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Activin-deficient granulosa cells

ABSTRACT: Compares activin deficient granulosa cells (Inhba flox/-; Inhbb-/-; Amhr2cre/+) to wild type granulosa cells Keywords: Genetic Modificaton

ORGANISM(S): Mus musculus

PROVIDER: GSE7150 | GEO | 2007/12/28

SECONDARY ACCESSION(S): PRJNA98263

REPOSITORIES: GEO

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Transcription profiling of mouse Inhba flox/- Inhbb-/- Amhr2cre/+ activin-deficient granulosa cells vs. wild type

Project description:Compares activin deficient granulosa cells (Inhba flox/-; Inhbb-/-; Amhr2cre/+) to wild type granulosa cells Experiment Overall Design: Three replicate wild type granulosa cell samples compared to 2 activin-deficient granulosa cell samples. Each replicate is derived from 2-3 females.

2008-06-15 | E-GEOD-7150 | biostudies-arrayexpress

Global Profiling of Activin Target Genes in Mouse Granulosa Cells

Project description:In order to understand the mechanisms and pathways by which activin regulates follicle function, we performed a microarray study and identified activin regulated genes in mouse ovarian granulose cells. Primary cultured ovarian granulosa cells collected from day 21-23 old immature mice were treated with Activin A (A), Activin A plus its antagonist follistatin (AplusF), and PBS (P, vehicle) for 24 h. RNA from each treatment group was isolated and the experiments were repeated four times. Samples from experiment one were assigned as P1, A1 and A+F1, samples from experiment two as P2, A2 and A+F2, and so on. About 100 ng of each RNA sample was amplified using a modified Eberwine T7-based amplification protocol and hybridized to the Illumina Sentrix Mouse-6 Expression BeadChip (Illumina, Inc., San Diego, CA) that contains 48,000 sets of oligonucleotides.

2011-03-02 | E-GEOD-20583 | biostudies-arrayexpress

Palovarotene action against heterotopic ossification includes the inhibition of local participating activin-A expressing cell populations

Project description:Heterotopic ossification (HO) consists of extraskeletal bone formation. One form of HO is acquired and instigated by traumas or surgery, and another form is genetic and characterizes Fibrodysplasia Ossificans Progressiva (FOP). We and others showed that activin A promotes both acquired and genetic HO and found that the retinoid agonist Palovarotene inhibits both HO forms in mice. We asked whether Palovarotene's action against HO may include an interference with endogenous activin A expression and/or function. Using a mouse model of acquired HO, we found that activin A and its encoding RNA (Inhba) were prominent in chondrogenic cells within developing HO masses in untreated mice. Single cell RNAseq (scRNAseq) assays verified that Inhba expression characterized chondroprogenitors and chondrocytes in untreated HO, in addition to its expected expression in inflammatory cells and macrophages. Palovarotene administration caused a sharp inhibition of both HO and amounts of activin A and Inhba transcripts. Bioinformatic analyses of scRNAseq datasets indicated that the drug had reduced interactions and crosstalk amongst cell populations. Our data reveal that Palovarotene markedly reduces the number of local Inhba-expressing HO-forming populations.

2023-07-01 | GSE233843 | GEO

Palovarotene action against heterotopic ossification includes the inhibition of local participating activin A-expressing cell populations

