Cited by 63Toxic Organic Pollutants ImpactAutism Spectrum Disorder ResearchEffects and risks of endocrine disrupting chemicals

Prenatal Polycyclic Aromatic Hydrocarbon Exposure Leads to Behavioral Deficits and Downregulation of Receptor Tyrosine Kinase, MET

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Sheng, Liu, Ding, Xinxin, Ferguson, Marcus, McCallister, Monique, Rhoades, Raina, Maguire, Mark, Ramesh, Aramandla, Aschner, Michael +3 more·2010·Toxicological Sciences

Abstract

Gene by environment interactions (G × E) are thought to underlie neurodevelopmental disorder, etiology, neurodegenerative disorders, including the multiple forms of autism spectrum disorder. However, there is limited biological information, indicating an interaction between specific genes and environmental components. The present study focuses on a major component of airborne pollutants, polycyclic aromatic hydrocarbons (PAHs), such as benzo(a)pyrene [B(a)P], which negatively impacts cognitive development in children who have been exposed in utero. In our study, prenatal exposure of Cpr(lox/lox) timed-pregnant dams to B(a)P (0, 150, 300, and 600 μg/kg body weight via oral gavage) on embryonic day (E14-E17) consistent with our susceptibility-exposure paradigm was combined with the analysis of a replicated autism risk gene, the receptor tyrosine kinase, Met. The results demonstrate a dose-dependent increase in B(a)P metabolite generation in B(a)P-exposed Cpr(lox/lox) offspring. Additionally, a sustained persistence of hydroxy metabolites during the onset of synapse formation was noted, corresponding to the peak of Met expression. Prenatal B(a)P exposure also downregulated Met RNA and protein levels and dysregulated normal temporal patterns of expression during synaptogenesis. Consistent with these data, transcriptional cell-based assays demonstrated that B(a)P exposure directly reduces human MET promoter activity. Furthermore, a functional readout of in utero B(a)P exposure showed a robust reduction in novel object discrimination in B(a)P-exposed Cpr(lox/lox) offspring. These results confirm the notion that common pollutants, such as the PAH B(a)P, can have a direct negative impact on the regulated developmental expression of an autism risk gene with associated negative behavioral learning and memory outcomes.

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  • Mice prenatally exposed to the PAH benzo(a)pyrene display blunted MET gene expression and behavioral deficits in a novelty test.

    “Mice prenatally exposed to the PAH benzo(a)pyrene display blunted MET gene expression and behavioral deficits in a novelty test [253].”

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Authors
Sheng, L., Ding, X., Ferguson, M., McCallister, M., Rhoades, R., Maguire, M., Ramesh, A., Aschner, M., Campbell, D., Levitt, P., & Hood, D. B.
Affiliations
  • New York State Department of Health (US)
  • Meharry Medical College (US)
  • Vanderbilt University (US)
  • University of Southern California (US)
Venue
Toxicological Sciences
Published
2010-10-01
Volume
118
Issue
2
Pages
625-634
ISSN
  • 1096-0929 (ISSN-L)
  • 1096-6080
OpenAlex
W2121068123
Cited by
63
References
48
Citations by year
2025: 2 · 2024: 3 · 2023: 3 · 2022: 4 · 2021: 3 · 2020: 4 · 2019: 5 · 2018: 1 · 2017: 3 · 2016: 5 · 2015: 9 · 2014: 5 · 2013: 5 · 2012: 8
FWCI
3.91
Type
journal article
Language
en
Open access
Locations
  • Toxicological Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • U.S. Public Health Service (G12RRO3032)
  • National Institute of Mental Health (T32MH065782)
  • National Cancer Institute (R01CA142845)
  • National Institute of General Medical Sciences (S06GM08037, S06GM008037)
  • National Institute of Neurological Disorders and Stroke (U54NS041071)
  • National Institute of Environmental Health Sciences (R56ES017448, S11ES014156, R01ES007462)
  • National Center for Research Resources (G12RR003032)
Topics
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Toxic Organic Pollutants Impact
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Effects and risks of endocrine disrupting chemicals
Keywords
polycyclic aromatic hydrocarbons, benzo[a]pyrene, prenatal exposure, MET receptor tyrosine kinase, autism risk genes, gene-environment interaction, synaptogenesis, novel object discrimination, learning and memory impairment, dose-dependent toxicity, behavioral development
MeSH terms
Administration, Oral, Air Pollutants, Animals, Autistic Disorder, Behavior, Animal, Cells, Cultured, Cerebral Cortex, Cognition, Discrimination Learning, Disease Models, Animal, Embryo, Mammalian, Exploratory Behavior, Female, Humans, Male, Mice, Transgenic, Polycyclic Aromatic Hydrocarbons, Pregnancy, RNA, Messenger, Down-Regulation, Gene Expression, Maternal Exposure, Proto-Oncogene Proteins c-met, Mice

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