Search: WFRF:(Louhio H)
> (2006) >
Kit ligand and c-Ki...
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 ...
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
Part of subdatabase
Classification
-
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
Internet link
Find in a library
To the university's database
- By the author/editor
-
Carlsson, IB
-
Laitinen, MPE
-
Scott, JE
-
Louhio, H
-
Velentzis, L
-
Tuuri, T
-
show more...
-
Aaltonen, J
-
Ritvos, O
-
Winston, RML
-
Hovatta, O
-
show less...
- Articles in the publication
-
Reproduction (Ca ...
- By the university
-
Karolinska Institutet