Differential transcriptional profiling of damaged and intact adjacent dorsal root ganglia neurons in neuropathic pain.
Neuropathic pain, caused by a lesion in the somatosensory system, is a severely impairing mostly chronic disease. While its underlying molecular mechanisms are not thoroughly understood, neuroimmune interactions as well as changes in the pain pathway such as sensitization of nociceptors have been im...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2015-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC4400143?pdf=render |
| _version_ | 1819048161225736192 |
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| author | A K Reinhold L Batti D Bilbao A Buness H L Rittner P A Heppenstall |
| author_facet | A K Reinhold L Batti D Bilbao A Buness H L Rittner P A Heppenstall |
| author_sort | A K Reinhold |
| collection | DOAJ |
| description | Neuropathic pain, caused by a lesion in the somatosensory system, is a severely impairing mostly chronic disease. While its underlying molecular mechanisms are not thoroughly understood, neuroimmune interactions as well as changes in the pain pathway such as sensitization of nociceptors have been implicated. It has been shown that not only are different cell types involved in generation and maintenance of neuropathic pain, like neurons, immune and glial cells, but, also, intact adjacent neurons are relevant to the process. Here, we describe an experimental approach to discriminate damaged from intact adjacent neurons in the same dorsal root ganglion (DRG) using differential fluorescent neuronal labelling and fluorescence-activated cell sorting (FACS). Two fluorescent tracers, Fluoroemerald (FE) and 1-dioctadecyl-3,3,3,3-tetramethylindocarbocyanine perchlorate (DiI), were used, whose properties allow us to distinguish between damaged and intact neurons. Subsequent sorting permitted transcriptional analysis of both groups. Results and qPCR validation show a strong regulation in damaged neurons versus contralateral controls as well as a moderate regulation in adjacent neurons. Data for damaged neurons reveal an mRNA expression pattern consistent with established upregulated genes like galanin, which supports our approach. Moreover, novel genes were found strongly regulated such as corticotropin-releasing hormone (CRH), providing novel targets for further research. Differential fluorescent neuronal labelling and sorting allows for a clear distinction between primarily damaged neuropathic neurons and "bystanders," thereby facilitating a more detailed understanding of their respective roles in neuropathic processes in the DRG. |
| first_indexed | 2024-12-21T11:11:51Z |
| format | Article |
| id | doaj.art-14d8ade19599447bb85235a02e969fc1 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-21T11:11:51Z |
| publishDate | 2015-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-14d8ade19599447bb85235a02e969fc12022-12-21T19:06:03ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-01104e012334210.1371/journal.pone.0123342Differential transcriptional profiling of damaged and intact adjacent dorsal root ganglia neurons in neuropathic pain.A K ReinholdL BattiD BilbaoA BunessH L RittnerP A HeppenstallNeuropathic pain, caused by a lesion in the somatosensory system, is a severely impairing mostly chronic disease. While its underlying molecular mechanisms are not thoroughly understood, neuroimmune interactions as well as changes in the pain pathway such as sensitization of nociceptors have been implicated. It has been shown that not only are different cell types involved in generation and maintenance of neuropathic pain, like neurons, immune and glial cells, but, also, intact adjacent neurons are relevant to the process. Here, we describe an experimental approach to discriminate damaged from intact adjacent neurons in the same dorsal root ganglion (DRG) using differential fluorescent neuronal labelling and fluorescence-activated cell sorting (FACS). Two fluorescent tracers, Fluoroemerald (FE) and 1-dioctadecyl-3,3,3,3-tetramethylindocarbocyanine perchlorate (DiI), were used, whose properties allow us to distinguish between damaged and intact neurons. Subsequent sorting permitted transcriptional analysis of both groups. Results and qPCR validation show a strong regulation in damaged neurons versus contralateral controls as well as a moderate regulation in adjacent neurons. Data for damaged neurons reveal an mRNA expression pattern consistent with established upregulated genes like galanin, which supports our approach. Moreover, novel genes were found strongly regulated such as corticotropin-releasing hormone (CRH), providing novel targets for further research. Differential fluorescent neuronal labelling and sorting allows for a clear distinction between primarily damaged neuropathic neurons and "bystanders," thereby facilitating a more detailed understanding of their respective roles in neuropathic processes in the DRG.http://europepmc.org/articles/PMC4400143?pdf=render |
| spellingShingle | A K Reinhold L Batti D Bilbao A Buness H L Rittner P A Heppenstall Differential transcriptional profiling of damaged and intact adjacent dorsal root ganglia neurons in neuropathic pain. PLoS ONE |
| title | Differential transcriptional profiling of damaged and intact adjacent dorsal root ganglia neurons in neuropathic pain. |
| title_full | Differential transcriptional profiling of damaged and intact adjacent dorsal root ganglia neurons in neuropathic pain. |
| title_fullStr | Differential transcriptional profiling of damaged and intact adjacent dorsal root ganglia neurons in neuropathic pain. |
| title_full_unstemmed | Differential transcriptional profiling of damaged and intact adjacent dorsal root ganglia neurons in neuropathic pain. |
| title_short | Differential transcriptional profiling of damaged and intact adjacent dorsal root ganglia neurons in neuropathic pain. |
| title_sort | differential transcriptional profiling of damaged and intact adjacent dorsal root ganglia neurons in neuropathic pain |
| url | http://europepmc.org/articles/PMC4400143?pdf=render |
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