Can pubertal boys with Klinefelter syndrome benefit from spermatogonial stem cell banking?

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Abstract

Abstract

BACKGROUNDAlthough early development of testes appears normal in boys with Klinefelter syndrome (KS), spermatogonial stem cell (SSC) depletion occurs in mid puberty, leading to infertility. Cryopreservation of SSCs prior to stem cell loss is an option that is currently offered to boys who have to undergo gonadotoxic treatments. This study aimed to explore the possibility of preserving SSCs in pubertal KS adolescents by testicular tissue banking.METHODSA retrospective study was conducted in seven non-mosaic 47,XXY adolescents, aged 13-16 years, who were invited for an experimental testicular tissue banking programme during their follow-up at the Paediatric Endocrinology Department of the UZ Brussel between 2009 and 2011. Paraffin-embedded testicular tissue was sectioned and stained with haematoxylin-eosin, and immunostainings were performed for Mage-A4, anti-Mullerian hormone, Inhibin ? and steroidogenic acute regulatory protein. The presence of spermatogenesis and/or spermatogonia was evaluated.RESULTSMassive fibrosis and hyalinization was observed in all but one KS patients. Although spermatogonia were seen in five patients, spermatogonia were only present in tubules showing normal architecture in the youngest patient who also had normal follicle-stimulating hormone and inhibin B concentrations.CONCLUSIONSTesticular tissue cryopreservation in KS adolescents should be recommended as soon as possible, probably before hormonal changes of failing Sertoli cell function are detected.
Original languageEnglish
Pages (from-to)323-330
Number of pages8
JournalHuman Reproduction
Volume27
Publication statusPublished - Feb 2012

Keywords

  • fertility preservation
  • immunohistochemistry
  • Klinefelter syndrome
  • spermatogonial stem cells

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