Neuropathological and behavioral consequences of adeno-associated viral vector-mediated continuous intrastriatal neurotrophin delivery in a focal ischemia model in rats.

Gunnar Andsberg, Zaal Kokaia, Ronald L Klein, Nicholas Muzyczka, Olle Lindvall, Ronald J Mandel

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskriftPeer review

Sammanfattning

Nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF) were continuously delivered to the striatum at biologically active levels via recombinant adeno-associated viral (rAAV) gene transfer 4-5 weeks prior to 30 min of middle cerebral artery occlusion (MCAO). The magnitude of the deficits in a battery of behavioral tests designed to assess striatal function was highly correlated to the extent of ischemic damage determined by unbiased stereological estimations of striatal neuron numbers. The delivery of neurotrophins lead to mild functional improvements in the ischemia-induced motor impairments assessed 3-5 weeks after the insult, in agreement with a small but significant increase of the survival of dorsolateral striatal neurons. Detailed phenotypic analysis demonstrated that the parvalbumin-containing interneurons were spared to a greater extent by the neurotrophin treatment as compared to the projection neurons, which agreed with the specificity for interneuron transduction by the rAAV vector. These data show the advantage of the never previously performed combination of precise quantification of the ischemia-induced neuropathology along with detailed behavioural analysis for assessing neuroprotection after stroke. We observe that intrastriatal delivery of NGF and BDNF using a viral vector system can mitigate, albeit only moderately, neuronal death following stroke, which leads to detectable functional sparing. (c)2002 Elsevier Science (USA).
Originalspråkengelska
Sidor (från-till)187-204
TidskriftNeurobiology of Disease
Volym9
Nummer2
DOI
StatusPublished - 2002

Bibliografisk information

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Restorative Neurology (0131000160), Neurology, Lund (013027000)

Ämnesklassifikation (UKÄ)

  • Neurovetenskaper

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