Abstract:
:We report the continuous growth maintenance of untransformed and chemically transformed fibroblasts (AKR-2B, AKR-MCA cells) in low concentrations of serum (0.1% FBS). The cell lines established (AKR-0.1F, MCA-0.1F) proliferated at rates comparable to cells maintained under high serum conditions (10% FBS). Complete removal of serum from the cells did not induce quiescence. The MCA-0.1F cells were more similar to the untransformed AKR-2B fibroblasts in their morphology, saturation density, inability to form colonies under anchorage-independent conditions, steady-state level of c-myc expression, and kinetics of induction of c-myc in response to specific growth factors. This report demonstrates the utility of this cell line as a nonquiescent model system for investigating growth factor-specific effects in serum-free, cycling cells. Addition of transforming growth factor-beta (TGF-beta) (5 ng/ml) to proliferating MCA-0.1F cells, in the absence of any serum, induced a multilayered growth pattern at confluency, similar to that of AKR-MCA cells maintained in 10% FBS. Other growth factors tested did not elicit this effect. The induction of this growth pattern by TGF-beta was associated with a sustained induction of the c-myc proto-oncogene at confluency, but not with a restoration of anchorage-independent growth. The data suggest that TGF-beta may play a role in the up-regulation of c-myc at confluency previously described for AKR-MCA cells maintained in 10% serum.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Mulder KM,Brattain MGdoi
10.1002/jcp.1041380303subject
Has Abstractpub_date
1989-03-01 00:00:00pages
450-8issue
3eissn
0021-9541issn
1097-4652journal_volume
138pub_type
杂志文章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
pub_type: 杂志文章
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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
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abstract::The purpose of this study was to evaluate the anti-head and neck squamous cell carcinoma (anti-HNSCC) cell activity by C6 ceramide and multikinase inhibitor PKC412. Experiments were performed on HNSCC cell lines (SQ20B and SCC-9) and primary human oral carcinoma cells. Results showed that PKC412 inhibited HNSCC cell p...
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abstract::Activation of T-lymphocytes by antigen, mitogenic lectins, or antibodies against the T-cell receptor complex, particularly in the presence of IL1, induces the secretion of the T-cell growth factor IL2. IL2 then has a major role in regulating the duration and magnitude of the immune response. Interaction of antigen, an...
journal_title:Journal of cellular physiology
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abstract::Ornithine decarboxylase (ODC) activity usually rises to a peak a few hours after a trophic stimulus. The stimulation of ODC has been shown to depend on extracellular calcium in several in vitro eukaryotic systems. We have investigated the effect of calcium concentration on ODC activity and have found that ODC is stimu...
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abstract::Signal transduction of fibroblast growth factor (FGF) receptors is known to involve tyrosine phosphorylation of several substrates, including Grb2, phospholipase C-gamma, and phosphatidylinositol 3-kinase, whereas the role of G-proteins in FGF receptor signaling is controversial. In the present study we investigated t...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
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abstract::Many mammalian SWI/SNF complexes use Brahma-related gene 1 (Brg1) as a catalytic subunit to remodel nucleosomes for transcription regulation. In several mesenchymal cells and tissues, expression of a defective Brg1 protein negates the normal activity of the SWI/SNF complex and delays or blocks differentiation. To inve...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20432
更新日期:2006-01-01 00:00:00
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journal_title:Journal of cellular physiology
pub_type: 杂志文章
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更新日期:1977-04-01 00:00:00
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journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1040930108
更新日期:1977-10-01 00:00:00
abstract::The protein tyrosine kinase pp125FAK (focal adhesion kinase, or FAK) is expressed by a variety of cell types and has been implicated in integrin-mediated signaling events. We explored the potential functions of FAK by expressing it de novo in a cell type lacking FAK. We showed previously that cultured human macrophage...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/(SICI)1097-4652(199902)178:2<164::AID-JCP5
更新日期:1999-02-01 00:00:00
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journal_title:Journal of cellular physiology
pub_type: 杂志文章
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更新日期:2015-02-01 00:00:00
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journal_title:Journal of cellular physiology
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journal_title:Journal of cellular physiology
pub_type: 杂志文章,评审
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更新日期:2019-04-01 00:00:00
abstract::Maintenance of beta1 integrin-mediated cell adhesion in quiescent human mammary epithelial (HME) cells requires protein phosphatase (PP) 2A for not only dephosphorylation of beta1 integrin but also recruitment of IQGAP1 to Rac-bound beta1 integrin. However, how PP2A-dependent regulatory machinery of cell adhesion resp...
