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Type: Journal article
Title: Bone morphogenetic protein 15 in the pro-mature complex form enhances Bovine oocyte developmental competence
Author: Sudiman, J.
Sutton-McDowall, M.
Ritter, L.
White, M.
Mottershead, D.
Thompson, J.
Gilchrist, R.
Citation: PLoS One, 2014; 9(7):e103563-1-e103563-11
Publisher: Public Library of Science
Issue Date: 2014
ISSN: 1932-6203
Editor: Wrenzycki, C.
Statement of
Jaqueline Sudiman, Melanie L. Sutton-McDowall, Lesley J. Ritter, Melissa A. White, David G. Mottershead, Jeremy G. Thompson, Robert B. Gilchrist
Abstract: Developmental competence of in vitro matured (IVM) oocytes needs to be improved and this can potentially be achieved by adding recombinant bone morphogenetic protein 15 (BMP15) or growth differentiation factor (GDF9) to IVM. The aim of this study was to determine the effect of a purified pro-mature complex form of recombinant human BMP15 versus the commercially available bioactive forms of BMP15 and GDF9 (both isolated mature regions) during IVM on bovine embryo development and metabolic activity. Bovine cumulus oocyte complexes (COCs) were matured in vitro in control medium or treated with 100 ng/ml pro-mature BMP15, mature BMP15 or mature GDF9 +/- FSH. Metabolic measures of glucose uptake and lactate production from COCs and autofluorescence of NAD(P)H, FAD and GSH were measured in oocytes after IVM. Following in vitro fertilisation and embryo culture, day 8 blastocysts were stained for cell numbers. COCs matured in medium +/- FSH containing pro-mature BMP15 displayed significantly improved blastocyst development (57.7±3.9%, 43.5±4.2%) compared to controls (43.3±2.4%, 28.9±3.7%) and to mature GDF9+FSH (36.1±3.0%). The mature form of BMP15 produced intermediate levels of blastocyst development; not significantly different to control or pro-mature BMP15 levels. Pro-mature BMP15 increased intra-oocyte NAD(P)H, and reduced glutathione (GSH) levels were increased by both forms of BMP15 in the absence of FSH. Exogenous BMP15 in its pro-mature form during IVM provides a functional source of oocyte-secreted factors to improve bovine blastocyst development. This form of BMP15 may prove useful for improving cattle and human artificial reproductive technologies.
Keywords: Oocytes
Culture Media
Fertilization in Vitro
Embryo Culture Techniques
Embryonic Development
Growth Differentiation Factor 9
Bone Morphogenetic Protein 15
In Vitro Oocyte Maturation Techniques
Rights: © 2014 Sudiman et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
DOI: 10.1371/journal.pone.0103563
Appears in Collections:Aurora harvest 7
Paediatrics publications

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