Abstract：
:The therapeutic potency of delivered mesenchymal stem cells (MSCs) in tissue engineering applications may be improved by priming cells toward a differentiated state via coculture with native, differentiated cells prior to implantation; however, there is a lack of understanding in what may be the most efficacious method. The objective of this study was to investigate the role of negatively-charged heparin in priming hydrogel-encapsulated MSCs toward the osteoblastic lineage during coculture with a monolayer of osteoblasts in the absence of dexamethasone. MSCs encapsulated with higher amounts of heparin and cocultured with osteoblasts exhibited an over 36-fold increase in alkaline phosphatase activity and 13-fold increase in calcium accumulation by day 21, compared to MSCs cocultured with MSCs at the same heparin content. Moreover, hydrogels with higher amounts of heparin and cocultured with osteoblasts exhibited enhanced mineralization on the edges, suggesting that heparin may be important in sequestering osteoblast-secreted soluble factors, particularly on the surfaces of hydrogels. The ability of heparin to selectively interact with soluble positively-charged proteins from the surroundings was confirmed through protein labeling and microscopy. These results suggest that heparin-containing hydrogels as part of a coculture system can be utilized as a versatile platform to study and enhance priming of MSCs toward various cell types for a wide variety of regenerative medicine-based therapies.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Seto SP,Casas ME,Temenoff JSdoi
10.1007/s00441-011-1265-8subject
Has Abstractpub_date
2012-03-01 00:00:00pages
589-601issue
3eissn
0302-766Xissn
1432-0878journal_volume
347pub_type
杂志文章abstract：:The number, size and structure of tendon organs were examined in leg muscles of the rat 3-19 weeks after de-efferentation performed in newborn animals by removal of the lumbosacral spinal cord. After this operation, tendon organs differentiated and grew in disused muscles and were innervated by primary sensory neurons...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00214645
更新日期：1985-01-01 00:00:00
abstract：:The diabetes (db/db) mutation (leptin-receptor defect) induces a hyperglycemic-hyperinsulinemic endometabolic environment that promotes hypercytolipidemic ovarian involution in C57BL/KsJ mice, resulting in reproductive sterility and eventual organoatrophy. The effectiveness of low-dose (1.0 microg/sc/3.5 day intervals...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-004-0967-6
更新日期：2004-11-01 00:00:00
abstract：:The ultrastructure and distribution of adherens junctions in the intact adult lens of human, chicken, dove, rat, and rainbow trout were studied with thin-section electron microscopy, using an improved fixation containing a mixture of glutaraldehyde, lysine, and tannic acid. The nature of adherens junctions in the fibe...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00220014
更新日期：1988-10-01 00:00:00
abstract：:Testicular interstitial cells, from rats aged 35 days, were dispersed with collagenase and separated through Percoll into 5 fractions (I-V); fraction I being the least dense. Measurement of basal testosterone production, histo-enzymological staining for 3 beta-hydroxysteroid dehydrogenase activity and electron microsc...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00222304
更新日期：1988-08-01 00:00:00
abstract：:Autoradiograms of mouse pituitaries were prepared 30 min after injection of 3H-dexamethasone (3HDM), 3H-corticosterone (3HB) and 3H-cortexolone (3HS) either alone or in the presence of competing unlabelled steroids. 3H-dexamethasone accumulated in cell nuclei of both the pars distalis and the pars nervosa but not in t...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00236423
更新日期：1979-08-01 00:00:00
abstract：:The effects of light and dark on photoreceptors of the brackish-water polychaete annelid Nereis limnicola were studied by electron microscopy. Animals dark-adapted for one or two days exhibited well-formed straight microvilli (rhabdomeres) on the sensory cell processes. Continuous illumination of worms for one or two ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00225427
更新日期：1985-01-01 00:00:00
abstract：:Transforming growth factor-β (TGFβ) is the prototype for a large family of pleiotropic factors that signal via heterotetrameric complexes of type I and type II serine/threonine kinase receptors. Important intracellular mediators of TGFβ signaling are members of the Smad family. Smad2 and 3 are activated by C-terminal ...
