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2003 | 54 | 3 |
Tytuł artykułu

Angiogenic activity of porcine granulosa cells co-cultured with endothelial cells in a microcarrier-based three-dimensional fibrin gel

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Języki publikacji
EN
Abstrakty
EN
To verify the possible role played by pig granulosa cells in the ovarian angiogenic process, we have developed a reliable in vitro system which allows the evaluation of endothelial sprouting and capillary growth in three-dimensional matrices. Granulosa cells collected from porcine follicles of different size were co-cultured with porcine aortic endothelial cells (PAEC) in a microcarrier-based fibrin gel system; after 2 and 5 days of co-culture, we determined the number and length of all endothelial sprouts; moreover, these parameters were quantified only in capillary-like structures, which were defined as continuous multicellular sprouts at least 200 µm long. In granulosa cells- PAEC co-cultures we observed an increase of angiogenic activity as compared to controls (PAEC alone). Granulosa cells from follicles of different size regulate angiogenesis differently: cells from the small follicle group significantly enhanced endothelial sprouting, while those from the large follicle group favoured mainly capillary elongation. Our observations seem therefore to suggest that the development and growth of thecal vascular bed is controlled by paracrine factors of granulosa cell origin that may induce the formation of a primitive capillary plexus during the early phases of antral follicle growth, which will be remodelled in more advanced phases of follicular development.
Wydawca
-
Rocznik
Tom
54
Numer
3
Opis fizyczny
p.361-370,fig.,ref.
Twórcy
autor
  • Universita' degli Studi di Parma, Via del Taglio 8, 43100 Parma, Italy
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Bibliografia
Typ dokumentu
Bibliografia
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Identyfikator YADDA
bwmeta1.element.agro-article-50880102-f44c-44fd-97e4-c7301f823c7c
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