Ghrelin expression in islet cell tumors: Augmented expression of ghrelin in a case of glucagonoma with multiple endocrine neoplasm type I

Hiroshi Iwakura, Kiminori Hosoda, Ryuichiro Doi, Izumi Komoto, Haruo Nishimura, Choel Son, Junji Fujikura, Tsutomu Tomita, Kazuhiko Takaya, Yoshihiro Ogawa, Tatsuya Hayashi, Gen Inoue, Takashi Akamizu, Hiroshi Hosoda, Masayasu Kojima, Kenji Kangawa, Masayuki Imamura, Kazuwa Nakao

研究成果: ジャーナルへの寄稿学術誌査読

49 被引用数 (Scopus)

抄録

Ghrelin is a 28-amino acid peptide that regulates GH release together with GHRH and somatostatin. The expression of ghrelin has been detected in the stomach, small intestine, hypothalamus, pituitary gland, kidney, placenta, and testis. Recently it was reported that ghrelin is present in pancreatic α-cells and that it stimulates insulin secretion. In this study, we examined the ghrelin expression in two cases of glucagonoma and two cases of insulinoma by Northern blot analysis and immunohistochemistry. Ghrelin expression was identified in a case of glucagonoma associated with multiple endocrine neoplasm type I both by Northern blot analysis using total RNA and by immunohistochemistry, although the plasma ghrelin level was not elevated. This is the first case of tumor in which ghrelin gene expression was detected by Northern blot analysis using total RNA.

本文言語英語
ページ(範囲)4885-4888
ページ数4
ジャーナルJournal of Clinical Endocrinology and Metabolism
87
11
DOI
出版ステータス出版済み - 11月 1 2002
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 内分泌学、糖尿病および代謝内科学
  • 生化学
  • 内分泌学
  • 臨床生化学
  • 生化学、医学

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