Abstract:
:Staphylococcus aureus is responsible for a large panel of infections in humans and animals. In cows, S. aureus provokes chronic intramammary infections. Little information is available about the regulation of virulence factors in bovine isolates. Moreover, oxygenation, which is low in an inflamed mammary gland, could play an important role during the infectious process. We investigated the impact of oxygen on regulatory and virulence factors transcription for three S. aureus bovine isolates cultivated in CYPG medium into a fermentor under moderate oxygenation or low oxygenation. A selective panel of regulatory factors and virulence factors was studied through their mRNA profiles by real-time PCR according to growth phases and oxygenation. RNAIII, rot and sarR genes, for the regulatory factors, and asp23 and cflA genes, for the virulence factors, were strongly expressed, whatever the oxygenation and the strains. Under low oxygenation, whatever the strain, an enhanced expression of srr, clfA and spa genes was detected. Some regulators such as sae, sarA and sigB were differentially transcribed according to the strain and the oxygenation condition. This study sustains the complexity of S. aureus genes global regulation and suggests the coexistence of different pathways that can be activated depending on the strain and the oxygen availability.
journal_name
Mol Cell Probesjournal_title
Molecular and cellular probesauthors
Ster C,Gilbert FB,Cochard T,Poutrel Bdoi
10.1016/j.mcp.2005.01.002subject
Has Abstractpub_date
2005-08-01 00:00:00pages
227-35issue
4eissn
0890-8508issn
1096-1194pii
S0890-8508(05)00014-9journal_volume
19pub_type
杂志文章abstract::alpha-SNAP is an essential component of the protein machinery responsible for membrane fusion events in different cell types. The hyh (hydrocephalus with hop gait) mouse carries a missense mutation in Napa gene that results in a point mutation (M105I) in alpha-SNAP protein. Homozygous animals for the mutant allele hav...
journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2009.07.002
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.2002.0408
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2020.101670
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2009.10.001
更新日期:2010-04-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
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journal_title:Molecular and cellular probes
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.1994.1025
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journal_title:Molecular and cellular probes
pub_type: 杂志文章,评审
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更新日期:1987-09-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2019.101440
更新日期:2019-10-01 00:00:00
abstract::The detection of hepatitis C virus (HCV) RNA by nested polymerase chain reaction (PCR) is believed to be the most reliable method to diagnose HCV infections. A pitfall of nested PCR is that it is prone to contamination. Single step reverse transcription-PCR (RT-PCR) was performed, prospectively, on 80 sera from 59 pat...
journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.1996.0024
更新日期:1996-06-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.1997.0153
更新日期:1998-04-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/s0890-8508(06)80011-3
更新日期:1991-10-01 00:00:00
abstract::In this paper we describe a reverse-transcription nested polymerase chain reaction method for detecting human astrovirus serotype 1. It has been evaluated on 56 UK diarrhoeal stool specimens and six non-UK specimens. The method has greater sensitivity than electron microscopy and may be a useful test in areas such as ...
journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.1994.1069
更新日期:1994-12-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2006.03.007
更新日期:2006-12-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2011.01.005
更新日期:2011-04-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2017.11.006
更新日期:2018-02-01 00:00:00
abstract::Several studies have shown that BK viral load in plasma and urine are reliable markers for the detection of BK virus associated nephropathy (BKVAN) in renal transplant patients. We developed a quantitative real time PCR assay based on TaqMan technology for the measurement of BK viral load in plasma and urine. Consider...
journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2013.08.001
更新日期:2013-10-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.1997.0144
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journal_title:Molecular and cellular probes
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.1993.1027
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journal_title:Molecular and cellular probes
pub_type: 杂志文章,评审
doi:10.1016/j.mcp.2021.101694
更新日期:2021-01-08 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2007.12.005
更新日期:2008-06-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.1994.1010
更新日期:1994-02-01 00:00:00
abstract::The single nucleotide polymorphism (SNP) genotyping is currently considered as a particularly valuable tool for the diagnosis of different pathologies. For this reason, over the past several years a great deal of effort has been devoted to developing accurate, rapid, and cost-effective technologies for SNP analysis. A...
journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2011.04.005
更新日期:2011-08-01 00:00:00
abstract::We have developed and evaluated an ELISA-based detection method for PCR-amplified HIV-1 DNA. The assay uses two oligonucleotide probes which are end-labelled at the 5'-end with biotin or digoxigenin, respectively. Upon solution hybridization of these probes which react with the same strand of amplified DNA product, th...
journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.1993.1054
更新日期:1993-10-01 00:00:00
abstract::Dengue virus (DENV), a member of the genus Flavivirus within the family Flaviviridae, is one of the most significant mosquito-borne viruses that causing dengue fever in human. A rapid diagnostic would be helpful to detect DENV infection in a timely manner. In the last decade, recombinase polymerase amplification (RPA)...
journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2019.06.003
更新日期:2019-08-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/j.mcp.2017.02.006
更新日期:2017-06-01 00:00:00
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journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1006/mcpr.1994.1061
更新日期:1994-10-01 00:00:00
abstract::The effects of comprehensive LNA substitution in PCR primers for amplification of human genomic DNA targets are presented in this report. Previous research with LNA in other applications has shown interesting properties for molecular hybridization including enhanced specificity in allele-specific PCR. Here we systemat...
journal_title:Molecular and cellular probes
pub_type: 杂志文章
doi:10.1016/s0890-8508(03)00062-8
更新日期:2003-10-01 00:00:00