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Role of HSP70 in Plasticity and Memory

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Heat Shock Proteins in Neuroscience

Part of the book series: Heat Shock Proteins ((HESP,volume 20))

Abstract

HSP70 are molecular chaperones that are present in neuronal cells, acting in cytoprotection and thermotolerance, preventing inflammation, apoptosis and cell death. It can be induced by a variety of stressful insults, but also by synaptic activity. Many physiological stimuli that induce long-term potentiation are also capable of stimulating the synthesis of HSP70. It’s induction is enhanced in the hippocampus after learning, during memory consolidation window, which is correlated to the animal performance and not the stress induced by the task. It is also induced markedly surround the synapses between the Shaffer collateral and pyramidal cells of the hippocampal CA1 region, a crucial structure involved in associative learning. Infusion of exogenous HSP70 facilitates memory consolidation through modulation of MAPK family activity in the hippocampus. HSP70 has been shown to be important in memory-related processes and can be quickly induced after training, indicating that memory is being mastered. Thus, it may be considered useful to be used as a learning index and also has a great potential as a pharmacological target to treat memory impairments. This chapter briefly reviews recent advances in our understanding of the role of HSP70 in synaptic plasticity and memory consolidation.

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Abbreviations

17-AAG:

17-N-allylamino-17-deethoxyglydanamycin

AD:

Alzheimer’s disease

AMPA:

α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid

BDNF:

brain-derived neurotrophic factor

CAMKIV:

calcium and calmodulin dependent protein kinase IV

CAMKII:

calcium and calmodulin dependent protein kinase II

cAMP:

cyclic adenosine monophosphate

CFC:

context fear conditioning

CFTR:

cystic fibrosis transmembrane conductance regulator

CNS:

central nervous system

CRE:

cAMP responsive element

ERK:

extracellular signal regulated kinase

GluR:

glutamate receptor

HSF:

heat hock factor

HSP:

heat shock proteins

JNK:

c-Jun NH (2) -terminal kinase

LTD:

long-term depression

LTP:

Long-term potentiation

MAPK:

mitogen-activated protein kinase

NF-κB:

nuclear factor κappa B

NGF:

neuronal growth factor

NMDA:

N-methyl D-aspartate

p-ERK:

phosphorylated extracellular signal regulated kinase

p-JNK:

c-Jun NH (2) -terminal phosphorylated kinase

PKA:

protein kinase A

PKB:

protein kinase B

PKC:

protein kinase C

PTSD:

post-traumatic stress disorder

rHSP70:

recombinant 70 kDa heat shock protein

SNARE:

N-ethylmaleimide soluble factor receptor binding protein

SRE:

serum response element

TLR:

toll like receptor

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Acknowledgements

The authors thank the Neuroscience Post-Graduate Program from the Federal University of Rio Grande do Sul (UFRGS). This work was supported in part by CAPES and PROPESQ (UFRGS).

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Porto, R.R., de Oliveira Alvares, L. (2019). Role of HSP70 in Plasticity and Memory. In: Asea, A., Kaur, P. (eds) Heat Shock Proteins in Neuroscience. Heat Shock Proteins, vol 20. Springer, Cham. https://doi.org/10.1007/978-3-030-24285-5_5

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