Maternal control of oocyte quality in cattle “a review”

Moussa, Mahmoud Ali; Shen, Juan; Zhang, X.H.; Zeng, Fanyi

doi:10.1016/j.anireprosci.2015.01.011

Cited by 47 publications

(33 citation statements)

References 233 publications

(241 reference statements)

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“…On the other hand, nutritional support has been identified as one of the relevant factors affecting embryo developmental competence of oocytes and embryos (Moussa, Shu, Zhang, & Zeng, ). Indeed, following our hypothesis, maternal nutrition is essential to provide the follicular cells with enough energy to grow and complete developmental programmes (Moussa et al., ). Nevertheless, despite the evidence, discrepancies are still found in the literature regarding the impact of nutrition on oocyte and embryonic quality.…”

Section: Discussionmentioning

confidence: 99%

Feed restriction regime in a rabbit line selected for growth rate alters oocyte maturation manifested by alteration in MSY2 gene expression

Naturil-Alfonso

Peñaranda

Vicente

et al. 2017

Reprod Domestic Animals

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Young rabbit females selected for growth rate may have nutritional needs, which may not be met with the common practice of feed restriction during rearing in commercial rabbit production. The aim of this study was to analyse whether two different feeding programmes: ad libitum or restricted (130 g/day) feeding, applied in young rabbit females for 1 month at the end of rearing, could modulate the origin of ovulation process and the quality of the oocytes. At 16 weeks of age, 34 females were randomly assigned to restricted or ad libitum feeding, maintaining these conditions for a month. Then, in an initial experiment, transcriptional profiling of hypothalamus-hypophysis tissue was performed to assess failure to ovulate. In the second experiment, the gene expression analysis of some candidate genes related to oocytes quality was performed. Our results demonstrated that neither of the two feeding programmes modified the transcription of hypothalamus-hypophysis tissue, while the only differences in MSYR expression were found in in vivo mature oocytes ready for successful fertilization. Specifically, MSYR was over-expressed in oocytes from females fed ad libitum. MSYR is one of the most abundant proteins in the oocyte and has proven to be a key regulator of maternal RNA transcription and translation. This finding suggests that MSYR gene is a promising gene in our understanding of the relationship between high growth rate and reproductive performance decline.

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Section: Discussionmentioning

confidence: 99%

Feed restriction regime in a rabbit line selected for growth rate alters oocyte maturation manifested by alteration in MSY2 gene expression

Naturil-Alfonso

Peñaranda

Vicente

et al. 2017

Reprod Domestic Animals

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“…Although the sperm cell and the oocyte contribute equally to the genetic material of the newly formed embryo, the necessary molecular and organelle machinery for growth and regulation of early embryonic development are established during oocyte maturation (Coticchio et al, ). Oocyte growth involves the increase of cell mass, proliferation of organelles, accumulation of maternal transcripts, and translational products that are required after fertilization, before activation of the embryonic genome (Li, Zheng, & Dean, ; Moussa, Shu, Zhang, & Zeng, ; Sirard et al, ; Sirard, Richard, Blondin, & Robert, ). Additionally, oocyte maturation requires changes to oocyte chromatin, repositioning of organelles, and facilitating meiotic resumption in response to the LH surge (Coticchio et al, ).…”

Section: Introductionmentioning

confidence: 99%

Lipopolysaccharide and tumor necrosis factor‐alpha alter gene expression of oocytes and cumulus cells during bovine in vitro maturation

Piersanti

Santos

Sheldon

et al. 2019

Molecular Reproduction Devel

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Communication between the oocyte and cumulus facilitates oocyte growth, cell cycle regulation, and metabolism. This communication is mediated by direct contact between oocytes and cumulus cells, and soluble secreted molecules. Secreted molecules involved in this process are known inflammatory mediators. Lipopolysaccharide (LPS) is detected in follicular fluid and is associated with reduced fertility, whereas accumulation of inflammatory mediators in follicular fluid, including tumor necrosis factor-α (TNF-α), is associated with female infertility. Maturation of oocytes in the presence of LPS or TNF-α reduces meiotic maturation and the capacity to develop to the blastocyst. Here we evaluated the abundance of 92 candidate genes involved immune function, epigenetic modifications, embryo development, oocyte secreted factors, apoptosis, cell cycle, and cell signaling in bovine cumulus cells or zona-free oocytes after exposure to LPS or TNF-α during in vitro maturation. We hypothesize that LPS or TNF-α will alter the abundance of transcripts in oocytes and cumulus cell in a cell type dependent manner. Exposure to LPS altered abundance of 31 transcripts in oocytes (including ACVR1V, BMP15, DNMT3A) and 12 transcripts in cumulus cells (including AREG, FGF4, PIK3IP1). Exposure to TNF-α altered 1 transcript in oocytes (IGF2) and 4 transcripts in cumulus cells (GJA1, PLD2, PTGER4, STAT1). Cumulus expansion was reduced after exposure to LPS or TNF-α. Exposing COCs to LPS had a marked effect on expression of targeted transcripts in oocytes. We propose that altered oocyte transcript abundance is associated with reduced meiotic maturation and embryo development observed in oocytes cultured in LPS or TNF-α.

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“…Besides the importance of controlling culture external conditions, supplementation in vitro to correct specific molecular deficiencies has been reported to increase the efficiency of assisted reproduction techniques (Chen et al, ; Heras et al, ; Moussa, Shu, Zhang, & Zeng, ; Redel et al, ; Yuan et al, ). Recent studies have explored the potential of specific growth factors and amino acids to optimize maturation and embryo culture media (Chen et al, ; Krisher & Prather, ; Redel et al, ; Redel, Tessanne, Spate, Murphy, & Prather, ; Yuan et al, ).…”

Section: Introductionmentioning

confidence: 99%

Applications of omics and nanotechnology to improve pig embryo production in vitro

Lucas

Chen

Seixas

et al. 2019

Molecular Reproduction Devel

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An appropriate environment to optimize porcine preimplantation embryo production in vitro is required as genetically modified pigs have become indispensable for biomedical research and agriculture. To provide suitable culture conditions, omics technologies have been applied to elucidate which metabolic substrates and pathways are involved during early developmental processes. Metabolomic profiling and transcriptional analysis comparing in vivo‐ and in vitro‐derived embryos have demonstrated the important role of amino acids during preimplantation development. Transcriptional profiling studies have been helpful in assessing epigenetic reprogramming agents to allow for the correction of gene expression during the cloning process. Along with this, nanotechnology, which is a highly promising field, has allowed for the use of engineered nanoplatforms in reproductive biology. A growing number of studies have explored the use of nanoengineered materials for sorting, labeling, and targeting purposes; which demonstrates their potential to become one of the solutions for precise delivery of molecules into gametes and embryos. Considering the contributions of omics and the recent progress in nanoscience, in this review, we focused on their emerging applications for current in vitro pig embryo production systems to optimize the generation of genetically modified animals.

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Maternal control of oocyte quality in cattle “a review”

Cited by 47 publications

References 233 publications

Feed restriction regime in a rabbit line selected for growth rate alters oocyte maturation manifested by alteration in MSY2 gene expression

Feed restriction regime in a rabbit line selected for growth rate alters oocyte maturation manifested by alteration in MSY2 gene expression

Lipopolysaccharide and tumor necrosis factor‐alpha alter gene expression of oocytes and cumulus cells during bovine in vitro maturation

Applications of omics and nanotechnology to improve pig embryo production in vitro

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