Abstract：
:As a member of the Rab small GTPase family, Rab11a has been shown to be involved in different vesicle trafficking processes. In earlier work we identified Rab11a to be present in GLUT4-containing vesicles after insulin stimulation and showed its involvement in insulin-dependent glucose uptake. However, it remained elusive if Rab11a is directly activated by the insulin signalling cascade and at which step a potential activation occurs. To examine the GTP-loading of Rab11a, we introduced a biotinylated GTP-analog into H9c2-hIR cells, transiently overexpressing HA-tagged Rab11a, and measured its binding to the GTPase after insulin stimulation. We observed that Rab11a is transiently GTP-loaded after insulin stimulation with a 2.3 (+/-0.3) fold activation (n=5), reaching its maximum after 4 min and declining back to basal after additional 2 min. The activation of Rab11a is phosphatidylinositol 3-kinase (PI3-kinase) dependent and downstream of Akt, as shown by in vitro knockdown of this kinase. These data show that Rab11a is directly activated by insulin and represents an element of the GLUT4 trafficking machinery.
journal_name
Cell Signaljournal_title
Cellular signallingauthors
Schwenk RW,Eckel Jdoi
10.1016/j.cellsig.2006.10.008subject
Has Abstractpub_date
2007-04-01 00:00:00pages
825-30issue
4eissn
0898-6568issn
1873-3913pii
S0898-6568(06)00287-7journal_volume
19pub_type
杂志文章abstract：:The complex dynamic structure of the plasma membrane plays critical roles in cellular signaling; interactions with the membrane lipid milieu, spatial segregation within and between cellular membranes and/or targeting to specific membrane-associated scaffolds are intimately involved in many signal transduction pathways...
journal_title：Cellular signalling
pub_type： 杂志文章,评审
doi：10.1016/j.cellsig.2007.07.012
更新日期：2008-01-01 00:00:00
abstract：:Recycling of the majority of agonist-internalized GPCR is dependent on a type I-PDZ "barcode" in their C-tail. The recycling of wild-type (WT) ß1-AR is also dependent on its default "type-1 PDZ barcode", but trafficking of the ß1-AR is inhibited when PKA or its substrate serine at position 312 (Ser312) are inactivated...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2016.10.014
更新日期：2017-01-01 00:00:00
abstract：:Calcium has long been recognized as an important regulator of cell cycle transitions although the mechanisms are largely unknown. A functional genomic screen has identified genes involved in the regulation of early cell cycle progression by calcium. These genes when overexpressed confer the ability to bypass the G1/S ...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2007.10.030
更新日期：2008-02-01 00:00:00
abstract：:The effects of ouabain and monensin upon basal and carbachol-stimulated inositol phospholipid breakdown in rat cerebral cortical miniprisms have been investigated. Basal inositol phospholipid breakdown was increased by both compounds at both 6 and 18 mM K+. Enhancement of the carbachol response at 6 mM, but not at 18 ...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/0898-6568(91)90046-w
更新日期：1991-01-01 00:00:00
abstract：:The long cyclic AMP (cAMP)-specific phosphodiesterase isoform, PDE4A5 (PDE4A subfamily isoform variant 5), when transiently expressed in COS-7 cells, was shown in subcellular fractionation studies to be associated with both membrane and cytosol fractions, with immunofluorescence analyses identifying PDE4A5 as associat...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/s0898-6568(01)00264-9
更新日期：2002-05-01 00:00:00
abstract：:Measurements of prostaglandin E2 (PGE2)-induced adenylyl cyclase activity in membranes isolated from epididymal rat adipocytes revealed inhibition of cAMP production at low concentrations of PGE2 (less than 10 mM) and stimulation at higher concentrations. This biphasic effect of PGE2 was obtained when adenylyl cyclase...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/0898-6568(92)90073-h
更新日期：1992-05-01 00:00:00
abstract：:We have studied the effects of cholinergic agonists on the rates of insulin release and the concentrations of diacylglycerol (DAG) and intracellular free Ca2+ ([Ca2+]i) in the beta-cell line MIN6. Insulin secretion was stimulated by glucose, by glibenclamide and by bombesin. In the presence of glucose, both acetylchol...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/0898-6568(93)90038-n
更新日期：1993-11-01 00:00:00
