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Clinical Chemistry and Laboratory Medicine (CCLM)

Published in Association with the European Federation of Clinical Chemistry and Laboratory Medicine (EFLM)

Editor-in-Chief: Plebani, Mario

Ed. by Gillery, Philippe / Lackner, Karl J. / Lippi, Giuseppe / Melichar, Bohuslav / Payne, Deborah A. / Schlattmann, Peter / Tate, Jillian R.

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Application of proteomics to prenatal screening and diagnosis for aneuploidies

Chan-Kyung J. Cho1, 2 / 1–3, ,

1Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada

2Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, ON, Canada

3Department of Clinical Biochemistry, University Health Network, Toronto, ON, Canada

Corresponding author: Dr. Eleftherios P. Diamandis, Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, 6th Floor, Room 6-201, Box 32, 60 Murray Street, Toronto, ON M57 3L9, Canada Phone: +1 416-586-8443, Fax: +1 416-619-5521

Citation Information: Clinical Chemistry and Laboratory Medicine. Volume 49, Issue 1, Pages 33–41, ISSN (Online) 1437-4331, ISSN (Print) 1434-6621, DOI: 10.1515/CCLM.2011.002, October 2010

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Current screening for fetal aneuploidies relies on biochemical and ultrasound measurements, and the sensitivity and specificity needs to be improved to reduce the number of pregnant women subjected to invasive diagnostic procedures, such as amniocentesis. Proteomic technologies enable new strategies for discovering biomarkers from complex biological fluids in a high-throughput and sensitive manner. Since mass spectrometry-based techniques allow for both qualitative and quantitative analysis of a given proteome, they have been widely used to resolve and compare the proteome of maternal plasma, serum, urine, cervical-vaginal fluid, and amniotic fluid. Comparisons of proteomes of normal fluids with those from aneuploidy pregnancies have revealed a host of candidate markers that still need to be verified. In parallel with proteomics, there is interest in other emerging techniques, such as RNA-SNP analysis or quantitation of fetal DNA by shotgun sequencing. Although these genomic techniques hold much promise, discovery of additional markers via quantitative proteomic comparisons could drastically improve current conventional screening at reasonable cost. Proteomics-based biomarker discovery is applicable to detection of not just aneuploidies, but also other pregnancy-related diseases.

Keywords: aneuploidy; biomarker discovery; Down syndrome; mass spectrometry; prenatal screening; proteomics

Citing Articles

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Paul J. Yong, Deborah E. McFadden, and Wendy P. Robinson
Journal of Obstetrics and Gynaecology Canada, 2012, Volume 34, Number 12, Page 1141
Eduardo Martínez-Morillo, Chan-Kyung J. Cho, Andrei P. Drabovich, Julie L.V. Shaw, Antoninus Soosaipillai, and Eleftherios P. Diamandis
Journal of Proteome Research, 2012, Volume 11, Number 7, Page 3880
Wendy Rodenburg, Johan H. Reimerink, Sandra Imholz, Gert-Jan Godeke, Jeroen L.A. Pennings, Peter C.J.I. Schielen, Maria P.H. Koster, and Annemieke de Vries
Clinical Chemistry and Laboratory Medicine (CCLM), 2012, Volume 50, Number 2
Chan-Kyung J. Cho, Andrei P. Drabovich, Ihor Batruch, and Eleftherios P. Diamandis
Journal of Proteomics, 2011, Volume 74, Number 10, Page 2052

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