Transmission electron micrograph of a mesenchymal stem<unk>  displaying typical ultrastructural characteristics.<unk> s are progenitor<unk> s that arise from mesenchymal stem<unk> s (MSC) in the bone marrow. They have the ability to differentiate into osteoblasts or chondrocytes depending on the signalling molecules they are exposed to, giving rise to either bone or cartilage respectively.<unk> s are important for bone formation and maintenance.
Osteochondroprogenitor cell
Cancer-associated fibroblast
Progenitor cell
Cancer stem cell
Osteoclast
Neural stem cell
Dental pulp stem cell
Hemangioblast