Word: helper
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...viruses, however, are not finished yet. Those still multiplying inside the body's cells are momentarily safe from scavengers and antibodies, but the free lunch is over quickly. While the B cells are being activated, other helper T cells have been creating an army of killer T cells. These killers recognize the flu-ridden cells because, like macrophages, infected cells display a bit of viral antigen on their outer membranes. Says Coffman: "For many viral infections, the most important response is the killer T cell. Viruses live inside cells, so it's essential to kill not only the viruses themselves...
Ever since the pioneering transplant operations of the 1960s, the chief obstacle to the full recovery of transplant patients has been the immune system's xenophobic zeal to destroy anything that is foreign to the body. Once the alien threat has been identified, agents known as helper T cells unleash the powerful immune response that attacks grafted tissue. During the 1970s, physicians found that they could minimize this reaction by more closely matching the MHC proteins, or immunological "dog tags," of a donor with those of the recipient. Even so, they could not completely eliminate the rejection response. To make...
...Nicky has to face the harsh realities of being poor and "slow" in Pittsburgh. He is a garbage "helper" for a private truck and receives low wages and inadequate benefits. Neighborhood thugs of all sorts find trusting Nicky to be easy prey...
...writing. Along the way, she seems to have developed a sense of what loneliness and isolation can do, even to the most simple, hardworking folk. Such people, earnest and a little unhinged, began popping up in her fiction: a spinster trying to manage a remote farm, a young female helper and a bizarre secret concealed on the premises (The Well); an old man dreaming up plans to disrupt the nursing home into which he has been dumped (Mr. Scobie's Riddle...
...cells and the Pac-man-like macrophages rush to the scene to gobble up infected cells. After about a week, if this first-tier defense fails to control the threat, says Fields, "you bring out the guided missiles." These are antibodies -- produced by B cells upon the order of helper T cells -- that are custom-designed to home in on certain antigens, distinctively shaped proteins that characterize a particular type of virus, and destroy the enemy or render it harmless...