Abstract:
:Formycin A (1.0 mM) caused a rapid, sustained and rapidly reversible inhibition of effluent radioactivity in rat pancreatic islets prelabelled with myo-[2-3H]inositol and perifused in the presence of 8.3 mM D-glucose. This coincided with a progressive decrease in islet ATP content and transient inhibition of insulin release. Thereafter, however, formycin A increased glucose-induced insulin release. Moreover, in islets that were preincubated with myo-[2-3H]inositol and then exposed during perifusion to a rise in D-glucose concentration from 2.8 to 16.7 mM, the release of insulin and 3H fractional outflow rate at both the low and high hexose concentrations were much higher when both the preincubation and perifusion were conducted in the presence, rather than absence, of formycin A. It is concluded that formycin A first inhibits and later enhances both the hydrolysis of phosphoinositides and release of insulin, these effects being possibly related to changes in the islet cell content of adenosine and/or formycin A triphosphates.
journal_name
Cell Signaljournal_title
Cellular signallingauthors
Ulusoy S,Sener A,Malaisse WJdoi
10.1016/0898-6568(95)02009-8subject
Has Abstractpub_date
1995-11-01 00:00:00pages
821-6issue
8eissn
0898-6568issn
1873-3913pii
0898656895020098journal_volume
7pub_type
杂志文章abstract::Cdc25 and Ras are two proteins required for cAMP signalling in the budding yeast Saccharomyces cerevisiae. Cdc25 is the guanine nucleotide exchange protein that activates Ras. Ras, in turn, activates adenylyl cyclase. Cdc25 has a Src homology 3 (SH3) domain near the N-terminus and a catalytic domain in the C-terminal ...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/s0898-6568(98)00044-8
更新日期:1999-02-01 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::Macropinocytosis is an actin-dependent endocytic mechanism mediating internalization of extracellular fluid and associated solutes into cells. The present study was designed to identify the specific protein kinase C (PKC) isoform(s) and downstream effectors regulating actin dynamics during macropinocytosis. We utilize...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2018.09.018
更新日期:2019-01-01 00:00:00
abstract::The global prevalence of chronic renal failure (CRF) has significantly elevated with various reports indicating there to be a 10% worldwide rate. The functions of long non-coding RNAs (lncRNAs) and their deeper association with CRF at present remain poorly understood. Hence, the aim of the present study was to investi...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2018.10.016
更新日期:2019-02-01 00:00:00
abstract::Calcineurin inhibitors such as cyclosporin A (CsA) and FK506 have been used in solid organ and hematopoietic stem cell transplantations to suppress immune function. However, these immunosuppresants are associated with severe endothelial dysfunction. We investigated whether CsA and FK506 induce endothelial dysfunction ...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2013.05.008
更新日期:2013-09-01 00:00:00
abstract::15-lipoxygenase (15-LO) is known to play an important role in chronic pulmonary hypertension. Accumulating evidence for its down-stream participants in the vasoconstriction and remodeling processes of pulmonary arteries, while how hypoxia regulates 15-LO/15-hydroxyeicosatetraenoic acid (15-HETE) to mediate hypoxic pul...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2012.06.007
更新日期:2012-10-01 00:00:00
abstract::Single disseminated tumor cells (DTC) can be detected in the bone marrow (BM) from 20% to 60% of patients with various tumors including non-small cell lung cancer (NSCLC). Detection of DTC in the BM of NSCLC patients is associated with poor prognosis and may be responsible for metastatic relapse. However, the function...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2011.07.003
更新日期:2011-12-01 00:00:00
abstract::Suppressor of fused (SUFU) is an essential negative regulator of the mammalian Hedgehog (HH) signaling pathway and its loss is associated with cancer development. On a cellular level, endogenous SUFU can mainly be detected in the cytoplasm and the nucleus. However, immunostaining of pancreatic cancer specimen revealed...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2013.08.037
更新日期:2013-12-01 00:00:00
abstract::Sphingolipids were once regarded as inert structural components of cell membranes. Now these metabolites are generally believed to be important bioactive molecules that control a wide repertoire of cellular processes such as proliferation and survival of cells. Along with these ubiquitous cell functions observed in ma...
