Abstract：
:The ultrastructural changes induced by the topical application of retinol acetate on hamster cheek pouch epithelium were evaluated using stereological analysis. Electron micrographs were prepared of the basal and superficial regions of the nucleated cell layer of the epithelium obtained from 3 treated and 3 control animals and examined at two levels of magnification. A total of 528 micrographs were analyzed using a coherent double lattice test system. Although the mean thickness of the nucleated cell layer did not change significantly after 10 days of treatment with retinol acetate the formation of keratinized squames was completely inhibited. This was paralleled by significant changes in the volume density of a number of organelles in both the basal and superficial strata. Rough endoplasmic reticulum increased significantly whereas filaments, which maintained a constant diameter of approximately 9 nm, keratohyalin granules and membrane-coating granules decreased in both strata. Desmosomes also showed a significant decrease in numerical area density in the treated tissues. In contrast, no changes were observed in the volume density of the Golgi apparatus, free ribosomes or mitochondria in the treated epithelium. It is concluded that this treatment provides an epithelium lacking all features of keratinization and may be a useful model for examining metabolic activities specifically associated with keratinization.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Hill MW,Harris RR,Carron CPdoi
10.1007/BF00214783subject
Has Abstractpub_date
1982-01-01 00:00:00pages
541-54issue
3eissn
0302-766Xissn
1432-0878journal_volume
226pub_type
杂志文章abstract：:We have previously shown that the chromogranin A (CgA)-derived peptide catestatin (CST: hCgA352-372) inhibits nicotine-induced secretion of catecholamines from the adrenal medulla and chromaffin cells. In the present study, we seek to determine whether CST regulates dense core (DC) vesicle (DCV) quanta (catecholamine ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-018-2956-1
更新日期：2019-04-01 00:00:00
abstract：:Neuronal differentiation is characterized by stereotypical sequences of membrane channel and receptor acquisition. This is regulated by the coordinated interactions of a variety of developmental mechanisms, one of which is the control by steroid hormones. We have used the metamorphosis of the holometabolous insect, Ma...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-006-0175-7
更新日期：2006-07-01 00:00:00
abstract：:Although the pharmacological properties and distribution of inositol 1,4,5-trisphosphate (IP3)-sensitive calcium stores vary considerably among tissues, studies of its localization have been devoted mostly to the central nervous system. In this report we have analyzed the localization of IP3 receptors in diverse non-n...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410050641
更新日期：1996-08-01 00:00:00
abstract：:Desmin is a muscle-specific type III intermediate filament essential for proper muscular structure and function. In human, mutations affecting desmin expression or promoting its aggregation lead to skeletal (desmin-related myopathies), or cardiac (desmin-related cardiomyopathy) phenotypes, or both. Patient muscles dis...
journal_title：Cell and tissue research
pub_type： 杂志文章,评审
doi：10.1007/s00441-014-2016-4
更新日期：2015-06-01 00:00:00
abstract：:The distribution and development of growth-associated protein 43 (GAP-43)-like immunoreactivity (-LI) in the rat circumvallate papilla (CVP) were compared to those of protein gene product 9.5 (PGP 9.5)-LI. In the adult, thick GAP-43-like immunoreactive (-IR) structures gathered densely in the subgemmal region. Some of...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410051142
更新日期：1998-09-01 00:00:00
abstract：:Proteins participating in vesicular docking and fusion have been identified in the nervous system. Such proteins appear to be important for the molecular regulation of exocytosis also in non-neuronal cells. The enterochromaffin-like (ECL) cells of the gastric acid-secreting (oxyntic) mucosa secrete histamine and chrom...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410050960
更新日期：1997-12-01 00:00:00
abstract：:Calretinin and calbindin-D28k are two calcium-binding proteins that are present in largely different sets of nerve cells in the central nervous system. Their appearance during development of the chick retina was studied by immunohistochemistry and Western blots. The patterns are mature one day before hatching. Each ce...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00313956
更新日期：1991-05-01 00:00:00
