What is stem cell therapy on medical treatment?
What is stem cell therapy, what do stem cells do, and how does it work? Doctor
David
Greene
Orthopedic
Surgeon has mastered the latest techniques in stem cells therapies in the USA and brings you all of this.
Stem cell therapy is one of the new terms introduced in the field of medical science. It has received a lot of coverage around the world. In this underlined article Doctor David Greene is discussing that what this therapy is all about and how does it work? Let us start by defining this system in detail.
It is all about replacing the damaged and ill cells with new ones to cure chronic diseases. These cells are undifferentiated cells that are selfrenewed and can develop into three types of tissues.
The
embryonic
cells
are
derived from the earlier stages of an embryo which can then be differentiated into adult cell types.
These cells react consistently under a microscope but once injected into the body, their behavior is unpredicted. They are very much beneficial for research purposes but their use is considered to be controversial.
Adult stem cell therapy exists in post-fetal animals. Examples are such cells that turn out to be red or white blood cells.
It can be mesenchymal as well that grow into many other types of tissues like tendon, ligament, bone, liver, heart, or nerve cells, etc.
The sources of adult stem cells are bone marrow, brain tissues, muscles, and fats. Among these, bone marrow and umbilical blood have a maximum tendency to become red or white blood cells.
Let us now discuss different types of this therapy. These include allogenic, xenogenic, and autologous. Allogenic is the type in which cells come from a donor of the same species.
As these do not have any standard
surface
of
cells
markers triggering an immune response, they can be used without the fear of being rejected by the tissues of the host.
Xenogenic cells are taken from the donor of another species. There are chances of these cells being rejected but due to some particular characteristics, they may survive in the body
Now the question may arise in the minds that how does it work? The most common function of stem cells is to differentiate into different tissues. At the same time, they have other abilities which can be very healing and beneficial.
Healing is stimulated with the help of growth factors that are produced by stem cells. They also stimulate other cells to repair the damaged tissues.
Orthopedic Surgeon David Greene says these are triggered into the body in areas where there is some kind of injury. The basic purpose of injecting these stem cells is to target the injury.
These are responsible for less than half of the tissues which are newly formed. The rest of the repair is done by other tissues present in the body.
Hence a small number of these are injected. If a large number of cells will be injected, then it may interfere with the healing as some of the injected cells may die during the process and would need to be removed.
Under
ideal
conditions,
it
would
respond and healing would take place.
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