Cited by 79Heat shock proteins researchNeuroscience and Neuropharmacology ResearchNeurogenesis and neuroplasticity mechanisms

Exercise can increase small heat shock proteins (sHSP) and pre- and post-synaptic proteins in the hippocampus

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Hu, Shuxin, Ying, Zhe, Gomez-Pinilla, Fernando, Frautschy, Sally Ann·2009·Brain Research

Abstract

The molecular events mediating the complex interaction between exercise and cognition are not well-understood. Although many aspects of the signal transduction pathways mediate exercise induced improvement in cognition are elucidated, little is known about the molecular events interrelating physiological stress with synaptic proteins, following physical exercise. Small heat shock proteins (sHSP), HSP27 and alpha-B-crystallin are co-localized to synapses and astrocytes, but their role in the brain is not well-understood. We investigated whether their levels in the hippocampus were modulated by exercise, using a well characterized voluntary exercise paradigm. Since sHSP are known to be regulated by many intracellular signaling molecules in other cells types outside the brain, we investigated whether similar regulation may serve a role in the brain by measuring protein kinase B (PKB/Akt), pGSK3 and the mitogen activated protein (MAP) kinases, p38, phospho-extracellular signal-regulated kinase (pERK) and phospho-c-Jun kinase (pJNK). Results demonstrated exercise-dependent increases in HSP27 and alpha-B-crystallin levels. We observed that increases in sHSP coincided with robust elevations in the presynaptic protein, SNAP25 and the post-synaptic proteins NR2b and PSD95. Exercise had a differential impact on kinases, significantly reducing pAkt and pERK, while increasing p38 MAPK. In conclusion, we demonstrate four early novel hippocampal responses to exercise that have not been identified previously: the induction of (1) sHSPs (2) the synaptic proteins SNAP-25, NR2b, and PSD-95, (3) the MAP kinase p38 and (4) the immediate early gene product MKP1. We speculate that sHSP may play a role in synaptic plasticity in response to exercise.

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Crossref · 10.1016/j.brainres.2008.10.054

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  • Physical exercise directly promotes neurogenesis, cell survival, synaptogenesis, synaptic plasticity, and angiogenesis.

    “physical exercise also directly promotes neurogenesis, cell survival [187], synaptogenesis, synaptic plasticity [54, 96] and angiogenesis [99]”

    From The neuropathology of sport (2014) · cites this paper as [96]

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Authors
Hu, S., Ying, Z., Gomez-Pinilla, F., & Frautschy, S. A.
Affiliations
  • Greater Los Angeles Geriatric Research Education and Clinical Center (US)
  • University of California, Los Angeles (US)
Venue
Brain Research
Publisher
Elsevier BV
Published
2009-01
Volume
1249
Pages
191-201
ISSN
0006-8993 (ISSN-L)
OpenAlex
W2037030170
Cited by
79
References
85
Citations by year
2026: 1 · 2025: 4 · 2024: 2 · 2023: 2 · 2022: 3 · 2021: 2 · 2020: 5 · 2019: 3 · 2018: 2 · 2017: 4 · 2016: 7 · 2015: 4 · 2014: 7 · 2013: 8 · 2012: 8
FWCI
2.33
Type
journal article
Language
en
Open access
Locations
  • Brain Research (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute on Aging (R01AG016793, U01AG028583, R01AG010685, R01AG021975, AG021975)
  • National Institute of Neurological Disorders and Stroke (R01NS056413, NS 50465, R01NS050465)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
physical activity, small heat shock proteins, HSP27, alphaB-crystallin, hippocampus, synaptic proteins, SNAP-25, NR2B, PSD-95, MAPK signaling, p38 MAPK, ERK, Akt, MKP-1, synaptic plasticity, exercise and cognition, astrocytes
MeSH terms
Disks Large Homolog 4 Protein, Analysis of Variance, Animals, Glial Fibrillary Acidic Protein, Hippocampus, Male, Membrane Proteins, Physical Conditioning, Animal, Synapses, Blotting, Western, Signal Transduction, Linear Models, Receptors, N-Methyl-D-Aspartate, Rats, Sprague-Dawley, MAP Kinase Signaling System, alpha-Crystallin B Chain, Intracellular Signaling Peptides and Proteins, Extracellular Signal-Regulated MAP Kinases, Synaptosomal-Associated Protein 25, Rats, HSP27 Heat-Shock Proteins

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