Abstract：
:Adrenomedullin is a secreted peptide hormone with multiple functions. Although a number of reports have indicated that adrenomedullin may be involved in tumor progression, its mechanism of action remains obscure. In this study, we have analysed the signal transduction pathway activated by adrenomedullin in human glioma cells. Our results revealed that adrenomedullin induced the phosphorylation of both c-Jun and JNK in glioblastoma cells. Silencing JNK expression with siRNA reversed the phosphorylation of c-Jun induced by adrenomedullin, indicating that JNK is responsible of c-Jun activation. In addition, electrophoretic mobility-shift assays showed that the increase in phosphorylation of c-Jun was associated with increased AP-1 DNA binding activity. Supershift assays and co-immunoprecipitation demonstrated that c-Jun and JunD are part of the AP-1 complex, indicating that activated c-Jun is dimerized with JunD in response to adrenomedullin. Furthermore, adrenomedullin was shown to promote cell transit beyond cell cycle phases with a concomittant increase in cyclin D1 protein level, suggesting that adrenomedullin effects cell proliferation through up-regulation of cyclin D1. The inhibition of JNK activation or the suppression of c-Jun or JunD expression with siRNA impaired the effects of adrenomedullin on cell proliferation and on cyclin D1. Taken together, these data demonstrate that activation of cJun/JNK pathway is involved in the growth regulatory activity of adrenomedullin in glioblastoma cells.
journal_name
Cell Signaljournal_title
Cellular signallingauthors
Ouafik L,Berenguer-Daize C,Berthois Ydoi
10.1016/j.cellsig.2009.01.001subject
Has Abstractpub_date
2009-04-01 00:00:00pages
597-608issue
4eissn
0898-6568issn
1873-3913pii
S0898-6568(09)00002-3journal_volume
21pub_type
杂志文章abstract：:Differential regulation of PLC-beta 1 and -beta 2 by the G-protein alpha-subunit, G alpha 11, and by G-protein beta gamma-subunits was studied utilizing recombinant PLC-beta 1 and -beta 2. Rat PLC-beta 1 and human PLC-beta 2 were purified after recombinant baculovirus-mediated expression in Sf9 cells. The catalytic pr...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/0898-6568(95)00039-r
更新日期：1995-09-01 00:00:00
abstract：:The small GTPase Rac1 plays a pivotal role in insulin-stimulated glucose uptake in skeletal muscle, which is mediated by GLUT4 translocation to the plasma membrane. However, regulatory mechanisms for Rac1 and its role in the signaling pathway composed of phosphoinositide 3-kinase and the serine/threonine kinase Akt re...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2013.02.023
更新日期：2013-06-01 00:00:00
abstract：:High-grade serous ovarian carcinoma (HGSOC) is the most lethal gynecologic cancer. Emerging evidence suggests that tumor-associated macrophages (TAMs) play an immunosuppressive role in the tumor microenvironment and promote tumor growth, angiogenesis, and metastasis in ovarian cancer. Therefore, targeting TAMs in pati...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2020.109539
更新日期：2020-04-01 00:00:00
abstract：:Staphylococcal alpha-toxin at subcytotoxic concentrations stimulated phosphatidylinositol turnover and arachidonic acid release in undifferentiated cultures of pheochromocytoma PC12 cells. Stimulation of phospholipase A2 but not C was dependent on extracellular calcium. Addition of staphylococcal alpha-toxin to PC12 c...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/0898-6568(89)90057-0
更新日期：1989-01-01 00:00:00
abstract：:Exposure of brown fat cells to phenylephrine, an agonist of alpha-1 adrenergic receptors, activates a phospholipase A2 which releases arachidonic acid. Since receptor activation of phospholipase A2 requires calcium, experiments were undertaken to define more precisely the role played by calcium in the regulation of en...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/0898-6568(89)90069-7
更新日期：1989-01-01 00:00:00
abstract：:Protein phosphatases play a key role in balancing the cellular responses to the transforming growth factor-β (TGFβ) signals. Several protein phosphatases have been attributed roles in the regulation of the TGFβ pathway. Among these, PPM1A is the only phosphatase reported to dephosphorylate SMAD2/3 in the nucleus. Howe...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2012.07.003
更新日期：2012-11-01 00:00:00
abstract：:S6K1, a critical downstream substrate of mTORC1, has been implicated in regulating protein synthesis and a variety of processes that impinge upon cell growth and proliferation. While the role of the cytoplasmic p70(S6K1) isoform in the regulation of translation has been intensively studied, the targets and function of...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2011.03.016
更新日期：2011-08-01 00:00:00
abstract：:TMPRSS4 is a novel type II transmembrane serine protease that is highly expressed in pancreatic, thyroid, colon, and other cancer tissues. Previously, we demonstrated that TMPRSS4 mediates tumor cell invasion, migration, and metastasis. However, the mechanisms by which TMPRSS4 contributes to invasion are not fully und...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2013.08.002
更新日期：2014-02-01 00:00:00
abstract：:Ketone bodies β-hydroxybutyrate (BHB) and acetoacetate are important metabolic substrates for energy production during prolonged fasting. However, BHB also has signaling functions. Through several metabolic pathways or processes, BHB modulates nutrient utilization and energy expenditure. These findings suggest that BH...
