Abstract
Selectively activating (by optogenetics) parvalbumin-expressing (PV) interneurons induces GABA release onto CA1 pyramidal cells. Here we report that this release was attenuated by presynaptic mu opioid receptors (MORs) activation. On the other hand, conventional electric shock, presumably activating non-selectively presynaptic GABAergic terminals, also induced GABA release; however, this release showed relatively limited depression by MORs activation. The data suggest that MORs specifically inhibit GABA release from PV terminals and therefore, further support the idea that MORs contribute to homeostasis in CA1 neuro-circuit.
| Original language | English |
|---|---|
| Pages (from-to) | 1059-1062 |
| Number of pages | 4 |
| Journal | Biochemical and Biophysical Research Communications |
| Volume | 522 |
| Issue number | 4 |
| DOIs | |
| State | Published - 19 Feb 2020 |
| Externally published | Yes |
Keywords
- GABA
- Hippocampus
- Mu opioid receptors
- Optogenetics
- Parvalbumin
- Whole-cell recordings