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Netazepid
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
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Netazepid ist ein potentieller Arzneistoff zur Behandlung von Tumoren des Gastrointestinaltrakts. Es wird von dem japanischen Pharmaunternehmen Yamanouchi Pharma Co. Ltd. entwickelt. Zurzeit befindet sich Netazepid in der Klinischen Studie.
Contents
β’ Wirkmechanismus
β’ Literatur
β’ Einzelnachweise
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Wirkmechanismus
Netazepid ist ein Antagonist am Cholecystokinin-2-Rezeptor, einem Gastrin-Rezeptor. Gastrin stimuliert die MagensΓ€ure-Sekretion direkt durch die Stimulation des CCK-2-Rezeptors der Magen-Epithelzellen. Die Hemmung der CCK-2-Rezeptoren durch Netazepid hemmt die MagensΓ€uresekretion. Die Histamin-abhΓ€ngige MagensΓ€uresekretion wird jedoch nicht beeinflusst. Die AnsΓ€tze der Behandlung von Tumoren des Gastrointestinaltrakts mit Netazepid beruhen darauf, dass man davon ausgeht, dass Gastrin das Tumorwachstum CCK-2-Rezeptorvermittelt fΓΆrdert. Die Plasmahalbwertszeit betrΓ€gt rund 8 Stunden.
Literatur
β’ Agent for preventing or treating pancreas cancer, ovary cancer or liver cancer containing novel water-soluble prodrug. PCT Int. Appl., 2007, 108pp
β’ L.Evilevitch,BR. WestrΓΆm and SG.Pierzynowski. CCK-B receptor antagonist YF476 inhibit spancreatic Enzyme secretion at a duodenal level in pigs. Scand J Gastroenterol, 39:886-890, 2004
β’ Y.Takinami, H.Yuki, A.Nishida, S.Akuzawa, A.Uchida, Y.Takemoto, M.Otha, M.Satoh, G.Semple, K.Miyata. YF476 is a new potent and selective gastrin/cholecystokinin-B receptor antagonist in vitro and in vivo. Alimentary Pharmacology and Therapeutics,11(1):113-120,1997
Einzelnachweise
cite-note-nv-11. Dieser Stoff wurde in Bezug auf seine GefΓ€hrlichkeit entweder noch nicht eingestuft oder eine verlΓ€ssliche und zitierfΓ€hige Quelle hierzu wurde noch nicht gefunden.