Abstract:
:Signal transduction of fibroblast growth factor (FGF) receptors is known to involve tyrosine phosphorylation of several substrates, including Grb2, phospholipase C-gamma, and phosphatidylinositol 3-kinase, whereas the role of G-proteins in FGF receptor signaling is controversial. In the present study we investigated the role of G-proteins in FGF receptor signaling in rat pancreatic acini. Immunological analysis revealed the presence of FGF receptor and phospholipase C-gamma1 in rat pancreatic acini. Both basic fibroblast growth factor (FGF-2) and guanosine 5'-(gamma-O-thio)triphosphate (GTPgammaS) caused an increase in inositol 1,4,5-trisphosphate (1,4,5-IP3) production and amylase release. Combined stimulation of the acini with GTPgammaS and FGF-2 led to a decrease of these responses as compared to the effect of the single substances. When pancreatic acini were preincubated with FGF-2 (1 nM) or vehicle (water) ADP-ribosylation of the alpha-subunit of Gi-type G-proteins by pertussis toxin was reduced in membranes prepared from FGF-2 pretreated acini as compared to control acini, suggesting functional interaction of FGF receptors with Gi-proteins. Pretreatment of acini with pertussis toxin which inhibits Gi-type G-proteins abolished the inhibitory effect of GTPgammaS on FGF-induced 1,4,5-IP3 production and amylase release, whereas the stimulatory effects of FGF-2 and GTPgammaS on these parameters remained unchanged. In conclusion, these results show communication of FGF receptors and Gi-type G-proteins and that Gi-type G-proteins exert an inhibitory influence on FGF-induced activation of phosphoinositide-specific phospholipase C in pancreatic acinar cells.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Piiper A,Stryjek-Kaminska D,Gebhardt R,Zeuzem Sdoi
10.1002/(SICI)1097-4652(199604)167:1<52::AID-JCP6>subject
Has Abstractpub_date
1996-04-01 00:00:00pages
52-9issue
1eissn
0021-9541issn
1097-4652pii
10.1002/(SICI)1097-4652(199604)167:1<52::AID-JCP6>journal_volume
167pub_type
杂志文章abstract::Normal rat kidney [NRK] cells grown in the presence of epidermal growth factor (EGF) or platelet-derived growth factor (PDGF) have a normal phenotype and undergo density-dependent growth inhibition, whereas in the presence of multiple growth factors, density arrest is lost and the cells become phenotypically transform...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041540223
更新日期:1993-02-01 00:00:00
abstract::Simian Virus 40 (SV40), a monkey polyomavirus, was administered to human populations by early anti-poliomylitis vaccines contaminated by this small DNA tumor virus. Data on SV40 infection in humans remain controversial. Elderly subjects represent an interesting cohort to investigate, because they were not immunized wi...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.25405
更新日期:2017-01-01 00:00:00
abstract::Effects of interstitial fluid flow on osteoblasts were investigated. Intracellular cyclic adenosine monophosphate (cAMP) levels were monitored in cultured osteoblasts subjected to shear rates ranging from 10 to 3,500 sec-1. Cyclic AMP levels were significantly increased at all shear rates from 1 pmole/mg protein to 10...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041430113
更新日期:1990-04-01 00:00:00
abstract::The level of 1,25(OH)2D3 receptors in cultured mouse osteoblast-like (OB) cells is modulated by the rate of cell proliferation. We have studied two 1,25(OH)2D3-induced bioresponses to ascertain whether the changes in receptor levels during growth in culture alter cell responsiveness. Nuclear receptor levels were high ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041260104
更新日期:1986-01-01 00:00:00
abstract::The involvement of Ras-GTPases in the development of renal fibrosis has been addressed in the last decade. We have previously shown that H- and N-Ras isoforms participate in the regulation of fibrosis. Herein, we assessed the role of K-Ras in cellular processes involved in the development of fibrosis: proliferation, m...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.25340
更新日期:2016-10-01 00:00:00
abstract::Tobacco smoking is associated with many diseases. Addiction is of the most notorious tobacco-related syndrome and is mainly attributed to nicotine. In this study, we employed Caenorhabditis elegans as a biological model to systemically investigate the effect of chronic nicotine exposure on microRNA (miRNA) expression ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24419
更新日期:2014-01-01 00:00:00
abstract::The carboxyl-terminal domain (CTD) of the largest subunit of mammalian RNA polymerase II (RNAP II) consists of 52 repeats of a consensus heptapeptide and is subject to phosphorylation and dephosphorylation events during each round of transcription. RNAP II activity is regulated during the cell cycle and cell cycle-dep...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.10058
