abstract：:T lymphocytes from aged donors function poorly, but the biochemical basis for the defect remains uncertain. We tested the hypothesis that T cells from old mice had a diminished ability to transmit extracellular signals into the cytoplasm, by measuring intracellular free calcium concentrations (Cai) in T cells stimulat...

journal_title：Journal of cellular physiology

authors： Miller RA,Jacobson B,Weil G,Simons ER

更新日期：1987-08-01 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

authors： Knauer DJ,Orlando RA,Rosenblatt D

更新日期：1987-08-01 00:00:00

abstract：:Human promyelocytic leukemia (HL-60) cells display a novel voltage-dependent outward current under voltage clamp. This current is present at low levels in the proliferative state and in granulocytes derived from HL-60 cells which were induced to differentiate with retinoic acid. It is elevated in macrophages derived f...

journal_title：Journal of cellular physiology

authors： Wieland SJ,Chou RH,Chen TA

更新日期：1987-08-01 00:00:00

abstract：:We examined the effects of thrombin on thromboxane generation by sheep neutrophils and lymphocytes in vitro. Physiological concentration of thrombin (50 nM) resulted in thromboxane B2 generation from both neutrophils and lymphocytes, which was comparable to that obtained with zymosan activated serum challenge of the c...

journal_title：Journal of cellular physiology

authors： Bizios R,Lai L,Fenton JW 2nd,Malik AB

更新日期：1987-08-01 00:00:00

abstract：:We report that cultured vascular endothelial cells release into the culture medium a vasoconstrictor peptide, a substance we call an endothelium-derived constricting factor (EDCF). Conditioned medium from cultured bovine aortic and pulmonary artery endothelial cells caused sustained, dose-dependent isometric constrict...

journal_title：Journal of cellular physiology

authors： O'Brien RF,Robbins RJ,McMurtry IF

更新日期：1987-08-01 00:00:00

abstract：:The actions of prostaglandins (PG) on cAMP in dispersed chief cells from guinea pig stomach were examined and compared to the actions of these agents on pepsinogen secretion. Maximal concentrations of A, B, or E prostaglandins caused a 2-5-fold increase in pepsinogen secretion and cellular cAMP. The relative order of ...

journal_title：Journal of cellular physiology

authors： Raufman JP,Cosowsky L

更新日期：1987-07-01 00:00:00

abstract：:The endogenous thiols (PSH, protein sulfhydryls; NPSH, nonprotein sulfhydryls; and GSH, glutathione) were measured in the 66 and 67 murine carcinoma cells growing under different physiological conditions in vitro (e.g., proliferation, P; nutrient-deprived quiescence QI; and QI cells stimulated by refeeding the monolay...

journal_title：Journal of cellular physiology

authors： Dethlefsen LA,Biaglow JE,Peck VM,Ridinger DN

更新日期：1987-07-01 00:00:00

abstract：:The effects of src oncogene expression on epidermal growth factor (EGF) receptors have been investigated in mouse 3T3 and rat-1 fibroblasts. Transformation of both cell types with src resulted in marked reductions in cellular EGF receptor levels, as assayed by either 125I-EGF binding or immunoprecipitation of receptor...

journal_title：Journal of cellular physiology

authors： Wasilenko WJ,Shawver LK,Weber MJ

更新日期：1987-06-01 00:00:00

abstract：:Heparin and related glycosaminoglycans are potent inhibitors of both in vivo and in vitro smooth muscle cell (SMC) proliferation. We have found that epidermal growth factor (EGF) reverses the antiproliferative effects of heparin. Other known SMC mitogens, including platelet-derived growth factor (PDGF), insulin-like g...

journal_title：Journal of cellular physiology

authors： Reilly CF,Fritze LM,Rosenberg RD

更新日期：1987-05-01 00:00:00

abstract：:BA10-IR transformed cells, obtained by treating Syrian hamster embryo fibroblasts (HEF) with 7-methylbenz(a)anthracene and cultivated for a long period, are highly tumorigenic and grow in suspension as aggregates (spheroids) (Levy et al., 1976). They also grow in attached form or as spheroids in serum-free (S-) synthe...

