abstract：:The C3H/10T 1/2 embryo cell line, which is nontumorigenic when inoculated subcutaneously in saline suspension, produces tumors when implanted subcutaneously attached to 1 X 5 X 10 mm plastic plates. Under these in vivo conditions there is direct selection for "spontaneous" transformants that have undergone the specifi...

journal_title：Journal of cellular physiology

authors： Paranjpe M,del Ande Eaton S,Boone CW

更新日期：1978-07-01 00:00:00

abstract：:Human embryonic neutrophils (N) in the liver (from 8.5 mm crown-rump length) are alkaline phosphatase (AP) negative during the first trimester of pregnancy. Early bone marrow granulocytes (from eleventh to sixteenth weeks of gestation) behave similarly. Only a small percentage of slightly AP positive cells could be fo...

journal_title：Journal of cellular physiology

authors： Kelemen E,Gulya E,Vass K

更新日期：1978-06-01 00:00:00

abstract：:Adsorption of Sendai virus at high multiplicity (500-1,000 HAU/10(6) cells) to HeLa cells grown in monolayers causes immediate changes in the ion barrier of the cell membrane, as well as changes in the morphology of the virus-treated cells. Within minutes of adsorption the cells begin to lose potassium and an extensiv...

journal_title：Journal of cellular physiology

authors： Spiegelstein PF,Haimsohn M,Gitelman J,Kohn A

更新日期：1978-05-01 00:00:00

abstract：:The phytohemagglutinin (PHA)-stimulated human lymphocytes demonstrated trace or no activity (dihydro) folate acid reductase using three methods including a radioassay, but demonstrated ample activity of thymidylate synthetase. This was true regardless of the day of harvest, (first through seventh) of the stimulated ly...

journal_title：Journal of cellular physiology

authors： Haurani FI,Kardinal CG,Biermann WA

更新日期：1978-04-01 00:00:00

abstract：:Serum stimulation of quiescent 3T3 cells returns the cells to a proliferative state. Changes in Ca content, transport and distribution during the transition through G1 and S phase have been investigated following serum stimulation of these cells. 45 Ca exchange data indicate at least two kinetically defined cellular c...

journal_title：Journal of cellular physiology

authors： Tupper JT,Del Rosso M,Hazelton B,Zorgniotti F

更新日期：1978-04-01 00:00:00

abstract：:Fibroblastic and epithelioid clones have been isolated from the normal rat kidney line, NRK. These clones were studied for their ability to bind epidermal growth factor (EGF), susceptibility to transformation by mouse sarcoma virus (MSV), and alteration in EGF binding upon sarcoma virus transformation. The epithelioid...

journal_title：Journal of cellular physiology

authors： de Larco JE,Todaro GJ

更新日期：1978-03-01 00:00:00

abstract：:The level of poly A+ RNA in growing cultures of human diploid fibroblasts is 1.8-fold times greater than in resting cultures. The level of functional ribosomes in growing cultures is 2.8 times that in resting cultures. Since transit times are similar in both types of cells, it can be concluded that the rate of protein...

journal_title：Journal of cellular physiology

authors： Meedel TH,Levine EM

更新日期：1978-02-01 00:00:00

abstract：:We report the isolation of a bovine pituitary growth factor (MGF) for a rat mammary carcinoma cell line, 64-24, which was isolated from a highly hormone-dependent mammary tumor. The MGF has been partially purified by a series of Diaflo ultrafiltration membrane sievings, isoelectric focusing and Sephadex columns. The M...

journal_title：Journal of cellular physiology

authors： Kano-Sueoka T,Campbell GR,Gerber M

更新日期：1977-12-01 00:00:00

abstract：:Human fibroblasts derived from newborn foreskin and designated CF-3 were assayed for heat labile glucose-6-phosphate dehydrogenase (G6PD) when they had grown to confluency, as well as when they were arrested in an essentially nonmitotic state. Under both culture conditions there was an increase in heat labile G6PD (up...

journal_title：Journal of cellular physiology

authors： Duncan MR,Dell'orco RT,Guthrie PL

更新日期：1977-10-01 00:00:00

abstract：:Short term, carrier mediated transport of D-glucose, L-leucine and L-lysine by guinea pig peritoneal macrophages was characterized. Analysis of the amino acid transport demonstrated two-limbed double reciprocal plots suggesting two transport systems for each amino acid. The low concentration limb of the curves establi...

