
-   TREM2 mRNA expression is decreased in Lipopolysaccharide (LPS) induced acute lung injury (ALI) mouse model. Vasoactive intestinal peptide (VIP) upregulates TREM2 expression and exerts anti-inflammatory effect [PMID: 21130121].
-   The active form of vitamin D, 1,25(OH)2D3 can induce TREM-1 mRNA in normal human bronchial epithelial cells studied in vitro [PMID: 21690199].
