Enhancement of dengue virus infection in cultured mouse macrophages by lipophilic derivatives of muramyl peptides.

abstract：:Aged C57BL/6 (B6) mice could reject allogeneic BALB/c RL male 1 tumor as efficiently as young B6 mice. However, in vitro analysis showed impaired generation of cytotoxic T cell response in aged B6 mice against allogeneic tumor. The reaction could be augmented by the addition of recombinant interleukin-2 (rIL-2). Enzym...

journal_title：Microbiology and immunology

authors： Win S,Uenaka A,Nakayama E

更新日期：2002-01-01 00:00:00

abstract：:Sixteen temperature-sensitive mutants of Sendai virus were isolated from mutagenized stocks (10 mutants, designated numerically) and persistently infected cultures (6 mutants, designated alphabetically). Based on complementation tests, virion-associated activities, thermal inactivation, and viral RNA and hemadsorbing ...

journal_title：Microbiology and immunology

authors： Adachi A,Kanda T,Shibuta H

更新日期：1980-01-01 00:00:00

abstract：:Measles vaccines are highly effective and safe; however, the mechanism(s) underlying their attenuation has not been well understood. In this study, type I IFNs (IFN-α and IFN-β) induction in macaques infected with measles virus (MV) strains was examined. Type I IFNs were not induced in macaques infected with wild-type...

journal_title：Microbiology and immunology

authors： Van Nguyen N,Kato SI,Nagata K,Takeuchi K

更新日期：2016-07-01 00:00:00

abstract：:This study aimed to investigate the antifungal activity of Rubus chingii extract in combination with fluconazole (FLC) against FLC-resistant Candida albicans 100 in vitro. A R. chingii extract and FLC-resistant C. albicans fungus suspension were prepared. The minimum inhibitory concentration and fractional inhibitory ...

journal_title：Microbiology and immunology

authors： Han B,Chen J,Yu YQ,Cao YB,Jiang YY

更新日期：2016-02-01 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

authors： Kuramitsu M,Okuma K,Nakashima M,Sato T,Sasaki D,Hasegawa H,Umeki K,Kubota R,Sasada K,Sobata R,Matsumoto C,Kaneko N,Tezuka K,Matsuoka S,Utsunomiya A,Koh KR,Ogata M,Ishitsuka K,Taki M,Nosaka K,Uchimaru K,Iwanaga M

更新日期：2018-10-01 00:00:00

abstract：:Effects of each of three indigenous Lactobacillus groups on other bacterial populations were separately investigated in gnotobiotic rats. In the wall of the non-glandular part of the stomach, contents of the stomach and contents of the upper part of the small intestine, some pre-associated indigenous bacteria were red...

journal_title：Microbiology and immunology

authors： Watanabe T,Morotomi M,Kawai Y,Mutai M

更新日期：1977-01-01 00:00:00

abstract：:Methylcellulose-elicited peritoneal macrophages from BALB/c mice were cultivated in vitro and inoculated with dengue virus (DV). At intervals thereafter portions of the culture fluids were taken and titrated for viral infectivity. Extracts from Ascaris suum and Parascaris equorum, either crude or Sephadex G-100 fracti...

journal_title：Microbiology and immunology

authors： Wiharta AS,Hotta H,Hotta S,Matsumura T,Sujudi,Tsuji M

更新日期：1985-01-01 00:00:00

abstract：:Scanning electron micrograph of HeLa S3 monolayered cells, inoculated with viable bacteria of a Salmonella typhi strain GIFU 10007, revealed that the extended microvilli tangled the bacteria within 10 min after inoculation. The micrographs of HeLa cells, at 1 hr after inoculation, indicate the following: shortening of...

journal_title：Microbiology and immunology

authors： Yokoyama H,Ikedo M,Kohbata S,Ezaki T,Yabuuchi E

更新日期：1987-01-01 00:00:00

abstract：:Although most influenza vaccines are produced in eggs, new types of vaccines must be developed. In this study, the immunogenicity and safety of a baculovirus-expressed hemagglutinin (HA) of H1N1 influenza virus (Korea/01/2009; designated "HA-Bac-K") was compared with those of a commercially available baculovirus-expre...

journal_title：Microbiology and immunology

authors： Na HN,Kim KH,Song MK,Park HL,Lee EY,Shim SH,Park S,Nam JH

更新日期：2013-09-01 00:00:00

abstract：:Chronic hepatitis C virus (HCV) infection affects approximately 170 million people worldwide. HCV infection is a major global health problem as it can be complicated with liver cirrhosis and hepatocellular carcinoma. So far, there is no vaccine available and the non-specific, interferon (IFN)-based treatments now in u...