journal_title：Journal of cellular physiology

authors： Straus DC,Imhoff JG,Bonventre PF

更新日期：1977-10-01 00:00:00

abstract：:Human cell lines derived from a melanoma and a colon carcinoma, and cultures of human melanocytes and intestinal epithelial cells, as well as a mouse mesenchymal non-neoplastic cell line and a malignant subline of the same have been quantitatively studied in tissue culture for their sensitivity to thymidine. All three...

journal_title：Journal of cellular physiology

authors： Lee SS,Giovanella BC,Stehlin JS Jr

更新日期：1977-09-01 00:00:00

abstract：:The extent to which autolytic microbial enzymes are involved in the fate of microorganisms ingested by phagocytes has not been determined. It is known, however, that activation of degradative enzymes occurs during certain microbicidal events. We examined the possible role of the pneumococcal autolytic enzyme (an N-ace...

journal_title：Journal of cellular physiology

authors： Tomasz A,Beckerdite S,McDonnell M,Elsbach P

更新日期：1977-08-01 00:00:00

abstract：:Mice of the C3H/HeJ strain exhibit low inflammatory and immunological responses to certain bacterial lipopolysaccharide (LPS) preparations. Lymphocytes from C3H/HeJ mice also show defective LPS-induced mitogenesis. We tested the colony stimulating activity (CSA) response of C3H/HeJ mice. As controls we used mice of th...

journal_title：Journal of cellular physiology

authors： Russo M,Lutton JD

更新日期：1977-08-01 00:00:00

abstract：:Cultures of HeLa cells, strains S3G (HeLa65) and S3K (HeLa71) were grown in plastic dishes until firmly attached and were then treated with sonic dispersions of Rosenthal's phospholipase inhibitor. A rapid increase in alkaline phosphatase activity occurred following this treatment in the S3G strain (low inducible alka...

journal_title：Journal of cellular physiology

authors： Melnykovych G,Lopez IC

更新日期：1977-07-01 00:00:00

abstract：:In quiescent human fibroblasts stimulated to proliferate by fresh medium plus 15% serum, no changes were seen in the incorporation of 3H tryptophan into the protein of nuclear ribonucleoprotein during the first three hours following re-feeding. This was in contrast to non-histone chromosomal proteins where the incorpo...

journal_title：Journal of cellular physiology

authors： Augenlicht LH,Lipkin M

更新日期：1977-07-01 00:00:00

abstract：:Minute virus of mice (MVM), a non-defective parvovirus, has been shown to infect cultures of non-pluripotent differentiated teratocarcinoma-derived cells, but pluripotent (and "nullipotent") embryonal carcinoma cells derived from the same teratocarcinoma resist MVN infection. Somatic cell hybrids between an embryonal ...

journal_title：Journal of cellular physiology

authors： Miller RA,Ward DC,Ruddle FH

更新日期：1977-06-01 00:00:00

abstract：:Measurements made on contraction latencies in Spirostomun suggest that mechanical stimulation causes contractions to be initiated by the release of small amounts of calcium from a store tightly coupled to the contractile apparatus. Contraction to electrical stimulation appears to result from the gross electrophoretic ...

journal_title：Journal of cellular physiology

authors： Hamilton TC,Osborn D

更新日期：1977-06-01 00:00:00

abstract：:The application of the phenomenon of premature chromosome condensation for cell cycle analysis in HeLa and CHO cells has been examined. Random populations of HeLa and CHO cells pulse labelled with H3-TdR were separately fused with mitotic HeLa cells using U.V. inactivated Sendai virus. The resulting prematurely conden...

journal_title：Journal of cellular physiology

authors： Rao PN,Wilson B,Puck TT

更新日期：1977-04-01 00:00:00

abstract：:Cell division, neurite formation and acetylcholinesterase activity were examined in a clone (NBA2) of mouse neuroblastoma cells maintained for up to 120 hours in medium with pH values between 6.6 and 8.0. Growth rate decreased as pH was reduced from 7.8 to 6.6. Generation time at pH 7.4 was 25 hours, while the rate of...

journal_title：Journal of cellular physiology

authors： Bear MP,Schneider FH

更新日期：1977-04-01 00:00:00

abstract：:A method, based on the differing capacities of cells to adhere to a column of polyester fibres, has been described for separating human bone marrow cells into a nonadherent and an adherent fraction. The effect of this cell separation procedure on colony formation by erythroid progenitor cells was investigated. In cont...

