abstract：:BHK fibroblasts can be growth arrested by incubation in low serum (0.1%) medium. Growth is initiated by incubating cells in high serum (10%) medium. We have found that if the quiescent cells in low serum medium are incubated with insulin, the G0 to S transit time is decreased by two to six hours when serum (10%) is ad...

journal_title：Journal of cellular physiology

authors： Kletzien RF,Day P

更新日期：1980-12-01 00:00:00

abstract：:A human osteosarcoma cell line, U-2 OS, cultured under serum-free conditions, was shown to produce a growth factor (osteosarcoma-derived growth factor, ODGF) for human-cultured glial cells, fibroblasts, and other cells. ODGF, collected from the spent medium of 2 OS cultures, was purified by a sequence involving hepari...

journal_title：Journal of cellular physiology

authors： Heldin CH,Westermark B,Wasteson A

更新日期：1980-11-01 00:00:00

abstract：:A key attribute of the stringent response of bacteria is the rapid inhibition of ribosomal RNA synthesis mediated by unusual nucleotides in respnse to uncharged tRNA. The question as to whether mammalian cells show a stringent response analogous to that of bacteria was critically tested by the effective rapid amino ac...

journal_title：Journal of cellular physiology

authors： Pollard JW,Lam T,Stanners CP

更新日期：1980-11-01 00:00:00

abstract：:A method for killing dividing cells (Puck and Kao, '67) was adapted for the elimination of dividing heart muscle cells (myoblasts) in cultures. We have used this method to demonstrate their presence and to estimate their number as well as the number of nondividing heart muscle cells (myocytes) in the neo-natal rat hea...

journal_title：Journal of cellular physiology

authors： Masse MJ,Harary I

更新日期：1980-11-01 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

authors： Staber FG,Johnson GR

更新日期：1980-10-01 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

authors： Nishimune Y,Haneji T,Kitamura Y

更新日期：1980-10-01 00:00:00

abstract：:At 37 degrees C, undifferentiated murine teratocarcinoma cells (PCC4) are resistant to infection with SV40 and Polyoma virus. When infection is carried out at 31 degrees C, these cells become fully susceptible to a variety of polyoma virus strains, including wt, ts-a, and hr-t; they also display an increased susceptib...

journal_title：Journal of cellular physiology

authors： Dandolo L,Vasseur M,Kress C,Aghion J,Blangy D

更新日期：1980-10-01 00:00:00

abstract：:Mouse heptoma cells that secrete large amounts of alpha-fetoprotein (AFP) and albumin have been crossed with rat hepatoma cells that secret only albumin, and in relatively small amounts, to investigate the influence of each parental genome upon the expression of serum proteins. All of the ten independent hybrid clones...

journal_title：Journal of cellular physiology

authors： Cassio D,Hassoux R,Dupiers M,Uriel J,Weiss MC

更新日期：1980-09-01 00:00:00

abstract：:Cells of confluent cultures of the established pig renal epithelial line, LLC-PK1, accumulate alpha-methyl-D-glucoside against a concentration gradient. This transport system is strongly inhibited by phlorizin and 6-deoxy-D-glucose, moderately inhibited by phloretin, and only weakly inhibited by 3-0-methyl-D-glucose, ...

journal_title：Journal of cellular physiology

authors： Mullin JM,Weibel J,Diamond L,Kleinzeller A

更新日期：1980-09-01 00:00:00

abstract：:When human diploid fibroblasts IMR-90 are cultured in routinely used medium (Eagle's basal medium supplemented with 10% fetal calf serum), sulfhydryl compounds appear in the medium. The major component of these sulfhydryl compounds is cysteine, and it is shown that a part of medium cystine is converted into cysteine b...

journal_title：Journal of cellular physiology

authors： Bannai S,Ishii T

更新日期：1980-08-01 00:00:00

abstract：:Growth-contingent alterations in potassium and sodium fluxes, ouabain binding, and potassium ion content were examined following serum stimulation of quiescent, density-inhibited chicken embryo fibroblasts. Serum stimulation resulted in very rapid 1.5- to 1.8-fold increases in ouabain-sensitive potassium influx and le...

