abstract：:Adipose differentiation of 3T3-F442A cells in surface cultures depends on adipogenic factor present in the culture medium. We found that after stimulation with adipogenic serum, 3T3-F442A cell underwent a burst of DNA synthesis before adipose conversion was manifested by an augmented lipogenic enzyme activity. In diff...

journal_title：Journal of cellular physiology

authors： Kuri-Harcuch W,Marsch-Moreno M

更新日期：1983-01-01 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

authors： Laskin JD,Piccinini L,Engelhardt DL,Weinstein IB

更新日期：1982-12-01 00:00:00

abstract：:The intracellular Ca2+ content of nontransformed Balb/c3T3 cells is two to three times higher than that of a spontaneously transformed derivative. Depriving either cell type of extracellular Mg2+ causes a 2- to 3-fold increase in their Ca2+ content over a 24-hr period. Restoring Mg2+ to the medium decreases the Ca2+ c...

journal_title：Journal of cellular physiology

authors： Vidair C,Rubin H

更新日期：1982-12-01 00:00:00

abstract：:Adhesion of calf lens epithelial cells to lens capsule, their natural basement membrane was found to be considerably more rapid than either to plastic or to type I or type IV collagen coated surfaces. No polarity of the basement membrane was observed as the cells were able to attach to either side of the anterior or p...

journal_title：Journal of cellular physiology

authors： Cammarata PR,Spiro RG

更新日期：1982-11-01 00:00:00

abstract：:Retinoic acid reduces the growth rate of mouse S91 melanoma cells in culture and increases the proportion of cells in the G1 phase of the cell cycle. Because of the integral role protein synthesis has been shown to play in growth control we studied the effect of retinoic acid on the protein synthesis machinery with a ...

journal_title：Journal of cellular physiology

authors： Lotan R,Fischer I,Meromsky L,Moldave K

更新日期：1982-10-01 00:00:00

abstract：:Nerve growth factor (NGF) is required for the growth and development of sensory and sympathetic neurons. Incubation of chick dorsal root ganglionic cells without NGF resulted in a decrease of active (Na+,K+-pump-mediated) K+ influx over a period of several hours. Addition of NGF to NGF-deprived cells caused 1) a retur...

journal_title：Journal of cellular physiology

authors： Boonstra J,Skaper SD,Varon S

更新日期：1982-10-01 00:00:00

abstract：:The regulation of hexose transport under glucose-starvation conditions was studied in cultured human skin fibroblasts. Glucose starvation enhanced the transport of 2-DG and 3-0-methyl-D-glucose (3-OMG) but not of L-glucose. Glucose-starvation enhanced transport was inhibited by cytochalasin B (10 microM). The starvati...

journal_title：Journal of cellular physiology

authors： Germinario RJ,Rockman H,Oliveira M,Manuel S,Taylor M

更新日期：1982-09-01 00:00:00

abstract：:Using a serum-free system, we have investigated the influence of human fibronectin (HFN) and selected growth factors (GF) on the attachment and growth of normal human keratinocytes in vitro. Single-cell suspensions of keratinocytes from near-confluent primary plates, plated on 5-10 microgram/cm2 HFN, showed approximat...

journal_title：Journal of cellular physiology

authors： Gilchrest BA,Calhoun JK,Maciag T

更新日期：1982-08-01 00:00:00

abstract：:Two transport systems for neutral amino acids have been characterised in LLC-PK, cells. The first, which transports alanine in a sodium-dependent manner, also mediates alanine exchange and is perferentially inhibited by serine, cysteine, and alpha-amino-n-butyric acid. This system resembles the ASC system in Ehrlich a...

journal_title：Journal of cellular physiology

authors： Sepúlveda FV,Pearson JD

更新日期：1982-08-01 00:00:00

abstract：:Intermediate subviral particles (ISVP) derived from reovirus represent a simple model system for the switch-on of transcriptase function. In such particles the endogenous transcriptase is present in a switched-off form, one step removed from the switched-on state. Switch-on of transcriptase function is an active proce...

journal_title：Journal of cellular physiology

authors： Borsa J,Sargent MD,Ewing DD,Einspenner M

更新日期：1982-07-01 00:00:00

abstract：:Rous sarcoma virus (RSV)-infected chicken embryo cells were used to study the effect of viral transformation on the hormone-stimulated synthesis of cyclic AMP. Transformation by RSV greatly increased the cells' ability to synthesize and accumulate cyclic AMP in response to the beta-adrenergic agonist isoproterenol as ...

