Cross-species evidence from human and rat brain transcriptome for growth factor signaling pathway dysregulation in major depression
An enhanced understanding of the pathophysiology of depression would facilitate the discovery of new efficacious medications. To this end, we examined hippocampal transcriptional changes in rat models of disease and in humans to identify common disease signatures by using a new algorithm for signatu...
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| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
12 June 2018
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| In: |
Neuropsychopharmacology
Year: 2018, Jahrgang: 43, Heft: 10, Pages: 2134-2145 |
| ISSN: | 1740-634X |
| DOI: | 10.1038/s41386-018-0117-6 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1038/s41386-018-0117-6 Verlag, Volltext: https://www.nature.com/articles/s41386-018-0117-6 
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| Verfasserangaben: | Lucia Carboni, Luca Marchetti, Mario Lauria, Peter Gass, Barbara Vollmayr, Amanda Redfern, Lesley Jones, Maria Razzoli, Karim Malki, Veronica Begni, Marco A. Riva, Enrico Domenici, Laura Caberlotto, Aleksander A. Mathé |
MARC
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| 245 | 1 | 0 | |a Cross-species evidence from human and rat brain transcriptome for growth factor signaling pathway dysregulation in major depression |c Lucia Carboni, Luca Marchetti, Mario Lauria, Peter Gass, Barbara Vollmayr, Amanda Redfern, Lesley Jones, Maria Razzoli, Karim Malki, Veronica Begni, Marco A. Riva, Enrico Domenici, Laura Caberlotto, Aleksander A. Mathé |
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| 520 | |a An enhanced understanding of the pathophysiology of depression would facilitate the discovery of new efficacious medications. To this end, we examined hippocampal transcriptional changes in rat models of disease and in humans to identify common disease signatures by using a new algorithm for signature-based clustering of expression profiles. The tool identified a transcriptomic signature comprising 70 probesets able to discriminate depression models from controls in both Flinders Sensitive Line and Learned Helplessness animals. To identify disease-relevant pathways, we constructed an expanded protein network based on signature gene products and performed functional annotation analysis. We applied the same workflow to transcriptomic profiles of depressed patients. Remarkably, a 171-probesets transcriptional signature which discriminated depressed from healthy subjects was identified. Rat and human signatures shared the SCARA5 gene, while the respective networks derived from protein-based significant interactions with signature genes contained 25 overlapping genes. The comparison between the most enriched pathways in the rat and human signature networks identified a highly significant overlap (p-value: 3.85 × 10-6) of 67 terms including ErbB, neurotrophin, FGF, IGF, and VEGF signaling, immune responses and insulin and leptin signaling. In conclusion, this study allowed the identification of a hippocampal transcriptional signature of resilient or susceptible responses in rat MDD models which overlapped with gene expression alterations observed in depressed patients. These findings are consistent with a loss of hippocampal neural plasticity mediated by altered levels of growth factors and increased inflammatory responses causing metabolic impairments as crucial factors in the pathophysiology of MDD. | ||
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