Abstract:
:Site-specific recombinase is widely applied for the regulation of gene expression because its regulatory action is strict and efficient. However, each system can mediate regulation of only one gene at a time. Here, we demonstrate efficient "sequential" gene regulation using Cre-and FLP-expressing recombinant adenovirus (rAd) in two different monitor cell lines, for regulation of one gene (OFF-ON-OFF) and for two genes (ON-OFF and OFF-ON, independently). Generally, serial use of Cre-and FLP-expressing rAd tends to cause significant cytotoxicity, but we here described optimum dose of the rAds for serial regulation. We also established an efficient method of rAd infection to mouse ES cell lines after removing feeder cells, showing that this system is useful for removal of FRT-flanked drug-resistance gene cassette from recombinant ES cells prior to introduction of ES cells into blastocytes for chimeric mice production. Because our sequential gene-regulation system offers efficient purpose-gene regulation and strict OFF-regulation, it is potentially valuable for elucidating not only novel gene functions using cDNA microarray analysis but also for "gene switching" in development and regeneration research.
journal_name
Microbiol Immunoljournal_title
Microbiology and immunologyauthors
Kondo S,Takahashi Y,Shiozawa S,Ichise H,Yoshida N,Kanegae Y,Saito Idoi
10.1111/j.1348-0421.2006.tb03850.xsubject
Has Abstractpub_date
2006-01-01 00:00:00pages
831-43issue
10eissn
0385-5600issn
1348-0421pii
JST.JSTAGE/mandi/50.831journal_volume
50pub_type
杂志文章abstract::A rapid method to determine the allelic variants of the sheep PrP gene was developed. DNA samples from 128 Suffolk sheep (39 rams and 89 ewes) were screened by using polymerase chain reactions and dot-blot hybridization with 32P-labeled nine allele-specific oligonucleotide probes corresponding to the polymorphic PrP c...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1998.tb02327.x
更新日期:1998-01-01 00:00:00
abstract::Staphylococcus aureus strains isolated from bovine intramammary infection (mastitis) were tested for adhesion to bovine mammary epithelial cells after growth in milk whey or TSB. Bacteria grown in milk whey adhered more efficiently to mammary gland epithelial cells in vitro than the corresponding homologous bacteria g...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1994.tb01781.x
更新日期:1994-01-01 00:00:00
abstract::The use of continuous free-flow electrophoresis for the purification of extracted lipopolysaccharides ( LPSs ) was investigated. Commercial (nucleic acid contaminated) LPS preparations, isolated by the hot phenol-water method of Westphal from Salmonella typhimurium and Escherichia coli 0111: B4, were analyzed. Continu...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1984.tb00668.x
更新日期:1984-01-01 00:00:00
abstract::We established an assay system for detecting T cell-replacing factor (TRF) activity of translated materials in Xenopus oocytes of poly (A)-positive mRNA extracted from a T cell hybrid cell line, B151K12 (B151) which constitutively produces TRF. Since it was difficult to detect TRF activity of the translated products o...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1986.tb03005.x
更新日期:1986-01-01 00:00:00
abstract::Filamentous phage, fs1, was obtained from Vibrio cholerae O139. The lysogenized strains produced a large amount of fs1 phage in the culture supernatant. This phage was previously reported as novel fimbriae of that organism. The genome of the phage was a 6.5 kb single-stranded DNA. The capsid of fsl consists of a small...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1998.tb02277.x
更新日期:1998-01-01 00:00:00
abstract::A mouse model for the study of postexposure prophylaxis of rabies was established. Mice injected intramuscularly with a street strain of rabies virus were significantly protected from death by five daily 0.2-ml doses of inactivated rabies vaccine of chick embryo cell culture origin initiated immediately or 3 hr after ...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1980.tb02888.x
更新日期:1980-01-01 00:00:00
abstract::The function of MHC class II HLA-DR molecules expressed on a human B lymphoid progenitor cell line FL8.2.4.4 (abbreviated as FL4.4) was examined. FL4.4 cells expressed HLA-DR molecules and stimulation of the DR molecules by anti-DR mAb or by superantigen TSST-1 induced strong augmentation of homocytic aggregation and ...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1994.tb02154.x
更新日期:1994-01-01 00:00:00
abstract::Stromal cell-derived factor-1 (SDF-1) is an efficacious chemoattractant for lymphocytes, monocytes and hematopoietic progenitor cells. In the present study, we examined whether SDF-1 has growth promoting activity on human peripheral T cells and analyzed the possible underlying signal transduction pathways. SDF-1 augme...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.2000.tb01256.x