journal_title：Journal of cellular physiology

authors： Howard RF,Friis RR,Sheppard JR,Glossmann H

更新日期：1982-06-01 00:00:00

abstract：:Isolated hamster intestinal epithelial cells can be separated by velocity sedimentationion on 2-10% Ficoll gradients into three subpopulations of cells which differ in morphology, biochemistry, physiology, and membrane components. These subpopulations are not pure but are enriched in a single cell type to the extent t...

journal_title：Journal of cellular physiology

authors： Carter JH,Poretz RD,Eichholz A

更新日期：1982-04-01 00:00:00

abstract：:Lymphocytes depleted of ATP by incubation in iodoacetate (IAA) and nitrogen (N2) lost K and gained Na. Isotopic Na exchange showed a fast fraction and a slower exponential fraction, the latter conventionally assumed to reflect surface membrane properties. The gain of cell Na was not accounted for by a decrease in 22Na...

journal_title：Journal of cellular physiology

authors： Negendank W,Shaller C

更新日期：1982-03-01 00:00:00

abstract：:The effect of the glucocorticoids, insulin, and glucose concentration on glycogen deposition in adult rat liver parenchymal cells maintained in a chemically defined, serum-free medium has been studied. Increasing the medium concentration of glucose from 5.6 mM to 30.6 mM in the absence of hormones increased cellular g...

journal_title：Journal of cellular physiology

authors： Weber CA,Kletzien RF

更新日期：1982-03-01 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

authors： Okuda A,Kimura G

更新日期：1982-03-01 00:00:00

abstract：:Confluent cultures of adult bovine aortic endothelial (ABAE), corneal endothelial (BCE), and fetal bovine heart endothelial (FBHE) cells form a monolayer of highly flattened, closely apposed, and nonoverlapping cells. In ABAE and BCE cultures, this is associated with a 50-fold decrease in the rate of DNA sythesis and ...

journal_title：Journal of cellular physiology

authors： Savion N,Vlodavsky I,Greenburg G,Gospodarowicz D

更新日期：1982-02-01 00:00:00

abstract：:Treatment of CEM-C7 cells with glucocorticoids produces a 2.5-fold increase in the activity of the enzyme glutamine synthetase (GS). This increase is specific for steroids with glucocorticoid activity adn occurs over a range of steroid concentrations consistent with a receptor-mediated mechanism. Half-maximal and maxi...

journal_title：Journal of cellular physiology

authors： Harmon JM,Thompson EB

更新日期：1982-02-01 00:00:00

abstract：:[3H]Ouabain specifically bound at sublethal concentrations to Na,K-ATPase on the surface of HeLa cells is taken up (internalized) by the cells at a rate of three membrane equivalents of labeled sites per generation. Immediately following a pulse label with the glycoside, codistribution of radioactivity with the surfac...

journal_title：Journal of cellular physiology

authors： Cook JS,Tate EH,Shaffer C

更新日期：1982-01-01 00:00:00

abstract：:We have partially purified a mitogenic factor, termed colony stimulating factor, which is secreted from a human T lymphocytic cell line, and which stimulates in vitro formation of colonies of macrophages and granulocytes by human bone marrow cells. Colony stimulating factor (CSF) produced by cells grown in serum suppl...

journal_title：Journal of cellular physiology

authors： Frölich M

更新日期：1981-12-01 00:00:00

abstract：:In order to promote cell attachment, fibronectin must first undergo activation by a suitable substrate. In this study, 52 materials have been surveyed for their ability a) to bind fibronectin, b) to activate the cell-adhesive property of fibronectin, and c) to support the growth of cells. Many plastics, polysaccharide...

journal_title：Journal of cellular physiology

authors： Klebe RJ,Bentley KL,Schoen RC

更新日期：1981-12-01 00:00:00

abstract：:A number of different organs and tissues from untreated or endotoxin-injected mice were surveyed for their ability to produce conditioned medium that could induce differentiation of the myelomonocytic leukemic cell line WEHI-3B. All organs were able to do this but were much more effective from endotoxin-injected anima...

