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Uropathogenic Esche...
Uropathogenic Escherichia coli engages CD14-dependent signaling to enable bladder-macrophage-dependent control of acute urinary tract infection
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- Carey, Alison J. (författare)
- Queensland University of Technology
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- Sullivan, Matthew J. (författare)
- Griffith University
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- Duell, Ben (författare)
- Lund University,Lunds universitet,Institutionen för translationell medicin,Medicinska fakulteten,Department of Translational Medicine,Faculty of Medicine,Skåne University Hospital
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- Crossman, David K. (författare)
- University of Alabama
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- Chattopadhyay, Debasish (författare)
- University of Alabama
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- Brooks, Andrew J. (författare)
- University of Queensland
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- Tan, Chee K. (författare)
- Griffith University
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- Crowley, Michael (författare)
- University of Alabama
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- Sweet, Matthew J. (författare)
- University of Queensland
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- Schembri, Mark A. (författare)
- University of Queensland
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- Ulett, Glen C. (författare)
- University of Alabama
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(creator_code:org_t)
- 2015-08-30
- 2016
- Engelska 10 s.
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Ingår i: Journal of Infectious Diseases. - : Oxford University Press (OUP). - 0022-1899 .- 1537-6613. ; 213:4, s. 659-668
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http://dx.doi.org/10... (free)
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https://academic.oup...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Background. CD14, a coreceptor for several pattern recognition receptors and a widely used monocyte/macrophage marker, plays a key role in host responses to gram-negative bacteria. Despite the central role of CD14 in the inflammatory response to lipopolysaccharide and other microbial products and in the dissemination of bacteria in some infections, the signaling networks controlled by CD14 during urinary tract infection (UTI) are unknown. Methods. We used uropathogenic Escherichia coli (UPEC) infection of wild-type (WT) C57BL/6 and Cd14-/- mice and RNA sequencing to define the CD14-dependent transcriptional signature and the role of CD14 in host defense against UTI in the bladder. Results. UPEC induced the upregulation of Cd14 and the monocyte/macrophage-related genes Emr1/F4/80 and Csf1r/c-fms, which was associated with lower UPEC burdens in WT mice, compared with Cd14-/- mice. Exacerbation of infection in Cd14-/- mice was associated with the absence of a 491-gene transcriptional signature in the bladder that encompassed multiple host networks not previously associated with this receptor. CD14-dependent pathways included immune cell trafficking, differential cytokine production in macrophages, and interleukin 17 signaling. Depletion of monocytes/macrophages in the bladder by administration of liposomal clodronate led to higher UPEC burdens. Conclusions. This study identifies new host protective and signaling roles for CD14 in the bladder during UPEC UTI.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Mikrobiologi inom det medicinska området (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Microbiology in the medical area (hsv//eng)
Nyckelord
- CD14
- host response
- RNA sequencing
- urinary tract infection
- uropathogenic Escherichia coli
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- ref (ämneskategori)
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Carey, Alison J.
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Sullivan, Matthe ...
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Duell, Ben
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Crossman, David ...
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Chattopadhyay, D ...
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Brooks, Andrew J ...
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visa fler...
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Tan, Chee K.
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Crowley, Michael
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Sweet, Matthew J ...
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Schembri, Mark A ...
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Ulett, Glen C.
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visa färre...
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