[Selection for a decrease in metastatic potential in a cell population of transplantable rat rhabdomyosarcoma RA-2]

The method of individual cloning was used for checking the reduction of metastatic potential (MP) in cell population of highly malignant rhabdomyosarcoma RA-2. In the course of 15 selection cycles MP was lowered by 10-15 times. These data enabled us to consider the MP value as a quantitative character of malignant cells with low heritability (the mean value of realized heritability coefficient is equal to 0.18).