Variation in M protein production among Streptococcus pyogenes strains according to emm genotype.

abstract：:Three strains TKU9, TKU49 and TKU50(T) , were isolated from the oral cavities of chimpanzees (Pan troglodytes). The isolates were all gram-positive, facultative anaerobic cocci that lacked catalase activity. Analysis of partial 16S rRNA gene sequences showed that the most closely related species was Streptococcus infa...

journal_title：Microbiology and immunology

authors： Okamoto M,Imai S,Miyanohara M,Saito W,Momoi Y,Nomura Y,Ikawa T,Ogawa T,Miyabe-Nishiwaki T,Kaneko A,Watanabe A,Watanabe S,Hayashi M,Tomonaga M,Hanada N

更新日期：2015-09-01 00:00:00

abstract：:The effect of human normal serum (HNS) on Pseudomonas pseudomallei was determined. It is apparent from our data that the organism is resistant to the normal serum bactericidal mechanism. Ancillary experiments to confirm this serum-resistant property of P. pseudomallei were done by examining the effects of growth phase...

journal_title：Microbiology and immunology

authors： Ismail G,Razak N,Mohamed R,Embi N,Omar O

更新日期：1988-01-01 00:00:00

abstract：:Interleukin-12 is one of the cytokines that induce acquired immunity by progressing the differentiation of T cells. When antigens are presented by APCs, including macrophages and DCs, T cells are activated and produce the Th1 cytokines IL-2 and IFN-γ. We have previously reported greater IL-12 production from macrophag...

journal_title：Microbiology and immunology

authors： Taniguchi K,Miyatake Y,Hayashi D,Takami A,Itoh S,Yamamoto S,Hida S,Onozaki K,Takii T

更新日期：2015-11-01 00:00:00

abstract：:We have previously reported a mouse model of severe group A streptococcal infection (Microbiol. Immunol. 45: 777-786, 2001). When we injected Streptococcus pyogenes strains intramuscularly, the mice suffered from acute phase of infection for a few days but recovered from the illness and gained body weight. These mice,...

journal_title：Microbiology and immunology

authors： Iida K,Seki M,Saito M,Kawamura Y,Kajiwara H,Yoshida S

更新日期：2006-01-01 00:00:00

abstract：:Interferon stimulated gene 15 (ISG15), an ubiquitin cross-reactive protein, can conjugate to target proteins. Unlike ubiquitination, protein modification by ISG15 does not target protein for degradation, but enhances the cellular response to interferon (IFN), which plays a key role in antiviral responses. In this stud...

journal_title：Microbiology and immunology

authors： Yang L,Zhang LY,Wang C,Wang B,Wang XM,Zeng SM

更新日期：2012-03-01 00:00:00

abstract：:Although the BCG vaccine can prevent tuberculosis (TB) in infants, its ability to prevent adult pulmonary TB is reportedly limited. Therefore, development of a novel effective vaccine against pulmonary TB has become an international research priority. We have previously reported that intranasal vaccination of mice wit...

journal_title：Microbiology and immunology

authors： Fukui M,Shinjo K,Umemura M,Shigeno S,Harakuni T,Arakawa T,Matsuzaki G

更新日期：2015-12-01 00:00:00

abstract：:Chikungunya virus (CHIKV) was purified and subjected to sodium dodecyl sulfate-polyacrylamide gel electrophoresis in discontinuous buffer systems. Three bands were revealed by staining with Coomassie blue; two of them (E1 and E2) were associated with the membrane, and one (C) with the core. Their molecular weights wer...

journal_title：Microbiology and immunology

authors： Konishi E,Hotta S

更新日期：1980-01-01 00:00:00

abstract：:Natural killer cells, a critical component of the innate immune system, eradicate both virus-infected cells and tumor cells through cytotoxicity and secretion of cytokines. Human NK cell research has largely been based on in vitro studies because of the lack of appropriate animal models. In this study, a selective pro...

journal_title：Microbiology and immunology

authors： Hattori S,Matsuda K,Kariya R,Harada H,Okada S

更新日期：2016-02-01 00:00:00

abstract：:Intracellular localization of the wild-type (Spv+), the phoP-constitutively expressed strain (PhoPc), and the spv-deleted strain (Spv-) of Salmonella typhimurium was examined by the use of confocal laser scanning microscopy analysis of immunostained sections of mouse spleens after oral or subcutaneous inoculation. Onl...

journal_title：Microbiology and immunology

authors： Matsui H,Eguchi M,Kikuchi Y

更新日期：2001-01-01 00:00:00

abstract：:The antigenic formula and chemical structure of capsular polysaccharide (CPS) of Cryptococcus albidus var. albidus (C. albidus) were studied in relation to those of C. neoformans var. neoformans serotype A (C. neoformans A). The results of slide agglutination tests with factor sera and reciprocal adsorption experiment...

