New Advancements in DNA technology: 1 - Tumor necrosis factor- a cell signaling protein (cytokine) involved in systemic inflammation and is one of the cytokines that make up the acute phase reaction 2 - Interleukin-2 - Interleukin-2 is an interleukin, a type of cytokine signaling molecule in the immune system. It is a protein that regulates the activities of white blood cells that are responsible for immunity. 3 - Prourokinase - thesinglechainproenzymecleavedbyplasmintoformu-plasminogen activator (urokinase);itisslowlyactivatedinthepresenceoffibrinclotsandisusedfortherapeuticthrombolysis. 4 - Taxol - a compound, originally obtained from the bark of the Pacific yew tree, that has been found to inhibit the growth of certain cancers. 5 - Interferon -Interferons are a group of signaling proteins made and released by host cells in response to the presence of several pathogens, such as viruses, bacteria, parasites, and also tumor cells.