journal_title：Journal of cellular physiology

authors： Johnson MA,Weber MJ

更新日期：1980-05-01 00:00:00

abstract：:Human lymphocytes were equilibrated for 48 hours at 5-6 mM K+ ex over a range of temperatures between 0 and 37 degrees C, and at 5 degrees C over a range of external K+ levels between 0 and 32 mM. Cell K+ and Na+ contents are normal between 37 and 10 decrees. Below 10 degrees there is a critical thermal transition in ...

journal_title：Journal of cellular physiology

authors： Negendank W,Shaller C

更新日期：1980-04-01 00:00:00

abstract：:The growth of human epithelial cells is stimulated by cholera toxin and analogues of cyclic AMP, while the growth of breast derived fibroblasts is inhibited. These compounds have little effect on DNA synthesis in the absence of other mitogens but show a synergistic effect with serum and/or EGF. The results suggest tha...

journal_title：Journal of cellular physiology

authors： Taylor-Papadimitriou J,Purkis P,Fentiman IS

更新日期：1980-03-01 00:00:00

abstract：:Leukemic cells in the myeloblastic stage from a murine myeloid leukemia cell line (M1) were induced to differentiate to macrophages by lipopolysaccharide (LPS) from Gram-negative bacteria. A granulocyte-macrophage colony-stimulating factor (CSF) was produced only during differentiation. After induction of differentiat...

journal_title：Journal of cellular physiology

authors： Maeda M,Ichikawa Y

更新日期：1980-03-01 00:00:00

abstract：:Cells transformed by murine sarcoma viruses (MSV) produce and release into their tissue culture media several polypeptide growth stimulating factors. One of these has been partially purified using Bio-Gel P-60 column chromatography followed by DEAE-cellulose chromatography. This growth factor was assigned the name sar...

journal_title：Journal of cellular physiology

authors： De Larco JE,Todaro GJ

更新日期：1980-02-01 00:00:00

abstract：:A mutant of BHK cells (ts422E) temperature-sensitive for processing 32S rRNA to 28S rRNA (Toniolo et al., '73) also loses the ability to synthesize polyamines and 5.8S rRNA when shifted to the non-permissive temperature (39 degrees). The activity of several enzymes not involved with polyamine synthesis, methylation of...

journal_title：Journal of cellular physiology

authors： Levin EG,Clark JL

更新日期：1979-12-01 00:00:00

abstract：:The phenotype of a ouabain-resistant Aedes albopictus cell line has been partially characterized. Treatment of ouabain-sensitive cells with 0.005-1.0 mM ouabain resulted in an 80% reduction in the uptake of 86rubidium (86Rb+), an ion with an affinity for the K+ pump binding site; ouabain-resistant cells showed only a ...

journal_title：Journal of cellular physiology

authors： Mento SJ,Malinoski F,Stollar V

更新日期：1979-12-01 00:00:00

abstract：:Subcellular organellles from livers of rats three days prenatal to 50 weeks postnatal were separated on sucrose gradients. The peroxisomes had a constant density of 1.243 g/ml throughout the life of the animal. The density of the mitochondria changed from about 1.236 g/ml at birth to a constant value of 1.200 g/ml aft...

journal_title：Journal of cellular physiology

authors： Krahling JB,Gee R,Gauger JA,Tolbert NE

更新日期：1979-12-01 00:00:00

abstract：:We have previously identified two stimulatory activities affecting blood cell maturation in PHA-stimulated human lymphocytes conditioned medium (PHA-LyCM). One was granulocyte-macrophage colony stimulatory activity (GM-CSA), and the other was T lymphocyte growth stimulatory activity (TL-GSA) in suspension culture. In ...

journal_title：Journal of cellular physiology

authors： Wu AM

更新日期：1979-11-01 00:00:00

abstract：:When calcium is removed from culture medium, motility of cultured cells is decreased. The effect is rapid, reversible and pronounced. Decreased motility is observed with normal mouse Balb/c 3T3 cells, mouse L929 cells, rat kidney fibroblasts and chick embryo fibroblasts. The calcium dependence of movement can be obser...

journal_title：Journal of cellular physiology

authors： Moore L,Pastan I

更新日期：1979-10-01 00:00:00

abstract：:Stimulation of postconfluent Swiss 3T3 cells in serum-free medium with 4.3 mM Ca2+ results in marked increases in both released and cell-associated plasminogen activator (PA). Increased release of PA commenced approximately 10 to 12 hours post-stimulation and continued to increase steadily until 48 hours at which time...

