Adeno-associated viral transfer of opioid receptor gene to primary sensory neurons: A strategy to increase opioid antinociception

Y. Xu; Y. Gu; G. Y. Xu; P. Wu; G. W. Li; L. Y.M. Huang

doi:10.1073/pnas.0930324100

Adeno-associated viral transfer of opioid receptor gene to primary sensory neurons: A strategy to increase opioid antinociception

Y. Xu
, Y. Gu
, G. Y. Xu
, P. Wu
, G. W. Li
, L. Y.M. Huang

Neurobiology

Research output: Contribution to journal › Article › peer-review

81 Scopus citations

Abstract

To develop a genetic approach for the treatment of pain, we introduced a recombinant adeno-associated viral (rAAV) vector containing the cDNA for the μ-opioid receptor (μOR) into primary afferent neurons in dorsal root ganglia (DRGs) of rats, which resulted in a long-lasting (>6 months) increase in μOR expression in DRG neurons. The increase greatly potentiated the antinociceptive effects of morphine in rAAV-μOR-infected rats with and without inflammation. Perforated patch recordings indicated that the efficacy and potency of opioid inhibition of voltage-dependent Ca²⁺ channels were enhanced in infected neurons, which may underlie the increase in opiate efficacy. These data suggest that transfer of opioid receptor genes into DRG cells with rAAV vectors may offer a new therapeutic strategy for pain management.

Original language	English (US)
Pages (from-to)	6204-6209
Number of pages	6
Journal	Proceedings of the National Academy of Sciences of the United States of America
Volume	100
Issue number	10
DOIs	https://doi.org/10.1073/pnas.0930324100
State	Published - May 13 2003

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abstract = "To develop a genetic approach for the treatment of pain, we introduced a recombinant adeno-associated viral (rAAV) vector containing the cDNA for the μ-opioid receptor (μOR) into primary afferent neurons in dorsal root ganglia (DRGs) of rats, which resulted in a long-lasting (>6 months) increase in μOR expression in DRG neurons. The increase greatly potentiated the antinociceptive effects of morphine in rAAV-μOR-infected rats with and without inflammation. Perforated patch recordings indicated that the efficacy and potency of opioid inhibition of voltage-dependent Ca2+ channels were enhanced in infected neurons, which may underlie the increase in opiate efficacy. These data suggest that transfer of opioid receptor genes into DRG cells with rAAV vectors may offer a new therapeutic strategy for pain management.",

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AU - Gu, Y.

AU - Xu, G. Y.

AU - Wu, P.

AU - Li, G. W.

AU - Huang, L. Y.M.

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Adeno-associated viral transfer of opioid receptor gene to primary sensory neurons: A strategy to increase opioid antinociception

Abstract

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