Abstract:
:External mechanical loading of cells aligns cytoskeletal stress fibres in the direction of principle strains and localises paxillin to the mechanosensing region. If the osteocyte cell body can indeed directly sense matrix strains, then cytoskeletal alignment and distribution of paxillin in osteocytes in situ will bear alignment to the different mechanical loading patterns in fibulae and calvariae. We used confocal microscopy to visualise the immunofluorescence-labelled actin cytoskeleton in viable osteocytes and paxillin distribution in fixated osteocytes in situ. In fibular osteocyte cell bodies, actin cytoskeleton and nuclei were elongated and aligned parallel to the principal (longitudinal) mechanical loading direction. Paxillin was localised to the 'poles' of elongated osteocyte cell bodies. In calvarial osteocyte cell bodies, actin cytoskeleton and nuclei were relatively more round. Paxillin was distributed evenly in the osteocyte cell bodies. Thus in osteocyte cell bodies in situ, the external mechanical loading pattern likely determines the orientation of the actin cytoskeleton, and focal adhesions mediate direct mechanosensation of matrix strains.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Vatsa A,Semeins CM,Smit TH,Klein-Nulend Jdoi
10.1016/j.bbrc.2007.12.174subject
Has Abstractpub_date
2008-12-26 00:00:00pages
1019-24issue
4eissn
0006-291Xissn
1090-2104pii
S0006-291X(07)02814-8journal_volume
377pub_type
杂志文章abstract::E-cadherin plays a mechanical role in mediating cell-cell interactions and maintaining epithelial tissue integrity, and the loss of E-cadherin function has been implicated in cancer progression and metastasis. Syndecan-2, a cell-surface heparan sulfate proteoglycan, is upregulated during the development of colon cance...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2016.06.019
更新日期:2016-08-12 00:00:00
abstract::Hypothermia followed by slow rewarming is neuroprotective for ischemic stroke. However, slow rewarming causes patients' longer stay in intensive care unit and increases the risk of hypothermic complications. Hypothermia followed by rapid rewarming (HTRR) is more convenient; but it exacerbates intracranial hypertension...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2016.04.095
更新日期:2016-05-20 00:00:00
abstract::Plants possess several defense mechanisms against pathogenic attack. One of these defenses is the use of protease inhibitor proteins, which interfere in the development and growth of pathogens. Sugarcane productivity can be impacted by the plant's susceptibility to fungal diseases that result in production losses. A r...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(02)02046-6
更新日期:2002-09-06 00:00:00
abstract::Exposure of mesangial cells to ionic Cd(2+) induces the proto-oncogene c-fos, while activating both Erk and stress-activated protein kinase (SAPK) MAP kinase pathways. While we have previously used a pharmacological inhibitor of Erk activation to implicate involvement of this pathway in the induction of c-fos by Cd(2+...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2000.3009
更新日期:2000-07-05 00:00:00
abstract::Peptide B represents one of the most highly conserved sequences in proenkephalin. To investigate the potential presence of this peptide in the mammalian nervous system, an antiserum raised to this peptide was used to measure the distribution and molecular weight forms of immunoreactive Peptide B in the rat brain. Pept...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(86)80280-7
更新日期:1986-09-30 00:00:00
abstract::Oxysterols are 27-carbon oxidation products of cholesterol metabolism. Oxysterols possess several biological actions, including the promotion of cell death. Here, we examined the ability of several oxysterols to induce short-term death in cancerous (human breast cancer and mouse skin melanoma cells) and non-cancerous ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2018.10.008
更新日期:2018-11-10 00:00:00
abstract::The recognition and removal of interstrand cross-links is perhaps the least understood of all repair pathways in eukaryotic cells. We have shown previously that uncoupling of cross-links occurs in mammalian cell extracts and have identified a number of factors that mediate this process. However, we have not observed c...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.08.042
更新日期:2005-10-14 00:00:00
abstract::The genome of a novel foot-and-mouth disease virus, HKN/2002, was 8104 nucleotides (nt) in length (excluding the poly(C) tract and poly(A) tail) and was composed of a 1042-nt 5'-untranslated region (UTR), a 6966-nt open reading frame, and a 93-nt 3'-UTR. Genome sequences of HKN/2002 and other known FMDV strains were c...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2004.08.086
