Abstract：
:Image analysis was used to study the repair process of a circular mechanical lesion of confluent human endothelial cells in culture after irradiation (10 Gy) prior to wounding. Coverage of denuded areas 48 and 96 h after injury of endothelial cells was identical in control and irradiated cultures, although the labeling index was lowered by 80 to 95% in irradiated cultures. The cell density of non damaged irradiated areas was decreased by 50%. When cultures were submitted to increasing doses of radiation (5.0-30 Gy), the labeling index of the cells diminished rapidly between 0 and 5.0 Gy and reached a plateau at 10 Gy. The decrease in cell density (50% of control at 96 h) was identical at each dose of radiation. Thus cell migration alone could be sufficient for the repair of the lesion, while cell proliferation would mainly maintain the original cell density. The addition of heparin to the culture medium slowed down cell migration and proliferation, but the speed of repair was identical in irradiated and non-irradiated cultures. Acidic fibroblast growth factor plus heparin accelerated equally the repair process whether the cultures were irradiated or not. In irradiated cultures the presence of acidic fibroblast growth factor and heparin maintained cell density in confluent areas at a level similar to that in non-irradiated damaged control cultures without addition of mitogens. Thus heparin and acidic fibroblast growth factor play a role in cell proliferation, in the maintenance of the cell monolayer integrity and in restoring a continuous layer by rapid cell migration and elongation after irradiation.
journal_name
Biol Celljournal_title
Biology of the cellauthors
Klein-Soyer C,Beretz A,Cazenave JP,Driot F,Maffrand JPdoi
10.1016/0248-4900(90)90313-rsubject
Has Abstractpub_date
1990-01-01 00:00:00pages
231-8issue
3eissn
0248-4900issn
1768-322Xjournal_volume
68pub_type
杂志文章abstract：:In the present study, we describe the structural and cytological changes observed in staggerer mutant olfactory bulbs, as compared to normal mice. On the basis of photonic and ultrastructural observations we tried to define the alterations induced by the mutation: i.e. a reduction of bulb size, a reduction in the volu...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：:We took advantage of one of the main possibilities of ion microscopy, ie isotopic analysis, to study the cellular distribution of molecules labelled either with carbon 14 or with stable isotopes of low natural abundance such as nitrogen 15 and deuterium. The surface of the sample is bombarded with an ion beam (O2+, Cs...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：10.1016/0248-4900(92)90011-o
更新日期：1992-01-01 00:00:00
abstract：:Flow cytometry (FCM) analysis of cellular DNA content has become an increasingly important clinical research tool for the measurement and identification of abnormal cell populations. Examination of cellular DNA content can provide information for use in cell cycle analysis in cancer studies. Most researchers would agr...
journal_title：Biology of the cell
pub_type： 杂志文章,评审
doi：10.1016/0248-4900(93)90116-v
更新日期：1993-01-01 00:00:00
abstract：:Total mRNA extracted from the brain of a marine worm, Nereis diversicolor, were in vitro translated using 2 cell-free systems: rabbit reticulocyte lysate and wheat germ extract. Among numerous products newly translated in both systems, only one class of 70 kDa polypeptides immunoprecipitated when we used a mixture of ...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：10.1016/0248-4900(91)90054-q
更新日期：1991-01-01 00:00:00
abstract：:The activation of M-phase promoting factor (MPF) in one-cell mouse embryo is independent from the nucleus. Other autonomous phenomena include the cortical activity observed at the end of the first cell cycle and the reorganization of the microtubule network. Here, we observed that the autonomous control of MPF activat...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：
更新日期：1998-11-01 00:00:00
abstract：:The micromeres, the first cells to be specified in sea urchin embryos, are generated by unequal cleavage at the fourth cell division. The micromeres differentiate autonomously to form spicules and dispatch signals to induce endomesoderm in the neighbouring macromeres cells in the embryo. Using a calcium indicator Fura...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：10.1016/j.biolcel.2003.11.009
更新日期：2004-03-01 00:00:00
abstract：:Interactions of cells with the extracellular matrix are essential for the control of tissue remodelling, cell migration, and embryogenesis. At the cell-extracellular matrix contact points, specialized structures are formed and termed focal adhesions, where transmembrane adhesion receptors provide a structural link bet...
journal_title：Biology of the cell
pub_type： 杂志文章,评审
doi：10.1016/s0248-4900(00)01101-1
更新日期：2000-10-01 00:00:00
abstract：:Oocyte maturation and early development have been intensively studied for well over 100 years. The earliest theory proposed that after fertilisation and during cell division determinants were unequally distributed to control cell fate; experimental proof came from using frog eggs (Roux, 1888). After understanding the ...
