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An in vitro effect of PPAR beta/delta ligands on transcriptomic profile of porcine corpus luteum during LPS-induced inflammation

ABSTRACT: An in vitro effect of PPAR beta/delta ligands on transcriptomic profile of porcine corpus luteum during LPS-induced inflammation

PROVIDER: PRJEB55168 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR10030011_1.fastq.gz	Fastqsanger.gz
	ERR10030011_2.fastq.gz	Fastqsanger.gz
	ERR10030012_1.fastq.gz	Fastqsanger.gz
	ERR10030012_2.fastq.gz	Fastqsanger.gz
	ERR10030013_1.fastq.gz	Fastqsanger.gz

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Transcriptomic profile of porcine corpus luteum after PPAR gamma ligands treatment

Project description:The corpus luteum plays a critical role in reproduction because it is the primary source of circulating progesterone. This study aimed to determine the in vitro effect of peroxisome proliferator-activated receptor gamma (PPARγ) ligands on the transcriptome genes expression in the porcine corpus luteum in the mid- and late-luteal phase of the estrous cycle using RNA-seq technology. The corpus luteum slices were incubated in vitro in the presence of PPARγ agonist – pioglitazone and antagonist—T0070907. We identified 40 differentially expressed genes after pioglitazone treatment and 40 after T0070907 treatment in the mid-luteal phase as well as 26 after pioglitazone and 29 after T0070907 treatment in late-luteal phase of the estrous cycle. In addition, we detected differences in genes expression between the mid- and late-luteal phase without treatment (409). These results should become a basis for further studies explaining the mechanism of PPARγ action in the reproductive system in pigs.

2022-11-15 | E-MTAB-11964 | biostudies-arrayexpress

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Exploring the Plasma Proteome Linked to Corpus Luteum Presence and Conception Mode Across Pregnancy Stages and Postpartum

Project description:Observational data suggest that women conceiving without a corpus luteum are at higher risk of developing preeclampsia. While the underlying mechanisms remain unclear, the absence of corpus luteum-derived secretory products may be a contributing factor. This study investigates whether the plasma proteome differs between women who conceive with or without a corpus luteum and examines the relationship with mode of conception. Plasma samples from 12 participants were collected at three time points: first trimester, third trimester, and postpartum. The cohort included women who conceived unassisted (UC) after infertility, via artificial cycle frozen embryo transfer (AC FET), or natural cycle frozen embryo transfer (NC FET). 36 plasma protein samples were analyzed using mass spectrometry-based proteomics to compare the proteome of women who conceived with and without a corpus luteum, across different conception methods and pregnancy stages. In total, 528 proteins were quantified. No differentially expressed plasma proteins were identified between women with and without a corpus luteum. However, 15 proteins showed differential expression between UC and FET at all time points, with Bonferroni-corrected p<9.47 × 10E-5 and FC≥|2|. Several altered proteins, including PAPPA and ANG, were linked to preeclampsia. SERPINA7 was differentially detected when comparing time points within the unassisted conception method. No significant differences were detected between AC FET and NC FET. This pilot study revealed a unique proteomic signature associated with mode of conception. The findings suggest biologically plausible candidate proteins for further testing. Validation in larger cohorts or with alternative proteome analysis technologies is needed

2025-09-30 | PXD067974 | Pride

An in vitro effect of PPAR beta/delta ligands on transcriptomic profile of porcine corpus luteum during LPS-induced inflammation

Project description:The aim of this study was to determine the in vitro effects of peroxisome proliferator-activated receptor-beta/delta (PPARβ/δ) ligands on the transcriptomic profile of the LPS-stimulated pig CL in the mid-luteal phase of the estrous cycle using RNA-seq technology. The CL slices were incubated in the presence of LPS or in combination with LPS and the PPARβ/δ agonist-GW0724 (1 μmol/L or 10 μmol/L) or the antagonist-GSK3787 (25 μmol/L). We identified 117 differentially expressed genes after treatment with LPS; 102 and 97 differentially expressed genes after treatment respectively with the PPARβ/δ agonist at a concentration of 1 μmol/L or 10 μmol/L, as well as 88-after treatment with the PPARβ/δ antagonist

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Temporal changes in miRNA abundance in the corpus luteum during early pregnancy

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