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Jiang YL, Wang XS, Li XB, Liu A, Fan QY, Yang L, Feng B, Zhang K, Lu L, Qi JY, Yang F, Song DK, Wu YM, Zhao MG, Liu SB. Tanshinone IIA improves contextual fear- and anxiety-like behaviors in mice via the CREB/BDNF/TrkB signaling pathway. Phytother Res 2022; 36:3932-3948. [PMID: 35801985 DOI: 10.1002/ptr.7540] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 05/27/2022] [Accepted: 06/11/2022] [Indexed: 11/11/2022]
Abstract
Posttraumatic stress disorder (PTSD) is one of the most common psychiatric diseases, which is characterized by the typical symptoms such as re-experience, avoidance, and hyperarousal. However, there are few drugs for PTSD treatment. In this study, conditioned fear and single-prolonged stress were employed to establish PTSD mouse model, and we investigated the effects of Tanshinone IIA (TanIIA), a natural product isolated from traditional Chinese herbal Salvia miltiorrhiza, as well as the underlying mechanisms in mice. The results showed that the double stress exposure induced obvious PTSD-like symptoms, and TanIIA administration significantly decreased freezing time in contextual fear test and relieved anxiety-like behavior in open field and elevated plus maze tests. Moreover, TanIIA increased the spine density and upregulated synaptic plasticity-related proteins as well as activated CREB/BDNF/TrkB signaling pathway in the hippocampus. Blockage of CREB remarkably abolished the effects of TanIIA in PTSD model mice and reversed the upregulations of p-CREB, BDNF, TrkB, and synaptic plasticity-related protein induced by TanIIA. The molecular docking simulation indicated that TanIIA could interact with the CREB-binding protein. These findings indicate that TanIIA ameliorates PTSD-like behaviors in mice by activating the CREB/BDNF/TrkB pathway, which provides a basis for PTSD treatment.
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Affiliation(s)
- Yong-Li Jiang
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Xin-Shang Wang
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - Xu-Bo Li
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - An Liu
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Qing-Yu Fan
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - Le Yang
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Ban Feng
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - Kun Zhang
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - Liang Lu
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - Jing-Yu Qi
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - Fan Yang
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Da-Ke Song
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - Yu-Mei Wu
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - Ming-Gao Zhao
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Shui-Bing Liu
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
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Helfer P, Shultz TR. A computational model of systems memory consolidation and reconsolidation. Hippocampus 2019; 30:659-677. [PMID: 31872960 DOI: 10.1002/hipo.23187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 10/05/2019] [Accepted: 12/04/2019] [Indexed: 12/27/2022]
Abstract
In the mammalian brain, newly acquired memories depend on the hippocampus (HPC) for maintenance and recall, but over time, the neocortex takes over these functions, rendering memories HPC-independent. The process responsible for this transformation is called systems memory consolidation. Reactivation of a well-consolidated memory can trigger a temporary return to a HPC-dependent state, a phenomenon known as systems memory reconsolidation. The neural mechanisms underlying systems memory consolidation and reconsolidation are not well understood. Here, we propose a neural model based on well-documented mechanisms of synaptic plasticity and stability and describe a computational implementation that demonstrates the model's ability to account for a range of findings from the systems consolidation and reconsolidation literature. We derive several predictions from the computational model and suggest experiments that may test its validity.
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Affiliation(s)
- Peter Helfer
- Department of Psychology, McGill University, 2001 McGill College, Montreal, QC, Canada
| | - Thomas R Shultz
- Department of Psychology, McGill University, 2001 McGill College, Montreal, QC, Canada
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Vigil FA, Mizuno K, Lucchesi W, Valls-Comamala V, Giese KP. Prevention of long-term memory loss after retrieval by an endogenous CaMKII inhibitor. Sci Rep 2017. [PMID: 28642476 PMCID: PMC5481336 DOI: 10.1038/s41598-017-04355-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
CaMK2N1 and CaMK2N2 are endogenous inhibitors of calcium/calmodulin-dependent protein kinase II (CaMKII), a key synaptic signaling molecule for learning and memory. Here, we investigated the learning and memory function of CaMK2N1 by knocking-down its expression in dorsal hippocampus of mice. We found that reduced CaMK2N1 expression does not affect contextual fear long-term memory (LTM) formation. However, we show that it impairs maintenance of established LTM, but only if retrieval occurs. CaMK2N1 knockdown prevents a decrease of threonine-286 (T286) autophosphorylation of αCaMKII and increases GluA1 levels in hippocampal synapses after retrieval of contextual fear LTM. CaMK2N1 knockdown can also increase CaMK2N2 expression, but we show that such increased expression does not affect LTM after retrieval. We also found that substantial overexpression of CaMK2N2 in dorsal hippocampus impairs LTM formation, but not LTM maintenance, suggesting that CaMKII activity is not required for LTM storage. Taken together, we propose a specific function for CaMK2N1; enabling LTM maintenance after retrieval by inhibiting T286 autophosphorylation of αCaMKII.
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Affiliation(s)
- Fabio Antonio Vigil
- Department of Basic and Clinical Neuroscience, King's College London, 125 Coldharbour Lane, London, SE5 9NU, United Kingdom
| | - Keiko Mizuno
- Department of Basic and Clinical Neuroscience, King's College London, 125 Coldharbour Lane, London, SE5 9NU, United Kingdom
| | - Walter Lucchesi
- Department of Basic and Clinical Neuroscience, King's College London, 125 Coldharbour Lane, London, SE5 9NU, United Kingdom
| | - Victoria Valls-Comamala
- Department of Basic and Clinical Neuroscience, King's College London, 125 Coldharbour Lane, London, SE5 9NU, United Kingdom
| | - Karl Peter Giese
- Department of Basic and Clinical Neuroscience, King's College London, 125 Coldharbour Lane, London, SE5 9NU, United Kingdom.
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