Cell volume control in vestibular dark cells during and after a hyposmotic challenge.
Cell volume control in vestibular dark cells during and after a hyposmotic challenge.
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低渗挑战期间和之后前庭暗细胞的细胞体积控制。
DOI:
10.1152/ajpcell.1994.266.4.c1046
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发表时间:
1994
期刊:
影响因子:
--
通讯作者:
Shiga,N
中科院分区:
文献类型:
--
作者:
Wangemann,P;Shiga,N
Cell height was measured as an index of volume in a preparation of vestibular dark cells in which the perfusate had access to both sides of the epithelium. In response to a hyposmotic challenge induced by removal of 75 mM NaCl, cell height increased to 107%; however, cell width did not increase. Significantly larger increases in cell height were observed in the absence of Cl- or K+ or in the presence of ouabain, lidocaine, barium, or quinidine, at 7 degrees C, or after fixation with glutaraldehyde. However, no significantly different swelling was observed during a hyposmotic challenge in the absence of Na+ or in the presence of bumetanide or ethoxyzolamide. Subsequent return to control osmolarity caused a regulatory volume increase that was dependent on Na+, Cl-, and K+, inhibited by bumetanide, ouabain, or 7 degrees C, however not inhibited by ethoxyzolamide, barium, quinidine, or lidocaine. The data suggest that cell volume control during the hyposmotic challenge involved a mechanism dependent on cytosolic KCl and the Na(+)-K(+)-ATPase and that the Na(+)-Cl(-)-K+ cotransporter was involved in regulatory volume increase.
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DOI:
10.1152/ajpgi.1991.261.2.g340
发表时间:
1991
期刊:
The American journal of physiology
影响因子:
--
作者:
Haddad,P;Beck,JS;Boyer,JL;Graf,J
通讯作者:
Graf,J
影响因子:
2.5
作者:
Marcus,NY;Marcus,DC
通讯作者:
Marcus,DC
影响因子:
19.6
作者:
U. Kersting;L. Wojnowski;W. Steigner;H. Oberleithner
通讯作者:
H. Oberleithner
影响因子:
4.4
作者:
Farahbakhsh,NA;Fain,GL
通讯作者:
Fain,GL
影响因子:
--
作者:
S. Takeuchi;D. C. Marcus;P. Wangemann
通讯作者:
P. Wangemann