A study of lipogenesis in neoplastic tissues has shown that acetate and glucose carbon can be utilized for synthesis of the fatty acid chain. However, the data indicate that this process is probably too slow to supply the lipid needs of a rapidly growing tumor, and the tumor must therefore obtain its lipids preformed from the host.

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This study was aided by grants from the National Cancer Institute of the National Institutes of Health, U.S. Public Health Service; the American Cancer Society, recommended by the Committee on Growth of the National Research Council; and the Atomic Energy Commission, Contract No. At(30-1)777.

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