Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA183214 | ENA |
REPOSITORIES: ENA
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Project description:We intended to investigate effects of mmu-miR-15a-3p on gene expression in mice
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Project description:Osteoblastic cells in the bone marrow produce the bone matrix, participate in mineralization of bone and regulate the balance of calcium and phosphate ions in the developing bone. In addition, the radiosensitive hematopoietic stem/progenitor cells form a niche with osteoblastic cells to maintain immature state and self-renewal in the bone marrow microenvironment. In the field of radiotherapy, internal radiotherapy using radioactive isotopes that emit alpha particles is performed, and antitumor effect is expected by radioisotopes (such as 223-Ra) when the primary cancer cells metastasize to bone marrow. A major problem in this treatment is that the efficacy and side effects form show a high degree of individual variability, and the response of a patient is very difficult to predict. The mechanisms of the variability are not known, but it is possible that some contributing factors are the alpha radiation-induced modulation of osteoblastic cell activity. However, the characteristics of micro-RNA expressions in alpha-irradiated osteoblastic cells remain unclear. The purpose of this study is to clarify the pattern of miRNA expressions in osteoblast derived from freshly bone marrow cells exposed to alpha particle radiation. Murine bone marrow cells from both femurs were differentiated to osteoblastic cells using cell culture medium and exposed to 0-1 Gy of alpha radiation. The 24 miRNAs were significantly up- or down-regulated: mmu-let-7a-5p, mmu-let-7b-5p, mmu-let-7c-5p, mmu-miR-1224-5p, mmu-miR-125b-5p, mmu-miR-296-5p, mmu-miR-331-3p, mmu-miR-3473b, mmu-miR-3960, mmu-miR-3963, mmu-miR-466i-5p, mmu-miR-494-3p, mmu-miR-5126, mmu-miR-6360, mmu-miR-6366, mmu-miR-6378, mmu-miR-6769b-5p, mmu-miR-6937-5p, mmu-miR-7005-5p, mmu-miR-7042-5p, mmu-miR-7047-5p, mmu-miR-709, mmu-miR-8110, mmu-miR-8117). These results indicate that exposure of osteoblastic cells to alpha particles leads to unique expression of miRNAs and it may give the cell radiosensitive environment.
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Project description:We performed RNA sequencing on the fetal portion of murine placentas isolated at gestational day (GD) 18, 8 days after dams are exposed to a single intravascular administration of either pooled murine-conserved HEamiRNAs (50 μg of pooled equimolar quantities of mmu-miR-222-5p, mmu-miR-187-5p, mmu-mir-299a, mmu-miR-491-3p, miR-760-3p, mmu-miR-671-3p, mmu-miR-449a-5p and mmu-miR-204-5p mimics) or control scrambled miRNAs.
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Project description:Non-thermal plasma, a partially ionized gas, holds significant potential for clinical applications, including wound healing support, oral therapies, and anti-tumour treatments. While its applications shown promising outcomes, the underlying molecular mechanisms remain incompletely understood. We thus applied non-thermal plasma to mouse auricular skin and conducted non-coding RNA sequencing, as well as single-cell blood sequencing. In a time-series analysis (5 time points spanning 2 hours), we compared the expression of microRNAs in the plasma-treated left ears to the unexposed right ears of the same mice as well as to the ears of unexposed control mice. Our findings indicate specific effects in the treated ears for a set of five miRNAs: mmu-miR-144-5p, mmu-miR-144-3p, mmu-miR-142a-5p, mmu-miR-223-3p, and mmu-miR-451a. Interestingly, miR-223-3p also exhibited an increase over time in the right non-treated ear of the exposed mice, suggesting systemic effects. Notably, this miRNA, along with mmu-miR-142a-5p and mmu-miR-144-3p, regulates genes and pathways associated with wound healing and tissue regeneration (namely ErbB, FoxO, Hippo, and PI3K-Akt signalling). This co-regulation is particularly remarkable considering the significant seed dissimilarities among the miRNAs. Finally, single blood cell sequencing revealed the downregulation of 12 from 15 target genes in B-cells, Cd4+ and Cd8+ T-cells. Collectively, our data provide evidence for a systemic effect of non-thermal plasma.
