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Transcriptomic signature of in vitro heat stress challenged porcine granulosa cells

ABSTRACT: Transcriptomic signature of in vitro heat stress challenged porcine granulosa cells

PROVIDER: PRJNA1017451 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR26060940_1.fastq.gz	Fastqsanger.gz
	SRR26060940_2.fastq.gz	Fastqsanger.gz
	SRR26060941_1.fastq.gz	Fastqsanger.gz
	SRR26060941_2.fastq.gz	Fastqsanger.gz
	SRR26060942_1.fastq.gz	Fastqsanger.gz

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Transcriptomic signature of in vitro heat stress challenged porcine granulosa cells

Project description:Exploration of heat stress induced genes in granulosa cells is critical to characterization of candidate genes for thermal stress research in pigs. This study aimed to gain insight into the differentially expressed genes (DEGs) and signalling pathways regulating porcine granulosa cell adaptation to in vitro heat stress challenge at 42OC for 6 hours. Transcriptome profiling of heat stressed (treated) and non-heat stressed (control) granulosa cells was conducted using Illumina NextSeq2000 sequencing platform. The significant DEGs were selected using NOISeq R package with cut-offs, probability value ≥ 0.95 and absolute log2(fold change) ≥1. Bioinformatics analysis of DEGs were conducted to explore functional annotations enrichment, protein-protein interaction network and hub genes regulating the cellular homeostasis and survivability during heat stress challenge.

2024-10-22 | GSE243234 | GEO

Gene expression profile in porcine ovarian granulosa cells during short-term in vitro culture

Project description:The porcine ovarian granulosa cells, when analysed during in vitro cultures, may provide new interesting data on the processes associated with in vitro culture of porcine oocytes, as well as assisted reproduction and in vitro fertilisation processes used in the livestock industry. Porcine ovarian granulosa cells were obtained from 43 crossbred Landrace gilts with a median age of 170 days and weight of 98 kg after slaugheter. The cells were harvested after 0h, 48h, 96h and 144h after begining of culture and submited to RNA isolation and microarray analisys. In this study, we demonstrated the gene expression profile of short term primary cultured porcine ovarian granulosa cells.

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YTHDF2 mediates the action of BDNF stimulating proliferation of porcine follicle granulosa cells

Project description:Total RNA of porcine follicle granulosa cells from different groups was extracted and RNA purity and quality control were performed.

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Nicotinamide mononucleotide improves the quality of porcine oocytes deteriorated by heat stress

Project description:Elevated ambient temperature results in heat stress which is a major concern for productivity and product quality due to its negative impact on animal health, productivity and product quality. As global warming becomes more and more serious, the impact of heat stress (HS) on animal husbandry cannot be ignored. However, the effect of NMN on the quality of porcine oocytes after heat stress and the prevention strategies are not yet fully understood. Here, we report that nicotinamide mononucleotide (NMN) treatment ameliorates the quality of porcine oocytes exposed to heat stress. Specifically, we found that HS caused oocyte meiosis failure by disrupting the dynamics and arrangement of meiotic organelles, showing obvious damage to cytoskeleton assembly. Furthermore, heat stress can cause damage to oocyte mitochondria, which is an indicator of oocyte cytoplasmic maturation. On the contrary, supplementation of NMN can improve this phenomenon, maintain the normal chromosome/spindle structure, and the dynamics of CGs and its core content ovastacin.

2022-06-22 | GSE185338 | GEO

Time course analysis of dedifferentiation in porcine follicular granulosa cells

Project description:Cellular dedifferentiation signifies the withdrawal of cells from a specific differentiated state into a M-bM-^@M-^Xstem cellM-bM-^@M-^Y-like undifferentiated state. However, the mechanism of dedifferentiation remains obscure. We showed that follicular granulosa cells (GC), which have distinct functions in vivo, can dedifferentiate during culture in vitro and acquire multipotency. We investigated the dedifferentiation of GC using global gene expression analyses. Total RNA was isolated from GCs to DFOG cells at 5 time points during dedifferentiation (cultured in 0day, 1day, 2day, 4day and 7day). Each timepoint was performed in triplicate (ie, biological replicates). Using Affymetrix porcine genome array, we performed microarray time course experiments to analyze gene expression profiles during GC dedifferentiation.

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Oxidative stress-mediated alterations of the microRNA expression profile in porcine granulosa cells using RNA-Seq technique

Project description:To investigate the effects of oxidative stress induced by hydrogen peroxide(H2O2) on miRNA expression in porcine granulosa cells,we examined the impact of H2O2-mediated oxidative stress in procine GC through miRNA-Seq. We identified 33 (19 upregulated, 14downregulated) and 22 (14 upregulated, 8 downregulated miRNAs) differentially expressed miRNAs (DEmiRNAs) at 300μM and 100μM H2O2, respectively, compared with the control group.

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Project description:High environmental temperatures induce detrimental effects on various reproductive processes in cattle. According to the predicted global warming the number of days with unfavorable ambient temperatures will further increase. The objective of this study was to investigate effects of acute heat stress during the late pre-ovulatory phase on morphological, physiological and molecular parameters of dominant follicles in cycling cows during lactation. Eight German Holstein cows in established lactation were exposed to heat stress (28°C) or thermoneutral conditions (15°C) with pair-feeding for four days. After synchronization growth of dominant follicles was monitored by ultrasonogrphy, and 21 hrs after an induced pre-ovulatory LH surge antral steroid hormones and granulosa cell-specific gene expression profiles were determined. The data showed that the pre-ovulatory growth of dominant follicles and the estradiol, but not the progesterone concentrations tended to be slightly affected. mRNA microarray and hierarchical cluster analysis revealed distinct expression profiles in granulosa cells derived from heat stressed compared to pair-fed animals. Among the 255 affected genes heatstress-, stress- or apoptosis associated genes were not present. But instead, we found up-regulation of genes essentially involved in G-protein coupled signaling pathways, extracellular matrix composition, and several members of the solute carrier family as well as up-regulation of FST encoding follistatin. In summary, the data of the present study show that acute pre-ovulatory heat stress can specifically alter gene expression profiles in granulosa cells, however without inducing stress related genes and pathways and suggestively can impair follicular growth due to affecting the activin-inhibin-follistatin system.

2016-09-30 | GSE81737 | GEO

Comparative transcriptome analysis of dedifferentiation in porcine mature adipocytes and follicular granulosa cells

Project description:Cellular dedifferentiation signifies the withdrawal of cells from a specific differentiated state into a M-bM-^@M-^Xstem cellM-bM-^@M-^Y-like undifferentiated state. However, the mechanism of dedifferentiation remains obscure. We showed that mature adipocytes (MA) and follicular granulosa cells (GC), which have distinct functions in vivo, can dedifferentiate during culture in vitro and acquire multipotency. We investigated the dedifferentiation mechanism of MA and GC using global gene expression analyses. Using Affymetrix porcine genome array, we compared global gene expression profiles during dedifferentiation to search for particular biological functions in genes of which expression intensities were increased or decreased by MA and GC dedifferentiation.

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