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Article Open Access

Landscape of lncRNAs expressed in Mexican patients with triple‑negative breast cancer 

  • Authors:
    • Rosario Castro‑Oropeza
    • Cindy Velazquez‑Velazquez
    • Karla Vazquez‑Santillan
    • Alejandra Mantilla‑Morales
    • Martha Eugenia Ruiz Tachiquin
    • Javier Torres
    • Nora Rios‑Sarabia
    • Hector Mayani
    • Patricia Piña‑Sanchez
  • View Affiliations / Copyright

    Affiliations: Molecular Oncology Laboratory, Oncology Research Unit, XXI Century National Medical Center, The Mexican Institute of Social Security, Mexico City 06720, Mexico, Laboratory of Innovation in Precision Medicine, National Institute of Genomic Medicine, Mexico City 14610, Mexico, Department of Pathology, High Specialty Medical Unit Oncology Hospital, XXI Century National Medical Center, The Mexican Institute of Social Security, Mexico City 06720, Mexico, Molecular Biology Laboratory, Oncology Research Unit, XXI Century National Medical Center, The Mexican Institute of Social Security, Mexico City 06720, Mexico, Infectious and Parasitic Diseases Research Unit, XXI Century National Medical Center, The Mexican Institute of Social Security, Mexico City 06720, Mexico, Oncology Research Unit, XXI Century National Medical Center, The Mexican Institute of Social Security, Mexico City 06720, Mexico
    Copyright: © Castro‑Oropeza et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 163
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    Published online on: April 10, 2025
       https://doi.org/10.3892/mmr.2025.13528
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Abstract