更新日期:2002-02-01 00:00:00
abstract::Rat 3Y1 cells arrested at early S by hydroxyurea traversed the remainder of S and G2 and completed mitosis after removal of the drug, irrespective of the absence of serum from the culture medium. When cells were deprived of serum for a period between early S and mitosis after removal of hydroxyurea, the cells delayed ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041100308
更新日期:1982-03-01 00:00:00
abstract::Glycochenodeoxycholate (GCDA) is closely associated with carcinogenesis and chemoresistance of hepatocellular carcinoma (HCC). Signal transducer and activator of transcription 3 (STAT3), a transcription factor, is involved in various human tumors. Whether GCDA induces chemoresistance through STAT3 and the mechanism of...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.29159
更新日期:2020-03-01 00:00:00
abstract::In culture, B16/C3 murine melanoma cells grown in the presence of serum undergo melanogenesis at a specific time after plating. At this time, melanin is synthesized intracellularly and then secreted into the extracellular culture fluid. We have found that melanin secretion is dependent on the presence of serum in the ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041130318
更新日期:1982-12-01 00:00:00
abstract::Rat thyroid follicles in both the normal and the inverted configuration have been cultured in suspension. It has been found that normal follicles (i.e., those having a structural organization similar to the follicles in vivo) express most functional properties of the thyroid gland. They trap iodide, synthesize, secret...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041260113
更新日期:1986-01-01 00:00:00
abstract::Ganoderma lucidum immunomodulatory protein (FIP-glu) is an active ingredient with potential immunoregulatory functions. The study was conducted to explore the immunomodulatory activities of recombinant FIP-glu (rFIP-glu) and its possible mechanism in macrophage RAW264.7 cells. In vitro assays of biological activity in...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28901
更新日期:2019-12-01 00:00:00
abstract::Islet cell transplantation, as a treatment of type 1 diabetes, has a lot of complexity such as allograft rejections and an insufficient number of donors. The liver can be used as a replacement for endogenous insulin production. Hepatocytes can inherently respond to glucose levels and secrete proteins. Utilization of m...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28352
更新日期:2019-08-01 00:00:00
abstract::Transforming growth factor beta (TGF beta) treatment of rat osteoblast-rich calvarial cells or of the clonal osteogenic sarcoma cells, UMR 106-01, resulted in dose-dependent inhibition of plasminogen activator (PA) activity, and increased production of 3.2 kb mRNA and protein for PA inhibitor -1 (PAI-1). Although tiss...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041490106
更新日期:1991-10-01 00:00:00
abstract::Pin1 is a peptidyl prolyl cis-trans isomerase that specifically binds to the phosphoserine-proline or phosphothreonine-proline motifs of numerous proteins. Previously, we reported that Pin1 deficiency resulted in defects in osteoblast differentiation during early bone development. In this study, we found that adult Pi...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24787
更新日期:2015-03-01 00:00:00
abstract::Previously, we found that hypoxia can deeply affect the production of cytokines in human peripheral mononuclear cells (PBMC). Here, we demonstrated that the cycle progression of hypoxic PBMC, cultured in the presence or not of a specific T cell activator such as phytohaemagglutinin (PHA), was delayed when compared wit...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199912)181:3<448::AID-JCP8
更新日期:1999-12-01 00:00:00
abstract::Alkaptonuria (AKU) is an ultra-rare genetic disease, in which the accumulation of a toxic metabolite, homogentisic acid (HGA) leads to the systemic development of ochronotic aggregates. These aggregates cause severe complications mainly at the level of joints with extensive degradation of the articular cartilage. Prim...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.25761
更新日期:2017-11-01 00:00:00
abstract::Sleep-disordered breathing with recurrent apnea (periodic cessation of breathing) results in chronic intermittent hypoxia (IH), which leads to cardiovascular and respiratory pathology. Molecular mechanisms underlying IH-evoked cardio-respiratory co-morbidities have not been delineated. Mice with heterozygous deficienc...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21537
更新日期:2008-12-01 00:00:00
