Nonvesicular Release of ATP from Rat Retinal Glial (Müller) Cells is Differentially Mediated in Response to Osmotic Stress and Glutamate
Nonvesicular Release of ATP from Rat Retinal Glial (Müller) Cells is Differentially Mediated in Response to Osmotic Stress and Glutamate
复制标题
大鼠视网膜胶质细胞 (Müller) 的 ATP 非囊泡释放在对渗透压和谷氨酸的反应中存在差异介导
DOI:
10.1007/s11064-014-1511-z
复制
发表时间:
2015
影响因子:
4.4
通讯作者:
Bringmann A
中科院分区:
文献类型:
--
作者:
Voigt J;Grosche A;Vogler S;Pannicke T;Hollborn M;Kohen L;Wiedemann P;Reichenbach A;Bringmann A
Retinal glial (Müller) cells release ATP upon osmotic stress or activation of metabotropic glutamate receptors. ATP inhibits the osmotic Müller cell swelling by activation of P2Y1receptors. In the present study, we determined the molecular pathways of the ATP release from Müller cells in slices of the rat retina. Administration of the ATP/ADPase apyrase induced a swelling of Müller cells under hypoosmotic conditions, and prevented the swelling-inhibitory effect of glutamate, suggesting that swelling inhibition is mediated by extracellular ATP. A hypoosmotic swelling of Müller cells was also observed in the presence of a blocker of multidrug resistance channels (MK-571), a CFTR inhibitor (glibenclamide), and connexin hemichannel blockers (18-α-glycyrrhetinic acid, 100 µM carbenoxolone). The swelling-inhibitory effect of glutamate was prevented by MK-571, the connexin hemichannel blockers, and a pannexin-1 hemichannel blocker (5 µM carbenoxolone). Thep-glycoprotein blocker verapamil had no effect. As revealed by single-cell RT-PCR, subpopulations of Müller cells expressed mRNAs for pannexin-1 and -2, and connexins 30, 30.3, 32, 43, 45, and 46. The data may suggest that rat Müller cells release ATP by multidrug resistance channels, CFTR, and connexin hemichannels in response to osmotic stress, while glutamate induces a release of ATP via multidrug resistance channels, connexin hemichannels, and pannexin-1.
登录
查看更多内容
影响因子:
4.7
作者:
A. Wurm;T. Pannicke;P. Wiedemann;A. Reichenbach;A. Bringmann
通讯作者:
A. Bringmann
影响因子:
16.2
作者:
M. Slezak;A. Grosche;Aurore Niemiec;N. Tanimoto;T. Pannicke;T. Münch;Britni Crocker;P. Isope;W. Härtig;Susanne C Beck;G. Huber;G. Ferracci;M. Perraut;M. Reber;M. Miehe;V. Demais;C. Lévêque;D. Metzger;K. Szklarczyk;R. Przewłocki;M. Seeliger;Dominique Sage-Ciocca;J. Hirrlinger;A. Reichenbach;S. Reibel;F. Pfrieger
通讯作者:
M. Slezak;A. Grosche;Aurore Niemiec;N. Tanimoto;T. Pannicke;T. Münch;Britni Crocker;P. Isope;W. Härtig;Susanne C Beck;G. Huber;G. Ferracci;M. Perraut;M. Reber;M. Miehe;V. Demais;C. Lévêque;D. Metzger;K. Szklarczyk;R. Przewłocki;M. Seeliger;Dominique Sage-Ciocca;J. Hirrlinger;A. Reichenbach;S. Reibel;F. Pfrieger
影响因子:
3.3
作者:
Krügel K;Wurm A;Linnertz R;Pannicke T;Wiedemann P;Reichenbach A;Bringmann A
通讯作者:
Bringmann A
影响因子:
3.4
作者:
Xiulan Zhang;Ang Li;J. Ge;D. Reigada;A. Laties;C. Mitchell
通讯作者:
Xiulan Zhang;Ang Li;J. Ge;D. Reigada;A. Laties;C. Mitchell
DOI:
10.1523/jneurosci.18-11-04022.1998
发表时间:
1998-06
期刊:
The Journal of Neuroscience
影响因子:
--
作者:
E. Newman;K. Zahs
通讯作者:
E. Newman;K. Zahs