NR1H3 and pneumocystosis: Accordingly, we determined these LXR-related gene expression in the 4 subsets of AMs before and after DEX treatment, and found that Nr1h3 (encoding LXRs) and Lpcat3 (encoding LPCAT3) were both elevated in the samples of DEX-PCP group, compared with WT-PCP counterpart, which may lead to the decreased level of LPCs (Figures 9B–D).