Capsule of Streptococcus pyogenes is essential for delayed death of mice in a model of streptococcal toxic shock syndrome.

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

authors： Kuwae T,Kurata M

更新日期：1984-01-01 00:00:00

abstract：:The effects of recombinant human interleukin-2 (rIL-2) administered prophylactically on the death of CBA/J mice challenged with Klebsiella pneumoniae 27 intraperitoneally were examined. rIL-2 administered subcutaneously at 20 micrograms per mouse for 7 days enhanced survival after a lethal challenge. The injection of ...

journal_title：Microbiology and immunology

authors： Iizawa Y,Nakao M,Kondo M,Yamazaki T

更新日期：1990-01-01 00:00:00

abstract：:The amino acid sequence of the principal neutralizing determinant (PND) of 224 cases of human immunodeficiency virus type 1 (HIV-1) was determined and the most frequently occurring sequence was used as a peptide antigen for studying virus-specific antibody responses. In our present study, a linear peptide of the most ...

journal_title：Microbiology and immunology

authors： Bukawa H,Fukushima J,Hamajima K,Kimura M,Tsuji T,Xin KQ,Okuda K

更新日期：1995-01-01 00:00:00

abstract：:Rabies virus Nishigahara strain causes lethal infection in adult mice after intracerebral inoculation. On the other hand, the RC-HL strain, derived from the Nishigahara strain, does not cause lethal infection in adult mice. We previously demonstrated that a chimeric virus, R(G), with the open reading frame of the G ge...

journal_title：Microbiology and immunology

authors： Yamada K,Ito N,Takayama-Ito M,Sugiyama M,Minamoto N

更新日期：2006-01-01 00:00:00

abstract：:We found that mycoplasma-infected cells have a higher ability to metastasize in vivo than non-mycoplasma-infected cells. To investigate this phenomenon, we obtained a monoclonal antibody, MAb 243-5, by immunization with Mycoplasma arginini-infected RPMI 4788 cells. This MAb recognized a mycoplasmal protein with an MW ...

journal_title：Microbiology and immunology

authors： Ushio S,Iwaki K,Taniai M,Ohta T,Fukuda S,Sugimura K,Kurimoto M

更新日期：1995-01-01 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

authors： Tominaga A,Matsumoto M,Takahashi T,Harada N,Takatsu K

更新日期：1986-01-01 00:00:00

abstract：:An antiserum against a fraction enriched for scrapie-associated fibrils (SAF), was examined for its effects on scrapie incubation period by inoculating mice either intraperitoneally or intracerebrally with various dilutions of the serum mixed with scrapie-infected mouse brain homogenate. After intraperitoneal inoculat...

journal_title：Microbiology and immunology

authors： Ito M,Shinagawa M,Doi S,Sasaki S,Isomura H,Takahashi K,Goto H,Sato G

更新日期：1988-01-01 00:00:00

abstract：:Direct stimulations of murine B lymphocytes with synthetic lipid A analogs and synthetic muramyl dipeptide (MDP) derivatives were studied using a limiting dilution assay system. Synthetic lipid A analogs, GLA-27 and GLA-40, when conjugated with bovine serum albumin (BSA) had the ability to induce B cell clonal expansi...

journal_title：Microbiology and immunology

authors： Saito-Taki T,Nakano M,Kiso M,Hasegawa A

更新日期：1985-01-01 00:00:00

abstract：:Cauliflower mosaic virus (CaMV) open reading frame (ORF) VI product (P6) has been shown to be the major constituent of viral inclusion body, to function as a post-transcriptional transactivator, and to be essential for infectivity on whole plants. Although these findings suggest that P6 has an important role in viral ...

journal_title：Microbiology and immunology

authors： Kobayashi K,Tsuge S,Nakayashiki H,Mise K,Furusawa I

更新日期：1998-01-01 00:00:00

abstract：:We investigated here the kinetics of natural killer (NK) cells and extrathymic T cells, which include intermediate CD3 cells and gamma delta T cells, in the cord factor-induced granulomatous inflammation of the lungs and liver. In Balb/c mice, pulmonary inflammation elevated the proportion of NK cells and that of extr...

