Project description:Perineural invasion (PNI) is a unique biological feature of pancreatic cancer and is a key cause of pancreatic cancer metastasis, recurrence and poor postoperative survival, but its mechanism is largely unclarified. Clinical sample analysis and endoscopic ultrasonographic elasticity scoring indicated that cancer-associated fibroblasts (CAFs) are closely related to the occurrence of PNI. Furthermore, CAF-derived extracellular vesicles played an extremely important role in PNI in a dorsal root ganglion (DRG) coculture model and sciatic nerve model. Next, we demonstrated that CAFs promoted PNI via extracellular vesicle transmission of PNI-associated transcript (PIAT). To determine how CAF EVs exert its function, we performed mRNA sequencing on PANC-1 treated with CAFs-derived EVs
Project description:EV-packaged PIAT mediates EGR1, NTRK1 and SMAD7 mRNA stability in a YBX1-dependent manner. To explore whether YBX1 enhances EGR1, NTRK1 and SMAD7 mRNA stability in an m5C-dependent manner, we conducted m5C-seq in PANC-1 cells to map the m5C methylome of PANC-1 cells treated with CAF-derived EVs.
Project description:Perineural invasion (PNI) is a unique biological feature of pancreatic cancer and is a key cause of pancreatic cancer metastasis, recurrence and poor postoperative survival, but its mechanism is largely unclarified. Clinical sample analysis and endoscopic ultrasonographic elasticity scoring indicated that cancer-associated fibroblasts (CAFs) are closely related to the occurrence of PNI. Furthermore, CAF-derived extracellular vesicles played an extremely important role in PNI in a dorsal root ganglion (DRG) coculture model and sciatic nerve model. To explore the lncRNA packaged in CAFs EVs transmitted to PANC-1, we conducted the lncRNA profile of PAN-1 treated with CAFs derived EVs.
Project description:Perineural invasion (PNI) is a unique biological feature of pancreatic cancer and is a key cause of pancreatic cancer metastasis, recurrence and poor postoperative survival, but its mechanism is largely unclarified. Clinical sample analysis and endoscopic ultrasonographic elasticity scoring indicated that cancer-associated fibroblasts (CAFs) are closely related to the occurrence of PNI. Furthermore, CAF-derived extracellular vesicles played an extremely important role in PNI in a dorsal root ganglion (DRG) coculture model and sciatic nerve model. Next, we demonstrated that CAFs promoted PNI via extracellular vesicle transmission of PNI-associated transcript (PIAT). To explored the potential mRNA interacted with YBX1, we we performed YBX1 RNA immunoprecipitation–sequencing (RIP-seq).
Project description:Identification of transcriptional profile of several genes involved in diabetes in islet-derived extracellular vesicles (Evs). Recently, EVs are identified as a new mechanism in cell-to-cell communication by transfer of protein and genic information (mRNA, microRNA). Their role is under investigation in immunology, stem cell and cancer, but not in islets and diabetes. The aim of this experiment is to identify mRNA transcripts (in particular, mRNA transcripts involved in diabetes pathophysiology) present in islet Evs.
Project description:Perineural invasion (PNI) is a unique biological feature of pancreatic cancer and is a key cause of pancreatic cancer metastasis, recurrence and poor postoperative survival, but its mechanism is largely unclarified. Clinical sample analysis and endoscopic ultrasonographic elasticity scoring indicated that cancer-associated fibroblasts (CAFs) are closely related to the occurrence of PNI. Furthermore, CAF-derived extracellular vesicles played an extremely important role in PNI in a dorsal root ganglion (DRG) coculture model and sciatic nerve model. To explore the lncRNA packaged in CAFs EVs, we conducted the lncRNA profile of CAFs derived EVs.