First Author | Kapina MA | Year | 2011 |
Journal | PLoS One | Volume | 6 |
Issue | 7 | Pages | e21878 |
PubMed ID | 21789190 | Mgi Jnum | J:174931 |
Mgi Id | MGI:5141534 | Doi | 10.1371/journal.pone.0021878 |
Citation | Kapina MA, et al. (2011) Interleukin-11 drives early lung inflammation during Mycobacterium tuberculosis infection in genetically susceptible mice. PLoS One 6(7):e21878 |
abstractText | IL-11 is multifunctional cytokine whose physiological role in the lungs during pulmonary tuberculosis (TB) is poorly understood. Here, using in vivo administration of specific antibodies against IL-11, we demonstrate for the first time that blocking IL-11 diminishes histopathology and neutrophilic infiltration of the lung tissue in TB-infected genetically susceptible mice. Antibody treatment decreased the pulmonary levels of IL-11 and other key inflammatory cytokines not belonging to the Th1 axis, and down-regulated IL-11 mRNA expression. This suggests the existence of a positive feedback loop at the transcriptional level, which is further supported by up-regulation of IL-11 mRNA expression in the presence of rIL-11 in in vitro cultures of lung cells. These findings imply a pathogenic role for IL-11 during the early phase of Mycobacterium tuberculosis-triggered disease in a genetically susceptible host. |