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Enhanced radiosensitivity in experimental tumours following erythropoietin treatment of chemotherapy-induced anaemia.

The radiosensitivity of solid tumours in anaemic rats treated with recombinant human erythropoietin (rhEPO, epoetin beta) was studied. Anaemia was induced by a single dose of carboplatin (45 mg kg(-1) i.v.), resulting in a reduction in the haemoglobin concentration by 30%. In a second group, the dev...

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Autores principales: Thews, O., Koenig, R., Kelleher, D. K., Kutzner, J., Vaupel, P.
Formato: Texto
Lenguaje:English
Publicado: Nature Publishing Group|1 1998
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2062974/
https://www.ncbi.nlm.nih.gov/pubmed/9743294
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author Thews, O.
Koenig, R.
Kelleher, D. K.
Kutzner, J.
Vaupel, P.
author_facet Thews, O.
Koenig, R.
Kelleher, D. K.
Kutzner, J.
Vaupel, P.
author_sort Thews, O.
collection PubMed
description The radiosensitivity of solid tumours in anaemic rats treated with recombinant human erythropoietin (rhEPO, epoetin beta) was studied. Anaemia was induced by a single dose of carboplatin (45 mg kg(-1) i.v.), resulting in a reduction in the haemoglobin concentration by 30%. In a second group, the development of anaemia was prevented by rhEPO (1000 IU kg(-1)) administered s.c. three times per week starting 6 days before the carboplatin application. Three days after carboplatin treatment, DS-sarcomas were implanted subcutaneously onto the hind foot dorsum. Neither carboplatin nor rhEPO treatment influenced tumour growth rate. Five days after implantation, tumours were irradiated with a single non-curative dose (10 Gy), resulting in a growth delay with a subsequent regrowth of the tumours. In the rhEPO-treated group, the growth delay lasted significantly longer (9.5 days vs. 4.5 days) and the regrowth was slower (6.0 days vs. 4.1 days) compared with the anaemic group. These data suggest that the correction of chemotherapy-induced anaemia by rhEPO (epoetin beta) treatment increases tumour radiosensitivity, presumably as a result of an improved oxygen supply to tumour tissue.
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spelling pubmed-20629742009-09-10 Enhanced radiosensitivity in experimental tumours following erythropoietin treatment of chemotherapy-induced anaemia. Thews, O. Koenig, R. Kelleher, D. K. Kutzner, J. Vaupel, P. Br J Cancer Research Article The radiosensitivity of solid tumours in anaemic rats treated with recombinant human erythropoietin (rhEPO, epoetin beta) was studied. Anaemia was induced by a single dose of carboplatin (45 mg kg(-1) i.v.), resulting in a reduction in the haemoglobin concentration by 30%. In a second group, the development of anaemia was prevented by rhEPO (1000 IU kg(-1)) administered s.c. three times per week starting 6 days before the carboplatin application. Three days after carboplatin treatment, DS-sarcomas were implanted subcutaneously onto the hind foot dorsum. Neither carboplatin nor rhEPO treatment influenced tumour growth rate. Five days after implantation, tumours were irradiated with a single non-curative dose (10 Gy), resulting in a growth delay with a subsequent regrowth of the tumours. In the rhEPO-treated group, the growth delay lasted significantly longer (9.5 days vs. 4.5 days) and the regrowth was slower (6.0 days vs. 4.1 days) compared with the anaemic group. These data suggest that the correction of chemotherapy-induced anaemia by rhEPO (epoetin beta) treatment increases tumour radiosensitivity, presumably as a result of an improved oxygen supply to tumour tissue. Nature Publishing Group|1 1998-09 /pmc/articles/PMC2062974/ /pubmed/9743294 Text en https://creativecommons.org/licenses/by/4.0/This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/.
spellingShingle Research Article
Thews, O.
Koenig, R.
Kelleher, D. K.
Kutzner, J.
Vaupel, P.
Enhanced radiosensitivity in experimental tumours following erythropoietin treatment of chemotherapy-induced anaemia.
title Enhanced radiosensitivity in experimental tumours following erythropoietin treatment of chemotherapy-induced anaemia.
title_full Enhanced radiosensitivity in experimental tumours following erythropoietin treatment of chemotherapy-induced anaemia.
title_fullStr Enhanced radiosensitivity in experimental tumours following erythropoietin treatment of chemotherapy-induced anaemia.
title_full_unstemmed Enhanced radiosensitivity in experimental tumours following erythropoietin treatment of chemotherapy-induced anaemia.
title_short Enhanced radiosensitivity in experimental tumours following erythropoietin treatment of chemotherapy-induced anaemia.
title_sort enhanced radiosensitivity in experimental tumours following erythropoietin treatment of chemotherapy-induced anaemia.
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2062974/
https://www.ncbi.nlm.nih.gov/pubmed/9743294
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