Cited by 109Genetics and Neurodevelopmental DisordersAlzheimer's disease research and treatmentsAutism Spectrum Disorder Research

Activity-dependent neuroprotective protein (ADNP) exhibits striking sexual dichotomy impacting on autistic and Alzheimer’s pathologies

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Malishkevich, A, Amram, N, Hacohen-Kleiman, G, Magen, I, Giladi, E, Gozes, I·2015·Translational Psychiatry

Abstract

Activity-dependent neuroprotective protein (ADNP) is a most frequent autism spectrum disorder (ASD)-associated gene and the only protein significantly decreasing in the serum of Alzheimer's disease (AD) patients. Is ADNP associated with ASD being more prevalent in boys and AD more prevalent in women? Our results revealed sex-related learning/memory differences in mice, reflecting hippocampal expression changes in ADNP and ADNP-controlled AD/ASD risk genes. Hippocampal ADNP transcript content was doubled in male vs female mice, with females showing equal expression to ADNP haploinsufficient (ADNP(+/)(-)) males and no significant genotype-associated reduction. Increased male ADNP expression was replicated in human postmortem hippocampal samples. The hippocampal transcript for apolipoprotein E (the major risk gene for AD) was doubled in female mice compared with males, and further doubled in the ADNP(+/-) females, contrasting a decrease in ADNP(+/-) males. Previously, overexpression of the eukaryotic translation initiation factor 4E (eIF4E) led to ASD-like phenotype in mice. Here, we identified binding sites on ADNP for eIF4E and co-immunoprecipitation. Furthermore, hippocampal eIF4E expression was specifically increased in young ADNP(+/-) male mice. Behaviorally, ADNP(+/-) male mice exhibited deficiencies in object recognition and social memory compared with ADNP(+/+) mice, while ADNP(+/-) females were partially spared. Contrasting males, which preferred novel over familiar mice, ADNP(+/+) females showed no preference to novel mice and ADNP(+/-) females did not prefer mice over object. ADNP expression, positioned as a master regulator of key ASD and AD risk genes, introduces a novel concept of hippocampal gene-regulated sexual dimorphism and an ADNP(+/-) animal model for translational psychiatry.

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Research works printed but not linked: 2

  1. Gozes I Iram T Maryanovsky E Arviv C Rozenberg L Schirer Y Novel tubulin and tau neuroprotective fragments sharing structural similarities with the drug candidate NAP (Davuentide) J Alzheimers Dis 2014 40 S23 S36 24503616
  2. Gozes I Davunetide (NAP) pharmacology: neuroprotection and tauIn: Martinez A (ed). Emerging Drugs and Targets for Alzheimer's Disease Royal Society of Chemistry: Cambridge, UK 2010 108 128

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Authors
Malishkevich, A., Amram, N., Hacohen-Kleiman, G., Magen, I., Giladi, E., & Gozes, I.
Affiliations
Tel Aviv University (IL)
Corresponding author
Gozes, I
Venue
Translational Psychiatry
Published
2015-02-03
Volume
5
Issue
2
Pages
e501-e501
ISSN
2158-3188 (ISSN-L)
OpenAlex
W2061003477
Cited by
109
References
62
Citations by year
2026: 4 · 2025: 7 · 2024: 11 · 2023: 10 · 2022: 11 · 2021: 5 · 2020: 16 · 2019: 13 · 2018: 7 · 2017: 10 · 2016: 9 · 2015: 6
FWCI
7.30
Type
journal article
Language
en
Open access
Locations
  • Translational Psychiatry (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
Funders
Tel Aviv University
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
Keywords
ADNP, autism spectrum disorder, Alzheimer's disease, sex differences, sexual dimorphism, hippocampus, apolipoprotein E, eIF4E, learning and memory, social memory, object recognition, risk genes
MeSH terms
Alzheimer Disease, Animals, Apolipoproteins E, Autistic Disorder, Behavior, Animal, Female, Heterozygote, Hippocampus, Humans, Male, Memory, Nerve Tissue Proteins, RNA, Messenger, Sex Factors, Social Behavior, Homeodomain Proteins, Gene Expression Profiling, Recognition, Psychology, Eukaryotic Initiation Factor-4E, Mice

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