Abstract：
:Western Blot and immunohistochemical studies were conducted in the sea pansy Renilla koellikeri, a representative of the earliest multicellular animals with a nervous system, using various antibodies raised against enzymes of the catecholamine biosynthetic pathway. Western blots of sea pansy extracts revealed a protein band that co-migrated with dopamine-beta-hydroxylase (DBH) from mouse adrenal glands. Similar experiments with antisera against tyrosine hydroxylase (TH) revealed several immunoreactive protein bands, all of larger molecular weight than mammalian tyrosine hydroxylase. DBH-like and, to a lesser extent, TH-like and phenylethanolamine N-methyltransferase-like immunoreactivities were detected in ectodermal sensory neurons and associated subectodermal neurites, in neurons of the mesogleal nerve-net and associated amoebocytes, and in some endodermal neurons. While it is still not clear whether the detected TH-immunoreactive proteins represent some form of TH, the presence in sea pansies of a DBH-like protein is in agreement with previously detected norepinephrine-like immunoreactivity in the same species. The widespread distribution of these immunoreactivities in various sea pansy neurons suggests important roles for catecholamines in nerve net activity.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Anctil M,Hurtubise P,Gillis MAdoi
10.1007/s00441-002-0601-4keywords:
subject
Has Abstractpub_date
2002-10-01 00:00:00pages
109-17issue
1eissn
0302-766Xissn
1432-0878journal_volume
310pub_type
杂志文章abstract：:A body of evidence points to the existence of stem cell stores in adult tissues, in addition to the well-known hematopoietic stem cells from bone marrow. Many reports describe the ability of these multipotent cells (developmentally non-compromised with their organs of origin) to give rise to many different cell types ...
journal_title：Cell and tissue research
pub_type： 杂志文章,评审
doi：10.1007/s00441-006-0172-x
更新日期：2006-09-01 00:00:00
abstract：:The development of the rat adrenal medulla was studied at the ultrastructural level with particular emphasis placed on early discrimination of different catecholamine-storing cells. The first granule-containing cells, phaeochromoblasts, were seen at day 15 of gestation migrating into the anlage of the cortex. These ce...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00233834
更新日期：1981-01-01 00:00:00
abstract：:Fibrosis is the result of a wound-healing response that fails to restore normal tissue structure function. One of the critical hallmarks of fibrosis is disrupted collagen remodeling. In tissue homeostasis, the production, deposition and organization of collagen is balanced by the degradation and remodeling of collagen...
journal_title：Cell and tissue research
pub_type： 杂志文章,评审
doi：10.1007/s00441-016-2440-8
更新日期：2016-09-01 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
doi：10.1007/s00441-010-1020-6
更新日期：2010-09-01 00:00:00
abstract：:Poreless sensilla (np-sensilla) on the antennae of 18 species from 9 insect orders, and on the maxillary palps of Periplaneta americana were investigated using chemo- and cryofixation. The number of np-sensilla is low. Common features of these sensilla are: (a) the presence of a peg, (b) the lack of pores that lead to...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00213769
更新日期：1983-01-01 00:00:00
abstract：:The effect of phenylthiourea (PTU) on the pigment epithelium and the photoreceptor cells in the developing retina of Haplochromis burtoni was studied by electron microscopy. In the retinal pigment epithelium of 6-day old embryos, both types of melanin granule (spindle-shaped and rod-shaped) are already found. PTU inhi...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00219054
更新日期：1977-03-09 00:00:00
abstract：:Caveolae or membrane vesicles are commonly observed in smooth and skeletal muscle as well as in working heart muscle. Using sections of fixed tissue and replicas of freeze-cleaved material, we show in this study that caveolae are also very numerous in sinus node cells of the rabbit, and to a lesser degree, in the atri...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00234869
更新日期：1980-01-01 00:00:00
abstract：:Ossification of calvariae from day-21 rat fetuses was reinvestigated by electron microscopy using different fixation techniques (glutaraldehyde/OsO4, tannic acid, ruthenium red, K-pyroantimonate). An osteoid layer with scattered mineral deposits was found at the mineralization front. Directly beyond this layer, a shee...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00318693
更新日期：1992-01-01 00:00:00
abstract：:Pituitary adenylate cyclase-activating polypeptide (PACAP) and helospectin are two vasoactive intestinal polypeptide (VIP)-related neuropeptides that have recently been demonstrated in the mammalian gut; the aim of this study was to reveal their occurrence and localisation in the gastrointestinal tract, swimbladder, u...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00300227
更新日期：1994-09-01 00:00:00
abstract：:The fine structure, nature and fate of the components of the nucleolus were studied in young (steps 1, 2), intermediate (steps 3, 4, 5) and mature spermatids (steps 6, 7, 8) of man and monkey, by use of several cytochemical techniques (alcoholic PTA; sodium tungstate: EDTA; HAPTA; nuclease-gold complexes; NOR silver s...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00305735
更新日期：1991-04-01 00:00:00
abstract：:Our immunocytochemical investigation of the magnocellular neuroendocrine system in the goldfish hypothalamus reveals enkephalin (ENK)-containing neurons interspersed among the vasotocin (VT)- and isotocin (IT)-containing neurons of the preoptic nucleus. The perikarya of the ENK, VT, and IT neurons do not show distinct...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00236894
更新日期：1979-08-03 00:00:00
abstract：:The interstitial cells of Cajal (ICCs) are important mediators of gastrointestinal (GI) motility because of their role as pacemakers in the GI tract. In addition to their function, ICCs are also structurally distinct cells most easily identified by their ultra-structural features and expression of the tyrosine kinase ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-012-1434-4
更新日期：2012-08-01 00:00:00
abstract：:A gelsolin-related protein was isolated from seminal vesicles of the annelid Lumbricus terrestris. Compared with the isoforms of the gelsolin-related protein previously found in the muscle of the annelid body wall, the isolated protein was assigned to the first isoform (EWAM-P1) because of its electrophoretic mobility...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-007-0561-9
更新日期：2008-04-01 00:00:00
