Additionally, the SNEA eosinophils significantly promoted the gene expression of ACVR1B, ACVR1C, ACVR2A, TGFBR1, TGFBRAP1 in ASMC, and ACVR1, ACVR1B, ACVR2A, TGFBR2, TGFBR3, and TGFBRAP1 in PF compared with HS eosinophils. Here, TGFBRAP1 is linked to pemphigus foliaceus.