PMID- 32081770 OWN - NLM STAT- MEDLINE DCOM- 20210607 LR - 20210607 IS - 1096-1194 (Electronic) IS - 0890-8508 (Linking) VI - 51 DP - 2020 Jun TI - Selective growth of mosaic cells in chromosomal analysis of chorionic villi by conventional karyotyping. PG - 101532 LID - S0890-8508(19)30396-2 [pii] LID - 10.1016/j.mcp.2020.101532 [doi] AB - The major cause of first-trimester pregnancy loss is chromosomal abnormality, which could be detected by many methods. Conventional karyotyping based on chorionic villi (CV) culture is frequently used but may have limitations due to culture failure and selective growth of cells. In this study, we aimed to investigate the degree of mosaicism present in villi by a combination of three different methods, namely conventional karyotyping following culture, multiplex ligation-dependent probe amplification (MLPA) and fluorescence in situ hybridization (FISH), with a view to exploring the incidence of selective growth of mosaic CV cells during the process of culture for conventional karyotyping. CV samples were obtained from 207 patients with early spontaneous miscarriage (ESM). There were 56 (56/207, 27.1%) samples with mosaic chromosome detected by FISH based on four or five types of probes in this study. The incidence of selective growth of mosaic cells during the process of conventional karyotyping was 6.0% (11/183). In addition, we found that mosaic cell lines as low as 2% could grow and completely dominate the outcome of karyotyping results. The selective growth of a particular cell line during culture, whether euploidy or aneuploidy, could supress the diagnosis of mosaicism. CI - Copyright (c) 2020 Elsevier Ltd. All rights reserved. FAU - Zhang, Yingying AU - Zhang Y AD - Center for Reproductive Medicine, Department of Obstetrics and Gynecology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, PR China; Department of Obstetrics and Gynecology, Chinese University of Hong Kong, Shatin, Hong Kong, 999077, PR China. FAU - Lei, Qiong AU - Lei Q AD - The Department of Obstetrics, Women and Children's Hospital of Guangdong Province, Guangzhou, 510080, PR China. FAU - Liu, Juan AU - Liu J AD - The Department of Gynecology, Traditional Medical Hospital of Guangdong Province, Guangzhou, 510080, PR China. FAU - Lin, Mingmei AU - Lin M AD - Department of Obstetrics, Third Affiliated Hospital of Peking University, Beijing, 100191, PR China. FAU - Luo, Lu AU - Luo L AD - Center for Reproductive Medicine, Department of Obstetrics and Gynecology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, PR China. FAU - Li, Tinchiu AU - Li T AD - Department of Obstetrics and Gynecology, Chinese University of Hong Kong, Shatin, Hong Kong, 999077, PR China. FAU - Wang, Qiong AU - Wang Q AD - Center for Reproductive Medicine, Department of Obstetrics and Gynecology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, PR China. Electronic address: wqiong@mail.sysu.edu.cn. FAU - Zhou, Canquan AU - Zhou C AD - Center for Reproductive Medicine, Department of Obstetrics and Gynecology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, PR China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200218 PL - England TA - Mol Cell Probes JT - Molecular and cellular probes JID - 8709751 SB - IM MH - Abortion, Spontaneous/*genetics MH - Adult MH - Aneuploidy MH - Cells, Cultured MH - Chorionic Villi/*metabolism MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence/*methods MH - Karyotyping/*methods MH - Mosaicism MH - Multiplex Polymerase Chain Reaction/*methods MH - Pregnancy MH - Prenatal Diagnosis/*methods MH - Risk Factors MH - Sensitivity and Specificity OTO - NOTNLM OT - Chorionic villi OT - FISH OT - Karyotype OT - MLPA OT - Spontaneous miscarriage COIS- Declaration of competing interest None. EDAT- 2020/02/23 06:00 MHDA- 2021/06/08 06:00 CRDT- 2020/02/22 06:00 PHST- 2019/10/18 00:00 [received] PHST- 2020/02/01 00:00 [revised] PHST- 2020/02/09 00:00 [accepted] PHST- 2020/02/23 06:00 [pubmed] PHST- 2021/06/08 06:00 [medline] PHST- 2020/02/22 06:00 [entrez] AID - S0890-8508(19)30396-2 [pii] AID - 10.1016/j.mcp.2020.101532 [doi] PST - ppublish SO - Mol Cell Probes. 2020 Jun;51:101532. doi: 10.1016/j.mcp.2020.101532. Epub 2020 Feb 18.