Abstract:
:Nidogen/entactin is a Mr = 150,000 glycoprotein which is present within basement membranes in a noncovalent stable complex with laminin. We have studied the effects of nidogen/entactin complexed or not with laminin on attachment, spreading, and functions of adult rat hepatocytes in primary culture. Freshly isolated hepatocytes attached on either recombinant or EHS-derived nidogen, although to a lesser extent than on laminin/nidogen complex, laminin, and E8 and P1 fragments of laminin. Hepatocytes bound on a nidogen fragment bearing the N-terminal and rod-like domains but not on either the N-terminal globules or the rod-like domain which contains a RGD sequence. Attachment of hepatocytes on nidogen and laminin/nidogen complex was inhibited by anti-beta 1 integrin antibodies. Hepatocytes remained rounded on nidogen and laminin, whereas they rapidly spread on laminin/nidogen complex and collagen IV. Nidogen, laminin, and laminin/nidogen complex transiently maintained high steady-state albumin mRNA levels in cultured hepatocytes, but a decrease in albumin mRNA content was observed after 24 h, independently of the substrates. Actinomycin D and cycloheximide treatment indicated that the transient effect of these substrates on albumin expression was related to post-transcriptional mechanisms. Laminin B2 mRNAs were not detectable in freshly isolated hepatocytes but were expressed in 4 h hepatocyte cultures. After 24 h, a dramatic increase in the steady-state level of laminin B2 mRNA was found in hepatocytes cultured on nidogen and laminin/nidogen complex. This effect was slightly prevented in hepatocytes plated on laminin. These results show that interactions of hepatocytes with nidogen/entactin in vitro result only in a transient modulation of hepatocyte functions.
journal_name
J Cell Physioljournal_title
Journal of cellular physiologyauthors
Levavasseur F,Mayer U,Guillouzo A,Clement Bdoi
10.1002/jcp.1041610210subject
Has Abstractpub_date
1994-11-01 00:00:00pages
257-66issue
2eissn
0021-9541issn
1097-4652journal_volume
161pub_type
杂志文章abstract::At the initial stage of cell-cell contact of epithelial cells, primordial spot-like junctions are formed at the tips of thin cellular protrusions radiating from adjacent cells, where E-cadherin and ZO-1 are precisely coconcentrated (Yonemura et al., 1995, J. Cell Sci. 108:127-142). In fully polarized epithelial cells,...
journal_title:Journal of cellular physiology
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abstract::Galectin-1 is reported to be upregulated in various human cancers. However, the relationship between galectin-1 expression and cancer prognosis has not been systematically assessed. In this study, we searched PubMed, Web of Science, and Embase to collect all relevant studies and a meta-analysis was performed. We found...
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journal_title:Journal of cellular physiology
pub_type: 杂志文章
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更新日期:2005-11-01 00:00:00
abstract:OBJECTIVE:To investigate whether mature human articular chondrocytes (AC) exhibit an antiproliferative effect on activated peripheral blood mononuclear cells (PBMC) and to compare this effect with other cells of mesenchymal origin. METHODS:AC from healthy cadaveric cartilage were grown for different passages, in the a...
journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.20789
更新日期:2006-12-01 00:00:00
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journal_title:Journal of cellular physiology
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abstract::Cardiac hypertrophy (CH) has become a huge threat to human health. Recent years, long noncoding RNAs (lncRNAs) have been studied in human diseases, including CH. According to bioinformatics analysis, 10 lncRNAs possibly involved in the progression of CH were screened out. Among which, lncRNA SYNE1 antisense RNA 1 (SYN...
journal_title:Journal of cellular physiology
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journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041410204
更新日期:1989-11-01 00:00:00
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journal_title:Journal of cellular physiology
pub_type: 杂志文章
doi:10.1002/jcp.1041230106
更新日期:1985-04-01 00:00:00
abstract::Protein-DNA interactions within the promoter of a cell cycle-regulated human H4 histone gene were examined by binding of 5'-end-labeled DNA segments to Western blots of nuclear protein fractions. Specific protein interactions were observed with DNA segments located between -500 bp and -1,070 bp upstream of the ATG ini...
journal_title:Journal of cellular physiology
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更新日期:1989-05-01 00:00:00
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journal_title:Journal of cellular physiology
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abstract::An isoform of the Na(+)/Ca(2+) exchanger (SDNCX1.10) was cloned from mesangial cells of Sprague-Dawley rat. Regulation of this isoform was compared to two other clones that were derived from the Dahl/Rapp salt sensitive (SNCX) and salt resistant rat (RNCX). All isoforms differ at the alternative splice site and at ami...
journal_title:Journal of cellular physiology
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doi:10.1002/jcp.10447
更新日期:2004-05-01 00:00:00
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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:2012-08-01 00:00:00
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journal_title:Journal of cellular physiology
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doi:10.1002/jcp.22394
更新日期:2011-03-01 00:00:00
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更新日期:2012-01-01 00:00:00
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journal_title:Journal of cellular physiology
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更新日期:1992-12-01 00:00:00
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journal_title:Journal of cellular physiology
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更新日期:1996-01-01 00:00:00