journal_title：Cellular signalling
pub_type： 杂志文章,评审
doi：10.1016/j.cellsig.2016.04.005
更新日期：2016-08-01 00:00:00
abstract：:Long-term amino acid starvation represents a form of metabolic stress which stimulates gene expression. Here we report that depriving HeLa cells for any one of a series of amino acids activates c-Jun N-terminal kinase-1 (JNK-1). In contrast, the other mitogen-activated protein kinases (MAPKs) ERK-1 and, to a lesser ex...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/s0898-6568(01)00159-0
更新日期：2001-06-01 00:00:00
abstract：:Peritoneal dialysis (PD) is a renal replacement therapy for patients with end-stage renal disease that is equivalent to hemodialysis with respect to adequacy, mortality, and other outcome parameters, yet providing superior quality-of-life measures and cost savings. However, long-term usage of the patient's peritoneal ...
journal_title：Cellular signalling
pub_type： 杂志文章,评审
doi：10.1016/j.cellsig.2020.109778
更新日期：2020-11-01 00:00:00
abstract：:Dissemination of cancer cells to distant organ sites is the leading cause of death due to treatment failure in different types of cancer. Mehlen and Puisieux have reviewed the importance of the development of inappropriate cell survival signaling for various steps in the metastatic process and have noted the particula...
journal_title：Cellular signalling
pub_type： 杂志文章,评审
doi：10.1016/j.cellsig.2013.03.025
更新日期：2013-08-01 00:00:00
abstract：:Bradykinin (BK) is released into the tear-film in ocular allergic patients. BK has been shown to exert mitogenic effects on several cell types. However, the mechanisms underlying its action on corneal keratocytes (CKs) were largely unknown. This study was to investigate the mitogenic effect of BK on rabbit CKs linked ...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2003.09.005
更新日期：2004-05-01 00:00:00
abstract：:Wnt3a activates proliferation of fibroblasts cells via activation of both extracellular signal-regulated kinase (ERK) and Wnt/beta-catenin signaling pathways. In this study, we show that the phosphatidyl inositol 3 kinases (PI3K)-Akt pathway is also involved in the Wnt3a-induced proliferation. Akt was activated within...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2006.08.008
更新日期：2007-03-01 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：:Expression of the human alpha 2A-adrenergic receptor gene is induced by cAMP. The present studies were designed to define potential cAMP-responsive enhancer elements (CREs) in the promoter region of this gene. Regions from the 5'-flanking sequences of the gene were placed in a promoterless vector with a chloramphenico...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/0898-6568(94)90062-0
更新日期：1994-01-01 00:00:00
abstract：:Calcineurin (CnA) is an important signalling molecule in skeletal muscle, in the promotion of differentiation, slow-fibre phenotype and possibly fibre hypertrophy. We found that stable expression of constitutively active CnA in muscle C2C12 cells strongly activated NF-kappaB, a key mediator of muscle wasting. NF-kappa...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/s0898-6568(02)00120-1
更新日期：2003-05-01 00:00:00
abstract：:The BRCA1 gene codes for a protein involved in the DNA double strand break (DDSB) repair. Alongside the dominant full-length splicing form of BRCA1, numerous endogenously expressed alternative splicing variants of unknown significance have been described in various tissues. Some of them retain the original BRCA1 readi...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2011.12.023
更新日期：2012-05-01 00:00:00
abstract：:Understanding how cells integrate signals from a variety of chemically diverse information-containing molecules into complex, orchestrated responses such as cell proliferation, differentiation and apoptosis is an overarching goal of cell biology. The ligand molecules that act upon cell surface receptors include those ...
