Volume 8, Issue 4 (July 2006) 8, 387–392; 10.1111/j.1745-7262.2006.00137.x
In situ aneuploidy assessment in human sperm: the use of primed in situ and peptide nucleic acid-fluorescence in situ hybridization techniques
Franck Pellestor
CNRS UPR 1142, Institute of Human Genetics, Montpellier Cedex 5, France
Correspondence: Dr Franck Pellestor, CNRS UPR 1142, Institute of Human Genetics, 141 rue de la Cardonille, F-34396 Montpellier Cedex 5, France. Fax: +33-4-9961-9901. E-mail: Franck.Pellestor@igh.cnrs.fr
Received 8 March 2005; Accepted 30 December 2005
Abstract |
Both the primed in situ (PRINS) and the peptide nucleic acid-fluorescence in situ hybridization (PNA-FISH) techniques constitute alternatives to the conventional (fluorescence in situ hybridization, FISH) procedure for chromosomal investigations. The PRINS reaction is based on the use of a DNA polymerase and labeled nucleotide in an in situ primer extension reaction. Peptide nucleic acid probes are synthetic DNA analogs with uncharged polyamide backbones. The two procedures present several advantages (specificity, rapidity and discriminating ability) that make them very attractive for cytogenetic purposes. Their adaptation to human spermatozoa has allowed the development of new and fast procedures for the chromosomal screening of male gametes and has provided efficient complements to FISH for in situ assessment of aneuploidy in male gametes.
Keywords: aneuploidy, chromosomal screening, peptide nucleic acid-fluorescence in situ hybridization, primed in situ, spermatozoa
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