
Vol. 69, No. 1, 2010
Article (References)
Article (PDF 363 KB)
Original Article
Histamine Stimulates Interleukin-6 Production through Histamine H1 Receptors in Human Amnion Cells
Akiko Morimitsua, Seiji Sumigamaa, Tomomi Kotania, Yukio Manoa, Kanako Suzukib, Masako Araki-Taguchic, Eiko Yamamotoa, Hiromi Hayakawaa, Mayumi Okadad, Atsuo Itakurae, Fumitaka Kikkawaa
aDepartment of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, bDepartment of Obstetrics and Gynecology, Ogaki Municipal Hospital, Ogaki, cDepartment of Obstetrics and Gynecology, International Holy Spirit Hospital, Nagoya, dDepartment of Obstetrics and Gynecology, Toyohashi Municipal Hospital, Toyohashi, and eDepartment of Obstetrics and Gynaecology, Saitama Medical University, Faculty of Medicine, Saitama, Japan
Address of Corresponding Author
Gynecol Obstet Invest 2010;69:67-72 (DOI: 10.1159/000257663)
Key Words
- Histamine
- Interleukin-6
- Amnion
- Allergy
- Preterm labor/delivery
Abstract
Background/Aims: Previous studies have stated that maternal allergic diseases are associated with increased risk of preterm labor/delivery, but the underlying mechanisms remain unclear. This study tested the hypothesis that histamine induces interleukin (IL)-6 production in amnion cells. Methods: Using cultured human amnion cells, we examined expression of histamine receptors and effects of histamine on IL-6 production. Results: Reverse transcription-polymerase chain reaction and Western blotting revealed expression of histamine H1 receptor (H1R) and H2 receptor (H2R) in human amnion. Histamine stimulation significantly increased concentrations of IL-6 in conditioned medium, as did tumor necrosis factor-α and IL-1β in positive controls. In addition, the H1R antagonist olopatadine significantly blocked histamine-induced production of IL-6, whereas the H2R antagonist ranitidine did not. Conclusion: Histamine appears to induce IL-6 production through H1R in human amnion cells. Copyright © 2009 S. Karger AG, Basel
Author Contacts Seiji Sumigama Department of Obstetrics and Gynecology Nagoya University Graduate School of Medicine Tsurumai-cho 65, Showa-ku, Nagoya 466-8550 (Japan) Tel. +81 52 744 2261, Fax +81 52 744 2268, E-Mail sumigama@med.nagoya-u.ac.jp
Article Information
Received: April 21, 2009
Accepted after revision: July 9, 2009
Published online: November 12, 2009
Number of Print Pages : 6
Number of Figures : 4, Number of Tables : 0, Number of References : 36 |
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