abstract::The present work reports the beneficial effects of using a microplatform on the development of mouse single blastomeres (SBs) to the blastocyst stage. Development of blastocysts from SBs separated from two- and four-cell stage embryos (two- and four-cell SBs) can provide a valuable supply both for couples who use fert...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26879
更新日期:2018-12-01 00:00:00
abstract::Osteoporosis can result from intestinal inflammation, as is seen with inflammatory bowel disease. Probiotics, microorganisms that provide a health benefit to the host when ingested in adequate amounts, can have anti-inflammatory properties and are currently being examined to treat inflammatory bowel disease. Here, we ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24340
更新日期:2013-08-01 00:00:00
abstract::The coupled action of the Na(+)/H(+) exchanger NHE1 and the HCO3(-)/Cl(-) exchanger AE2 constitutes the principal mechanism for acute correction of decreased cell volume in mammalian somatic cells, while, when acting separately, they regulate intracellular pH. It was previously found that AE2 becomes inactivated durin...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24370
更新日期:2013-10-01 00:00:00
abstract::The highly conserved homeodomains and HMG domains are components of a large number of proteins that play a role in the transcriptional regulation of gene expression during embryogenesis. Both the HMG domain and the homeodomain serve as interfaces for factor interactions with DNA, as well as with other proteins, and it...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/1097-4652(2001)9999:9999<000::AID-JCP1046>
更新日期:2001-03-01 00:00:00
abstract::The influence upon different cellular and humoral parameters of hemopoiesis of three structurally unrelated, highly purified bacterial cell-wall components (BCWC) was investigated. The spleens of C57BL/6 mice assayed 6 days after the injection of either lipid A or outer-membrane lipoportein, but not murein, showed a m...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041050116
更新日期:1980-10-01 00:00:00
abstract::The transmural heterogeneity of the contractility in ventricular muscle has not been well-studied. Here, we investigated the calcium transient and sarcomere contraction/relaxation in the endocardial (Endo) and epicardial (Epi) myocytes. Endo and Epi myocytes were isolated from C57/BL6 mice by Langendorff perfusion. Ca...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26512
更新日期:2018-08-01 00:00:00
abstract::Controlled-release drug delivery systems are promising platforms in medicine. Among various types of material in drug delivery, hydrogels are interesting ones. They are water-soluble and tissue compatible polymers with a high capacity to carry and release drugs in a controllable manner. In this study, we introduce the...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.30148
更新日期:2020-11-05 00:00:00
abstract::Cytoskeleton not only controls cell morphology but also regulates cell growth, migration, differentiation, and gene expression, events which are fundamental to embryogenesis, carcinogenesis, and wound healing. We have recently reported that reorganization of cytoskeleton induces expression of mRNA for transforming gro...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199708)172:2<192::AID-JCP6
更新日期:1997-08-01 00:00:00
abstract::In a recent publication, Heubusch et al. (J Cell. Physiol, 122:266-272, 1985) reported changes of erythrocyte volume measured by the Coulter counter technique over a wide range of osmolalities (160 to 3000 m0sm). Their results showed a partially hindered, nonlinear response, in contrast to classical observations made ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041270314
更新日期:1986-06-01 00:00:00
abstract::32D cells are murine myeloid cells that grow indefinitely in Interleukin-3 (IL-3). In these cells, the type 1 insulin-like growth factor (IGF-I) and granulocytic-colony stimulating factor (G-CSF) induce differentiation to granulocytes. 32D cells do not express insulin receptor substrate-1 (IRS-1) or IRS-2, docking pro...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20613
更新日期:2006-06-01 00:00:00
abstract::Growing evidence has shown that pulsed electromagnetic fields (PEMF) can modulate bone metabolism in vivo and regulate the activities of osteoblasts and osteoclasts in vitro. Osteocytes, accounting for 95% of bone cells, act as the major mechanosensors in bone for transducing external mechanical signals and producing ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27734
更新日期:2019-07-01 00:00:00
abstract::Endothelial cells play a wide variety of critical roles in the control of vascular function. Indeed, since the early 1980s, the accumulating knowledge of the endothelial cell structure as well as of the functional properties of the endothelial cells shifted their role from a passive membrane or barrier to a complex ti...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.10333
更新日期:2003-09-01 00:00:00