Abstract:
:Cells of the sponge Microciona prolifera dissociated in Ca,Mg-free sea water reaggregate upon addition of Ca, an observation classically attributed to the requirement for Ca of a species-specific aggregation factor. We now report that, unexpectedly, extracellular Ca is not required during aggregation; brief Ca pulses (1-3 sec) terminated by excess EDTA suffice to prepare the cells for aggregation by Ca ionophores (e.g. A23187). We also show that phorbol myristate acetate (PMA) promotes aggregation of pulse-prepared cells. Since PMA and A23187 act synergistically in Microciona, the "twin signal" hypothesis, signalling by Ca and protein kinase C in parallel, is validated in this primitive animal.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Dunham P,Weissmann Gdoi
10.1016/0006-291x(86)90394-3subject
Has Abstractpub_date
1986-02-13 00:00:00pages
1319-26issue
3eissn
0006-291Xissn
1090-2104pii
0006-291X(86)90394-3journal_volume
134pub_type
杂志文章abstract::Partially purified trehalose phosphorylase (EC 2.4.1.64) from Euglena gracilis SM-ZK was inhibited by fructose 2,6-bisphosphate in both synthetic and degradative directions. Ki value for trehalose phosphorolysis was 1.2 microM and that for trehalose synthesis was 0.5 microM. Functions of fructose 2,6-bisphosphate in E...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(84)91176-8
更新日期:1984-08-16 00:00:00
abstract::The induction of human BiP/GRP78 and GAPDH protein genes by the calcium ionophore A23187 was determined. Steady-state levels of mRNA for both the glucose starvation-responsive BiP/GRP78 gene and the glucose-responsive GAPDH gene were dramatically induced in a variety of human cells. There is a homologous palindromatic...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(90)91411-k
更新日期:1990-08-31 00:00:00
abstract::An alternative molecular biology strategy is needed to characterize cholinephosphotransferase (CPT) gene because of the complexity of the problem associated with the solubilization of the membrane-bound enzyme without denaturation. We have synthesized five heterologous oligonucleotide probes based on the published yea...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1997.7862
更新日期:1997-12-18 00:00:00
abstract::The effects of cyclosporin A (CSP) on tumor necrosis factor-alpha (TNF-alpha) RNA levels and protein production in human B cells and a B cell line were studied. The ability of CSP to block induction of RNA was compared to its inhibition of protein production in response to anti-IgM, phorbol ester (PMA) and platelet-ac...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1994.2470
更新日期:1994-10-14 00:00:00
abstract::Treatment of newborn murine epidermal cells with phospholipase C results in the generation of a chemiluminescence response similar to that previously described for phorbol ester tumor promoters. Based on inhibitor studies, the oxidant, believed to be superoxide anion, is most likely generated from lipoxygenase metabol...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(85)90204-9
更新日期:1985-09-30 00:00:00
abstract::Fish oil, which contains omega-3 fatty acids mainly in the form of triglycerides, has benefits for reducing breast cancer risk, similar to tamoxifen action. However, it remains to be elucidated whether the combination of omega-3 free fatty acid (ω-3FFA) with tamoxifen leads to improved treatment in breast cancer. In t...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2015.02.103
更新日期:2015-04-03 00:00:00
abstract::Prostasin is a glycosylphosphatidylinositol (GPI)-anchored serine protease and a suppressor of tumor cell invasion. We recently reported that the human prostasin gene is up-regulated by the transcription factor sterol regulatory element-binding protein-2 (SREBP-2). In the present study, we identified multiple SREBP-2 ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2006.06.049
更新日期:2006-08-11 00:00:00
abstract::Intercellular spaces between adjacent mucosal epithelial cells are sealed by tight junctions (TJs) that prevent the free movement of solutes across the epithelium. Claudins (CLs), a family of 27 integral membrane proteins, are essential components for TJ seals. We previously used a CL-3/-4 binder, the C-terminal fragm...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2012.05.060
更新日期:2012-06-29 00:00:00
