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Single-particle tracking of murine polyoma virus-like particles on live cells and artificial membranes

The lateral mobility of individual murine polyoma virus-like particles (VLPs) bound to live cells and artificial lipid bilayers was studied by single fluorescent particle tracking using total internal reflection fluorescence microscopy. The particle...
Authors: Ewers H, Smith AE, Sbalzarini IF, Lilie H, Koumoutsakos P and Helenius A

A novel anti-human DR5 monoclonal antibody with tumoricidal activity induces caspase-dependent and caspase-independent cell death

Like anti-Fas monoclonal antibodies, some monoclonal antibodies against tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) receptors have tumoricidal activity too. In this article we report a novel mouse anti-human DR5 monoclonal...
Authors: Guo Y, Chen C, Zheng Y, Zhang J, Tao X, Liu S, Zheng D and Liu Y

Tumor Suppressor p53 Binds with High Affinity to CTG{middle dot}CAG Trinucleotide Repeats and Induces Topological Alterations in Mismatched Duplexes

DNA binding is central to the ability of p53 to function as a tumor suppressor. In line with the remarkable functional versatility of p53, which can act on DNA as a transcription, repair, recombination, replication, and chromatin accessibility...
Authors: Walter K, Warnecke G, Bowater R, Deppert W and Kim EL

Insulin-like growth factor binding protein-5 is a target of matrix metalloproteinase-7: implications for epithelial-mesenchymal signaling

Matrix metalloproteinase-7 (MMP-7) is localized to epithelial cells and is up-regulated in many cancers and in inflammation. We now report that MMP-7 targets a key mesenchymal cell type, the myofibroblast. Recombinant MMP-7 stimulated the...
Authors: Hemers E, Duval C, McCaig C, Handley M, Dockray GJ and Varro A

Nox4 Is Critical for Hypoxia-Inducible Factor 2- Transcriptional Activity in von Hippel-Lindau-Deficient Renal Cell Carcinoma

Inactivation of the von Hippel-Lindau tumor suppressor (VHL) is an early event in >60% of sporadic clear cell renal cell carcinoma (RCC). Loss of VHL E3 ubiquitin ligase function results in accumulation of the alpha-subunit of the hypoxia-inducible...
Authors: Maranchie JK and Zhan Y

Protein kinase C-epsilon regulates the apoptosis and survival of glioma cells

In this study, we examined the role of protein kinase C (PKC)-epsilon in the apoptosis and survival of glioma cells using tumor necrosis factor-related apoptosis inducing ligand (TRAIL)-stimulated cells and silencing of PKCepsilon expression....
Authors: Okhrimenko H, Lu W, Xiang C, Hamburger N, Kazimirsky G and Brodie C

17Beta-estradiol attenuates PDGF signaling in vascular smooth muscle cells at the postreceptor level

Estrogens are known to display significant vasoprotective effects in premenopausal women. PDGF is an important mediator of vascular smooth muscle cell (VSMC) migration and proliferation, and thus atherogenesis. We analyzed the effects of...
Authors: Kappert K, Caglayan E, Huntgeburth M, Baumer AT, Sparwel J, Uebel M and Rosenkranz S

An alternative inhibitor overcomes resistance caused by a mutation of the epidermal growth factor receptor

Mutations of the epidermal growth factor receptor (EGFR) gene have been identified in non-small cell lung cancer specimens from patients responding to anilinoquinazoline EGFR inhibitors. However, clinical resistance to EGFR inhibitor therapy is...
Authors: Kobayashi S, Ji H, Yuza Y, Meyerson M, Wong KK, Tenen DG and Halmos B

A prohormone convertase cleavage site within a predicted alpha-helix mediates sorting of the neuronal and endocrine polypeptide VGF into the regulated secretory pathway

Distinct intracellular pathways are involved in regulated and constitutive protein secretion from neuronal and endocrine cells, yet the peptide signals and molecular mechanisms responsible for targeting and retention of soluble proteins in secretory...
Authors: Garcia AL, Han SK, Janssen WG, Khaing ZZ, Ito T, Glucksman MJ, Benson DL and Salton SR

Constitutive NF-kappaB and NFAT activation in aggressive B-cell lymphomas synergistically activates the CD154 gene and maintains lymphoma cell survival

Abnormalities in B-lymphocyte CD40 ligand (CD154) expression have been described for a number of immunologic diseases, including B-cell lymphomas. Although functional analysis of the CD154 gene and protein has been extensive, little is known about...
Authors: Pham LV, Tamayo AT, Yoshimura LC, Lin-Lee YC and Ford RJ