• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

胃癌の増殖と担癌患者の食思不振におけるレプチンとレプチン受容体の役割の研究

Research Project

Project/Area Number 13877082
Research Category

Grant-in-Aid for Exploratory Research

Allocation TypeSingle-year Grants
Research Field Gastroenterology
Research InstitutionShimane Medical University

Principal Investigator

木下 芳一  島根医科大学, 医学部, 教授 (30243306)

Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 2002: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2001: ¥1,600,000 (Direct Cost: ¥1,600,000)
Keywordsレプチン / 胃 / 胃癌 / 増殖 / レプチン受容体 / 中和抗体 / 培養 / autocrine / 食欲
Research Abstract

本研究では、胃癌細胞が産生するレプチンと胃癌細胞上のレプチン受容体(ObRb)が胃癌細胞の増殖と担癌患者の食思不振にどのように関与しているかを明らかとする。このため私共は平成13年度に多種の胃癌細胞株においてレプチンとObRbの産生があることを明らかとし、胃癌組織中にもレプチン1とObRbの発現があることを明らかとした。本年度は、ObRbを発現している胃癌細胞株でレプチン産生が比較的低いものを用いて、この培養細胞株にレプチンを添加し培養細胞の増殖能の変化を^3H-thymidineの取り込みとMTT assayを用いて検討した。培養実験には種々の培養条件を用いて行ったが、レプチンが有意に胃癌細胞の増殖奪促進しているという結果は得られなかった。またレプチン産生能が高い胃癌細胞を培養し、培養液中にレプチンの中和抗体を添加してレプチンがautocrine factorとして胃癌細胞の増殖を促進しているかについて検討したがレプチン中和抗体によっても胃癌細胞の増殖は有意に抑制されなかった。次いで胃癌組織をPCNA染色を行い細胞増殖能を判定するとともに、抗レプチン抗体を用いて胃癌細胞のレプチン発現を計測し、レプチン産生と細胞の増殖に相関関係があるか否かについて検討を行ったが、レプチン産生と胃癌細胞の増殖の間には有意な関係は認められなかった。これらの成績より胃癌細胞の増殖にレプチンがautocrine factorとして重要な役割を有している可能性は小さいと結論された。

Report

(2 results)
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (45 results)

All Other

All Publications (45 results)

