Abstract:
:We have investigated the gene targeting frequency at the hprt locus in a range of embryonic stem cell lines selected for variations in cell cycle parameters. Our results show that targeting frequency varies with cell line by as much as 12-fold between nonisogenic lines and 3-fold between isogenic lines and that a nonisogenic line can support homologous recombination events by up to 21-fold more frequently than an isogenic line. This variation is consistent with both insertion and replacement vectors. These results can be explained by an inverse linear correlation of targeting frequencies with cell doubling times. Additionally, by reducing serum concentration in the culture medium the mean cell doubling time for R1 ES cells can be increased from 11.4 to 15.7 h, with a subsequent 15-fold decrease in gene targeting frequency. This change fits the correlation found for the different nonisogenic cell lines. Our observations have important implications when performing gene targeting experiments and explain some of the variation noted between experiments.
journal_name
Exp Cell Resjournal_title
Experimental cell researchauthors
Udy GB,Parkes BD,Wells DNdoi
10.1006/excr.1996.3470subject
Has Abstractpub_date
1997-03-15 00:00:00pages
296-301issue
2eissn
0014-4827issn
1090-2422pii
S0014-4827(96)93470-9journal_volume
231pub_type
杂志文章abstract::TIP48 is a highly conserved eukaryotic AAA+ protein which is an essential cofactor for several complexes involved in chromatin acetylation and remodeling, transcriptional and developmental regulation and nucleolar organization and trafficking. We show that TIP48 abundance in HeLa cells did not change during the cell c...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2005.07.030
更新日期:2005-11-01 00:00:00
abstract::Tumor-derived exosomes (TEX) play an important role in the escape of tumor cells from immune surveillance. However, the details of the mechanism are not fully understood. In this study, the apoptosis of CD4+ T cells increased during treatment with B16-derived exosomes in vitro and in vivo, resulting in accelerated gro...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2018.08.030
更新日期:2018-10-15 00:00:00
abstract::Human T-cell leukemia/lymphotropic virus type I (HTLV-I) infection causes a variety of human diseases, including adult T-cell leukemia/lymphoma. The viral transactivator Tax has been implicated as a key factor in the HTLV-I-induced transformation pathway. To investigate the components of this pathway, we derived fibro...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1998.4381
更新日期:1999-03-15 00:00:00
abstract::Microtubule-binding proteins provide an alternative and vital pathway to the functional diversity of microtubules. Considerable work is still required to understand the complexities of microtubule-associated cellular processes and to identify novel microtubule-binding proteins. In this study, we identify Bcl2-associat...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2019.111776
更新日期:2020-02-01 00:00:00
abstract::Intracellular signaling pathways present targets for pharmacological agents with potential for treatment of neoplastic diseases, with some disease remissions already recorded. However, cellular compensatory mechanisms usually negate the initial success. For instance, attempts to interrupt aberrant signaling downstream...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2014.10.003
更新日期:2015-01-01 00:00:00
abstract::Epidermal growth factor (EGF) has been shown to be a potent mitogen for epidermal cells both in vitro and in vivo, thus contributing to the development of an organism. It has recently become clear that peroxisome proliferator-activated receptor-beta/delta (PPARbeta/delta) expression and activation is involved in the c...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2008.06.013
更新日期:2008-10-15 00:00:00
abstract::During ovarian folliculogenesis granulosa cells divide while in contact with stromal cells and other granulosa cells. Following ovulation, however, they cease dividing and differentiate into large luteal cells. When cultured in monolayer, granulosa cells spontaneously differentiate into luteal cells, thus confounding ...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1994.1084
更新日期:1994-04-01 00:00:00
abstract::Type VI collagen is a nonfibrillar collagen present as a network throughout the chick secondary stroma. Immunolocalization of type VI collagen both in the chick corneal stroma and in other systems demonstrates that type VI collagen is present associated with cells and between striated fibrils. We hypothesize that type...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(92)90200-r
更新日期:1992-06-01 00:00:00
abstract::Proliferation of human B- and T-lymphoid cell lines including Raji and Akata cells was found to be arrested at the G1 stage in the cell cycle by dimethyl sulfoxide (DMSO). The G1 arrest by DMSO occurred gradually and was completed within 96 h after addition of 1.5% DMSO concomitantly with a decrease in growth rate. Pr...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(90)90108-m
更新日期:1990-03-01 00:00:00
abstract::We report that prosaposin binds to U937 and is active as a protective factor on tumor necrosis factor alpha (TNFalpha)-induced cell death. The prosaposin-derived saposin C binds to U937 cells in a concentration-dependent manner, suggesting that prosaposin behaves similarly. Prosaposin binding induces U937 cell death p...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2004.04.011
更新日期:2004-08-01 00:00:00
abstract::Poly(ADP-ribosyl)ation (PARylation) is a post-translational modification of proteins catalysed by Poly(ADP-ribose) polymerases (PARP). A wealth of recent advances in the biochemical and functional characterization of the DNA-dependent PARP family members have highlighted their key contribution in the DNA damage respon...
