Search Results

RhoB controls Akt trafficking and stage-specific survival of endothelial cells during vascular development

Blood vessel formation is a complex morphological process that is only beginning to be understood at the molecular level. In this study, we demonstrate a novel and critical role for the small GTPase, RhoB, in vascular development. RhoB null mice have...

Authors: Adini I, Rabinovitz I, Sun JF, Prendergast GC and Benjamin LE

A Bcr/Abl-independent, Lyn-dependent form of imatinib mesylate (STI-571) resistance is associated with altered expression of Bcl-2

The relationship between the Src kinase Lyn and Bcl-2 expression was examined in chronic myelogenous leukemia cells (K562 and LAMA84) displaying a Bcr/Abl-independent form of imatinib mesylate resistance. K562-R and LAMA-R cells that were markedly...

Authors: Dai Y, Rahmani M, Corey SJ, Dent P and Grant S

Expression of focal adhesion kinase in acute myeloid leukemia is associated with enhanced blast migration, increased cellularity and poor prognosis

Focal adhesion kinase (FAK) is a nonreceptor tyrosine kinase playing an important role in cell motility and survival. However, very little is known about FAK in normal and leukemic myeloid cells. In this study, FAK protein expression and mRNA were...

Authors: Recher C, Ysebaert L, Beyne-Rauzy O, Mansat-De Mas V, Ruidavets JB, Cariven P, Demur C, Payrastre B,...

Cryopyrin-induced interleukin 1beta secretion in monocytic cells: enhanced activity of disease-associated mutants and requirement for ASC

Several autoinflammatory disorders are associated with missense mutations within the nucleotide-binding oligomerization domain of cryopyrin. The mechanism by which cryopyrin mutations cause inflammatory disease remains elusive. To understand the...

Authors: Dowds TA, Masumoto J, Zhu L, Inohara N, Nunez G

The SH3-SAM Adaptor HACS1 is Up-regulated in B Cell Activation Signaling Cascades

HACS1 is a Src homology 3 and sterile alpha motif domain-containing adaptor that is preferentially expressed in normal hematopoietic tissues and malignancies including myeloid leukemia, lymphoma, and myeloma. Microarray data showed HACS1 expression...

Authors: Zhu YX, Benn S, Li ZH, Wei E, Masih-Khan E, Trieu Y, Bali M, McGlade CJ, Claudio JO and Stewart AK

Functional and biochemical dissection of the structure-specific nuclease ARTEMIS

During V(D)J recombination, the RAG1 and RAG2 proteins form a complex and initiate the process of rearrangement by cleaving between the coding and signal segments and generating hairpins at the coding ends. Prior to ligation of the coding ends by DNA...

Authors: Pannicke U, Ma Y, Hopfner KP, Niewolik D, Lieber MR, Schwarz K

GA binding protein regulates interleukin 7 receptor alpha-chain gene expression in T cells

The interleukin 7 receptor alpha-chain (IL-7Ralpha) is essential for T cell development in both humans and mice and for B cell development in mice. Whereas the transcription factor PU.1 regulates IL-7Ralpha expression in mouse pro-B cells via a GGAA...

Authors: Xue HH, Bollenbacher J, Rovella V, Tripuraneni R, Du YB, Liu CY, Williams A, McCoy JP and Leonard...

The serine/threonine kinase Akt promotes Fc gamma receptor-mediated phagocytosis in murine macrophages through the activation of p70S6 kinase

The serine/threonine kinase Akt Promotes Fc gamma receptor-mediated phagocytosis in murine macrophages through the activation of p70S6 kinase. Ganesan LP, Wei G, Pengal RA, Moldovan L, Moldovan N, Ostrowski MC, Tridandapani S. Division of...

Authors: Ganesan LP, Wei G, Pengal RA, Moldovan L, Moldovan N, Ostrowski MC and Tridandapani S

The negative role of cyclin G in ATM-dependent p53 activation

Cyclin G is one of the earliest p53 target genes to be identified, but its function in the p53 pathway has been elusive. Although the precise mechanisms of cyclin G in this novel network have not been explored, recent studies have demonstrated that...

Authors: Ohtsuka T, Jensen MR, Kim HG, Kim KT and Lee SW

SHIP2 Is Recruited to the Cell Membrane upon Macrophage Colony-Stimulating Factor (M-CSF) Stimulation and Regulates M-CSF-Induced Signaling

The Src homology 2-containing inositol phosphatase SHIP1 functions in hemopoietic cells to limit activation events mediated by PI3K products, including Akt activation and cell survival. In contrast to the limited cellular expression of SHIP1, the...

Authors: Wang Y, Keogh RJ, Hunter MG, Mitchell CA, Frey RS, Javaid K, Malik AB, Schurmans S, Tridandapani S,...

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