Diverse cholinergic receptors in the cat carotid chemosensory unit.

Diverse cholinergic receptors in the cat carotid chemosensory unit.
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猫颈动脉化学感应单元中存在多种胆碱能受体。

DOI:
10.1007/978-1-4419-9280-2_41
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发表时间:
2003
影响因子:
--
通讯作者:
Shirahata,Machiko
Shirahata,Machiko
中科院分区:
医学4区
文献类型:
--
作者:
Hirasawa,Serabi;Mendoza,JeffreyA;Jacoby,DavidB;Kobayashi,Chiyoko;Fitzgerald,RobertS;Schofield,Brian;Chandrasegaran,Srinivasan;Shirahata,Machiko

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数十年的研究表明,在血管球细胞(假定的化学感受细胞)中存在神经递质,并且神经递质参与颈动脉体化学传递(Gonzalez et al,1994)。我们一直认为ACh是猫颈动脉体中主要的兴奋性神经递质(Fitzgerald,2000)。ACh作为颈动脉体中的兴奋性神经递质满足大多数标准。关于胆碱能受体的存在,我们的免疫组织学研究表明,烟碱乙酰胆碱受体(nAChR)的α7亚基位于化学感受器神经末梢(Shirahata et al,1998),nAChR的α4和β2亚基位于血管球细胞(Ishizawa et al,1994)。nAChR的其他亚基或毒蕈碱型ACh受体(mAChR)的亚型的表达或定位尚不清楚。神经元nAChR是配体门控阳离子通道。它们由两个α(α 2 -6)和三个β(β2-4)亚基组成,或由五个α(α 7 -9)亚基组成。在可变组合中,α3β4、α4β2和α 7型似乎是主要的nAChR,并且它们在神经系统中广泛但独特地表达(Lukas等人,1999)。毒蕈碱型乙酰胆碱受体(Muscarinic AChR)是一种重要的乙酰胆碱受体,在分子生物学上可分为5种亚型(M1-M5)。分布于神经系统、平滑肌和腺体(考尔菲尔德和Birdsall,1998)。本研究的目的是研究猫化学敏感单位(颈动脉体和岩神经节)中主要胆碱能受体的基因表达和受体蛋白的定位。
Decades of studies have shown the presence of neurotransmitters in the glomus cell, the putative chemosensory cell, and the involvement of neurotransmitters in carotid body chemotransmission (Gonzalez et al, 1994). We have been proposing that ACh is a major excitatory neurotransmitter in the cat carotid body (Fitzgerald, 2000). ACh fulfills most of criteria as an excitatory neurotransmitter in the carotid body. Regarding the presence of cholinergic receptors, our immunohistological study has shown that α7 subunits of nicotinic ACh receptors (nAChRs) locate at chemoreceptor nerve endings (Shirahata et al, 1998), and that α4 and β2 subunits of nAChRs in glomus cells (Ishizawa et al, 1994). Expression or localization of other subunits of nAChRs or subtypes of muscarinic ACh receptors (mAChRs) has not yet been known. Neuronal nAChRs are ligand-gated cation channels. They are composed of two a (a2-6) and three β (β2-4) subunits, or of five a (a7-9) subunits. Among variable combinations, α3β4, α4β2, and a7 types appear to be the major nAChRs, and they are widely but distinctively expressed in the nervous system (Lukas et al, 1999). Muscarinic AChRs are pharmacologically and molecular biologically classified into 5 subtypes (M1-M5). They are distributed in the nervous system, smooth muscles and gland (Caulfield and Birdsall, 1998). The purpose of the current study is to investigate the gene expression of major cholinergic receptors and to localize the receptor proteins in the cat chemosensitive unit (the carotid body and the petrosal ganglion).
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DOI: 10.1152/jappl.2000.88.5.1737
发表时间: 2000
影响因子: 3.3
作者:
A. Bairam;H. Néji;F. Marchal
通讯作者: F. Marchal
烟碱乙酰胆碱受体在猫颈动脉体和岩神经节中的定位。
DOI: 10.1007/978-1-4615-5891-0_37
发表时间: 1996
影响因子: --
作者:
Y. Ishizawa;R. Fitzgerald;M. Shirahata;B. Schofield
通讯作者: B. Schofield
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DOI: 10.1152/jn.1997.78.5.2388
发表时间: 1997
期刊: Journal of neurophysiology.
影响因子: --
作者:
Shirahata,M;Fitzgerald,RS;Sham,JS
通讯作者: Sham,JS
猫岩神经节神经元的乙酰胆碱敏感性。
DOI: 10.1007/0-306-46825-5_35
发表时间: 2000
影响因子: --
作者:
Shirahata,M;Ishizawa,Y;Rudisill,M;Sham,JS;Schofield,B;Fitzgerald,RS
通讯作者: Fitzgerald,RS
离解细胞培养物中大鼠岩感觉神经元烟碱乙酰胆碱敏感性
DOI: --
发表时间: 1997
期刊: Brain Research
影响因子: 2.9
作者:
H. Zhong;C. Nurse
通讯作者: C. Nurse