The Melatonin Signaling Pathway in a Long-Term Memory In Vitro Study.

Jin-Young SungJi-Hyun BaeJong-Ha LeeYoon-Nyun KimDae-Kwang Kim
Dept. of Biomedical Engineering (의용공학과); Dept. of Medical Education (의학교육학); Dept. of Internal Medicine (내과학)
Issue Date
Molecules, Vol.23(4) : E737-E737, 2018
The activation of cyclic adenosine monophosphate (cAMP) response element-binding protein (CREB) via phosphorylation in the hippocampus is an important signaling mechanism for enhancing memory processing. Although melatonin is known to increase CREB expression in various animal models, the signaling mechanism between melatonin and CREB has been unknown in vitro. Thus, we confirmed the signaling pathway between the melatonin receptor 1 (MT1) and CREB using melatonin in HT-22 cells. Melatonin increased MT1 and gradually induced signals associated with long-term memory processing through phosphorylation of Raf, ERK, p90RSK, CREB, and BDNF expression. We also confirmed that the calcium, JNK, and AKT pathways were not involved in this signaling pathway by melatonin in HT-22 cells. Furthermore, we investigated whether melatonin regulated the expressions of CREB-BDNF associated with long-term memory processing in aged HT-22 cells. In conclusion, melatonin mediated the MT1-ERK-p90RSK-CREB-BDNF signaling pathway in the in vitro long-term memory processing model and increased the levels of p-CREB and BDNF expression in melatonin-treated cells compared to untreated HT-22 cells in the cellular aged state. Therefore, this paper suggests that melatonin induces CREB signaling pathways associated with long-term memory processing in vitro.
CREB signalcellular senescencelong-term memorymelatonin
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1. Journal Papers (연구논문) > 1. School of Medicine (의과대학) > Dept. of Internal Medicine (내과학)
1. Journal Papers (연구논문) > 1. School of Medicine (의과대학) > Dept. of Medical Education (의학교육학)
1. Journal Papers (연구논문) > 1. School of Medicine (의과대학) > Dept. of Biomedical Engineering (의용공학과)
Keimyung Author(s)
김대광; 김윤년; 이종하
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