journal_title:Cellular signalling
pub_type: 杂志文章,评审
doi:10.1016/j.cellsig.2008.07.011
更新日期:2009-01-01 00:00:00
abstract::The dual-specificity mitogen-activated protein kinase (MAPK) phosphatase-1 (MKP-1) inactivates MAP kinases by dephosphorylation. Here we show that the proinflammatory cytokine interleukin (IL)-17A induces adult mouse primary cardiac fibroblast (CF) proliferation and migration via IL-17 receptor A//IL-17 receptor C-dep...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2011.10.010
更新日期:2012-02-01 00:00:00
abstract::Caveolin-1 (Cav-1) is a major structural protein of caveolae and plays an important role as a negative regulator of various signaling pathways such as the transforming growth factor-beta (TGF-beta)/smad pathway. In this study, we investigated the role of cav-1 on basal and TGF-beta1-induced expression of type I procol...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2008.02.020
更新日期:2008-07-01 00:00:00
abstract::Since its discovery in biopsies from breast cancer patients, the effect of corticotropin-releasing hormone (CRH) on carcinoma progression is still unclear. Transforming growth factorβ1 (TGFβ1) promotes Epithelial-Mesenchymal Transition (EMT) and induces Snail1 and Twist1 expressions. Loss of epithelial cadherin (E-cad...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2013.12.017
更新日期:2014-04-01 00:00:00
abstract::The peroxisome proliferator-activated receptor (PPAR) family was discovered from an orphan nuclear receptor approach, and thereafter, three subtypes were identified, namely PPARalpha, PPARbeta or PPARgamma and PPARgamma. The two former seem to regulate lipid homeostasis, whereas the latter is involved, among others, i...
journal_title:Cellular signalling
pub_type: 杂志文章,评审
doi:10.1016/s0898-6568(01)00281-9
更新日期:2002-07-01 00:00:00
abstract::Endoplasmic reticulum (ER) stress activated by perturbations in ER homeostasis induces the unfolded protein response (UPR) with chaperon Grp78 as the key activator of UPR signalling. The aim of UPR is to restore normal ER function; however prolonged or severe ER stress triggers apoptosis of damaged cells to ensure pro...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2010.04.008
更新日期:2010-09-01 00:00:00
abstract::Sphingosine-1-phosphate (S1P) is a bioactive sphingolipid metabolite that is known to mediate diverse cellular responses including cell growth, survival, and migration. Most of these effects have been attributed to its binding to a specific subfamily of G protein-coupled receptors (GPCR), namely S1P(1-5). Recent studi...
journal_title:Cellular signalling
pub_type: 杂志文章,评审
doi:10.1016/j.cellsig.2004.09.013
更新日期:2005-03-01 00:00:00
abstract::Growing evidence suggests that alterations of the inflammatory/immune system contribute to the pathogenesis of major depression and that inflammatory processes may influence the antidepressant treatment response. Depressed patients exhibit increased levels of inflammatory markers in both the periphery and brain, and h...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2015.04.006
更新日期:2015-08-01 00:00:00
abstract::We demonstrated previously an inhibitory effect of luminal leptin on glucose absorption in differentiated Caco-2 cells. Since this process is dependent on the Na(+) gradient established by the Na(+)/K(+)ATPase this work was undertaken to investigate if the ATPase is one of the hormone's targets. Fully differentiated C...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2014.12.004
更新日期:2015-03-01 00:00:00
abstract::Zeta-Chain Associated Protein Kinase 70 kDa (ZAP-70), a member of Syk family (non-receptor protein tyrosine kinase family), has an imperative function in the immune cell signaling in T cells. Its role in T-cell development has been established by the severe combined immune deficiency syndrome in ZAP-70 deficient human...
