The Role Of The Stringent Components In The Regulation Of Virulence

Krause, Klaudyna; Milewska, Klaudia; Szalewska-Pałasz, Agnieszka

doi:10.21307/PM-2019.58.3.247

Abstract

Celem istnienia każdego organizmu żywego jest przetrwanie i przekazanie materiału genetycznego komórkom potomnym. Patogen po infekcji gospodarza musi pokonać jego barierę obronną. Wykorzystuje do tego cechy związane z wirulencją, takie jak możliwości inwazji komórek i tkanek, przywieranie do powierzchni, wytwarzanie toksyn. Liczne patogeny łączą swoje szlaki wirulencji z ogólnymi mechanizmami umożliwiającymi adaptację do zmieniających się warunków środowiska. Wiele z nich wykorzystuje w tym celu globalny mechanizm reakcji bakterii na stany stresu – odpowiedź ścisłą. W artykule omówiono, w jaki sposób komponenty odpowiedzi ścisłej wpływają na wirulencję bakterii patogennych.

1. Wprowadzenie. 2. Metabolizm (p)ppGpp. 2.1. Cele regulatorowe (p)ppGpp. 3. Wirulencja a adaptacja do niekorzystnych warunków środowiska. 4. Udział odpowiedzi ścisłej w wirulencji bakterii Gram-ujemnych. 4.1. Escherichia coli EHEC. 4.2. Escherichia coli UPEC. 4.3. Shigella flexneri. 4.4. Vibrio cholerae. 4.5. Salmonella enterica. 4.6. Pseudomonas aeruginosa. 4.7. Francisella tularensis. 4.8. Bordetella pertussis. 5. Udział odpowiedzi ścisłej w wirulencji u bakterii Gram-dodatnich. 5.1. Enterococcus faecalis. 5.2. Bacillus anthracis. 5.3. Staphylococcus aureus. 5.4. Streptococcus pyogenes. 5.5. Listeria monocytogenes. 6. Wpływ odpowiedzi ścisłej na wirulencję Mycobacterium tuberculosis. 7. Podsumowanie

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The Role Of The Stringent Components In The Regulation Of Virulence

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