journal_title：Journal of cellular physiology

authors： Aye MT

更新日期：1977-04-01 00:00:00

abstract：:The development of spike potential mechanisms during cell differentiation was studied in chick myotubes formed in vitro from trypsin-dissociated myoblasts. The spike potential and its rate of rise were measured in myotubes from 4-14 day old cultures. A depolarizing current pulse was delivered to evoke the spike potent...

journal_title：Journal of cellular physiology

authors： Kano M,Yamamoto M

更新日期：1977-03-01 00:00:00

abstract：:Polyoma transformed hamster cells (PyBHK) and SV40 transformed mouse cells (SV3T3) were transferred in culture using crystalline trypsin followed by neutralisation with soybean trypsin inhibitor. Such cells were able to proliferate freely in defined medium without any serum supplement and without any intervening perio...

journal_title：Journal of cellular physiology

authors： Bush H,Shodell M

更新日期：1977-03-01 00:00:00

abstract：:Balb/C3T3 cells entered the quiescent Go state following serum deprivation. On addition of fresh serum, more than 95% of the culture resumed growth, but with asynchronous kinetics. If hydroxyurea were added just before the first cells reached S phase, at at least 90% of the cells accumulated at the Gl/S border over th...

journal_title：Journal of cellular physiology

authors： Dooley DC,Ozer HL

更新日期：1977-02-01 00:00:00

abstract：:Ehrlich ascites tumor cells from the plateau phase of growth were transplanted into new hosts, pulse-labeled with tritiated thymidine and blocked with repeated injections of vinblastine. When unlabeled cells were analyzed for their cellular DNA content utilizing a cytophotometric technique it was found that in relatio...

journal_title：Journal of cellular physiology

authors： Andersson G

更新日期：1977-02-01 00:00:00

abstract：:A quantitative assay for intercellular adhesion, which is a modification of the collecting aggregate assay (Roth et al., '71) is described. The use of mechanically dissociated single cells labeled with 3H-leucine, and of a gyratory shaker increased considerably the efficiency of cell collection. With chick embryo neur...

journal_title：Journal of cellular physiology

authors： Pessac B,Alliot F,Girard A

更新日期：1977-01-01 00:00:00

abstract：:Heparan sulfate from the surface of a variety of mouse cells at different cell densities was examined by ion-exchange chromatography. The results of this analysis show that: (1) The heparan sulfate from new isolates of Swiss 3T3 cells transformed by SV40 virus (a DNA tumor virus) elutes from DEAE-cellulose at a lower ...

journal_title：Journal of cellular physiology

authors： Underhill CB,Keller JM

更新日期：1977-01-01 00:00:00

abstract：:The carrier of uridine transport in hamster cells in culture is highly susceptible to the inhibitory effect of probes like S-benzylated derivatives of mercaptopurine nucleosides. The interaction between the probes and the carrier is competitive and reversible and it takes place at a site different from the substrate b...

journal_title：Journal of cellular physiology

authors： Eilam Y,Carbantchik I

更新日期：1976-12-01 00:00:00

abstract：:We can distinguish two classes of membrane transport changes in cultured cells: (a) growth-rate contingent changes are those which occur in coordination with the onset of density-dependent inhibition of growth; (b) transformation-specific changes are those which occur when cells become transformed, and which can be de...

journal_title：Journal of cellular physiology

authors： Weber MJ,Hale AH,Yau TM,Buckman T,Johnson M,Brady TM,LaRossa DD

更新日期：1976-12-01 00:00:00

abstract：:Membrane vesicles derived principally from the plasma membrane and endoplasmic reticulum of mouse 3T3 cells transformed by Simian virus 40 take up alpha-aminoisobutyric acid (AIB) and phosphate (Pi). When NaCl is added simultaneously with AIB or Pi, uptake rises two- to three-times above the equilibrium to accumulate ...

journal_title：Journal of cellular physiology

authors： Nilsen-Hamilton M,Hamilton RT

更新日期：1976-12-01 00:00:00

abstract：:Binding of concanavalin A to isolated thymocyte membrane vesicles occurs through (a) numerous (approximately 6 x 106/cell equivalent) low-affinity sites (Ka = 1.3 x 105M-1) anf (b) fewer (approximately 0.4 x 106/cell equipment) specific receptors (Ka = 6.8 x 106 M-1) defined as 55,000 D glycoprotein and its multimers....

