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4783 results sorted by

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

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

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

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...

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

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

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

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

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

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
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