journal_title：Cell and tissue research
pub_type： 杂志文章,评审
doi：10.1007/s00441-011-1190-x
更新日期：2012-01-01 00:00:00
abstract：:Immunoreactivity to the polypeptide designated "7B2" recently isolated from human and porcine pituitary glands, appears to be consistently confined to neuroendocrine and endocrine cells in various tissues. In rat gut, immunoreactive 7B2 was found in endocrine-paracrine cells. Highly labeled cells were found in the ant...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00217343
更新日期：1987-09-01 00:00:00
abstract：:The expression of corticosteroids and regional expression 16 (CR16) and neural Wiscott-Aldrich syndrome protein (N-WASP) was studied in the testes of men with idiopathic azoospermia by (1) immunohistochemistry and Western blot to detect the expression of CR16 and N-WASP protein, (2) reverse transcription with the poly...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-011-1159-9
更新日期：2011-06-01 00:00:00
abstract：:Our previous findings have demonstrated that the rat autosomal-recessive mutation, whitish chalk-like teeth (wct), induces enamel defects resembling those of human amelogenesis imperfecta (AI) in continuously growing incisor teeth. The present study clarifies the effect of the wct mutation on the morphogenesis and cal...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-007-0452-0
更新日期：2007-10-01 00:00:00
abstract：:Haemophilic arthropathy is the major cause of disability in patients with haemophilia and, despite prophylaxis with coagulation factor concentrates, some patients still develop articular complications. We evaluate the feasibility of a tissue engineering approach to improve current clinical strategies for cartilage reg...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-016-2408-8
更新日期：2016-10-01 00:00:00
abstract：:Osmotic stimulation activates both estivated and inactivated specimens of Helix pomatia and increases their central arousal. High-pressure liquid chromatography has shown that, during activation, the level of both serotonin and dopamine decreases in the central nervous system (CNS) but increases in the foot and heart,...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-007-0522-3
更新日期：2008-02-01 00:00:00
abstract：:In vitro incubation of autonomic nerves with vinblastine sulphate (1 times 10(-4) M) caused a disappearance of microtubules within 15 min; during the following 15 min paracrystalline arrays appeared within the axons. An increase in the abundance of microfilaments was also observed, but these did not appear to arise fr...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00220136
更新日期：1976-02-25 00:00:00
abstract：:The effect of copulation on the rat coagulating gland (anterior prostate) was studied. At 4 to 6 h after the beginning of copulation the coagulating glands of rats that had produced copulatory plugs were nearly empty of secretion. Ultrastructurally, the coagulating gland has large cisternae of rough endoplasmic reticu...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00221773
更新日期：1977-07-19 00:00:00
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：:We have previously shown that immunoneutralization of transforming growth factor-beta (TGF-beta) in the chick embryo significantly reduces programmed cell death (PCD) in peripheral neurons, spinal cord, and retina. In order to validate these results we have begun to analyze PCD in mice with targeted ablations of the T...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-003-0761-x
更新日期：2003-07-01 00:00:00
abstract：:We used a combined biochemical and histocytochemical approach to study ecto-ATPase in the rat cardiac muscle. The reaction medium employed for histocytochemical detection was optimized in biochemical assays to achieve the highest enzyme activity and lowest inhibition by the capture agent used for visualization of the ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004419900105
更新日期：1999-12-01 00:00:00
abstract：:Cholinergic neurons have been revealed in the enteric nervous system by functional and biochemical studies but not by antibodies that provide excellent localisation of the synthesising enzyme, choline acetyltransferase (ChAT), in the central nervous system. In order to determine whether a newly described peripheral fo...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-002-0652-6
更新日期：2003-01-01 00:00:00
abstract：:Placing the clawed toad Xenopus laevis on a black background stimulates the melanotrope cells in the pars intermedia of the pituitary gland to release proopiomelanocortin (POMC)-derived peptides, including alpha-MSH and N-acetyl-beta-endorphin. In this study three types of secretory granules, electron-dense (approxima...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00314557
