Based on the title above, our topic for this article right now is about Human Stem Cell Research Definition.
from the last article I’ve already mention about the definition of stem cell research, eventough it’s just an opening article….:)
In this article I would like to discuss especially about Human Stem Cell Research Definition, according to the word include in the title, off course the definition of the stem cell research that we will discuss here is especially in a human, because stem cell can be from animals too.
Human embryonic stem cell: Also known as a human pluripotent stem cell, one of the “cells that are self-replicating, are derived from human embryos or human fetal tissue, and are known to develop into cells and tissues of the three primary germ layers. Although human pluripotent stem cells may be derived from embryos or fetal tissue, such stem cells are not themselves embryos.” (From the National Institutes of Health Guidelines for Research Using Human Pluripotent Stem Cells)
We have already known that there are two basic types of stem cells, whis is embryonic stem cells, can be taken from aborted fetuses or fertilized eggs that are left over from in-vitro fertilization (IVF), which is very usefull for research and medical purposes because they can produce cells for almost every tissue in the body, and adult stem cells, these type of stem cells are not as good as embryonic stem cells for research purposes because they are specific to certain cell types, such as blood, intestines, skin and muscle.
An adult stem cels is an undifferentiated cell which can be found among differentiated cells in a tissue or organ. It can renew itself and can be differentiate to yield some or all of the major specialized cell types of the tissue or organ. Research on adult stem cells has a very great deal of excitement. The researcher and scientists have found adult stem cells in many more tissues than they once thought possible. This finding make researchers and clinicians to ask whether adult stem cells could be used for transplants. In fact, adult hematopoietic, or forming of the blood, stem cells from bone marrow have been used in transplants for more than 40 years. Scientists now have an evidence that stem cells exist in the brain and the heart. If the differentiation of adult stem cells can be controlled in the laboratory, these cells may become the basis of transplantation-based therapies.