更新日期:2004-10-08 00:00:00
abstract::Effects of growth hormone on morphology and cytoskeletal protein expression were examined in 3T3-F442A preadipocytes in serum-free medium. Between 2 and 5 days of culture 2 nM methionyl human growth hormone converted 3T3-F442A cells from a flat fibroblastic morphology to a rounded form with numerous membrane convoluti...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(89)92306-1
更新日期:1989-09-15 00:00:00
abstract::The novel synthetic retinoid, CD437, shows potent anti-tumor activity in a range of different cancer cell lines and now serves as a prototype for development of new retinoid related molecules (RRMs). The purpose of this study was to examine the effect and cellular targets of CD437 in the human metastatic melanoma cell...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2012.03.023
更新日期:2012-04-13 00:00:00
abstract::In neuroblastoma N1E 115 cells, carbachol, histamine and PGE1 elevated cyclic GMP content and, induced the efflux of preloaded 45Ca2+, the release of membrane-bound Ca2+ measured by fluorescent CTC, and the increase in [Ca2+]i as measured by Quin 2 fluorescence. The time course of the responses, the absolute requireme...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(84)90479-0
更新日期:1984-07-18 00:00:00
abstract::To evaluate the immunomodulatory effects of histamine in vivo, we analyzed an experimental syngenic tumor model using a colon adenocarcinoma cell line, CT-26, in Balb/c mice. In this model, distinct tumor growth was observed around 6 days after inoculation. Daily administration of cimetidine (0.12 mg/kg/day) significa...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2001.4487
更新日期:2001-03-01 00:00:00
abstract::The lipid phosphatase SHIP2 (SH2 domain containing inositol 5-phosphatase 2) has recently been shown to be a potent negative regulator of insulin signaling and insulin sensitivity in vivo. We show here that SHIP2 is expressed in Chinese hamster ovary cells overexpressing the insulin receptor (CHO-IR cells) and tyrosin...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2001.4639
更新日期:2001-04-06 00:00:00
abstract::The metalated forms of metallothionein are well studied (particularly Zn-MT, Cu-MT and Cd-MT), but almost nothing is known about the chemical and structural properties of apometallothioneins despite their importance in initial metalation and subsequent demetalation. Electrospray ionization mass spectrometry was used t...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2012.07.141
更新日期:2012-08-24 00:00:00
abstract::Custom-designed zinc finger nucleases (ZFNs) are becoming powerful tools in gene targeting-the process of replacing a gene within a genome by homologous recombination. Here, we have studied the DNA cleavage by one such ZFN, DeltaQNK-FN, in order to gain insight into how ZFNs cleave DNA and how two inverted sites promo...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.07.021
更新日期:2005-09-09 00:00:00
abstract::The von Hippel-Lindau (VHL) is a known tumor suppressor that binds to alpha-subunits of hypoxia-inducible factors and induces ubiquitin-mediated degradation of the protein in an oxygen-dependent manner. VHL is also involved in the regulation of tumor angiogenesis, glycolysis, cell cycle regulation, and apoptosis. In t...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2004.06.042
更新日期:2004-07-30 00:00:00
abstract:PURPOSE:Kirsten rat sarcoma (KRAS) gene mutations occur early in the progression of colorectal adenoma to carcinoma. The mutation status of the KRAS gene determines the benefits of molecular targeting drugs in patients with advanced colorectal cancer, although many methods are available to detect such mutations. The pu...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2010.03.167
更新日期:2010-04-23 00:00:00
abstract::Arsenic trioxide (ATO) is remarkably effective for treating acute promyelocytic leukemia. Here, we find that ATO treatment of NB4 and K562 leukemic cells induces activation of ASK1. ASK1 activation was induced most significantly at low concentrations of ATO, where G2/M arrest but not apoptosis was induced. On the othe...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2007.02.064
更新日期:2007-04-20 00:00:00
abstract::Secreted gelatinase from human neutrophils was purified as a 94 kDa polypeptide. Gelatinolytic and type IV collagenolytic activities of the purified protein were measured and compared. Immunoglobulins purified from antisera raised against gelatinase inhibited both the gelatinase and type IV collagenase activities. The...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1993.1212