journal_title:Journal of cellular physiology
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更新日期:2006-07-01 00:00:00
abstract::Ankylosing spondylitis (AS) is a chronic immune-mediated inflammatory disease that affects both axial and peripheral skeletons as well as soft tissues. Recent investigations offer that disease pathogenesis is ascribed to a complex interplay of genetic, environmental, and immunological factors. Until now, there is no a...
journal_title:Journal of cellular physiology
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更新日期:2018-08-01 00:00:00
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journal_title:Journal of cellular physiology
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abstract::Nicotinamide adenine dinucleotide phosphate [NAD(P)H] oxidase complex has been shown to be involved in the process of glucose-stimulated insulin secretion (GSIS). In this study, we examined the effect of palmitic acid on superoxide production and insulin secretion by rat pancreatic islets and the mechanism involved. R...
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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
pub_type: 杂志文章
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更新日期:1978-11-01 00:00:00
abstract::Normal rat kidney [NRK] cells grown in the presence of epidermal growth factor (EGF) or platelet-derived growth factor (PDGF) have a normal phenotype and undergo density-dependent growth inhibition, whereas in the presence of multiple growth factors, density arrest is lost and the cells become phenotypically transform...
journal_title:Journal of cellular physiology
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更新日期:1993-02-01 00:00:00
abstract::Kaposi's sarcoma (KS) is the most frequent malignant lesion in patients with AIDS and is characterized by spindle cell proliferation, inflammatory cell infiltration, angiogenesis, edema, and invasiveness. KS origin is still debated. The complex aspect of this disease is probably supported by multiple concomitant patho...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/1097-4652(200008)184:2<246::AID-JCP13>3.0.
更新日期:2000-08-01 00:00:00
abstract::Melanoma as the most major skin malignancy has attracted much attention, so far. Although a successful therapeutic strategy requires an accurate understanding of the precise mechanisms for the initiation and progression of the melanoma. Several types of cell death mechanisms have recently been identified along with co...
journal_title:Journal of cellular physiology
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更新日期:2019-11-01 00:00:00
abstract::Core binding factor β (Cbfβ) is a partner protein of Runx family transcription factors with minimally characterized function in cartilage. Here we address the role of Cbfβ in cartilage by generating chondrocyte-specific Cbfβ-deficient mice (Cbfb(Δch/Δch) ) from Cbfb-floxed mice crossed with mice expressing Cre from th...
journal_title:Journal of cellular physiology
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更新日期:2016-01-01 00:00:00
abstract::Transforming growth factor beta type 1 (TGF-beta 1) was reacted with NHS-biotin to yield a derivative of TGF-beta 1 which was biotinylated on lysine residues. The biotinylated form of TGF-beta 1 was separated from the unreacted material by reverse phase chromatography. In three separate bioassays, the derivatized pept...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041410125
更新日期:1989-10-01 00:00:00
abstract::Increasing evidence supports the idea that the finite proliferative life span of normal fibroblasts is a differentiation-like phenomenon. If this were correct, an ordered sequence of differential gene expression should be associated with the in vitro progression of cells from low passage to high passage (senescence). ...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041510119
更新日期:1992-04-01 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
pub_type: 杂志文章
doi:10.1002/jcp.1041270219
更新日期:1986-05-01 00:00:00