Impact of three miRNA signature as potential diagnostic marker for triple negative breast cancer patients

• Published in: Scientific reports Vol. 13; no. 1; p. 21643
• Main Authors: Kumar, Vivek, Gautam, Mansi, Chaudhary, Amit, Chaurasia, Bipin
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 08-12-2023; Nature Publishing Group; Nature Portfolio
• Subjects: 631/61; 631/67; Biomarkers, Tumor - genetics; Biopsy; Breast cancer; Gene Expression Regulation, Neoplastic; Humanities and Social Sciences; Humans; MicroRNAs; MicroRNAs - metabolism; miRNA; Morbidity; multidisciplinary; Science; Science (multidisciplinary); Triple Negative Breast Neoplasms - diagnosis; Triple Negative Breast Neoplasms - genetics; Triple Negative Breast Neoplasms - pathology
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/s41598-023-48896-7

Breast cancer is a highly aggressive type of cancer and has several subtypes, including triple-negative breast cancer (TNBC), which accounts for 25% of morbidity related to breast cancer. miRNAs are small non-coding RNA molecules that regulate 60% of human genes. Dysregulated expression of miRNA in liquid biopsy of TNBC patients has the potential as a minimally invasive diagnostic biomarker. The Association of miRNA with TNBC was evaluated using in-silico analysis. Highly enriched miRNAs were selected for functional analysis to evaluate the role of miRNA in the progression of TNBC. The qRT-PCR-based expression analysis of miRNA was performed in 190 serum samples (139 TNBC and 51 healthy). Revealed the elevated expression of miRNA-155 and miRNA-21 in TNBC compared to control samples (
P
 < 0.0001), while miRNA-205 was significantly downregulated in TNBC (
P
 < 0.0001). The combined diagnostic value of the miRNA-205, miRNA-155 and miRNA-21 in cohort-I, cohort-II, and cohort-III was AUC of 96.1% (
P
 < 0.0001), 94.9% (
P
 < 0.0001), and 97.1% (
P
 < 0.0001), respectively. Our study revealed that dysregulated expression of miRNA could be used as an independent indicator for discriminating TNBC from healthy patients. In addition, the combined predictive value of miRNA-205 + miRNA − 155 + miRNA-21 has higher AUC, sensitivity, and specificity in the diagnosis of TNBC in all three cohorts.