Word: fibroblasts
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...Caltech researchers have sequenced 40 of fibroblast interferon's amino acid "pearls." When the structure of the chain is fully determined, which it probably will be before the end of 1980, chemists will try to re-create IF in the laboratory. That promises to be a difficult task: so long a chain tends to break apart in synthesis. But if they succeed, pharmaceutical companies may some day be able to mass-produce this and other types of interferon using only off-the-shelf chemicals...
...into Youth. The rule that what is young must irrevocably grow old is almost universal in Nature. But not quite. The bones of animals generate a young cell called an osteoblast, which becomes a middle-aged cell called an osteoclast, which becomes an aged cell called a fibroblast, which ultimately dies. Dr. Franklin C. McLean and his University of Chicago co-worker fed parathyroid extract to aged fibroblasts, turned them into baby osteoblasts...