更新日期:1993-02-26 00:00:00
abstract::2,3-Oxidosqualene-lanosterol cyclase is an intrinsic microsomal protein which can be solubilized by ionic (deoxycholate) and nonionic (emulphogene) detergents with good yields. The hog-liver microsomal cyclase was purified approximately 140-fold by chromatography on DEAE-cellulose and hydroxylapatite. The partially pu...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(88)80515-1
更新日期:1988-03-30 00:00:00
abstract::Ras signaling is often dysregulated and plays essential roles for the maintenance of glioblastoma. The proper function of Ras depends largely on the appropriate post-translational modification termed prenylation. Targeting protein prenylation therefore represents an alternative therapeutic strategy in glioblastoma. In...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2017.05.147
更新日期:2017-07-29 00:00:00
abstract::The aim of this study was to investigate the response to and the physiological consequences of copper-mediated cross-linking of S100A2 and S100A4, two members of the S100 family of EF-hand calcium-binding proteins. As demonstrated by electrophoresis and mass spectrometry techniques S100A2 and S100A4 show formation of ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2011.08.132
更新日期:2011-09-30 00:00:00
abstract::The primary structure of human selenium-dependent phospholipid hydroperoxide glutathione peroxidase (GPX4) was determined by genomic cloning. The gene structure of GPX4 spans only 2.8 kb and consists of 7 exons. The coding sequence resides on all 7 exons, and the mitochondrial leader sequence is contained entirely wit...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1998.9086
更新日期:1998-08-10 00:00:00
abstract::Radiation induced fibrosis occurs following a therapeutic or accidental radiation exposure in normal tissues. Tissue fibrosis is the excessive accumulation of collagen and other extracellular matrix components. This study investigated how ionizing radiation affects the expression level and signal pathway of type I col...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2012.01.039
更新日期:2012-02-17 00:00:00
abstract::RNAs isolated from normal and spontaneously hypertensive (SHR) rat heart tissues were examined by direct hybridization assay using cloned DNA probes containing chicken cardiac myosin light chain and heavy chain specific cDNA sequences. In 7 weeks old SHR heart, the level of mRNA hybridizable to these probes is the sam...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(85)91205-7
更新日期:1985-10-30 00:00:00
abstract::Fractionation of rat uterine cells incubated at 22 degrees C with 0.2 nM [3H]-estradiol-17 beta (E2 beta) was performed to analyze the subcellular distribution of internalized hormone. The postnuclear supernatant of homogenates was resolved in Percoll density gradients into six major fractions defined by enzyme marker...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(84)90383-8
更新日期:1984-08-30 00:00:00
abstract::miRNA is increasingly being recognized as a key regulator of metabolism in animals. A wealth of evidence has suggested that miRNA mainly binds 3' UTR of mRNA and modulates the cell activities via repressing the mRNA translation. However, as the translation initiates at 5' UTR, cis elements like upstream open reading f...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2014.08.050
更新日期:2014-09-12 00:00:00
abstract::Small non-coding RNAs, microRNAs (miRNA), inhibit the translation or accelerate the degradation of message RNA (mRNA) by targeting the 3'-untranslated region (3'-UTR) in regulating growth and survival through gene suppression. Deregulated miRNA expression contributes to disease progression in several cancers types, in...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2013.08.042
更新日期:2013-09-13 00:00:00
abstract::Cells have developed compensatory mechanisms to restore cell volume, and the ability to resist osmotic swelling or shrinkage parallels their resistance to necrosis or apoptosis. There are several mechanisms by which cells adapt to hyposmotic stress including that of regulatory volume decrease. In ischemia and reperfus...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2006.10.004
更新日期:2006-12-01 00:00:00
abstract::The mechanism by which lithium (Li(+)) inhibits the protein kinase glycogen synthase kinase-3 (GSK-3) is unknown. Here, we demonstrate that Li(+) is a competitive inhibitor of GSK-3 with respect to magnesium (Mg(2+)), but not to substrate or ATP. This mode of inhibition is conserved between mammalian and Dictyostelium...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2000.4169
更新日期:2001-01-26 00:00:00