Cited by 270Neuroscience and Neuropharmacology ResearchGenetics and Neurodevelopmental DisordersNeurogenesis and neuroplasticity mechanisms

Synaptophysin and postsynaptic density protein 95 in the human prefrontal cortex from mid-gestation into early adulthood

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Glantz, L.A., Gilmore, J.H., Hamer, R.M., Lieberman, J.A., Jarskog, L.F.·2007·Neuroscience

Abstract

Previous studies of postnatal synaptic development in human frontal cortex have shown that synaptic density rises after birth, reaches a plateau in childhood and then decreases to adult levels by late adolescence. A similar pattern has been seen in nonhuman primate cortex. These earlier studies in human cortex are limited, however, by significant age gaps in study subjects at critical inflection points of the developmental curve. Additionally, it is unclear if synaptic development occurs in different patterns in different cortical layers in prefrontal cortex (PFC). The purpose of this study was to examine synaptic density in human PFC across development by measuring two synaptic marker proteins: synaptophysin (presynaptic), and postsynaptic density protein 95 (PSD-95; postsynaptic). Western blotting was used to assess the relative levels of synaptophysin and PSD-95 in dorsolateral PFC of 42 subjects, distributed in age from 18 weeks gestation to 25 years. In addition, synaptophysin immunoreactivity was examined in each layer of areas 9 and 46 of PFC in 24 subjects, ranging in age from 0.1-25 years. Synaptophysin levels slowly increased from birth until age 5 and then increased more rapidly to peak in late childhood around age 10. Synaptophysin subsequently decreased until the adult level was reached by mid-adolescence, around age 16. PSD-95 levels increased postnatally to reach a stable plateau by early childhood with a slight reduction in late adolescence and early adulthood. The pattern of synaptophysin immunoreactivity seen with immunohistochemistry was similar to the Western experiments but the changes across age were more subtle, with little change by layer within and across age. The developmental patterns exhibited by these synaptic marker proteins expand upon previous studies of developmental synaptic changes in human frontal cortex; synaptic density increases steadily from birth to late childhood, then decreases in early adolescence to reach adult levels by late adolescence.

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Crossref · 10.1016/j.neuroscience.2007.06.036

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  • Synaptophysin and PSD-95, markers of excitatory synapses, reach their peak in human cortex around age 8 before declining to adult levels by 18 years of age.

    “Synaptophysin and PSD-95, markers of excitatory synapses, reach their peak in human cortex ~age 8 (group consisted of 6–10 year olds, mean age 8.3) before declining to adult levels by 18 years of age (Glantz et al., 2007).”

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Authors
Glantz, L. A., Gilmore, J. H., Hamer, R. M., Lieberman, J. A., & Jarskog, L. F.
Affiliations
  • University of North Carolina at Chapel Hill (US)
  • Columbia University (US)
Venue
Neuroscience
Publisher
Elsevier BV
Published
2007-11
Volume
149
Issue
3
Pages
582-591
ISSN
0306-4522 (ISSN-L)
OpenAlex
W2018710502
Cited by
270
References
71
Citations by year
2026: 13 · 2025: 14 · 2024: 15 · 2023: 23 · 2022: 12 · 2021: 18 · 2020: 15 · 2019: 18 · 2018: 13 · 2017: 16 · 2016: 18 · 2015: 13 · 2014: 6 · 2013: 17 · 2012: 14
FWCI
5.02
Type
journal article
Language
en
Open access
Locations
  • Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • UNC Libraries
Funders
National Institute of Mental Health (MH-64065, P50MH064065, K01MH069655, MH-069655, MH-01752, K08MH001752)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
synaptophysin, PSD-95, prefrontal cortex, synaptic development, synaptic density, human brain development, prenatal development, cortical layers, dorsolateral prefrontal cortex, adolescence, postnatal development
MeSH terms
Disks Large Homolog 4 Protein, Adolescent, Adult, Animals, Child, Child, Preschool, Female, Gestational Age, Humans, Image Processing, Computer-Assisted, Immunohistochemistry, Infant, Infant, Newborn, Male, Membrane Proteins, Nerve Tissue Proteins, Postmortem Changes, Pregnancy, Synapses, Blotting, Western, Synaptophysin, Rats, Sprague-Dawley, Prefrontal Cortex, Intracellular Signaling Peptides and Proteins, Rats

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