Abstract:
:Treatment with ionic detergents of nuclei isolated from various continuously growing cell lines generally yields chromatin samples of high viscosity. Extensive treatment with nuclease-free proteinase K or pronase solubilized the viscous lysates with > 90% of the DNA migrating at approximately 50 kb. Freshly prepared human peripheral blood T cells also yield a substantial fraction of their DNA in an approximately 50- to 100-kb band. The cleavage sites may coincide with a class of DNase I-hypersensitive regions, since digestion of chromatin by DNase I at approximately 10 U/ml, without protease, also yields fragments of preferentially approximately 50-kb size. Occasionally, the oligonucleosomal ladder was also detected together with high molecular weight degradation products. Remarkably, all of these fragmentation patterns were seen in healthy, resting or proliferating cells, i.e., in the absence of apoptosis. Tritiated thymidine incorporation could be readily detected in the approximately 50-kb DNA fragments. The effect of an apoptotic intracellular milieu on the integrity of isolated chromatin is apparently imitated by the extensive protease treatment used in our DNA isolation protocol.
journal_name
Exp Cell Resjournal_title
Experimental cell researchauthors
Szabó G Jrdoi
10.1006/excr.1995.1381subject
Has Abstractpub_date
1995-12-01 00:00:00pages
320-5issue
2eissn
0014-4827issn
1090-2422pii
S0014-4827(85)71381-Xjournal_volume
221pub_type
杂志文章abstract::The histone 2A variant macroH2A1.2 is expressed in female and male mammals and is implicated in X-chromosome inactivation and autosomal gene silencing. In undifferentiated and early differentiating murine embryonic stem (ES) cells a cytosolic pool of macroH2A1.2 has recently been reported and found to be associated wi...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.2001.5277
更新日期:2001-08-15 00:00:00
abstract::KRIT1 is a disease gene responsible for Cerebral Cavernous Malformations (CCM). It encodes for a protein containing distinct protein-protein interaction domains, including three NPXY/F motifs and a FERM domain. Previously, we isolated KRIT1B, an isoform characterized by the alternative splicing of the 15th coding exon...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2008.10.006
更新日期:2009-01-15 00:00:00
abstract::When micromeres isolated from the 16-cell stage of Strongylocentrotus purpuratus are cultured in sea water containing 3.5% horse serum, they produce spicules at approximately the same time as in normal development. The serum requirement of the micromeres has been investigated by adding serum at varying intervals after...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(83)90355-5
更新日期:1983-12-01 00:00:00
abstract::Previous hybrid studies involving fusion of normal with immortal human cells indicated that the phenotype of cellular senescence is dominant and that immortality results from recessive changes in normal growth regulatory genes. We have further assigned 28 different immortal human cell lines to at least four complement...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(91)90179-x
更新日期:1991-01-01 00:00:00
abstract::β-catenin is a key mediator of Wnt signaling and its deregulated nuclear accumulation can drive cancer progression. While the central armadillo (Arm) repeats of β-catenin stimulate nuclear entry, the N- and C-terminal "tail" sequences are thought to regulate turnover and transactivation. We show here that the N- and C...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2016.09.009
更新日期:2016-11-01 00:00:00
abstract::The relationship between Lamin B2 and tumor proliferation and migration is unclear. We explored the impact of Lamin B2 on non-small cell lung cancer (NSCLC) cells. Tissue microarray and immunohistochemistry were combined to evaluate Lamin B2 expression and its relationship with the clinicopathological factors found in...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2020.112090
更新日期:2020-08-15 00:00:00
abstract::CUB domains are most exclusively found in secreted proteins and in a few transmembrane proteins. These domains are approximately 110 amino acids long and have four conserved cysteines that form a β-sandwich fold. CUB domains proteins are involved in a wide range of biological functions. We have shown that CUB domains ...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2019.111499
更新日期:2019-10-01 00:00:00
abstract::To study delayed genetic and epigenetic radiation effects, which may trigger radiation-induced carcinogenesis, we have established single-cell clones from irradiated and non-irradiated primary human fibroblasts. Stable clones were endowed with the same karyotype in all analyzed metaphases after 20 population doublings...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2018.06.034
