Stem cells are said to be able to treat many diseases and possibly even cancer. Adult stem cells can help people with lupus, Parkinson's disease and sickle cell anemia. You can find more information here: stemcellcures.org/stemcellbasics.html.
Osiris Therapeutics (Columbia, Maryland) is conducting three different Phase 2 clinical trials with a product from adult mesenchymal cells (called Prochymal). The repair of lung tissue in patients with chronic obstructive pulmonary disease (COPD). Osiris is also conducting Phase 3 testing of Prochymal for acute graft versus host disease (GvHD) and Crohn's disease.
The limbus is the marginal region of the cornea of the eye that contains stem cells. Stem cells from the limbus are called limbal stem cells, and they normally serve to replace cells to maintain the cornea. Limbal stem cells are being tested as possible treatments for human eye conditions.
Currently, scientists are testing whether limbal stem cells can help repair damage to the cornea and whether they can help replace cells that are lacking due to limbal stem cell deficiency. Scientists are testing the abilities of many different types of stem cells to treat certain diseases. You can search for clinical trials using stem cells (or other methods) to treat a specific disease at ClinicalTrials.gov.
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