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Semin Cell Dev Biol. 2002 Oct;13(5):369-76.

Stem cells in adult tissues.

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  • 1BD Technologies, Biotherapy Division, 21 Davis Drive, Research Triangle Park, NC 27709, USA.


In recent years the concept of a stem cell has evolved to encompass the hypotheses that stem cells exist within many adult tissues, and that a common 'interchangeable' progenitor cell may exist within the bone marrow capable of regenerating and repairing tissues throughout the body. As more knowledge is gained about stem cells, their potential roles in disease processes, including the development and progression of cancer, have moved to the forefront. The underlying hypothesis of this review is that cell fate is determined by a combination of intrinsic and extrinsic factors; growth and differentiation are regulated through intracellular integration of a multitude of signals initiated by internal and external stimuli. The development of successful stem cell based therapies may depend on experimental approaches that consider both the intrinsic and extrinsic factors that control cell fate.

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