journal_title：Microbiology and immunology

authors： Ikeda R,Matsuyama H,Nishikawa A,Shinoda T,Fukazawa Y

更新日期：1991-01-01 00:00:00

abstract：:The genospecies Borrelia afzelii was isolated from a patient of Lyme disease in Hokkaido, Japan, for the first time, by culturing the minced erythema lesion in BSK II medium. Two analytical methods, rRNA gene restriction fragment length polymorphism (RFLP) and polymerase chain reaction (PCR) using the specific primer ...

journal_title：Microbiology and immunology

authors： Nakao M,Miyamoto K,Fukunaga M,Hashimoto Y,Takahashi H

更新日期：1994-01-01 00:00:00

abstract：:Dengue virus multiplication in cultures of a murine myelomonocytic cell line (WEHI-3) as well as mouse peritoneal macrophages was enhanced by treatment of the cells with lipophilic derivatives of muramyl peptides for 2 or 3 days before virus inoculation, but not for 2 hr before virus inoculation or during the adsorpti...

journal_title：Microbiology and immunology

authors： Hotta H,Sanchez LF,Takada H,Homma M,Kotani S

更新日期：1985-01-01 00:00:00

abstract：:Streptococcus suis infection induces formation of neutrophil extracellular traps (NETs) in vitro; however, the contribution of NETs-mediated killing to the pathogenesis of S. suis in vivo is yet to be elicited. The findings of the present study indicated that extracellular DNA fiber can be induced in a murine model in...

journal_title：Microbiology and immunology

authors： Zhao J,Lin L,Fu L,Han L,Zhang A

更新日期：2016-04-01 00:00:00

abstract：:Actin is a major antigen involved in the reaction of smooth muscle antibody positive sera from patients with chronic active hepatitis. In the present study, actin extracted from rabbit skeletal muscle was denatured by sodium dodecyl sulfate and was immunized into the rabbit, a homologous animal for actin. The rabbits,...

journal_title：Microbiology and immunology

authors： Nishioka M,Aibiki T,Shirai M,Terada S,Kagawa H,Watanabe S

更新日期：1986-01-01 00:00:00

abstract：:Sera from 3,158 individuals living in northern Egypt were tested for the presence of antibodies against human T-lymphotropic virus type I (HTLV-I) by the newly developed particle agglutination (PA) test. Ten sera gave a positive reaction in the PA test. Eight of these sera were examined further by Western blotting and...

journal_title：Microbiology and immunology

authors： el-Farrash MA,Badr MF,Hawas SA,el-Nashar NM,Imai J,Komoda H,Hinuma Y

更新日期：1988-01-01 00:00:00

abstract：:The protective role of neutrophils on intranasal infection of influenza virus was investigated in 3 strains of tumor-bearing mice with neutrophilic leukocytosis. In vitro multiplication of influenza virus was inhibited by neutrophils from both normal and tumor-bearing mice, and the inhibitory effect of neutrophils was...

journal_title：Microbiology and immunology

authors： Fujisawa H

更新日期：2001-01-01 00:00:00

abstract：:Virulence of hantavirus strain of SR-11 Seoul virus and Hantaan 76-118 (HTN) of Hantaan virus were compared. Infections of both strains were lethal in newborn mice. However, inoculum required to cause lethal infection was about 4,000 times higher for strain HTN (1.65 x 10(3) PFU/mouse/LD50) than for strain SR-11 (0.36...

journal_title：Microbiology and immunology

authors： Yoo YC,Yoshimatsu K,Yoshida R,Tamura M,Azuma I,Arikawa J

更新日期：1993-01-01 00:00:00

abstract：:Pneumocystis spp. are opportunistic fungal pathogens that are closely associated with severe pneumonia and pulmonary complications in patients with impaired immunity. In this study, the antigenic epitopes of the gene encoding the 55 kDa antigen fragment of Pneumocystis (p55), which may play an important role in Pneumo...

journal_title：Microbiology and immunology

authors： Fan H,Guo JY,Ma SL,Zhang N,An CL

更新日期：2016-06-01 00:00:00

abstract：:The HMV-II cells infected with influenza C virus were labeled with inorganic [32P]phosphate to identify phosphorylated proteins. Analysis by radioimmunoprecipitation with antiviral serum or monoclonal antibodies revealed that three major structural proteins of the virus, hemagglutinin-esterase (HE), nucleoprotein (NP)...

journal_title：Microbiology and immunology

authors： Nishimura H,Sugawara K,Gao P,Muraki Y,Hongo S,Kitame F,Nakamura K

更新日期：1995-01-01 00:00:00

abstract：:Alkaline phosphatase-conjugated oligonucleotide probes were developed to detect the gene coding for Vero toxin 1 (VT1) and Vero toxin 2 (VT2). Using these probes, 3 hr was enough to detect VT genes when suspicious colonies of enterohaemorrhagic Escherichia coli (EHEC) were obtained on an agar plate. The results of a h...

