Jain, Anant, Nakahata, Yoshihisa, Pancani, Tristano, Watabe, Tetsuya, Rusina, Polina, South, Kelly, Adachi, Kengo, Yan, Long, Simorowski, Noriko, Furukawa, Hiro, Yasuda, Ryohei (October 2024) Dendritic, delayed, stochastic CaMKII activation in behavioural time scale plasticity. Nature. ISSN 0028-0836 (Public Dataset)
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Abstract
Behavioural time scale plasticity (BTSP) is non-Hebbian plasticity induced by integrating presynaptic and postsynaptic components separated by a behaviourally relevant time scale (seconds)1. BTSP in hippocampal CA1 neurons underlies place cell formation. However, the molecular mechanisms that enable synapse-specific plasticity on a behavioural time scale are unknown. Here we show that BTSP can be induced in a single dendritic spine using two-photon glutamate uncaging paired with postsynaptic current injection temporally separated by a behavioural time scale. Using an improved Ca2+/calmodulin-dependent kinase II (CaMKII) sensor, we did not detect CaMKII activation during this BTSP induction. Instead, we observed dendritic, delayed and stochastic CaMKII activation (DDSC) associated with Ca2+ influx and plateau potentials 10-100 s after BTSP induction. DDSC required both presynaptic and postsynaptic activity, which suggests that CaMKII can integrate these two signals. Also, optogenetically blocking CaMKII 15-30 s after the BTSP protocol inhibited synaptic potentiation, which indicated that DDSC is an essential mechanism of BTSP. IP3-dependent intracellular Ca2+ release facilitated both DDSC and BTSP. Thus, our study suggests that non-synapse-specific CaMKII activation provides an instructive signal with an extensive time window over tens of seconds during BTSP.
| Item Type: | Paper |
|---|---|
| Subjects: | organs, tissues, organelles, cell types and functions organs, tissues, organelles, cell types and functions > sub-cellular tissues: types and functions organs, tissues, organelles, cell types and functions > sub-cellular tissues: types and functions > synapse |
| CSHL Authors: | |
| Communities: | CSHL labs > Furukawa lab |
| SWORD Depositor: | CSHL Elements |
| Depositing User: | CSHL Elements |
| Date: | 9 October 2024 |
| Date Deposited: | 15 Oct 2024 13:19 |
| Last Modified: | 15 Oct 2024 13:19 |
| Related URLs: | |
| Dataset ID: |
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| URI: | https://repository.cshl.edu/id/eprint/41705 |
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