| First Author | Minutti CM | Year | 2017 |
| Journal | Science | Volume | 356 |
| Issue | 6342 | Pages | 1076-1080 |
| PubMed ID | 28495878 | Mgi Jnum | J:323378 |
| Mgi Id | MGI:6880963 | Doi | 10.1126/science.aaj2067 |
| Citation | Minutti CM, et al. (2017) Local amplifiers of IL-4Ralpha-mediated macrophage activation promote repair in lung and liver. Science 356(6342):1076-1080 |
| abstractText | The type 2 immune response controls helminth infection and maintains tissue homeostasis but can lead to allergy and fibrosis if not adequately regulated. We have discovered local tissue-specific amplifiers of type 2-mediated macrophage activation. In the lung, surfactant protein A (SP-A) enhanced interleukin-4 (IL-4)-dependent macrophage proliferation and activation, accelerating parasite clearance and reducing pulmonary injury after infection with a lung-migrating helminth. In the peritoneal cavity and liver, C1q enhancement of type 2 macrophage activation was required for liver repair after bacterial infection, but resulted in fibrosis after peritoneal dialysis. IL-4 drives production of these structurally related defense collagens, SP-A and C1q, and the expression of their receptor, myosin 18A. These findings reveal the existence within different tissues of an amplification system needed for local type 2 responses. |
