Stem cells are a class of undifferentiated cells that are able to differentiate into specialized cell types. Commonly, stem cells come from two main sources: Embryos formed during the blastocyst phase of embryological development (embryonic stem cells) and Adult tissue (adult stem cells.)
Why are they important?
In many tissues, they serve as a sort of internal repair system, dividing essentially without limit to replenish other cells as long as the person or animal is still alive. When a stem cell divides, each new cell has the potential either to remain a stem cell or become another type of cell with a more specialized function, such as a muscle cell, a red blood cell, or a brain cell. Basically they can replace any damaged cell of any specific function or purpose and take over that function.
What are some unique properties?
All stem cells—regardless of their source—have three general properties: they are capable of dividing and renewing themselves for long periods; they are unspecialized; and they can give rise to specialized cell types. And carry out the function of that cell it is replacing.
Research into stem cells grew out of the findings by Ernest A. McCulloch and James E. Till at the University of Toronto in the 1960s. New research is continuing to uncover the amazing abilities of the stem cells.
Types of Stem Cells
There are three main types of Stem Cells:
1. embryonic stem cells
2. adult stem cells
3. Induced Pluripotent Stem Cells
Embryonic Stem Cells
Embryonic stem cells, as their name suggests, are derived from embryos. Most embryonic stem cells are derived from embryos that develop from eggs that have been fertilized in vitro—in an in vitro fertil...
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...ar, we are interested in discerning the current technological state and potential growth of adult stem-cell-based applications as compared to embryonic-stem-cell-based applications. Additionally, we are interested in looking forward to emerging advancements in stem cell technology and evaluating the potential impact these advancements could have on the development of stem-cell-based products.”
Stem cells and the economy
Stem cell research these days is pretty expensive.However many people think that one day this will save Americans a lot in healthcare costs. Advocates of stem cell research also think that it will be good for the economy because it will keep more scientists employed in laboratories. It will also help people save tons of money on prescription drugs. Ultimately, Stem cell research can help create many jobs which in result improves the economy.
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