A key role for TGF-β1 in hippocampal synaptic plasticity and memory.
A key role for TGF-β1 in hippocampal synaptic plasticity and memory.
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DOI:
10.1038/srep11252
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发表时间:
2015-06-10
影响因子:
4.6
通讯作者:
Palmeri A
中科院分区:
文献类型:
--
作者:
Caraci F;Gulisano W;Guida CA;Impellizzeri AA;Drago F;Puzzo D;Palmeri A
Transforming Growth Factor β1 (TGF-β1) is a well-known neuroprotective and neurotrophic factor demonstrated to play a role in synaptic transmission. However, its involvement in physiological mechanisms underlying synaptic plasticity and memory at hippocampal level has not been thoroughly investigated. Here, we examine the role of TGF-β1 in hippocampal long-term potentiation (LTP) and memory in adult wild type mice. Our data provide evidence that administration of exogenous TGF-β1 is able to convert early-phase-LTP into late-phase-LTP. Furthermore, we show that the block of the endogenous TGF-β1 signaling pathway by the specific TGF-β1 inhibitor SB431542, impairs LTP and object recognition memory. The latter impairment was rescued by administration of exogenous TGF-β1, suggesting that endogenously produced TGF-β1 plays a role in physiological mechanisms underlying LTP and memory. Finally, TGF-β1 functional effect correlates with an increased expression of the phosphorylated transcription factor cAMP-Responsive Element Binding protein.
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