Abstract:
:The physiological role of cumulus cell surrounding oocytes is particularly important for normal cytoplasmic maturation of oocytes. Collagen-based demineralized bone matrix (DBM) is a valuable biomaterial for the three-dimensional (3-D) cell culture. The present study was designed to determine whether in vitro maturation (IVM) of cumulus-free oocytes in mice could be improved by using the 3-D DBM co-culture system. The results indicated that the denuded oocytes cultured in 3-D DBM co-culture system with cumulus cells showed close similarity of cortical granules (CGs) distribution pattern, had more normal maturation-promoting factor (MPF) level and zona pellucida (ZP) hardening level to the in vivo matured oocytes, and the best preimplantation development after being activated by in vitro fertilization (IVF) or parthenogenetic activation. Thus, 3-D DBM collagen scaffold could serve as a tool for fundamental in vitro studies of cells or tissues under the environment that closely assembles the in vivo conditions.
journal_name
Biomaterialsjournal_title
Biomaterialsauthors
Ma S,Lin H,Miao Y,Liu X,Wang B,Dai Jdoi
10.1016/j.biomaterials.2007.03.007subject
Has Abstractpub_date
2007-07-01 00:00:00pages
3198-207issue
21eissn
0142-9612issn
1878-5905pii
S0142-9612(07)00220-7journal_volume
28pub_type
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