Project description:Purpose: The goal of this study is to compare endothelial small RNA transcriptome to identify the target of OASL under basal or stimulated conditions by utilizing miRNA-seq. Methods: Endothelial miRNA profilies of siCTL or siOASL transfected HUVECs were generated by illumina sequencing method, in duplicate. After sequencing, the raw sequence reads are filtered based on quality. The adapter sequences are also trimmed off the raw sequence reads. rRNA removed reads are sequentially aligned to reference genome (GRCh38) and miRNA prediction is performed by miRDeep2. Results: We identified known miRNA in species (miRDeep2) in the HUVECs transfected with siCTL or siOASL. The expression profile of mature miRNA is used to analyze differentially expressed miRNA(DE miRNA). Conclusions: Our study represents the first analysis of endothelial miRNA profiles affected by OASL knockdown with biologic replicates.
Project description:Post-transcriptional regulation of gene expression by miRNAs likely makes significant contributions to mRNA abundance at the embryo-maternal interface. In this study, we investigated how miR-26a-5p and miR-125b-5p contribute to molecular changes occurring in the uterine luminal epithelium, which serves as the first site of signal exchange between the mother and developing embryo. To measure de novo protein synthesis after miRNA delivery to primary uterine luminal epithelial cells, we employed pulsed stable isotope labeling by amino acids (pSILAC). We found that both miRNAs alter the proteome of luminal epithelial cells, impacting numerous cellular functions, immune responses, as well as intracellular and second messenger signaling pathways. Additionally, we identified several features of miRNA-mRNA interactions that may influence the targeting efficiency of miR-26a-5p and miR-125b-5p. Overall, our study suggests a complex interaction of miR-26a-5p and miR-125b-5p with their respective targets. However, both appear to cooperatively function in modulating the cellular environment of the luminal epithelium, facilitating the morphological and molecular changes that occur during the intensive communication between the embryo and uterus at pregnancy.
2025-05-07 | PXD056243 | Pride
Project description:miRNA profiles in human follicular fluid
Project description:Purpose: The goal of this study is to compare exosomal small RNA transcriptome of HCT116 cells to identify the target of PRDX3 under basal or knock down conditions by utilizing miRNA-seq. Methods: miRNA profilies of siCTL or siPRDX3 transfected HCT 116 exosoems were generated by illumina sequencing method, in triplicate. After sequencing, the raw sequence reads are filtered based on quality.Sequence reads were mapped with the bowtie2 software tool, which yielded bam files. Mature miRNA sequences were used as references for mapping. Read counts mapped to a mature miRNA sequence were extracted from the alignment file using bedtools v2.25.0 and Bioconductor, which use the R statistical programming language. Read counts were used to determine the expression level of miRNAs. The CPM+TMM normalization method was used for between-sample comparison. Results: We identified known miRNA in species (miRDeep2) in the HCT116 exosome transfected with siCTL or siPRDX3. The expression profile of mature miRNA is used to analyze differentially expressed miRNA(DE miRNA). Conclusions: Our study represents the first analysis of HCT116 exosomal miRNA profiles affected by PRDX3 knockdown with biologic replicates.