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Current Respiratory Medicine Reviews


ISSN (Print): 1573-398X
ISSN (Online): 1875-6387

Formation of Mycobacterial Pellicles In Vitro and their Possible Impact on Tuberculosis Infection

Author(s): Mario Alberto Flores-Valdez, Michel de Jesus Aceves-Sanchez, Saira Alejandra Montero-Perez, Perla Jazmín Vega-Dominguez and Cesar Pedroza-Roldan

Volume 10, Issue 2, 2014

Page: [109 - 114] Pages: 6

DOI: 10.2174/1573398X10666140717185630

Price: $65


Studies about in vitro pellicle formation by slow-growing, pathogenic mycobacteria has just gained a new momentum, and in Mycobacterium tuberculosis, cells growing in this environment showed enhanced tolerance to antitubercular drugs. c-di-GMP, an ubiquitous bacterial second messenger, regulates phenotypes such as motility, biofilm formation and expression of acute virulence factors in several microorganisms. Recently, enzymes encoded by Rv1354c and Rv1357c were shown to produce and degrade c-di-GMP in vitro, respectively. Here we review the processes in which c-di-GMP regulates biofilm production and virulence in some human pathogens, discuss the possibility of these same processes existing in Mycobacterium tuberculosis, and how these mechanisms could impact the outcome of tuberculosis infection.

Keywords: Biofilm, c-di-GMP, EAL, GGDEF, virulence.

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