A newly recognized set of T helper cells seems to guard against aging by eliminating harmful senescent cells. Their presence in supercentenarians suggests they may be a key to maintaining a healthier, age-balanced immune system.
The significance of this discovery became clearer when a Japanese study on supercentenarians, meaning individuals who live well past 100, found that this same T helper cell subset was abundant in their immune systems. Prof. Monsonego now believes the... [2822 chars]