I just learned about the phenomenon of 'cell fusion' in which two diploid somatic cells can combine into some aneuploid cell in vitro and proceed to proliferate in culture. Apparently this can even happen interspecifically. My question is, what stops cells that grow naturally in the body from fusing all the time and creating abnormal cells?
Or, does this happen somewhat often and produce potentially cancerous cells, which are then destroyed by the body's normal regulatory mechanisms (I guess it could slip these as well and turn into a problem).
Could this be why we normally have many benign growths over the course of an animal's lifetime?
Any related reading would be super appreciated, thanks!