peripheral tolerance and therefore on the development of autoimmunity, cancer, and allergy. Histamine not only mediates...

Authors: Kunzmann S, Mantel PY, Wohlfahrt JG, Akdis CA, Blaser K and Schmidt-Weber CB

SARA and Hgs attenuate susceptibility to TGF-beta1-mediated T cell supression

Transforming growth factor-beta1 (TGF-beta1) is a pluripotent cytokine that controls peripheral T cell tolerance mainly in mucosal immunity. It is secreted by regulatory T cells (Tr /Th3) but also by other immununologically active cells. Smad anchor...

Authors: Kunzmann S, Wohlfahrt JG, Itoh S, Asao H, Komada M, Akdis CA, Blaser K and Schmidt-Weber CB

IL-10-inducible Bcl-3 negatively regulates LPS-induced TNF-alpha production in macrophages

Interleukin-10 (IL-10) plays an important role in prevention of chronic inflammation in vivo. However, the molecular mechanism by which IL-10 exerts its anti-inflammatory response is poorly understood. Here, we performed a microarray analysis and...

Authors: Kuwata H, Watanabe Y, Miyoshi H, Yamamoto M, Kaisho T, Takeda K and Akira S

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