If you reverse the biological clock of every cell of the human body, it will be the same as one of the varieties of stem cells. It begins with them the growth of multicellular organisms, stem cells can renew themselves to form new stem cells, divided by mitosis and differentiate into cells of different tissues and organs. Researchers from the University of Queensland was able to open a new kind of stem cells that can turn into tissue with embedded blood vessels.
Initially, the scientists were completely different problem. They were isolated from placental stem cells that, as expected, was responsible for the development and vystlannye blood vessels by endothelial cells. But when scientists tried to grow them, they realized that besides them there is something else. The composition of the nutrient medium was also detected in mesenchymal cells involved in the development of bone, cartilage and adipose tissue. At some point, scientists even began to doubt — not whether they have made gross errors in the course of the experiment.
“At first we thought we made a mistake and the process of isolation passed, imperfectly, from-for what in the culture medium were also mesenchymal cells. But after we were cleaned isolated stem cells from the outside, we noticed that they produce not only endothelial, but also mesenchymal cells. And then we realized that it’s not our fault, because we isolated them from the placenta literally by the piece. Nothing superfluous to get in there just couldn’t,” says the study’s author Kiarash of Corotoman.
This discovery has allowed to identify a completely new type of stem cells that scientists called “metastaticalkie stem cells”. In fact, these cells are the source of two other types of stem cells, so researchers often use in their relation to the expression “double stem cell”. If earlier the staff of the laboratories had to select each of the varieties of derivatives of this type of cells separately, now there is no such necessity, because metastaticalkie cells have two functions for the price of one.
Scientists believe that metastaticalkie stem cells in the future can find application in various fields of medicine. For example, they can be used to mend broken bones, damaged cartilage, blood vessels. The advantages of these cells is that they are capable of producing the fabric with integrated capillaries, which is extremely important for doctors, because in other ways like to achieve is impossible. Research results you can read in the journal Stem Cell Reports.
Scientists have discovered a new kind of stem cells
Sergey Grey