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Is the thymidine labeling index a good prognostic marker in breast cancer?

BACKGROUND: The aim of the present study was to determine the prognostic relevance of thymidine labeling index (TLI) in patients with breast cancer. METHODS: TLI of the primary tumor was measured in 268 patients at the time of the surgical biopsy by an in vitro method. RESULTS: Fifty-four patients h...

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Autores principales: Sen-Oran, Ebru, Ozmen, Vahit, Bilir, Ayhan, Cabioglu, Neslihan, Muslumanoglu, Mahmut, Igci, Abdullah, Guney, Nese, Kecer, Mustafa
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2007
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2000894/
https://www.ncbi.nlm.nih.gov/pubmed/17705874
http://dx.doi.org/10.1186/1477-7819-5-93
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author Sen-Oran, Ebru
Ozmen, Vahit
Bilir, Ayhan
Cabioglu, Neslihan
Muslumanoglu, Mahmut
Igci, Abdullah
Guney, Nese
Kecer, Mustafa
author_facet Sen-Oran, Ebru
Ozmen, Vahit
Bilir, Ayhan
Cabioglu, Neslihan
Muslumanoglu, Mahmut
Igci, Abdullah
Guney, Nese
Kecer, Mustafa
author_sort Sen-Oran, Ebru
collection PubMed
description BACKGROUND: The aim of the present study was to determine the prognostic relevance of thymidine labeling index (TLI) in patients with breast cancer. METHODS: TLI of the primary tumor was measured in 268 patients at the time of the surgical biopsy by an in vitro method. RESULTS: Fifty-four patients had stage I disease, and 138 patients had stage II disease, and 76 patients had stage III disease. One hundred-four patients were found to have low TLI-index (<3%), and 164 patients had high TLI-index (≥3%). The median follow-up was 71.5 months (range, 6–138 months). The 5-year overall survival (OS) and disease free survival (DFS) rates was 84% and 74%, respectively. Lymph node involvement, tumor size more than 2 cm, high nuclear grade and estrogen receptor negativity were found to be associated with poorer DFS and OS rates. On subgroup analysis, however, the 5-year OS rate was significantly higher in the low TLI-group than in the high TLI-group in patients with stage I disease (100% vs 76%, p = 0.05). CONCLUSION: Our findings suggest that the prognostic significance of TLI appears to be limited to early breast cancer that might help to distinguish patients who need more aggressive adjuvant treatment.
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spelling pubmed-20008942007-10-05 Is the thymidine labeling index a good prognostic marker in breast cancer? Sen-Oran, Ebru Ozmen, Vahit Bilir, Ayhan Cabioglu, Neslihan Muslumanoglu, Mahmut Igci, Abdullah Guney, Nese Kecer, Mustafa World J Surg Oncol Research BACKGROUND: The aim of the present study was to determine the prognostic relevance of thymidine labeling index (TLI) in patients with breast cancer. METHODS: TLI of the primary tumor was measured in 268 patients at the time of the surgical biopsy by an in vitro method. RESULTS: Fifty-four patients had stage I disease, and 138 patients had stage II disease, and 76 patients had stage III disease. One hundred-four patients were found to have low TLI-index (<3%), and 164 patients had high TLI-index (≥3%). The median follow-up was 71.5 months (range, 6–138 months). The 5-year overall survival (OS) and disease free survival (DFS) rates was 84% and 74%, respectively. Lymph node involvement, tumor size more than 2 cm, high nuclear grade and estrogen receptor negativity were found to be associated with poorer DFS and OS rates. On subgroup analysis, however, the 5-year OS rate was significantly higher in the low TLI-group than in the high TLI-group in patients with stage I disease (100% vs 76%, p = 0.05). CONCLUSION: Our findings suggest that the prognostic significance of TLI appears to be limited to early breast cancer that might help to distinguish patients who need more aggressive adjuvant treatment. BioMed Central 2007-08-19 /pmc/articles/PMC2000894/ /pubmed/17705874 http://dx.doi.org/10.1186/1477-7819-5-93 Text en Copyright © 2007 Sen-Oran et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( (http://creativecommons.org/licenses/by/2.0) ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research
Sen-Oran, Ebru
Ozmen, Vahit
Bilir, Ayhan
Cabioglu, Neslihan
Muslumanoglu, Mahmut
Igci, Abdullah
Guney, Nese
Kecer, Mustafa
Is the thymidine labeling index a good prognostic marker in breast cancer?
title Is the thymidine labeling index a good prognostic marker in breast cancer?
title_full Is the thymidine labeling index a good prognostic marker in breast cancer?
title_fullStr Is the thymidine labeling index a good prognostic marker in breast cancer?
title_full_unstemmed Is the thymidine labeling index a good prognostic marker in breast cancer?
title_short Is the thymidine labeling index a good prognostic marker in breast cancer?
title_sort is the thymidine labeling index a good prognostic marker in breast cancer?
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2000894/
https://www.ncbi.nlm.nih.gov/pubmed/17705874
http://dx.doi.org/10.1186/1477-7819-5-93
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