2023-07-12 | GSE236788 | GEO
Project description:This SuperSeries is composed of the SubSeries listed below. Non-thermal plasma, a partially ionized gas, holds significant potential for clinical applications, including wound-healing support, oral therapies, and anti-tumour treatments. While its applications showed promising outcomes, the underlying molecular mechanisms remain incompletely understood. We thus apply non-thermal plasma to mouse auricular skin and conducted non-coding RNA sequencing, as well as single-cell blood sequencing. In a time-series analysis (five timepoints spanning 2 hours), we compare the expression of microRNAs in the plasma-treated left ears to the unexposed right ears of the same mice as well as to the ears of unexposed control mice. Our findings indicate specific effects in the treated ears for a set of five miRNAs: mmu-miR-144-5p, mmu-miR-144-3p, mmu-miR-142a-5p, mmu-miR-223-3p, and mmu-miR-451a. Interestingly, mmu-miR-223-3p also exhibits an increase over time in the right non-treated ear of the exposed mice, suggesting systemic effects. Notably, this miRNA, along with mmu-miR-142a-5p and mmu-miR-144-3p, regulates genes and pathways associated with wound healing and tissue regeneration (namely ErbB, FoxO, Hippo, and PI3K-Akt signalling). This co-regulation is particularly remarkable considering the significant seed dissimilarities among the miRNAs. Finally, single-cell sequencing of PBMCs reveals the downregulation of 12 from 15 target genes in B-cells, Cd4+ and Cd8+ T-cells. Collectively, our data provide evidence for a systemic effect of non-thermal plasma.
2023-07-12 | GSE236802 | GEO
Project description:The mouse mSCC-20 cell line was transfected with 5nM of mmu-pre-miR-193b-3p, pre-miR-365a-3p or pre-miR-NC1. Total RNAs were extracted 30 h after transfection and hybridized on microarrays. One color experiment with 3 experimental conditions : miR-NC1- (n=4), miR-193b-3p- (n=2) and miR-365-3p- (n=2) transfected cells, corresponding to a total of 8 samples.
2014-02-03 | E-GEOD-52381 | biostudies-arrayexpress
Project description:Mycoestrogens are derived from mold and can interfere with female reproduction. Mycoestrogen zearalenone (ZEA) is a common food contaminant in levels of ppb ~ low ppm. Previously we demonstrated disrupted mouse placental development by 40 ppm ZEA diet. MicroRNAs are sensitive to xenobiotics and have been implicated in placental physiology and pathology. We hypothesized that ZEA could dysregulate microRNA expression in the mouse placenta. Gestation day 13.5 (D13.5) placentas from young mice treated with 0 ppm (control), 4 ppm, and 40 ppm ZEA diets were analyzed for microRNA profiling using microRNA array. The top 20 most highly expressed microRNAs in the D13.5 control placentas are predicated to target genes involved in important signaling pathways that are critical for maternal-fetal communications, such as protein processing in endoplasmic reticulum, endocytosis, and regulation of actin cytoskeleton. Using criteria of Log2FC ≥ 1 and Log2FC ≤ -1 (linear 2 fold change (FC)), a false discovery rate adjusted p-value ≤ 0.05, and average reading > 100 (top 20% most abundant microRNAs), R package limma identified 8 differentially expressed miRNAs (mmu-miR-133b-5p, mmu-miR-7028-5p, mmu-miR-294-3p, mmu-miR-3970, mmu-miR-20b-5p, mmu-miR-7683-3p, mmu-miR-291b-3p, mmu-miR-369-3p) in the 40 ppm ZEA group that included all 4 differentially expressed miRNAs in the 4 ppm ZEA group. Some of these differentially expressed microRNAs have been shown in vitro to have important functions in placental growth and maternal-fetal transport. These data imply roles of placental microRNAs in regulating expression of genes critical for placental function in vivo and in sensing environmental contaminants.
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