journal_title：Journal of cellular physiology

authors： Xin LW,Jullien P,Lawrence DA,Pironin M,Vigier P

更新日期：1987-05-01 00:00:00

abstract：:The snRNAs are abundant and stable components of the interphase nucleus. Aqueous and non-aqueous cell fractionation demonstrate that the snRNAs appear transiently in the cytoplasm shortly after transcription, before returning permanently to the interphase nucleus. In pulse label and chase experiments, the newly synthe...

journal_title：Journal of cellular physiology

authors： Zieve GW

更新日期：1987-05-01 00:00:00

abstract：:Cells from kidney proximal tubules have been successfully isolated, characterized, and cultured from male Fischer 344 rats between 150-400 g using a two-step collagenase perfusion. The cells undergo high levels of DNA synthesis and mitosis in both serum free media (with an without hormone supplementation) and media co...

journal_title：Journal of cellular physiology

authors： Rosenberg MR,Michalopoulos G

更新日期：1987-04-01 00:00:00

abstract：:Scatchard analysis of binding of 125I-basic fibroblast growth factor (FGF) to baby hamster kidney (BHK) cells revealed the presence of two binding sites: a high affinity site with KD of 20 pM and 80,000 sites per cell and a low affinity site with KD of about 2 nM and 600,000 sites per cell. The binding to the two site...

journal_title：Journal of cellular physiology

authors： Moscatelli D

更新日期：1987-04-01 00:00:00

abstract：:The toxicity of cationic fluorescent dye, rhodamine 123, towards a number of independently established cell lines from three different species, namely human, mouse, and Chinese hamster, has been examined. All of the cell lines from any one species that were examined were found to exhibit similar sensitivities towards ...

journal_title：Journal of cellular physiology

authors： Gupta RS,Dudani AK

更新日期：1987-03-01 00:00:00

abstract：:The SV40 transformed murine macrophage cell line, BAC1, proliferates in response to the colony stimulating factor, CSF-1 (Schwarzbaum et al., J. Immunol., 132:1158, 1984). In order to obtain a cell line suitable for biochemical and genetic studies of CSF-1 signal transduction, clones of BAC1 were established. Clones r...

journal_title：Journal of cellular physiology

authors： Morgan C,Pollard JW,Stanley ER

更新日期：1987-03-01 00:00:00

abstract：:A mouse mammary epithelial cell line, NMuMG, exhibits a low capacity to grow in semisolid medium as colonies and it is not tumorigenic in nude mice. In contrast, NMuMG cells which have been transformed by an activated c-Harvey ras proto-oncogene, NMuMG/rasH, or by the polyoma middle T-transforming gene, NMuMG/pyt, are...

journal_title：Journal of cellular physiology

authors： Salomon DS,Perroteau I,Kidwell WR,Tam J,Derynck R

更新日期：1987-03-01 00:00:00

abstract：:BP3T3, a clonal benzo(a)pyrene-transformed BALB/c-3T3 cell line, is conditionally responsive to growth factor stimulation. Density arrested cell populations deprived of growth factors by pretreatment with 0.5% platelet-poor plasma synthesized DNA both in response to ng/ml concentrations of PDGF, EGF, and somatomedin C...

journal_title：Journal of cellular physiology

authors： Whipple AP,Furlanetto RW,Scher CD

更新日期：1987-02-01 00:00:00

abstract：:Radioiodinated granulocyte-macrophage colony-stimulating factor (125I-GM-CSF) binds to specific receptors (molecular weight approximately 50,000 daltons) on the murine myelomonocytic leukemia, WEHI-3BD+. At 4 degrees C 125I-GM-CSF remains on the surface of the cells and can be eluted by washing the cells with acidifie...

journal_title：Journal of cellular physiology

authors： Walker F,Burgess AW

更新日期：1987-02-01 00:00:00

abstract：:Studies were conducted to explore hormonal and nutritional factors that might be involved in the regulation of retinol-binding protein (RBP) synthesis and secretion by the liver. The studies employed primary cultures of hepatocytes from normal rats. When cells were cultured in Dulbecco's modified Eagle's medium alone,...

journal_title：Journal of cellular physiology

authors： Dixon JL,Goodman DS

更新日期：1987-01-01 00:00:00

abstract：:Carbonic anhydrase (CAH) was localized in the mitochondria-rich cells (MRC) of 1-week-old salamander larvae gill epithelium, in both MRC and pavement cells of 6-week-old larvae, and in regenerated stems of previously amputated gills. CAH activity of the MRC was measured quantitatively using a microscope densitometric ...

