In a possible breakthrough in the fight against cancer, scientists claim to have discovered evidence that the body's immune cells often share information about foreign substances with each other to keep off invaders. An international team, led by the Australian National University, has in fact found that immune cells responding to foreign substances or pathogens, are able to rapidly transfer their ability to recognise the invader to other immune cells.Harnessing this process may lead to new ways to treat cancerous tumours as well as strengthen the immunity in patients with weaker immune systems, say the scientists.Team leader Prof Chris Parish said, the discovery revolutionises our understanding of how the immune system works. It indicates that there is much more communication and sharing of information between cells of the immune system than was previously thought.