Distinct transcriptional responses of mouse sensory neurons in fashions of human persistent ache circumstances.
Wellcome Open Res. 2018;three:78
Authors: Bangash MA, Alles SRA, Santana-Varela S, Millet Q, Sikandar S, de Clauser L, Ter Heegde F, Habib AM, Pereira V, Sexton JE, Emery EC, Li S, Luiz AP, Erdos J, Gossage SJ, Zhao J, Cox JJ, Wooden JN
Background: Sensory neurons play an important function in nearly all ache circumstances, and have lately been labeled into distinct subsets on the premise of their transcriptomes. Right here we have now analysed alterations in dorsal root ganglia (DRG) gene expression utilizing microarrays in mouse fashions associated to human persistent ache. Strategies: Six completely different ache fashions have been studied in male C57BL/6J mice: (1) bone most cancers ache utilizing most cancers cell injection within the intramedullary area of the femur; (2) neuropathic ache utilizing partial sciatic nerve ligation; (three) osteoarthritis ache utilizing mechanical joint loading; (four) chemotherapy-induced ache with oxaliplatin; (5) persistent muscle ache utilizing hyperalgesic priming; and (6) inflammatory ache utilizing intraplantar full Freund’s adjuvant. Microarray analyses have been carried out utilizing RNA remoted from dorsal root ganglia and in comparison with sham/car handled controls. Outcomes: Differentially expressed genes (DEGs) have been recognized. Recognized and beforehand unreported genes have been discovered to be dysregulated in every ache mannequin. The transcriptomic profiles for every mannequin have been in contrast and expression profiles of DEGs inside subsets of DRG neuronal populations have been analysed to find out whether or not particular neuronal subsets might be linked to every of the ache fashions. Conclusions: Every ache mannequin reveals a singular set of altered transcripts implying distinct mobile responses to completely different painful stimuli. No easy direct hyperlink between genetically distinct units of neurons and specific ache fashions might be discerned.
PMID: 30079380 [PubMed]