Abstract:
:Pair formation in the hypotrichous ciliate Euplotes octocarinatus is a poorly understood phenomenon. In order to obtain information about the molecules involved in this process, we compared ciliary and cell body-associated glycoconjugates of non-mating-competent, mating-competent, and conjugating cells. Detection of glycoconjugates was carried out on Western blots by immunostaining of oxidized, digoxigenin-labeled carbohydrate moieties. Using this method, in both of two complementary mating types a 130-kDa glycoprotein was identified, which appeared on cilia during acquisition of mating competence and was reduced during cell pairing. This suggests an active role of this glycoprotein in ciliary adhesion during pair formation. Additionally, in both of the two mating types a cell body-associated 135-kDa glycoprotein was detected, which is present in non-mating-competent cells as well as in mating-competent cells, but is strongly reduced in conjugating cells. In contrast to the ciliary 130-kDa glycoprotein, the cell body-associated 135-kDa glycoprotein is not surface-exposed [8]. We therefore propose that the cell body-associated glycoprotein is either involved in the preparation for cell fusion or meiosis or that it serves as a cytoplasmic pool for the ciliary 130-kDa glycoprotein.
journal_name
Exp Cell Resjournal_title
Experimental cell researchauthors
Plümper E,Freiburg M,Heckmann Kdoi
10.1006/excr.1995.1114subject
Has Abstractpub_date
1995-04-01 00:00:00pages
490-6issue
2eissn
0014-4827issn
1090-2422pii
S0014-4827(85)71114-7journal_volume
217pub_type
杂志文章abstract::A novel C3G isoform, designated p87C3G, lacking the most amino terminal region of the cognate protein has been found to be overexpressed in two CML cell lines, K562 and Boff 210, both expressing Bcr-Abl p210. p87C3G expression is also highly augmented in patients diagnosed with chronic myeloid leukemia (CML) Ph+, in c...
journal_title:Experimental cell research
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doi:10.1016/j.yexcr.2005.12.007
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abstract::Extraocular muscles (EOMs) are categorized as skeletal muscles; however, emerging evidence indicates that their gene expression profile, metabolic characteristics and functional properties are significantly different from the prototypical members of this muscle class. Gene expression profiling of developing and adult ...
journal_title:Experimental cell research
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doi:10.1016/j.yexcr.2010.03.018
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abstract::Neural stem cells change their characteristics over time during development: they initially proliferate only and then give rise to neurons first and glial cells later. In the absence of the repressor-type basic helix-loop-helix (bHLH) genes Hes1, Hes3 and Hes5, neural stem cells do not proliferate sufficiently but pre...
journal_title:Experimental cell research
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abstract::The turbidity of axonemes during active sliding of microtubules was analysed using the stopped-flow-light-scattering method with high time resolution. Flagella of sea-urchin spermatozoa were demembranated and used after a brief treatment with trypsin. The turbidity of the suspension of flagellar axonemes during ATP-in...
journal_title:Experimental cell research
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doi:10.1016/0014-4827(86)90571-9
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abstract::12-Lipoxygenase, an arachidonic acid metabolizing enzyme of the lipoxygenase pathway, has been implicated as a major factor in promoting prostate cancer progression and metastasis. The ability of 12-LOX to aggravate the disease was linked to its proangiogenic role. Recent studies clearly demonstrated that 12-LOX enhan...
journal_title:Experimental cell research
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doi:10.1016/j.yexcr.2010.03.005
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abstract::We have been working with a recently immortalized Sertoli cell line, SF7, that appears to produce sleeves, or hollow tubules, when cultivated on a layer of growth factor-reduced Matrigel (GFR-Matrigel) in medium supplemented with serum. We tried to determine which components of GFR-Matrigel and serum provide the envir...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1999.4630
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abstract::Single cells from the siliceous sponge Geodia cydonium, obtained after chemical dissociation, reaggregate in the presence of the aggregation factor in Ca2+-containing medium to large aggregates. It was found that polyvalent organic cations (polylysine, spermine, spermidine, putrescine) enhance the Ca2+-mediated cell a...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(78)90382-8
更新日期:1978-05-01 00:00:00
abstract::Previous studies have demonstrated that treatment of fibroblasts from confluent, density-inhibited cultures with 50 mM KCl solution led to the onset of DNA replication. In the present study we show that such treatment can induce aphidicolin-sensitive DNA replication in differentiated nondividing cells: dorsal root gan...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1993.1296
更新日期:1993-11-01 00:00:00
abstract::Alpha-smooth muscle actin (SMA), an actin isoform that contributes to cell-generated mechanical tension, is normally restricted to cells of vascular smooth muscle, but SMA can also be expressed in certain non-muscle cells, most notably myofibroblasts. These cells are present in healing wounds, scars, and fibrocontract...