journal_title：Microbiology and immunology

authors： Tabata A,Kaneda K,Watanabe H,Abo T,Yano I

更新日期：1996-01-01 00:00:00

abstract：:Water-insoluble glucan (WIG) produced by mutans streptococci, an important cariogenic pathogen, plays an important role in the formation of dental biofilm and adhesion of biofilm to tooth surfaces. Glucanohydrolases, such as mutanase (α-1,3-glucanase) and dextranase (α-1,6-glucanase), are able to hydrolyze WIG. The pu...

journal_title：Microbiology and immunology

authors： Otsuka R,Imai S,Murata T,Nomura Y,Okamoto M,Tsumori H,Kakuta E,Hanada N,Momoi Y

更新日期：2015-01-01 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：: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：:Butanol-extracted water-soluble adjuvant (Bu-WSA) obtained from Bacterionema matruchotii was cultured with peripheral blood mononuclear cells (PBM) in the presence of sub- and/or supra-optimal mitogenic concentrations of concanavalin A (Con A). The addition of Bu-WSA resulted in increased tritiated thymidine incorpora...

journal_title：Microbiology and immunology

authors： Nitta T,Okumura S,Tsushi M,Nakano M

更新日期：1982-01-01 00:00:00

abstract：:Two methods of TSS diagnosis were evaluated: comparison of symptoms with clinical criteria and monitoring for evidence of selective activation of Vbeta2(+) T cells by the causative toxin, TSS toxin-1 (TSST-1). Ten patients with acute and systemic febrile infections caused by Staphylococcus aureus were monitored for in...

journal_title：Microbiology and immunology

authors： Matsuda Y,Kato H,Ono E,Kikuchi K,Muraoka M,Takagi K,Imanishi K,Itoh S,Itoh T,Ogawa T,Nitta K,Inokuchi S,Hibi T,Ohta H,Uchiyama T

更新日期：2008-11-01 00:00:00

abstract：:In Streptococcus pneumoniae, heat shock induces the synthesis of 65-, 73-, and 84-kDa proteins, and ethanol shock induces a 104-kDa protein. In this study, the 65-, 84-, and 104-kDa proteins were identified as members of the GroEL, ClpL and alcohol dehydrogenase families, respectively, and the general properties of th...

journal_title：Microbiology and immunology

authors： Choi IH,Shim JH,Kim SW,Kim SN,Pyo SN,Rhee DK

更新日期：1999-01-01 00:00:00

abstract：:To determine the extent of genetic diversity of Salmonella choleraesuis subspecies choleraesuis serovar Infantis and whether environmental isolates were similar or identical to human isolates, a total of 110 isolates from humans, broiler samples, egg production facilities, riverwater, sewage, and chicken meat were ana...

journal_title：Microbiology and immunology

authors： Murakami K,Horikawa K,Otsuki K

更新日期：1999-01-01 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：:Inhibition of hemagglutinin (HA) activity in a membrane fraction of Bacteroides gingivalis was examined using various compounds. Leupeptin and anti-pain inhibited the HA activity at nM order. This potency was lost when the aldehyde group of leupeptin was converted to an alcohol moiety. Irreversible protease inhibitors...

journal_title：Microbiology and immunology

authors： Nishikata M,Yoshimura F,Nodasaka Y

更新日期：1989-01-01 00:00:00

abstract：:The growing process and the fine structure of the cross wall of Staphylococcus were investigated by electron microscopy. Examination of the tangentially sectioned cross wall revealed that it was initially synthesized as a thin cell wall layer by an invaginated cytoplasmic membrane. The wall thickness soon increased by...

journal_title：Microbiology and immunology

authors： Amako K,Umeda A

更新日期：1984-01-01 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：:A polymyxin B (PXB)-resistant mutant of Klebsiella pneumoniae O3 was isolated. Lipopolysaccharide (LPS) extracted from the PXB-resistant isolate bound little PXB, although LPS from the parental strain did. The 31P nuclear magnetic resonance (NMR) spectrum of PXB-resistant type LPS showed that it contained much less of...

