Neighbor effects of neurons bearing protective transgenes.
Neighbor effects of neurons bearing protective transgenes.
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DOI:
10.1016/j.brainres.2010.04.037
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发表时间:
2010-06-21
期刊:
影响因子:
2.9
通讯作者:
Sapolsky, Robert M.
中科院分区:
文献类型:
--
作者:
Lee, Angela L.;Campbell, Laura B.;Sapolsky, Robert M.
Viral vectors bearing protective transgenes can decrease neurotoxicity after varied necrotic insults. A neuron that dies necrotically releases glutamate, calcium and reactive oxygen species, thereby potentially damaging neighboring neurons. This raises the possibility that preventing such neuron death via gene therapy can secondarily protect neighboring neurons that, themselves, do not express a protective transgene. We determined whether such “good neighbor” effects occur, by characterizing neurons that, while uninfected themselves, are in close proximity to a transgene-bearing neuron. We tested two genes whose overexpression protects against excitotoxicity: anti-apoptotic Bcl-2, and a calcium-activated K+ channel, SK2. Using herpes simplex virus type 2-mediated transgene delivery to hippocampal cultures, we observed “good neighbor” effects on neuronal survival following an excitotoxic insult. However, in the absence of insult, “bad neighbor effects” could also occur (i.e., where being in proximity to a neuron constitutively expressing one of those transgenes is deleterious). We also characterized the necessity for cell-cell contact for these effects. These phenomena may have broad implications for the efficacy of gene overexpression strategies in the CNS.
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影响因子:
2.9
作者:
Gupta, A;Ho, DY;Sapolsky, RM
通讯作者:
Sapolsky, RM
DOI:
10.1073/pnas.90.8.3655
发表时间:
1993-04-15
影响因子:
11.1
作者:
HO, DY;MOCARSKI, ES;SAPOLSKY, RM
通讯作者:
SAPOLSKY, RM
DOI:
10.1073/pnas.0915134107
发表时间:
2010-03-16
影响因子:
11.1
作者:
Jaderstad, Johan;Jaderstad, Linda M.;Herlenius, Eric
通讯作者:
Herlenius, Eric
影响因子:
3
作者:
Ahlemeyer, B;Baumgart-Vogt, E
通讯作者:
Baumgart-Vogt, E
影响因子:
4.7
作者:
Lee, AL;Dumas, TC;Sapolsky, RM
通讯作者:
Sapolsky, RM