Prenatal diagnosis of sex chromosome mosaicism with two marker chromosomes in three cell lines and a review of the literature

  • Authors:
    • Jianli Zheng
    • Xiaoyu Yang
    • Haiyan Lu
    • Yongjuan Guan
    • Fangfang Yang
    • Mengjun Xu
    • Min Li
    • Xiuqing Ji
    • Yan Wang
    • Ping Hu
    • Yun Zhou
  • View Affiliations

  • Published online on: December 24, 2018     https://doi.org/10.3892/mmr.2018.9798
  • Pages: 1791-1796
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Abstract

The present study described the diagnosis of a fetus with sex chromosome mosaicism in three cell lines and two marker chromosomes. A 24‑year‑old woman underwent amniocentesis at 21 weeks and 4 days of gestation due to noninvasive prenatal testing identifying that the fetus had sex chromosome abnormalities. Amniotic cell culture revealed a karyotype of 45,X[13]/46,X,+mar1[6]/46,X,+mar2[9], and prenatal ultrasound was unremarkable. The woman underwent repeat amniocentesis at 23 weeks and 4 days of gestation for molecular detection. Single nucleotide polymorphism (SNP) microarray analysis on uncultured amniocytes revealed that the fetus had two Y chromosomes and 7.8‑Mb deletions in Yq11.222q12. The deletion regions included DAZ, RBMY and PRY genes, which could cause spermatogenesis obstacle and sterility. Interphase fluorescence in situ hybridization (FISH) using centromeric probes DXZ1/DYZ3/D18Z1 was performed on uncultured amniocytes to verify the two marker chromosomes to be Y chromosome derivatives. According to these examinations, the mar1 was identified as a derivative of the Y chromosome with a deletion in Yq11.222q12, and the mar2 was identified as a dicentric derivative of the Y chromosome. The molecular karyotype was therefore 45,X,ish(DXZ1+, DYZ3‑,D18Z1++)[5]/46,X,del(Y)(q11.222),ish(DXZ1+,DYZ3+,D18Z1++)[11]/46, X,idic(Y)(q11.222),ish(DXZ1+,DYZ3++,D18Z1++)[14]. The comprehensive use of cytogenetic, SNP array and FISH detections was advantageous for accurately identifying the karyotype, identifying the origin of the marker chromosome and preparing effective genetic counseling.
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March-2019
Volume 19 Issue 3

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Zheng J, Yang X, Lu H, Guan Y, Yang F, Xu M, Li M, Ji X, Wang Y, Hu P, Hu P, et al: Prenatal diagnosis of sex chromosome mosaicism with two marker chromosomes in three cell lines and a review of the literature. Mol Med Rep 19: 1791-1796, 2019.
APA
Zheng, J., Yang, X., Lu, H., Guan, Y., Yang, F., Xu, M. ... Zhou, Y. (2019). Prenatal diagnosis of sex chromosome mosaicism with two marker chromosomes in three cell lines and a review of the literature. Molecular Medicine Reports, 19, 1791-1796. https://doi.org/10.3892/mmr.2018.9798
MLA
Zheng, J., Yang, X., Lu, H., Guan, Y., Yang, F., Xu, M., Li, M., Ji, X., Wang, Y., Hu, P., Zhou, Y."Prenatal diagnosis of sex chromosome mosaicism with two marker chromosomes in three cell lines and a review of the literature". Molecular Medicine Reports 19.3 (2019): 1791-1796.
Chicago
Zheng, J., Yang, X., Lu, H., Guan, Y., Yang, F., Xu, M., Li, M., Ji, X., Wang, Y., Hu, P., Zhou, Y."Prenatal diagnosis of sex chromosome mosaicism with two marker chromosomes in three cell lines and a review of the literature". Molecular Medicine Reports 19, no. 3 (2019): 1791-1796. https://doi.org/10.3892/mmr.2018.9798