Word: tumorous
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...past few years a second line of attack has also uncovered oncagenes as scientists have found genes in various tumor cells that can transform them into cancer cells. Presumably, each oncagene was instrumental in generating the tumor from which it was isolated...
...achievement of Milstein and Köhler was to fuse a tumor cell with a cell that produced a specific antibody. They thus created a hybrid that not only manufactured the antibody but multiplied as rapidly as the cancer cell. The resulting culture served as a miniature factory, churning out the desired antibody. Because every cell in the culture is an identical descendant, or clone, of the original hybrid, the antibody is pure and therefore a precise instrument. Says Milstein: "It al lows you to discriminate one molecule from another." Monoclonal antibodies can home in on targets ranging from...
...Robert C. Gallo, chief of laboratory tumor cell biology at the National Cancer Institute in Washington, who worked with Groopman in isolating HTLV-III in saliva, said yesterday that the implications of Groopman's work are serious...
...serendipitous finding ten years ago by Green made this procedure possible. While studying cultures of a mouse tumor, he found flourishing colonies of cells resembling those of the upper layer of living skin. Investigation showed that these epithelial cells grew because of the presence of fibroblasts, a type of cell common to the connective tissue that makes up the dermis. Green realized that the discovery had implications for burn patients: Cultured skin, derived from the victim, would not be rejected by the body's immune system. Another major advance came when Green discovered that a certain bacterial enzyme could...
...confusion is the state of language itself, language that has been bleached of its moral distinctions, turned neutral, value-free, "nonjudgmental." When that happens, moral discourse becomes difficult, moral distinctions impossible and moral debate incomprehensible. If abortion is simply "termination of pregnancy," the moral equivalent of, say, removing a tumor, how to account for a movement of serious people dedicated to its abolition? If homosexuality is merely a "sexual preference"-if a lover's sex is as much a matter of taste as, say, hair color (or having it butter-side up or butter-side down)-then...