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Xu JJ, Elkaddi N, Garcia-Blanco A, Spielman AI, Bachmanov AA, Chung HY, Ozdener MH. Arginyl dipeptides increase the frequency of NaCl-elicited responses via epithelial sodium channel alpha and delta subunits in cultured human fungiform taste papillae cells. Sci Rep 2017; 7:7483. [PMID: 28790369 PMCID: PMC5548727 DOI: 10.1038/s41598-017-07756-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 06/12/2017] [Indexed: 12/19/2022] Open
Abstract
Salty taste is one of the five basic tastes and is often elicited by NaCl. Because excess sodium intake is associated with many health problems, it could be useful to have salt taste enhancers that are not sodium based. In this study, the regulation of NaCl-induced responses was investigated in cultured human fungiform taste papillae (HBO) cells with five arginyl dipeptides: Ala-Arg (AR), Arg-Ala (RA), Arg-Pro (RP), Arg-Glu (RE), and Glu-Arg (ER); and two non-arginyl dipeptides: Asp-Asp (DD) and Glu-Asp (ED). AR, RA, and RP significantly increased the number of cell responses to NaCl, whereas no effect was observed with RE, ER, DD, or ED. We also found no effects with alanine, arginine, or a mixture of both amino acids. Pharmacological studies showed that AR significantly increased responses of amiloride-sensitive but not amiloride-insensitive cells. In studies using small interfering RNAs (siRNAs), responses to AR were significantly decreased in cells transfected with siRNAs against epithelial sodium channel ENaCα or ENaCδ compared to untransfected cells. AR dramatically increased NaCl-elicited responses in cells transfected with NHE1 siRNA but not in those transfected with ENaCα or ENaCδ siRNAs. Altogether, AR increased responses of amiloride-sensitive cells required ENaCα and ENaCδ.
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Affiliation(s)
- Jiao-Jiao Xu
- Food and Nutritional Sciences Programme, School of Life Sciences, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China
| | - Nadia Elkaddi
- Monell Chemical Senses Center, Philadelphia, PA, 19104, USA
| | | | | | | | - Hau Yin Chung
- Food and Nutritional Sciences Programme, School of Life Sciences, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong SAR, China.
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Honda K, Tomooka Y. Nerve-independent and ectopically additional induction of taste buds in organ culture of fetal tongues. In Vitro Cell Dev Biol Anim 2016; 52:911-919. [PMID: 27368433 DOI: 10.1007/s11626-016-0067-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 06/20/2016] [Indexed: 10/21/2022]
Abstract
An improved organ culture system allowed to observe morphogenesis of mouse lingual papillae and taste buds relatively for longer period, in which fetal tongues were analyzed for 6 d. Taste cells were defined as eosinophobic epithelial cells expressing CK8 and Sox2 within lingual epithelium. Addition of glycogen synthase kinase 3 beta inhibitor CHIR99021 induced many taste cells and buds in non-gustatory and gustatory stratified lingual epithelium. The present study clearly demonstrated induction of taste cells and buds ectopically and without innervation.
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Affiliation(s)
- Kotaro Honda
- Graduate School of Industrial Science and Technology, Department of Biological Science and Technology, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo, 125-8585, Japan.
| | - Yasuhiro Tomooka
- Graduate School of Industrial Science and Technology, Department of Biological Science and Technology, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo, 125-8585, Japan
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Involvement of glucocorticoid in induction of lingual T1R3 in rodents. Eur J Pharmacol 2015; 761:262-7. [DOI: 10.1016/j.ejphar.2015.05.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 05/20/2015] [Accepted: 05/20/2015] [Indexed: 11/22/2022]
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Zhang ZQ, Shu G, Zhu XT, Wang LN, Fu Q, Hou LJ, Wang SB, Gao P, Xi QY, Zhang YL, Yu L, Lv JR, Jiang QY. Isolation and characterization of porcine circumvallate papillae cells. Acta Histochem 2014; 116:1313-22. [PMID: 25183665 DOI: 10.1016/j.acthis.2014.08.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 08/08/2014] [Accepted: 08/10/2014] [Indexed: 11/17/2022]
Abstract
Animal food intake is primarily controlled by appetite, which is affected by food quality, environment, and the management and status of animal health. Sensing of taste is mediated by taste receptor cells and is central to appetite. Taste receptor cells possess distinctive physiological characteristics that permit the recognition of various stimuli in foods. Thus, cultures of porcine circumvallate papillae cells provide a model for identification of the molecular and functional characteristics of taste receptor cells. In this study, we described the isolation and culture of porcine circumvallate papillae, using tissue explants and enzymatic digestion, and showed continuous viability and expression of pivotal taste marker proteins for more than 9 passages. In addition, cultured cells showed dramatic rises in intracellular calcium upon stimulation with several taste stimuli (sweet, umami, bitter, and fat). These cultures of porcine taste receptor cells provide a useful model for assessing taste preferences of pigs and may elucidate interactions between various taste stimuli.
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Affiliation(s)
- Zhi-Qi Zhang
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Gang Shu
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Xiao-Tong Zhu
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Li-Na Wang
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Qiang Fu
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Lian-Jie Hou
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Song-Bo Wang
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Ping Gao
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Qian-Yun Xi
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Yong-Liang Zhang
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Lin Yu
- DadHank (Chengdu) Biotech. Corp. Wenjiang Cross-strait Technology Industry Development Park, Chengdu 611130, China
| | - Ji-Rong Lv
- DadHank (Chengdu) Biotech. Corp. Wenjiang Cross-strait Technology Industry Development Park, Chengdu 611130, China
| | - Qing-Yan Jiang
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China.
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Nishiyama M, Yuki S, Fukano C, Sako H, Miyamoto T, Tomooka Y. Attempt to develop taste bud models in three-dimensional culture. Zoolog Sci 2011; 28:623-32. [PMID: 21882950 DOI: 10.2108/zsj.28.623] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Taste buds are the end organs of taste located in the gustatory papillae, which occur on the surface of the oral cavity. The goal of the present study was to establish a culture model mimicking the lingual taste bud of the mouse. To this end, three cell lines were employed: taste bud-derived cell lines (TBD cell lines), a lingual epithelial cell-derived cell line (20A cell line), and a mesenchymal cell-derived cell line (TMD cell line). TBD cells embedded in collagen gel formed three-dimensional clusters, which had an internal cavity equipped with a tight junction-like structure, a microvilluslike structure, and a laminin-positive layer surrounding the cluster. The cells with this epitheliumlike morphology expressed marker proteins of taste cells: gustducin and NCAM. TBD cells formed a monolayer on collagen gel when they were co-cultured with TMD cells. TBD, 20A, and TMD cell lines were maintained in a triple cell co-culture, in which TBD cells were pre-seeded as aggregates or in suspension on the collagen gel containing TMD cells, and 20A cells were laid over the TBD cells. TBD cells in the triple cell co-culture expressed NCAM. This result suggests that co-cultured TBD cells exhibited a characteristic of Type III taste cells. The culture model would be useful to study morphogenesis and functions of the gustatory organ.
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Affiliation(s)
- Miyako Nishiyama
- Division of Material and Biological Sciences, Graduate School of Science, Bunkyo-ku, Tokyo, Japan
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Ozdener MH, Rawson NE. Culture and maintenance of taste cells in vitro. In Vitro Cell Dev Biol Anim 2011; 47:513-4; author reply 515. [PMID: 21720922 DOI: 10.1007/s11626-011-9437-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Accepted: 06/16/2011] [Indexed: 11/25/2022]
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