HIF1A and pemphigus foliaceus: In 2017, Garbuzenko et al. loaded PEG2 and three siRNAs (MMP3, Chemokine (C-C motif) ligand 12 [CCL12], and Hypoxia-Inducible Factor 1 Subunit Alpha [HIF1A]) individually and along with NLCs (PEG2-siRNAs-NLCs), which were nebulized by a collision nebulizer for treating BLM-induced PF mice.