Migration Rate of Colo16 Cells Exposed to UV Light
http://college-application-essay-services157.mystrikingly.com/ Introduction:
Cells exposed to ultraviolet (UV) rays of light often supress signalling pathways associated with inflammation as well as the immune system and as a result of activating the p38 mitogen activated protein kinase (MAPK) pathway. Radiation from UV light is from the electromagnetic spectrum and can be divided into two primary wavelengths; UVA 320 – 400 nm and UVB 290 – 320 nm. UVA rays are more dominant than UVB, however both UVA rays reaching the subcutaneous layer of skin and UVB rays reaching the dermis are known to cause the development of skin cancers via damaging the DNA of skin cells (1, 2, 3).
The effect of UV light on cells can be measured by determining the time the cells take to migrate back to their normal positions after the creation of an artificial wound. An inexpensive and easy assay to perform to make such measurements is the scratch assay.
