PMID- 28678425 OWN - NLM STAT- MEDLINE DCOM- 20180523 LR - 20220223 IS - 1552-4930 (Electronic) IS - 1552-4922 (Linking) VI - 91 IP - 9 DP - 2017 Sep TI - Semi-automated scoring of triple-probe FISH in human sperm using confocal microscopy. PG - 859-866 LID - 10.1002/cyto.a.23126 [doi] AB - Structural and numerical sperm chromosomal aberrations result from abnormal meiosis and are directly linked to infertility. Any live births that arise from aneuploid conceptuses can result in syndromes such as Kleinfelter, Turners, XYY and Edwards. Multi-probe fluorescence in situ hybridization (FISH) is commonly used to study sperm aneuploidy, however manual FISH scoring in sperm samples is labor-intensive and introduces errors. Automated scoring methods are continuously evolving. One challenging aspect for optimizing automated sperm FISH scoring has been the overlap in excitation and emission of the fluorescent probes used to enumerate the chromosomes of interest. Our objective was to demonstrate the feasibility of combining confocal microscopy and spectral imaging with high-throughput methods for accurately measuring sperm aneuploidy. Our approach used confocal microscopy to analyze numerical chromosomal abnormalities in human sperm using enhanced slide preparation and rigorous semi-automated scoring methods. FISH for chromosomes X, Y, and 18 was conducted to determine sex chromosome disomy in sperm nuclei. Application of online spectral linear unmixing was used for effective separation of four fluorochromes while decreasing data acquisition time. Semi-automated image processing, segmentation, classification, and scoring were performed on 10 slides using custom image processing and analysis software and results were compared with manual methods. No significant differences in disomy frequencies were seen between the semi automated and manual methods. Samples treated with pepsin were observed to have reduced background autofluorescence and more uniform distribution of cells. These results demonstrate that semi-automated methods using spectral imaging on a confocal platform are a feasible approach for analyzing numerical chromosomal aberrations in sperm, and are comparable to manual methods. (c) 2017 International Society for Advancement of Cytometry. CI - (c) 2017 International Society for Advancement of Cytometry. FAU - Branch, Francesca AU - Branch F AD - Department of Environmental and Occupational Health, Milken Institute School of Public Health, George Washington University, Washington, DC. FAU - Nguyen, GiaLinh AU - Nguyen G AD - Department of Environmental and Occupational Health, Milken Institute School of Public Health, George Washington University, Washington, DC. FAU - Porter, Nicholas AU - Porter N AD - Department of Environmental and Occupational Health, Milken Institute School of Public Health, George Washington University, Washington, DC. FAU - Young, Heather A AU - Young HA AD - Department of Epidemiology and Biostatistics, Milken Institute School of Public Health, George Washington University, Washington, DC. FAU - Martenies, Sheena E AU - Martenies SE AD - Department of Environmental and Occupational Health, Milken Institute School of Public Health, George Washington University, Washington, DC. FAU - McCray, Nathan AU - McCray N AD - Department of Environmental and Occupational Health, Milken Institute School of Public Health, George Washington University, Washington, DC. FAU - Deloid, Glen AU - Deloid G AD - Department of Environmental Health Harvard School of Public Health, Boston, Massachusetts. FAU - Popratiloff, Anastas AU - Popratiloff A AD - Nanofabrication and Imaging Center, George Washington University, Washington, DC. FAU - Perry, Melissa J AU - Perry MJ AD - Department of Environmental and Occupational Health, Milken Institute School of Public Health, George Washington University, Washington, DC. LA - eng GR - S10 RR025565/RR/NCRR NIH HHS/United States GR - R01 ES017457/ES/NIEHS NIH HHS/United States GR - S10 OD010710/OD/NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20170705 PL - United States TA - Cytometry A JT - Cytometry. Part A : the journal of the International Society for Analytical Cytology JID - 101235694 SB - IM MH - Adult MH - Aneuploidy MH - Cell Nucleus/genetics MH - Chromosome Aberrations MH - Humans MH - In Situ Hybridization, Fluorescence/*methods MH - Male MH - Microscopy, Confocal/methods MH - Middle Aged MH - Sex Chromosomes/*genetics MH - Spermatozoa/*physiology OTO - NOTNLM OT - Fluorescence in situ hybridization OT - aneuploidy OT - chromosomal abnormality OT - confocal microscopy OT - human spermatozoa OT - sex chromosome disomy OT - spectral imaging EDAT- 2017/07/06 06:00 MHDA- 2018/05/24 06:00 CRDT- 2017/07/06 06:00 PHST- 2016/08/26 00:00 [received] PHST- 2017/04/06 00:00 [revised] PHST- 2017/04/13 00:00 [accepted] PHST- 2017/07/06 06:00 [pubmed] PHST- 2018/05/24 06:00 [medline] PHST- 2017/07/06 06:00 [entrez] AID - 10.1002/cyto.a.23126 [doi] PST - ppublish SO - Cytometry A. 2017 Sep;91(9):859-866. doi: 10.1002/cyto.a.23126. Epub 2017 Jul 5.