Monell Chemical Senses Center, 3500 Market Street, Philadelphia, PA 19104-3308, USA.
Chem Senses. 2011 Sep;36(7):601-12. doi: 10.1093/chemse/bjr012. Epub 2011 Apr 6.
The ability to maintain human fungiform papillae cells in culture for multiple cell cycles would be of considerable utility for characterizing the molecular, regenerative, and functional properties of these unique sensory cells. Here we describe a method for enzymatically isolating human cells from fungiform papillae obtained by biopsy and maintaining them in culture for more than 7 passages (7 months) without loss of viability and while retaining many of the functional properties of acutely isolated taste cells. Cells in these cultures exhibited increases in intracellular calcium when stimulated with perceptually appropriate concentrations of several taste stimuli, indicating that at least some of the native signaling pathways were present. This system can provide a useful model for molecular studies of the proliferation, differentiation, and physiological function of human fungiform papillae cells.
如果能够在培养中维持人类味乳头细胞的多个细胞周期,将对这些独特的感觉细胞的分子、再生和功能特性的研究具有重要的应用价值。本文描述了一种从活检获得的味乳头中酶解分离人类细胞并在培养中维持超过 7 个传代(7 个月)的方法,在此过程中细胞保持活力并保留了急性分离味觉细胞的许多功能特性。当用几种味觉刺激物的感知适当浓度刺激这些培养物中的细胞时,细胞内钙离子增加,表明至少存在一些天然的信号通路。该系统可为研究人类味乳头细胞的增殖、分化和生理功能的分子研究提供一个有用的模型。