Bladder cancer treatment research. Fluorescence light micrograph of tissue from a bladder thirty days after surgery to remove a tumour. The bladder wall is illuminated with activated mesenchyme (coloured areas, upper left), showing the potential for the bladder to heal and regrow. The function of mesenchyme cells is to rebuild the extracellular matrix and the network of blood vessels (the fibrovasculature). This approach is part of an area known as molecular studies, which aims to identify regeneration-triggering proteins or molecular signals and pathways that restore tissue architecture and function. This may lead to better ways to help patients recover after surgery, radiation, or chemotherapy. This tissue is from a mouse bladder.