Immunohistochemical localization of growth factors after cryopreservation and 3 weeks' xenotransplantation of human ovarian tissue

Fertility and Sterility
Anu DavidChristiani Amorim

Abstract

To compare early follicular growth after fresh and frozen-thawed human ovarian tissue xenografting and to investigate whether expression of c-kit, kit ligand (KL), and growth differentiation factor-9 (GDF-9) is maintained after freezing and xenografting of human ovarian tissue. Prospective experimental study. Gynecology research unit in a university hospital. Ten nude (Swiss nu/nu) 6-week-old female mice. The ovarian biopsy samples were obtained from six women, aged 20 to 30 years. Fresh and frozen-thawed ovarian fragments intraperitoneally grafted into nude mice for 3 weeks. Histologic analysis and immunohistochemical evaluation of c-kit, KL, and GDF-9 expression before and after grafting. The integrity and proportion of growing follicles increased similarly in both fresh (64%) and frozen-thawed (59%) xenografts compared with non-grafted tissue (fresh: 40%; frozen-thawed: 21%). Both C-kit and KL staining were detected in the oocytes and granulosa cells of preantral follicles, and GDF-9 expression was observed in the oocytes of preantral follicles in all groups. Freezing does not appear to have a major impact on early follicular growth after transplantation. This study shows, for the first time, expression of c-kit, KL, and GDF...Continue Reading

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Citations

Sep 26, 2013·Journal of Assisted Reproduction and Genetics·Lin WangJian Xu
Oct 30, 2013·Nature Reviews. Endocrinology·Jacques Donnez, Marie-Madeleine Dolmans
Apr 18, 2013·Human Reproduction·Christiani A AmorimMarie-Madeleine Dolmans
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Feb 12, 2021·Current Breast Cancer Reports·Andrea S K Jones, Ariella Shikanov
Jul 25, 2021·International Journal of Molecular Sciences·Seongmin KimTak Kim

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