更新日期:2018-09-15 00:00:00
abstract::ADP-ribosylation factors (ARFs) are modified by a myristate group that is covalently linked to the second glycine residue at the amino terminus. With the recent evidence that ARF6 localizes to the cell periphery and plays a regulatory role in endocytic traffic, we have investigated the role of myristoylation on the me...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1995.1362
更新日期:1995-11-01 00:00:00
abstract::Rhodamine 123 (R 123) is a positively charged dye at physiological pH that accumulates specifically in the mitochondria of living cells without cytotoxic effect. In the present study, the uptake of R 123 by EL-4 lymphoma cells in culture with anticancer agents was measured by flow cytometry. Changes in R 123 uptake du...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(92)90162-2
更新日期:1992-01-01 00:00:00
abstract::Compact mouse morulae were decompacted in calcium-free medium and allowed to recompact in standard embryo culture medium. When the recompaction medium contained trifluoperazine (TFP)(0.05 mM), an inhibitor of the calcium-dependent protein calmodulin, the embryos failed to recompact. This effect could not be overcome b...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(82)90406-2
更新日期:1982-11-01 00:00:00
abstract::Uptake and metabolism of thymidine and adenosine have been studied in embryos of the sea urchin Strongylocentrotus purpuratus. Uptake of these nucleosides is found to be mutually competitive, with the Km for uptake of thymidine similar to its Ki for inhibition of adenosine uptake and vice versa. The metabolic studies ...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(87)90411-3
更新日期:1987-01-01 00:00:00
abstract::Hypoxic conditions are common in solid tumors and have a significant effect on tumor progression, therapeutic and prognosis. Long noncoding RNAs (lncRNAs) are longer than 200 nucleotides and cannot be translated into proteins, which play important roles in some diseases including cancer. Although previous analysis hav...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2017.06.016
更新日期:2017-09-15 00:00:00
abstract::Wnt1 and -5a have been shown to modulate the proliferation and differentiation of midbrain dopaminergic (DA) neurons. However, it is not known whether other Wnts or which Frizzled (Fz) receptors are expressed in the developing midbrain. We found that 13 out of 19 Wnts, all 10 Fzs, and several intracellular Wnt signali...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2006.01.032
更新日期:2006-05-15 00:00:00
abstract:BACKGROUND AND OBJECTIVE:In recent years, immunotherapy for the treatment of tumors have been established. Dendritic cells (DCs) are extremely efficient and professional antigen presenting cells (APCs), which are an important target for immune therapeutic interventions in cancer. In present study, we investigated wheth...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2016.10.019
更新日期:2016-12-10 00:00:00
abstract::Current methods of monitoring insulin in culture are limited to soluble insulin (secretions or lysates) or synthetic gene reporter analyses. We present an insulin-specific cell enzyme-linked immunosorbent assay (cell-ELISA) to assess relative intracellular insulin protein content of adherent cultures, normalized to ce...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2016.06.014
更新日期:2016-09-10 00:00:00
abstract::Cleavage of specific protein subsets is a key event in the execution of apoptosis. Protein degradation may serve for the structural alterations that result in cell self-destruction, but it may also function as a switch in the decisions between apoptosis and necrosis or apoptosis and cell proliferation. Here, we show t...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1997.3850
更新日期:1998-02-01 00:00:00
abstract::Notch signaling involves the proteolytic cleavage of the transmembrane Notch receptor after binding to its transmembrane ligands. Jagged-1 also undergoes proteolytic cleavage by gamma-secretase and releases an intracellular fragment. In this study, we have demonstrated that the Jagged-1 intracellular domain (JICD) inh...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2011.07.014
更新日期:2011-10-15 00:00:00
abstract::K252a, a protein kinase inhibitor, acts as a neurotrophic factor in several neuronal cells. In this study we show that K252a enhanced the differentiation of C2C12 myoblasts as well as tyrosine phosphorylation of several focal adhesion-associated proteins including p130(Cas), focal adhesion kinase, and paxillin. The ty...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1999.4648
