Abstract:
:In the case of a new viral disease outbreak, an immediate development of virus detection kits and vaccines is required. For COVID-19, we established a rapid production procedure for SARS-CoV-2 spike protein (S protein) by using the baculovirus-silkworm expression system. The baculovirus vector-derived S proteins were successfully secreted to silkworm serum, whereas those formed insoluble structure in the larval fat body and the pupal cells. The ectodomain of S protein with the native sequence was cleaved by the host furin-protease, resulting in less recombinant protein production. The S protein modified in furin protease-target site was efficiently secreted to silkworm serum and was purified as oligomers, which showed immunoreactivity for anti-SARS-CoV-2 S2 antibody. By using the direct transfection of recombinant bacmid to silkworms, we achieved the efficient production of SARS-CoV-2 S protein as fetal bovine serum (FBS)-free system. The resultant purified S protein would be useful tools for the development of immunodetection kits, antigen for immunization for immunoglobulin production, and vaccines.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Fujita R,Hino M,Ebihara T,Nagasato T,Masuda A,Lee JM,Fujii T,Mon H,Kakino K,Nagai R,Tanaka M,Tonooka Y,Moriyama T,Kusakabe Tdoi
10.1016/j.bbrc.2020.06.020subject
Has Abstractpub_date
2020-08-20 00:00:00pages
257-262issue
2eissn
0006-291Xissn
1090-2104pii
S0006-291X(20)31214-6journal_volume
529pub_type
杂志文章abstract::Ectopic over-expression of nucleophosmin/B23 caused a marked up-regulation in the amounts of Yin Yang 1 (YY1) and proliferating cellular nuclear antigen (PCNA) proteins. Transfection with nucleophosmin/B23-targeting siRNA induced a decrease in the intracellular amounts of nucleophosmin/B23, YY1, and PCNA. PCNA express...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.07.150
更新日期:2005-09-30 00:00:00
abstract::Quercetin is one of the most prominent dietary antioxidants. During its antioxidant activity, quercetin becomes oxidized into its o-quinone/quinone methide QQ. QQ is toxic since it instantaneously reacts with thiols of, e.g., proteins. In cells, QQ will initially form an adduct with glutathione (GSH), giving GSQ. We h...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.10.031
更新日期:2005-12-16 00:00:00
abstract::We have investigated the effect of IGF-II on glucose-induced insulin release in the pancreatic beta-cell. Introduction of IGF-II during perifusion of the cells with 20 mM glucose abolished glucose-induced insulin release. Concomitant addition of IGF-II with 20 mM glucose caused a complete inhibition of insulin release...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1997.8053
更新日期:1998-02-04 00:00:00
abstract::To search for the signaling critical for the production of tissue inhibitor of metalloproteinase-2 (TIMP-2), we investigated the role of SHP-2 in TIMP-2 production with Concanavalin A (Con A)-treated cells. In wild-type fibroblasts, Con A-treatment dramatically activated TIMP-2 production. In contrast, production of T...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2006.07.173
更新日期:2006-09-29 00:00:00
abstract::Thermo-alkalophilic bacterium, Geobacillus thermoleovorans secrets many enzymes including a 43 kDa extracellular lipase. Significant thermostability, organic solvent stability and wide substrate preferences for hydrolysis drew our attention to solve its structure by crystallography. The structure was solved by molecul...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2018.11.105
更新日期:2019-01-01 00:00:00
abstract::Protein kinase D (PKD) has been established as a negative modulator of the c-Jun N-terminal kinase (JNK) signaling pathway. We previously demonstrated that induced expression of constitutively active PKD (PKD-S744/748E) that mimics phosphorylation by PKC is sufficient to attenuate epidermal growth factor (EGF) stimula...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(03)00268-7
更新日期:2003-03-21 00:00:00
abstract::Intestinal challenge with cholera toxin induces the synthesis of a hormone-like protein which counteracts intestinal hypersecretion. This study shows that the protein also inhibits GABA transport across the plasma membrane of Deiters' cells in rabbits. The inhibitory action of the protein was dose dependent, and 10(3)...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(85)91719-x
更新日期:1985-08-15 00:00:00
abstract::The prevalence of nonalcoholic fatty liver disease (NAFLD) is high and increasing throughout the world. The intense sterile inflammation stemming from steatosis plays a significant role in the development of NAFLD, but the mechanism is unclear. We found that the NLRC4 inflammasome was activated in an in vitro cell mod...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2019.02.099
