Abstract
IMMUNE responses often delay or prevent tumour induction by chemical carcinogens and oncogenic viruses1–9. Immune deficits, particularly of cellular immune responses, result in an increased frequency of neoplasms or a shortened latent period or both, and there is evidence10–12 for a delayed but distinct decrease in immune reactivity to some antigens with advancing age after the removal of the thymus, even in the adult, which emphasizes that the thymus has a continuing influence on immunological responses throughout life. No systematic study has been reported of the effect of induced immune defects (by neonatal thymectomy or by antilymphocyte serum, for example) on the frequency of spontaneous neoplasms of old age. We present the results of the influence of early thymectomy on the frequency of spontaneous neoplasms of several types in two groups of mice.
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BURSTEIN, N., LAW, L. Neonatal Thymectomy and Non-viral Mammary Tumours in Mice. Nature 231, 450–452 (1971). https://doi.org/10.1038/231450a0
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DOI: https://doi.org/10.1038/231450a0
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