PMID- 32588489 OWN - NLM STAT- MEDLINE DCOM- 20210714 LR - 20210714 IS - 1098-2825 (Electronic) IS - 0887-8013 (Print) IS - 0887-8013 (Linking) VI - 34 IP - 9 DP - 2020 Sep TI - Comparison between paramagnetic and CD71 magnetic activated cell sorting of fetal nucleated red blood cells from the maternal blood. PG - e23420 LID - 10.1002/jcla.23420 [doi] LID - e23420 AB - BACKGROUND: Fetal nucleated red blood cells (NRBC) from maternal circulation are rare events but can be enriched and used to evaluate the genetics of the fetus. We compared two simplified selection methods of the fetal cells from the maternal blood. METHODS: We isolated fetal cells from maternal blood through double-density gradient centrifugation followed either by magnetic cell selection, based on the paramagnetic proprieties of the NRBC hemoglobin, converted to methemoglobin, or by a positive magnetic-activated cell sorting (MACS) enrichment, using anti-CD71 monoclonal antibodies. Finally, the cells were identified through fluorescence in situ hybridization (FISH) with specific chromosome X and Y probes. RESULTS: We processed 10 mL of peripheral blood samples from 27 pregnant women with singleton normal male fetuses. Hemoglobin-based enrichment isolated significantly more NRBCs: 29.7 x 10(4) cells than anti-CD71 MACS: 10.1 x 10(4) cells (P < .001). The FISH analysis found at least one XY cell in 81.5% and 61.5% of cases, respectively, for paramagnetic and anti-CD71 selection. Also, the average number of XY cells identified through paramagnetic selection was 5.09 +/- 2.5, significantly higher than those observed through CD71 sorting: 3.38 +/- 1.7 cells (average +/- SE) (P = .03). CONCLUSION: The combination of density gradient centrifugation with paramagnetic selection has the advantage of simplicity and achieves a minimal manipulation and treatment of cells. It yields an increased number of NRBCs and FISH confirmed fetal cells, compared to the anti-CD71 sorting. CI - (c) 2020 The Authors. Journal of Clinical Laboratory Analysis published by Wiley Periodicals LLC. FAU - Nemescu, Dragos AU - Nemescu D AUID- ORCID: 0000-0003-2345-1077 AD - Grigore T Popa University of Medicine and Pharmacy, Iasi, Romania. FAU - Constantinescu, Daniela AU - Constantinescu D AUID- ORCID: 0000-0003-0732-3745 AD - Grigore T Popa University of Medicine and Pharmacy, Iasi, Romania. FAU - Gorduza, Vlad AU - Gorduza V AUID- ORCID: 0000-0002-6776-4844 AD - Grigore T Popa University of Medicine and Pharmacy, Iasi, Romania. FAU - Carauleanu, Alexandru AU - Carauleanu A AUID- ORCID: 0000-0001-9112-7039 AD - Grigore T Popa University of Medicine and Pharmacy, Iasi, Romania. FAU - Caba, Lavinia AU - Caba L AUID- ORCID: 0000-0001-6327-4461 AD - Grigore T Popa University of Medicine and Pharmacy, Iasi, Romania. FAU - Navolan, Dan Bogdan AU - Navolan DB AUID- ORCID: 0000-0002-3263-1769 AD - Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. LA - eng GR - 1196/National Program for Research Development and Innovation II/ PT - Comparative Study PT - Journal Article DEP - 20200625 PL - United States TA - J Clin Lab Anal JT - Journal of clinical laboratory analysis JID - 8801384 RN - 0 (Antigens, CD) RN - 0 (CD71 antigen) RN - 0 (Receptors, Transferrin) SB - IM MH - Adult MH - Antigens, CD/*metabolism MH - Cell Separation/*methods MH - Erythroblasts/metabolism/*pathology MH - Female MH - Fetal Blood/*cytology MH - Fetus/*metabolism/pathology MH - Gestational Age MH - Humans MH - Immunomagnetic Separation/*methods MH - Male MH - Maternal-Fetal Exchange MH - Pregnancy MH - Prenatal Care MH - Prenatal Diagnosis/*methods MH - Receptors, Transferrin/*metabolism PMC - PMC7521243 OTO - NOTNLM OT - CD71 OT - fluorescent in situ hybridization OT - magnetic-activated cell sorting OT - nucleated red blood cells OT - prenatal diagnosis EDAT- 2020/06/27 06:00 MHDA- 2021/07/15 06:00 PMCR- 2020/06/25 CRDT- 2020/06/27 06:00 PHST- 2020/02/22 00:00 [received] PHST- 2020/04/29 00:00 [revised] PHST- 2020/05/18 00:00 [accepted] PHST- 2020/06/27 06:00 [pubmed] PHST- 2021/07/15 06:00 [medline] PHST- 2020/06/27 06:00 [entrez] PHST- 2020/06/25 00:00 [pmc-release] AID - JCLA23420 [pii] AID - 10.1002/jcla.23420 [doi] PST - ppublish SO - J Clin Lab Anal. 2020 Sep;34(9):e23420. doi: 10.1002/jcla.23420. Epub 2020 Jun 25.