Long non‑coding RNAs (lncRNAs) are key regulators of gene expression, that can regulate a range of carcinogenic processes. Moreover, they exhibit stability in biological fluids, with some displaying tissue specificity. As their expression depends on specific conditions or is linked to the regulation of particular signaling pathways, lncRNAs are promising candidates for providing insights into the likely progression of the disease. This allows for the stratification of patients based on their risk of progression, making them potential prognostic biomarkers in various types of cancer. In addition, the tissue‑specific expression profile of lncRNAs renders them ideal candidates for detection, prognosis and monitoring of cancer progression. The present study aims to provide an overview of differentially expressed lncRNAs in Mexican patients with triple‑negative breast cancer (TNBC), a subtype of breast cancer. The aim was to identify potential prognostic biomarkers that can be applied to improve the clinical management of Mexican patients with TNBC. Human Transcriptome Array 2.0 microarrays were used to analyze the transcriptome of TNBC and luminal tumors, which are reported to have a good prognosis amongst aggressive tumor types. Subsequently, results from these microarrays were validated in a cohort from The Cancer Genome Atlas, an independent cohort of Mexican patients and in breast cancer cell lines (MCF7, ZR75, T47D, MDA‑MB‑231, MDA‑MB‑468 and BT20). A total of 746 differentially expressed transcripts were identified, including 102 lncRNAs in TNBC compared with luminal tumors. Among the lncRNAs with the most significant changes in expression levels, SOX9‑AS was highly expressed in TNBC, whereas the expression of Lnc‑peroxidasin‑3:1 (Lnc‑PXDN‑3:1), Lnc‑RNA Synapse Defective Rho GTPase Homolog (Lnc‑SYDE) and long intergenic non‑coding RNA (LINC)01087 were decreased. In addition, the low expression of lncRNA LINC01087, LINC02568, ACO22196, and lncRNA eosinophil granule ontogeny transcript (Lnc‑EGOT) was associated with poor overall survival (OS). Further analysis revealed that the high expression levels of Lnc‑PXDN‑3:1, Lnc RNA fibrous sheath interacting protein 1‑6:3 and (LINC)00182 were associated with reduced survival in patients with the luminal subtype of breast cancer. Similarly, low expression levels of lncRNAs such as GATA binding protein 3‑1 (Lnc‑GATA‑3‑1), LINC01087, and BX679671.1 in luminal subtypes of breast cancer, as well as LINC00504 and LncRNA rho guanine nucleotide exchange factor 38 intronic transcript 1 (Lnc‑ARHGEF38‑IT1) in basal subtypes have been linked to poorer survival. The interactions and functions of LINC01087 were then investigated, revealing the interaction of LINC01087 with RNAs and transcription factors, highlighting their potential involvement in the estrogen receptor pathway. The present study provided a detailed analysis of the expression of lncRNAs in TNBC, which highlights the role of lncRNAs as a biomarker in the survival outcomes of patients with breast cancer to improve the understanding of transcriptional regulation in TNBC.
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Copy and paste a formatted citation
Spandidos Publications style
Castro‑Oropeza R, Velazquez‑Velazquez C, Vazquez‑Santillan K, Mantilla‑Morales A, Ruiz Tachiquin ME, Torres J, Rios‑Sarabia N, Mayani H and Piña‑Sanchez P: Landscape of lncRNAs expressed in Mexican patients with triple‑negative breast cancer&nbsp;. Mol Med Rep 31: 163, 2025.
APA
Castro‑Oropeza, R., Velazquez‑Velazquez, C., Vazquez‑Santillan, K., Mantilla‑Morales, A., Ruiz Tachiquin, M.E., Torres, J. ... Piña‑Sanchez, P. (2025). Landscape of lncRNAs expressed in Mexican patients with triple‑negative breast cancer&nbsp;. Molecular Medicine Reports, 31, 163. https://doi.org/10.3892/mmr.2025.13528
MLA
Castro‑Oropeza, R., Velazquez‑Velazquez, C., Vazquez‑Santillan, K., Mantilla‑Morales, A., Ruiz Tachiquin, M. E., Torres, J., Rios‑Sarabia, N., Mayani, H., Piña‑Sanchez, P."Landscape of lncRNAs expressed in Mexican patients with triple‑negative breast cancer&nbsp;". Molecular Medicine Reports 31.6 (2025): 163.
Chicago
Castro‑Oropeza, R., Velazquez‑Velazquez, C., Vazquez‑Santillan, K., Mantilla‑Morales, A., Ruiz Tachiquin, M. E., Torres, J., Rios‑Sarabia, N., Mayani, H., Piña‑Sanchez, P."Landscape of lncRNAs expressed in Mexican patients with triple‑negative breast cancer&nbsp;". Molecular Medicine Reports 31, no. 6 (2025): 163. https://doi.org/10.3892/mmr.2025.13528
Copy and paste a formatted citation
x
Spandidos Publications style
Castro‑Oropeza R, Velazquez‑Velazquez C, Vazquez‑Santillan K, Mantilla‑Morales A, Ruiz Tachiquin ME, Torres J, Rios‑Sarabia N, Mayani H and Piña‑Sanchez P: Landscape of lncRNAs expressed in Mexican patients with triple‑negative breast cancer&nbsp;. Mol Med Rep 31: 163, 2025.
APA
Castro‑Oropeza, R., Velazquez‑Velazquez, C., Vazquez‑Santillan, K., Mantilla‑Morales, A., Ruiz Tachiquin, M.E., Torres, J. ... Piña‑Sanchez, P. (2025). Landscape of lncRNAs expressed in Mexican patients with triple‑negative breast cancer&nbsp;. Molecular Medicine Reports, 31, 163. https://doi.org/10.3892/mmr.2025.13528
MLA
Castro‑Oropeza, R., Velazquez‑Velazquez, C., Vazquez‑Santillan, K., Mantilla‑Morales, A., Ruiz Tachiquin, M. E., Torres, J., Rios‑Sarabia, N., Mayani, H., Piña‑Sanchez, P."Landscape of lncRNAs expressed in Mexican patients with triple‑negative breast cancer&nbsp;". Molecular Medicine Reports 31.6 (2025): 163.
Chicago
Castro‑Oropeza, R., Velazquez‑Velazquez, C., Vazquez‑Santillan, K., Mantilla‑Morales, A., Ruiz Tachiquin, M. E., Torres, J., Rios‑Sarabia, N., Mayani, H., Piña‑Sanchez, P."Landscape of lncRNAs expressed in Mexican patients with triple‑negative breast cancer&nbsp;". Molecular Medicine Reports 31, no. 6 (2025): 163. https://doi.org/10.3892/mmr.2025.13528
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