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Effect of conditioned medium of mesenchymal stem cells on the in vitro maturation and subsequent development of mouse oocyte 56
Ling,B.; Feng,D.Q.; Zhou,Y.; Gao,T.; Wei,H.M.; Tian,Z.G..
Mesenchymal stem cells (MSCs) secrete a variety of cytokines and growth factors in addition to self-renewal and multiple forms of differentiation. Some of these secreted bioactive factors could improve meiotic maturation in vitro and subsequent embryo developmental potential. The aim of the present study was to determine whether in vitro maturation (IVM) of mouse oocyte with or without cumulus cells could be improved by contact with conditioned medium (CM) of MSCs as well as the efficiency of CM to support follicular growth and oocyte maturation in the ovarian organ of mice cultured on soft agar. The developmental potential of matured oocyte was assessed by blastocyst formation after in vitro fertilization (IVF). Germinal vesicle stage oocytes with or...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mesenchymal stem cells; In vitro maturation; Follicular development; Mouse oocyte development.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008001100006
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Effects of the conditioned medium of mesenchymal stem cells on mouse oocyte activation and development 56
Feng,D.Q.; Zhou,Y.; Ling,B.; Gao,T.; Shi,Y.Y.; Wei,H.M.; Tian,Z.G..
Mesenchymal stem cells (MSCs) have been reported to secrete a variety of cytokines and growth factors acting as trophic suppliers, but little is known regarding the effects of conditioned medium (CM) of MSCs isolated from femurs and tibias of mouse on the artificial activation of mouse oocytes and on the developmental competence of the parthenotes. In the current study, we investigated the effect of CM on the events of mouse oocyte activation, namely oscillations of cytosolic calcium concentration ([Ca²+]i), meiosis resumption, pronucleus formation, and parthenogenetic development. The surface markers of MSCs were identified with a fluorescence-activated cell sorter. The dynamic changes of the spindle and formation of pronuclei were examined by...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mesenchymal stem cells; Oocyte activation; Parthenogenesis; Calcium; Cytochalasin B.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009000600006
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