Optogenetic control of epileptiform activity.
Tønnesen, Jan ; Toft Sörensen, Andreas LU ; Deisseroth, Karl ; Lundberg, Cecilia LU
and Kokaia, Merab
LU
(2009)
In Proceedings of the National Academy of Sciences
106(29).
p.12162-12167
- Abstract
- The optogenetic approach to gain control over neuronal excitability both in vitro and in vivo has emerged as a fascinating scientific tool to explore neuronal networks, but it also opens possibilities for developing novel treatment strategies for neurologic conditions. We have explored whether such an optogenetic approach using the light-driven halorhodopsin chloride pump from Natronomonas pharaonis (NpHR), modified for mammalian CNS expression to hyperpolarize central neurons, may inhibit excessive hyperexcitability and epileptiform activity. We show that a lentiviral vector containing the NpHR gene under the calcium/calmodulin-dependent protein kinase IIalpha promoter transduces principal cells of the hippocampus and cortex and... (More)
- The optogenetic approach to gain control over neuronal excitability both in vitro and in vivo has emerged as a fascinating scientific tool to explore neuronal networks, but it also opens possibilities for developing novel treatment strategies for neurologic conditions. We have explored whether such an optogenetic approach using the light-driven halorhodopsin chloride pump from Natronomonas pharaonis (NpHR), modified for mammalian CNS expression to hyperpolarize central neurons, may inhibit excessive hyperexcitability and epileptiform activity. We show that a lentiviral vector containing the NpHR gene under the calcium/calmodulin-dependent protein kinase IIalpha promoter transduces principal cells of the hippocampus and cortex and hyperpolarizes these cells, preventing generation of action potentials and epileptiform activity during optical stimulation. This study proves a principle, that selective hyperpolarization of principal cortical neurons by NpHR is sufficient to curtail paroxysmal activity in transduced neurons and can inhibit stimulation train-induced bursting in hippocampal organotypic slice cultures, which represents a model tissue of pharmacoresistant epilepsy. This study demonstrates that the optogenetic approach may prove useful for controlling epileptiform activity and opens a future perspective to develop it into a strategy to treat epilepsy. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1453373
- author
- Tønnesen, Jan
; Toft Sörensen, Andreas
LU
; Deisseroth, Karl
; Lundberg, Cecilia
LU
and Kokaia, Merab
LU
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- NpHR, paroxysmal depolarizing shift (PDS), epilepsy, hippocampus, stimulation train-induced bursting (STIB)
- in
- Proceedings of the National Academy of Sciences
- volume
- 106
- issue
- 29
- pages
- 12162 - 12167
- publisher
- National Academy of Sciences
- external identifiers
-
- wos:000268178400062
- pmid:19581573
- scopus:67749098051
- ISSN
- 1091-6490
- DOI
- 10.1073/pnas.0901915106
- language
- English
- LU publication?
- yes
- id
- 70949352-7596-4db2-8a81-cfbee76ad475 (old id 1453373)
- alternative location
- http://www.ncbi.nlm.nih.gov/pubmed/19581573?dopt=Abstract
- date added to LUP
- 2016-04-04 07:43:08
- date last changed
- 2022-03-15 07:14:23
@article{70949352-7596-4db2-8a81-cfbee76ad475,
abstract = {{The optogenetic approach to gain control over neuronal excitability both in vitro and in vivo has emerged as a fascinating scientific tool to explore neuronal networks, but it also opens possibilities for developing novel treatment strategies for neurologic conditions. We have explored whether such an optogenetic approach using the light-driven halorhodopsin chloride pump from Natronomonas pharaonis (NpHR), modified for mammalian CNS expression to hyperpolarize central neurons, may inhibit excessive hyperexcitability and epileptiform activity. We show that a lentiviral vector containing the NpHR gene under the calcium/calmodulin-dependent protein kinase IIalpha promoter transduces principal cells of the hippocampus and cortex and hyperpolarizes these cells, preventing generation of action potentials and epileptiform activity during optical stimulation. This study proves a principle, that selective hyperpolarization of principal cortical neurons by NpHR is sufficient to curtail paroxysmal activity in transduced neurons and can inhibit stimulation train-induced bursting in hippocampal organotypic slice cultures, which represents a model tissue of pharmacoresistant epilepsy. This study demonstrates that the optogenetic approach may prove useful for controlling epileptiform activity and opens a future perspective to develop it into a strategy to treat epilepsy.}},
author = {{Tønnesen, Jan and Toft Sörensen, Andreas and Deisseroth, Karl and Lundberg, Cecilia and Kokaia, Merab}},
issn = {{1091-6490}},
keywords = {{NpHR; paroxysmal depolarizing shift (PDS); epilepsy; hippocampus; stimulation train-induced bursting (STIB)}},
language = {{eng}},
number = {{29}},
pages = {{12162--12167}},
publisher = {{National Academy of Sciences}},
series = {{Proceedings of the National Academy of Sciences}},
title = {{Optogenetic control of epileptiform activity.}},
url = {{http://dx.doi.org/10.1073/pnas.0901915106}},
doi = {{10.1073/pnas.0901915106}},
volume = {{106}},
year = {{2009}},
}