journal_title：Journal of cellular physiology

authors： Wallach DF,Schmidt-Ullrich R

更新日期：1976-12-01 00:00:00

abstract：:The components of unidirectional K influx and efflux have been investigated in the 3T3 cell and the SV40 transformed 3T3 cell in expontntial and stationary growth phase. Over the cell densities used for transport experiments the 3T3 cell goes from exponential growth to density dependent inhibition of growth (4 X 10(4)...

journal_title：Journal of cellular physiology

authors： Spaggiare S,Wallach MJ,Tupper JT

更新日期：1976-11-01 00:00:00

abstract：:Entry of certain free amino acids (alpha aminoisobutyric acid (AIB), alanine and proline), but not of leucine into rat thymic lymphocytes increased progressively when the cells were incubated in amino acid deficient medium. Actinomycin D, cycloheximide, or a high concentration of AIB abolished the time-related increas...

journal_title：Journal of cellular physiology

authors： Peck WA,Rockwell LH,Lichtman MA

更新日期：1976-11-01 00:00:00

abstract：:Regulation of lipid synthesis from acetate in human diploid fibroblast cultures has been studied at various passage levels and at different stages of cell growth. When cultures were transferred to lipid free medium, a stimulation of [14C]acetate incorporation into lipid occurred within three to six hours after removal...

journal_title：Journal of cellular physiology

authors： Howard BV,Howard WJ,Kefalides NA

更新日期：1976-10-01 00:00:00

abstract：:Cytoplasmic poly-A containing RNA, synthesized by cultured chick embryo cells, was examined during growth in 5-bromodeoxyuridine. The kinetics of 3H-adenosine incorporation into this species of RNA, when compared to the rest of the cytoplasmic RNA, and to control cells, indicates that the rate of synthesis of this RNA...

journal_title：Journal of cellular physiology

authors： Pawlowski PJ

更新日期：1976-09-01 00:00:00

abstract：:The concentration of ATP in cysts of the brine shrimp, Artemia salina, has been studied as a function of cyst hydration. Cysts dried over CaSO4 contain 0.02 gH2O/g cysts and 0.54 +/- 0.05 (S.D.) mumoles of ATP/g dried cysts. Addition of water up to 0.05 g/g cysts produced no net change in the level of ATP during incub...

journal_title：Journal of cellular physiology

authors： Clegg JS,Cavagnaro J

更新日期：1976-06-01 00:00:00

abstract：:Phosphoribosylpyrophosphate synthetase activity was determined in Friend virus-inducted erythroleukemic cells in culture, stimulated to differentiate in the presence of dimethylsulfoxide. The activity of phosphoribosylpyrophosphate synthetase did not decrease in cells which had acquired the specialized function of hem...

journal_title：Journal of cellular physiology

authors： Reem GH,Friend C

更新日期：1976-06-01 00:00:00

abstract：:Cellular growth has been found to be directly related to the amount of sodium pumping activity in mouse lymphoblasts (L5178-Y) cultured in varying concentrations of the cardiac glycoside, ouabain. No short-term adaptation (within one generation) occured; i.e., neither growth rate nor (Na+ + K+)-ATPase activity increas...

journal_title：Journal of cellular physiology

authors： Shank BB,Smith NE

更新日期：1976-03-01 00:00:00

abstract：:In vitro bioluminescence components of the dinoflagellates Gonyaulax polyedra, G. tamarensis, Dissodinium lunual, and Pyrocystis noctiluca were studied. The luciferases and luciferins of the four species cross-react in all combinations. All of these species possess high-molecular weight luciferases (200,000-400,000 da...

journal_title：Journal of cellular physiology

authors： Schmitter RE,Njus D,Sulzman FM,Gooch VD,Hastings JW

更新日期：1976-01-01 00:00:00

abstract：:An analysis of which component of lipopolysaccharides (LPS), the lipid or the polysaccharide (PS), is active in stimulating the murine granulopoietic system has been performed. LPS with different structures, isolated from different mutant strains of Salmonella and chemical degradation products of lipopolysaccharides h...

journal_title：Journal of cellular physiology

authors： Apte RN,Galanos C,Pluznik DH

更新日期：1976-01-01 00:00:00

abstract：:The Giemsa banding pattern of the chromosomes has been analyzed in a line of transformed golden hamster cells, revertant and re-revertant cells and their tumors. The transformed and re-revertant cells were malignant in vivo and had gained an additional chromosome 5(7). Revertants with a suppression of malignancy lost ...

journal_title：Journal of cellular physiology

authors： Bloch-Shtacher N,Sachs L

更新日期：1976-01-01 00:00:00