Journal
INDIAN JOURNAL OF CLINICAL BIOCHEMISTRY
Volume 35, Issue 3, Pages 312-321Publisher
SPRINGER INDIA
DOI: 10.1007/s12291-019-00826-z
Keywords
Breast cancer; hsa-mir-181b-1; CYLD; Expression level; Inflammation
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Some microRNAs are usually dysregulated in the cancers and influencing tumor behavior and progression. Hsa-miR-181b-1 and its targetCYLDare involved in regulating the inflammatory pathways. This study aimed to investigate the expression levels of hsa-mir-181b-1 andCYLDin a cohort of breast tumor tissues and normal adjacent tissues to assess their association with breast cancer stages. A total number of 60 breast samples including cancerous and normal adjacent tissue specimens were collected. After pathological study, the expression of hsa-mir-181b-1 andCYLDwere measured by qRT-PCR method. The hsa-mir-181b-1 expression level was significantly increased in breast tumor tissues compared to the controls. This increase was associated with the disease progression. Conversely,CYLDexpression level was decreased in tumor samples compared to normal samples, significantly. ROC curve data added other prestigious information of hsa-mir-181b-1 andCYLDby defining cancer and healthy tissues with high specificity and sensitivity at a proposed cutoff point. Also, bioinformatic enrichment for the possible targets of mature sequence of hsa-mir-181b-5p was performed. Computational analysis showed the five most significant pathways including metabolic, cancer, calcium signaling, PI3K-Akt signaling and focal adhesion pathways which may be influenced by hsa-mir-181b-1. Thus, we suggested hsa-mir-181b-1 andCYLDmight be involved in the pathogenesis of breast cancer and could be considered as two biomarkers for prediction, prognosis and diagnosis of the stages of the breast cancer.
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