What are Stem Cells?

Authors

Neonatal Research Center, Imam Reza Hospital, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.

Abstract

 
Stem cells are undifferentiated self regenerating multi potential cells. There are three types of stem cells categories by the ability to form after cells and correlated with the body’s development process.
Totipotent: these stem cells can form an entire organism such as fertilized egg.
Ploripotent: ploripotent cells are those that can form any cell in the body but cannot form an entire organism such as developing embryo’s totipotent cells become ploripotent
 Multipotent: Multi potent stem cells are those that can only form specific cells in the body such as blood cells based.
Based on the sources of stem cells we have three types of these cells:
Autologous: Sources of the patient own cells are (Autologous) either the cells from patient own body or his or her cord blood. For this type of transplant the physician now usually collects the periphery rather than morrow because the procedure is easier on like a bane morrow harvest it take place outside of an operating room, and the patient does not to be under general unsetting . Allogenic: Sources of stem cells from another donore are primarily relatives (familial allogenic) or completely unrelated donors.
Xenogenic: In these stem cells from different species are transplanted e .g striatal porcine fetal mesan cephalic (FVM) xenotransplants for Parkinson’s disease.
On sites of isolation such as embryo, umbilical cord and other body tissues stem cells are named embnyonic, cord blood, and adult stem cells. The scope of results and clinical application of stem cells are such as: Neurodegenerative conditions (MS,ALS, Parkinson’s, Stroke),
Ocular disorders- Glaucoma, retinitis Pigmentosa (RP), Auto Immune Conditions (Lupus, MS,R. arthritis, Diabetes, etc), Viral Conditions (Hepatitis C and AIDS), Heart Disease, Adrenal Disorders, Injury(Nerve, Brain, etc), Anti aging (hair, skin, weight control, overall well being/preventive), Emotional disorders, Organ / Tissue Cancers, Blood cancers, Blood diseases (Wiscott Aldrich’s, Syndrome, etc), We know that one cell produce all cells. We have one dream that one cell can treat all disease?
 
Key words: Multi potential cells, Stem cells.
 

Keywords