What is the fine-grained topic of the following text: The aim of my project is the production of nanoparticles, called Nanoghosts (NGs), from mesenchymal stem cells (MSCs) and using them to load siRNAs and miRNAs involved in healing and inflammation of damaged or degenerate cartilage and bone tissues. Only return the topic.
Production and use of Nanoghosts (NGs) from mesenchymal stem cells for healing and inflammation of damaged cartilage and bone tissues.