As mouth cancer can strike in a number of places, including the lips, tongue, gums and cheek, and given that early detection is so crucial for survival, itâs extremely important that we all know what to look out for. 1  Ulcers which do not heal in three weeks.  Red and white patches in the mouth.
pluÂ·ripÂ·oÂ·tent. adj. Relating to or being a cell that is capable of differentiating into cells of any type of tissue except placental tissue.
There are several sources of stem cells. Pluripotent stem cells can be isolated from human embryos that are a few days old. Cells from these embryos can be used to create pluripotent stem cell lines âcell cultures that can be grown indefinitely in the laboratory.Pluripotent stem cell lines have also been developed from fetal tissue (older than 8 weeks of development).In late 2007, scientists identified conditions that would allow some specialized adult human cells to be reprogrammed genetically to assume a stem cell-like state. Pluripotent stem cells can give rise to any type of cell in the body except those needed to support and develop a fetus in the womb. 2  Stem cells that can give rise only to a small number of different cell types are called multipotent.