更新日期:1999-11-01 00:00:00
abstract::The release of cell surface-derived microparticles, or ectosomes, has now been described for many different cell types. In various diseases characterized by systemic inflammation, the numbers of ectosomes released from specific cell-types are found increased manifold in the circulation. Their pro-inflammatory and pro-...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2005.03.011
更新日期:2005-07-15 00:00:00
abstract::It has been suggested that DNA organized into replication foci during S-phase remains stably aggregated in non-S-phase cells and that these stable aggregates provide fundamental units of nuclear or chromosome architecture [C. Meng and R. Berezney (1991) J. Cell Biol. 115, 95a; E. Sparvoli et al. (1994) J. Cell Sci. 10...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1998.4311
更新日期:1999-02-25 00:00:00
abstract::We have studied the cytotoxicity of ricin in cells treated with brefeldin A (BFA), which dramatically disrupts the structure of the Golgi apparatus causing Golgi content and membrane to redistribute to the ER. BFA inhibits the cytotoxicity of ricin in Chinese hamster ovary, normal rat kidney, and Vero cells and abolis...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(91)90056-z
更新日期:1991-02-01 00:00:00
abstract::RalGPS2 is a Ras-independent Guanine Nucleotide Exchange Factor (GEF) for RalA containing a PH domain and an SH3-binding region and it is involved in several cellular processes, such as cytokinesis, control of cell cycle progression, differentiation, cytoskeleton organization and rearrangement. Up to now, few data hav...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2017.11.036
更新日期:2018-01-15 00:00:00
abstract::We investigated the ability of endocytosed activated epidermal growth factor receptors (EGFR) to induce expression of the cyclin-interacting protein p21/CIP1 in A431 cells. Transforming growth factor alpha (TGFalpha) and EGF both induced tyrosine phosphorylation, induction of p21/CIP1, and thereby inhibition of DNA sy...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1998.4127
更新日期:1998-08-25 00:00:00
abstract::We had earlier demonstrated that a 46-kDa glycoprotein is involved in the differentiation of rat skeletal myoblasts. We now show that the binding of this glycoprotein to collagen and gelatin is disrupted by Arg-Gly-Asp (RGD) containing peptide but not by Arg-Gly-Glu (RGE). The former peptide also selectively elutes th...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(88)90368-0
更新日期:1988-11-01 00:00:00
abstract::The neurohormone serotonin (5HT) triggers meiosis reinitiation in oocytes of the pelecypod molluscs Spisula solidissima and Ruditapes philippinarum. However, while Spisula oocytes complete maturation, Ruditapes oocytes arrest in metaphase I. Anti-phosphotyrosine antibody revealed that serotonin triggered an early tyro...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1994.1163
更新日期:1994-06-01 00:00:00
abstract::Mechanical stress is an important regulator of chondrocyte functions but the mechanisms by which chondrocytes sense mechanical signals are unknown. Receptors for matrix molecules are likely involved in the mechanical signaling. In the first part of this study we identified integrins with affinity for the cartilage-spe...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1995.1401
更新日期:1995-12-01 00:00:00
abstract::Over-activation of beta-catenin/TCF signaling has been frequently observed in hepatocellular carcinoma (HCC). Better understanding the molecular mechanism for the aberrant activation of beta-catenin/TCF signaling would provide novel insights into the treatment of this malignancy. In this study, we have shown that the ...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2017.06.014
更新日期:2017-09-15 00:00:00
abstract::A combination of broadly expressed transcriptional activators and spatially restricted repressors are used to pattern embryos into cells of different fate. Transcriptional co-regulators are essential mediators of transcription factor function, and contribute to selective transcriptional responses in embryo development...
journal_title:Experimental cell research
pub_type: 杂志文章,评审
doi:10.1016/j.yexcr.2013.10.010
更新日期:2014-02-01 00:00:00
abstract::Pseudolaric acid B (PAB) is the major bioactive constituent in the root bark of Pseudolarix kaempferi and has been reported to have cytotoxicity against tumor cells. Our in vivo experiments showed that PAB could inhibit gastric cancer cell lung metastasis in a nude mouse haematogenous dissemination model. To evaluate ...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2017.01.012
更新日期:2017-03-01 00:00:00