Abstract:
:We report here that heptanol (3.5 mM) induces in vitro a rapid formation of smooth endoplasmic reticulum aggregates (SERA) within isolated islets of Langerhans. SERA appeared after only 15 min of exposure to the alkanol and increased in number during the first 30 min of incubation. At that time, SERA represented 2% and 6% of the volume of B- and non-B-cells, respectively. Removal of heptanol resulted in the rapid disappearance of SERA, whereas reintroduction of the alkanol rapidly induced these structures again. SERA formation was seen in different types of endocrine and nonendocrine islet cells. In the insulin-producing B-cells, SERA formation was not modified by conditions known to alter the secretory activity and the microtubular-microfilament network or to inhibit protein synthesis. By contrast, SERA formation was inhibited by low temperature and by conditions depleting the energy sources of the cells. Similar observations were made in the presence of either octanol (1 mM) or nonanol (1 mM) but not of shorter chain alkanols, alkanes, oxidative derivates of either heptanol or octanol, and of other unrelated lipid-soluble compounds. Incubations in the presence of long-chain alkanols provide, therefore, a unique model to study in vitro the formation and disposal of smooth endoplasmic reticulum, as well as a system in which rapid membrane biogenesis is amenable to direct experimental testing.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Knodel S,Meda P,Orci Ldoi
10.1002/jcp.1041330114subject
Has Abstractpub_date
1987-10-01 00:00:00pages
111-8issue
1eissn
0021-9541issn
1097-4652journal_volume
133pub_type
杂志文章abstract::We have investigated the role of the plasminogen activation cascade in skeletal muscle differentiation. Migrating, undifferentiated myoblasts express urokinase plasminogen activator (uPA) and its cell surface receptor (uPAR). Consequently, uPA is localized predominantly to the cell surface. Preventing uPA from associa...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199705)171:2<217::AID-JCP1
更新日期:1997-05-01 00:00:00
abstract::Recently, microRNAs (miRNAs) have been demonstrated to participate in many physiological and biological processes, especially by acting as circulating biomarkers or modulators in cell differentiation. Therefore, the aim of the current study was to clarify whether microRNA-320a (miR-320a) regulates the proliferation, m...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26842
更新日期:2018-01-01 00:00:00
abstract::Five-week-old female mice supplemented with estradiol and progesterone are able to respond to epidermal growth factor (EGF) and EGF-like growth factors (alpha-transforming growth factor [alpha-TGF] and crude mammary-derived growth factor) with local lobuloalveolar development when these growth factors are directly int...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041320324
更新日期:1987-09-01 00:00:00
abstract::We have investigated the kinetics of fluid-phase endocytosis and diacytosis in confluent monolayers of human fibroblasts by comparing the behavior of three markers that have been previously used to study this process: [14C]sucrose, 125I-labeled polyvinylpyrrolidone ([125I]PVP), and Lucifer Yellow. Three distinct kinet...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041360302
更新日期:1988-09-01 00:00:00
abstract::Detailed information regarding the synthesis rates of individual protein components is important in understanding the assembly and dynamics of the cytoskeletal matrix of eukaryotic cells. As an approach to this topic, the dual isotope technique of Clark and Zak (J. Biol. Chem., 256:4863-4870, 1981), was employed to me...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041430315
更新日期:1990-06-01 00:00:00
abstract::Indian hedgehog (Ihh) is produced by growth plate pre-hypertrophic chondrocytes, and is an important regulator of endochondral ossification. However, little is known about the regulation of Ihh in chondrocytes. We have examined the role of integrins and mitogen-activated protein (MAP) kinases in Ihh mRNA regulation in...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20208
更新日期:2005-04-01 00:00:00
abstract::Primary porcine choroid plexus epithelial cells cultivated in chemically defined medium maintain their epithelial characteristics and form confluent monolayers. They produce a fluid the composition of which resembles cerebrospinal fluid. The present study demonstrates constitutive secretion of large amounts of beta-tr...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199611)169:2<235::AID-JCP2
更新日期:1996-11-01 00:00:00