journal_title：Journal of cellular physiology

authors： Nicola NA,Metcalf D

更新日期：1981-11-01 00:00:00

abstract：:Mouse fetuses at 15th and 18th day of gestation, and newborns aging 0, 5, 10, and 15 days were injected i.p. with 131 I-albumin (RISA). The degree of incorporation by liver and the intraparticulate hydrolysis of RISA in 27,000g x 10 min. particles increased after birth. By this time, changes in subcellular distributio...

journal_title：Journal of cellular physiology

authors： Bertini F,Mayorga L,Gonzalez M

更新日期：1981-11-01 00:00:00

abstract：:The process of induction of human malignant T-lymphoblastic cell line MOLT-3 by the phorbol ester 12-O-tetradecanoylphorbol-13-acetate (TPA) was examined. It was found that the induction process by TPA, which included increase in cells with receptors to sheep red blood cells (E--rosette positive--E+) and decrease in t...

journal_title：Journal of cellular physiology

authors： Nagasawa K,Howatson A,Mak TW

更新日期：1981-10-01 00:00:00

abstract：:Studies have been carried out to determine the effect of bacterial infection on CSF production, CFU-C activation, and bacterial clearance by mature granulocytes in mice infected with Escherichia coli. These studies have shown that immediately after bacterial infection (5 minutes), serum colony-stimulating factor (CSF)...

journal_title：Journal of cellular physiology

authors： Hartmann DW,Entringer MA,Robinson WA,Vasil ML,Drebing CJ,Morton NJ,True L

更新日期：1981-10-01 00:00:00

abstract：:The hypothesis that, in the case of clonal or low-density cultures, cells which do not readily proliferate are those that do not produce an extracellular matrix (ECM), while those that proliferate actively are cells that have retained their ability to produce it, has been tested using low-density vascular endothelial ...

journal_title：Journal of cellular physiology

authors： Gospodarowicz D,Lui GM

更新日期：1981-10-01 00:00:00

abstract：:The transport of L-alanine in human diploid fibroblasts was investigated. Transport measurements were performed on subcultures between the third and eighth passages with subconfluent cells growing on glass coverslips. Kinetic analysis of approximate initial rates of transport at substrate concentrations from 0.05 to 1...

journal_title：Journal of cellular physiology

authors： Feneant M,Moatti N,Lemonnier F,Lemonnier A

更新日期：1981-10-01 00:00:00

abstract：:The presence and origin of mast-cell precursors fixed in the skin tissue of mice were investigated. Giant granules of beige (C57BL/6-bh'/bg', Chediak-Higashi syndrome) mice were used to distinguish different populations of mast cells. Pieces of the skin were grafted from the intact WBB6F1 (WB X C57BL/6)F1-+/+ mice int...

journal_title：Journal of cellular physiology

authors： Matsuda H,Kitamura Y,Sonoda T,Imori T

更新日期：1981-09-01 00:00:00

abstract：:Arterial smooth muscle cells undergo marked biochemical and morphological changes upon culturing. We have studied the time course of these changes in smooth muscle cells isolated from normal rabbit aortas by enzymic digestion and then maintained in Dulbecco's modified Eagle's medium with or without 10% rabbit serum. S...

journal_title：Journal of cellular physiology

authors： Yau-Young AO,Shio H,Fowler S

更新日期：1981-09-01 00:00:00

abstract：:Inhibition of the gap-filling, polymerizing step of excision repair by 1-beta-D-arabinofuranosylcytosine (ara-C) after irradiation with ultraviolet light in human diploid fibroblasts resulted in the formation of persistent DNA strand breaks in G1, G2, and plateau phase cells, but not in S phase cells. Addition of hydr...

journal_title：Journal of cellular physiology

authors： Cleaver JE

更新日期：1981-08-01 00:00:00

abstract：:The glucose analogues, 3-O-methyl-D-glucose and 2-deoxy-D-glucose, have been used to characterize glucose transport and its regulation by serum and growth factors in monolayer cultures of granulosa cells obtained from bovine ovaries. Uptake of 3-O-methylglucose was shown to be independent of the Na+-gradient, independ...

journal_title：Journal of cellular physiology

authors： Allen WR,Nilsen-Hamilton M,Hamilton RT

更新日期：1981-07-01 00:00:00

abstract：:To determine if Chinese Hamster Ovary (CHO) cells in culture are able to metabolize steroids, CHO cells were incubated in defined medium with [14C]pregnenolone. As shown, [14C]pregnenolone is metabolized to progesterone and other delta 53 beta steroids; this steroidogenic response is appreciably enhanced upon exposure...

