Abstract:
:Unfertilized eggs commonly lack centrioles, which are usually provided by the male gamete at fertilization, and are unable to assemble functional reproducing centrosomes. However, some insect species lay eggs that develop to adulthood without a contribution from sperm. We report that the oocyte of the parthenogenetic collembolan Folsomia candida is able to self-assemble microtubule-based asters in the absence of pre-existing maternal centrosomes. The asters, which develop near the innermost pole of the meiotic apparatus, interact with the female chromatin to form the first mitotic spindle. The appearance of microtubule-based asters in the cytoplasm of the activated Folsomia oocyte might represent a conserved mechanism for centrosome formation during insect parthenogenesis. We also report that the architecture of the female meiotic apparatus and the structure of the mitotic spindles during the early embryonic divisions are unusual in comparison with that of insects.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Riparbelli MG,Giordano R,Callaini Gdoi
10.1007/s00441-006-0253-xsubject
Has Abstractpub_date
2006-12-01 00:00:00pages
861-72issue
3eissn
0302-766Xissn
1432-0878journal_volume
326pub_type
杂志文章abstract::The pattern of innervation on individual iliotibialis muscle fibres from axolotl (Ambystoma mexicanum) has been investigated histologically and electrophysiologically. These polyneural fibres were found to be innervated on average at five end plate sites. The sites were distributed irregularly along each fibre. Averag...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00219663
更新日期:1978-01-09 00:00:00
abstract::It is a well-established fact that the sympathetic, parasympathetic and enteric nervous systems are affected at early stages in Parkinson's disease (PD). However, it is not yet clarified whether the earliest pathological events preferentially occur in any of these three divisions of the autonomic nervous system (ANS)....
journal_title:Cell and tissue research
pub_type: 杂志文章,评审
doi:10.1007/s00441-018-2851-9
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abstract::Zebrafish (Danio rerio) is widely used as an animal model to understand the pathophysiology of cardiovascular diseases. Here, we present the adult cardiac phenotype of weak atrium, myh6-/-, which carry mutations in the zebrafish atrial myosin heavy chain. Homozygous mutants survive to adulthood and are fertile despite...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-019-03044-4
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abstract::A continuous cell line was previously obtained by Simian Virus (SV) 40 transformation of primary cultures of dissociated mouse fetal hypothalami. One clone from this cell line has been previously shown to possess some of the ultrastructural features, immunological properties and synthesizing capacities of magnocellula...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00219699
更新日期:1976-08-16 00:00:00
abstract::Synexin (annexin VII) is a Ca(2+)- and phospholipid-binding protein which has been proposed to play a role in Ca(2+)-dependent membrane fusion processes. Using a monoclonal antibody against synexin, Mab 10E7, and immunogold, we carried out a semiquantitative localization study of synexin in bovine adrenal medullary ch...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00319624
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abstract::The accessory medulla with its associated pigment-dispersing hormone-immunoreactive neurons appears to be the pacemaker that controls the circadian locomotor activity rhythm of the cockroach Leucophaea maderae. To permit studies at the level of individual, identified, pacemaker neurons, we developed specific long-term...
journal_title:Cell and tissue research
pub_type: 杂志文章
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abstract::Myosin and actin were localized by indirect immunofluorescence microscopy using specific antibodies prepared in rabbits against highly purified gizzard myosin and actin. A strong fluorescence staining with both antibodies was observed in rat corneal epithelial cells, anterior lens epithelial cells, rod inner segments,...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00221771
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-020-03393-5
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-020-03302-w
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00221607
更新日期:1978-10-06 00:00:00
abstract::With the aid of electron microscopic immunocytochemistry following the application of antisera against somatostatin and luliberin (LRF), a labeling of the intercellular clefts in different areas of the brain was observed. This labeling is especially conspicuous near the basal pose of the cuboidal ependymal cells, but ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00236448
更新日期:1980-01-01 00:00:00
abstract::In model experiments with the use of horseradish peroxidase (HRP), two pathways of transport of substances to the adenohypophysis were studied, as well as the distribution of the tracer in the latter organ. The first pathway allows the tracer to penetrate from the intercellular milieu of the median eminence below the ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00214248
更新日期:1984-01-01 00:00:00
abstract::TFF-peptides (formerly P-domain peptides, trefoil factors) are typical secretory products of mucin-producing cells and seem to influence the rheological properties of mucous gels. Here, localization studies of TFF-peptides in human salivary glands are presented. Expression studies (polymerase chain reaction) revealed ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s004419900087
