Dataset Information

Vitrification of embryos modifies foetal placenta proteome. MALDI TOF/TOF

ABSTRACT: Very limited information about the post-implantatory effects of vitrification has been published till now. In a previous study, we observed that vitrification procedure introduced transcriptomic and proteomic modifications in the rabbit foetal placenta at the middle of gestation. In addition, a reduction in maternal placenta and foetal weight was also detected. In order to know if these alterations were temporary or not, the aim of the current study was to analyse the proteomic profile of rabbit foetal placenta at two different times of gestation: Day 14 and Day 24. We performed a comparative 2D-DIGE analysis and found that placentas from vitrified embryos expressed eleven different proteins at Day 14 and thirteen at Day 24. The alteration of serum albumin, isocitrate dehydrogenase 1 [NADP+] and phosphoglycerate mutase 1 were maintained both Day 14 and Day 24. Our results demonstrate that vitrification is not neutral, and induce a substantial alteration of placental protein expression, even at the end of gestation. But, apart from short-term effects observed on embryos, could vitrification entail long-term consequences in those foetuses that are going to be born? Further studies will determine if alterations observed could be the set point of future modifications to manifest into adulthood

INSTRUMENT(S): TOF/TOF 5800

ORGANISM(S): Oryctolagus Cuniculus Cuniculus

TISSUE(S): Placenta

DISEASE(S): Disease Free

SUBMITTER: Luz Valero

LAB HEAD: Francisco Marco-Jiménez

PROVIDER: PXD001840 | Pride | 2015-07-17

REPOSITORIES: Pride

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Publications

Effect of Embryo Vitrification on Rabbit Foetal Placenta Proteome during Pregnancy.

Saenz-de-Juano Maria Desemparats MD Vicente José Salvador JS Hollung Kristin K Marco-Jiménez Francisco F

PloS one 20150427 4

Very limited information on the post-implantatory effects of vitrification has been published till now. We observed in a previous study that the vitrification procedure for the cryopreservation of embryos introduced transcriptomic and proteomic modifications in the rabbit foetal placenta at the middle of gestation. Now, we have conducted a proteomic study to determine whether protein alterations in the foetal placenta induced by the vitrification procedure remain during pregnancy. In this study, ...[more]

PMID: 25915775

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Project description:The aim of this work was to evaluate the influence of maternal and embryonic genotype of two lines of rabbit selected by growth rate (line R) and litter size at weaning (line A) on foetal and placental growth. Embryos were recovered at 48 h of gestation from line R (46) and line A (40) donors and transferred to nulliparous recipient does (26 R and 24 A). Each recipient doe received six embryos into one oviduct from line R and six embryos form line A into the other. Laparoscopy was performed at day 14 to determine implantation rate. Recipient females were slaughter at day 14, 24 and 30 (12, 24, 14, respectively) to determine the number of live fetuses and the weight of live foetuses, foetal placenta and maternal placenta. To analyze endocrine levels, blood serum was collected from 14 females at 14, 21 and 28 days of gestation. A transcriptome analysis was performed to search for differences between foetal placentas at day 14 and 24 of development. Foetal survival at Days 14, 24 and 30, and weight at Day 14 was higher for line A embryos, being the weight higher for AA genotype (0.29Â±0.01g vs. 0.19Â±0.01g ,for RR genotype). Only the R embryonic genotype showed higher foetal weight at Day 30 (53.4 Â± 1.74 vs. 48.5 Â± 1.81, for line R and line A foetuses). However, foetal and maternal placentas were higher for RR genotype on Day 24 and 30. No differences in foetal placenta at transcriptome level were found. Additionally, both progesterone and IGF-I levels were similar between lines. In conclusion, line R presented reproductive troubles, with higher gestational losses at embryonary level at Day 14 and 24, and uterine environment problems at least at last part of gestation which reduced survival rate of A line foetuses. Embryos were recovered at 48 h of gestation from line R and line A donors and transferred to nulliparous recipient does. Recipient females were slaughter at Day 14 and 24, and a transcriptomic comparison analysis was performed from foetal placenta tissue.

			Action	DRS
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	FcoMarco_140414_411.mgf	Mgf
	H3_MSMS_1066.1826_3-1.cal	Other
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	H3_MSMS_1199.7952_4-1.cal	Other