The presence of fat makes the immune surveillance systems fail, a group of cells whose function is to destroy cancer cells. Research, led by Trinity College in Dublin has discovered new links between obesity and cancer, which explain why the body's immune systems fail to fight cancer cells when there is an excess of fat. The study, published in the journal Nature Immunology, analyzes the causes why the presence of fat makes fail the immune surveillance systems, which are formed by Natural killer, a type of natural killer cells whose function is to destroy cancer cells.
People with excess weight are more likely to suffer from type 2 diabetes, cardiovascular diseases and a wide range of infections, in addition to the fact that up to 50% of certain cancers are attributed to this pathology. Of course, there should be more ways to understand the ways in which obesity causes cancer and leads to other diseases and, therefore, to develop new strategies to prevent its progression.