Immunolocalization of water channel aquaporins in the nasal olfactory mucosa

• Ablimit Abduxukur

  Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine

• Matsuzaki Toshiyuki

  Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine

• Tajika Yuki

  Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine

• Aoki Takeo

  Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine

• Hagiwara Haruo

  Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine

• Takata Kuniaki

  Department of Anatomy and Cell Biology, Gunma University Graduate School of Medicine

抄録

Aquaporins (AQPs), membrane water channel proteins expressed in various tissues and organs, serve in the transfer of water and small solutes across the membrane. We raised antibodies to AQPs using isoform-specific synthetic peptides and surveyed their expression in the rat nasal olfactory and respiratory mucosae. AQP1, AQP3, AQP4, and AQP5 were detected by immunohistochemical and immunoblotting analyses. AQP1 was expressed in the endothelial cells of blood vessels and the surrounding connective tissue cells in the olfactory and respiratory mucosae. AQP1 may be involved in water transfer across the blood vessel wall. In the olfactory epithelium, no AQP was detected in the olfactory sensory cells. Instead, AQP3 was abundant in the olfactory epithelium, where it was localized in the supporting cells and basal cells. Expression of AQP3 was mostly restricted to the basal cells in the respiratory epithelium. In marked contrast, AQP4 was abundant in the respiratory epithelium, but its abundance was limited to the basal cells in the olfactory epithelium. In the Bowman’s gland, AQP5 was localized in the apical membrane in the secretory acinar cells, whereas AQP3 and AQP4 were found in the basolateral membrane. Similar localization was seen in its duct cells. These results showed a distinct localization pattern for AQPs in the olfactory epithelium. AQP3 and AQP4 in the supporting cells and basal cells may play an important role in generating and maintaining the specific microenvironment around the olfactory sensory cells. AQP3, AQP4, and AQP5 in the Bowman’s gland may serve in the secretion to generate the microenvironment at the apical surface of the olfactory dendrites for odorant reception.

収録刊行物

• Ａｒｃｈｉｖｅｓ　ｏｆ　Ｈｉｓｔｏｌｏｇｙ　ａｎｄ　Ｃｙｔｏｌｏｇｙ

  Ａｒｃｈｉｖｅｓ　ｏｆ　Ｈｉｓｔｏｌｏｇｙ　ａｎｄ　Ｃｙｔｏｌｏｇｙ 69 (1), 1-12, 2006

  国際組織細胞学会

キーワード

• Histology

詳細情報

• CRID: 1390282681388806656
• NII論文ID: 130004462660
• NII論文ID: 10018116835
• NII書誌ID: AA1068990X
• DOI: 10.1679/aohc.69.1
• ISSN: 13491717
• ISSN: 09149465
• Web Site: http://www.jstage.jst.go.jp/article/aohc/69/1/69_1_1/_pdf
• Web Site: https://search.jamas.or.jp/link/ui/2007065651
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
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