Cited by 396Neurogenesis and neuroplasticity mechanismsNeuroinflammation and Neurodegeneration MechanismsNerve injury and regeneration

Neurogenesis and aging: FGF‐2 and HB‐EGF restore neurogenesis in hippocampus and subventricular zone of aged mice

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Jin, Kunlin, Sun, Yunjuan, Xie, Lin, Batteur, Sophie, Mao, Xiao Ou, Smelick, Chris, Logvinova, Anna, Greenberg, David A.·2003·Aging Cell

Abstract

Summary: Neurogenesis, which may contribute to the ability of the adult brain to function normally and adapt to disease, nevertheless declines with advancing age. Adult neurogenesis can be enhanced by administration of growth factors, but whether the aged brain remains responsive to these factors is unknown. We compared the effects of intracerebroventricular fibroblast growth factor (FGF)‐2 and heparin‐binding epidermal growth factor‐like growth factor (HB‐EGF) on neurogenesis in the hippocampal dentate subgranular zone (SGZ) and the subventricular zone (SVZ) of young adult (3‐month) and aged (20‐month) mice. Neurogenesis, measured by labelling with bromodeoxyuridine (BrdU) and by expression of doublecortin, was reduced by ∼90% in SGZ and by ∼50% in SVZ of aged mice. HB‐EGF increased BrdU labelling in SGZ at 3 months by ∼60% and at 20 months by ∼450%, which increased the number of BrdU‐labelled cells in SGZ of aged mice to ∼25% of that in young adults. FGF‐2 also stimulated BrdU labelling in SGZ, by ∼25% at 3 months and by ∼250% at 20 months, increasing the number of newborn neurones in older mice to ∼20% of that in younger mice. In SVZ, HB‐EGF and FGF‐2 increased BrdU incorporation by ∼140% at 3 months and ∼170% at 20 months, so the number of BrdU‐labelled cells was comparable in untreated 3‐month‐old and growth factor‐treated 20‐month‐old mice. These results demonstrate that the aged brain retains the capacity to respond to exogenous growth factors with increased neurogenesis, which may have implications for the therapeutic potential of neurogenesis enhancement in age‐associated neurological disorders.

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Crossref · 10.1046/j.1474-9728.2003.00046.x

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Authors
Jin, K., Sun, Y., Xie, L., Batteur, S., Mao, X. O., Smelick, C., Logvinova, A., & Greenberg, D. A.
Affiliations
Buck Institute for Research on Aging (US)
Corresponding author
Greenberg, David A.
Venue
Aging Cell
Publisher
Wiley
Published
2003-05-28
Volume
2
Issue
3
Pages
175-183
ISSN
  • 1474-9718 (ISSN-L)
  • 1474-9726
OpenAlex
W2091535724
Cited by
396
References
36
Citations by year
2026: 1 · 2025: 7 · 2024: 6 · 2023: 6 · 2022: 4 · 2021: 14 · 2020: 13 · 2019: 15 · 2018: 8 · 2017: 19 · 2016: 20 · 2015: 19 · 2014: 19 · 2013: 38 · 2012: 22
FWCI
5.36
Type
journal article
Language
en
Open access
Locations
  • Aging Cell (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute of Neurological Disorders and Stroke (NS44110)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
Keywords
adult neurogenesis, aging, FGF2, HB-EGF, dentate gyrus, subventricular zone, growth factor responsiveness, brain aging
MeSH terms
Aging, Animals, Cerebral Ventricles, Epidermal Growth Factor, Heparin, Hippocampus, Male, Mice, Inbred Strains, Neurons, Fibroblast Growth Factor 2, Dentate Gyrus, Intercellular Signaling Peptides and Proteins, Mice, Heparin-binding EGF-like Growth Factor

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