| First Author | Lee RH | Year | 2013 |
| Journal | Physiol Rep | Volume | 1 |
| Issue | 7 | Pages | e00189 |
| PubMed ID | 24744866 | Mgi Jnum | J:228484 |
| Mgi Id | MGI:5707142 | Doi | 10.1002/phy2.189 |
| Citation | Lee RH, et al. (2013) Evidence for a prosurvival role of alpha-7 nicotinic acetylcholine receptor in alternatively (M2)-activated macrophages. Physiol Rep 1(7):e00189 |
| abstractText | Recent observations in endothelial cells and macrophages indicate that nicotinic acetylcholine receptors (nAChRs) are potential novel players in mechanisms linked to atherogenesis. In macrophages, alpha7nAChR mediates anti-inflammatory actions and contributes to regulation of cholesterol flux and phagocytosis. Considering that macrophage apoptosis is a key process throughout all stages of atherosclerotic lesion development, in the present study, we examined for the first time the impact of alpha7nAChR expression and function in macrophage survival and apoptosis using in vitro polarized (M1 and M2) bone marrow-derived macrophages (BMDMs) from wild-type and alpha7nAChR knockout mice. Our findings show that stimulation of alpha7nAChR results in activation of the STAT3 prosurvival pathway and protection of macrophages from endoplasmic reticulum (ER) stress-induced apoptosis. These actions are rather selective for M2 BMDMs and are associated to activation of the JAK2/STAT3 axis. Remarkably, these effects are completely lost in M2 macrophages lacking alpha7nAChR. |
