TGFB1 and autoimmune pancreatitis type 1: Additionally, we found that the proportions of TGFB1‐positive macrophages, nonclassic monocytes, neutrophils, HIF1A‐positive classic monocytes, and DUSP1‐positive macrophages were decreased in normal pancreatic tissues but significantly elevated in the pancreatic lesions of type 1 AIP patients (Figure 5E).