Photoactivatable neuropeptides for spatiotemporally precise delivery of opioids in neural tissue.
Photoactivatable neuropeptides for spatiotemporally precise delivery of opioids in neural tissue.
复制标题
DOI:
10.1016/j.neuron.2011.11.016
复制
发表时间:
2012-01-26
期刊:
影响因子:
16.2
通讯作者:
Sabatini BL
中科院分区:
文献类型:
--
作者:
Banghart MR;Sabatini BL
Neuropeptides activate G-protein coupled receptors to acutely modulate cellular excitability and synaptic transmission. However, due to the lack of reagents for precise delivery of peptides within dense brain tissue, the spatiotemporal scale over which neuropeptides act is unknown. To achieve rapid and spatially delimited delivery of neuropeptides in mammalian brain tissue, we developed photoactivatable analogues of two opioids: [Leu5]-enkephalin (LE) and the 8 amino acid form of Dynorphin A (Dyn-8). These peptides are functionally inactive prior to photolysis and exposure to UV light causes clean release of LE and Dyn-8. Recordings from acute slices of rat locus coeruleus (LC) demonstrated that photorelease of LE activates mu opioid receptor-coupled K+ channels with kinetics that approach the limits imposed by G-protein mediated signaling. Temporally-precise and spatially-delimited photorelease revealed the kinetics and ionic nature of the mu opioid response and the mechanisms that determine the spatial profile of enkephalinergic volume transmission in LC.
登录
查看更多内容
影响因子:
16.2
作者:
Insel, Thomas R.
通讯作者:
Insel, Thomas R.
DOI:
10.1073/pnas.78.10.6543
发表时间:
1981-01-01
期刊:
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-BIOLOGICAL SCIENCES
影响因子:
--
作者:
CHAVKIN, C;GOLDSTEIN, A
通讯作者:
GOLDSTEIN, A
影响因子:
2.5
作者:
Osborne, PB;Williams, JT
通讯作者:
Williams, JT
影响因子:
25
作者:
Kim, G;Kandler, K
通讯作者:
Kandler, K
影响因子:
3
作者:
KATZ, LC;DALVA, MB
通讯作者:
DALVA, MB