The rectal gland of Squalus acanthias: a model for the transport of chloride.

The rectal gland of Squalus acanthias: a model for the transport of chloride.
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棘角鲨的直肠腺:氯化物运输的模型。

DOI:
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发表时间:
1996
影响因子:
19.6
通讯作者:
F. Epstein
F. Epstein
中科院分区:
医学1区
文献类型:
--
作者:
P. Silva;R. Solomon;F. Epstein

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相似文献

刺角鲨的直肠腺通过一种对速尿敏感的过程分泌氯化物,这种过程被称为“次级活性”。“氯离子通过钠:钾:2氯离子协同转运蛋白穿过基底外侧细胞膜进入细胞。用于该电中性吸收步骤的能量由引导到电池中的钠的电化学梯度提供。这是由存在于基底外侧细胞膜中的Na-K-ATP酶维持的。在基底外侧细胞膜中也存在钾传导,其允许钾被动退出。氯离子通过与CFTR非常相似的氯离子电导穿过腔膜离开细胞。因此,直肠腺是脊椎动物界各种上皮器官利用的二级主动氯转运机制的模型。本报告综述了调节直肠腺分泌氯化物的体液因子和介导其的细胞内机制。CNP响应于体积刺激从心脏释放,导致VIP从腺体内的神经释放,并与VIP一起直接激活直肠腺细胞。
The rectal gland of the spiny dogfish shark, Squalus acanthias, secretes chloride by a furosemide sensitive process that has been termed "secondary active." Chloride enters the cell across the basolateral cell membrane via the sodium:potassium:2 chloride cotransporter. The energy for this electroneutral uptake step is provided by the electrochemical gradient for sodium directed into the cell. This is maintained by Na-K-ATPase present in the basolateral cell membrane. Present as well in the basolateral cell membrane is a potassium conductance that permits potassium to exit passively. Chloride leaves the cell across the luminal membrane via a chloride conductance closely similar to CFTR. The rectal gland is thus a model for the mechanism of secondary active chloride transport utilized by various epithelial organs throughout the vertebrate kingdom. This report reviews the humoral agents that regulate the secretion of chloride by the rectal gland and the intracellular mechanisms that mediate it. CNP, released from the heart in response to a volume stimulus, causes the release of VIP from nerves within the gland and together with VIP directly activates the rectal gland cell.
生长抑素抑制鲨鱼直肠腺分泌的作用方式。
DOI: 10.1152/ajpregu.1985.249.3.r329
发表时间: 1985
期刊: The American journal of physiology
影响因子: --
作者:
Silva,P;Stoff,JS;Leone,DR;Epstein,FH
通讯作者: Epstein,FH
离体直肠腺细胞:耗氧量和激素刺激。
DOI: --
发表时间: 1986
期刊: Mineral and electrolyte metabolism
影响因子: --
作者:
Silva,P;Lear,S;Segal,F;Rosen,S;Spokes,K;Stevens,A;Lichtstein,D;Epstein,FH
通讯作者: Epstein,FH
体积扩张在刺激直肠腺功能中的主要作用。
DOI: 10.1152/ajpregu.1985.248.5.r638
发表时间: 1985
期刊: The American journal of physiology
影响因子: --
作者:
Solomon,R;Taylor,M;Sheth,S;Silva,P;Epstein,FH
通讯作者: Epstein,FH
DOI: 10.1172/jci114614
发表时间: 1990
期刊: The Journal of clinical investigation
影响因子: --
作者:
Kelley,GG;Poeschla,EM;Barron,HV;ForrestJr,JN
通讯作者: ForrestJr,JN
内源性腺苷是鲨鱼直肠腺中氯离子转运的自体反馈抑制剂。
DOI: 10.1172/jci115517
发表时间: 1991
期刊: The Journal of clinical investigation
影响因子: --
作者:
Kelley,GG;Aassar,OS;ForrestJr,JN
通讯作者: ForrestJr,JN