NATIONAL INSTITUTES OF HEALTH / SCIENCE PHOTO LIBRARY NATIONAL INSTITUTES OF HEALTH / SCIENCE PHOTO LIBRARY
Experimental mouse. Nude breed of mouse, Mus muscula, which has been specially bred for use in medical experiments. This mouse does not have a functioning thymus gland, meaning that some of the cells in its immune system cannot mature. These T cells would normally attack foreign tissue and regulate the activity of other types of immune cells. Due to its deficiency, this mouse can have samples of cancer-causing chemicals (carcinogens), human tumours or human tissues transplanted into their bodies. The development of any cancers, and the effect of drugs upon them, can then be observed.
Model release not required. Property release not required.