Digestive enzyme secretion pathway

The "Digestive enzyme secretion pathway" is not a single molecule, receptor, or canonical drug target but rather a complex cellular process involving the synthesis, modification, packaging, and exocytosis of digestive enzymes. This pathway primarily occurs in exocrine cells of the pancreas and other digestive glands. Digestive enzymes are synthesized as inactive precursors (zymogens) in the rough endoplasmic reticulum, processed through the Golgi apparatus for further modification and sorting, then stored in zymogen granules. Upon neurohumoral stimulation—such as during a meal—these granules undergo regulated exocytosis to release their contents into the digestive tract[1][3][5]. The process involves multiple molecular players including SNARE proteins for vesicle fusion and actin–myosin cytoskeletal elements for granule movement[1]. Dysregulation or inappropriate activation of this pathway can result in diseases such as acute pancreatitis due to premature activation of proteolytic enzymes within pancreatic tissue[6]. Because it describes an entire biological process rather than a discrete protein or receptor targetable by drugs, it is not considered a therapeutic target itself but may be relevant when considering interventions that modulate secretory function or treat related pathologies.