Abstract:
:Phenethyl alcohol, at the maximum concentration which did not inhibit growth (0.3% [vol/vol]), inhibited the production of alpha-lysin and exoproteases but not that of delta-lysin in Staphylococcus aureus Wood 46. The inhibition of alpha-lysin was reversible, and transient accumulation of cell-associated alpha-lysin occurred in the presence of PEA. A precursor of alpha-lysin ca. 3,000 daltons larger than extracellular alpha-lysin was immunologically detected in the sodium dodecyl sulfate extracts of membranes and whole cells of phenethyl alcohol-treated S. aureus cultures. Also, a degraded form of alpha-lysin was detected in membranes prepared from cells lysed by lysostaphin but not in membranes from cells lysed with an X-press.
journal_name
Infect Immunjournal_title
Infection and immunityauthors
Lee KY,Birkbeck THdoi
10.1128/IAI.47.1.112-117.1985subject
Has Abstractpub_date
1985-01-01 00:00:00pages
112-7issue
1eissn
0019-9567issn
1098-5522journal_volume
47pub_type
杂志文章abstract::Bacteria alter their cell surface in response to changing environments, including those encountered upon invasion of a host during infection. One alteration that occurs in several Gram-positive pathogens is the presentation of cell wall-anchored components of the iron-regulated surface determinant (Isd) system, which ...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.00397-15
更新日期:2015-09-01 00:00:00
abstract::Several trivalent cations, including lanthanum (La3+), inhibited the secretion (enterosorption) induced by the enterotoxins of Vibrio cholerae and Escherichia coli in the rabbit ileum in vivo. High concentrations (greater than 10 mM) of La3+ were required to inhibit cholera enterotoxin (CE)-induced enterosorption, pro...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.11.5.1038-1044.1975
更新日期:1975-05-01 00:00:00
abstract::Lesions caused by Leishmania amazonensis normally heal, but relapses occur due to parasite persistence in host tissues. It has been proposed that infection of fibroblasts plays an important role in this process by providing the parasites with a safe haven in which to replicate. However, most previous studies have focu...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/iai.70.8.4571-4580.2002
更新日期:2002-08-01 00:00:00
abstract::Protective immunity against Toxoplasma gondii is known to be mediated mainly by T lymphocytes and gamma interferon (IFN-gamma). The contribution of CD4(+) and CD8(+) T-lymphocyte subsets to protective immune responses against T. gondii infection, triggered by a GRA1 (p24) DNA vaccine, was assessed in this study. In vi...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/iai.71.1.309-316.2003
更新日期:2003-01-01 00:00:00
abstract::Intestinal mucus is postulated to play a role in preventing colonization of the gastrointestinal tract by microbial pathogens. To evaluate the ability of both crude mucus and purified mucin, a glycoprotein of goblet cell origin, to inhibit mucosal adherence of enteric pathogens, we examined whether mucus and mucin der...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.56.9.2437-2442.1988
更新日期:1988-09-01 00:00:00
abstract::The hemolytic activity of the thermostable direct hemolysin produced by Vibrio parahaemolyticus was inhibited by a ganglioside mixture. The ganglioside component which inhibited the hemolysin was not FM1 ganglioside. ...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.12.4.931-933.1975
更新日期:1975-10-01 00:00:00
abstract::Streptococcus pneumoniae is the most common pathogen associated with otitis media. To examine the role of Toll-like receptor 2 (TLR2) in host defense against Streptococcus pneumoniae infection in the middle ear, wild-type (WT; C57BL/6) and TLR2-deficient (TLR2(-/-)) mice were inoculated with Streptococcus pneumoniae (...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.00204-09
更新日期:2009-07-01 00:00:00
abstract::The recently introduced choleragen-induced rat foot edema model has been employed as a bioassay for evaluating the immunogenicity of three purified preparations containing cholera exo-enterotoxin antigen, choleragen, choleragenoid, and Formalin-treated choleragen (formagen). The results indicated that choleragen evoke...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.1.5.468-473.1970
更新日期:1970-05-01 00:00:00
abstract::Heart and muscle tissues appear to be specific target organs for the in vivo inhibition of protein synthesis by diphtheria toxin. ...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.2.5.686-688.1970
