Abstract：
:In solid body tissues, environmental biomechanics is indispensable for tissue homeostasis. While characteristics of homeostasis include morphogenesis, proliferation and differentiation, the influences through biomechanics in corneal keratinocytes are poorly understood. Here we show for the first time that corneal keratinocytes, established in a defined biomechanical microenvironment of micropatterned soft pillars, exhibit favoritism of late and terminal differentiation at large pillar patterns of 11 μm with matched small 5 μm arrays. At 11 μm, epithelial cells expressed decreased levels of early differentiation marker cytokeratin 19 (KRT19), which was antagonized by an increase in biomarkers of late and terminal differentiation, i.e. cytokeratin 12 (KRT12), involucrin and filaggrin. Keratinocytes showed proper morphogenesis on 5 μm arrays, whereas 11 μm yielded in morphological disorders. While the propensity of keratinocyte proliferation appeared attenuated at large pillar patterns, stem cell marker ABCG2 was weak though homogeneous at 5 μm, but strong at 11 μm. Thus, corneal keratinocytes reveal interference of biomarker expression, morphogenesis and proliferation, which are at least in part characteristics of tissue homeostasis by mechanisms, depending on environmental biomechanics of micropattern-allocated cell adhesion points in vitro.
journal_name
Eur J Cell Bioljournal_title
European journal of cell biologyauthors
Eberwein P,Steinberg T,Schulz S,Zimmermann D,Accardi R,Beck D,Reinhard T,Tomakidi Pdoi
10.1016/j.ejcb.2011.08.005subject
Has Abstractpub_date
2011-12-01 00:00:00pages
1029-40issue
12eissn
0171-9335issn
1618-1298pii
S0171-9335(11)00170-1journal_volume
90pub_type
杂志文章abstract：:Conventional fixation with glutaraldehyde fixatives at pH 7.4 did not preserve/promote thick filaments in Bufo smooth muscle. However, if pH was lowered to 6.0, thick filaments were present and addition of dimethyl sulfoxide (DMSO) led to a greater number of thick filaments. Stretch alone had little effect on the pres...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1979-06-01 00:00:00
abstract：:Exocytosis is mediated by high-affinity interactions between different SNARE proteins. The existence of several variants of each SNARE protein suggests that the specificity of fusion may be directed by unique combination of SNARE family members. We examined if two alternatively spliced variants of synaptosomal-associa...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1078/0171-9335-00106
更新日期：2000-11-01 00:00:00
abstract：:We have used plant root tips frozen under high pressure in conjunction with freeze-fracture electron microscopy a) to evaluate the quality of freezing of unfixed, non-cryoprotected tissues obtainable with this method, b) to examine the structure of cells frozen under high pressure, c) to evaluate the usefulness of hig...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1988-04-01 00:00:00
abstract：:The microtubule-associated protein 2 (MAP2) and its juvenile splicing variant MAP2c contain a phosphorylation site at Ser136 which is part of a Ser-Pro motif. This site lies within the N-terminal region common to MAP2b and MAP2c. It has been mapped by site-directed mutagenesis of recombinant MAP2c and by a monoclonal ...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1994-06-01 00:00:00
abstract：:The entry of sporozoites of Theileria parva into bovine lymphoid cells in vitro was studied with the electron microscope. Endocytosis is completed in less than 10 min. No local mobilization of actin or other cytoskeletal elements is detected in the cytoplasm of the cell being invaded and no engulfing pseudopods are fo...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1982-04-01 00:00:00
abstract：:It has only recently been recognized that intermediate filaments (IFs) and their assembly intermediates are highly motile cytoskeletal components with cell-type- and isotype-specific characteristics. To elucidate the cell-type-independent contribution of actin filaments and microtubules to these motile properties, flu...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1016/j.ejcb.2004.12.004
更新日期：2005-03-01 00:00:00
abstract：:Rabbit antisera against homogeneous rat liver thioredoxin and thioredoxin reductase (NADPH-oxidized thioredoxin oxidoreductase, E.C. 1.6.4.5) were prepared and used for immunohistochemical analysis in adult rats. Immunoreactive thioredoxin and thioredoxin reductase were widely distributed in tissues and organs, but va...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1985-07-01 00:00:00
abstract：:Embryonic stem (ES) cells are omnipotent; they can differentiate into every cell type of the body. The development of culture conditions that allow their differentiation has made it conceivable to produce large numbers of cells with lineage-specific characteristics in vitro. Here, we describe a method by which murine ...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1016/j.ejcb.2007.07.001
更新日期：2007-12-01 00:00:00
abstract：:Tubular aggregates are specific subcellular structures that appear in skeletal muscle fibres under different pathological conditions. The origin of the tubular aggregates is generally ascribed to proliferating membranes of sarcoplasmic reticulum. There are, however, histochemical indications for the presence of mitoch...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1078/0171-9335-00230
更新日期：2002-02-01 00:00:00
abstract：:In Drosophila embryos, the dorsal gene, a member of the rel family of transcription factors, is a maternal gene required for dorsal/ventral axis specification and mesoderm and neural migration and differentiation. In this report, the presence and distribution of Xrel-1 protein, a Xenopus homologue of the rel family of...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1994-04-01 00:00:00
abstract：:Chlorpromazine (CPZ) at minimally effective concentrations accumulates mammalian cells in mitosis without lethal effects on the cells. Star-metaphase morphology similar to effects seen with classical antimitotic compounds probably results from the preferential action of CPZ on a specific class of microtubules--the pol...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1983-09-01 00:00:00
