Effects of thymectomy on mammary tumor growth

The effect of thymectomy on prognosis following mammary tumor excision was evaluated in female C 3H MTV + mice, 5 to 6 months old, with spontaneous tumors 0.5 to 1 cm in diameter after random allocation to thymectomy or sham operation. Significant differences between these two groups were noted in a...

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Veröffentlicht in:The Journal of surgical research 1980-04, Vol.28 (4), p.348-355
Hauptverfasser: Peer, Gary, Papatestas, Angelos E., Tartter, Paul, Bekesi, George, Genkins, Gabriel, Aufses, Arthur H.
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container_end_page 355
container_issue 4
container_start_page 348
container_title The Journal of surgical research
container_volume 28
creator Peer, Gary
Papatestas, Angelos E.
Tartter, Paul
Bekesi, George
Genkins, Gabriel
Aufses, Arthur H.
description The effect of thymectomy on prognosis following mammary tumor excision was evaluated in female C 3H MTV + mice, 5 to 6 months old, with spontaneous tumors 0.5 to 1 cm in diameter after random allocation to thymectomy or sham operation. Significant differences between these two groups were noted in absolute survival, disease-free survival, interval to tumor reappearance, and survival following tumor reappearance. Thymectomy prolonged survival both in tumor-free and tumor-bearing mice and delayed the reappearance of the tumors. The results indicate that thymectomy, when used as an adjuvant to surgical ablation of mammary tumors, has a therapeutic role. Both the previously reported protective effect of thymectomy against the risk of mammary neoplasia and the observed protective role following tumor occurrence could be attributed to its metabolic and immunoregulatory effects.
doi_str_mv 10.1016/0022-4804(80)90095-5
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subjects Animals
Crosses, Genetic
Female
Mammary Neoplasms, Experimental - mortality
Mammary Neoplasms, Experimental - pathology
Mammary Neoplasms, Experimental - therapy
Mice
Mice, Inbred C3H
Neoplasm Recurrence, Local
Thymectomy
title Effects of thymectomy on mammary tumor growth
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