journal_title：Biology of the cell
pub_type： 传,社论,历史文章
doi：10.1016/j.biolcel.2004.01.002
更新日期：2004-04-01 00:00:00
abstract：BACKGROUND INFORMATION:Caspase-dependent and -independent death mechanisms are involved in apoptosis in a variety of human carcinoma cells treated with antineoplastic compounds. Our laboratory has reported that p53 is a key contributor of mitochondrial apoptosis in cervical carcinoma cells after staurosporine exposure....
journal_title：Biology of the cell
pub_type： 杂志文章
doi：10.1042/BC20080164
更新日期：2009-06-04 00:00:00
abstract：:Vertebrate embryos are able to reconstitute the body plan when early blastomeres are deleted, but it is not known whether this is accomplished by cells local to the lesion or by a readjustment of the entire pattern of the embryo. We distinguished between these two possibilities by studying which embryonic cells change...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：10.1016/j.biolcel.2004.06.002
更新日期：2004-09-01 00:00:00
abstract：:Antidiuretic hormone induces, in the apical plasma membrane of amphibian urinary bladder epithelial cells, the exocytotic insertion of intramembranous particle aggregates that probably contain water channels. Purification of the apical membrane is a way to characterize the aggregates. The isolation of such purified me...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：
更新日期：1989-01-01 00:00:00
abstract：:During a historical research, we realized that René Couteaux (1909-1999) was the first histologist who stained the postsynaptic structure of the neuromuscular junction. By means of Janus Green B dye, he revealed the membranous 'subneural apparatus' related to the 'synaptic gutter'. Hence, he justified the use of the p...
journal_title：Biology of the cell
pub_type： 传,历史文章,杂志文章
doi：10.1042/BC20050036
更新日期：2006-08-01 00:00:00
abstract：:The location of lipopolysaccharide (LPS) was studied by immunofluorescence and immunoelectron microscopy in macrophages infected with a non-invasive Shigella dysenteriae 1 strain. Bacterial degradation began only 3 h after the end of infection. The first visible sign of degradation was detected by immunogold labelling...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：10.1016/0248-4900(90)90343-2
更新日期：1990-01-01 00:00:00
abstract：:Cells sense and respond to the biochemical and physical properties of the extracellular matrix (ECM) through adhesive structures that bridge the cell cytoskeleton and the surrounding environment. Integrin-mediated adhesions interact with specific ECM proteins and sense the rigidity of the substrate to trigger signalli...
journal_title：Biology of the cell
pub_type： 杂志文章,评审
doi：10.1111/boc.201700060
更新日期：2018-03-01 00:00:00
abstract：:The highly conserved VICKZ (Vg1 RBP/Vera, IMP-1,2,3, CRD-BP, KOC, ZBP-1) family of RNA-binding proteins recognize specific cis-acting elements in a variety of different RNAs and have been implicated in cell polarity and migration, cell proliferation, and cancer. In just the last two years, the use of transgenic mice, ...
journal_title：Biology of the cell
pub_type： 杂志文章,评审
doi：10.1042/BC20040151
更新日期：2005-01-01 00:00:00
abstract：:Aspergillus fumigatus, the causative agent of human aspergillosis, binds to and degrades basement membrane laminin. Using immunoelectron microscopy, laminin binding appeared to be associated with the cell wall expansions of resting conidia, and progressively extended to the outer electron dense layer of the conidial w...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：10.1016/s0248-4900(05)80189-3
更新日期：1993-01-01 00:00:00
abstract：:This study reports the synthesis of l-desamino-7-lysine- (fluorescein)-8-arginine-vasotocin (7-lys(flu) dAVT), and describes its biological activity in the isolated urinary bladder of the toad Bufo marinus. 7-lys(flu)dAVT was fully active in increasing bladder permeability to water. A half-maximal hydroosmotic respons...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：
更新日期：1989-01-01 00:00:00
abstract：:Serial sections analysis of spermatocytes of the rodent Phyllotis darwini, reveal a persistent positional relationship between nucleolar material and centrioles. Pore rich areas interposed between these nucleocytoplasmic components, are represented graphically. Centriole replication takes place during the pachytene st...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：10.1111/j.1768-322x.1984.tb00266.x
更新日期：1984-01-01 00:00:00
abstract：:The major finding of the present study is that the ultrastructural organization of the neuromuscular synapse can be modified by a small, 4-week-long, physiological increase in the locomotor activity of the extensor digitorum longus muscle of normal adult rats trained to walk. This study measures these plastic adaptati...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：10.1016/s0248-4900(99)80078-1
