PMID- 11424143 OWN - NLM STAT- MEDLINE DCOM- 20010726 LR - 20190906 IS - 0148-7299 (Print) IS - 0148-7299 (Linking) VI - 101 IP - 3 DP - 2001 Jul 1 TI - Noninvasive prenatal diagnosis of chromosomal aneuploidies by isolation and analysis of fetal cells from maternal blood. PG - 262-7 AB - The isolation and analysis of nucleated fetal cells (NFCs) from maternal blood may represent a new approach to noninvasive prenatal diagnosis. Although promising, these techniques require highly accurate separation of NFCs from nucleated cells of maternal origin; the two major problems limiting these techniques are the relative rarity of fetal cells in maternal blood and the need to establish their fetal origin. We now report a novel procedure that has allowed accurate separation of NFCs from maternal cells. The technique reported involves direct micromanipulator isolation of histochemically identified hemoglobin F-positive nucleated cells to obtain fetal nucleated red blood cells (FNRBCs) of high yield and purity. Using this technique, followed by cell-by-cell multicolor fluorescence in situ hybridization (FISH) analysis of purified FNRBCs, we were able to detect some of the most common human aneuploidies (including Down syndrome, Klinefelter syndrome, and trisomy 13) in 33 pregnant women referred for amniocentesis. The procedure used, which can be completed in <72 hrs, produced complete concordance with the results of amniocentesis. We also confirm findings of prior studies suggesting that the number of FNRBCs in maternal circulation is remarkably higher in abnormal pregnancies than in normal pregnancies, especially in women carrying a fetus with trisomy 21. CI - Copyright 2001 Wiley-Liss, Inc. FAU - Parano, E AU - Parano E AD - Institute of Bioimaging and Physiopathology of the Central Nervous System (IBFSNC), The National Research Council of Italy (CNR), Catania, Italy. parano@mbox.unict.it FAU - Falcidia, E AU - Falcidia E FAU - Grillo, A AU - Grillo A FAU - Pavone, P AU - Pavone P FAU - Cutuli, N AU - Cutuli N FAU - Takabayashi, H AU - Takabayashi H FAU - Trifiletti, R R AU - Trifiletti RR FAU - Gilliam, C T AU - Gilliam CT LA - eng PT - Journal Article PL - United States TA - Am J Med Genet JT - American journal of medical genetics JID - 7708900 RN - 9034-63-3 (Fetal Hemoglobin) SB - IM MH - *Aneuploidy MH - Erythrocytes/chemistry/metabolism MH - Female MH - Fetal Hemoglobin/analysis MH - Fetus/cytology/*metabolism MH - Humans MH - In Situ Hybridization, Fluorescence MH - Pregnancy/*blood MH - Prenatal Diagnosis/*methods EDAT- 2001/06/26 10:00 MHDA- 2001/07/28 10:01 CRDT- 2001/06/26 10:00 PHST- 2001/06/26 10:00 [pubmed] PHST- 2001/07/28 10:01 [medline] PHST- 2001/06/26 10:00 [entrez] AID - 10.1002/ajmg.1350 [pii] AID - 10.1002/ajmg.1350 [doi] PST - ppublish SO - Am J Med Genet. 2001 Jul 1;101(3):262-7. doi: 10.1002/ajmg.1350.