journal_title：Journal of cellular physiology

authors： Evain D,Anderson WB,Saez MJ

更新日期：1981-07-01 00:00:00

abstract：:Chick embryo fibroblasts were maintained at confluency for up to 35 days in medium containing 0.5% or 0.75% fetal bovine serum or 2.5% or 5.0% horse serum. At weekly intervals cells were subcultured and serially propagated in medium containing 10% FBS until their replicative lifespans were completed. The results showe...

journal_title：Journal of cellular physiology

authors： Nielsen PJ,Ryan JM

更新日期：1981-06-01 00:00:00

abstract：:Vole cells transformed by avian sarcoma virus carrying the src gene lose their fibroblastic morphology, the organized cytoskeletal system of the normal fibroblastic cell, the typical fibronectin deposit around the cell membrane, and the ability to shut off multiplication when suspended in liquid medium. All of these t...

journal_title：Journal of cellular physiology

authors： Puck TT,Erikson RL,Meek WD,Nielson SE

更新日期：1981-06-01 00:00:00

abstract：:Conditions have been established under which the antizyme of ornithine decarboxylase (E.C. 4.1.1.17, L-ornithine carboxy-lyase, ODC) a non-competitive protein inhibitor of ODC, can be detected in cells in response to as little as 10(-7) M putrescine. The maintenance of intracellular antizyme activity depends upon the ...

journal_title：Journal of cellular physiology

authors： Heller JS,Canellakis ES

更新日期：1981-05-01 00:00:00

abstract：:Methylglyoxal bis-(guanylhydrazone) (mGBG) blocked the stimulation of DNA synthesis in quiescent, density-inhibited BALB/c-3T3 cells treated with platelet-derived growth factor (PDGF) and platelet-poor plasma (PPP). Competence formation produced by a transient exposure to PDGF was not effected by mGBG. In contrast, mG...

journal_title：Journal of cellular physiology

authors： Wharton W,Van Wyk JJ,Pledger WJ

更新日期：1981-04-01 00:00:00

abstract：:Parathyroid hormone (PTH) greatly increased the level of adenosine 3', 5' cyclic monophosphate (cAMP) in rabbit costal chondrocytes in culture 2 minutes after its addition. PTH, as well as N6 O2' dibutyryl adenosine 3', 5' cyclic monophosphate (DBcAMP) and 8 Bromo adenosine 3', 5' cyclic monophosphate (8 Br-cAMP) indu...

journal_title：Journal of cellular physiology

authors： Takigawa M,Takano T,Suzuki F

更新日期：1981-02-01 00:00:00

abstract：:We present evidence that extends our earlier preliminary report on the stimulatory effect of saline washes on confluent cells in culture (Lacey et al., '77). That work suggested that an inhibitory substance was being removed by the washes. The present work suggests that the inhibitor is in the 10,000-30,000 MW range, ...

journal_title：Journal of cellular physiology

authors： Strobel-Stevens JD,Lacey JC Jr

更新日期：1981-02-01 00:00:00

abstract：:We describe the isolation and characterization of a Chinese hamster ovary cell line selected for resistance to N-carbamoyloxyurea. Using the mammalian cell permeabilization assay developed in our laboratory, a detailed analysis of the target enzyme, ribonucleotide reductase (EC 1.17.4.1), was carried out. Both drug-re...

journal_title：Journal of cellular physiology

authors： Hards RG,Wright JA

更新日期：1981-02-01 00:00:00

abstract：:Previous studies from our laboratory have shown that Chinese hamster V79 cells mutated to high level resistance to amphotericin B have a lower cellular level of cholesterol, the target molecule for the polyene antibiotic. Two amphotericin B-resistant (AMBR) mutants were each hybridized to their parental amphotericin B...

journal_title：Journal of cellular physiology

authors： Hidaka K,Akiyama SI,Kuwano M

更新日期：1981-01-01 00:00:00

abstract：:For malignant cells cultured from a human astrocytoma, electrophysiological characteristics of the plasma membrane included specific resistivity of 446.82 +/- 279.5 ohm . cm2, specific capacitance of 0.758 +/- 0.52 microfarads/cm2, time constant 0.318 +/- 0.10 msec. The resting membrane potential averaged--14.07 +/- 7...

journal_title：Journal of cellular physiology

authors： Black PM,Kornblith PL

更新日期：1980-12-01 00:00:00