in Balaji Superspeciality Hospital the department of stemcell and immunotherapy works on Stem cell therapy using mesenchymal stem cells (MSC) is considered very safe, with few side-effects. Potential concerns with MSC therapy include inflammatory reactions at the injection site (very rare) and development of cancer from the injected MSC (not shown convincingly to occur). When MSC are derived from an unrelated donor, there is the potential for transmission of infectious agents from the donated MSC, though the risks can be minimized by careful screening of donors. At the CIRM, donor animals are carefully screened for potential infectious agents before their cells are used for stem cell therapy.