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How diarrhoea pathogens multiply in our intestines
Our large intestines are heavily populated by bacteria and as such really do not have space for newcomers. Despite this, Salmonella are able to multiply there. In a project funded by the Swiss National Science Foundation, a group led by Wolf-Dietrich Hardt from ETH Zurich is uncovering the remarkable strategies used by the feared diarrhoea pathogens. A small number of the Salmonella sacrifice themselves by attacking the intestinal cells. Although this kills them, they succeed in causing inflammation. The inflamed intestine excretes mucus, which ultimately accelerates the growth of the remaining salmonella in the intestine. Thus the bacteria benefit from the death of their sister cells.
Prof. Wolf-Dietrich Hardt
Institute of Microbiology
Department of Biology, ETH Zurich
ETH Hönggerberg, HCI G 417
Wolfgang-Pauli Str. 10
CH-8093 Zurich
E-mail: hardt@micro.biol.ethz.ch
Tel.: +41 44 632 51 43
Fax: +41 44 632 11 29
http://www.micro.biol.ethz.ch
http://www.snf.ch > Media > Picture of the month
http://www.micro.biol.ethz.ch
Salmonella (red) have to prevail against the intestinal flora (small green dashes). They will succee ...
Source: © Bärbel Stecher and Wolf-Dietrich Hardt, Institute of Microbiologye ETH Zurich/SNSF
Criteria of this press release:
Medicine, Nutrition / healthcare / nursing
transregional, national
Miscellaneous scientific news/publications, Research projects
English
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