更新日期：1997-03-01 00:00:00
abstract：BACKGROUND INFORMATION:The ribonucleases (RNases) constitute a heterogeneous group of enzymes, which exert diverse and specific biological functions. Several RNases have been shown to control gene expression and cell differentiation. RNASET2, a novel member of the Rh/T2/S family of RNases, exerts micro-environmental co...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：10.1111/boc.201100092
更新日期：2012-01-01 00:00:00
abstract：BACKGROUND INFORMATION:ROS (reactive oxygen species) as well as components of the antioxidant redox systems may act as signals. To link acute environmental change with gene expression, changes in ROS and GSH/GSSG (reduced/oxidized glutathione) level were measured upon acute changes in temperature or oxygen availability...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：10.1042/BC20100145
更新日期：2011-08-01 00:00:00
abstract：:Isolated cells from the proximal tubule have previously been used to study specific renal physiological processes. Here we analysed the structural changes induced by mechanical isolation on rat proximal tubule cells. As major modifications we detected: 1) a redistribution of brush border microvilli, which spread out o...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：10.1016/0248-4900(92)90026-w
更新日期：1992-01-01 00:00:00
abstract：:A history of the early development of the confocal laser scanning microscope in the MRC Laboratory of Molecular Biology in Cambridge is presented. The rapid uptake of this technology is explained by the wide use of fluorescence in the 80s. The key innovations were the scanning of the light beam over the specimen rathe...
journal_title：Biology of the cell
pub_type： 历史文章,杂志文章,评审
doi：10.1016/s0248-4900(03)00078-9
更新日期：2003-09-01 00:00:00
abstract：BACKGROUND INFORMATION:The results of water permeability measurements suggest the presence of an AQP (aquaporin) in the membrane of the CV (contractile vacuole) in Amoeba proteus [Nishihara, Shimmen and Sonobe (2004) Cell Struct. Funct. 29, 85-90]. RESULTS:In the present study, we cloned an AQP gene from A. proteus [A...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：10.1042/BC20070091
更新日期：2008-03-01 00:00:00
abstract：:The pH-related change in morphology of vinblastine (VLB)-induced paracrystals formed in Chinese hamster ovary (CHO) cells was examined immunohistochemically in order to determine both the mechanism of tubulin crystallization and the influence of acidic pHs on cytoskeletal microtubules. Lowering the extracellular pH (p...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：10.1016/0248-4900(94)90066-3
更新日期：1994-01-01 00:00:00
abstract：:In cold-stressed oocytes of Pleurodeles waltl, lampbrush chromosome lateral loops exhibited important structural modifications which were visualized under light microscopy. Electron microscopy study revealed that the RNP particles associated with growing transcripts in the matrix of these loops were 15 nm at 8 degrees...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：10.1016/0248-4900(90)90340-9
更新日期：1990-01-01 00:00:00
abstract：:When mouse peritoneal macrophages were made to adhere firmly on glass surface and then removed by sequential treatment with hypotonic triethanolamine and Nonidet P-40, a set of proteins were found to be left behind at the sites of adherent cells. Such glass-adherent proteins were detected as round or ellipsoidal patch...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：10.1016/0248-4900(92)90200-k
更新日期：1992-01-01 00:00:00
abstract：:Inside-out porcine thyroid follicles in culture undergo polarity reversal after being embedded in collagen gel. The newly-formed follicles reexpress some specific thyroid functions lost in inside-out follicles (Chambard et al., 1984. We present here an ultrastructural study of the inversion of polarity in this model s...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：10.1111/j.1768-322x.1986.tb00463.x
更新日期：1986-01-01 00:00:00
abstract：:Detergent extraction of human blood platelets pre-treated with Taxol to stabilize microtubules allows isolation of marginal band (MB) cytoskeletons. We studied MB cytoskeleton structure using dark-field light microscopy and negative stain electron microscopy (EM). Dark-field illumination clearly demonstrated the "hoop...
journal_title：Biology of the cell
pub_type： 杂志文章
doi：10.1016/0248-4900(88)90002-0
更新日期：1988-01-01 00:00:00
abstract：:The sensory organs of the vertebrate head derive from two embryological structures, the neural crest and the ectodermal placodes. Although quite a lot is known about the secreted and transcription factors that regulate neural crest development, until recently little was known about the molecular pathways that regulate...
journal_title：Biology of the cell
pub_type： 杂志文章,评审
doi：10.1042/BC20040515
更新日期：2005-05-01 00:00:00
