In vitro models for analysis of the hepatitis C virus life cycle.

abstract：:The mechanism of MHC-restricted T and B cell interactions in antibody response was studied with IgM-inducible B hybridomas and antigen-specific helper T cell clones. B hybridomas were prepared by fusion between splenic B cells from (CBA/N (H-2k) X BALB/c (H-2d)) F1 (NBF1) male mice and a B lymphoma cell line, M12.4.5....

journal_title：Microbiology and immunology

authors： Yoshikubo T,Kimoto M,Kishimoto T

更新日期：1985-01-01 00:00:00

abstract：:Although the RC-HL strain of rabies virus is avirulent in adult mice, the amino acid at position 333 of its G protein is arginine, which is thought to be necessary for virulence in adult mice upon intracerebral inoculation of the virus. This result suggests that besides arginine at position 333, some other positions o...

journal_title：Microbiology and immunology

authors： Ito H,Minamoto N,Watanabe T,Goto H,Rong LT,Sugiyama M,Kinjo T,Mannen K,Mifune K,Konobe T

更新日期：1994-01-01 00:00:00

abstract：:The lack of a suitable animal model is a major obstacle to developing anti-HIV-1 vaccines. We successfully generated an SIVmac/HIV-1 chimeric virus (SHIV) (designated as NM-3rN) that contains the HIV-1 env gene and is infectious to macaque monkeys. Challenging the vaccinated macaque monkeys with NM-3rN, we developed a...

journal_title：Microbiology and immunology

authors： Haga T,Kuwata T,Ui M,Igarashi T,Miyazaki Y,Hayami M

更新日期：1998-01-01 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：: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：:The fusion of BHK-21-KB cells by vesicular stomatitis virus was not induced in Eagle's minimal essential medium without glucose. In medium containing glucose, the rate of polykaryocyte formation decreased as the concentration of glucose was reduced below 5 mM. However, no reduction in virus production 24 hr after infe...

journal_title：Microbiology and immunology

authors： Takehara M

更新日期：1981-01-01 00:00:00

abstract：:To determine the infection source of a sporadic Legionella pneumonia case associated with a hot spring bath, we used five molecular methods, including repetitive element polymerase chain reaction (rep-PCR), arbitrarily primed PCR (AP-PCR), ribotyping, restriction endonuclease analysis (REA), and macrorestriction endon...

journal_title：Microbiology and immunology

authors： Miyamoto H,Jitsurong S,Shiota R,Maruta K,Yoshida S,Yabuuchi E

更新日期：1997-01-01 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：:We prepared polyclonal antibody specific to Mycoplasma pneumoniae. Using this antibody, we developed a latex agglutination test (LAT) for detecting the organism in respiratory exudates as rapid diagnosis of M. pneumoniae infection. Further, LAT was compared with DNA-probe test (DP) which was the only commercially avai...

journal_title：Microbiology and immunology

authors： Masayoshi T,Hirai Y,Kanemasa Y

更新日期：1992-01-01 00:00:00

abstract：:In order to assess the role of the route of immunization on the immunogenicity of killed Salmonella vaccine, mice were immunized with killed S. enteritidis by intraperitoneal (i.p.) and intradermal (i.d.) routes. Whereas the former was non-immunogenic, the i.d. immunization generated an excellent delayed-type hypersen...

journal_title：Microbiology and immunology

authors： George A,Shroff KE,Rath S,Ghosh SN,Sengupta SR,Kamat RS

更新日期：1989-01-01 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：:The fermentation-inhibition (FI) test for Mycoplasma pneumoniae was improved by using a combination of guinea pig complement and gamma globulin-depleted horse serum in place of unheated whole horse serum employed in the conventional assay system. As the test antigen for the new FI assay system, M. pneumoniae filtrated...

journal_title：Microbiology and immunology

authors： Okazaki N,Akema R,Takizawa K

更新日期：1991-01-01 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：:pTK159, a multiresistance 40-kilobase (kb) plasmid, was isolated from a clinical strain of Serratia marcescens. pTK159 was nonconjugative and carried determinants for resistance to amikacin, streptomycin/spectinomycin, sulfamethoxazole and ampicillin. A physical and functional map of pTK159 was constructed. By cloning...

journal_title：Microbiology and immunology

authors： Kanno R

更新日期：1988-01-01 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：:Immunological analyses of lipopolysaccharides (LPS) isolated from Proteus strains OX2, OX19, and OXK used as antigens of Weil-Felix (WF) test, were performed by quantitative agglutination, enzyme-linked immunosorbent assay (ELISA), and immunoblotting. Antisera against LPS and whole cells (WC) of the three Proteus stra...