journal_title：Journal of cellular physiology

authors： Chou IN,Cox R,Black PH

更新日期：1979-09-01 00:00:00

abstract：:The relationship of cell surface changes to proliferative decline of human diploid fibroblasts was investigated using the concanavalin A-mediated red blood cell adsorption assay. The amount of the red blood cells adsorbed to human diploid fibroblasts via concanavalin A increased continuously from the early phases of c...

journal_title：Journal of cellular physiology

authors： Aizawa S,Mitsui Y

更新日期：1979-08-01 00:00:00

abstract：:The relationship between replication and the synthesis of matrix sulfated proteoglycans was investigated with fetal rat chondrocytes grown in monolayer culture. The effect of N6 O2' dibutyryl adenosine 3', 5' cyclic monophosphate (DBcAMP), adenosine 3', 5' cyclic monophosphate (cAMP), 8 Bromo adenosine 3', 5' cyclic m...

journal_title：Journal of cellular physiology

authors： Miller RP,Husain M,Lohin S

更新日期：1979-07-01 00:00:00

abstract：:The binding of [3H]tuftsin to normal and in vivo stimulated mouse peritoneal macrophage populations was studied at 22 degrees C. The [3H]tuftsin binding to thioglycollate-stimulated macrophages was shown to be rapid and saturable, with an equilibrium dissociation constant (K(D)) (calculated from a Scatchard plot) of 5...

journal_title：Journal of cellular physiology

authors： Bar-Shavit Z,Stabinsky Y,Fridkin M,Goldman R

更新日期：1979-07-01 00:00:00

abstract：:Cell division in fertilized sea urchin eggs was reversibly inhibited when the ketoaldehyde phenyl glyoxal (PG) at a concentration of 0.1 mM was added to eggs for ten minutes prior to the formation of the mitotic spindle. We investigated whether inhibition of mitosis was due to PG binding to the cell surface (as previo...

journal_title：Journal of cellular physiology

authors： Amy CM,Rebhun LI

更新日期：1979-07-01 00:00:00

abstract：:Clones of Chinese hamster ovary (CHO) cells were isolated by single-step selection for resistance to killing Concanavalin A (ConA) and certain cellular and membrane properties were examined. The ConA-resistant isolates were only about 2-fold more resistant than wild type cells to the selecting lectin, but exhibited pl...

journal_title：Journal of cellular physiology

authors： Cifone MA,Hynes RO,Baker RM

更新日期：1979-07-01 00:00:00

abstract：:Somatic cell hybrids between either normal human fibroblasts, phenotypically normal mouse fibroblasts or mouse peritoneal macrophages and HT1080 human diploid fibrosarcoma cells were studied for their ability to form tumors in nude mice. The results of this study indicate that tumorigenic behavior is expressed as a do...

journal_title：Journal of cellular physiology

authors： Croce CM,Barrick J,Linnenbach A,Koprowski H

更新日期：1979-06-01 00:00:00

abstract：:Vero (African green monkey kidney) cells grown in tissue culture monolayer were sensitive to Clostridium perfringens enterotoxin. Within 30 minutes of exposure to the enterotoxin gross morphological damage was observed and within 40 minutes approximately 75% of the cells had detached. Nearly half of the cells were non...

journal_title：Journal of cellular physiology

authors： McClane BA,McDonel JL

更新日期：1979-05-01 00:00:00

abstract：:A separation procedure has been developed for mouse splenic T and B lymphocytes which is based on their differential agglutination by wheat germ agglutinin (WGA). In the presence of 50-100 micrograms/ml of WGA, multicellular aggregates are formed which are enriched in B cells. These aggregates can be separated from mo...

journal_title：Journal of cellular physiology

authors： Bourguignon LY,Rader RL,McMahon JT

更新日期：1979-04-01 00:00:00

abstract：:A mutant (A204) of Chinese hamster ovary cells (CHO-K1), which is deficient in dihydroorotate (DHO) dehydrogenase (E.C. 1.3,3.1) activity, has been isolated by a replica plating procedure. The mutant does not show a requirement for exogenously added pyrimidines. Examination of intact cells shows that the mutant accumu...

journal_title：Journal of cellular physiology

authors： Stamato TD,Patterson D

更新日期：1979-03-01 00:00:00

abstract：:The temperature sensitive leucyl-tRNA synthetase mutant tsHl and two revertants have been compared to the parental Chinese hamster ovary cells with respect to the effects of amino acid concentrations in the medium on growth. Elevating the leucine concentration 30- or 100-fold allowed tsHl to grow exponentially at 38.5...

