| RRC ID |
57152
|
| 著者 |
Park J, Kondo S, Tanimoto H, Kohsaka H, Nose A.
|
| タイトル |
Data-driven analysis of motor activity implicates 5-HT2A neurons in backward locomotion of larval Drosophila.
|
| ジャーナル |
Sci Rep
|
| Abstract |
Rhythmic animal behaviors are regulated in part by neural circuits called the central pattern generators (CPGs). Classifying neural population activities correlated with body movements and identifying the associated component neurons are critical steps in understanding CPGs. Previous methods that classify neural dynamics obtained by dimension reduction algorithms often require manual optimization which could be laborious and preparation-specific. Here, we present a simpler and more flexible method that is based on the pre-trained convolutional neural network model VGG-16 and unsupervised learning, and successfully classifies the fictive motor patterns in Drosophila larvae under various imaging conditions. We also used voxel-wise correlation mapping to identify neurons associated with motor patterns. By applying these methods to neurons targeted by 5-HT2A-GAL4, which we generated by the CRISPR/Cas9-system, we identified two classes of interneurons, termed Seta and Leta, which are specifically active during backward but not forward fictive locomotion. Optogenetic activation of Seta and Leta neurons increased backward locomotion. Conversely, thermogenetic inhibition of 5-HT2A-GAL4 neurons or application of a 5-HT2 antagonist decreased backward locomotion induced by noxious light stimuli. This study establishes an accelerated pipeline for activity profiling and cell identification in larval Drosophila and implicates the serotonergic system in the modulation of backward locomotion.
|
| 巻・号 |
8(1)
|
| ページ |
10307
|
| 公開日 |
2018-7-9
|
| DOI |
10.1038/s41598-018-28680-8
|
| PII |
10.1038/s41598-018-28680-8
|
| PMID |
29985473
|
| PMC |
PMC6037780
|
| MeSH |
Animals
CRISPR-Cas Systems / genetics
Calcium / metabolism
Drosophila / growth & development
Drosophila / metabolism*
Drosophila Proteins / genetics*
Drosophila Proteins / metabolism
Gene Editing
Larva / metabolism
Light
Locomotion* / drug effects
Locomotion* / radiation effects
Motor Neurons / metabolism*
Optogenetics / methods
Receptor, Serotonin, 5-HT2A / genetics*
Receptor, Serotonin, 5-HT2A / metabolism
Serotonin 5-HT2 Receptor Antagonists
Temperature
Transcription Factors / genetics
|
| IF |
4.011
|
| 引用数 |
1
|
| リソース情報 |
| ショウジョウバエ |
|
