Title Application of next-generation sequencing to preimplantation genetic testing for recurrent hydatidiform mole patients
Authors Yang, Jingyi
Yan, Zhiqiang
Liu, Yan
Zhu, Xiaohui
Li, Rong
Liu, Ping
Yan, Liying
Qiao, Jie
Zhi, Xu
Affiliation Peking Univ Third Hosp, Ctr Reprod Med, Dept Obstet & Gynecol, 49 North Garden Rd, Beijing 100191, Peoples R China
Peking Univ, Hosp 3, Sch Basic Med Sci, Dept Pathol,Hlth Sci Ctr, Beijing 100191, Peoples R China
Keywords NLRP7
PREVENTION
DIAGNOSIS
Issue Date Oct-2021
Publisher JOURNAL OF ASSISTED REPRODUCTION AND GENETICS
Abstract Purpose To study the application of next-generation sequencing on preimplantation genetic testing for recurrent hydatidiform mole patients. Methods A total of ten recurrent hydatidiform mole patients aged 27-34 years with a history of at least twice hydatidiform moles and no normal pregnancy were collected from 2019 to 2020. The diagnosis of hydatidiform mole type was clarified using short tandem repeat genotyping on products of conception, and whole-exome sequencing was applied for all patients and their partners. Seven recurrent hydatidiform mole patients with complete hydatidiform mole/partial hydatidiform mole type among previous hydatidiform mole tissues and no Pathogenetic/Likely pathogenetic/Uncertain significance variants in NLRP7/KHDC3L/MEI1/C11orf80 underwent a procedure of preimplantation genetic testing. Next-generation sequencing for analyzing the copy number variants and the numbers of heterozygous single nucleotide polymorphism was adopted to clarify the ploidy and parental origin of the embryo chromosomes in vitro. Embryos with biparental diploidy were selected for transfer. Results Seven patients have undergone the procedure of preimplantation genetic testing, and twenty-three embryos were obtained, among which 82.6% (n = 19) were identified transferrable and 17.4% (n = 4) were identified aneuploid. Two patients have delivered healthy babies and another is currently in the second trimester after transfer. Conclusion Analyzing the copy number variants and the numbers of heterozygous single nucleotide polymorphism on the basis of next-generation sequencing can be utilized in the procedure of preimplantation genetic testing among part of recurrent hydatidiform mole patients. The current study is effective to reduce the occurrence of hydatidiform mole with improved clinical strategy, the advanced testing technology and analysis methods, as three of seven patients have conceived or delivered successfully.
URI http://hdl.handle.net/20.500.11897/626388
ISSN 1058-0468
DOI 10.1007/s10815-021-02325-8
Indexed SCI(E)
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