更新日期：1993-12-01 00:00:00
abstract：:Cyclooxygenase-2 (COX-2) is a recently discovered isoform of cyclooxygenase that is inducible by various types of inflammatory stimuli. Although this enzyme is considered to play a major role in inflammation processes by catalyzing the production of prostaglandins, the precise location, distribution, and regulation of...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s004410000296
更新日期：2001-02-01 00:00:00
abstract：:The desert locust Schistocerca gregaria is a major agricultural pest in North Africa and the Middle East. As such, it has been intensely studied, in particular with respect to population dynamics, sensory processing, feeding behavior flight and locomotor control, migratory behavior, and its neuroendocrine system. Bein...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-018-2844-8
更新日期：2018-10-01 00:00:00
abstract：:There is general consensus that enteroendocrine cells, EEC, containing the enteric hormone cholecystokinin (CCK) are confined to the small intestine and predominate in the duodenum and jejunum. Contrary to this, EEC that express the gene for CCK have been isolated from the large intestine of the mouse and there is evi...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-017-2612-1
更新日期：2017-08-01 00:00:00
abstract：:Membrane-coating granules of the epithelium of the hamster cheek pouch displayed a lamellated internal structure consisting of alternating thick and thin electron dense bands separated by translucent bands of equal width. The repeat distance of the contents was 8.5 nm +/- sd. 0.7 nm and the thickness of the major elec...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00224374
更新日期：1978-02-24 00:00:00
abstract：:Surface features of the ependymal linings of the fourth ventricle in the fowl were analyzed employing the scanning electron microscope (SEM). On the floor of the median sulcus, each ependymal cell has a solitary cilium, whereas on both sides of the sulcus, cilia are so densely distributed that the details of the under...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00233562
更新日期：1979-03-09 00:00:00
abstract：:Andersen's syndrome (AS) is a rare autosomal disorder that has been defined by the triad of periodic paralysis, cardiac arrhythmia, and developmental anomalies. AS has been directly linked to over 40 different autosomal dominant negative loss-of-function mutations in the KCNJ2 gene, encoding for the tetrameric strong ...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/s00441-017-2696-7
更新日期：2018-02-01 00:00:00
abstract：:Pimozide, a specific blocker of dopaminergic receptors, was injected for 4 or 9 days in freshwater (FW) eels or eels acclimated to sea water (SW) for 10 or 30 days. The daily dose was 100 or 200 microgram/100 g. Melanophore index values increase in FW and in 1 month-SW injected eels. All the treated fish react by a to...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00209272
更新日期：1978-05-29 00:00:00
abstract：:As a companion to an earlier study, the morphometric attributes of stimulated (blast-derived) lymphocytes in mouse axillary lymph nodes have been established using stereological and autoradiographic methods. Blast transformation was induced in vivo with dinitrochlorobenzene (DNCB) and stimulated cells were labelled wi...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00233538
更新日期：1981-01-01 00:00:00
abstract：:The distributions within the coeliac ganglion of different chemically coded subgroups of noradrenaline neurons, and the relationships between these neurons and nerve fibres projecting to the ganglion from the intestine, have been assessed quantitatively by use of an immunohistochemical double-staining method. Noradren...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00218395
更新日期：1986-01-01 00:00:00
abstract：:Notch signaling is evolutionarily conserved from Drosophila to human. It plays critical roles in neural stem cell maintenance and neurogenesis in the embryonic brain as well as in the adult brain. Notch functions greatly depend on careful regulation and cross-talk with other regulatory mechanisms. Deregulation of Notc...
journal_title：Cell and tissue research
pub_type： 杂志文章,评审
doi：10.1007/s00441-017-2641-9
更新日期：2018-01-01 00:00:00
abstract：:The postnatal maturation of regions of the epididymis and intragonadal segment of the deferens duct was studied in the rat by light- and transmission electron microscopy. Maturation of the genital duct starts in the distal cauda epididymidis and ductus deferens after one week of life, and one week later, in the more c...
journal_title：Cell and tissue research
pub_type： 杂志文章
doi：10.1007/BF00215508
更新日期：1987-08-01 00:00:00
