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4633 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

The immunosuppressant rapamycin represses human immunodeficiency virus type 1 replication

The immunosuppressive macrolide rapamycin is used in humans to prevent graft rejection. This drug acts by selectively repressing the translation of proteins that are encoded by an mRNA bearing a 5'-polypyrimidine tract (e.g., ribosomal proteins,...
Authors: Roy J, Paquette JS, Fortin JF and Tremblay MJ

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

Fas-associated Factor 1, FAF1, is a member of fas death-inducing signaling complex

FAF1 has been introduced as a Fas-binding protein. However, the function of FAF1 in apoptotic execution is not established. Based on the fact that FAF1 is a Fas-binding protein, we asked if FAF1 interacted with other members of the Fas-death-inducing...
Authors: Ryu SW, Lee SJ, Park MY, Jun JI, Jung YK and Kim E

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

Endothelial cells stimulate T cell NFAT nuclear translocation in the presence of cyclosporin A: involvement of the wnt/glycogen synthase kinase-3beta pathway

T cells resistant to the immunosuppressive drug cyclosporin A (CsA) may be important mediators of chronic graft rejection. We previously reported that T cells activated in the presence of endothelial cells (EC) develop resistance to CsA, and initiate...
Authors: Salazar Murphy LL and Hughes CCW

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

CD28 engagement promotes actin polymerization through the activation of the small Rho GTPase Cdc42 in human T cells

Engagement of the costimulatory molecule CD28 is an important step in the optimal activation of T cells. Nevertheless, the specific role of CD28 in the formation of the immunological synapse and cytoskeletal changes that occur upon TCR/CD3 complex...
Authors: Salazar-Fontana LI, Barr V, Samelson LE and Bierer BE

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

Crucial role of DNA methylation in determination of clonally distributed killer cell Ig-like receptor expression patterns in NK cells

Human NK cells are characterized by the expression of surface receptors of the killer cell Ig-like receptor (KIR) family, which are involved in the specific recognition of pathogenic target cells. Each NK cell expresses and maintains an individual...
Authors: Santourlidis S, Trompeter HI, Weinhold S, Eisermann, Meyer KL, Wernet P and Uhrberg M
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