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Chapter 15 : Pathoadaptive Mutations in Uropathogenic

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Abstract:

Adaptive evolution of bacterial pathogens happens through the action of positive selection on random genetic changes, affecting their frequency within the compartment they infect (e.g., the urinary tract) or during the transmission to new hosts. The evolution of virulence, in general, results in the ability of the microorganism to cause clinically manifested damage of the host, i.e., diseases like cystitis or pyelonephritis. This, in turn, reflects the microbial fitness during the infection – the ability to survive and reproduce during the infection itself, at the level and in a mode to induce the tissue damage. Driving forces and mechanisms behind the evolution of microbial virulence can be understood from the perspective of bacterial ecology and by comparative analysis of the microorganisms that are able or unable to cause the infection.

Citation: Sokurenko E. 2017. Pathoadaptive Mutations in Uropathogenic , p 331-357. In Mulvey M, Klumpp D, Stapleton A (ed), Urinary Tract Infections: Molecular Pathogenesis and Clinical Management, Second Edition. ASM Press, Washington, DC. doi: 10.1128/microbiolspec.UTI-0020-2015
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Figures

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Figure 1

Eco-Evo categories of . UPEC = uropathogenic , EHEC = enterohemorrhagic , EPEC = enteropathogenic .

Citation: Sokurenko E. 2017. Pathoadaptive Mutations in Uropathogenic , p 331-357. In Mulvey M, Klumpp D, Stapleton A (ed), Urinary Tract Infections: Molecular Pathogenesis and Clinical Management, Second Edition. ASM Press, Washington, DC. doi: 10.1128/microbiolspec.UTI-0020-2015
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Figure 2

UPEC ecology.

Citation: Sokurenko E. 2017. Pathoadaptive Mutations in Uropathogenic , p 331-357. In Mulvey M, Klumpp D, Stapleton A (ed), Urinary Tract Infections: Molecular Pathogenesis and Clinical Management, Second Edition. ASM Press, Washington, DC. doi: 10.1128/microbiolspec.UTI-0020-2015
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Figure 3

Different genetic mechanisms of evolution of virulence exemplified by an adaptive increase in bacterial adhesiveness. Green surface = gastrointestinal mucosa; Gray surface = urothelium.

Citation: Sokurenko E. 2017. Pathoadaptive Mutations in Uropathogenic , p 331-357. In Mulvey M, Klumpp D, Stapleton A (ed), Urinary Tract Infections: Molecular Pathogenesis and Clinical Management, Second Edition. ASM Press, Washington, DC. doi: 10.1128/microbiolspec.UTI-0020-2015
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Figure 4

Type 1 fimbriae of and functional variability of the FimH adhesin.

Citation: Sokurenko E. 2017. Pathoadaptive Mutations in Uropathogenic , p 331-357. In Mulvey M, Klumpp D, Stapleton A (ed), Urinary Tract Infections: Molecular Pathogenesis and Clinical Management, Second Edition. ASM Press, Washington, DC. doi: 10.1128/microbiolspec.UTI-0020-2015
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Figure 5

Shear-dependent () and conformational () properties of FimH adhesin.

Citation: Sokurenko E. 2017. Pathoadaptive Mutations in Uropathogenic , p 331-357. In Mulvey M, Klumpp D, Stapleton A (ed), Urinary Tract Infections: Molecular Pathogenesis and Clinical Management, Second Edition. ASM Press, Washington, DC. doi: 10.1128/microbiolspec.UTI-0020-2015
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Figure 6

Strategies of detection of patho-adapted gene variants (red).

Citation: Sokurenko E. 2017. Pathoadaptive Mutations in Uropathogenic , p 331-357. In Mulvey M, Klumpp D, Stapleton A (ed), Urinary Tract Infections: Molecular Pathogenesis and Clinical Management, Second Edition. ASM Press, Washington, DC. doi: 10.1128/microbiolspec.UTI-0020-2015
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References

/content/book/10.1128/9781555817404.chap15

Tables

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TABLE 1

Pathoadaptive genes inactivation in long-term bladder colonization trial (premature stop-codons; frame-shift mutations, deletions)

Citation: Sokurenko E. 2017. Pathoadaptive Mutations in Uropathogenic , p 331-357. In Mulvey M, Klumpp D, Stapleton A (ed), Urinary Tract Infections: Molecular Pathogenesis and Clinical Management, Second Edition. ASM Press, Washington, DC. doi: 10.1128/microbiolspec.UTI-0020-2015
Generic image for table
TABLE 2

Pathoadaptive gene variations found by genome-wide screening

Citation: Sokurenko E. 2017. Pathoadaptive Mutations in Uropathogenic , p 331-357. In Mulvey M, Klumpp D, Stapleton A (ed), Urinary Tract Infections: Molecular Pathogenesis and Clinical Management, Second Edition. ASM Press, Washington, DC. doi: 10.1128/microbiolspec.UTI-0020-2015

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