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Recent Advances in Helicobacter pylori Replication: Possible Implications in Adaptation to a Pathogenic Lifestyle and Perspectives for Drug Design

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Molecular Pathogenesis and Signal Transduction by Helicobacter pylori

Part of the book series: Current Topics in Microbiology and Immunology ((CT MICROBIOLOGY,volume 400))

Abstract

DNA replication is an important step in the life cycle of every cell that ensures the continuous flow of genetic information from one generation to the next. In all organisms, chromosome replication must be coordinated with overall cell growth. Helicobacter pylori growth strongly depends on its interaction with the host, particularly with the gastric epithelium. Moreover, H. pylori actively searches for an optimal microniche within a stomach, and it has been shown that not every microniche equally supports growth of this bacterium. We postulate that besides nutrients, H. pylori senses different, unknown signals, which presumably also affect chromosome replication to maintain H. pylori propagation at optimal ratio allowing H. pylori to establish a chronic, lifelong infection. Thus, H. pylori chromosome replication and particularly the regulation of this process might be considered important for bacterial pathogenesis. Here, we summarize our current knowledge of chromosome and plasmid replication in H. pylori and discuss the mechanisms responsible for regulating this key cellular process. The results of extensive studies conducted thus far allow us to propose common and unique traits in H. pylori chromosome replication. Interestingly, the repertoire of proteins involved in replication in H. pylori is significantly different to that in E. coli, strongly suggesting that novel factors are engaged in H. pylori chromosome replication and could represent attractive drug targets.

The dream of a bacterium is to become two bacteria.

François Jacob, 1965.

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Acknowledgements

This work was supported by research grant SONATA BIS3 from the National Science Centre (DEC-2013/10/E/NZ1/00718).

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Correspondence to Anna Zawilak-Pawlik .

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Zawilak-Pawlik, A., Zakrzewska-Czerwińska, J. (2017). Recent Advances in Helicobacter pylori Replication: Possible Implications in Adaptation to a Pathogenic Lifestyle and Perspectives for Drug Design. In: Tegtmeyer, N., Backert, S. (eds) Molecular Pathogenesis and Signal Transduction by Helicobacter pylori. Current Topics in Microbiology and Immunology, vol 400. Springer, Cham. https://doi.org/10.1007/978-3-319-50520-6_4

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