TY - JOUR
T1 - Relationship between viral factors, axillary lymph node status and survival in breast cancer
AU - Tsai, Ju Hsin
AU - Hsu, Chun Sen
AU - Tsai, Chung Hung
AU - Su, Jang Ming
AU - Liu, Yin Tso
AU - Cheng, Min Hsiung
AU - Wei, James Cheng Chung
AU - Chen, Fong Lin
AU - Yang, Chi Chiang
N1 - Funding Information:
Acknowledgments This study was funded by grants from the National Science Council, Taiwan, ROC (NSC94-2314-B-040-027) and from Chung Shan Medical University (CSMU-94-OM-A-090).
PY - 2007/1
Y1 - 2007/1
N2 - 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.
AB - 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.
KW - Lymph node
KW - Overall survival
KW - Polymerase chain reaction
KW - Relapse-free survival
KW - Southern hybridization
KW - Virus
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U2 - 10.1007/s00432-006-0141-5
DO - 10.1007/s00432-006-0141-5
M3 - Article
C2 - 16865407
AN - SCOPUS:33751531830
SN - 0171-5216
VL - 133
SP - 13
EP - 21
JO - Journal of Cancer Research and Clinical Oncology
JF - Journal of Cancer Research and Clinical Oncology
IS - 1
ER -