journal_title:Experimental cell research
pub_type: 杂志文章,评审
doi:10.1016/j.yexcr.2014.07.003
更新日期:2014-11-15 00:00:00
abstract::The ST6Gal-I glycosyltransferase, which adds alpha2-6-linked sialic acids to glycoproteins, is overexpressed in colon adenocarcinoma, and enzyme activity is correlated with tumor cell invasiveness. Previously we reported that forced expression of oncogenic ras in HD3 colonocytes causes upregulation of ST6Gal-I, leadin...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2008.07.021
更新日期:2008-10-01 00:00:00
abstract::Human dental follicle cells (DFCs) and periodontal ligament cells (PDLCs) derived from the ectomesenchymal tissue, have been shown to exhibit stem/progenitor cell properties and the ability to induce tissue regeneration. Stem cells in dental follicle differentiate into cementoblasts, periodontal ligament fibroblasts a...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2015.12.011
更新日期:2016-07-01 00:00:00
abstract::In low serum (0.2%) medium, ascorbate stimulates primary avian tendon cells to increase procollagen synthesis from 12 to 50% of total protein synthesis. This is reversibly blocked by an increase of serum levels from 0.2 to 3%. Ascorbate in low serum medium has been shown previously to stimulate the procollagen pathway...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(88)90330-8
更新日期:1988-06-01 00:00:00
abstract::Laminins are structurally and functionally major components of the extracellular matrix. Four isoforms of laminins (laminin-1, -2, -5 and -10) are expressed in a specific pattern along the crypt-villus axis of the intestine. Previous works indicated that expression of these isoforms is developmentally regulated and th...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2004.10.025
更新日期:2005-02-15 00:00:00
abstract::Alzheimer's disease (AD) is characterized by early degeneration of cholinergic neurons and decreased levels of nerve growth factor (NGF). Thus, increasing the NGF levels by for instance encapsulated cell bio-delivery (ECB) is a potential treatment strategy. The results from our previous first-in-human studies on ECB o...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2018.08.007
更新日期:2018-10-01 00:00:00
abstract:OBJECTIVES:Vascular calcification is highly prevalent in patients with chronic kidney disease (CKD) and contributes to increased risk of cardiovascular disease and mortality. Accumulated evidences suggested that vascular smooth muscle cells (VSMCs) to osteoblast-like cells transdifferentiation (VOT) plays a crucial rol...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2014.01.025
更新日期:2014-04-01 00:00:00
abstract::This study investigates how epithelial cells moving together function to coordinate their collective movement to repair a wound. Using a lens ex vivo mock cataract surgery model we show that region-specific reorganization of cell-cell junctions, cytoskeletal networks and myosin function along apical and basal domains ...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2013.12.021
更新日期:2014-03-10 00:00:00
abstract:RATIONALE:Vessel formation is a crucial event in tissue repair after injury. Thus, one assumption of innovative therapeutic approaches is the understanding of its molecular mechanisms. Notwithstanding our knowledge of the role of Protein Kinase C epsilon (PKCε) in cardio-protection and vascular restenosis, its role in ...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2014.11.011
更新日期:2015-01-15 00:00:00
abstract::The role of protein kinase C (PKC) during fertilization in the model eukaryote Dictyostelium discoideum was studied. Inhibition of PKC activity using staurosporine, chelerythrine, and bisindoylmaleimide resulted in a dose-dependent decrease in gamete fusion without any detectable effect on cell morphology or growth. A...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1995.1322
更新日期:1995-10-01 00:00:00
abstract::Despite over 30 years of work, the fundamental structure of eukaryotic chromatin remains controversial. Here, we review the roots of this controversy in disparities between results derived from studies of chromatin in nuclei, chromatin isolated from nuclei, and chromatin reconstituted from defined components. Thanks t...