journal_title:Experimental cell research
pub_type: 杂志文章,评审
doi:10.1016/j.yexcr.2005.11.004
更新日期:2006-02-01 00:00:00
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2005.03.002
更新日期:2005-07-01 00:00:00
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2010.03.010
更新日期:2010-05-15 00:00:00
abstract::Incubation of isolated rat hepatocytes under conditions which support maximal autophagy (amino acid-free medium) caused a marked alteration in the density distribution of lysosomes in continuous metrizamide gradients (mean peak density reduced from 1.14 to 1.09 g/ml). The autophagic sequestration inhibitor 3-methylade...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(85)90141-7
更新日期:1985-04-01 00:00:00
abstract::Human 293 cells were stably transfected with a plasmid introducing a receptor for the ecdysone analog muristerone. The cells were further stably transfected with muristerone-inducible expression vectors carrying either the cDNA for the human high K(M) 5'-nucleotidase or the coding sequence of the nucleotidase linked t...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1999.4681
更新日期:1999-12-15 00:00:00
abstract::FTO, a demethylase for N6-methyladenosine (m6A) modification, has been implicated in multiple tumors. However, its roles in esophageal squamous cell carcinoma (ESCC) remain uncovered. This study aims to evaluate the clinical relevance and functional roles in this disease. Through immunohistochemistry, qRT-PCR and West...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2020.111894
更新日期:2020-04-01 00:00:00
abstract::In this study we examined by Northern blot analysis the expression of Raf-1 protooncogene in normal human peripheral blood leukocytes. Unlike thymocytes, circulating lymphocytes did not express appreciable levels of Raf-1 mRNA. In contrast, polymorphonuclear cells (PMN) had high levels of Raf-1 transcripts. Also densi...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(91)90366-3
更新日期:1991-06-01 00:00:00
abstract::Human skin fibroblasts deficient in peroxisome biogenesis were transformed by transfecting SV40 ori- DNA with the use of an electroporator, and the biochemical, immunocytochemical, and cytogenetic properties of the transformants were analyzed. Cells (1 x 10(6)) from a patient with Zellweger syndrome and one with neona...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(92)90278-g
更新日期:1992-08-01 00:00:00
abstract::Neurons require adhesive scaffolds for their growth and differentiation. Laminins are a major cell adhesive component of basement membranes and have various biological activities in the peripheral and central nervous systems. Here, we evaluated the biological activities of 5 peptides derived from laminin-111 as a scaf...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2020.112440
更新日期:2020-12-22 00:00:00
abstract::Calcium-tolerant myocytes were isolated from adult rat hearts by collagenase perfusion and plated on various substrates in serum-free medium and their adhesion to various extracellular matrix (ECM) components was determined. The myocytes attached readily to dishes coated with collagen type IV (C-IV), laminin (LN), and...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(85)90462-8
更新日期:1985-06-01 00:00:00
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2006.03.005
更新日期:2006-07-01 00:00:00
abstract::The structure and the polypeptide composition of the nuclear shell isolated from interphase HeLa cells have been investigated and compared to those of the intranuclear material. The isolated nuclear shell contains chromatin superstructures (28-32 nm thick fibres) made of tightly packed nucleosomes that resist low ioni...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(85)90557-9
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journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1998.4012
更新日期:1998-05-01 00:00:00
abstract::Signal-mediated nuclear import was investigated in proliferating BALB/c 3T3 cells 1, 2, 4, 6, 8, 12, 18, and 21 h after the onset of anaphase. Using nucleoplasmin-coated colloidal gold particles to assay transport capacity, it was found that import was greatest at 1 h postanaphase (after complete reformation of the nu...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1994.1333
更新日期:1994-11-01 00:00:00
abstract::Transforming growth factor beta regulates many biological processes including cell motility and invasion. Podosomes are specialized F-actin rich structures found in normal cells, such as osteoclasts and macrophages. Tumor cells often form related structures called invadopodia that are thought to promote invasion and m...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2008.09.013
更新日期:2008-11-15 00:00:00
abstract::The pre-mRNA splicing factor 4 kinase PRP4K (PRPF4B), is an essential kinase that is a component of the U5 snRNP and functions in spliceosome assembly. We demonstrated that PRP4K is a novel biological marker for taxane response in ovarian cancer patients and reduced levels of PRP4K correlate with intrinsic and acquire...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2015.12.013
更新日期:2016-01-01 00:00:00
abstract::The purpose of the present study was to investigate the influence of the actin cytoskeleton on gap junctional intercellular communication (GJIC) in cultured astrocytes. This report describes an decrease of GJIC following microinjection of anti-actin antibodies or cytochalasin D treatment. Dye transfer of microinjected...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.2002.5652
更新日期:2002-12-10 00:00:00
abstract::Spermatogonial stem cells (SSCs) support life-long spermatogenesis by self-renewing and producing spermatogonia committed to differentiation. In vitro, SSCs form three-dimensional spermatogonial aggregates (clusters) when cultured with glial cell line-derived neurotrophic factor (GDNF) and fibroblast growth factor 2 (...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2011.03.013
更新日期:2011-06-10 00:00:00
abstract::The Golgi apparatus plays roles in cell polarity, directional cell migration, and bipolar spindle assembly, as well as the secretary pathway. In addition, recent studies have suggested the Golgi-dependent control of mitotic entry. We studied the role of the centrosomal kinase Aurora A in maintaining the Golgi apparatu...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/j.yexcr.2018.03.024
更新日期:2018-06-01 00:00:00
abstract::Lamin A is a component of the nuclear envelope that is synthesized as a precursor prelamin A molecule and then processed into mature lamin A through sequential steps of posttranslational modifications and proteolytic cleavages. Remarkably, over 400 distinct point mutations have been so far identified throughout the LM...
journal_title:Experimental cell research
pub_type: 杂志文章,评审
doi:10.1016/j.yexcr.2011.08.009
更新日期:2012-01-01 00:00:00
abstract::Recent studies have provided evidence that apoptosis of pancreatic beta-cells is important in the early etiology of both type I and type II diabetes mellitus. The mechanisms responsible for induction of apoptosis are unknown, but we present evidence that the signal transduction pathway controlling the process in pancr...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1006/excr.1996.0344
更新日期:1996-11-25 00:00:00
abstract::The involvement of polyamines in cytokinesis has been examined in eggs of the amphibian X. laevis. Microinjection of spermine or spermidine into unfertilized eggs induced a shortening of the first division cycle and early formation of cleavage-like constrictions. Eggs were activated by injection and developed furrows ...
journal_title:Experimental cell research
pub_type: 杂志文章
doi:10.1016/0014-4827(84)90593-7
更新日期:1984-02-01 00:00:00