Abstract：
:Exponentially growing Chinese hamster V79-171b lung fibroblasts seeded at high density on plastic (approximately 7 x 10(3) cells/cm2) flatten, elongate, and produce significant amounts of extracellular fibronectin. When lysed in weak alkali/high salt, the rate of DNA denaturation following exposure to ionizing radiation is exponential. Conversely, cells plated at low density (approximately 7 x 10(2) cells/cm2) on plastic are more rounded 24 h later, produce little extracellular fibronectin, and display unusual DNA denaturation kinetics after X-irradiation. DNA in these cells resists denaturation, as though "constraints" to DNA unwinding have developed. Cell doubling time and distribution of cells in the growth cycle are identical for both high and low density cultures as is cell survival in response to radiation damage. The connection between DNA conformation and cell shape was examined further in low density cultures grown in conditioned medium. Under these conditions, cells at low density were able to elongate, and DNA denaturation of low density cultures was identical to that of high density cultures. Conversely, cytochalasin D, which interferes with actin polymerization causing cells to "round up" and release fibronectin, allowed development of constraints in high density cultures. These results suggest that DNA conformation is sensitive to changes in cell shape which result when cells are grown in different environments. However, these changes in DNA conformation detected by the DNA unwinding assay do not appear to play a direct role in radiation-induced cell killing.
journal_name
Exp Cell Resjournal_title
Experimental cell researchauthors
Olive PL,Vanderbyl S,MacPhail SHdoi
10.1016/0014-4827(91)90105-4subject
Has Abstractpub_date
1991-04-01 00:00:00pages
339-45issue
2eissn
0014-4827issn
1090-2422journal_volume
193pub_type
杂志文章abstract：:CIN85 is a multidomain protein that associates with receptors carrying tyrosine kinase domains. Here we report that it is also a component of the signaling complex associated with tumor necrosis factor receptor 1 (TNFR1), which lacks a tyrosine kinase domain. This was established by showing that CIN85 was co-precipita...
journal_title：Experimental cell research
pub_type： 杂志文章
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更新日期：2005-03-10 00:00:00
abstract：:Osteopontin (OPN) is a multifunctional protein implicated in cellular adhesion and migration. Phosphorylation has emerged as a post-translational modification important for certain biological activities of OPN. This study demonstrates that adhesion of isolated neonatal rat osteoclasts in vitro was augmented on bovine ...
journal_title：Experimental cell research
pub_type： 杂志文章
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journal_title：Experimental cell research
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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
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journal_title：Experimental cell research
pub_type： 杂志文章
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journal_title：Experimental cell research
pub_type： 杂志文章
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更新日期：1992-10-01 00:00:00
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journal_title：Experimental cell research
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(89)90198-5
更新日期：1989-03-01 00:00:00
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journal_title：Experimental cell research
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更新日期：2006-01-01 00:00:00
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journal_title：Experimental cell research
pub_type： 杂志文章
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更新日期：1986-11-01 00:00:00
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journal_title：Experimental cell research
pub_type： 杂志文章,评审
doi：10.1016/j.yexcr.2019.03.027
更新日期：2019-06-01 00:00:00
abstract：:With the aim of discovering new molecular interactions of the tight junction protein ZO-2, a two-hybrid screen was performed on a human kidney cDNA library using as bait the middle segment of ZO-2. Through this assay we identified a 24-kDa novel protein herein named ZASP for ZO-2 associated speckle protein. ZO-2/ZASP ...
journal_title：Experimental cell research
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doi：10.1016/j.yexcr.2010.09.008
更新日期：2010-11-15 00:00:00
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2006.04.007
更新日期：2006-08-01 00:00:00
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2007.05.006
更新日期：2007-07-15 00:00:00
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1006/excr.1994.1281
更新日期：1994-10-01 00:00:00
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(91)90549-a
更新日期：1991-03-01 00:00:00
abstract：:Melanoma development is a multi-step process arising from a series of genetic and epigenetic events. Although the sequential stages involved in progression from melanocytes to malignant melanoma are clearly defined, our current understanding of the mechanisms leading to melanoma onset is still incomplete. Growing evid...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2008.12.023
更新日期：2009-03-10 00:00:00
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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
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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
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journal_title：Experimental cell research
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doi：10.1016/j.yexcr.2008.08.019
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1006/excr.1999.4526
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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
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更新日期：2014-02-01 00:00:00
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journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2015.03.009
更新日期：2015-05-01 00:00:00
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journal_title：Experimental cell research
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更新日期：2005-05-15 00:00:00
abstract：:After epithelial disruption by tissue injury, keratinocytes migrate from the wound edge into a provisional matrix. This process is stimulated by growth factors that signal through epidermal growth factor (EGF) receptor, including EGF, heparin-binding EGF-like growth factor (HB-EGF) and transforming growth factor-alpha...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2006.05.009
更新日期：2006-09-10 00:00:00
abstract：:Ezrin-Radixin-Moesin (ERM) binding phosphoprotein 50 (EBP50, a.k.a. NHERF-1) is a scaffold protein essential for the localization and coordinated activity of apical transporters, enzymes and receptors in epithelial cells. EBP50 acts via multiple protein binding interactions, including oligomerization through interacti...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2005.02.011
更新日期：2005-05-15 00:00:00
abstract：:O-GlcNAc transferase (OGT)-mediated modification of protein Ser/Thr residues with O-GlcNAc influences protein activity, similar to the effects of phosphorylation. The anti-apoptotic Akt1 is both activated by phosphorylation and modified with O-GlcNAc. However, the nature and significance of the Akt1 O-GlcNAc modificat...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2008.04.014
更新日期：2008-07-01 00:00:00
abstract：:The bone marrow represents an easy accessible source of adult stem cells suitable for various cell based therapies. Several studies in recent years suggested the existence of pluripotent stem cells within bone marrow stem cells (BMSC) expressing marker proteins of both embryonic and tissue committed stem cells. These ...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2008.10.007
更新日期：2009-01-01 00:00:00
abstract：:The specific action of a pig skin fraction enriched in epidermal G1-chalone, a tissue-specific inhibitor of epidermal DNA synthesis, was investigated by means of flow cytofluorometry. The results indicate that G1-chalone inhibits progression of partially synchronized rat tongue epithelial cells (line RTE-2) through th...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/0014-4827(89)90235-8
更新日期：1989-06-01 00:00:00
abstract：:Increased protein aggregation and altered cell signaling accompany many neurodegenerative diseases including Huntington's disease (HD). Cell stress is counterbalanced by signals mediating cell repair but the identity of these are not fully understood. We show here that the mammalian target of rapamycin (mTOR) pathway ...
journal_title：Experimental cell research
pub_type： 杂志文章
doi：10.1016/j.yexcr.2011.08.020
更新日期：2012-01-01 00:00:00
