Believe it or not, scientists are still successfully searching for and finding new types of stem cells. Among the latest curious finds is the result of research by scientists from Stanford University (USA), who discovered bone stem cells. Theoretically, new bones can be grown from them to replace broken or completely lost ones.
Finding these cells was not an easy task due to the fact that although their existence was predicted in theory, scientists did not understand for a long time what and where to look. Because the methods used to isolate similar cells in experimental mice have not been applied in humans. I had to study the gene expression profiles of cells that are located at the ends of bones in mice and in humans, until the first similarities and patterns appeared. And when the first markers were found, things went well.
Scientists managed to grow a "bush" from a bone stem cell, a collection of stem cells that was ready to grow further to become bone tissue or cartilage. Depending on the conditions in which they were placed, they began to transform and grow in one specific direction - it will not be difficult for doctors to apply such a convenient remedy in practice. It is believed that with their help it will be possible to cure osteoporosis and arthritis, replacing worn-out tissue with new, healthy counterparts.
If you dream a little, then from such a convenient material you can make "ties" to connect and heal broken bones. Or grow ready-made cartilage and bones for reconstructive surgery and replacement of damaged areas. So far, Stanford University is considering the discovery as a scientific issue, not an applied medical one. New stem cells are important for understanding the structure and function of the human bone apparatus, and its treatment is a valuable side effect.