library_construction_protocol: Cells from whole mouse lungs were harvested and FACS performed using standard cell staining techniques with CD11c antibody (Clone N418; catalog no. 12-0114-82, ThermoFisher). RNA isolated using mirVana miRNA and total RNA isolation kit (catalog no. AM1560, Thermo Fisher Scientific). Following rRNA removal, RNA was used for the construction of sequencing libraries.  Libraries were pooled and sequenced at 2 x 150 bp read lengths on the Illumina HiSeq 4000 platform to generate approximately 60-80 million paired-end reads per sample.