Cited by 52Genetic and Clinical Aspects of Sex Determination and Chromosomal AbnormalitiesSexual Differentiation and DisordersGenetics and Neurodevelopmental Disorders

Amniotic fluid RNA gene expression profiling provides insights into the phenotype of Turner syndrome

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Massingham, Lauren J., Johnson, Kirby L., Scholl, Thomas M., Slonim, Donna K., Wick, Heather C., Bianchi, Diana W.·2014·Human Genetics

Abstract

Turner syndrome is a sex chromosome aneuploidy with characteristic malformations. Amniotic fluid, a complex biological material, could contribute to the understanding of Turner syndrome pathogenesis. In this pilot study, global gene expression analysis of cell-free RNA in amniotic fluid supernatant was utilized to identify specific genes/organ systems that may play a role in Turner syndrome pathophysiology. Cell-free RNA from amniotic fluid of five mid-trimester Turner syndrome fetuses and five euploid female fetuses matched for gestational age was extracted, amplified, and hybridized onto Affymetrix(®) U133 Plus 2.0 arrays. Significantly differentially regulated genes were identified using paired t tests. Biological interpretation was performed using Ingenuity Pathway Analysis and BioGPS gene expression atlas. There were 470 statistically significantly differentially expressed genes identified. They were widely distributed across the genome. XIST was significantly down-regulated (p < 0.0001); SHOX was not differentially expressed. One of the most highly represented organ systems was the hematologic/immune system, distinguishing the Turner syndrome transcriptome from other aneuploidies we previously studied. Manual curation of the differentially expressed gene list identified genes of possible pathologic significance, including NFATC3, IGFBP5, and LDLR. Transcriptomic differences in the amniotic fluid of Turner syndrome fetuses are due to genome-wide dysregulation. The hematologic/immune system differences may play a role in early-onset autoimmune dysfunction. Other genes identified with possible pathologic significance are associated with cardiac and skeletal systems, which are known to be affected in females with Turner syndrome. The discovery-driven approach described here may be useful in elucidating novel mechanisms of disease in Turner syndrome.

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  • There is evidence of a unique and tissue-specific genome-wide methylation and transcription landscape in TS extending to both the X chromosome and the autosomes.

    “There is evidence of a unique and tissue-specific genome-wide methylation and transcription landscape in TS extending to both the X chromosome and the autosomes.103-109”

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Authors
Massingham, L. J., Johnson, K. L., Scholl, T. M., Slonim, D. K., Wick, H. C., & Bianchi, D. W.
Affiliations
  • Tufts Medical Center (US)
  • Tufts University (US)
  • LabCorp (United States) (US)
Corresponding author
Massingham, Lauren J.
Venue
Human Genetics
Published
2014-05-22
Volume
133
Issue
9
Pages
1075-1082
ISSN
  • 0018-7348 (ISSN-L)
  • 0340-6717
  • 1432-1203
OpenAlex
W2092774579
Cited by
52
References
39
Citations by year
2026: 1 · 2025: 5 · 2024: 5 · 2023: 2 · 2022: 5 · 2021: 7 · 2020: 3 · 2019: 6 · 2018: 3 · 2017: 2 · 2016: 6 · 2015: 6 · 2014: 1
FWCI
3.28
Type
journal article
Language
en
Open access
Locations
  • Human Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01HD058880, R01HD042053, R01HD42053-10)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sexual Differentiation and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
Turner syndrome, amniotic fluid, cell-free RNA, gene expression profiling, sex chromosome aneuploidy, XIST, SHOX, autoimmune dysfunction, NFATc3, IGFBP-5, LDL receptor
MeSH terms
Amniotic Fluid, Aneuploidy, Female, Humans, Organ Specificity, Phenotype, Pilot Projects, Pregnancy, RNA, Messenger, Turner Syndrome, Down-Regulation, Up-Regulation, Case-Control Studies, DNA, Complementary, Gene Expression Regulation, Developmental, Oligonucleotide Array Sequence Analysis, Gene Expression Profiling, Chromosomes, Human, X, Transcriptome, Karyotype

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