PMID- 36675683 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230308 IS - 2075-4426 (Print) IS - 2075-4426 (Electronic) IS - 2075-4426 (Linking) VI - 13 IP - 1 DP - 2022 Dec 22 TI - Advanced Strategy of Trophoblasts Retrieval and Isolation from the Cervix (TRIC): Comparison of Two HLA-G Antibodies for Immunomagnetic Isolation of Trophoblasts. LID - 10.3390/jpm13010022 [doi] LID - 22 AB - Trophoblasts retrieval and isolation from the cervix (TRIC) is a non-invasive method which enables analysis of fetal genetic information from the extravillous trophoblast cells (EVTs). The aim of this study was to compare the efficacy of the HLA-G antibodies-G233 and 4H84-in isolating EVT cells and provide an optimized protocol of TRIC. We analyzed EVTs from 23 pregnant women in between 5 to 20 weeks of gestation who underwent invasive prenatal testing. Two HLA-G antibodies-G233 and 4H84-were used in a subgroup of 11 and 12 samples for immunomagnetic isolation. Cells with beta-hCG expression were counted to compare the rate of isolated trophoblast cells. The rate of beta-hCG positive cells was significantly different between the G233 and the 4H84 by immunefluorescence microscopy (p < 0.001). The percentage of beta-hCG expressing cells in G233 and 4H84 groups were 62.4 +/- 8.24% and 82.6 +/- 7.1%, respectively (p < 0.001). The average fetal cell positive rate was 14.1 +/- 3.78 in the G233 group while it was 25.8 +/- 3.9 in the 4H84 group by fluorescence in situ hybridization (FISH) (p = 0.011). Immunoisolation of trophoblast cells using 4H84 HLA-G antibody was more efficient in capturing EVT cells than using G233 for successful clinical application of TRIC. FAU - Hong, Kirim AU - Hong K AUID- ORCID: 0000-0001-8258-9696 AD - Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University, Seoul 06125, Republic of Korea. FAU - Jang, Hee Yeon AU - Jang HY AUID- ORCID: 0000-0003-4127-4748 AD - Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13488, Republic of Korea. FAU - Shim, Sung Han AU - Shim SH AD - Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13488, Republic of Korea. FAU - Cho, Hee Young AU - Cho HY AUID- ORCID: 0000-0001-7064-5056 AD - Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University, Seoul 06125, Republic of Korea. FAU - Cha, Dong Hyun AU - Cha DH AUID- ORCID: 0000-0003-0722-1714 AD - Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University, Seoul 06125, Republic of Korea. LA - eng GR - HI21C1552/Public health technology research fund by national ministry of health and welfare./ PT - Journal Article DEP - 20221222 PL - Switzerland TA - J Pers Med JT - Journal of personalized medicine JID - 101602269 PMC - PMC9865439 OTO - NOTNLM OT - HLA-G antibody OT - extravillous trophoblast cells OT - immunoisolation OT - trophoblasts retrieval and isolation from the cervix OT - beta-hCG COIS- The authors declare no conflict of interest. EDAT- 2023/01/22 06:00 MHDA- 2023/01/22 06:01 PMCR- 2022/12/22 CRDT- 2023/01/21 01:32 PHST- 2022/10/21 00:00 [received] PHST- 2022/12/01 00:00 [revised] PHST- 2022/12/21 00:00 [accepted] PHST- 2023/01/21 01:32 [entrez] PHST- 2023/01/22 06:00 [pubmed] PHST- 2023/01/22 06:01 [medline] PHST- 2022/12/22 00:00 [pmc-release] AID - jpm13010022 [pii] AID - jpm-13-00022 [pii] AID - 10.3390/jpm13010022 [doi] PST - epublish SO - J Pers Med. 2022 Dec 22;13(1):22. doi: 10.3390/jpm13010022.