Abstract
Background
Compared to other breast cancer subtypes, triple-negative breast cancer (TNBC) has always been challenging for clinicians due to its aggressive behavior and lack of a specific treatment. There is a confirmed association between invasive features of tumors and increased epithelial-mesenchymal transition (EMT) process, which is consistent with a higher rate of EMT in TNBC.
Methods and results
We investigated the expression of EMT-related genes, SNAI1 and MMP7, and EMT-related lncRNAs, treRNA and SBF2-AS1, in 50 TNBC tumors and 50 non-TNBC tumors to reveal more regulators and effectors involved in TNBC malignancy. In the present study, we showed the overexpression of all the studied genes and lncRNAs in TNBC tumors compared to non-TNBC samples. Moreover, a significant association was observed between MMP7 and treRNA expression levels and larger tumor size. A positive correlation between SNAI1 and lncRNA treRNA expression levels was also detected.
Conclusions
Due to the differential expression and the potential diagnostic power of the studied genes, SBF2-AS1 and treRNA can be proposed as new probable biomarkers and therapeutic targets in TNBC.
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Data Availability
The data that support the findings of this study are available from the corresponding author upon reasonable request.
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Acknowledgements
Current research has been adopted from the PhD thesis of Ms Zeeba Kamaliyan in School of Medicine, Shahid Beheshti University of Medical Sciences and was financially supported by the “Research Department of the School of Medicine, Shahid Beheshti University of Medical Sciences” (Code 25169).
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ZK and RM contributed to the study conception and design. Samples collection, material preparation and data analysis were performed by ZK, GA, KD, SK, RO and NA. The first draft of the manuscript was written by ZK and KD, and finally revised by RM, NM, and VY. All the authors read and approved the final manuscript.
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This research was conducted in compliance with the ethical principles of Helsinki Declaration and under the protocols of Ethics committee of SBMU (code: IR.SBMU.MSP.REC.1398.576).
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Kamaliyan, Z., Dorraji, K., Kakavand, S. et al. SBF2-AS1 and TreRNA: novel lncRNA players in triple-negative breast cancer pathogenesis. Mol Biol Rep 50, 6029–6037 (2023). https://doi.org/10.1007/s11033-023-08533-y
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DOI: https://doi.org/10.1007/s11033-023-08533-y