"Leprosy bacteria use 'biological alchemy'-Infectious bacteria have for the first time been caught performing "biological alchemy" to transform parts of a host body into those more suited to their purposes...The study...showed leprosy-causing bacteria turning nerves into stem cells and muscle...Prof Chris Mason, a specialist in stem cell research at University College London, said: "The ability of bacteria to convert one mammalian cell type to another is 'alchemy' by nature on a grand scale..."
This image shows telomeres (yellow), protective caps on the ends of chromosomes, moving to the outer edge of a cell's nucleus (blue). Salk researchers found that the telomeres anchor to the nuclear envelope after the cell duplicates its DNA during division, which may help organize the chromosomes as the cell splits into two daughter cells.
Caption: Macrophage engulfing TB bacteria. Coloured scanning electron micrograph (SEM) of a macrophage white blood cell (red) engulfing a tuberculosis (Mycobacterium tuberculosis) bacterium (yellow). This process is called phagocytosis. Macrophages are cells of the body's immune system. They phagocytose and destroy pathogens, dead cells and cellular debris. Magnification: x750 when printed at 10 centimetres tall.