Stem Cell Lines
Much discussion can be found in the medical profession regarding stem cells and what are known as “stem cell lines”. What these lines consist of specifically are a genetic group of cells that have differentiated into various different tissues from one single group of initial stem cells. For harvesting purposes various different stem cells lines can come from virtually any tissue, and in many cases research into various lines is the primary focus for many researchers looking into any number of stem cell applications ranging from small tissue growths to even cloning entire organs or bodies.
Alternative sources for various stem cell lines are also being explored in order to try and fully realize the potential for stem cell development via adult stem cells as well. This includes the study of various tissues (including skin cells) and umbilical cord blood – a particular source of interest for many researchers as umbilical cord blood has proven to be a valuable source for potent stem cells.
The downside in terms of stem cell research on adult stem cell lines lies in the fact that cells harvested from even umbilical cord tend to have at least even partial differentiation towards a specific cellular structure or host. This means that any cells successfully obtained via an adult stem cell harvesting method will have the potential of being rejected by a host that may receive a cell line derived from some other individual. This is why in the past both totipotent and pluripotent stem cells harvested from embryonic tissue has been of much more interest to researchers given its ability to help more people and be accepted universally, however the ethical difficulties faced when utilizing this type of tissue are a strong barrier in its development.
Nevertheless the multipotent cells found in adult stem cells can, and have been, highly effective treatment methods for many people given the fact that even though they are partially differentiated already they still have the inherent nature to assist with the regenerative processes needed in the body. Additionally other methods such as iPS cells (short for induced pluripotent stem cells) where the genetic structure of a somatic cell that does not have the natural stem cell’s ability for repair is re-programmed into becoming a stem cell for treatment and repair purposes. These forms of stem cell lines have proven particularly effective for treatment of individuals that are the initial hosts of the cells as even though they are only multipotent at best the fact they originate from the host virtually eliminates any risk of rejection.
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