更新日期:1970-11-01 00:00:00
abstract::The major merozoite surface protein of Plasmodium falciparum (PfMSP1) is a candidate antigen for a malaria vaccine. A 19-kDa C-terminal processing product of PfMSP1 (PfMSP1(19)) is composed of two domains sharing a cysteine-rich motif with epidermal growth factor (EGF) and is the target of monoclonal antibodies which ...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.63.2.456-466.1995
更新日期:1995-02-01 00:00:00
abstract::Naegleria fowleri produces fatal meningoencephalitis in humans and in experimentally infected laboratory animals. The course of the disease in mice is dependent upon the infecting dose of amoebae, route of inoculation, and prior exposure to Naegleria antigens. DUB/ICR mice were immunized by various routes and antigen ...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.16.3.817-820.1977
更新日期:1977-06-01 00:00:00
abstract::Candida albicans is a major opportunistic pathogen in immunocompromised patients. Production of proinflammatory cytokines by host cells in response to C. albicans plays a critical role in the activation of immune cells and final clearance of the organism. Invasion of host cells and tissues is considered one of the vir...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.73.8.4588-4595.2005
更新日期:2005-08-01 00:00:00
abstract::Routine culture of endothelial cells currently includes the use of heparin, which significantly reduces cell doubling time and increases cell population size. Heparin protects cultured arterial endothelial cells from damage by toxic oxygen metabolites produced by the action of xanthine and xanthine oxidase. Because of...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.59.12.4505-4510.1991
更新日期:1991-12-01 00:00:00
abstract::In contrast to infection of superficial tissues, Streptococcus pyogenes infection of deeper tissue can be associated with a significantly diminished inflammatory response, suggesting that this bacterium has the ability to both promote and suppress inflammation. To examine this, we analyzed the behavior of an S. pyogen...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.00420-09
更新日期:2009-11-01 00:00:00
abstract::Toxoplasma gondii infection in pregnant women may result in abortion or in fetal teratogenesis; however, the underlying mechanisms are still unclear. In this paper, based on a murine model, we showed that maternal infection with RH strain T. gondii tachyzoites induced elevated production of reactive oxygen species (RO...
journal_title:Infection and immunity
pub_type: 杂志文章,收录出版
doi:10.1128/IAI.06295-11
更新日期:2012-06-01 00:00:00
abstract::The 23-membered Esx protein family is involved in the host-pathogen interactions of Mycobacterium tuberculosis. These secreted proteins are among the most immunodominant antigens recognized by the human immune system and have thus been used to develop vaccines and immunodiagnostic tests for tuberculosis (TB). Gene pai...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.05344-11
更新日期:2011-10-01 00:00:00
abstract::Bile aspirated from chicken gall bladders was found to contain substances neutralizing Newcastle disease virus (NDV). Nonspecific factors were present in the bile, probably the bile acids, which caused a reduction in the infectivity of the virus. Specific anti-NDV activity was found in the bile of birds that had been ...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.11.4.692-697.1975
更新日期:1975-04-01 00:00:00
abstract::A2G mice are genetically resistant to lethal infection with neurotropic and pneumotropic influenza viruses. A possible immunological explanation for this resistance was sought by assessing the effect of cyclophosphamide and X irradiation immunosuppression on the infection of A2G mice with lethal doses of neurovirulent...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.11.3.576-587.1975
更新日期:1975-03-01 00:00:00
abstract::The presence of lipopolysaccharide (LPS) in gram-negative bacterial repeats-in-toxin (RTX) toxin preparations, as well as the harsh conditions required to remove it, suggests that LPS may complex with RTX toxins. Concentrated culture supernatant (CCS) preparations of the RTX toxin Pasteurella haemolytica leukotoxin (L...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.67.6.2920-2927.1999
更新日期:1999-06-01 00:00:00
abstract::Mycobacterium marinum grows at an optimal temperature of 33 degrees C, far lower than that for M. tuberculosis. Consequently, M. marinum infection of mammals is restricted largely to the cooler surfaces of the body, such as the extremities, but it causes a systemic infection in a large number of poikilothermic animals...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.65.2.767-773.1997
