Every biological system is naturally equipped with a defense mechanism to protect against abnormal changes caused by either local, environmental, or biochemical alteration. White blood cells (WBC) play the role of such a ‘soldier’ in our immune response. One type of WBC, known as macrophages, is the most efficient and specialized fighter since it is simultaneously equipped with the power of selective identification and elimination of foreign invaders, as well as the potency to repair wounds. Depending on their work distribution, macrophages are mainly comprised of two types, M1 and M2. M1 cells act as the ‘professional killer’, while M2 cells are more concentrated on healing activity.
Click here for original story, Researchers use gold nanorod scattering to identify immune system’s ‘killer and savior’
Source: Phys.org