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4741 results sorted by

Nerve growth factor receptor TrkA signaling in breast cancer cells involves KU70 to prevent apoptosis

The nerve growth factor (NGF) - tyrosine kinase receptor TrkA plays a critical role in various neuronal and non-neuronal cell types by regulating cell survival, differentiation and proliferation. In breast cancer cells, TrkA stimulation results in...
Authors: Com E, Lagadec C, Page A, El Yazidi-Belkoura I, Slomianny C, Spencer A, Hammache D, Rudkin BB,...

CREB-binding protein is a mediator of neuroblastoma cell death induced by the histone deacetylase inhibitor trichostatin A

The cytotoxic mechanism of the histone deacetylase inhibitor (HDACI) Trichostatin A (TSA) was explored in a neuroblastoma (NB) model. TSA induces cell death in neuroblastic-type NB cells by increasing the acetylation of Ku70, a Bax-binding protein....
Authors: Subramanian C, Jarzembowski JA, Opipari AW, Castle VP, Kwok RP

Regulation of JNK by MKK-7 in fibroblast-like synoviocytes

OBJECTIVE: JNK regulates matrix metalloproteinase (MMP) gene expression and joint destruction in rheumatoid arthritis (RA). Previous studies demonstrated that the 2 upstream MAPK kinases (MKK-4 and MKK-7) are phosphorylated in RA synovium and form a...
Authors: Inoue T, Hammaker D, Boyle DL, Firestein GS

Mitochondrial proteins Bnip3 and Bnip3L are involved in anthrax lethal toxin-induced macrophage cell death

Anthrax lethal toxin (LeTx) induces rapid cell death of RAW246.7 macrophages. We recently found that a small population of these macrophages is spontaneously and temporally refractory to LeTx-induced cytotoxicity. Analysis of genome-wide transcripts...
Authors: Ha SD, Ng D, Lamothe J, Valvano MA, Han J, Kim SO

The Nogo-66 receptor NgR1 is required only for the acute growth cone-collapsing but not the chronic growth-inhibitory actions of myelin inhibitors

Interdepartmental Graduate Program in Neuroscience, Department of Biomedical Genetics, University of Rochester School of Medicine and Dentistry, Rochester, New York 14642, USA. Neuronal Nogo-66 receptor 1 (NgR1) has been proposed to function as an...
Authors: Chivatakarn O, Kaneko S, He Z, Tessier-Lavigne M, Giger RJ

Hip is a pro-survival substrate of granzyme B

The extended substrate specificity of granzyme B (GrB) was used to identify substrates among the chaperone superfamily. This approach identified Hsp90 and Bag1-L as novel GrB substrates and an additional GrB cleavage site was identified in the...
Authors: Hostetter DR, Loeb CR, Chu F, Craik CS

Signal-Transducing Adaptor Protein-2 Regulates Integrin-Mediated T Cell Adhesion through Protein Degradation of Focal Adhesion Kinase

Signal-transducing adaptor protein-2 (STAP-2) is a recently identified adaptor protein that contains pleckstrin homology- and Src homology 2-like domains as well as a YXXQ motif in its C-terminal region. Our previous studies demonstrated that STAP-2...
Authors: Sekine Y, Tsuji S, Ikeda O, Sugiyma K, Oritani K, Shimoda K, Muromoto R, Ohbayashi N, Yoshimura A,...

BUB1 mediation of caspase-independent mitotic death determines cell fate

The spindle checkpoint that monitors kinetochore-microtubule attachment has been implicated in tumorigenesis; however, the relation between the spindle checkpoint and cell death remains obscure. In BUB1-deficient (but not MAD2-deficient) cells,...
Authors: Niikura Y, Dixit A, Scott R, Perkins G, Kitagawa K

Cutting Edge: Vitamin D-Mediated Human Antimicrobial Activity against Mycobacterium tuberculosis Is Dependent on the Induction of Cathelicidin

Host defense against intracellular pathogens depends upon innate and adaptive antimicrobial effector pathways. TLR2/1-activation of monocytes leads to the vitamin D-dependent production of cathelicidin and, at the same time, an antimicrobial activity...
Authors: Liu PT, Stenger S, Tang DH, Modlin RL

Target proteins of C/EBPp30 in AML: C/EBPp30 enhances sumoylation of C/EBPp42 via up-regulation of Ubc9

CCAAT/enhancer-binding protein alpha (C/EBPalpha) is a critical regulator for early myeloid differentiation. Mutations in C/EBPalpha occur in 10% of AML patients, leading to the expression of a 30kDa dominant negative isoform (C/EBPalphap30). In the...
Authors: Geletu M, Balkhi MY, Peer Zada AA, Christopeit M, Anto Pulikkan J, Kumar Trivedi A, Tenen DG, Behre...
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