abstract::Nicotinamide adenine dinucleotide phosphate oxidase 4 (NOX4) is a subtype of the NOX family, which is mainly expressed in the pulmonary vasculature and pulmonary endothelial cells in the respiratory system. NOX4 has unique characteristics, and is a constitutively active enzyme that primarily produces hydrogen peroxide...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.30005
更新日期:2021-03-01 00:00:00
abstract::Cancer-associated fibroblasts (CAFs) in the tumor microenvironment play major roles in supporting cancer progression. A previous report showed that SPIN90 downregulation is correlated with CAF activation and that SPIN90-deficient CAFs promote breast cancer progression. However, the mechanisms that mediate cancer-strom...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.29326
更新日期:2020-05-01 00:00:00
abstract::It was shown previously that mouse bone marrow cells transformed by simian virus 40 (SV40) show a reversible cell density-dependent phenotypic transition between the nonmacrophage (rapidly growing) and the macrophage (stationary) states; cells in low-density cultures are in the growing phase, express SV40 T antigen st...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041160307
更新日期:1983-09-01 00:00:00
abstract::The plasma level of the regulatory metabolite adenosine increases during the activation of coagulation and inflammation. Here we investigated the effect of adenosine on modulation of thrombin-mediated proinflammatory responses in HUVECs. We found that adenosine inhibits the barrier-disruptive effect of thrombin in HUV...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.24568
更新日期:2014-09-01 00:00:00
abstract::TRB3 (a mammalian homolog of Drosophila) is emerging as an important player in the regulation of insulin signaling. TRB3 can directly bind to Ser/Thr protein kinase Akt, the major downstream kinase of insulin signaling. Conversely, physical exercise has been linked to improved glucose homeostasis and enhanced insulin ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21833
更新日期:2009-10-01 00:00:00
abstract::1,7-Bis(4-hydroxyphenyl)-1,4-heptadien-3-one (EB30) is a diarylheptanoid-like compound isolated from Viscum coloratum. This curcumin analog exhibits significant cytotoxic activity against HeLa, SGC-7901, and MCF-7 cells. However, little is known about the anticancer effects and mechanisms of EB30 in human lung cancer....
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27364
更新日期:2019-05-01 00:00:00
abstract::Pyroptosis is a form of necrotic and inflammatory programmed cell death, which could be characterized by cell swelling, pore formation on plasma membranes, and release of proinflammatory cytokines (IL-1β and IL-18). The process of pyroptosis presents as dual effects: protecting multicellular organisms from microbial i...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.29268
更新日期:2020-04-01 00:00:00
abstract::The human immunodeficiency virus type 1 (HIV-1) Rev protein facilitates the nuclear export of viral mRNA containing the Rev response element (RRE). Although several host proteins co-operating with Rev in viral RNA export have been reported, little is known about the innate host defense factors that Rev overcomes to me...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.21305
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:In this study, we aimed to explore the effects of GAS5 single-nucleotide polymorphisms (SNPs) on GAS5 expression. And the signaling pathways underlying the function of GAS5 during the pathogenesis of prostate cancer (PC) were clarified. MATERIALS AND METHODS:Patients with PC were recruited and grouped accor...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27561
更新日期:2019-06-01 00:00:00
abstract::Experiments were conducted to determine the extent and variability of collagen degradation in human fetal lung fibroblasts. Cells were incubated with [14C]proline, and degradation was measured by determining the hydroxy[14C]proline in a low molecular weight fraction relative to total hydroxy[14C]proline. Average (basa...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041210119
更新日期:1984-10-01 00:00:00
abstract::Dose-response curves for the inhibition of heterogeneous nuclear RNA (hnRNA) synthesis in HeLa cells by 5,6-dichloro-1-beta-D-ribofuranosylbenzimidazole (DRB; 5-100 microM; 30 min) are biphasic and indicate the existence of two subpopulations of hnRNA molecules, one highly sensitive and the other completely resistant,...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041160106
更新日期:1983-07-01 00:00:00
abstract::The effects of artificial cryptorchidism and its surgical reversal on spermatogenesis were examined in germ cell mutant, S1/+ and wild type, +/+, mice. In cryptorchid testes no difference was found between S1/+ and +/+ mice in the number of undifferentiated type A spermatogonia. The activity of type A spermatogonia in...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041050115
