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Drug target-gene signatures that predict teratogenicity are enriched for developmentally related genes.

ABSTRACT: Drugs prescribed during pregnancy affect two populations simultaneously: fetuses and their mothers. Drug-induced fetal injury (teratogenicity) has a significant impact on current and future public health. Teratogenic risk designation of many drugs relies on associating rare fetal events with rare environmental exposures. Therefore we aim to develop preclinical predictive models of clinical teratogenicity. We collated public databases for drug-target-gene relationships for 619 drugs spanning the 5 pregnancy risk classes. Genes targeted by high risk but not low risk drugs demonstrated 79% accuracy (p < 0.0001 vs. random) for predicting high vs. low fetal risk on cross validation. Functional enrichment analysis revealed that target genes of drugs known to be safe in pregnancy contained no developmentally related terms, while target genes of known teratogens contained 85 developmentally related terms. Drug target gene signatures that are enriched for known developmental genes may provide valuable preclinical predictive information regarding drug pregnancy risk.

SUBMITTER: Schachter AD

PROVIDER: S-EPMC3139687 | biostudies-literature | 2011 May

REPOSITORIES: biostudies-literature

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Drug target-gene signatures that predict teratogenicity are enriched for developmentally related genes.

Schachter Asher D AD Kohane Isaac S IS

Reproductive toxicology (Elmsford, N.Y.) 20101127 4

Drugs prescribed during pregnancy affect two populations simultaneously: fetuses and their mothers. Drug-induced fetal injury (teratogenicity) has a significant impact on current and future public health. Teratogenic risk designation of many drugs relies on associating rare fetal events with rare environmental exposures. Therefore we aim to develop preclinical predictive models of clinical teratogenicity. We collated public databases for drug-target-gene relationships for 619 drugs spanning the ...[more]

PMID: 21115113

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Project description:Since the 1960s, drugs have been known to cause teratogenic effects in humans. Such teratogenicity has been postulated to be influenced by genetics. The aim of this review was to provide an overview of the current knowledge on genetic susceptibility to drug teratogenicity in humans and reflect on future directions within the field of genetic teratology. We focused on 12 drugs and drug classes with evidence of teratogenic action, as well as 29 drugs and drug classes with conflicting evidence of fetal safety in humans. An extensive literature search was performed in the PubMed and EMBASE databases using terms related to the drugs of interest, congenital anomalies and fetal development abnormalities, and genetic variation and susceptibility. A total of 29 studies were included in the final data extraction. The eligible studies were published between 1999 and 2020 in 10 different countries, and comprised 28 candidate gene and 1 whole-exome sequencing studies. The sample sizes ranged from 20 to 9,774 individuals. Several drugs were investigated, including antidepressants (nine studies), thalidomide (seven studies), antiepileptic drugs (five studies), glucocorticoids (four studies), acetaminophen (two studies), and sex hormones (estrogens, one study; 17-alpha hydroxyprogesterone caproate, one study). The main neonatal phenotypic outcomes included perinatal complications, cardiovascular congenital anomalies, and neurodevelopmental outcomes. The review demonstrated that studies on genetic teratology are generally small, heterogeneous, and exhibit inconsistent results. The most convincing findings were genetic variants in SLC6A4, MTHFR, and NR3C1, which were associated with drug teratogenicity by antidepressants, antiepileptics, and glucocorticoids, respectively. Notably, this review demonstrated the large knowledge gap regarding genetic susceptibility to drug teratogenicity, emphasizing the need for further efforts in the field. Future studies may be improved by increasing the sample size and applying genome-wide approaches to promote the interpretation of results. Such studies could support the clinical implementation of genetic screening to provide safer drug use in pregnant women in need of drugs.

Dataset Information

Drug target-gene signatures that predict teratogenicity are enriched for developmentally related genes.

Publications

Drug target-gene signatures that predict teratogenicity are enriched for developmentally related genes.

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