abstract：:Previous studies have indicated that 19-day-old fetal long bones of the rat contain an adenylyl cyclase-stimulating activity antigenically related to parathyroid hormone-related peptide. To ascertain its origin, Northern blotting and in situ hybridization histochemistry were performed. Results demonstrate that mRNA of...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00645063
更新日期：1992-12-01 00:00:00
abstract：:The ultrastructure of the sinus gland of the fiddler crab, Uca pugnax, was investigated and found to be similar to that in other crustaceans. Five types of neurosecretory axon terminals were tentatively identified on the basis of the size, shape, and electron density of granules within the axons. Release of neuro-secr...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00222805
更新日期：1975-12-29 00:00:00
abstract：:The ultrastructure of the dermal papulae of a starfish (Asterias rubens) is consistent with a respiratory function. The present study has shown no regions specialized for excretory mechanisms. The papulae consist of an outer ectodermal epithelium of sensory, support and gland cells and a small basiepithelial nerve ple...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00229616
更新日期：1978-03-13 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：:Microinjection of DNAase I, which is known to form a specific complex with G-actin, induces characteristic changes in cytoplasmic streaming, locomotion and morphology of the contractile apparatus of A. proteus. Light microscopical studies show pronounced streaming originating from the uroid and/or the retracting pseud...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00236075
更新日期：1979-07-17 00:00:00
abstract：:Male germ cells of the greater bandicoot rat, Bandicota indica, have recently been categorized into 12 spermiogenic steps based upon the morphological appearance of the acrosome and nucleus and the cell shape. In the present study, we have found that, in the Golgi and cap phases, round spermatid nuclei contain 10-nm t...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-008-0668-7
更新日期：2008-10-01 00:00:00
abstract：:The alimentary system of Habrotrocha rosa is composed of the alimentary channel, five digestive glands and another gland which is in close relation to the intestinal syncytium. After the present investigation, the alimentary channel can be divided into sections which clearly differ from each other, these are: oral cav...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00209138
更新日期：1978-06-08 00:00:00
abstract：:Obesity induces metabolic disorders such as type 2 diabetes, hypertension, and cardiovascular diseases and has become a global health concern. Recent studies imply that fat accumulation in nonadipose tissue correlates with metabolic disorders. However, there are no suitable animal models to evaluate this phenomenon. T...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-018-2908-9
更新日期：2019-02-01 00:00:00
abstract：:Dichloromethylene diphosphonate can be used for temporary elimination of macrophages in the spleen when administered after entrapment in liposomes. No comparable effect on the macrophages of the spleen was observed with free dichloromethylene diphosphonate or in the case of empty liposomes. Marginal metallophils on th...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00217308
更新日期：1984-01-01 00:00:00
abstract：:Adult male Branta canadensis maxima were collected from a nonmigratory feral population during their premolt, molt and postmolt phases. Lean dry weight of the pectoralis muscle decreased significantly (p less than or equal to 0.0001) during molt, as a result of disuse atrophy. Histochemical analysis revealed that the ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00215763
更新日期：1987-03-01 00:00:00
abstract：:The fine structure of one of the cellular components of the nucleus recesses lateralis of trout is described. These cells have an enormously developed smooth endoplasmic reticulum which makes their identification easy. The relationship of this cell type with the ventricular cavity, neighbouring cells and the presence ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00206343
更新日期：1982-01-01 00:00:00
abstract：:Two types of horizontal cells, H1 and H2, were classified using the Golgi technique on flat mounts of the retina of the frog. Cell type H1 possesses rather short, thick dendrites; the diameter of its dendritic field ranges from 40-90 micrometers. H2-cell displays long and thin dendrites; the diameter of its dendritic ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00216747
更新日期：1981-01-01 00:00:00
abstract：:The organization of the neuropeptide Y (NPY)-immunoreactive system in the forebrain, pineal organ and retina of a biweekly spawning fish (Fundulus heteroclitus) was investigated. Immunoreactivity was encountered in neurons of the nucleus olfactoretinalis, in the large population of neurons in the floor of the telencep...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410050541
更新日期：1996-02-01 00:00:00
abstract：:Maternal immunoglobulin-G (IgG) is known to be transported across the placental syncytiotrophoblast during the period when the human fetus is incapable of manufacturing these defensive molecules. In this study we investigated the possible role of the amniochorion, that surrounds the amniotic cavity in which the fetus ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00583405
更新日期：1995-08-01 00:00:00
abstract：:The oxyntic mucosa of the mammalian stomach is rich in endocrine cells, such as ECL cells, A-like cells, somatostatin cells, D1/P cells and, in some species, enterochromaffin cells. The various endocrine cell types can be distinguished on the basis of their characteristic cytoplasmic granules and vesicles. The ECL cel...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410050707
更新日期：1996-12-01 00:00:00
abstract：:Methods for isolation and culture of microvascular endothelial cells of the inner ear were devised to provide an in-vitro system for studying endothelial functions in this tissue. Capillaries from the stria vascularis and spiral ligament were treated enzymatically to free them from surrounding tissue. Contamination by...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00214566
更新日期：1985-01-01 00:00:00
abstract：:Large granular lymphocytes (LGL) comprise a natural defense system in the liver and exert an inhibitory effect on tumor cell metastasis. In order to demonstrate the maturation of LGL in the liver from the morphological aspect, we evaluated electron-microscopically the frequency of 0.2 micron vesicles (rod-cored and "e...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00354799
更新日期：1994-04-01 00:00:00