journal_title：Microbiology and immunology

authors： Yokochi T,Inoue Y,Jiang GZ,Kato Y,Sugiyama T,Kawai M,Fukada M,Takahashi K

更新日期：1994-01-01 00:00:00

abstract：:The combination of a Legionella pneumophila culture isolation technique and macrophage infectivity potentiator (mip) gene-specific nested polymerase chain reaction (PCR) is pivotal for effective routine use in an environmental water system laboratory. Detection of Legionella organisms in 169 environmental samples was ...

journal_title：Microbiology and immunology

authors： Nintasen R,Utrarachkij F,Siripanichgon K,Bhumiratana A,Suzuki Y,Suthienkul O

更新日期：2007-01-01 00:00:00

abstract：:The pea cyv1 gene is a yet-to-be-identified recessive resistance gene that inhibits the infection of clover yellow vein virus (ClYVV). Previous studies confirmed that the cell-to-cell movement of ClYVV is inhibited in cyv1-carrying pea plants; however, the effect of cyv1 on viral replication remains unknown. In this s...

journal_title：Microbiology and immunology

authors： Taninaka Y,Nakahara KS,Hagiwara-Komoda Y

更新日期：2020-01-01 00:00:00

abstract：:Germfree (GF) F344 rats developed severe adjuvant-induced arthritis with a 100% incidence after a single intradermal injection of heat-killed Mycobacterium bovis (BCG). Specific pathogene-free (SPF) rats developed less severe arthritis with a lower incidence. The rats colonized with Escherichia coli or Bacteroides dev...

journal_title：Microbiology and immunology

authors： Kohashi O,Kohashi Y,Takahashi T,Ozawa A,Shigematsu N

更新日期：1985-01-01 00:00:00

abstract：:We cloned and sequenced two new Verotoxin 2 (VT2) variant genes: one from an Escherichia coli strain from a case of bovine diarrhea and the other from an E. coli strain from a patient with diarrhea. The nucleotide and amino acid sequences of these two genes were highly homologous with, but distinct from those of the V...

journal_title：Microbiology and immunology

authors： Lin Z,Yamasaki S,Kurazono H,Ohmura M,Karasawa T,Inoue T,Sakamoto S,Suganami T,Takeoka T,Taniguchi Y

更新日期：1993-01-01 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：:Because cytotoxic T lymphocytes (CTLs) play an important role in the specific immunotherapy of hepatitis C virus (HCV) infection, a series of CTL epitopes has been defined from HCV genotype 1a or 1b protein. Here, we attempted to identify HCV2a-derived epitopes that are capable of inducing HLA-A2-restricted and peptid...

journal_title：Microbiology and immunology

authors： Wang Y,Takao Y,Harada M,Yutani S,Ide T,Sata M,Itoh K,Yamada A

更新日期：2006-01-01 00:00:00

abstract：:A CpG-enriched recombinant plasmid (pUC18-CpG) as an adjuvant of FMD killed vaccine was tested for immunization and vaccination challenge in a porcine model. Our preliminary results had indicated that the recombinant plasmid could enhance the humoral immune response triggered by the traditional oil-adjuvant vaccine af...

journal_title：Microbiology and immunology

authors： Guo X,Jia H,Zhang Q,Yuan W,Zhu G,Xin T,Zhu H,Sánchez-Vizcaíno JM

更新日期：2012-05-01 00:00:00

abstract：:Interleukin 5 (IL-5), a lymphokine produced by helper T cells, is involved in the regulation of growth and differentiation of B cells and other hematopoietic cells. To elucidate IL-5-mediated intracellular mechanisms, we have established IL-5-dependent and -independent murine early B cell lines, J6 and MJ88-1, respect...

journal_title：Microbiology and immunology

authors： Migita M,Yamaguchi N,Katoh S,Mita S,Matsumoto R,Sonoda E,Tsuchiya H,Matsuda I,Tominaga A,Takatsu K

更新日期：1990-01-01 00:00:00