更新日期:2000-01-01 00:00:00
abstract::Quantitative PCR (qPCR) of human T-cell leukemia virus type 1 (HTLV-1) provirus is used for HTLV-1 testing and for assessment of risk of HTLV-1-related diseases. In this study, a reference material was developed for standardizing HTLV-1 qPCR. Freeze-dried TL-Om1 cells diluted with Jurkat cells were prepared and an ass...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/1348-0421.12644
更新日期:2018-10-01 00:00:00
abstract::Farnesol is well known as a quorum-sensing molecule of Candida albicans. To assess the pathological function of farnesol, its effects on macrophage viability and functions including growth inhibitory activities against C. albicans were examined in vitro. Murine macrophages, when cultured in the presence of 56-112 micr...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.2009.00128.x
更新日期:2009-06-01 00:00:00
abstract::We investigated sex- and age-specific prevalences of hepatitis B e antigen (HBeAg) and antibody to HBeAg (anti-HBe) in 1,163 carriers of hepatitis B surface antigen (HBsAg) in Okinawa, Japan, and followed them up for longer than one year in correlation with liver function abnormalities. Elevated serum transaminase lev...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1988.tb01445.x
更新日期:1988-01-01 00:00:00
abstract::Peptone-yeast extract (PY) medium containing 0.035% ferric ammonium citrate as an indicator, 0.05% sulfite as a substrate, 0.05% cysteine as a reducer and 0.5% glucose was found to be suitable for observing the sulfite reduction test. The effect of added cysteine on the test was suppressed by the addition of glucose. ...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1980.tb02830.x
更新日期:1980-01-01 00:00:00
abstract::M protein is an important virulence determinant in Streptococcus pyogenes, but the amounts of M protein in various strains of the species remain to be elucidated. To assess the amount of M protein in strains of each emm genotype, dot blot analysis was performed on 141 clinically isolated strains. Among the cell membra...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.2011.00329.x
更新日期:2011-06-01 00:00:00
abstract::Us3 is a serine-threonine protein kinase that is encoded by herpes simplex virus 1 (HSV-1). In experimental animal models of HSV infection, peripheral and intracranial inoculations can be used to study viral pathogenicity in peripheral sites (e.g., eyes and vagina) and central nervous systems (CNSs), respectively. In ...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/1348-0421.12108
更新日期:2014-01-01 00:00:00
abstract::This study revealed the presence of various rickettsial agents in mites from wild rodents collected in Southern Jeolla Province, Korea, by nested polymerase chain reaction (PCR) and sequence analysis of a partial citrate synthase and rickettsia outer membrane protein B genes. Rickettsial agents closely related to the ...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.2007.tb03912.x
更新日期:2007-01-01 00:00:00
abstract::In a previous study, it was found that polyoxotungstates such as undecatungstosilicate (SiW11) greatly sensitized strains of methicillin-resistant Staphylococcus aureus (MRSA) to beta-lactams. In this report, the effects of SiW11 on several MRSA strains with unique resistant mechanisms were studied. SiW11 was still ef...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.2003.tb03388.x
更新日期:2003-01-01 00:00:00
abstract::A protease was purified from a strain of Vibrio vulnificus isolated from the blood of a septicemic human. The vibrio was cultured in bacto peptone-yeast extract medium, and the protease was purified by a purification procedure including ultrafiltration of the culture supernatant with an Amicon YM 5 membrane, diethylam...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1987.tb03064.x
更新日期:1987-01-01 00:00:00
abstract::The serovar-specific main antigen (TM antigen) of Leptospira interrogans serovar canicola, which as lipopolysaccharide properties, was treated with 0.1 N sodium hydroxide. This treatment degraded the antigen into two major antigenic components, one of high and one of low molecular weight. The component with the lower ...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1981.tb00099.x
更新日期:1981-01-01 00:00:00
abstract::The killing activity of cord blood mononuclear cells (cMNC) against cytomegalovirus (CMV)-uninfected and -infected fibroblasts was comparable to that of adult peripheral blood mononuclear cells (aPBMC). The killing activity of cMNC against K562 cells was significantly lower compared with that of aPBMC. Treatment of cM...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1999.tb02387.x
