EN
For many years research on tumour development focused exclusively on the functions of cancer cells. Less attention was paid to tumour-associated cells, which form the tumour microenvironment. Nowadays we know that inflammatory infiltration cells associated with tumour proliferation may have a pro-tumour or an anti-tumour effect. Current studies are focused on interaction (cross-talk) between cells in the tumour microenvironment. Myeloid suppressor cells (MDSCs) and lymphocytes T are special groups of cells associated with tumour. Interaction between cancer cells, MDSCs and lymphocytes T leads to the development of an immunosuppression network that prevents effective combat against cancer cells and creates conditions favourable for tumour progression, migration and metastasis. The understanding of the crosstalk between cancer cells and immune cells has become the main task of scientists and oncologists.