The current study used two inbred mouse strains, C57BL/6 J and A/J, to investigate the genetics of behavioral responses to fentanyl. Mice were tested for conditioned place preference and fentanyl-induced locomotor activity. C57BL/6J mice formed a conditioned place preference to fentanyl injections and fentanyl increased their activity. Neither effect was noted in A/J mice. We conducted RNA-sequencing on the nucleus accumbens of mice used for fentanyl-induced locomotor activity. Surprisingly, we noted few differentially expressed genes using treatment as the main factor. However many genes differed between strains.
Authors:
Samuel J Harp, Mariangela Martini, Will Rosenow, Larry D Mesner, Hugh Johnson, Charles R Farber, Emilie F Rissman
Differential gene expression in nucleus accumbens somatostatin interneurons_cocaine_mice_pvalue
Description:
To characterize transcriptional alterations that cocaine induces in these cells, we perform cell type-specific RNA-sequencing on FACS-isolated nuclei of somatostatin interneurons and identified 1100 DETs enriched for processes related to neural plasticity. To profile the entire (non poly-A selected) transcriptome of NAc somatostatin interneurons, we generated a transgenic reporter line (SST-TLG498 mice) to label the nuclei of these cells with a modified form of EGFP that is retained in the nuclear membrane (EGFP-F)22, enabling their isolation from NAc dissections using FACS. We succeeded in FACS-isolating nuclei suitable for RNA-sequencing from individual SST-TLG498 mice. We proceeded with differential expression analysis of the RNA-sequencing data to identify differentially expressed transcripts (DETs) in NAc somatostatin interneurons in response to repeated cocaine exposure: 778 transcripts were upregulated by cocaine and 322 were downregulated.
Authors:
Efrain A Ribeiro, Marine Salery, Joseph R Scarpa, Erin S Calipari, Peter J Hamilton, Stacy M Ku, Hope Kronman, Immanuel Purushothaman, Barbara Juarez, Mitra Heshmati, Marie Doyle, Casey Lardner, Dominicka Burek, Ana Strat, Stephen Pirpinias, Ezekiell Mouzon, Ming-Hu Han, Rachael L Neve, Rosemary C Bagot, Andrew Kasarskis, Ja Wook Koo, Eric J Nestler
QTL Associated with Consumption level. On Chromosome 17 with a LOD score= 11.4, p-value =0.001. From a(n) intercross of QTL Associated with Consumption level. On Chromosome 20 with a LOD score= 8, p-value =0.001. From a(n) intercross of
Authors:
Marissal-Arvy N, Diane A, Moisan MP, Larue-Achagiotis C, Tridon C, Tome D, Fromentin G, Mormède P
QTL Associated with Consumption level. On Chromosome 12 with a LOD score= 2.1, p-value =0.68. From a(n) of QTL Associated with Alcohol response. On Chromosome 20 with a LOD score= 3.2, p-value =0.05. From a(n) intercoss of
Authors:
Radcliffe RA, Erwin VG, Bludeau P, Deng X, Fay T, Floyd KL, Deitrich RA
QTL Associated with blood insulin amount. On Chromosome 17 with a LOD score= 8.82, p-value =0.001. From a(n) intercross of QTL Associated with blood insulin amount. On Chromosome 20 with a LOD score= 6.38, p-value =0.001. From a(n) intercross of
Authors:
Marissal-Arvy N, Heliès JM, Tridon C, Moisan MP, Mormède P
H3 dopaminylation at glutamine 5 (H3Q5dop) plays a critical role in heroin-mediated transcriptional plasticity in midbrain regions, particularly the VTA. In rats undergoing abstinence from heroin self-administration (SA), we found acute and persistent accumulation of H3Q5dop in VTA. Attenuation of H3Q5dop during abstinence induced persistent changes in gene expression programs associated with neuronal signaling and dopaminergic function in heroin abstinence and led to reduced heroin-seeking behavior. Interestingly, the observed changes in molecular pathways after heroin SA showed significant yet reversed overlap with the same genes altered in cocaine SA.
Authors:
Sasha L Fulton, Swarup Mitra, Ashley E Lepack, Jennifer A Martin, Andrew F Stewart, Jacob Converse, Mason Hochstetler, David M Dietz, Ian Maze
Rotarod Baseline Chr# 11 rs3719581 (86772383) with right flanking marker rs13481061(62806119) and left marker rs13481161 (92322572). This was mapped in 300 + (b6x129)F2 mice.
Change in rotarod latency over training trials Chr#11 rs13481076(66532354) with right flanking marker rs3697686(58381052) and left marker rs3688955(90397849). This was mapped in 300 + (b6x129)F2 mice.
QTL Associated with Joint/bone inflammation. On Chromosome 20 with a LOD score= 2.83, p-value =. From a(n) intercross of
Authors:
Bleich A, Hopf S, Hedrich HJ, van Lith HA, Li F, Balfour Sartor R, Mähler M
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