  • [Publications] Okuyama T, et al.: "A novel doudenal elvevated lesion mimicking intraluminal doudemal"Gastrointestinal Endoscopy. 55. 750-752 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Hashimoto T, et al.: "Safety and efficacy of glucagon as a premedication for upper"Alimentary Pharmacology and Therapeutics. 16. 111-118 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kazumori H, et al.: "Localization of Reg receptor in rat fundic mucosa"J. Lab. Clin. Med. 139. 101-108 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Adachi K, et al.: "Nizatidine and cisapride enhance salivary secretion in human"Alimentary Pharmacoligy and Therapeutics. 16. 297-301 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Takashima T, et al.: "Cardiovascular risk factors in subjects with Helicobacter pylori"Helicobacter. 7. 86-90 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kawashima K, et al.: "Locolization of calcitonin gene-related peptide receptors in rat"Peptides. 23. 955-956 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kijima I, et al.: "The distribution of endocrin cells in surgically resected"J Gastroenterology. 37. 396-397 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kaji T, et al.: "Adherence of Helicobacter pylori to gastric epithelial"J. Lab. Clin. Med. 139. 244-250 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kazumori H, et al.: "Time course changes of ECL cell markers in acetic acid-induced"Alimentary pharmacology and Therapeutics. 16. 10-19 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Sato H, et al.: "Primary hyperparathyroidism with duodenal ulcer and"Internal Medicine. 41. 377-380 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yuki M, et al.: "Is computerized bowel sound auscultation system useful for the"Am j. Gastroenterol. 97. 1846-1848 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Rumi Mak, et al.: "Growth inhibition of esophageal squamous carcinoma cells"J. Lab. Clin med. 140. 17-26 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Endo H, et al.: "Fine reconstruction of the pancreatic ductular system at the"Histol Histopathol. 17. 107-112 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Adachi K, et al.: "Comparative evaluation of urine-based and other minimally invasive"J. Gastroenterology. 37. 703-708 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Sato H, et al.: "Successful endoscopic injection sclerotherapy for duodenal"J. Gastroenterology. 37. 143-144 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Adachi K, et al.: "Nocturnal gastric acid breakthrough and"Gastrointestinal Function Regulation and Disturbances. 19. 47-56 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kawamura A, et al.: "Helicobacter pylori-independent effect of hyperglycemia on gastric"Am. J. Gastroenterol. 97. 2479-2480 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kinoshita Y, et al.: "Efficacy of rabeprazole in patients with reflux"Current Therapeutic Res. 63. 810-820 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Okuyama T, et al.: "Activation of prostaglandin E2 receptor"J. Lab. Clin. Med. 140. 92-102 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Okuyama T, et al.: "Angiolipoma of the colon diagnosed after endoscopic"Gastrointest Endosc. 55. 748-750 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Matsushima Y, et al.: "Immunological and molecular analysis of B lymphocytes"J. Gastroenterol. 37. 428-433 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yoshino N, et al.: "Helicobacter pylori infection does not affect the serum"Am J Gastroenterol. 97. 2979-2928 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Hamamoto N, et al.: "A new water instillation wethod for painless total"Gastrointest Endosc. 56. 825-828 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Katsube T, et al.: "Comparison of two kinds of special test meals"Shimane J. Med. 20. 5-8 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Ortaga-Cava CF, et al.: "Hepatocyte growth factor expression in dextran sodium"Dig. Dis. Sci. 47. 2275-2285 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kadowaki Y, et al.: "Reg protein is overexpressed in gastric cancer cells"FBBS Lett.. 530. 59-64 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Hamamoto N, et al.: "Morphological changes in the rat exocrine pancreas after"Histol. Histopathol. 17. 1033-1041 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Adachi K, et al.: "Influence of lansoprazole, famotidine, roxatidine"J. Gastroenterol. Hepatol. 18. 168-171 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Sato H.et al.: "Lafutidine pretreatment causes increase in serum"J. Lab. Clin. Med. 141. 102-105 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Hamamoto S, et al.: "9-cis retinoic acid enhances the anti-viral effect of interferon"J. Lab. Clin. Med. 141. 58-66 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Fujishiro H, et al.: "Analysis of urgent colonoscopy for acute lower intestinal"Digestive Endoscopy. 15. 117-120 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kawamura A, et al.: "Correlation between microsatellite instability and matachronous disease"Cencer. 91. 339-345 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kazumori H, et al.: "Analysis of gastrin receptor gene expression in laser capture"FEBS LETTERS. 189. 208-214 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Rumi MAK, et al.: "Peroxisome proliferator-activated receptor γ ligand induced"British J Cancer. 84. 1640-1647 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Ishihara S, et al.: "Intragastric distribution of Helicobacter pylori during short-term omeprazole"Alimentary Pharmacology and Therapeutics. 15. 1485-1491 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Fukuda R, et al.: "Clinical relevance of precore and basal core promoter variants of"J Pediatr Gastroenterol Nutr. 33. 301-306 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Moriyama N, et al.: "E-Cadherin is essential for gastric epithelial restitution in vitro"J Lab Clin Med. 138. 236-242 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Adachi K, et al.: "Influence of Helicobacter pylori infection and cetraxate on gastric mucosal"J Gastroenterol Hepatol. 16. 1211-1216 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Fujishiro H, et al.: "The influence of Helicobacter pylori infection on the prevalence of"J.Gastroenterol Hepatol.. 16. 1217-1221 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Ishihara S, et al.: "T cell-mediated cytotoxicity via Fas/^1Fas ligand signaling"Helicobacter. (in press).

    • Related Report
      2001 Annual Research Report
  • [Publications] Takashima T, et al.: "Cardiovascular risk factors in subjects with Helicobacter pylori infection"Helicobacter. (in press).

    • Related Report
      2001 Annual Research Report
  • [Publications] Kawashima K, et al.: "Locolization of calcitonin gene-related peptide receptors in rat gastric mucosa"Peptides. (in press).

    • Related Report
      2001 Annual Research Report
  • [Publications] Kaji T, et al.: "Adherence of Helicobacter pylori to gastric epithelial cells and"J.Jab.Clin.Med. (in press).

    • Related Report
      2001 Annual Research Report
  • [Publications] Kazumori H, et al.: "Time course changes of ECL cell markers in acutic acid-induced"Aimentary Pharmacology and Therapeutics. (in press).

    • Related Report
      2001 Annual Research Report
  • [Publications] Kazumori H, et al.: "Localization of Reg receptor in fundic mucosa"J.Lad.Clin.Med. (in press).

    • Related Report
      2001 Annual Research Report

URL: 

Published: 2001-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi