Cardiovascular diseases, along with cancer, are the leading causes of death worldwide. Although modern pharmacological treatment of various cardiomyopathies can slow the development of myocardial dysfunction, they have limited effectiveness in patients with end-stage disease. Many researchers believe that heart transplantation is the only radical treatment in this case. However, the lack of donors and the high operation cost require careful selection of surgical candidates. With the introduction of molecular and cell biology into medical practice, today, stem cell therapy can become an alternative method of nonsurgical restoration of myocardial functions. The most studied and attractive is the use of mesenchymal stem cells (MSCs). MSCs differ from hematopoietic stem cells used as support for hematopoiesis in high-dose chemotherapy by the following features: pronounced trophic effect, immune tolerance, the ability to suppress alloreactivity and autoimmune disorders. An important stage in the implementation of cell therapy is the creation of a cell biobank of MSCs. In A.F.Tsyb Medical Radiological Research Center, this work has been carried out since1984. Asignificant number of experimental studies have been carried out, confirming the possibility of clinical implementation of this approach. A method for obtaining stable cultures of MSCs and cardiomyoblasts from bone marrow cells was developed and approvals were obtained. Experimental studies of cell therapy are also being conducted to overcome anthracycline-induced cardiotoxicity in cancer patients.This article is devoted to practical application of MSC-based therapy, in particular, in cancer patients with cardiotoxicity, as well as to the issues of creating a cell biobank for treatment with MSCs.