Significant Down-Regulation of "Biological Adhesion" Genes in Porcine Oocytes after IVM.
Proper maturation of the mammalian oocyte is a compound processes determining successful monospermic fertilization, however the number of fully mature porcine oocytes is still unsatisfactory. Since oocytes' maturation and fertilization involve cellular adhesion and membranous contact, the aim was to investigate cell adhesion ontology group in porcine oocytes. The oocytes were collected from ovaries of 45 pubertal crossbred Landrace gilts and subjected to two BCB tests. After the first test, only granulosa cell-free BCB⁺ oocytes were directly exposed to microarray assays and RT-qPCR ("before IVM" group), or first in vitro matured and then if classified as BCB⁺ passed to molecular analyses ("after IVM" group). As a result, we have discovered substantial down-regulation of genes involved in adhesion processes, such as: organization of actin cytoskeleton, migration, proliferation, differentiation, apoptosis, survival or angiogenesis in porcine oocytes after IVM, compared to oocytes analyzed before IVM. In conclusion, we found that biological adhesion may be recognized as the process involved in porcine oocytes' successful IVM. Down-regulation of genes included in this ontology group in immature oocytes after IVM points to their unique function in oocyte's achievement of fully mature stages. Thus, results indicated new molecular markers involved in porcine oocyte IVM, displaying essential roles in biological adhesion processes.
['Budna|Joanna|J|', 'Celichowski|Piotr|P|', 'Bryja|Artur|A|', 'Dyszkiewicz-Konwińska|Marta|M|', 'Jeseta|Michal|M|', 'Bukowska|Dorota|D|', 'Antosik|Paweł|P|', 'Brüssow|Klaus Peter|KP|', 'Bruska|Małgorzata|M|', 'Nowicki|Michał|M|', 'Zabel|Maciej|M|0000-0003-2004-0010', 'Kempisty|Bartosz|B|']
D000818:Animals D017209:Apoptosis D002448:Cell Adhesion D002454:Cell Differentiation D049109:Cell Proliferation D015536:Down-Regulation D005260:Female D053263:Gene Regulatory Networks D059471:In Vitro Oocyte Maturation Techniques D009865:Oocytes D009866:Oogenesis D013552:Swine
oocytes gamete biology in vitro maturation (IVM) molecular biology pig