RRC ID 11841
Author Chinzei R, Masuda A, Nishiumi S, Nishida M, Onoyama M, Sanuki T, Fujita T, Moritoh S, Itoh T, Kutsumi H, Mizuno S, Azuma T, Yoshida M.
Title Vitamin K3 attenuates cerulein-induced acute pancreatitis through inhibition of the autophagic pathway.
Journal Pancreas
Abstract OBJECTIVES:The discovery of novel and effective treatment methods would be of great help to patients with acute pancreatitis. The aims of this study were to determine the inhibitory effects of vitamin K3 (VK3) against cerulein-induced acute pancreatitis in mice and to examine the mechanisms behind these effects.
METHODS:Acute pancreatitis in mice was induced by intraperitoneal injection of cerulein 6 times at hourly intervals. Vitamin K3 was administered once before the first injection of cerulein or twice before and after the first injection of cerulein. The degrees of inflammation and autophagy in the pancreatic tissue were estimated by histological examination, measurement of enzyme activity, confocal microscopy, and Western blotting. The inhibitory effects of VK3 against rapamycin-induced autophagy were also examined using HeLa cells stably expressing green fluorescent protein LC3.
RESULTS:Cerulein-induced acute pancreatitis was markedly attenuated by the administration of VK3. In addition, VK3 led to the inhibition of cerulein-evoked autophagic changes and colocalization of autophagosomes and lysosomes in the pancreatic tissue. Vitamin K3 also reduced rapamycin-induced autophagy in HeLa/green fluorescent protein LC3 cells.
CONCLUSIONS:Our data suggest that the administration of VK3 reduces pancreatic inflammation in acute pancreatitis through inhibition of the autophagic pathway. Vitamin K3 may be an effective therapeutic strategy against acute pancreatitis.
Volume 40(1)
Pages 84-94
Published 2011-1
DOI 10.1097/MPA.0b013e3181f69fc9
PMID 20881898
MeSH Acute Disease Animals Autophagy / drug effects* Ceruletide / toxicity* Female HeLa Cells Humans Lysosomes / drug effects Mice Mice, Inbred C57BL Pancreatitis / chemically induced Pancreatitis / drug therapy* Phagosomes / drug effects Sirolimus / pharmacology Vitamin K 2 / pharmacology Vitamin K 3 / therapeutic use*
IF 2.958
Times Cited 11
Mice GFP-LC3#53