更新日期:1997-02-01 00:00:00
abstract::The mammalian host response to infection includes the production and secretion of antimicrobial peptides from phagocytes and epithelial cells. Protegrins, a group of broadly microbicidal peptides isolated originally from porcine neutrophil lysates, were found to be stored as inactive proforms in porcine neutrophil gra...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.66.8.3611-3617.1998
更新日期:1998-08-01 00:00:00
abstract::Candida albicans serotype A (C. albicans A) possesses a specific antigen, designated antigen 6, which resides in mannans on the cell surface. To determine the role of the mannan moiety of the C. albicans cell wall in adherence to buccal epithelial cells, we used antigen 6-deficient mutants which had been isolated by s...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.60.6.2493-2499.1992
更新日期:1992-06-01 00:00:00
abstract::The rationale for the present study was to determine how different species of bacteria interact with cells of the human meninges in order to gain information that would have broad relevance to understanding aspects of the innate immune response in the brain. Neisseria lactamica is an occasional cause of meningitis in ...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.00644-06
更新日期:2006-11-01 00:00:00
abstract::The enzyme-linked immunosorbent assay technique was used to quantitate, in milligrams per milliliter, anti-colonization factor antigen/I (CFA/I) immunoglobulin G (IgG) in acute- and convalescent-phase sera of individuals who experienced diarrhea associated with CFA/I-positive enterotoxigenic Escherichia coli. Purified...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.27.2.525-531.1980
更新日期:1980-02-01 00:00:00
abstract::Total and insoluble dextransucrase activities were measured in cell-associated and supernatant fractions of Streptococcus mutans GS-5 grown in several media. Although the amount of cell-associated and supernatant activity varied greatly as a function of medium, the total activity appeared constant. The distribution of...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.18.3.629-635.1977
更新日期:1977-12-01 00:00:00
abstract::Staphylococcus aureus nasal carriage is a risk factor for infection in humans, particularly in the hospital environment. Attenuation of carriage has proven effective in reducing the prevalence of infection in some high-risk groups. To study staphylococcal factors that influence nasal colonization, a mouse model of S. ...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.67.10.5001-5006.1999
更新日期:1999-10-01 00:00:00
abstract::An antigenic complex has been isolated in a highly purified from from the Melvin strain of Neisseria gonorrhoeae. The complex has a molecular weight of 9.3 x 10(6) and on sodium dodecyl sulfate-polyacrylamide gel electrophoresis was found to consist of several subunits; the most predominant had the following molecular...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.25.2.635-644.1979
更新日期:1979-08-01 00:00:00
abstract::Previous studies have shown that tumor necrosis factor alpha (TNF-alpha) plays a pathophysiologic role in sepsis induced in rat pups by group B streptococci (GBS). In this model, TNF-alpha is also partially responsible for the induction of interleukin-6 (IL-6). The present study was undertaken to investigate the role ...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.62.11.4997-5002.1994
更新日期:1994-11-01 00:00:00
abstract::We have previously demonstrated the existence of Klebsiella pneumoniae clinical isolates deficient in the lipopolysaccharide O side chain, the major factor for resistance to complement-mediated killing in this bacterial species. These isolates are complement resistant, and their mechanisms to resist complement were in...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/iai.68.2.953-955.2000
更新日期:2000-02-01 00:00:00
abstract::Bactericidal activity and binding of a 57,000-dalton cationic antimicrobial neutrophil granule protein (CAP57) are determined by the presence on bacteria of O-antigen polysaccharide chains and the availability of negatively charged groups in the lipid A region, the inner core region, or both regions of lipopolysacchar...
journal_title:Infection and immunity
pub_type: 杂志文章
doi:10.1128/IAI.56.6.1589-1592.1988
更新日期:1988-06-01 00:00:00