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Differential functional effects of Indomethacin along the human fetal intestine

ABSTRACT: Transcriptional profiling of small and large intestinal explants cultured in the absence or in the presence of Indomethacin (1 µM).

ORGANISM(S): Homo sapiens

PROVIDER: GSE38406 | GEO | 2013/01/01

SECONDARY ACCESSION(S): PRJNA167798

REPOSITORIES: GEO

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Differential functional effects of Indomethacin along the human fetal intestine

Project description:Transcriptional profiling of small and large intestinal explants cultured in the absence or in the presence of Indomethacin (1 µM). Two-condition experiment, control intestinal explants vs Indomethacin intestinal explants #4 replicates were normalized in a separate batch from the other replicates.

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Genome-wide microarray analysis of human fibroblasts in response to indomethacin and nimesulide.

Project description:Establishment of a transcriptomic profile of human cells treated with genistein with particular emphasis on signature of genes coding for enzymes involved in glycosaminoglycan synthesis stands for the present study. The hypothesis tested was that indomethacin and nimesulide influence expression of some genes among which are those coding for enzymes required for synthesis of different GAGs being pathologically accumulated in mucopolysaccharidoses. Results provide important information concerning the extent of action of indomethacin and nimesulide at the molecular level in terms of modulation of gene expression by these substances.

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Altered Gene Expression Profile in Ovarian Follicle in Rats Treated with Indomethacin and RU486

Project description:It is well-known that indomethacin (the cyclooxygenase 1 & 2 inhibitor) and RU486 (or mifepristone, the progesterone receptor antagonist) block follicular rupture in rats. To characterize genetic alterations in unruptured follicles, gene expression profiles in ovarian follicle were analyzed in indomethacin- and RU486-treated female Sprague-Dawley rats. Ovaries are collected at 22:00 on the proestrus day and 10:00 on the following estrus day after a single dose of indomethacin and RU486. Histopathologically, changes depicting responses to LH surge were observed in ovaries, uteri and vagina. Total RNA was extracted from pre-ovulatory follicles or unruptured follicles collected by laser microdissection and analyzed by GeneChip. Among genes showing statistically significant changes compared to control groups, following changes were considered relevant to induction of unruptured follicles. In indomethacin-treated rats, Wnt4 was down-regulated, suggesting effect on tissue integrity and steroid genesis. In RU486-treated rats, Adamts1, Adamts9, Edn2, Ednra, Lyve1, Plat, and Pparg were down-regulated. These changes suggest effects on proteolysis for extracellular matrix or surrounding tissue (Adamts1 & 9, and Plat), constriction of smooth muscle surrounding follicles (Edn2, Ednra, and Pparg), follicular fluid (Lyve1), and angiogenesis (Pparg). Down-regulation of angiogenesis related genes (Angpt2, Hmox1, and Vegfa) was observed in both treatment groups. Here, we clarify genetic alterations induced by the inhibition of cyclooxygenase or progesterone receptor.

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The transitional Gene Expression Profiling of Ovarian Follicle Treated with Indomethacin and RU486 in Rats

Project description:Indomethacin (an inhibitor of prostaglandin synthesis) and RU486 (mifepristone, progesterone receptor antagonist) are well known compounds which impair follicle rupture in rats, nevertheless the histopahotlogical figures of these follicle were different in detail due to the difference of the pathway which each compound inhibits. To characterize these unruptured follicles further and to investigate the genes which were altered in each rat treated with indomethacin or mifepristone, gene expression profile in ovarian follicle were analyzed in female sprague-Dawley rats. Peri- or post ovulatory follicles were collected by laser microdissection and extracted RNA was analyzed by genechip after single dosage of mifepristone or indomethacin. Animals were singly administered orally Indomethacin (IM) at 4mg/kg at 16:00 or RU486 (RU) at 100 mg/kg at 10:00 on the proestrus day, and sacrificed by exsanguination under anesthesia at 22:00 on the proestrus day (PeF: peri-ovulatory follicle), and 10:00 on the estrus day (PoF: post-ovulatory follicle). Ovaries were also collected from untreated rats at 22:00 on the proestrus day, and 10:00 on the estrus day as control groups. Three animals were contained per each treatment group at each timing. The ovaries were removed and embedded in OCT (Tissue-Tek, Sakura Finetek, Torrance, CA), frozen in dry-ice-cold isopentan, and stored at -70 C until used. Frozen sections (8 micro meter thick) were mounted on the membrane slides (MMI, Glatteburg, Zurich, Switzerland), and stained with HistogeneTM LCM frozen section staining kit (Arcturus Engineering, Mountain View, CA). Then, 15 follicles in each phase were retrieved by Laser Micro Dissection system (LMD, CellCut Plus, MMI). The collected follicle sections were lysed by the buffer RLT in the collection tube supplied in RNeasy Micro Kit (Qiagen, Hilden, Germany), and total RNA was extracted according to manufacturer's instructions.

2014-02-01 | E-GEOD-54584 | biostudies-arrayexpress

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