journal_title：Journal of cellular physiology

authors： Molnar SJ,Rauth AM

更新日期：1979-02-01 00:00:00

abstract：:HeLa (substrain Ho) grown in serum free medium showed an increase in the specific activity of alkaline phosphatase when fetal calf serum (10%) was added to the medium (9.7 nmoles/sec/mg protein to 86.8). Under the same conditions, eight intracellular enzymes showed no increase in activity. Similar results were obtaine...

journal_title：Journal of cellular physiology

authors： Carlson CW

更新日期：1979-01-01 00:00:00

abstract：:Trypsinized normal rat embryo fibroblasts and untrypsinized and trypsinized transformed rat fibroblasts have two orders of binding sites for bacterial glycolipid mR595. The high order sites fix 1--3 micrograms glycolipid mR595/10(5) cells and those of the low order fix about 6 microgram glycolipids mR595/10(6) cells. ...

journal_title：Journal of cellular physiology

authors： Lallier R,Trudel M,Brailovsky CA,Nigam VN

更新日期：1979-01-01 00:00:00

abstract：:Total cellular calcium levels do not change when 3T3-4a cells stop proliferating due to serum depletion, or when serum-arrested quiescent cells are incubated for up to 44 hours in calcium-deficient medium (approximately 10 micrometer Ca++). Upon stimulation with dialyzed serum cells enter S and progress through at lea...

journal_title：Journal of cellular physiology

authors： Paul D,Ristow HJ

更新日期：1979-01-01 00:00:00

abstract：:Rat embryo fibroblasts were grown in medium containing 14C-leucine and 3H-thymidine. After a 24-hour chase in nonlabeled medium, cultures were placed in either fresh growth medium or medium containing 10-20 microgram/ml cycloheximide. Cell monolayers were processed at daily intervals for three days. Four hours prior t...

journal_title：Journal of cellular physiology

authors： Amenta JS,Sargus MJ,Baccino FM

更新日期：1978-12-01 00:00:00

abstract：:The hypothesis of functional hemizygosity has been examined for the alpha-amanitin resistant (AmaR, a codominant marker) locus in a series of Chinese hamster cell lines. AmaR mutants were obtained from different cell lines, e.g., CHO, DHW, M3- 1 and CHO-Kl, at similar frequencies. After fractionation of different RNA ...

journal_title：Journal of cellular physiology

authors： Gupta RS,Chan DY,Siminovitch L

更新日期：1978-12-01 00:00:00

abstract：:We have examined the transport of amino acids by the sodium-dependent "A" and "ASC" system in thymic- and splenic-derived lymphocytes from the Long-Evans rat. Lymphocytes derived from the thymus transport amino acids by both the "A" and "ASC" systems, whereas lymphocytes from the spleen transport amino acids by the "A...

journal_title：Journal of cellular physiology

authors： Wise WC

更新日期：1978-11-01 00:00:00

abstract：:The kinetic properties of partially purified ribonucleotide reductase from Chinese hamster ovary cells have been investigated. Double reciprocal plots of velocity against substrate concentration were found to be linear for three the substrates tested, and yielded apparent Km values of 0.12 mM for CDP, 0.14 mM for ADP ...

journal_title：Journal of cellular physiology

authors： Lewis WH,Wright JA

更新日期：1978-10-01 00:00:00

abstract：:Insulin was employed as a stimulant in our continuing investigations of the molecular mechanisms involved in the coordinate control of cellular metabolism and growth. Incubation of chicken embryo fibroblasts for 16 hours in media containing 0-0.1 U insulin/ml resulted in a 17-fold increase in the rate of 3H-thymidine ...

journal_title：Journal of cellular physiology

authors： Sanui H,Rubin AH

更新日期：1978-09-01 00:00:00

abstract：:A serum factor which enhances the growth/viability of SV40 transformed 3T3 mouse fibroblasts, but not untransformed 3T3 cells in tissue culture has been partially purified from calf serum. The purification, which involves acidification to pH 2, chromatography on Sephadex G-100 at pH 2 followed by either Sephadex G-25 ...

journal_title：Journal of cellular physiology

authors： Young DV,Nakano ET,Wiggins DS,McElaney MA

更新日期：1978-08-01 00:00:00