COVID caused cancer tumours to shrink in mice

The surprising finding based on research conducted on mice opens up new possibilities for cancer treatment

A fascinating new study, published in the Journal of Clinical Investigation, has revealed an unexpected potential benefit of severe COVID infection: it may help shrink cancer.

This surprising finding, based on research conducted in mice, opens up new possibilities for cancer treatment and sheds light on the complex interactions between the immune system and cancer cells—but it certainly doesn't mean people should actively try to catch COVID.

The data outlining the importance of the immune system in cancer is considerable and many drugs target the immune system, unlocking its potential, an important focus of my own research.

The study here focused on a type of white blood cell called monocytes. These immune cells play a crucial role in the body's defense against infections and other threats. However, in cancer patients, monocytes can sometimes be hijacked by tumor cells and transformed into cancer-friendly cells that protect the tumor from the immune system.