Duplication of Yq- and proximal Yp-arms with deletion of almost all PAR1 (including SHOX) in a young man with non-obstructive azoospermia, short stature and skeletal defects

作者：Cancemi Dino; Iannuzzi Alessandra; Perucatti Angela; Montano Luigi; Capozzi Oronzo; Spampanato Carmine; Ventruto Maria Luisa; Urciuoli Maria; Iannuzzi Leopoldo; Ventruto Valerio

来源：Journal of Applied Genetics, 2017, 58(4): 481-486.

DOI：10.1007/s13353-017-0412-7

• Y-chromosome aberration
• Yq duplication
• PAR1 deletion
• Male infertility
• Azoospermia
• Short stature
• Skeletal anomalies

Duplications of Yq arm (and AZF) seems to be tolerated by fertile males, while mutations, deletions, duplications or haploinsufficiency of SHOX can originate a wide range of phenotypes, including short stature and skeletal abnormalities. We report a case of non-obstructive azoospermia in a young man with short stature, skeletal anomalies, normal intelligence and hormonal parameters. This male showed a very singular Y-chromosome aberration, consisting of a duplication of Yq and proximal regions of Yp, with a deletion of almost all PAR1 in Yptel, including SHOX. CBA- and RBA-banding and FISH-mapping with telomeric, centromeric, AZF and SHOX probes were used. These results were confirmed by array CGH, which revealed the following karyotype constitution: arr [hg19] Xp22.33 or Yp11.32p11.31 (310,932-2,646,815 or 260,932-2,596,815) x1, Yp11.2q12 (8,641,183-59,335,913) x2. We conclude that the haploinsufficience of SHOX may be the cause of short stature and skeletal defects in the patient, while the non-obstructive azoospermia could be related to the lack of X-Y pairing during meiosis originated by the anomalous configuration of this chromosome abnormality and large deletion which occurred in Yp-PAR1.

• 出版日期2017-11