journal_title：Journal of cellular physiology

authors： Lewinson D,Rosenberg M,Goldenberg S,Warburg MR

更新日期：1987-01-01 00:00:00

abstract：:The effects of exposure of cultured P388D1 cells to H2O2 on intracellular free calcium ([Ca++]i) was investigated utilizing the intracellular fluorescent calcium chelator "Quin 2." [Ca++]i rose from approximately 150 nM to greater than 2 microM over a time course that was strongly dependent on the concentration of H2O...

journal_title：Journal of cellular physiology

authors： Hyslop PA,Hinshaw DB,Schraufstätter IU,Sklar LA,Spragg RG,Cochrane CG

更新日期：1986-12-01 00:00:00

abstract：:The growth response of cultured rat intestinal epithelial (RIE-1) cells to epidermal growth factor (EGF) depends on the cell population density. EGF stimulated the proliferation of RIE-1 cells in dense cultures, but inhibited the proliferation of cells growing at low population densities. In contrast, insulin enhanced...

journal_title：Journal of cellular physiology

authors： Blay J,Brown KD

更新日期：1986-12-01 00:00:00

abstract：:Recently improved culture conditions for human adult arterial endothelial and smooth muscle cells from a wide variety of donors have been used to study the effects of lipoproteins on proliferation of both cell types in low serum culture medium. Optimal growth of endothelial and smooth muscle cells in an optimal nutrie...

journal_title：Journal of cellular physiology

authors： Chen JK,Hoshi H,McClure DB,McKeehan WL

更新日期：1986-11-01 00:00:00

abstract：:Temperature-sensitive mutants have revealed a region of the herpes simplex virus 1 genome that affects both the uptake of hexose and the synthesis of heat shock proteins. Other inducers of heat-shock proteins, namely heat shock itself and arsenite, likewise induce an increased uptake of hexose. The increased uptake, l...

journal_title：Journal of cellular physiology

authors： Warren AP,James MH,Menzies DE,Widnell CC,Whitaker-Dowling PA,Pasternak CA

更新日期：1986-09-01 00:00:00

abstract：:We have investigated the protein phosphorylation systems present in cultured bovine aortic and pulmonary artery endothelial cells. The cells contain cyclic AMP-dependent protein kinase, three calcium/calmodulin-dependent protein kinases, protein kinase C, and at least one tyrosine kinase. No cyclic GMP-dependent prote...

journal_title：Journal of cellular physiology

authors： Mackie K,Lai Y,Nairn AC,Greengard P,Pitt BR,Lazo JS

更新日期：1986-09-01 00:00:00

abstract：:Using S1 nuclease protection assays, we have examined the representation of cell cycle-dependent H4 histone RNAs in the nuclear matrix and nonmatrix nuclear fractions of human cells. Cytoplasmic and nuclear fractions were prepared from exponentially growing HeLa S3 cells by double detergent (sodium deoxycholate and NP...

journal_title：Journal of cellular physiology

authors： Bandyopadhyay R,Stein G,Stein J

更新日期：1986-08-01 00:00:00

abstract：:Cultured preadipose 3T3 cells are able to undergo a process of differentiation through which they are converted into adipose cells. Growth hormone induces this conversion in resting cultures but not in growing cultures. It was of interest to determine the period of cell sensitivity to the hormone and the timing of the...

journal_title：Journal of cellular physiology

authors： Morikawa M

更新日期：1986-08-01 00:00:00

abstract：:The effects of three purified colony-stimulating factors (CSFs) with different specificities for the granulocyte (G) and macrophage (M) lineages (G-CSF, CSF-1 and GM-CSF) were studied in a serum-free clonal assay system. The results were compared with those obtained in similar cultures containing fetal calf serum (FCS...

journal_title：Journal of cellular physiology

authors： Eliason JF

更新日期：1986-08-01 00:00:00

abstract：:The cell surface phenotype of pluripotent hemopoietic stem cells (CFU-S) and committed progenitors (CFU-C1, CFU-C2, BFU-E) of mouse bone marrow was analyzed with respect to their binding of wheat germ agglutinin (WGA) and two monoclonal antibodies, anti-GM-1.2 and anti-PGP-1. Stained cells were fractionated on the bas...

