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糖类或氨基酸的转运增加了分离的肠上皮细胞的钾外流。

Transport of sugars or amino acids increases potassium efflux from isolated enterocytes.

作者信息

Brown P D, Burton K A, Sepúlveda F V

出版信息

FEBS Lett. 1983 Nov 14;163(2):203-6. doi: 10.1016/0014-5793(83)80819-9.

DOI:10.1016/0014-5793(83)80819-9
PMID:6641937
Abstract

A technique to isolate epithelial cells from rabbit jejunum using hyaluronidase is described. The cells obtained retained their abilities to accumulate sugars and potassium (86Rb) against concentration gradients. Potassium efflux was monitored using cells preloaded with 86Rb and the rate constant of efflux was seen to increase when actively transported sugars or amino acids are added to the bathing medium. The increase is related to the transport of the non-electrolyte, but not to volume regulatory events.

摘要

描述了一种使用透明质酸酶从兔空肠中分离上皮细胞的技术。所获得的细胞保留了逆浓度梯度积累糖类和钾(86Rb)的能力。使用预先加载86Rb的细胞监测钾外流,当向浴液中添加主动转运的糖类或氨基酸时,外流速率常数会增加。这种增加与非电解质的转运有关,而与体积调节事件无关。

相似文献

1
Transport of sugars or amino acids increases potassium efflux from isolated enterocytes.糖类或氨基酸的转运增加了分离的肠上皮细胞的钾外流。
FEBS Lett. 1983 Nov 14;163(2):203-6. doi: 10.1016/0014-5793(83)80819-9.
2
Potassium movements associated with amino acid and sugar transport in enterocytes isolated from rabbit jejunum.与从兔空肠分离的肠上皮细胞中氨基酸和糖转运相关的钾离子移动。
J Physiol. 1985 Jun;363:271-85. doi: 10.1113/jphysiol.1985.sp015709.
3
Stimulation of active and passive sodium absorption by sugars in the human jejunum.糖类对人空肠主动和被动钠吸收的刺激作用。
J Clin Invest. 1975 Apr;55(4):728-37. doi: 10.1172/JCI107983.
4
Sodium ion transport in isolated intestinal epithelial cells. II. Comparison of the effect of actively transported sugars on sodium ion efflux in cells isolated from jejunum and ileum.离体肠上皮细胞中的钠离子转运。II. 主动转运糖对空肠和回肠分离细胞中钠离子外流影响的比较。
Biochim Biophys Acta. 1976 Jan 21;419(2):314-9. doi: 10.1016/0005-2736(76)90357-6.
5
Effects of sugars and amino acids on sodium and potassium influx in rabbit ileum.糖和氨基酸对兔回肠钠和钾内流的影响。
J Clin Invest. 1973 Jan;52(1):215-7. doi: 10.1172/JCI107169.
6
Mutual inhibition of sugars and amino acid intestinal absorption.糖与氨基酸在肠道吸收中的相互抑制作用。
Comp Biochem Physiol A Comp Physiol. 1990;95(1):17-21. doi: 10.1016/0300-9629(90)90003-b.
7
Calcium movements accompanying the transport of sugar or amino acid by rabbit enterocytes.兔肠上皮细胞转运糖或氨基酸时伴随的钙运动。
Biochim Biophys Acta. 1986 Mar 27;856(1):185-7. doi: 10.1016/0005-2736(86)90026-x.
8
The effect of sugars and amino acids on mucosal Na+ and K+ concentrations in rabbit ileum.糖和氨基酸对兔回肠黏膜钠和钾浓度的影响。
Biochim Biophys Acta. 1969 Mar 11;173(2):338-40. doi: 10.1016/0005-2736(69)90116-3.
9
A rabbit jejunal isolated enterocyte preparation suitable for transport studies.一种适用于转运研究的兔空肠分离肠上皮细胞制剂。
J Physiol. 1985 Jun;363:257-70. doi: 10.1113/jphysiol.1985.sp015708.
10
[Biological transport function of the intestinal epithelium].[肠道上皮的生物转运功能]
Nihon Heikatsukin Gakkai Zasshi. 1983 Oct;19(5):383-95.

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2
Volume-regulatory K+ efflux during concentrative uptake of alanine in isolated rat hepatocytes.分离的大鼠肝细胞在丙氨酸浓缩摄取过程中的容积调节性钾离子外流。
Biochem J. 1984 Jul 1;221(1):265-8. doi: 10.1042/bj2210265.
3
Potassium movements associated with amino acid and sugar transport in enterocytes isolated from rabbit jejunum.
与从兔空肠分离的肠上皮细胞中氨基酸和糖转运相关的钾离子移动。
J Physiol. 1985 Jun;363:271-85. doi: 10.1113/jphysiol.1985.sp015709.
4
Kinetics of voltage- and Ca2+ activation and Ba2+ blockade of a large-conductance K+ channel from Necturus enterocytes.
J Membr Biol. 1988 Oct;105(1):65-75. doi: 10.1007/BF01871107.
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Stability of enterocytes and certain enzymatic activities in suspensions of cells from the villous tip to the crypt of Lieberkühn of the mouse small intestine.小鼠小肠从绒毛顶端到利伯kühn隐窝的细胞悬液中肠上皮细胞的稳定性和某些酶活性
Appl Environ Microbiol. 1988 Oct;54(10):2398-404. doi: 10.1128/aem.54.10.2398-2404.1988.
6
A chloride conductance activated by adenosine 3',5'-cyclic monophosphate in the apical membrane of Necturus enterocytes.在美西螈肠上皮细胞顶端膜中由3',5'-环磷酸腺苷激活的氯离子电导。
J Physiol. 1988 Jan;395:597-623. doi: 10.1113/jphysiol.1988.sp016937.
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J Physiol. 1986 Oct;379:331-45. doi: 10.1113/jphysiol.1986.sp016256.