Vasoactive intestinal peptide modulates T lymphocyte migration in Peyer's patches of rat small intestine

Soichiro Miura, Hiroshi Serizawa, Yoshikazu Tsuzuki, Iwao Kurose, Makoto Suematsu, Hajime Higuchi, Takeharu Shigematsu, Ryota Hokari, Masahiko Hirokawa, Hiroyuki Kimura, Hiromasa Ishii

研究成果: Article査読

12 被引用数 (Scopus)

抄録

Although vasoactive intestinal peptide (VIP) has been postulated to function in modulation of T cell trafficking, the exact mechanism has not been elucidated in vivo. In the present study, the effects of VIP on T lymphocyte migration were examined in rat Peyer's patches. T lymphocytes collected from intestinal lymph of rats were labeled with carboxyfluorescein diacetate succinimidyl ester and injected into the jugular vein. Peyer's patches of the recipient rats were observed with intravital fluorescence microscopy. In vivo intra-arterial infusion of or in vitro incubation with VIP did not affect the initial lymphocyte interaction with postcapillary venules of Peyer's patches. However, these treatments with VIP significantly inhibited transendothelial migration and also significantly blocked the interstitial migration of T cells and inhibited their subsequent appearance in the interfollicular lymphatics. Treatment with adenosine 3',5'-cyclic monophosphate (cAMP)-inducing agents resulted in similar inhibitory effect on T lymphocyte migration in Peyer's patches. In conclusion, VIP has significant inhibitory effects on T lymphocyte migration in Peyer's patches, possibly mediated by elevation of the intracellular cAMP concentrations.

本文言語English
ページ(範囲)G92-G99
ジャーナルAmerican Journal of Physiology - Gastrointestinal and Liver Physiology
272
1 35-1
DOI
出版ステータスPublished - 1997 1

ASJC Scopus subject areas

  • 生理学
  • 肝臓学
  • 消化器病学
  • 生理学(医学)

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