abstract：:Human peripheral blood monocytes were obtained in very pure preparations by using buoyant density gradient centrifugation followed by velocity sedimentation. We introduced several modifications in the experimental procedure in order to take advantage of the minimal differences in cell density and size between monocyte...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1986-04-01 00:00:00
abstract：:It was previously shown that cultured mouse peritoneal macrophages ingest anionic derivatives of horseradish peroxidase (HRP) and ferritin by fluid-phase endocytosis and accumulate them in lysosomes. Cationic derivatives were taken up by adsorptive endocytosis and transported to lysosomes but subsequently appeared als...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1983-07-01 00:00:00
abstract：:The platinum-carbon replica technique was applied to rat hepatocyte monolayers to visualize the distribution of the receptor responsible for the clearance of asialoglycoproteins. In a first series of experiments, hepatocytes were mildly fixed, either immediately after transfer to 4 degrees C, or after up to 24 h of in...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1993-02-01 00:00:00
abstract：:The interaction of daunomycin (DAU), an anthracyclinic antibiotic employed as antitumoral agent, with microtubules, has been investigated by cytochemical and morphological methods on a human melanoma cell line (H14). Results obtained indicated that DAU was able to modulate the microtubule reassembly in cells treated w...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1991-04-01 00:00:00
abstract：:Storage and release of proteins from granules forms the basis of cellular functions as diverse as cell mediated cytotoxicity, neuronal communication, activation of muscle fibres, and release of hormones or digestive enzymes from endocrine and exocrine glands, such as the pancreas. Serglycin is the major intracellular ...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1016/j.ejcb.2009.03.002
更新日期：2009-08-01 00:00:00
abstract：:We have measured the rate of secretion in vitro of individual rat exocrine pancreatic enzymes and proenzymes from cells in pancreatic lobules of control animals and animals subjected to 24 h optimal hormonal prestimulation with cerulein, in vivo. With the controls secreted proteins were first detectable at 20 to 25 mi...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1991-02-01 00:00:00
abstract：:Diaphanous-related formins (DRFs) drive the nucleation and elongation of linear actin filaments downstream of Rho GTPase signalling pathways. Dictyostelium formin C (ForC) resembles a DRF, except that it lacks a genuine formin homology domain 1 (FH1), raising the questions whether or not ForC can nucleate and elongate...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1016/j.ejcb.2013.07.001
更新日期：2013-06-01 00:00:00
abstract：:Platelets are involved in life-sustaining processes such as hemostasis, wound healing, atherothrombosis and angiogenesis. Mechanical trauma to blood vessels causes platelet activation resulting in their adherence and clot formation at the damaged site, culminating in clot retraction and tissue repair. Two of the major...
journal_title：European journal of cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ejcb.2015.01.001
更新日期：2015-03-01 00:00:00
abstract：:Extraovarian estrogen production is localized mainly in stromal vascular cells from adipose tissue, which contain the aromatase activity necessary for the conversion of androgens to estrogens. Induction of aromatase activity in these cells by glucocorticoids occurs only in the presence of a serum factor, the propertie...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1994-02-01 00:00:00
abstract：:Perfused Chara cells capable of resuming ATP-dependent cytoplasmic streaming in low free Ca++ solutions have been examined by electron microscopy for myosin-like filaments. Filaments 44 nm in diameter and up to 3 micron in length have been found associated with the endoplasmic reticulum that along with mitochondria, m...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1979-12-01 00:00:00
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journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1016/j.ejcb.2017.02.004
更新日期：2017-03-01 00:00:00
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journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1982-02-01 00:00:00
abstract：:Signal transduction elements, including protein kinase C, have been identified in mammalian spermatozoa. In order to evaluate the pattern of expression and the subcellular localization of nine different protein kinase C isoforms in the course of spermatogenesis, we utilized quantitative electron microscopy immunocytoc...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1997-02-01 00:00:00
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journal_title：European journal of cell biology
pub_type： 杂志文章,评审
doi：10.1016/j.ejcb.2013.10.003
更新日期：2014-01-01 00:00:00
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journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1078/0171-9335-00112
更新日期：2000-11-01 00:00:00
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journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1984-07-01 00:00:00
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journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1984-09-01 00:00:00
abstract：:SNAREs are compartmentally specific membrane proteins required for intracellular membrane fusion. Homologues of the Saccharomyces cerevisiae protein Sec1p interact with, and are likely to be involved in regulation of, the syntaxin family of SNAREs. In yeast there are 7 functionally distinct syntaxins but only four cle...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：10.1016/s0171-9335(98)80084-8
更新日期：1998-12-01 00:00:00
abstract：:The sites of calcium-dependent dibasic endoprotease (Kex2; yscF) activity have been ultracytochemically localized in exponential cultures of haploid (alpha) wild-type strain of Saccharomyces cerevisiae, in its pep4-3 mutant and in the kex2 mutant. The gently prefixed cells were thoroughly washed and incubated in a buf...
journal_title：European journal of cell biology
pub_type： 杂志文章
doi：
更新日期：1994-02-01 00:00:00
