当前位置: X-MOL 学术Chem. Senses › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Expression of Bitter Taste Receptors and Solitary Chemosensory Cell Markers in the Human Sinonasal Cavity.
Chemical Senses ( IF 3.5 ) Pub Date : 2019-09-07 , DOI: 10.1093/chemse/bjz042
Jingguo Chen 1, 2 , Eric D Larson 2, 3 , Catherine B Anderson 2, 3 , Pratima Agarwal 3 , Daniel N Frank 4 , Sue C Kinnamon 2, 3 , Vijay R Ramakrishnan 2, 3
Affiliation  

Some bitter taste receptors (TAS2R gene products) are expressed in the human sinonasal cavity and may function to detect airborne irritants. The expression of all 25 human bitter taste receptors and their location within the upper airway is not yet clear. The aim of this study is to characterize the presence and distribution of TAS2R transcripts and solitary chemosensory cells (SCCs) in different locations of the human sinonasal cavity. Biopsies were obtained from human subjects at up to 4 different sinonasal anatomic sites. PCR, microarray, and qRT-PCR were used to examine gene transcript expression. The 25 human bitter taste receptors as well as the sweet/umami receptor subunit, TAS1R3, and canonical taste signaling effectors are expressed in sinonasal tissue. All 25 human bitter taste receptors are expressed in the human upper airway, and expression of these gene products was higher in the ethmoid sinus than nasal cavity locations. Fluorescent in situ hybridization demonstrates that epithelial TRPM5 and TAS2R38 are expressed in a rare cell population compared with multiciliated cells, and at times, consistent with SCC morphology. Secondary analysis of published human sinus single-cell RNAseq data did not uncover TAS2R or canonical taste transduction transcripts in multiciliated cells. These findings indicate that the sinus has higher expression of SCC markers than the nasal cavity in chronic rhinosinusitis patients, comprising a rare cell type. Biopsies obtained from the ethmoid sinus may serve as the best location for study of human upper airway taste receptors and SCCs.

中文翻译:

苦味受体和孤立的化学感觉细胞标记在人类鼻腔中的表达。

某些苦味受体(TAS2R基因产物)在人鼻窦腔中表达,可能起检测空气中刺激物的作用。所有25种人类苦味受体的表达及其在上呼吸道中的位置尚不清楚。这项研究的目的是表征TAS2R转录本和孤立的化学感觉细胞(SCC)在人鼻腔的不同位置的存在和分布。活组织检查是从人类受试者的多达4个不同的鼻窦解剖部位获得的。PCR,微阵列和qRT-PCR用于检查基因转录表达。25种人类苦味受体以及甜味/鲜味受体亚基TAS1R3和典型味觉信号转导因子在鼻窦组织中表达。所有25种人类苦味受体均在人类上呼吸道中表达,这些基因产物在筛窦中的表达高于鼻腔位置。荧光原位杂交表明,与多纤毛细胞相比,上皮TRPM5和TAS2R38在稀有细胞群中表达,有时与SCC形态一致。对已发表的人类鼻窦单细胞RNAseq数据进行的二级分析未发现多纤毛细胞中的TAS2R或规范味觉转导转录本。这些发现表明,在慢性鼻-鼻窦炎患者中,窦具有比鼻腔更高的SCC标志物表达,包括罕见的细胞类型。从筛窦获得的活检可能是研究人类上呼吸道味觉受体和SCC的最佳位置。荧光原位杂交表明,与多纤毛细胞相比,上皮TRPM5和TAS2R38在稀有细胞群中表达,有时与SCC形态一致。对已发表的人类鼻窦单细胞RNAseq数据进行的二级分析未发现多纤毛细胞中的TAS2R或规范味觉转导转录本。这些发现表明,在慢性鼻-鼻窦炎患者中,窦具有比鼻腔更高的SCC标志物表达,包括罕见的细胞类型。从筛窦获得的活检可能是研究人类上呼吸道味觉受体和SCC的最佳位置。荧光原位杂交表明,与多纤毛细胞相比,上皮TRPM5和TAS2R38在稀有细胞群中表达,有时与SCC形态一致。对已发表的人类鼻窦单细胞RNAseq数据进行的二级分析未发现多纤毛细胞中的TAS2R或经典味觉转导转录本。这些发现表明,在慢性鼻-鼻窦炎患者中,鼻窦具有比鼻腔更高的SCC标志物表达,包括罕见的细胞类型。从筛窦获得的活检可能是研究人类上呼吸道味觉受体和SCC的最佳位置。对已发表的人类鼻窦单细胞RNAseq数据进行的二级分析未发现多纤毛细胞中的TAS2R或经典味觉转导转录本。这些发现表明,在慢性鼻-鼻窦炎患者中,鼻窦具有比鼻腔更高的SCC标志物表达,包括罕见的细胞类型。从筛窦获得的活检可能是研究人类上呼吸道味觉受体和SCC的最佳位置。对已发表的人类鼻窦单细胞RNAseq数据进行的二级分析未发现多纤毛细胞中的TAS2R或经典味觉转导转录本。这些发现表明,在慢性鼻-鼻窦炎患者中,鼻窦具有比鼻腔更高的SCC标志物表达,包括罕见的细胞类型。从筛窦获得的活检可能是研究人类上呼吸道味觉受体和SCC的最佳位置。
更新日期:2019-06-20
down
wechat
bug