TY - JOUR ID - 46777 TI - Sperm-Associated Antigen 9 as a Candidate Diagnostic and Prognostic Biomarker in Breast Cancer JO - Middle East Journal of Cancer JA - MEJC LA - en SN - 2008-6709 AU - Naraghi, Houra AU - Mahjoubi, Frouzandeh AU - Nafissi, Nahid AD - Medical Biotechnology Institute, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran AD - Rasole Akram Hospital, Iran University of Medical Sciences, Tehran, Iran Y1 - 2020 PY - 2020 VL - 11 IS - 4 SP - 415 EP - 422 KW - SPAG9 KW - Cancer/testis antigens KW - Breast cancer KW - Biomarker KW - RT-PCR DO - 10.30476/mejc.2020.81553.1022 N2 - Background: Cancer/testis antigens are a unique class of tumor antigens with normal expressions restricted to the testis and various cancers, but not in adult somatic tissues. Sperm-associated antigen 9 (SPAG9) has been introduced as a new member of Cancer Testis Antigens family involved in c-Jun-NH2-kinase signaling module. The objective of this research was to investigate the potential of SPAG9 as a diagnostic and prognostic biomarker in breast cancer. We further aimed to find any significant association between SPAG9 expression and clinicopathologic features of the cancer. Methods: In this retrospective study, 35 breast cancer tissues and 35 adjacent non-cancerous tissues were collected and examined using RT-PCR to explore SPAG9 mRNA expression. Statistical analysis was done utilizing SPSS 22.0 software. Results: Unexpectedly, we detected SPAG9 expression in 54% of adjacent non-cancerous tissues. Moreover, SPAG9 mRNA was expressed in 57% of cancerous tissues. Statistical analysis showed a significant association between SPAG9 expression and tumor size, lymph node metastasis, and cancer stage. Conclusion: The association between the gene expression and tumor size, lymph, node and metastasis, and cancer stage suggests that SPAG9 can potentially be considered as a prognostic biomarker in breast cancer. However, it may not be a candidate diagnostic biomarker. UR - https://mejc.sums.ac.ir/article_46777.html L1 - https://mejc.sums.ac.ir/article_46777_a283dc74983482cf46350892070dc4f1.pdf ER -