更新日期:1999-10-01 00:00:00
abstract::Larvae of Ascidia malaca, both before and after hatching, were treated with L-thyroxine solutions. The effect of the thyroid hormone was to induce the onset of metamorphosis and then to cause the rate at which body reorganization occurred to increase. In treated larvae the resorption of the tail occurred only few hour...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00249213
更新日期:1981-01-01 00:00:00
abstract::Beta-defensin 103 (DEFB103) shares little homology with 8 other members of the bovine beta-defensin family and in other species DEFB103 protein has diverse functions, including antimicrobial activity, a chemoattractant for dendritic cells, enhancing epithelial wound repair and regulating hair colour. Expression of the...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-015-2258-9
更新日期:2016-02-01 00:00:00
abstract::In the central nervous system, serotonergic and dopaminergic signaling is terminated by the activity of specialized transporter proteins for serotonin (SERT) and dopamine (DAT). These transporter proteins are found both on the cell surface and in intracellular transport vesicles. Trafficking between these subcellular ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-011-1256-9
更新日期:2011-11-01 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s004410000262
更新日期:2001-05-01 00:00:00
abstract::Protein kinase C (PKC) is overexpressed in cancer, including pancreatic cancer, compared with normal tissue. Moreover, PKCα is considered one of the biomarkers for the diagnosis of cancers. In several human cancers, the claudin tight junction molecules are abnormally regulated and are thus promising molecular targets ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-011-1287-2
更新日期:2011-12-01 00:00:00
abstract::The formaldehyde-induced fluorescence technique had shown 5-hydroxytryptamine-containing enteric neurons in the intestine of the teleost Platycephalus bassensis, but did not reveal such neurons in the intestine of Tetractenos glaber or Anguilla australis. Re-examination of these animals with 5-hydroxytryptamine immuno...
journal_title:Cell and tissue research
pub_type: 杂志文章
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更新日期:1988-01-01 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-008-0667-8
更新日期:2008-10-01 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00354796
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00229069
更新日期:1989-01-01 00:00:00
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journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00307817
更新日期:1995-05-01 00:00:00
abstract::The cumulus and membrana granulosa of non-atretic ovarian follicles from primordial up to a stage shortly before ovulation were studied by electron microscopy. The follicular cells of primordial follicles were undifferentiated and rested on a thick basal lamina. In secondary follicles the endoplasmic reticulum had pro...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00220436
更新日期:1979-11-01 00:00:00
abstract::Colitis is associated with alterations in electrolyte and water transport. These changes give rise to some of the symptoms experienced by patients with colitis. Alterations in fluid flux may also contribute to increased susceptibility to mucosal injury. Recently, endogenous water channel proteins (aquaporins; AQPs), h...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s00441-004-0932-4
更新日期:2004-11-01 00:00:00
abstract::The surface coat of the electrocyte of the main electric organ of Electrophorus electricus was studied using cytochemical methods (periodic acid-silver methanamine, periodic acid-chromic acid-silver methenamine, periodic acid-thiosemicarbazide-silver proteinate, Concanavalin A - horseradish peroxidase, ruthenium red, ...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00226622
更新日期:1977-09-26 00:00:00
abstract::The effects of the administration of thyroxine (T4) on the postnatal cytodifferentiation of granular convoluted tubule (GCT) cells of the submandibular gland (SMG) of Lewiss-Webster mice were studied by light and electron microscopy. From birth, mice of both sexes were injected daily with T4 (sc 0.4 micrograms/g BW) a...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00218202
更新日期:1987-05-01 00:00:00
abstract::Mesenchymal stromal cells (MSCs), especially those lying close to cartilage defects, are an important cell source for cartilage regeneration. We hypothesize that a larger number of MSCs might become available, if the bone marrow in the immediate vicinity of the subchondral bone is stimulated for MSCs in advance of the...
journal_title:Cell and tissue research
pub_type: 杂志文章
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abstract::The antigen detected by the rat anti-mouse monoclonal antibody (m Ab), anti-BSP-3, has been initially described as a brain cell-surface protein. Evidence is presented that this m Ab recognizes mouse (Na+ + K+)-ATPase (ATP phosphohydrolase, E.C.3.6.1.3). The antigen, purified from mouse brain by means of affinity chrom...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/BF00218655
更新日期:1983-01-01 00:00:00
abstract::Ultrastructural aspects of hypertrophic chondrocytes in hamster and mouse epiphysial cartilage were examined in relation to their metabolic activities. With the hypertrophic change, cytoplasmic vacuolization proceeded leaving the partially intact endoplasmic reticulum (ER). In the hypertrophic cells, cytoplasmic hyalu...
journal_title:Cell and tissue research
pub_type: 杂志文章
doi:10.1007/s004419900082
更新日期:1999-11-01 00:00:00