TGFB1 and pemphigus foliaceus: In addition, salvianolic acid B from Dan shen, polydatin from Hu zhang, and chlorogenic acid from Zi wan or Kuan donghua were reported to prevent and treat PF by multiple mechanisms, including anti-inflammation, endoplasmic reticulum stress inhibition, and TGF-β/Smad blockade (Hogan and Lee, 1987; Liu et al., 2016; Wang et al., 2017; Jiang et al., 2020).