abstract：:An investigation of the stereospecificity of beta-adrenergic insulin release, its relation to alpha-adrenergic blockade and the adrenergic innervation of the pancreatic islets was performed in the mouse. It was observed that in vivo beta-adrenergic stimulation of insulin release by isopropylnoradrenaline was stereospe...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00221602
更新日期：1978-10-06 00:00:00
abstract：:Hydroxyindole O-methyltransferase (HIOMT)-immunoreactive cells and melatonin synthesis were demonstrated in bovine epithalamus (including the pineal gland) with monoclonal antibodies and cRNA probes to HIOMT. The HIOMT-immunoreactive product was present in the cytoplasm of pinealocytes. All identifiable pinealocytes w...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00327275
更新日期：1991-03-01 00:00:00
abstract：:An antiserum against the octapeptide Pea-CAH-I, a member of the adipokinetic hormone/red pigment-concentrating hormone family, has been produced for immunocytochemical staining in insects and various other invertebrate species. The anti-Pea-CAH-I serum stains the glandular corpora cardiaca cells of those insect specie...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410050601
更新日期：1996-06-01 00:00:00
abstract：:Primmorphs (a three-dimensional sponge primary cell culture system) have been revealed to be a cell/tissue nano-factory for the production of tailor-made hybrid nanostructures. Growth of primmorphs is stimulated by the presence of a titanium alkoxide precursor tolerating titania (TiO2) concentrations up to 250 microM....
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-009-0903-x
更新日期：2010-02-01 00:00:00
abstract：:Kruppel-like factor 4 (KLF4) is a zinc-finger-type transcription factor with a restricted expression pattern during skeletal development. We have previously shown that KLF4 represses osteoblast mineralization concomitant with a down-regulation in the expression of a number of osteoblastic genes, both in vivo and in vi...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-014-1931-8
更新日期：2014-10-01 00:00:00
abstract：:Injection of wheat-germ agglutinin-horseradish peroxidase conjugate (WGA-HRP) into the superior cervical ganglion (SCG) of the rat results in accumulation of WGA-HRP in sympathetic postganglionic neurons in the contralateral SCG. The sympathetic pathways involved and the mechanism underlying the labeling were investig...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00327745
更新日期：1990-10-01 00:00:00
abstract：:The ultrastructure of the mid-gut cells of female Nasonia vitripennis is described. The mid-gut consists of a uniform, single-cell epithelium. The cells of different gut regions were analysed using morphometric techniques in order to determine any differences in the components. The structure of the cells is described ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00221084
更新日期：1977-02-09 00:00:00
abstract：:The ultrastructural localization of ryanodine receptors (RyR) in sinus endothelial cells of the rat spleen was examined by confocal laser scanning and electron microscopy by using isoform-specific antibodies to each of the RyR isoforms. Immunofluorescence microscopy of tissue cryosections revealed RyR3 to be localized...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-004-0904-8
更新日期：2004-08-01 00:00:00
abstract：:The pinealocytes of the pig contain conspicuous dense bodies, the nature and role of which are not yet fully elucidated. The aim of this study was to demonstrate whether or not these structures are involved in the secretion process. The tannic acid-Ringer incubation (TARI)-method, which allows a clear-cut ultrastructu...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00313977
更新日期：1991-05-01 00:00:00
abstract：:Electron microscopy of the pineal receptor cells in light- and dark-adapted brook trout, Salvelinus fontinalis and the rainbow trout, Salmo gairdneri, revealed no significant differences in the tubular and filamentous elements of the inner segment, neck and supranuclear regions. However, changes in synaptic relations ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00234177
更新日期：1980-01-01 00:00:00
abstract：:The development of the heterophil granulocyte in the bone marrow of the rat is described, and an electron-microscopical analysis of the changes in the cytoplasm as well as in the granule population in several stages of maturation is reported. Three types of granule originate in consecutive stages of heterophil maturat...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00211466
更新日期：1983-01-01 00:00:00
abstract：:Purinoceptor subtypes were localised to various tissue types present within the nasal cavity of the rat, using immunohistochemical methods. P2X3 receptor immunoreactivity was localised in the primary olfactory neurones located both in the olfactory epithelium and vomeronasal organs (VNO) and also on subepithelial nerv...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-004-0979-2