abstract：:In extracts of human platelets, three isoenzymes of cyclic nucleotide phosphodiesterase (PDE), namely, PDE2, PDE3, and PDE5, were identified; activities of PDE1 and PDE4 were not detected. In human platelets, the cGMP-hydrolytic activity was about six times higher than the cAMP-hydrolytic activity, and PDE5 and PDE3 a...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/s0898-6568(96)00112-x
更新日期：1996-12-01 00:00:00
abstract：:Calmodulin (CaM) antagonists, trifluoperazine (TFP) or calmidazolium (R24571), dose-dependently inhibited cAMP and folic acid (FA) chemotaxis in Dictyostelium. Developing, starved, and refed cells were compared to determine if certain CaM-binding proteins (CaMBPs) and CaM-dependent phosphorylation events could be iden...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/s0898-6568(01)00187-5
更新日期：2001-08-01 00:00:00
abstract：:Both type I interferons (IFNs) and interferon regulatory factors (IRFs) are well characterized in viral infections, whereas they are far less studied in bacterially activated toll-like receptor (TLR) pathways. Here, we studied the involvement of IRF1 and IRF2 in TLR2-mediated responses. In mouse macrophages, IRF2 was ...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2008.06.017
更新日期：2008-10-01 00:00:00
abstract：:Cannabinoids exert a variety of physiological and pharmacological responses in humans through interaction with specific cannabinoid receptors. Cannabinoid receptors described to date belong to the seven-transmembrane-domain receptor superfamily and are coupled through the inhibitory G(i) protein to adenylyl cyclase in...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/s0898-6568(03)00036-6
更新日期：2003-09-01 00:00:00
abstract：:Activation of phosphatidylinositol (PI)-kinase is involved in the regulation of a wide array of cellular activities. The enzyme exists as a dimer, consisting of a catalytic and a regulatory subunit. Five isoforms of the regulatory subunit have been identified and classified into three groups comprising respectively 85...
journal_title：Cellular signalling
pub_type： 杂志文章,评审
doi：10.1016/s0898-6568(99)00086-8
更新日期：2000-03-01 00:00:00
abstract：:We previously showed that protein kinase C (PKC) induces phosphatidylcholine-hydrolysing phospholipase D activation in osteoblast-like MC3T3-E1 cells and that tyrosine kinase is involved in this activation. Wortmannin, a potent inhibitor of phosphatidylinositol 3-kinase, markedly enhanced the formation of choline indu...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/0898-6568(94)00080-u
更新日期：1995-03-01 00:00:00
abstract：:Sustained activation of Akt kinase acts as a focal regulator to increase cell growth and survival, which causes tumorigenesis including breast cancer. Statins, potent inhibitors of 3-hydroxy-3-methylglutaryl coenzyme A reductase, display anticancer activity. The molecular mechanisms by which statins block cancer cell ...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2009.12.010
更新日期：2010-05-01 00:00:00
abstract：:Adenosine and its analogues inhibited increases in divalent cation influx stimulated by platelet-activating factor (PAF) and formyl-methionyl-leucyl-phenylalanine (FMLP) in a dose-dependent fashion. This effect was antagonized by theophylline, an adenosine receptor antagonist. When extracellular adenosine was removed ...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/0898-6568(92)90023-2
更新日期：1992-09-01 00:00:00
abstract：:CC chemokine receptor 5 (CCR5) is a seven-transmembrane, G protein-coupled receptor (GPCR) which regulates trafficking and effector functions of memory/effector T-lymphocytes, macrophages, and immature dendritic cells. It also serves as the main coreceptor for the entry of R5 strains of human immunodeficiency virus (H...
journal_title：Cellular signalling
pub_type： 杂志文章,评审
doi：10.1016/j.cellsig.2004.04.007
更新日期：2004-11-01 00:00:00
abstract：:Protein kinase D3 is a novel member of the serine/threonine kinase family PKD. The regulatory region of PKD contains a tandem repeat of C1 domains designated C1a and C1b that bind diacylglycerol and phorbol esters, and are important membrane targeting modules. Here, we investigate the activities of individual C1 domai...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2005.02.007
更新日期：2005-11-01 00:00:00
abstract：:Cellular signal transmission requires the dynamic formation of spatiotemporally controlled molecular interactions. At the cell surface information is received by receptor complexes and relayed through intracellular signaling platforms which organize the actions of functionally interacting signaling enzymes and substra...
