A prospective study of non-invasive preimplantation genetic testing for aneuploidies (NiPGT-A) using next-generation sequencing (NGS) on spent culture media (SCM)
Publication in refereed journal

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其它資訊
摘要Purpose
This study was to evaluate if spent culture media (SCM) of embryos could be used as a non-invasive tool to achieve aneuploidy screening. Ploidy calls, as well as concordance rates between PGT-A results from trophectoderm (TE) and SCM, were compared. Clinical outcomes of single euploid transfers were also evaluated.

Methods
The study was conducted from March 2017 to June 2018 in a university-based ART center. SCM of day 3 to the day(s) of TE biopsy of all biopsied blastocysts were collected for testing. PGT-A results of SCM were compared with the standard results of TE, with clinical relevance and outcomes examined.

Results
NiPGT-A using SCM gave a sensitivity of 81.6%, specificity of 48.3%, positive predictive value of 82.6%, and negative predictive value of 46.7% in ploidy calling. The concordance rates for autosomes and sex determination were 62.1% and 82.4%, respectively. There were 14 single embryo transfer cycles of euploids as determined by TE biopsy. Clinical outcomes not only confirmed 3 false positive results from SCM but also reflected the true ploidy status of the transferred embryo in one case. If ploidy calls were dichotomized without mosaic embryos, the sensitivity and NPV would increase to 91.0% and 66.7% (p = 0.60 and p = 0.25), respectively.

Conclusions
Cell-free DNA found in SCM could provide ploidy information of an embryo as in PGT-A from its TE. Given its potential to reflect the comprehensive chromosomal profile of the whole embryo, more research based on clinical outcomes is required to determine if SCM could be a reliable selection tool in PGT-A.
出版社接受日期30.06.2019
著者Yeung QSY, Zhang YX, Chung JPW, Lui WT, Kwok YKY, Gui B, Kong GWS, Cao Y, Li TC, Choy KW
期刊名稱Journal of Assisted Reproduction and Genetics
出版年份2019
月份8
日期15
卷號36
期次8
頁次1609 - 1621
國際標準期刊號1058-0468
電子國際標準期刊號1573-7330
語言英式英語
關鍵詞Preimplantationgenetictesting .PGT-A .Aneuploidy .NiPGT-A .Spentculturemedia .Next-generationsequencing

上次更新時間 2020-02-07 於 03:25