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Bovine germinal vesicle oocyte and cumulus cell proteomics
Authors
S. C. Burgess
F. McCarthy
+5 more
E. Memili
B. Nanduri
D. Peddinti
H. Sagirkaya
L. A. Shack
Publication date
1 June 2007
Publisher
Digital Commons @PVAMU
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Abstract
Germinal vesicle (GV) breakdown is fundamental for maturation of fully grown, developmentally competent, mammalian oocytes. Bidirectional communication between oocytes and surrounding cumulus cells (CC) is essential for maturation of a competent oocyte. However, neither the factors involved in this communication nor the mechanisms of their actions are well defined. Here, we define the proteomes of GV oocytes and their surrounding CC, including membrane proteins, using proteomics in a bovine model. We found that 4395 proteins were expressed in the CC and 1092 proteins were expressed in oocytes. Further, 858 proteins were common to both the CC and the oocytes. This first comprehensive proteome analysis of bovine oocytes and CC not only provides a foundation for signaling and cell physiology at the GV stage of oocyte development, but are also valuable for comparative studies of other stages of oocyte development at the molecular level. Furthermore, some of these proteins may represent molecular biomarkers for developmental potential of oocytes. © 2007 Society for Reproduction and Fertility
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Last time updated on 23/07/2022