更新日期:1999-01-01 00:00:00
abstract::Dendritic cells (DCs) have a major role in regulating immune responses, including tumor immunity and peripheral tolerance. In the present study, we identified novel functions of herbal medicines in DCs by screening 99 herbal medicines, most of which are among the 210 Chinese medicines approved by the Ministry of Healt...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.2007.tb03998.x
更新日期:2007-01-01 00:00:00
abstract::The cell division-related gene A (cdrA) of Helicobacter pylori is dispensable in vivo and unique in having a repressive role on cell division and long-term survival. To clarify its role, comparisons of the wildtype HPK5 and isogenic cdrA-disrupted mutant HPKT510 were examined by ultrastructural morphology, PBP profile...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.2006.tb03819.x
更新日期:2006-01-01 00:00:00
abstract::We previously reported a helper T-cell (Th) epitope (peptide i) which corresponded to the sequence ranging from positions 462 to 479 from the N-terminus of the Friend-murine leukemia virus (F-MuLV) envelope protein (env462-479). Homologous sequences exist in both Moloney-murine leukemia (M-MuLV env452-469) and endogen...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1998.tb02313.x
更新日期:1998-01-01 00:00:00
abstract::Enterovirus 71 (EV71) is the predominant pathogen for severe hand, foot, and mouth disease (HFMD) in children younger than 5 years, and currently no effective drugs are available for EV71. Thus, there is an urgent need to develop new drugs for the control of EV71 infection. In this study, LJ04 was extracted from Lamin...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/1348-0421.12763
更新日期:2020-03-01 00:00:00
abstract::When the R-form lipopolysaccharide (LPS) from Klebsiella pneumoniae strain LEN-111 (O3-:K1-), from which cationic material had been removed by electrodialysis, was suspended in 50 mM Tris buffer at pH 8.5 containing 0.1 mM or higher concentrations of MgCl2, it formed an ordered two-dimensional hexagonal lattice struct...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1990.tb01025.x
更新日期:1990-01-01 00:00:00
abstract::Recombinant human interferon-gammas (rHuIFN-gamma s) were obtained from two different mammalian cells (mouse C127 cells and Chinese hamster ovary, CHO, cells) cultured in a microcarrier culture system. Both rHuIFN-gamma s were purified using sequential chromatographies for their comparison of structural properties. Th...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1988.tb01410.x
更新日期:1988-01-01 00:00:00
abstract::Salmonella typhimurium strain 9 produces mini-cells during cell proliferation. Mini-cells are viable but cannot proliferate since they do not contain chromosomal DNA. Effects of whole cells and mini-cells of S. typhimurium on the immune responses were investigated, with the following results. Phagocytosis of peritonea...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1981.tb00049.x
更新日期:1981-01-01 00:00:00
abstract::Staphylococcal exfoliative toxin A (ETA) had a splitting effect at the granular layer of skin in humans and neonatal mice, but not in rabbits, guinea pigs, golden hamsters, or rats. Besides its splitting effect, ETA could stimulate productions of neutralizing antibody to ETA in rabbits, rats and B10D2 mice, but not in...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1988.tb01472.x
更新日期:1988-01-01 00:00:00
abstract::Erythematous delayed reactions without induration, presumably assigned to Jones-Mote type, were characterized by the resistance to treatment with cyclophosphamide (CY) before elicitation or immunization in guinea pigs immunized with BGG in IFA or CFA. CY-treatment before elicitation converted delayed erythematous reac...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1978.tb00425.x
更新日期:1978-01-01 00:00:00
abstract::The attachment of Mycoplasma pulmonis m53 organisms to mouse and rat synovial cells was examined by using the organisms and the synovial cells treated in various ways. M. pulmonis treated with trypsin attached to the synovial cells, but the organisms treated with pronase, formaldehyde, glutaraldehyde, or heat did not....
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1985.tb00864.x
更新日期:1985-01-01 00:00:00
abstract::One- and two-dimensional polyacrylamide gel electrophoresis (PAGE) was performed on immunoprecipitates formed between anti-human T-cell xeno-antiserum (ATS) and cell-surface glycoproteins of human lymphocytes, that had been radioiodinated by lactoperoxidase and purified on a Lentil lectin-coupled Sepharose 4B column. ...
journal_title:Microbiology and immunology
pub_type: 杂志文章
doi:10.1111/j.1348-0421.1981.tb00074.x
更新日期:1981-01-01 00:00:00