Endothelins Inhibit Osmotic Swelling of Rat Retinal Glial and Bipolar Cells by Activation of Growth Factor Signaling
Endothelins Inhibit Osmotic Swelling of Rat Retinal Glial and Bipolar Cells by Activation of Growth Factor Signaling
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内皮素通过激活生长因子信号传导抑制大鼠视网膜胶质细胞和双极细胞的渗透性肿胀
DOI:
10.1007/s11064-016-1971-4
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发表时间:
2016
影响因子:
4.4
通讯作者:
Bringmann A
中科院分区:
文献类型:
--
作者:
Vogler S;Grosche A;Pannicke T;Wiedemann P;Reichenbach A;Bringmann A
Water accumulation in retinal glial (Müller) and neuronal cells resulting in cellular swelling contributes to the development of retinal edema and neurodegeneration. Here, we show that endothelin-1 (ET-1) dose-dependently inhibits the hypoosmotic swelling of Müller cells in freshly isolated retinal slices of control and diabetic rats, with a maximal inhibition at 100 nM. Osmotic Müller cell swelling was also inhibited by ET-2. The effect of ET-1 was mediated by activation of ETAand ETBreceptors resulting in transactivation of metabotropic glutamate receptors, purinergic P2Y1, and adenosine A1receptors. ET-1 (but not ET-2) also inhibited the osmotic swelling of bipolar cells in retinal slices, but failed to inhibit the swelling of freshly isolated bipolar cells. The inhibitory effect of ET-1 on the bipolar cell swelling in retinal slices was abrogated by inhibitors of the FGF receptor kinase (PD173074) and of TGF-β1 superfamily activin receptor-like kinase receptors (SB431542), respectively. Both Müller and bipolar cells displayed immunoreactivities of ETAand ETBreceptor proteins. The data may suggest that neuroprotective effects of ETs in the retina are in part mediated by prevention of the cytotoxic swelling of retinal glial and bipolar cells. ET-1 acts directly on Müller cells, while the inhibitory effect of ET-1 on bipolar cell swelling is indirectly mediated, via stimulation of the release of growth factors like bFGF and TGF-β1 from Müller cells.
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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:
2.5
作者:
DUDEK, FE;OBENAUS, A;TASKER, JG
通讯作者:
TASKER, JG
DOI:
--
发表时间:
2012
期刊:
Life Science
影响因子:
--
作者:
Matthijs G. Compeer;D. Suylen;T. Hackeng;J. D. De Mey
通讯作者:
J. D. De Mey
DOI:
--
发表时间:
1991
期刊:
American journal of ophthalmology-glaucoma
影响因子:
--
作者:
W. Green;D. Robertson
通讯作者:
D. Robertson
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