Cited by 30Genetic and Clinical Aspects of Sex Determination and Chromosomal AbnormalitiesReproductive Biology and FertilityOvarian function and disorders

Assessment of folliculogenesis in ovarian tissue from young patients with Turner syndrome using a murine xenograft model

Open access
Peek, Ronald, Nadesapillai, Sapthami, Thi Nguyen, Thu Yen, Vassart, Sarah, Smeets, Dominique, van de Zande, Guillaume, Camboni, Alessandra, Braat, Didi +4 more·2023·Fertility and Sterility

Abstract

OBJECTIVE: To study the impact of aneuploid granulosa and stromal cells on folliculogenesis of small ovarian follicles from patients with mosaic Turner syndrome (TS) using a murine xenograft model. DESIGN: Laboratory study. SETTING: University hospital. PATIENT(S): Ovarian cortical tissue was obtained by laparoscopic surgery from 18 patients with mosaic TS (aged 5-19 years) and 13 controls (aged 5-18 years). INTERVENTION(S): Part of each tissue fragment was used to karyotype ovarian cells in nongrafted tissue by fluorescence in situ hybridization. The remaining tissue was xenografted to severe combined immunodeficient mice for 5 months. Grafted tissue was analyzed for aneuploidy, and follicle density and morphology were determined. Expressions of proliferating cell nuclear antigen and anti-Müllerian hormone were investigated by immunohistochemistry. MAIN OUTCOME MEASURE(S): The impact of aneuploid granulosa and stromal cells on folliculogenesis. Fluorescence in situ hybridization of ovarian tissue before grafting was performed to determine the level of aneuploidy in stromal cells and oocytes and granulosa of small follicles. After xenografting, the level of aneuploidy of the newly formed layers of granulosa cells was again determined in secondary and antral follicles. RESULT(S): Follicle density in ovarian tissue from patients with TS was significantly lower than in controls before grafting. Fluorescence in situ hybridization analysis confirmed that 101 of 104 oocytes from nongrafted tissue of patients with TS showed normal X chromosome content, whereas granulosa and stromal cells were mainly 45,X. Fragments from 12 patients with TS contained follicles at all stages after xenografting, including secondary and antral follicles. Follicle density in patients with TS and controls decreased significantly after grafting. Moreover, a shift from high to low proportions of 45,X granulosa cells was observed during folliculogenesis. Expression of proliferating cell nuclear antigen in follicles from patients with TS increased significantly during grafting. Secretion of anti-Müllerian hormone was impaired before grafting in peripubertal/postpubertal girls with TS, but recovered after grafting. CONCLUSION(S): Our study showed that small follicles from patients with mosaic TS undergoes folliculogenesis, despite the presence of aneuploid granulosa and stromal cells. Ovarian tissue cryopreservation could therefore be a valid option to preserve fertility in young patients with mosaic TS if sufficient numbers of follicles are present, thus preferably before the age of 12.

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Crossref · 10.1016/j.fertnstert.2023.04.008

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  • Those with monosomy X could still be fertile enough to undergo ovarian stimulation successfully or become pregnant spontaneously, as a wide variation is seen between karyotype in peripheral cells and ovarian cells.

    “It is important to keep in mind that those with monosomy X could still be fertile enough to undergo ovarian stimulation successfully or become pregnant spontaneously, as a wide variation is seen between karyotype in peripheral cells and ovarian cells.576,609,610”
  • Despite the presence of a large content of aneuploid granulosa and stromal cells, primordial follicles underwent normal follicular development until antral stages.

    “Despite the presence of a large content of aneuploid granulosa and stromal cells, primordial follicles underwent normal follicular development until antral stages.”
  • Aberrant follicle morphology of up to 30%-67% was observed in TS ovaries.

    “Additionally, an aberrant follicle morphology of up to 30%-67% was observed in TS ovaries.579,609”
  • Prepubertal girls with mosaic TS could have a more promising outcome after ovarian tissue transplantation (OTT) than pubertal girls.

    “This supports the theory that prepubertal girls with mosaic TS could have a more promising outcome after ovarian tissue transplantation (OTT) than pubertal girls.609”
  • The follicle density of xenografts from ovaries of prepubertal girls with TS was significantly higher than that of pubertal girls with TS and was comparable to that of age-matched controls.

    “The follicle density of xenografts from ovaries of prepubertal girls with TS was significantly higher than that of pubertal girls with TS and was comparable to that of age-matched controls.”

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Authors
Peek, R., Nadesapillai, S., Thi Nguyen, T. Y., Vassart, S., Smeets, D., van de Zande, G., Camboni, A., Braat, D., van der Velden, J., Donnez, J., Fleischer, K., & Dolmans, M.-M.
Affiliations
  • Radboud University Medical Center (NL)
  • UCLouvain (BE)
  • Cliniques Universitaires Saint-Luc (BE)
Corresponding author
Dolmans, Marie-Madeleine
Venue
Fertility and Sterility
Publisher
Elsevier BV
Published
2023-08
Volume
120
Issue
2
Pages
371-381
ISSN
0015-0282 (ISSN-L)
OpenAlex
W4365452241
Cited by
30
References
38
Citations by year
2026: 6 · 2025: 11 · 2024: 9 · 2023: 4
FWCI
4.98
Type
journal article
Language
en
Open access
Locations
  • Fertility and Sterility (publishedVersion, cc-by)
  • SSRN Electronic Journal (acceptedVersion)
  • PubMed (publishedVersion)
  • Digital Access to Libraries (Université catholique de Louvain (UCL), l'Université de Namur (UNamur) and the Université Saint-Louis (USL-B)) (submittedVersion, other-oa)
  • Radboud Repository (Radboud University) (submittedVersion)
Funders
  • Foundation Against Cancer (2018-042)
  • Saint-Luc Foundation
  • Merck Pharmaceuticals (A16-1395)
  • Fondation contre le Cancer
  • EMD Serono
  • Fonds national suisse de la recherche scientifique
  • Fonds De La Recherche Scientifique - FNRS (30443682, 5/4/150/5)
  • Ferring Pharmaceuticals
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Reproductive Biology and Fertility
  • Health Sciences › Medicine › Reproductive Medicine › Ovarian function and disorders
Keywords
Turner syndrome, mosaic Turner syndrome, folliculogenesis, granulosa cells, stromal cells, 45,X, follicle density, anti-Müllerian hormone, proliferating cell nuclear antigen, oocyte aneuploidy, ovarian reserve, peripubertal girls, antral follicles
MeSH terms
Aneuploidy, Animals, Female, Humans, Turner Syndrome, In Situ Hybridization, Fluorescence, Proliferating Cell Nuclear Antigen, Mice, Anti-Mullerian Hormone, Heterografts

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