更新日期:1980-10-01 00:00:00
abstract::Osteosarcomas are bone tumors that frequently metastasize to the lung. Aberrant expression of the transcription factor, runt-related transcription factor 2 (RUNX2), is a key pathological feature in osteosarcoma and associated with loss of p53 and miR-34 expression. Elevated RUNX2 may transcriptionally activate genes m...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.28046
更新日期:2019-08-01 00:00:00
abstract::Rat pheochromocytoma PC12 cells respond to the binding of nerve growth factor (NGF) and basic fibroblast growth factor (bFGF) by extending neurites in a manner resembling sympathetic neurons. This response requires cell attachment to an appropriate substratum (Fujii et al., J. Neurosci., 2:1157, 1982); attachment fact...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041380117
更新日期:1989-01-01 00:00:00
abstract::Four temperature-sensitive (ts) mutants of rat 3Y1 fibroblasts, representing independent complementation groups, cease to proliferate predominantly with a 2n DNA content, at the restrictive temperature (39.8 degrees C) (temperature arrest) or at the permissive temperature (33.8 degrees C) at a confluent cell density (...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041230310
更新日期:1985-06-01 00:00:00
abstract::Diabetic nephropathy (DN) is a kind of microvascular complications of diabetes. Long noncoding RNAs (lnRNAs) can participate in the development of various diseases, including DN. However, the function of lncRNA NEAT1 is unclear. In our present study, we reported that NEAT1 was significantly increased in streptozotocin...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.27959
更新日期:2019-08-01 00:00:00
abstract::Protein-DNA interactions within the promoter of a cell cycle-regulated human H4 histone gene were examined by binding of 5'-end-labeled DNA segments to Western blots of nuclear protein fractions. Specific protein interactions were observed with DNA segments located between -500 bp and -1,070 bp upstream of the ATG ini...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041390214
更新日期:1989-05-01 00:00:00
abstract::Lactoferrin, a single chain cationic glycoprotein, present in the secondary granules of neutrophils, acts as a negative feedback regulator of myelopoiesis. Specific receptors for lactoferrin were detected on the surface of different hematopoietic cell types. The influence of lactoferrin on cell growth in culture has b...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041530306
更新日期:1992-12-01 00:00:00
abstract::Protease nexin-I (PN-I, Mr approximately 43,000) is representative of a newly described class of cell-secreted protease inhibitors. PN-I has been purified to apparent homogeneity, partially sequenced, and monospecific antibodies have been raised against it. PN-I is a potent inhibitor of urokinase, thrombin, plasmin, a...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041320217
更新日期:1987-08-01 00:00:00
abstract::A previously described chondrocyte alkaline phosphatase induction factor (CAP-IF) for chicken epiphyseal growth plate chondrocytes has been purified to SDS-PAGE homogeneity from fetal bovine serum by ammonium sulfate precipitation and by dye-ligand affinity (Affi-Gel Blue and Reactive Green-19 agarose) and hydroxyapat...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041490208
更新日期:1991-11-01 00:00:00
abstract::The transcriptional factors implicated in the expression of the intermediate filament protein nestin in cardiomyocytes during embryogenesis remain undefined. In the heart of 9,5-10,5 day embryonic mice, nestin staining was detected in atrial and ventricular cardiomyocytes and a subpopulation co-expressed Tbx5. At late...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.26165
更新日期:2018-04-01 00:00:00
abstract::Insulin-like growth factor-I (IGF-I) promotes bone formation by stimulating proliferation and differentiation of osteoblasts. Bone sialoprotein (BSP), is thought to function in the initial mineralization of bone, is selectively expressed by differentiated osteoblast. To determine the molecular mechanism of IGF-I regul...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20664
更新日期:2006-08-01 00:00:00
abstract::A proliferation inducing ligand (APRIL or TALL-2 and TRDL-1) was first discovered as a cytokine over-expressed in many transformed cells and with the capacity to stimulate proliferation. APRIL was shown to bind two different receptors of the TNF receptor superfamily: B cell maturation antigen (BCMA) and transmembrane ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
doi:10.1002/jcp.21561
更新日期:2009-01-01 00:00:00