Relationship between viral factors, axillary lymph node status and survival in breast cancer

Ju Hsin Tsai, Chun Sen Hsu, Chung Hung Tsai, Jang Ming Su, Yin Tso Liu, Min Hsiung Cheng, James Cheng Chung Wei, Fong Lin Chen, Chi Chiang Yang

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Purpose: Our previous study based on the results of polymerase chain reaction and Southern hybridization for the detection of Human papilloma virus (HPV), Cytomegalovirus (CMV), Epstein-Barr virus (EBV), Herpes simplex virus (HSV)-1, HSV-2, and Human herpesvirus (HHV)-8 DNA in non-familial breast cancer patients suggest that the viruses associated with breast cancer are HHV-8 > EBV (P <0.01). Therefore, efforts were made to further investigate the association between breast cancer with nodal status and viral infections. Methods: Sixty-two breast cancer patients and their mammary specimens were enrolled in this retrospective study. The presence of these six potential oncogenic viruses was analyzed to establish the relationship between nodal status and treatment outcome. Statistical analyses were used for the assessment of variables, including viral positivity and clinical feature. Results: Viral positivity was not significantly different comparing node-positive and node-negative patients (P > 0.05). When the viral factors were not entered for statistical analyses, no variable was significantly related to overall survival. However, tumor stage, tumor size, nodal status , and estrogen receptor were significantly related to relapse-free survival (P <0.05). For viral factors, the number of infecting viruses is related to the overall and relapse-free survivals. Only when V0 or V(0, 1) was grouped for comparison with other multiply virus-infected subgroups, were the overall and relapse-free survivals significantly different (P <0.005 or P <0.001). The results suggest that HSV-1, HHV-8, EBV, CMV, and HPV were related to overall survival, however, only HHV-8 and CMV were related to relapse-free survival (P <0.05 or P <0.01). Conclusion: Virus factor is significantly related to human breast cancer, not only in terms of the oncogenetic process, but also in overall and relapse-free survivals.

Original languageEnglish
Pages (from-to)13-21
Number of pages9
JournalJournal of Cancer Research and Clinical Oncology
Volume133
Issue number1
DOIs
Publication statusPublished - Jan 2007

Keywords

  • Lymph node
  • Overall survival
  • Polymerase chain reaction
  • Relapse-free survival
  • Southern hybridization
  • Virus

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

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    Tsai, J. H., Hsu, C. S., Tsai, C. H., Su, J. M., Liu, Y. T., Cheng, M. H., Wei, J. C. C., Chen, F. L., & Yang, C. C. (2007). Relationship between viral factors, axillary lymph node status and survival in breast cancer. Journal of Cancer Research and Clinical Oncology, 133(1), 13-21. https://doi.org/10.1007/s00432-006-0141-5