abstract::Traumatic spinal cord injury (SCI) is a major cause of death and lifelong disability in the world. However, the pathological process of SCI has not been fully understood. F-box/WD repeat-containing protein 5 (FBXW5), a subunit of the SCF-type E3 ubiquitin ligase complex, plays an essential role in regulating various p...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2019.04.086
更新日期:2019-06-25 00:00:00
abstract::Neuregulin1 (NRG1) is a growth factor that signals through the interaction of the epidermal growth factor (EGF)-like domain with ErbB receptors. An immunoglobulin (Ig)-like domain is contained together with EGF-like domain in the ectodomain of some isoforms generated by alternative splicing, but its role in NRG1 signa...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2006.09.028
更新日期:2006-11-17 00:00:00
abstract::ATP is the universal energy currency for all cells but has cellular concentrations of 2-12 mM, much higher than required for its classic functions. RNA-recognition motif (RRM) constitutes one of the most abundant domains in eukaryotes and most heterogeneous nuclear ribonucleoproteins (hnRNP) contain RRM domains which ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2019.11.088
更新日期:2020-01-29 00:00:00
abstract::Recent progress in the field of mesenchymal stem cell (MSC) biology has enabled their clinical application. In the autologous cell transplantation therapy, the source of MSCs are quite important to reduce patients' physical burden. In this study, we isolated MSCs from the synovial fluid (SF) and synovial membrane (Syn...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2019.12.068
更新日期:2020-03-05 00:00:00
abstract::We have recently reported that synthetic peptide amides corresponding to regions of human FSH beta-subunit, hFSH-beta-(33-53) and hFSH-beta-(81-95), bind to receptor and stimulate estradiol biosynthesis by cultured rat Sertoli cells. Because of experimental difficulties caused by the presence of free sulfhydryl groups...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1993.1010
更新日期:1993-01-15 00:00:00
abstract::A biotin-polyethylene glycol (PEG)-epidermal growth factor (EGF) conjugate was immobilized onto the surface of avidin-modified adenovirus (ADV-Avi) via biotin-avidin interaction to deliver ADV specifically to EGF receptor over-expressing cancer cells. ADV-Avi/biotin-PEG-EGF complexes showed greatly enhanced intracellu...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2007.12.045
更新日期:2008-02-15 00:00:00
abstract::The relation between autophagy and Chlamydia trachomatis infection remain inconclusive. In order to further understand the role of autophagy in C. trachomatis-infected cells. Atg5 silenced HeLa229 cell line was used to establish an autophagy inhibition C. trachomatis infection model. The results suggested that Atg5 se...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2019.09.132
更新日期:2019-11-26 00:00:00
abstract::Several human and rodent tumor cell lines were examined for the presence of integrin mRNAs by dot- and Northern-blot analysis. All tumor cells tested expressed mRNAs for alpha 5, alpha IIb, beta 1 and beta 3. The mRNA of beta 2 integrin was not detectable and that of alpha V integrin was found only in certain cells. N...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(91)90896-f
更新日期:1991-04-15 00:00:00
abstract::Hepatocyte growth factor (HGF), originally identified as a potent mitogen for mature parenchymal hepatocytes, is a hepatotrophic factor involved in liver regeneration and is even essential for development of the liver. We report here that human recombinant HGF at a very low concentration and given intraportaly stimula...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1996.0347
更新日期:1996-03-07 00:00:00
abstract::In this study, we demonstrate that in addition to T lymphocytes, human naïve eosinophils and the differentiated eosinophil-like cell line, AML14.3D10 express CCR8 and respond to CCL1 through CCR8 engagement. The responsiveness of cells was dependent on maturation stage, since CCL1 induced pronounced chemotaxis only in...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2011.03.097
更新日期:2011-04-22 00:00:00
abstract::The repair of point mutations in hprt gene by single-stranded oligonucleotides represents a model to test targeted nucleotide exchange. We studied the concurrent nucleotide exchange of two or three nucleotides in the hprt deficient hamster cell line V79-151. The used oligonucleotides resulted in mismatches at two (151...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2004.07.062
更新日期:2004-09-03 00:00:00
