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In multicellular organisms, stem cells are undifferentiated or partially differentiated cells that can change into various types of cells and proliferate indefinitely to produce more of the same stem cell. They are the earliest type of cell in a cell lineage. [1]
Stem-cell therapy has become controversial following developments such as the ability of scientists to isolate and culture embryonic stem cells, to create stem cells using somatic cell nuclear transfer, and their use of techniques to create induced pluripotent stem cells.
Stem cell, an undifferentiated cell that can divide to produce some offspring cells that continue as stem cells and some cells that are destined to differentiate (become specialized).
Adult stem cells are undifferentiated cells, found throughout the body after development, that multiply by cell division to replenish dying cells and regenerate damaged tissues. Also known as somatic stem cells (from Greek σωματικóς, meaning of the body), they can be found in juvenile, adult animals, and humans, unlike embryonic stem ...
Stem cells offer promise for new medical treatments. Learn about stem cell types, current and possible uses, and the state of research and practice. By Mayo Clinic Staff
I. Introduction: What are stem cells, and why are they important? Stem cells have the remarkable potential to renew themselves. They can develop into many different cell types in the body during early life and growth. Researchers study many different types of stem cells.
Stem cells are cells of the body (somatic cells) which can divide and become differentiated. [1] When an organism grows, stem cells specialize, and take specific functions. For instance, mature tissues like skin, muscle, blood, bone, liver, nerves, all have different types of cells.
What are stem cells, and why are they important? What are the unique properties of all stem cells? How do you culture stem cells in the laboratory? How are stem cells used in biomedical research and therapies? How does NIH support stem cell research?
Stem cells are special cells that can turn into different types of cells. In a developing embryo, they can develop into any type of cell. Once the body is grown, they can develop into specific cell types, to replace old or damaged cells.
Embryonic stem cells (ESCs), derived from the blastocyst stage of early mammalian embryos, are distinguished by their ability to differentiate into any embryonic cell type and by their ability to self-renew. It is these traits that makes them valuable in the scientific and medical fields.