First Author | Di Micco A | Year | 2016 |
Journal | Proc Natl Acad Sci U S A | Volume | 113 |
Issue | 32 | Pages | E4671-80 |
PubMed ID | 27462105 | Mgi Jnum | J:235285 |
Mgi Id | MGI:5796042 | Doi | 10.1073/pnas.1602419113 |
Citation | Di Micco A, et al. (2016) AIM2 inflammasome is activated by pharmacological disruption of nuclear envelope integrity. Proc Natl Acad Sci U S A 113(32):E4671-80 |
abstractText | Inflammasomes are critical sensors that convey cellular stress and pathogen presence to the immune system by activating inflammatory caspases and cytokines such as IL-1beta. The nature of endogenous stress signals that activate inflammasomes remains unclear. Here we show that an inhibitor of the HIV aspartyl protease, Nelfinavir, triggers inflammasome formation and elicits an IL-1R-dependent inflammation in mice. We found that Nelfinavir impaired the maturation of lamin A, a structural component of the nuclear envelope, thereby promoting the release of DNA in the cytosol. Moreover, deficiency of the cytosolic DNA-sensor AIM2 impaired Nelfinavir-mediated inflammasome activation. These findings identify a pharmacologic activator of inflammasome and demonstrate the role of AIM2 in detecting endogenous DNA release upon perturbation of nuclear envelope integrity. |