Project description:Heterotopic ossification (HO) consists of endochondral bone forming at extraskeletal anatomical sites. One form of HO is acquired and instigated by traumas or invasive surgery, and another form is genetic and severe and characterizes patients with Fibrodysplasia Ossificans Progressiva (FOP). Previously, we showed that the synthetic retinoid agonist Palovarotene inhibits both acquired and genetic HO, and we and others subsequently showed that systemic administration of a neutralizing activin A antibody reduces both HO forms as well. Here, we asked whether Palovarotene’s action includes an interference with endogenous activin A expression and/or participation in HO. Using a standard mouse model of acquired HO, we found that activin A protein and encoding RNA (Inhba) were prominent in chondrogenic cells within developing HO masses in control untreated mice. Single cell RNAseq (scRNAseq) assays verified that Inhba expression characterized chondroprogenitors and chondrocytes in control HO, in addition to its expected expression in inflammatory cells and macrophages particularly. Palovarotene administration (4 mg/kg/day/gavage) caused a sharp inhibition of both HO and amounts of activin A and Inhba transcripts. Bioinformatic analyses of scRNAseq datasets indicated that the drug had reduced interactions and crosstalk amongst local cell populations. To determine if Palovarotene inhibited Inhba expression directly, we tested it in primary cultures of growth plate chondrocytes. Drug treatment inhibited cartilage phenotypic expression but not Inhba expression. Our data reveal that Palovarotene intersects with activin A during its anti-HO action and markedly reduces the number of local participating Inhba-expressing cell populations. The data broaden the spectrum of HO culprits against which Palovarotene acts, accounting for its therapeutic effectiveness.

2024-06-01 | GSE227253 | GEO

Innate triggering and antiviral effector functions of activin A

Project description:Transcriptomic analyses delineated strikingly congruent patterns of gene regulation in hepatocytes stimulated with recombinant activin A and IFNα in vitro. Activin A mRNA, encoded by the INHBA gene, is induced upon activation of RIG-I, MDA5 and TLR7/8 viral nucleic acid sensors in vitro, across multiple cell lines and also in human peripheral blood mononuclear cells

2021-12-08 | GSE190277 | GEO

Whole transcriptome RNAseq analysis of somatic cells in Inhba fetal testes

Project description:We performed RNA-seq on testicular somatic cells from fetal activin A-deficient mice (Inhba KO) and wildtype littermates at embryonic ages E13.5 and E15.5. Activin A deficiency predominantly affects the Sertoli cell transcriptome. New candidate targets include Minar1, Sel1l3, Vnn1, Sfrp4, Masp1, Nell1, Tthy1 and Prss12. Importantly, the testosterone (T) biosynthetic enzymes present in fetal Sertoli cells, Hsd17b1 and Hsd17b3, were identified as activin-responsive. Activin-deficient testes contained elevated androstenedione (A4), displayed an Inhba gene dose-dependent A4/T ratio, and contained 11-keto androgens.

2020-04-20 | GSE143847 | GEO

Mus musculus

Project description:Activin-deficient granulosa cells

| PRJNA98263 | ENA

Gene expression profile at single cell level of syngeneic ovarian tumors from mice treated with inhibitory Activin-A antibody or control IgG

Project description:Effective targeting of cancer-associated fibroblasts (CAFs) is hindered by the lack of specific biomarkers and a poor understanding of the mechanisms by which different populations of CAFs contribute to cancer progression. While the role of TGFβ in CAFs is well-studied, less attention has been focused on a structurally and functionally similar protein, Activin A (encoded by INHBA), which is typically associated with poor survival and advanced stage in ovarian cancer. Here, we identified INHBA(+) CAFs as key players in tumor promotion and immune evasion. In syngeneic ovarian cancer mouse models, intraperitoneal injection of the Activin A neutralizing antibody attenuated tumor progression and infiltration with the host INHBA(+) CAFs and M2 macrophages. Collectively, our study identified an INHBA(+) subset of pro-tumoral CAFs as a potential therapeutic target in ovarian cancer.

2023-05-01 | GSE229529 | GEO

Global Profiling of Activin Target Genes in Mouse Granulosa Cells

2011-03-02 | GSE20583 | GEO

Whole transcriptome RNAseq analysis of germ cells in Inhba and Inha fetal testis

Project description:We performed bulk RNA-Seq on male fetal germ cells isolated from E13.5 and E15.5 testes from activin A-deficient mice (Inhba KO), and from E13.5 testes from mice with greater activin A bioactivity (Inha KO). The aim of this expereiment was to determine how chronic altered activin A bioactivity altered the germline transcriptome.

2022-05-26 | GSE201520 | GEO

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