L-lactate induces specific genome wide alterations of gene expression in cultured bovine granulosa cells
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ABSTRACT:
PROVIDER: PRJNA497276 | ENA |
REPOSITORIES: ENA
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Project description:Background: Previously, we could show that L-lactate affects cultured bovine granulosa cells (GC) in a specific manner driving the cells into an early pre-ovulatory phenotype. Here we studied genome wide effects in L-lactatetreated GC to further elucidate the underlying mechanisms that are responsible for the L-lactate induced transformation. Cultured estrogen producing GC treated either with L-lactate or vehicle control were subjected to mRNA microarray analysis. Results: The analysis revealed 487 differentially expressed clusters, representing 461 annotated genes. Of these, 333 (= 318 genes) were identified as up- and 154 (= 143 genes) as down-regulated. As the top up-regulated genes we detected TXNIP, H19 and AHSG as well as our previously established marker transcripts RGS2 and PTX3. The top down-regulated genes included VNN1, SLC27A2 and GFRA1, but also MYC and the GC marker transcript CYP19A1. Pathway analysis with differentially expressed genes indicated “cAMP-mediated signaling” and “Axon guidance signaling” among the most affected pathways. Furthermore, estradiol, progesterone and Vegf were identified as potential upstream regulators. An effector network analysis by IPA provided first hints that processes of “angiogenesis” and “vascularization”, but also “cell movement” appeared to be activated, whereas “organismal death” was predicted to be inhibited. Conclusions: Our data clearly show that L-lactate alters gene expression in cultured bovine GC in a broad, but obviously specific manner. Pathway analysis revealed that the mode of L-lactate action in GC initiates angiogenic processes, but also migratory events like cell movement and axonal guidance signaling, thus supporting the transformation of GC into an early luteal phenotype.
2019-04-29 | GSE121408 | GEO
Project description: Not available
| S-EPMC6451254 | biostudies-literature
Project description:In previous studies it has been shown that bovine granulosa cells (GC) cultured at a high plating density dramatically change their physiological and molecular characteristics, thus resembling an early stage of luteinization. During the present study, these specific effects on the GC transcriptome were comprehensively analysed of the same cell culture model comparing GC cultured at normal and high density.
2016-12-31 | GSE79311 | GEO
Project description:The growth of the mammalian ovarian follicle requires the formation of a fluid filled antrum, and maturation and differentiation of the ovarian granulosa cells, largely under the control of Follicle Stimulating Hormone (FSH). Many follicles will regress and die by a process called atresia at this early antral stage. We therefore decided to analyse the gene expression profiles of granulosa cells cultured in the presence or absence of FSH and Tumour Necrosis Factor-alpha (TNFα), an apoptotic factor, to simulate the key influences. Different concentratons of FSH and TNFa in granulosa culture were used to determine effective conditions via estradiol and progesterone production, and cell number. RNA for the array experiments and quantitative real time PCR was extracted from cells cultured with FSH added at 0.33 and TNFα at 50 ng/ml.
2014-05-20 | GSE42535 | GEO
Project description:The palmitoyl-proteome of bovine granulosa cells (GC) cells was investigated by combining acyl-biotin exchange chemistry and quantitative mass spectrometry analysis.
2022-02-15 | PXD020547 | Pride
Project description:The growth of the mammalian ovarian follicle requires the formation of a fluid filled antrum, and maturation and differentiation of the ovarian granulosa cells, largely under the control of Follicle Stimulating Hormone (FSH). Many follicles will regress and die by a process called atresia at this early antral stage. We therefore decided to analyse the gene expression profiles of granulosa cells cultured in the presence or absence of FSH and Tumour Necrosis Factor-alpha (TNF-alpha), an apoptotic factor, to simulate the key influences. Different concentratons of FSH and TNFa in granulosa culture were used to determine effective conditions via estradiol and progesterone production, and cell number. RNA for the array experiments and quantitative real time PCR was extracted from cells cultured with FSH added at 0.33 and TNF-alpha at 50 ng/ml. Four treatments of : (1) FSH alone, (2) TNF-alpha alone, (3) FSH + TNF-alpha and (4) control = neither drug, with replicates (n=4, except controls n=3 ) were used to generate RNA for the gene expression arrays (n=15)
2014-05-20 | E-GEOD-42535 | biostudies-arrayexpress
Project description:Transcriptional profiling of bovine in-vitro produced blastocysts at day 7 and granulosa cells collected at day 8 to 11 post-eostrus of lactating cows. Two-condition experiment, in-vitro Blastocyst vs. Granulosa cells. Biological replicates: 3 . One replicate per array. Dye swap experiment, two-colors.
2011-07-31 | E-GEOD-27530 | biostudies-arrayexpress
Project description:Transcriptional profiling of bovine in-vitro produced blastocysts at day 7 and granulosa cells collected at day 8 to 11 post-eostrus of lactating cows.
2011-08-01 | GSE27530 | GEO
Project description:The study aimed to uncover differential expression pattern of microRNAs in bovine granulosa cells subjected to heat stress
2020-09-30 | GSE146490 | GEO
Project description:Granulosa cells mature and die as ovarian follicles enlarge and die (undergo atresia) under the influence of hormones and intrafollicular factors. Later in follicular development, a fluid-filled antrum is formed, a process which is accompanied by a high rate of atresia. These small antral follicles (5 mm or less in diameter in the cow) contain granulosa of 2 different phenotypes, rounded or columnar, whereas follicles larger than 5 mm have the rounded phenotype only. Prior to ovulation, in larger follicles greater than 10 mm in size, the granulosa begin to migrate and differentiate in preparation for oocyte release and formation of the corpus luteum. These two key phases of follicular development were studied by gene expression microarray analysis using a bovine model to dissect the molecular mechanisms underlying these processes. Four groups of bovine ovarian follicles were selected for analysis. Follicle size, type and array number for each group are as follows: small (3-5 mm) healthy rounded (n=5), small healthy columnar (n=5), atretic (n=5) and large healthy (>10 mm; n=4). For each group, the RNA from a single follicle was used to hybridise an array, except for 3 small healthy samples which were pooled from 2 follicles each due to low RNA.
2014-05-20 | E-GEOD-39589 | biostudies-arrayexpress