更新日期:2019-04-09 00:00:00
abstract::Here, we demonstrate that interleukin-1β (IL-1β) contributes to the γ-ionizing radiation (IR)-induced increase of migration/invasion in A549 lung cancer cells, and that this occurs via RIP1 upregulation. We initially observed that the protein expression and secreted concentration of IL-1β were increased upon exposure ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2020.10.057
更新日期:2021-01-01 00:00:00
abstract::Previously we found a depression in the activity of hepatic xanthine dehydrogenase in rats fed clofibrate or di(2-ethylhexyl)phthalate. The present study further demonstrated that dietary addition of other peroxisome proliferators, including bezafibrate, dehydroepiandrosterone and perfluoro-n-octanoic acid also depres...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1993.2109
更新日期:1993-09-15 00:00:00
abstract::The retinoblastoma suppressor (Rb)-associated protein 46 (RbAp46) is a member of the WD-repeat protein family and a component of the histone modifying and remodeling complexes. Previously, we demonstrated that RbAp46 is a potent growth inhibitor that can suppress the transformed phenotype of tumor cells. To explore th...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2001.5003
更新日期:2001-06-08 00:00:00
abstract::The complex of immobilized human plasminogen (iHPlg) and streptokinase (SK) has a lower catalytic activity in hydrolysis of plasmin-specific substrate S-2251 with a kcat/Km of 0.005 microM-1 x s-1, compared to 0.031 microM-1 x s-1 of immobilized human plasmin (iHPlm) and 0.078 microM-1 x s-1 of HPlm. The SK in the com...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1993.2029
更新日期:1993-08-31 00:00:00
abstract::The mitogen-activated protein (MAP) kinases mediate the response of renal glomerular mesangial cells to a variety of physiologic and pathologic stimuli. This investigation examines the effect of the cyclopentenone prostaglandin 15-deoxy-delta(12,14)-prostaglandin J2 (15d-PGJ2) on MAP kinases in human mesangial cells. ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2001.4301
更新日期:2001-02-16 00:00:00
abstract::Cep169 is a centrosomal protein conserved among vertebrates. In our previous reports, we showed that mammalian Cep169 interacts and collaborates with CDK5RAP2 to regulate microtubule (MT) dynamics and stabilization. Although Cep169 is required for MT regulation, its precise cellular function remains largely elusive. H...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2015.11.004
更新日期:2015-12-25 00:00:00
abstract::Splenic B cells are induced to proliferate upon culture with antibody having specificity for surface membrane immunoglobulins. Cells treated with pronase, washed and then cultured with antibody, exhibited a greater than 5-fold enhancement of DNA synthesis whereas pronase treatment, per se, was not mitogenic. The prona...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(84)91609-7
更新日期:1984-02-29 00:00:00
abstract::Professional phagocytes contain a unique NADPH oxidase responsible for the production of microbicidal oxidants. Activation of this oxidase requires participation of cytosolic and membrane proteins, but the interactions of these components are incompletely understood. Patients with autosomal recessive Chronic Granuloma...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(90)90508-k
更新日期:1990-08-16 00:00:00
abstract::We report that N-oleoylethanolamine (NOE), widely employed as a ceramidase inhibitor, also inhibits glucosylation of naturally occurring ceramides. When CHP-100 neuroepithelioma cells were exposed for 18h to non-toxic NOE concentrations (i.e. up to 70 microM), basal incorporation of labelled hexose into glucosylcerami...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1999.0230
更新日期:1999-02-16 00:00:00
abstract::Neurons extend neurites with an increased synthesis of phosphatidylcholine (PC) that is not only a membrane component but also a functional regulator with specific fatty acid composition. To analyze the local synthesis of the PC molecular species within neurons, we combined a compartmentalized culture system with matr...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2017.11.108
更新日期:2018-01-01 00:00:00
abstract::Protein phosphatase 2C (PP2C) is one of the four major protein serine/threonine phosphatases of eukaryotes and is implicated in the regulation of various cellular functions. With the goal of elucidating the mechanism responsible for regulating PP2C functions, we investigated the significance of phosphorylation of fiss...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1998.9467