abstract::A rat gene with testis-specific expression coinciding with spermatogenesis was cloned by differential display. This spermatogenesis-related factor-1 (SRF-1) gene was not expressed in other organs. Testicular expression was detected from 5 weeks of age and increased up to 15 weeks; this level of expression was maintain...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2001.6048
更新日期:2001-12-14 00:00:00
abstract::The 3(')-->5(')-exonucleolytic activity of human apurinic/apyrimidinic endonuclease 1 (APE1) on mispaired DNA at the 3(')-termini of recessed, nicked or gapped DNA molecules was analyzed and compared with the primary endonucleolytic activity. We found that under reaction conditions optimal for AP endonuclease activity...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(02)02808-5
更新日期:2003-01-03 00:00:00
abstract::The promoter of the GATA-4 gene was analyzed in P19CL6 cells. A 124bp segment containing conserved two GC-boxes and E-box was essential for the basal promoter activity, as determined with a transient luciferase reporter gene assay. However, an extended 1312 bp reporter construct but not the 124 bp segment, when ligate...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2011.08.036
更新日期:2011-09-23 00:00:00
abstract::Tumor necrosis factor (TNF)alpha is considered to play a key pathogenetic role in inflammatory bowel diseases. In this study we analyzed the mechanisms by which TNFalpha induces intestinal epithelial cell apoptosis. TNFalpha alone, and more potently in combination with IFNgamma, induced a high degree of IEC-6 cell apo...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1999.0734
更新日期:1999-06-24 00:00:00
abstract::Lafora disease, a progressive myoclonus epilepsy, is an autosomal recessive disease caused in approximately 80% of cases by mutation of the EPM2A gene, which encodes a dual specificity protein phosphatase called laforin. In addition to its phosphatase domain, laforin contains an N-terminal carbohydrate-binding domain ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2004.10.083
更新日期:2004-12-17 00:00:00
abstract::Hepcidin is a main regulator of iron metabolism, of which abnormal expression affects intestinal absorption and reticuloendothelial sequestration of iron by interacting with ferroportin. It is also noted that abnormal iron accumulation is one of the key factors to facilitate promotion and progression of cancer includi...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2016.05.153
更新日期:2016-08-05 00:00:00
abstract::Silver nanoparticles (AgNPs) are one of the most commonly used nanomaterials; however, it remains unclear whether AgNPs induce neurotoxicity. Here, we investigated the potential neurological effects of AgNPs and the neuroprotective effect of vitamin E (VE). We found that intranasal instillation of AgNPs in neonatal Sp...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2015.01.130
更新日期:2015-03-06 00:00:00
abstract::Mental status changes are usually associated with septic shock. However, the molecular mechanisms underlying physiological changes of the central nervous system (CNS) remain speculative. We have investigated the expression of interleukin (IL)-12, one of the central cytokines in inflammatory and immune responses, in th...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1996.1038
更新日期:1996-07-16 00:00:00
abstract::Several protein quality control systems in bacteria and/or mitochondrial matrix from lower eukaryotes are absent in higher eukaryotes. These are transfer-messenger RNA (tmRNA), The N-end rule ATP-dependent protease ClpAP, and two more ATP-dependent proteases, HslUV and ClpXP (in yeast). The lost proteases resemble the...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2016.04.150
更新日期:2016-06-17 00:00:00
abstract::The present study demonstrates that exposure of human thyroid slices to thyrotropin causes an increase in phospholipid metabolism as measured by an increased incorporation of myo-2-[3H]-inositol into phosphatidylinositol, the generation of InsP3 and formation of GInsP as well as metabolism of phosphatidylcholine and p...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1994.1830
更新日期:1994-06-30 00:00:00
abstract::The patch clamp technique applied to canine atrial myocyte sarcolemma, showed that 2 types of K+ channels were differentially affected by Ach. The 2 channel types differed in conductance, responses to [Ca++], and sensitivity to membrane potential. Addition of Ach (10(-9) M to 10(-6) M) to pipette solutions increased o...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(87)91519-1
更新日期:1987-02-13 00:00:00