journal_title：Microbiology and immunology

authors： Amano K,Mizushiri S,Fujii S,Fukushi K,Suto T

更新日期：1990-01-01 00:00:00

abstract：:Samples of feces and vomit collected from patients during 13 non-bacterial gastroenteritis outbreaks which occurred in Hokkaido between 1995 and 1998 were examined by electron microscopy (EM) and reverse-transcription polymerase chain reaction (RT-PCR) for evidence of infection with human caliciviruses (HuCVs). In 6 f...

journal_title：Microbiology and immunology

authors： Ohyama T,Yoshizumi S,Sawada H,Uchiyama Y,Katoh Y,Hamaoka N,Utagawa E

更新日期：1999-01-01 00:00:00

abstract：:Importance of the overexpression of AcrAB efflux pumps in the low-level resistance of pathogens to antimicrobials requires a better understanding of the AcrAB regulation. The goal of the present research was to study the transcription of acrAB, as well as the genes that play a role in its regulation in Salmonella ente...

journal_title：Microbiology and immunology

authors： Hartog E,Ben-Shalom L,Shachar D,Matthews KR,Yaron S

更新日期：2008-12-01 00:00:00

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：:By subcutaneous inoculation of 10(8) CFU of enterohemorrhagic E. coli O157:H7, specific-pathogen-free mice revealed most of the symptoms and histological changes observed in patients. The histological changes in intestine were mainly seen in the distal parts of small intestine and the cecum. Vacuolation of villi in th...

journal_title：Microbiology and immunology

authors： Lai XH,Xu JG,Liu BY

更新日期：1991-01-01 00:00:00

abstract：:Previously we reported that mice infected recurrently with live Fusobacterim nucleatum (Fn) synthesize a significant amount of NO between 12 hr and 24 hr after the Fn injection. We now investigated whether the NO has the capability of killing Fn, a gram-negative rod periodontal pathogen. The mice were divided into thr...

journal_title：Microbiology and immunology

authors： Kato C,Mikami M,Suzuki A,Saito K

更新日期：2003-01-01 00:00:00

abstract：:Tetracycline (pp-tet), and kanamycin (pp-kan) resistance genes were cloned from a transferable R plasmid of fish pathogen Pasteurella piscicida, and complete nucleotide sequences were determined. The pp-tet was a class D Tet determinant constructed with the tetA resistance gene of 1,182 bp encoding a protein with a de...

journal_title：Microbiology and immunology

authors： Kim EH,Aoki T

更新日期：1994-01-01 00:00:00

abstract：:Porphyromonas gingivalis is a pathogen associated with adult periodontitis, which is a chronic inflammatory disease characterized by breakdown of the periodontal tissue. Dipeptidyl aminopeptidase IV (DPPIV) produced by P. gingivalis has been considered to be a potential virulence factor based on the finding that the v...

journal_title：Microbiology and immunology

authors： Kumagai Y,Yajima A,Konishi K

更新日期：2003-01-01 00:00:00

abstract：:Bacterial images can be obtained rather easily with an atomic-force microscope (AFM) in the magnification range of 5,000 to 30,000 times without any pretreatment of the specimens for such observations as chemical fixation, dehydration or staining. The bacterial shapes or the presence of flagella can be clearly recogni...

journal_title：Microbiology and immunology

authors： Umeda A,Saito M,Amako K

更新日期：1998-01-01 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：:The heat-labile toxin (HLT) of Bordetella bronchiseptica was purified successively from sonic extracts of phase I organisms grown in Stainer-Scholte medium, by partition in hydrophobic interaction, sucrose density gradient centrifugation, gel filtration through Sepharose 4B and 6B, isoelectric precipitation and isoele...

journal_title：Microbiology and immunology

authors： Endoh M,Amitani M,Nakase Y

更新日期：1986-01-01 00:00:00

abstract：:Numerical analysis of 211 strains of rapidly growing, nonphotochromogenic mycobacteria was carried out by using 116 characters. New species reported after 1981 and not yet compared with known species by numerical classification were included. At the level of 90% of the matching coefficient, the following species could...

journal_title：Microbiology and immunology

authors： Tsukamura M,Ichiyama S

更新日期：1986-01-01 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：:A recombinant pertussis DNA vaccine was described here with its immunogenicity and the ability to induce protection against B. pertussis infection in mice. Three immunodominant antigen gene fragments of pertussis, pertussis toxin subunit 1 (pts1), fragments of pertactin (prn) and filamentous hemagglutinin (fha), were ...

journal_title：Microbiology and immunology

authors： Li Q,Zhu Y,Chu J,Wang Y,Xu Y,Hou Q,Zhang S,Guo X

更新日期：2006-01-01 00:00:00