journal_title:Cellular signalling
pub_type: 杂志文章,评审
doi:10.1016/j.cellsig.2014.06.017
更新日期:2014-11-01 00:00:00
abstract::The glucose-regulated protein grp78 gene is rapidly transactivated in 9L rat brain tumour (RBT) cells treated with okadaic acid (OA) followed by heat shock (HS) (termed OA-->HS treatment). By Northern blotting analyses and transient transfection assays, we herein show that transactivation of grp78 by OA-->HS is abolis...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/s0898-6568(02)00055-4
更新日期:2003-01-01 00:00:00
abstract::The p75 neurotrophin receptor (p75(NTR)) plays a critical role in various neuronal and non-neuronal cell types by regulating cell survival, differentiation and proliferation. To evaluate the influence of p75(NTR) in breast cancer development, we have established and characterized breast cancer cells which stably overe...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2010.07.014
更新日期:2010-12-01 00:00:00
abstract::Signal transducers and activators of transcription 3 (STAT3) is reported to regulate cell proliferation, survival, and differentiation, and thus plays a central role in development and carcinogenesis. Accumulating evidence demonstrated the involvement of cellular Src (c-Src) tyrosine kinase in the activation of STAT3....
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2020.109762
更新日期:2020-11-01 00:00:00
abstract::The TAK1 plays a pivotal role in the innate immune response of Drosophila by controlling the activation of JNK and NF-kappaB. Activation of TAK1 in mammals is mediated by two TAK1-binding proteins, TAB1 and TAB2, but the role of the TAB proteins in the immune response of Drosophila has not yet been established. Here, ...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2005.08.020
更新日期:2006-07-01 00:00:00
abstract::SLAP (Src like adaptor protein) contains adjacent Src homology 3 (SH3) and Src homology 2 (SH2) domains closely related in sequence to that of cytoplasmic Src family tyrosine kinases. Expressed most abundantly in the immune system, SLAP function has been predominantly studied in the context of lymphocyte signaling, wh...
journal_title:Cellular signalling
pub_type: 杂志文章,评审
doi:10.1016/j.cellsig.2014.11.010
更新日期:2015-02-01 00:00:00
abstract::Non-small cell lung cancer is one of the most aggressive cancers as per as the mortality and occurrence is concerned. Paclitaxel based chemotherapeutic regimes are now used as an important option for the treatment of lung cancer. However, resistance of lung cancer cells to paclitaxel continues to be a major clinical p...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2014.11.023
更新日期:2015-02-01 00:00:00
abstract::Leptin, the adipocyte-secreted hormone that centrally regulates weight control, is known to function as an immunomodulatory regulator. We investigated the signaling pathway involved in IL-8 production caused by leptin in both rheumatoid arthritis synovial fibroblasts (RASF) and osteoarthritis synovial fibroblasts (OAS...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2008.04.003
更新日期:2008-08-01 00:00:00
abstract::Immune responses to pathogens are regulated by immune receptors containing either an immunoreceptor tyrosine-based activation motif (ITAM) or an immunoreceptor tyrosine-based inhibitory motif (ITIM). The important diarrheal pathogen enteropathogenic Escherichia coli (EPEC) require delivery and insertion of the bacteri...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2013.05.020
更新日期:2013-09-01 00:00:00
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::Tyrosine phosphorylation (Tyr-P) of focal adhesion kinase (FAK) regulates FAK activation. Phosphorylated FAK Tyr 397 binds Src family kinases (Src), which in turn directly phosphorylate FAK Tyr 576/577 to produce maximal FAK enzymatic activity. CB₁ cannabinoid receptors (CB₁) are abundantly expressed in the nervous sy...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2013.03.020
更新日期:2013-08-01 00:00:00
abstract::In this report, we examined the role of activin in the regulation of cell growth inhibition of human hepatocarcinoma cells. Using RNase protection assay for various cell cycle regulators and Western blotting experiments, we show that activin treatment of HepG2 cells leads to increased gene expression of the cyclin-dep...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2003.11.002
更新日期:2004-06-01 00:00:00
abstract::Analysis of the genomic sequences, cDNAs and expressed sequence tags (ESTs) in human and mouse for the 12 genes of the gamma subunits of the heterotrimeric G proteins has allowed us to identify the common versus unique elements of the organization and expression of the members of this important gene family. All of the...
journal_title:Cellular signalling
pub_type: 杂志文章
doi:10.1016/j.cellsig.2005.04.011
更新日期:2006-02-01 00:00:00