Bitter taste receptor T2R7 and umami taste receptor subunit T1R1 are expressed highly in Vimentin-negative taste bud cells in chickens

Yuta Yoshida, Zhonghou Wang, Kayvan F. Tehrani, Emily G. Pendleton, Ryota Tanaka, Luke J. Mortensen, Shotaro Nishimura, Shoji Tabata, Hong Xiang Liu, Fuminori Kawabata

研究成果: Contribution to journalArticle査読

3 被引用数 (Scopus)

抄録

In the mammalian taste system, the taste receptor type 2 (T2R) family mediates bitter taste, and the taste receptor type 1 (T1R) family mediates sweet and umami tastes (the heterodimer of T1R2/T1R3 forms the sweet taste receptor, and the heterodimer of T1R1/T1R3 forms the umami taste receptor). In the chicken genome, bitter (T2R1, T2R2, and T2R7) and umami (T1R1 and T1R3) taste receptor genes have been found. However, the localization of these taste receptors in the taste buds of chickens has not been elucidated. In the present study, we demonstrated that the bitter taste receptor T2R7 and the umami taste receptor subunit T1R1 were expressed specifically in the taste buds of chickens labeled by Vimentin, a molecular marker for chicken taste buds. We analyzed the distributions of T2R7 and T1R1 on the oral epithelial sheets of chickens and among 3 different oral tissues of chickens: the palate, the base of the oral cavity, and the posterior tongue. We found that the distribution patterns and numbers were similar between taste bud clusters expressing these receptors and those expressing Vimentin. These results indicated broad distributions of T2R7 and T1R1 in the gustatory tissues of the chicken oral cavity. In addition, 3D-reconstructed images clearly revealed that high levels of T2R7 and T1R1 were expressed in Vimentin-negative taste bud cells. Taken together, the present results indicated the presence of bitter and umami sensing systems in the taste buds of chickens, and broad distribution of T2R7 and T1R1 in the chicken oral cavity.

本文言語英語
ページ(範囲)280-286
ページ数7
ジャーナルBiochemical and Biophysical Research Communications
511
2
DOI
出版ステータス出版済み - 4 2 2019

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

フィンガープリント 「Bitter taste receptor T2R7 and umami taste receptor subunit T1R1 are expressed highly in Vimentin-negative taste bud cells in chickens」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル