title: The Role of Gastrin and CCK Receptors in Pancreatic Cancer and other Malignancies.
abstract: The gastrointestinal (GI) peptide gastrin is an important regulator of the release of gastric acid from the stomach parietal cells and it also plays an important role in growth of the gastrointestinal tract. It has become apparent that gastrin and its related peptide cholecystokinin (CCK) are also significantly involved with growth of GI cancers as well as other malignancies through activation of the cholecystokinin-B (CCK-B) receptor. Of interest, gastrin is expressed in the embryologic pancreas but not in the adult pancreas; however, gastrin becomes re-expressed in pancreatic cancer where it stimulates growth of this malignancy by an autocrine mechanism. Strategies to down-regulate gastrin or interfere with its interface with the CCK receptor with selective antibodies or receptor antagonists hold promise for the treatment of pancreatic cancer and other gastrin--responsive tumors.
authors.affiliation: 1. Department of Medicine, Georgetown University, Washington, DC, USA.
authors.forename: Jill P
authors.initials: JP
authors.lastname: Smith
authors.affiliation: 2. Pennsylvania State University, College of Medicine, Hershey, PA, USA.
authors.forename: Lionel K
authors.initials: LK
authors.lastname: Fonkoua
authors.affiliation: 3. National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
authors.forename: Terry W
authors.initials: TW
authors.lastname: Moody
mesh_terms: D000818:Animals; D005755:Gastrins / Q000378:metabolism*; D006801:Humans; D010190:Pancreatic Neoplasms / Q000378:metabolism*; D011949:Receptors, Cholecystokinin / Q000378:metabolism*
chemical_list: D005755:Gastrins; D011949:Receptors, Cholecystokinin
keywords: peptide gastrin