To determine the expression of MALAT1 in serum of AP patients or pancreatic cell‐derived EVs, the EVs were isolated from the plasma of AP patients (EVs‐AP), the plasma of healthy volunteers (EVs‐C), plasma of AP mouse models (EVs‐AP‐mice), plasma of normal mice (EVs‐C‐mice), supernatant of untreated MPC‐83 (EVs‐cell‐C) and supernatant of caerulein‐treated MPC‐83 cells (EVs‐cell‐Tr). Here, MALAT1 is linked to alkaline phosphatase measurement.