ACTA1 and autoimmune vasculitis: In support of the notion that P2X7Rs are not involved in early renal damage, it has been demonstrated that the lack of P2X7Rs did not influence the renal damage seen in models of glomerulonephritis and autoimmune vasculitis, including the activation of fibroblasts measured as increased α‐SMA expression (Prendecki et al., 2022).