更新日期：2005-01-01 00:00:00
abstract：:Effects of steroids on the accumulation of glycoprotein gonadotropin (GTH) in pituitaries of juvenile trout were investigated by means of scanning cytophotometry applied to immunocytochemical preparations, and with the use of a radioimmunoassay. Effects on other aspects of GTH-cell activity were analyzed by measuring ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00226962
更新日期：1984-01-01 00:00:00
abstract：:Effects of prolactin on the secretion of milk proteins have been investigated by incubating mammary tissue fragments from lactating rabbits. Within 15 min of adding the hormone to the incubation medium, cell morphology is modified: the relative volume occupied by the Golgi region is greatly increased. When prolactin i...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00220616
更新日期：1978-02-14 00:00:00
abstract：:The retina of the phalangid, Opilio ravennae, consists of retinula cells with distal rhabdomeres, arhabdomeric cells, and sheath cells. The receptive segment of retinula cells shows a clear separation into a proximal rhabdom, organized into distinct rhabdom units formed by three or four retinula cells, and a distal rh...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00233658
更新日期：1979-01-01 00:00:00
abstract：:Enterochromaffin (EC) cells regulate gut motility and secretion in response to luminal stimuli, via the release of serotonin (5-HT). Inflammatory bowel disease and other gastrointestinal disorders are associated with increased numbers of EC cells and 5-HT availability. Our aim was to determine whether proliferation of...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-007-0430-6
更新日期：2007-09-01 00:00:00
abstract：:Regeneration of rat mast cells was studied by TEM from 10 s to 48 h after secretion of histamine induced by compound 48/80. During the first 2 h, small intracellular cavities, formed during compound exocytosis and containing non-membrane-bound remnants of the granules, tended to coalesce, and after 2 h of incubation r...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00238658
更新日期：1981-01-01 00:00:00
abstract：:The localization of (Na+-K+) ATPase in the intact electrocyte of the electric organ of Electrophorus electricus (L.) and its subcellular fractions was investigated by biochemical and cytochemical methods. The distribution of AChE activity in the subcellular fractions was also comparatively analysed with this enzyme se...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00226673
更新日期：1977-11-30 00:00:00
abstract：:Antibodies against laminin (LN), fibronectin (FN), collagen type IV (Col IV), neural cell adhesion molecule (N-CAM), T-61 antigen, actin, tubulin and neurofilament protein were injected into the eyes of quail embryos (Coturnix coturnix japonica) of different ages. Twenty h after injection, the heads of the embryos wer...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00217320
更新日期：1987-09-01 00:00:00
abstract：:The distribution and nature of 125I-atrial natriuretic peptide binding sites have been examined in the brain and pituitary gland of the toad, Bufo marinus, using tissue section autoradiography, affinity cross-linking and electrophoresis, guanylyl cyclase assays and molecular analysis of natriuretic peptide receptor C ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410000266
更新日期：2000-10-01 00:00:00
abstract：:In three species of teleosts - carp Cyprinus carpio; grass carp Ctenopharyngodon idella; and crucian carp Carassius auratus - the caudal neurosecretory system displays small, medium-sized and large neurons. Urotensin I (UI)-immunoreactive and UI-nonreactive neurons were found in all three groups; in general, the numbe...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00212550
更新日期：1986-01-01 00:00:00
abstract：:Three types of sensilla occurring on the lips and on the antennae of Peripatopsis moseleyi have been investigated by scanning and transmission electron microscopy. On the lips sensory spines can be found which contain numerous cilia originating from bipolar receptor cells. They reach the tip of the spine where the cut...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00220613
更新日期：1977-02-14 00:00:00
abstract：:We have recently examined the electrophysiology and ultrastructure of approximately 100 tactile spines from the metathoracic legs of adult cockroaches. In only one animal the single sensory neuron that innervates the spine was replaced with a pair of apparently identical neurons which we believe were both functional. ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00216522
更新日期：1984-01-01 00:00:00
