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  • Carlsson, IB (author)

Kit ligand and c-Kit are expressed during early human ovarian follicular development and their interaction is required for the survival of follicles in long-term culture

  • Article/chapterEnglish2006

Publisher, publication year, extent ...

  • Bioscientifica,2006

Numbers

  • LIBRIS-ID:oai:prod.swepub.kib.ki.se:1946186
  • http://kipublications.ki.se/Default.aspx?queryparsed=id:1946186URI
  • https://doi.org/10.1530/rep.1.00868DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • The receptor tyrosine c-Kit and its cognate ligand, c-Kit ligand (KL, stem cell factor, SCF), are involved in ovarian follicular development in several animal species. We studied the expression of KL and c-Kit usingin situhybridization and immunohistochemistry in donated human ovarian cortical tissue. The KL transcripts were expressed in granulosa cells of primary follicles, whereas the expression of c-Kit was confined to the oocyte and granulosa cells in primary and secondary follicles. We employed an ovarian organ culture using firstly serum-containing and then serum-free medium to study the effects of KL and an anti-c-Kit antibody, ACK2, on the development and survival of ovarian folliclesin vitro. Culture of ovarian cortical slices for 7 days resulted in a 37% increase in the number of primary follicles and a 6% increase in secondary follicles. The proportion of viable follicles decreased in all cultures. The addition of KL (1, 10 and 100 ng/ml) into the culture media did not affect the developmental stages of the follicles or the proportion of atretic follicles. Inclusion of ACK2 (800 ng/ml) in the culture medium significantly increased the proportion of atretic follicles on days 7 (49 vs 28% in control cultures) and 14 (62 vs 38%) of culture. In conclusion, c-Kit and KL are expressed in human ovaries during follicular development. Blocking the c-Kit receptor induces follicular atresia. The KL/c-Kit signaling system is likely to control the survival of human ovarian follicles during early follicular development.

Added entries (persons, corporate bodies, meetings, titles ...)

  • Laitinen, MPE (author)
  • Scott, JE (author)
  • Louhio, H (author)
  • Velentzis, L (author)
  • Tuuri, T (author)
  • Aaltonen, J (author)
  • Ritvos, O (author)
  • Winston, RML (author)
  • Hovatta, OKarolinska Institutet (author)
  • Karolinska Institutet (creator_code:org_t)

Related titles

  • In:Reproduction (Cambridge, England): Bioscientifica131:4, s. 641-6491470-16261741-7899

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