journal_title：Microbiology and immunology

authors： Yoh M,Takagi K,Eda J,Ohtomo M,Takarada Y,Shibata S,Honda T

更新日期：1997-01-01 00:00:00

abstract：:Phage TP1, induced from Vibrio parahaemolyticus K-20 pilot strain by mitomycin C, exhibited a unique hexagonal head with knob-like projections which covered the whole capsid and a noncontractile tail. The appearance of this phage was very similar to those of phages VP3 and VP6, isolated from seawater. The host range o...

journal_title：Microbiology and immunology

authors： Koga T,Kawata T

更新日期：1991-01-01 00:00:00

abstract：:We recently developed a method for serotyping human rotavirus (HRV) by an enzyme-linked immunosorbent assay with HRV serotype-specific neutralizing monoclonal antibodies (ELISA serotyping). In the present study this method was compared with the fluorescent focus neutralization test with serotype-specific rabbit antise...

journal_title：Microbiology and immunology

authors： Urasawa S,Urasawa T,Taniguchi K,Morita Y,Sakurada N,Saeki Y,Morita O,Hasegawa S

更新日期：1988-01-01 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：:The concept of superantigens is well-known and widely accepted. In this brief communication, we analyze the behaviour of antigen-presenting cells after T-cell activation by staphylococcal enterotoxin B, a representative superantigen. We tried to activate murine T cells by inflammatory mouse peritoneal macrophage in th...

journal_title：Microbiology and immunology

authors： Sakurada J,Tajima A,Shinji H,Seki K,Masuda S

更新日期：2000-01-01 00:00:00

abstract：:In order to elucidate the molecular characteristics of Japanese encephalitis (JE) virus in Okinawa, 23 strains of JE virus isolated in a 25-year span were sequenced for the 240 nucleotides of the C-preM junction region and 111 nucleotides of the E gene region and compared with those of reference strains isolated in ma...

journal_title：Microbiology and immunology

authors： Ma SP,Arakaki S,Makino Y,Fukunaga T

更新日期：1996-01-01 00:00:00

abstract：:Of the various virulence mechanisms of the opportunistic pathogen Pseudomonas aeruginosa, the type III secretion system (TTSS) has been characterized as a major factor associated with acute lung injury, bacteremia and mortality. In addition, PcrV, a component protein of the TTSS, has been characterized as a protective...

journal_title：Microbiology and immunology

authors： Yasumoto H,Katoh H,Kinoshita M,Shimizu M,Hamaoka S,Akiyama K,Naito Y,Sawa T

更新日期：2016-02-01 00:00:00

abstract：:To evaluate DNA fingerprinting as an epidemiologic tool, pulsed-field gel electrophoresis (PFGE) was performed on isolates of Salmonella, including S. typhimurium, S. thompson, and S. enteritidis. Chromosomal DNA was digested with the restriction endonucleases Bln I and Xba I. The patterns of S. thompson and S. typhim...

journal_title：Microbiology and immunology

authors： Murase T,Okitsu T,Suzuki R,Morozumi H,Matsushima A,Nakamura A,Yamai S

更新日期：1995-01-01 00:00:00

abstract：:A 4-year (1996-2000) survey of rotavirus infection involving 2,218 diarrheal fecal specimens of children collected from five regions of Japan was conducted. A total of 642 (28.9%) specimens were found to be rotavirus positive. A changed prevalence pattern of rotavirus G serotype was found with an increase of G9 and G2...

journal_title：Microbiology and immunology

authors： Zhou Y,Li L,Okitsu S,Maneekarn N,Ushijima H

更新日期：2003-01-01 00:00:00

abstract：:Staphylococcus aureus is the most predominant and important pathogen in clinical microbiology. A DNA amplification assay using the polymerase chain reaction (PCR) was designed to identify S. aureus through a single-base-pair mismatch in the sequences of staphylococcal 16S ribosomal RNA (16S rRNA) genes. It was able to...

journal_title：Microbiology and immunology

authors： Saruta K,Hoshina S,Machida K

更新日期：1995-01-01 00:00:00

abstract：:Integration of bovine leukemia virus (BLV) in the genomes of infected cells was investigated in cattle with enzootic bovine leukosis (EBL) and sporadic bovine leukosis (SBL). Southern blot hybridization of BLV cDNA to Eco RI and Xba I restriction fragments of EBL tumor DNAs revealed that: 1) one to four or more copies...

journal_title：Microbiology and immunology

authors： Onuma M,Sagata N,Okada K,Ogawa Y,Ikawa Y,Oshima K

更新日期：1982-01-01 00:00:00