journal_title：Cellular signalling
pub_type： 杂志文章,评审
doi：10.1016/j.cellsig.2017.05.012
更新日期：2017-09-01 00:00:00
abstract：:Endothelial migration and proliferation are fundamental processes in angiogenesis and wound healing of injured or inflamed vessels. The present study aimed to investigate the regulation of the Eph/ephrin-system during endothelial proliferation and the impact of the ligand ephrin-A1 on proliferation and migration of hu...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2016.10.003
更新日期：2017-01-01 00:00:00
abstract：:Cellular growth and glucose uptake are regulated by multiple signals generated by the insulin receptor. The mechanisms of individual modulation of these signals remain somewhat elusive. We investigated the role of CaMKII in insulin signalling in a rat skeletal muscle cell line, demonstrating that CaMKII modulates the ...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2009.01.022
更新日期：2009-05-01 00:00:00
abstract：:High affinity Ins(1,4,5)P3-binding sites of permeabilized hepatocytes are probably the ligand recognition sites of the receptors that mediate the effects of Ins(1,4,5)P3 on intracellular Ca2+ mobilization. We have now solubilized these sites from rat liver membranes in the zwitterionic detergent, CHAPS, and shown that...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/0898-6568(91)90037-u
更新日期：1991-01-01 00:00:00
abstract：:Tooth and bone are independent tissues with a close relationship. Both are composed of a highly calcified outer structure and soft inner tissue, and both are constantly under mechanical stress. In particular, the alveolar bone and tooth constitute an occlusion system and suffer from masticatory and occlusal force. Thu...
journal_title：Cellular signalling
pub_type： 杂志文章,评审
doi：10.1016/j.cellsig.2020.109877
更新日期：2021-02-01 00:00:00
abstract：:Follistatin-like 1 (FSTL1) functions as a pivotal modulator of inflammation and is implicated in many inflammatory diseases such as rheumatoid arthritis. Here, we report that FSTL1 is strongly upregulated and secreted during osteoclast differentiation of bone marrow-derived macrophages (BMMs) and that FSTL1 positively...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2016.05.018
更新日期：2016-09-01 00:00:00
abstract：PURPOSE:Our study aimed to study the role of lncRNA TP73-AS1/miR-539/MMP-8 axis in modulating M2 macrophage polarization in hepatocellular carcinoma (HCC). METHODS:The gene expression levels of TP73-AS1, miR-539 and MMP-8 were modified by transfection with the overexpression or knockdown vectors. The patient survival ...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2020.109738
更新日期：2020-11-01 00:00:00
abstract：:The induction of cytolytic activity in PC60, a murine T-cell hybridoma, is paralleled by a rise in the level of BLT-esterase (N-alpha-benzyloxycarbonyl-L-lysine thiobenzyl esterase), a serine esterase specific for activated T-cells. Both interleukin-1 (IL-1) and dibutyryl cAMP were albe to increase the esterase activi...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/0898-6568(90)90045-c
更新日期：1990-01-01 00:00:00
abstract：:The activation of corticotrophin-releasing hormone receptor (CRHR) 1 is implicated in neuronal injury in experimental stroke. However, little is known about the relationship between CRHR1 activation and brain endothelial barrier impairment after ischemia and reperfusion (I/R). Recently we have demonstrated that the ac...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2019.109467
更新日期：2020-02-01 00:00:00
abstract：:Treatment of lucerne suspension culture cells with glycoprotein elicitor from the phytopathogenic fungus Verticillium albo-atrum R & B triggers Ca(2+)-mediated induction of antimicrobial secondary metabolites termed phytoalexins. The present study investigated the possible role of polyphosphoinositide signal transduct...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/0898-6568(93)90026-i
更新日期：1993-05-01 00:00:00
abstract：:The adaptor protein Gab-2 coordinates the assembly of the IL-3 signalsome comprising Gab-2, Grb2, Shc, SHP-2 and PI3K. To investigate the role of the pleckstrin homology domain of Gab-2 in this process, epitope-tagged wild type Gab-2 (WTGab-2), Gab-2 lacking its PH domain (DeltaPHGab-2) and the Gab-2 PH domain alone (...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2005.09.002
更新日期：2006-08-01 00:00:00
abstract：:The type III transmembrane adaptor protein linker for activation of T cells (LAT) is essential for membrane recruitment of signalling molecules following TCR activation. Here we show that although LAT deleted in the transmembrane domain is completely soluble, it can be tyrosine phosphorylated after anti-CD3 stimulatio...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/s0898-6568(01)00131-0
更新日期：2001-03-01 00:00:00
abstract：:Human Glioblastoma is one deadly disease; the median survival time is reported to be 13.9 months after treatment. In the present study, we discovered that DHX33 is highly expressed in 84% of all Glioblastoma multiforme (GBM). Knockdown of DHX33 led to significant reduced proliferation and migration in glioblastoma cel...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2018.12.005
更新日期：2019-02-01 00:00:00
