At the beginning of the 20th century, cultivation of animal and human cells in vitro was discovered to be possible. Since then, cell cultures have been widely used in scientific research and for the needs of regenerative medicine.
The human body consists of a large number of different cells. Some of them specialized to perform a specific function but lost the ability to divide. The other ones regularly divide and multiply. In vitro, only cells capable of multiplying can be cultivated. In the process of cultivation, cells divide and their number increases. After that, we make a cell preparation from the cells obtained and introduce it into the patient’s body to compensate for a lack of his/her own cells.