ArticleJournal of neurovirology2025
Gender dependent modulation of opioid dependance genes and signaling pathways in HIV-1 Transgenic rats at morphine tolerance.
Article in Journal of neurovirology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Misuse of opioids is a major comorbidity in people with HIV (PWH). Neurological abnormalities and opioid addiction seen in PWH involve the interplay among signaling pathways. However, the impact of HIV proteins on morphine dependence is understudied. We aimed to understand the modulation of the opioid dependence genes and signaling pathways in the striatum (Str) and prefrontal cortex (PFC) of PWH. HIV-1 transgenic (HIV-1Tg) rats and F344 control animals were given 2 and 4 pellets of morphine (75-mg/pellet)/placebo on Days 1 and 2, respectively, via subcutaneous implantation. On Day 5, at morphine tolerance the rats were sacrificed, Str and PFC were collected for RNA isolation and cDNA preparation. A PCR-array was used to examine the expression of the 65 opioid dependance genes. Varying numbers of genes were significantly upregulated in the Str and PFC of morphine treated rats. Fold change values were uploaded to QIAGEN Ingenuity Pathway Analysis, to study the signaling pathways associated with the treatment conditions. CREB signaling in neurons and Neuroinflammation signaling pathway were highly activated in the Str of both male and female HIV-1Tg rats given morphine. Gαq signaling and S100 family signaling were activated in female HIV-1Tg rats received morphine. Similarly, in the PFC, synthesis of IP3, CREB Signaling in neurons, Gαq signaling in males and CREB Signaling in neuron, and Gαq signaling in females were activated. Using bioinformatic analysis, we identified key signaling pathways and gender dependent changes in the opioid dependent gene expression and pathway enrichment of HIV-1Tg rats at morphine tolerance.
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