journal_title:Experimental cell research
pub_type: 杂志文章,评审
doi:10.1016/j.yexcr.2012.02.014
更新日期:2012-07-15 00:00:00
abstract::The 37 kDa/67 kDa laminin receptor (LRP/LR) is over-expressed in tumor cells and has been implicated in several tumourigenic processes such as metastasis and telomerase activation, however, more importantly the focus of the present study is on the maintenance of cellular viability and the evasion of apoptosis. The aim...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2018.04.003
更新日期:2018-07-01 00:00:00
abstract::We previously identified a novel centrosomal protein CPAP, which carries a 112-residue motif that is essential for microtubule destabilization. In this report, we define both the microtubule (MT) binding and destabilizing domains in human CPAP and analyze the mutations that affect its MT-destabilizing activity. Analys...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2008.05.012
更新日期:2008-08-15 00:00:00
abstract::Integrins are heterodimeric transmembrane proteins that mediate substrate adhesion and migration but also the bidirectional transfer of information across the plasma membrane via their cytoplasmic domains. We addressed the question of whether the very short cytoplasmic tail of the alpha1 integrin subunit of alpha1beta...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.2000.4831
更新日期:2000-04-10 00:00:00
abstract::We have shown previously that the activity of the long myosin light chain kinase (MLCK) is cell cycle regulated with a decrease in specific activity during mitosis that can be restored following treatment with alkaline phosphatase. To better understand the role and significance of phosphorylation in regulating MLCK fu...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2004.06.015
更新日期:2004-10-01 00:00:00
abstract::Statins are competitive inhibitors of hydroxy-methyl-glutaryl Coenzyme A (HMG-CoA) reductase, a key enzyme involved in the conversion of HMG-CoA to the cholesterol precursor mevalonate. Some statins, such as simvastatin (simvastatin), have been shown to have anti-cancer and anti-inflammatory effects, reducing cartilag...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2016.07.025
更新日期:2016-08-15 00:00:00
abstract::Swiss 3T3 cells can be made quiescent at low density by plating in medium MCDB 402 supplemented with dexamethasone (DEX), insulin (INS) and bovine plasma fibronectin (BPFn) for 3 days. One hour after stimulation of these cells by fibroblast growth factor (FGF), an increase in the rate of protein synthesis can be measu...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(83)90128-3
更新日期:1983-07-01 00:00:00
abstract:BACKGROUND:CDK8 is associated with the transcriptional Mediator complex and has been shown to regulate several transcription factors implicated in cancer. As a pancreatic cancer oncogene, the role of CDK8 in cancer angiogenesis remains unclear. Here, we investigated the contribution of CDK8 in pancreatic cancer angioge...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2018.05.033
更新日期:2018-08-15 00:00:00
abstract::The movement of a cell through the sequential phases of apoptosis is accompanied by a progressive decrease in cell size with loss in protein mass. In lymphocytes from Hiv-infected persons, protein loss during apoptosis is due to increased protein degradation rather than decreased synthesis. To identify and characteriz...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1999.4410
更新日期:1999-05-01 00:00:00
abstract::A large number of intracellular proteins are degraded by the ubiquitin-proteasome system, one of the major protein degradation pathways. It produces peptides of several different sizes through protein degradation, and these peptides are rapidly degraded into free amino acids by various intracellular aminopeptidases. P...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2020.112337
更新日期:2020-12-01 00:00:00