mucus secreting cell cholangiocyte secretory epithelial cell large mucus secreting cholangiocyte 2025-03-20T14:21:41Z mucin-secreting cholangiocyte A columnar, mucin-producing cholangiocyte that lines large bile ducts, including the hilar bile duct, right and left hepatic bile ducts, and large intrahepatic bile ducts. This cell expresses phosphorylated STAT3 and TFF-3 in humans and mice.