journal_title：Journal of cellular physiology

authors： Bauman JG,Wagemaker G,Visser JW

更新日期：1986-07-01 00:00:00

abstract：:The permeability of human platelets to glycerol was determined at 37 degrees C, 25 degrees C, and 0 degrees C from the rate of change of cell volume after abrupt addition of 0.5 mol/liter glycerol in phosphate-buffered saline. Intracellular water volume was measured employing both tritiated water and a photometric met...

journal_title：Journal of cellular physiology

authors： Armitage WJ

更新日期：1986-07-01 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

authors： Massaldi HA,Richieri GV,Mel HC

更新日期：1986-06-01 00:00:00

abstract：:A novel, serum albumin-binding glycoprotein of molecular weight (mw) 43,000 (43K protein) was initially purified from the culture medium of bovine aortic endothelial (BAE) cells (Sage, H., Johnson, C., and Bornstein, P., J. Biol. Chem. 259:3993-4007, 1984). Its secretion by normal mesenchymal cells and by transformed ...

journal_title：Journal of cellular physiology

authors： Sage H,Tupper J,Bramson R

更新日期：1986-06-01 00:00:00

abstract：:The possibility that one or both of the synthetic triamines, 1,3,6-triaminohexane and 1,4,7-triaminoheptane, could substitute for the naturally occurring polyamines in the growth of SV-3T3 cells was investigated. It was found that these triamines did lead to a restoration of growth in cells in which spermidine content...

journal_title：Journal of cellular physiology

authors： McGovern KA,Clark RS,Pegg AE

更新日期：1986-05-01 00:00:00

abstract：:The hexose transport system of undifferentiated L6 rat myoblasts was investigated. 2-Deoxy-D-glucose (2-DOG) and 2-deoxy-2-fluoro-D-glucose (2FG) were used as analogues to investigate the rate-limiting step of hexose uptake into the cell. Virtually all of the 2-DOG or 2FG taken up into the cell was found to be in the ...

journal_title：Journal of cellular physiology

authors： D'Amore T,Lo TC

更新日期：1986-04-01 00:00:00

abstract：:Respiratory tract epithelia are one type of tissue targeted by vitamin A. In this study the effects of vitamin A and its analogs (retinoids) on human bronchial epithelial (HBE) cells have been investigated in a serum-free hormone-supplemented medium. This serum-free medium, which was developed for the long-term cultiv...

journal_title：Journal of cellular physiology

authors： Wu R,Wu MM

更新日期：1986-04-01 00:00:00

abstract：:Norepinephrine (NE) produced a dose-dependent inhibition of 125I-epidermal growth factor (EGF) binding to adult rat hepatocytes in primary culture. This effect was maximal after 1 hr of incubation with NE and could be blocked by the presence of an alpha 1-specific adrenergic receptor antagonist. The inhibition of bind...

journal_title：Journal of cellular physiology

authors： Cruise JL,Cotecchia S,Michalopoulos G

更新日期：1986-04-01 00:00:00

abstract：:The release of vasodilating substances from the vascular endothelium has been postulated to depend on a rise in the level of intracellular free calcium (Cai++). We measured Cai++ in intact monolayers of calf endothelial cells, grown in culture, that were loaded with the fluorescent calcium indicator quin 2. Fluorescen...

journal_title：Journal of cellular physiology

authors： Lückhoff A,Busse R

更新日期：1986-03-01 00:00:00

abstract：:Bovine pulmonary artery endothelial cells in culture were used to assess the influence of oxygen tension on proteoglycan synthesis. Cells exposed to 3% O2 (hypoxia) for 72 h and then labeled with [35S]sulfate for 5 h accumulated significantly less [35S]proteoglycan in medium than cells exposed to 20% O2 (control). Thi...

journal_title：Journal of cellular physiology

authors： Humphries DE,Lee SL,Fanburg BL,Silbert JE

更新日期：1986-02-01 00:00:00

abstract：:We have measured endogenous and induced rates of 70-kD, 89-kD, and 110-kD heat shock proteins in highly pure G1-, S-, or G2-M phase fractions of Chinese hamster fibroblasts (CHO) separated by fluorescence-activated cell sorting (FACS). Relative rates of synthesis of all three polypeptides as measured by two-dimensiona...

journal_title：Journal of cellular physiology

authors： Rice G,Laszlo A,Li G,Gray J,Dewey W

更新日期：1986-02-01 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

authors： Tacchetti C,Zurzolo C,Monticelli A,Nitsch L

更新日期：1986-01-01 00:00:00