tetano
Editor, Senior Moderator
J Infect Dis. 2013 Aug 9. [Epub ahead of print]
Influenza A virus impairs control of Mycobacterium tuberculosis co-infection through a Type I Interferon receptor dependent pathway.
Redford PS, Mayer-Barber KD, McNab FW, Stavropoulos E, Wack A, Sher A, O'Garra A.
Source
Division of Immunoregulation, Medical Research Council National Institute for Medical Research (MRC NIMR), The Ridgeway, Mill Hill, London, NW7 1AA, UK.
Abstract
Influenza, followed by severe acute bacterial pneumonia, is a major cause of mortality worldwide. Several mechanisms account for this enhanced susceptibility, including increased production of Type I IFN. In individuals infected with Mycobacterium tuberculosis, the influence of acute viral infections on tuberculosis progression is unclear. We show that prior exposure of mice to influenza A, followed by M. tuberculosis infection, leads to enhanced mycobacterial growth and decreased survival. Following M. tuberculosis/influenza co-infection, mycobacterial growth is enhanced by a Type I IFN signalling pathway. Our findings highlight the detrimental impact influenza infection can have prior to, or during M. tuberculosis infection.
PMID:
23935205
[PubMed - as supplied by publisher]
http://www.ncbi.nlm.nih.gov/pubmed/23935205
Influenza A virus impairs control of Mycobacterium tuberculosis co-infection through a Type I Interferon receptor dependent pathway.
Redford PS, Mayer-Barber KD, McNab FW, Stavropoulos E, Wack A, Sher A, O'Garra A.
Source
Division of Immunoregulation, Medical Research Council National Institute for Medical Research (MRC NIMR), The Ridgeway, Mill Hill, London, NW7 1AA, UK.
Abstract
Influenza, followed by severe acute bacterial pneumonia, is a major cause of mortality worldwide. Several mechanisms account for this enhanced susceptibility, including increased production of Type I IFN. In individuals infected with Mycobacterium tuberculosis, the influence of acute viral infections on tuberculosis progression is unclear. We show that prior exposure of mice to influenza A, followed by M. tuberculosis infection, leads to enhanced mycobacterial growth and decreased survival. Following M. tuberculosis/influenza co-infection, mycobacterial growth is enhanced by a Type I IFN signalling pathway. Our findings highlight the detrimental impact influenza infection can have prior to, or during M. tuberculosis infection.
PMID:
23935205
[PubMed - as supplied by publisher]
http://www.ncbi.nlm.nih.gov/pubmed/23935205