journal_title：Cellular signalling
pub_type： 杂志文章,评审
doi：10.1016/s0898-6568(97)00194-0
更新日期：1998-09-01 00:00:00
abstract：:The N-formyl-L-methionyl-L-leucyl-L-phenylalanine (fMLP)-OMe (1) analogues for-Thp-Leu-Ain-OMe (2), for-Thp-Leu-Phe-OMe (3), for-Met-Leu-Ain-OMe (4), for-Met-Delta(z)Leu-Phe-OMe (5), for-Met-Lys-Phe-For-Met-Lys-Phe (6), for-Met-Leu-Pheol-COMe (7), and for-Nle-Leu-Phe-OMe (8) have been studied. Some of these have been ...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/s0898-6568(01)00140-1
更新日期：2001-04-01 00:00:00
abstract：:The possible involvement of zeta isozyme of protein kinase C (PKC zeta) in phorbol ester-induced signal transduction was investigated in mouse epidermal cells. Western blot analysis of RESOURCE Q column chromatography eluates obtained from 105,000 g supernatants and particulate fractions of epidermal cells was perform...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/0898-6568(95)00019-l
更新日期：1995-07-01 00:00:00
abstract：:The transcription factor Egr-1 is encoded by an immediate early response gene and has been shown to be a key regulator in the induction of apoptosis, mitogenesis and differentiation. It is rapidly induced by different stimuli including the glycoprotein hormone erythropoietin. In this report, we analyse the role of dif...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2008.06.013
更新日期：2008-10-01 00:00:00
abstract：:Circular RNAs (circRNAs) belong to a diverse class of stable RNAs expressed in all cell types. Their proposed functions include sponging of microRNAs (miRNAs), sequestration and trafficking of proteins, assembly of multimeric complexes, production of peptides, and regulation of transcription. Backsplicing due to RNA s...
journal_title：Cellular signalling
pub_type： 杂志文章,评审
doi：10.1016/j.cellsig.2020.109696
更新日期：2020-09-01 00:00:00
abstract：:Metformin, the most used drug for the treatment of diabetes type 2 patients, has been shown to have anti-cancer properties. In this study, we found that metformin induced apoptosis in Primary Effusion Lymphoma (PEL) cells, an aggressive B cell lymphoma associated with KSHV against which the conventional therapies usua...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2017.09.020
更新日期：2017-12-01 00:00:00
abstract：:The attachment of spindle microtubules to kinetochores is crucial for accurate segregation of chromosomes to daughter cells during mitosis. While a growing number of proteins involving this step are being identified, its molecular mechanisms are still not clear. Here we show that protein kinase C zeta (PKCzeta) is loc...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2006.05.017
更新日期：2006-12-01 00:00:00
abstract：:Clathrin-mediated endocytosis is a complex process regulated at many different levels. We showed previously that activation of the angiotensin type 1 receptor (AT1R), which belongs to the G protein-coupled receptor (GPCR) family, leads to c-Src-dependent tyrosine phosphorylation of beta2-adaptin, a subunit of the clat...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2008.09.013
更新日期：2009-01-01 00:00:00
abstract：:Cd(2+) exposure increases the risk of cancer in humans and animals. In this report, we have studied the effect of Cd(2+) on signal transduction and Ca(2+) mobilization in murine macrophages. At micromolar concentrations, Cd(2+) significantly increased cell division as judged by [3H]thymidine uptake and cell counts. Cd...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/s0898-6568(01)00268-6
更新日期：2002-04-01 00:00:00
abstract：:Metastasis is the leading cause of mortality in patients with highly invasive cancers and, as such, is a major problem for medicine. It has been increasingly recognized that cancer-related inflammation plays an important role in promoting invasion and the metastatic process in which cell motility and upregulation of p...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2018.03.010
更新日期：2018-07-01 00:00:00
abstract：:Pancreatic fibrosis, a key feature of chronic pancreatitis and pancreatic cancer, is mediated by activated pancreatic stellate cells (PSC). Connective tissue growth factor (CTGF) has been suggested to play a major role in fibrogenesis by enhancing PSC activation after binding to alpha5beta1 integrin. Here, we have foc...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2008.06.016
更新日期：2008-10-01 00:00:00
abstract：:Disabled-2 (DAB2) is an adapter protein that plays a key role in cell proliferation and differentiation. We reported here that DAB2 is expressed in various regions of rat central nervous system and is most abundant in the olfactory bulb. The up-regulation of DAB2 upon 5,7-dihydroxytryptamine-induced spinal cord lesion...
journal_title：Cellular signalling
pub_type： 杂志文章
doi：10.1016/j.cellsig.2007.01.019
更新日期：2007-06-01 00:00:00
