Saturday 19 December 2020

What are stem cells and why are they important?

 The idea of a miracle cure and bodies healing themselves holds a particular fascination. Stem cell research brings regenerative medicine a step closer, but many of the ideas and concepts remain controversial. So what are stem cells, and why are they so important?

Stem cells are a type of cell that can develop into many other types of cell. Stem cells can also renew themselves by dividing, even after they have been inactive for a long time.

The human body requires many different types of cell to function, but it does not produce each cell type fully formed and ready to use. Instead, it produces stem cells that have a wide range of possible functions. However, stem cells need to become a specific cell type to be useful.

When a stem cell divides, the new cells may either become another stem cell or a specific cell, such as a blood cell, a brain cell, or a muscle cell.

Scientists call a stem cell an undifferentiated cell because it can become any cell. In contrast, a blood cell, for example, is a ‘differentiated’ cell, because it is already a specific kind of cell.

 Source: Medical News Today

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