Two-photon uncaging of gamma-aminobutyric acid in intact brain tissue.

Two-photon uncaging of gamma-aminobutyric acid in intact brain tissue.
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完整脑组织中γ-氨基丁酸的双光子解禁。

DOI:
10.1038/nchembio.321
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发表时间:
2010-04
影响因子:
14.8
通讯作者:
Ellis-Davies, Graham C. R.
Ellis-Davies, Graham C. R.
中科院分区:
生物学1区
文献类型:
--
作者:
Matsuzaki, Masanori;Hayama, Tatsuya;Kasai, Haruo;Ellis-Davies, Graham C. R.

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我们合成了γ-氨基丁酸的光敏性(或笼状)4-羧甲氧基-5,7-二硝基吲哚衍生物。CDNI-GABA的双光子激发产生轴向分辨率约为2微米的脑片神经元GABA能电流的快速激活,并使GABA-A受体的高分辨率功能图谱成为可能。对主要的抑制性神经递质GABA进行双光子去功能化,应该能够以亚细胞的精度详细研究受体的功能和突触的整合。
We have synthesized a photosensitive (or caged) 4-carboxymethoxy-5,7-dinitroindolinyl (CDNI) derivative of γ-aminobutyric acid (GABA). Two-photon excitation of CDNI-GABA produced rapid activation of GABAergic currents in neurons in brain slices with an axial resolution of approximately 2 micrometers, and enabled high-resolution functional mapping of GABA-A receptors. Two-photon uncaging of GABA, the major inhibitory neurotransmitter, should allow detailed studies of receptor function and synaptic integration with subcellular precision.
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