PMID- 10685080 OWN - NLM STAT- MEDLINE DCOM- 20000405 LR - 20171116 IS - 0196-4763 (Print) IS - 0196-4763 (Linking) VI - 39 IP - 3 DP - 2000 Mar 1 TI - Fetal nucleated erythrocyte recovery: fluorescence activated cell sorting-based positive selection using anti-gamma globin versus magnetic activated cell sorting using anti-CD45 depletion and anti-gamma globin positive selection. PG - 224-30 AB - BACKGROUND: Fluorescence activated cell sorting (FACS)-based anti-gamma (gamma) positive selection and magnetic activated cell sorting (MACS)-based anti-CD45 depletion followed by anti-gamma positive staining have been two of the most frequently used methods to isolate fetal cells from maternal blood. To date, there has been no direct comparison of fetal cell recovery by these two methods. This study was designed to address this issue. METHODS: Fluorescence in situ hybridization (FISH) was performed on nucleated anti-gamma positive cells using X and Y probes. Twenty-four maternal blood samples were obtained immediately after elective termination of pregnancy to ensure a detectable number of fetal cells. RESULTS: The yield and purity of fetal nucleated erythrocytes (FNRBCs) was statistically higher in FACS sorted samples (P < 0.01). The specificity of staining for FNRBCs was statistically higher in MACS sorted samples (P < 0.01). CONCLUSIONS: The data from this study demonstrate that both techniques have benefits and limitations. FACS has the advantage of having higher yield, higher purity, higher FISH efficiency and ease in microscope analysis, and MACS has the advantage of having higher specificity and less cell loss during FISH. CI - Copyright 2000 Wiley-Liss, Inc. FAU - Wang, J Y AU - Wang JY AD - Division of Genetics, Department of Pediatrics, New England Medical Center, Tufts University School of Medicine, Boston, Massachusetts 02111, USA. FAU - Zhen, D K AU - Zhen DK FAU - Falco, V M AU - Falco VM FAU - Farina, A AU - Farina A FAU - Zheng, Y L AU - Zheng YL FAU - Delli-Bovi, L C AU - Delli-Bovi LC FAU - Bianchi, D W AU - Bianchi DW LA - eng GR - N01-HD-43204/HD/NICHD NIH HHS/United States GR - P01-HD-18658/HD/NICHD NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Cytometry JT - Cytometry JID - 8102328 RN - 0 (Antigens, CD) RN - 9004-22-2 (Globins) RN - EC 3.1.3.48 (Leukocyte Common Antigens) SB - IM MH - Antigens, CD/analysis MH - Cell Nucleus/ultrastructure MH - Cell Separation/methods MH - Embryo, Mammalian MH - Erythrocytes/*cytology/ultrastructure MH - Female MH - Fetal Blood/cytology MH - Fetus MH - Flow Cytometry/*methods MH - Gestational Age MH - Globins/*analysis MH - Humans MH - Immunomagnetic Separation/methods MH - In Situ Hybridization, Fluorescence MH - Leukocyte Common Antigens/analysis MH - Pregnancy EDAT- 2000/02/24 00:00 MHDA- 2000/02/24 00:01 CRDT- 2000/02/24 00:00 PHST- 2000/02/24 00:00 [pubmed] PHST- 2000/02/24 00:01 [medline] PHST- 2000/02/24 00:00 [entrez] AID - 10.1002/(SICI)1097-0320(20000301)39:3<224::AID-CYTO8>3.0.CO;2-J [pii] PST - ppublish SO - Cytometry. 2000 Mar 1;39(3):224-30.