A study published in Science by the Champalimaud Foundation reveals a surprising new role for the immune system. During periods of low energy—such as intermittent fasting or exercise—immune cells step ...

Organ transplants save lives, but unfortunately rejection is a key hurdle. Now scientists have demonstrated a potential new way to prime a recipient’s immune system to accept a transplanted organ, by ...

Modifying the organ instead of the recipient isn’t a new idea, but it is an important one, said Jeffrey Platt, a transplantation biologist at the University of Michigan Medical School who was not ...

During the recent Covid-19 pandemic, the rate of serious illness and death was jarringly high in older populations. Why? Weakening immune systems — as we age, we become more vulnerable to infections, ...

During fasting or exercise, immune cells (red) migrate to the pancreas and stimulate glucagon-producing cells (orange) to regulate blood sugar, with cell nuclei shown in blue. “For decades, immunology ...