Project description:In this study, we used a barcoding-based synthetic long read (SLR) isoform sequencing approach (LoopSeq) to generate sequencing reads sufficiently long and accurate to identify isoforms using standard short read Illumina sequencers.
Project description:In this study, we used a barcoding-based synthetic long read (SLR) isoform sequencing approach (LoopSeq) to generate sequencing reads sufficiently long and accurate to identify isoforms using standard short read Illumina sequencers.
Project description:In this study, we used a barcoding-based synthetic long read (SLR) isoform sequencing approach (LoopSeq) to generate sequencing reads sufficiently long and accurate to identify isoforms using standard short read Illumina sequencers.
Project description:Glutaminyl cyclase (QC) activity in macrophage cells is correlated with the gene expression of MCP-2 and QC-catalyzed N-terminal pGlu formation of MCPs is required for macrophage migration and provide new insights into the role of QC in the inflammation process.
Project description:Comprehensive long-read transcriptome analysis uncovers alternative RNA processing feature and isoform diversity in ovarian cancer progression
Project description:Post-transcriptional processing has a crucial but still largely unresolved dynamic change and role during the malignant progression of ovarian cancer, especially due to the limited read length of widely used short-read RNA sequencing being not enough to capture the transcript diversity. Here, we performed both Iso and RNA sequencing on paired normal ovarian tissues, primary tumors, and metastatic lesions from patients with ovarian cancer. We generated a comprehensive isoform atlas containing over 41,000 full-length transcripts, including many previously unannotated isoforms with coding potential. Integrative analyses revealed extensive isoform-level remodeling across disease stages, involving alternative splicing and polyadenylation. These changes often occurred without concordant alterations at the gene level, emphasizing the importance of qualitative transcript regulation.
Project description:The quiescent center (QC) plays an essential role during root development by creating a microenvironment that preserves the stem cell fate of its surrounding cells. Strikingly, in order to retain root structure, QC cells only occasionally self-renew, displaying a proliferation rate far below that of all other cells within the root meristem. Previously, the APC/CCCS52A2 ubiquitine ligase and brassinosteroid signaling pathways have been found to antagonistically control Arabidopsis thaliana QC cell proliferation. Here, we demonstrate that both pathways converge on the ERF115 transcription factor that acts as a rate-limiting factor of QC cell division through transcriptional control of the autocrine phytosulfokine PSK5 peptide hormone. ERF115 marks QC cell division but is restrained through proteolysis by the APC/CCCS52A2 ubiquitine ligase, whereas QC proliferation is driven by brassinosteroid-dependent ERF115 expression. Combined, these two antagonistic mechanisms delimit the ERF115-PSK5 activity and QC renewal. Our results reveal a unique cell cycle regulatory mechanism that accounts for the low proliferation rate of QC cells within a surrounding population of highly mitotic active cells.