Embryonic Stem Cells
Human embryonic stem cells (hESCs) are pluripotent cells derived from the inner cell mass of the blastocyst. They have the ability to renew themselves and to differentiate into a variety of different cell types that are found in the body. Unlike somatic or ‘adult’ stem cells, hESCs proliferate indefinitely. This, together with their ability to differentiate into most adult cell types, has resulted in the preferred use of these cells for research and therapeutic applications, as they represent a potentially indefinite source of therapeutic cells. Any cell therapy derived from hESCs would be allogeneic by nature. Some current studies involve the potential therapeutic application of hESCs for spinal cord injury, age-related macular degeneration (AMD), cardiovascular diseases, and diabetes. Among the start up cell therapy companies, Geron and Advanced Cell Technologies have pioneered clinical trials using cells differentiated from hESCs.
Read more about this topic: Cell Therapy
Famous quotes containing the words embryonic, stem and/or cells:
“Quintilian [educational writer in Rome around A.D. 100] thought that the earliest years of the childs life were crucial. Education should start earlier than age seven, within the family. It should not be so hard as to give the child an aversion to learning. Rather, these early lessons would take the form of playthat embryonic notion of kindergarten.”
—C. John Sommerville (20th century)
“Apples? New Hampshire has them, but unsprayed,
With no suspicion in stem end or blossom end
Of vitriol or arsenate of lead,
And so not good for anything but cider.”
—Robert Frost (18741963)
“They are sworn enemies of lyric poetry.
In prison they accompany the jailer,
Enter cells to hear confessions.
Their short-end comes down
When you least expect it.”
—Charles Simic (b. 1938)