更新日期:1998-10-09 00:00:00
abstract::To explore the association of the phenotype of ATP-activated current with the genotype of P2X1-6 subunits in nociceptors, we developed a method that allows us to label nociceptive neurons innervating tooth-pulp in rat trigeminal ganglion (TG) neurons using a retrograde fluorescence-tracing method, to record ATP-activa...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2015.01.156
更新日期:2015-03-13 00:00:00
abstract::To examine the possibility that the Orf135 protein of Escherichia coli functions as a hydrolyzing enzyme for a damaged DNA precursor (deoxyribonucleoside 5'-triphosphate), we purified the recombinant Orf135 protein and incubated it with oxidized deoxynucleotides. Of the nucleotides tested, 2-hydroxydeoxyadenosine 5'-t...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2001.5781
更新日期:2001-11-02 00:00:00
abstract::Enzymes belonging to the S9 family of prolyl oligopeptidases are of interest because of their pharmacological importance and have a non-catalytic β-propeller domain. In this study, we found that the oxidation of Met203, which lies on surface of the β-propeller domain, leads to change in the substrate specificity of er...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2017.04.064
更新日期:2017-05-27 00:00:00
abstract::Glycyrrhetinic acid (GA), a triterpene saponins, has been widely proven to have multiple medicinal properties. Our study aimed to figure out the protective effect of GA on acute lung injury (ALI) and the underlying mechanism. The LPS-induced ALI model mice were intratracheally administrated with 10 mg/kg LPS. Pretreat...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2020.08.044
更新日期:2020-11-19 00:00:00
abstract::We identified a DNA polymerase species in Drosophila melanogaster embryos, and purified it. This polymerase shared some common properties with DNA polymerase epsilon from mammals and yeast as follows; it has a preference for poly(dA)/oligo(dT) as a template/primer, it is highly processive in DNA synthesis, it co-fract...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1996.5945
更新日期:1997-01-13 00:00:00
abstract::Predicting acute clinical events caused by atherosclerotic plaque rupture remains a clinical challenge. Anatomic mapping of the vascular tree provided by standard imaging technologies is not always sufficient for a robust diagnosis. Yet biological mechanisms leading to unstable plaques have been identified and corresp...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章,评审
doi:10.1016/j.bbrc.2015.06.138
更新日期:2015-12-18 00:00:00
abstract::A human cell line established from a patient of an acute monocytic leukemia (THP-1) retained an ability to synthesize and secrete plasma apolipoprotein E like protein. The protein was identified with monospecific antibody raised against human plasma apolipoprotein E. The cells also secreted lipoprotein lipase (EC 3.1....
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(85)90637-0
更新日期:1985-01-16 00:00:00
abstract::Colorectal cancer is a common cancer with metachronous distant metastases still threatening overall survival. Tumor oxygen level influences tumor radiosensitivity in relation to autophagy and apoptosis. The objective of this study is to evaluate the expression and interaction between multiple key regulators in differe...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2019.07.043
更新日期:2019-09-17 00:00:00
abstract::When a plasmid encoding the Sleeping Beauty (SB) transposase (pCMV-SB) was cointroduced with luciferase expression plasmid DNA into mouse skeletal muscle at a molar ratio of 4:1, luciferase gene expression was 5 times higher than the expression without pCMV-SB on day 28. This enhancement was not dependent on the prese...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2004.03.116
更新日期:2004-05-07 00:00:00
abstract::Human embryonic stem cells (hESC) are pluripotent, and can be directed to differentiate into different cell types for therapeutic applications. To expand hESCs, it is desirable to maintain hESC growth without differentiation. As hESC colonies grow, differentiated cells are often found at the periphery of the colonies,...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2008.05.116
更新日期:2008-08-08 00:00:00
abstract::There is increasing evidence for the presence of cancer stem cells (CSCs) in malignant brain tumors, and these CSCs may play a pivotal role in tumor initiation, growth, and recurrence. Vascular endothelial growth factor (VEGF) promotes the proliferation of vascular endothelial cells (VECs) and the neurogenesis of neur...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2007.06.094
更新日期:2007-08-31 00:00:00