journal_title：Microbiology and immunology

authors： Aly HH,Shimotohno K,Hijikata M,Seya T

更新日期：2012-01-01 00:00:00

abstract：:The nuclear factor-kappa B (NF-kappaB) plays a critical role in regulating expression of genes responsible for a wide range of cellular processes, including innate and adoptive immune responses, and pathways related to cell survival and proliferation. Based on its property as a transcription factor, NF-kappaB has been...

journal_title：Microbiology and immunology

authors： Isomura I,Morita A

更新日期：2006-01-01 00:00:00

abstract：:L forms of Salmonella typhimurium LT2 conferred strong protection to a lethal challenge with its parental bacterium on innately hypersusceptible C3H/HeJ mice, and its minimal protective dose was approximately 150 L-forming units. Although L-form S. typhimurium was avirulent for C3H/HeJ mice, it multiplied slowly in bo...

journal_title：Microbiology and immunology

authors： Nishikawa F,Kita E,Yamada H,Nakano A,Kashiba S

更新日期：1994-01-01 00:00:00

abstract：:Burkholderia cepacia complex (Bcc) are opportunistic pathogens implicated with nosocomial infections, and high rates of morbidity and mortality, especially in individuals with cystic fibrosis (CF). B. cepacia are naturally resistant to different classes of antibiotics, and can subvert the host innate immune responses ...

journal_title：Microbiology and immunology

authors： Ganesh PS,Vishnupriya S,Vadivelu J,Mariappan V,Vellasamy KM,Shankar EM

更新日期：2020-02-01 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

authors： Sano E,Kamata K,Okano K,Yamazaki S,Iizuka M,Kobayashi S

更新日期：1988-01-01 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

authors： Fukui H,Mitsui S,Harima N,Nose M,Tsujimura K,Mizukami H,Morita A

更新日期：2007-01-01 00:00:00

abstract：:The production of heat-labile enterotoxin (LT) in 76 strains of human enterotoxigenic Escherichia coli (ETEC) varied by a factor of 100. Three ETEC strains that differ in the levels of LT production were chosen for the cloning of LT genes (toxAB) into plasmid pBR322, and the gene structure and expression were compared...

journal_title：Microbiology and immunology

authors： Katayama S,Ninomiya M,Minami J,Okabe A,Hayashi H

更新日期：1990-01-01 00:00:00

abstract：:Salmonella enterica serovar Typhi and serovar Paratyphi A with reduced susceptibility to fluoroquinolones (MICs of ciprofloxacin, 0.25 to 2 microg/ml) have a mutation at codon either Ser-83 or Asp-87 of gyrA gene. A screening method by PCR-restriction fragment length polymorphism (PCR-RFLP) was designed to screen the ...

journal_title：Microbiology and immunology

authors： Hirose K,Tamura K,Watanabe H

更新日期：2003-01-01 00:00:00

abstract：:The effect of fatty acids on Mycobacterium smegmatis was examined in vitro at pH 5.0 to 7.0 to determine the role of fatty acids in the intracellular killing of mycobacteria. Unsaturated fatty acids showed strong bactericidal activity in low concentrations (0.005 to 0.02 mM), whereas saturated fatty acids, except for ...

journal_title：Microbiology and immunology

authors： Kanetsuna F

更新日期：1985-01-01 00:00:00

abstract：:Zymographic analysis was performed to know the bacteriolytic enzyme profiles of 4% SDS extracts of oral streptococci, Streptococcus mutans, S. sobrinus, S. sanguis, S. mitis and S. salivarius. We investigated the five strains in each species and found that the profile was very similar among strains of the same species...

journal_title：Microbiology and immunology

authors： Yoshimura G,Komatsuzawa H,Kajimura J,Fujiwara T,Ohara M,Kozai K,Sugai M

更新日期：2004-01-01 00:00:00

abstract：:Congenitally athymic BALB/cA nu/nu mice were employed to elucidate the role of the thymus in experimental Mycoplasma pulmonis strain m53 infection, and nu/+ mice were used for comparison. Chronic polyarthritis was frequently produced in both of nu/nu and nu/+ mice by intravenous injection of the organisms. Macroscopic...

journal_title：Microbiology and immunology

authors： Tanaka H

更新日期：1979-01-01 00:00:00

abstract：:Temperature dependence of transfer was examined with ten R plasmids originating from clinical isolates of Salmonella. Six of the plasmids were thermosensitive upon transfer, five of which were originally harbored in S. typhimurium and the remaining one in S. derby. One of these plasmids, pNR502, which conferred resist...

journal_title：Microbiology and immunology

authors： Yoshida Y,Terawaki Y,Nakaya R

更新日期：1978-01-01 00:00:00

abstract：:Escherichia coli O157 strains starved in sterile deionized water (SDW) and filter-sterilized natural river water (SRW) were investigated with specific reference to their culturability in selective and non-selective media. Growth of the strains starved in both SDW and SRW were markedly suppressed with time in selective...

journal_title：Microbiology and immunology

authors： Sata S,Osawa R,Asai Y,Yamai S

更新日期：1999-01-01 00:00:00

abstract：:A gene upstream from fimA, the gene encoding fimbrilin, on the chromosome of Porphyromonas gingivalis was sequenced and shown to be the gene encoding an outer membrane protein in this organism based on homology and biochemical analyses. Therefore, the gene (formerly ORF5) was designated pgmA, the P. gingivalis outer m...

journal_title：Microbiology and immunology

authors： Hongo H,Osano E,Ozeki M,Onoe T,Watanabe K,Honda O,Tani H,Nakamura H,Yoshimura F

更新日期：1999-01-01 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

authors： Machida K,Sakurai S,Kondo I,Ikawa S

更新日期：1988-01-01 00:00:00

abstract：:Antibodies to influenza A virus were detected using enzyme-linked immunosorbent assay (ELISA) in the sera from two of seven Baikal seals (Phoca sibrica) and from five of six ringed seals (Phoca hispida) in Russia. In a hemagglutination-inhibition test using H1-H15 reference influenza A viruses, ELISA-positive sera fro...

journal_title：Microbiology and immunology

authors： Ohishi K,Kishida N,Ninomiya A,Kida H,Takada Y,Miyazaki N,Boltunov AN,Maruyama T

更新日期：2004-01-01 00:00:00

abstract：:The standard products of V(D)J recombination of immunoglobulin and T cell receptor genes are two kinds of DNA junction, a coding joint and a signal joint. TCR delta V-D and D-D signal joints in adult mouse thymocytes were sequenced following PCR amplification. We observed differential nucleotide insertions at the V de...

journal_title：Microbiology and immunology

authors： Kanari Y,Muto M,Yamagishi H

更新日期：2003-01-01 00:00:00

abstract：:We examined the mechanisms of fluconazole resistance in a fluconazole-resistant Candida albicans isolate from a Japanese patient with chronic mucocutaneous candidiasis. It was demonstrated that the highly resistant phenotype of this strain was associated with combined mechanisms of the energy-dependent reduced intrace...

journal_title：Microbiology and immunology

authors： Kamai Y,Maebashi K,Kudoh M,Makimura K,Naka W,Uchida K,Yamaguchi H

更新日期：2004-01-01 00:00:00

abstract：:Antiplague indirect hemagglutination tests were investigated with Yersinia pestis fraction-I antigen and sera from experimentally infected rodents. The same tests with sera treated with acetone or acetone-2-mercaptoethanol were performed in parallel. Technical conditions were determined to insure the specificity and r...

journal_title：Microbiology and immunology

authors： Suzuki S,Hotta S

更新日期：1979-01-01 00:00:00

abstract：:A 9.8-kbp DNA fragment which contained a neurotoxin gene and its upstream region was cloned from Clostridium botulinum type D strain CB-16. Nucleotide sequencing of the fragment revealed that genes encoding for hemagglutinin (HA) subcomponents and one for a nontoxic-nonhemagglutinin (NTNH) component were located upstr...

journal_title：Microbiology and immunology

authors： Ohyama T,Watanabe T,Fujinaga Y,Inoue K,Sunagawa H,Fujii N,Inoue K,Oguma K

更新日期：1995-01-01 00:00:00

abstract：:Fifty-eight enterotoxigenic Escherichia coli (ETEC) strains, isolated from children with and without diarrhea in São Paulo, were examined for the presence of colonization factor antigens (CFAs) and their ability to adhere to HeLa cells. Antisera to CFA/I, the coli surface (CS) antigens CS1CS3, CS2CS3, and CS2 of CFA/I...

journal_title：Microbiology and immunology

authors： Guth BE,Aguiar EG,Griffin PM,Ramos SR,Gomes TA

更新日期：1994-01-01 00:00:00