E M Desouky, A K Khaliefa, W G Hozayen, S M Shaaban, N A Hasona
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Signature of miR-21 and MEG-2 and their correlation with TGF-β signaling in breast cancer.
Breast cancer is highly prevalent and considered the main challenge to public health among females in Egypt as in other countries. MicroRNA-21 (miR-21) and MEG-2 are noncoding RNA attributed to their aberrant expression in several diseases, including breast cancer. This study aimed to assess the reliability of serum expression levels of miR-21 and MEG-2 in discriminating stages of breast cancer and scrutinize their correlations with the targeted transforming growth factor-beta (TGF-β) expression. One hundred and 30 participants whose ages ranged from 28 to 62 years were included in this study, divided into one hundred breast cancer patients and 30 healthy participants. miR-21 and TGF-β expression levels showed upregulation in patients with BC and elevated miR-21/TGF-β levels consistent with the BC stage. In addition, LncRNA (MEG-2) showed down-regulation in patients with BC. MEG-2 expression levels revealed a gradual decrease consistent with the BC stage. In addition, a negative relationship between the MEG-2 and the miR-21 and TGF-β differential expression was also noticed. This study suggested that miR-21 and MEG-2 can be used as prospective diagnostic biomarkers and emphasized the crucible role of TGF-β as therapeutic targets for BC.
期刊介绍：
Human and Experimental Toxicology (HET), an international peer reviewed journal, is dedicated to publishing preclinical and clinical original research papers and in-depth reviews that comprehensively cover studies of functional, biochemical and structural disorders in toxicology. The principal aim of the HET is to publish timely high impact hypothesis driven scholarly work with an international scope. The journal publishes on: Structural, functional, biochemical, and molecular effects of toxic agents; Studies that address mechanisms/modes of toxicity; Safety evaluation of novel chemical, biotechnologically-derived products, and nanomaterials for human health assessment including statistical and mechanism-based approaches; Novel methods or approaches to research on animal and human tissues (medical and veterinary patients) investigating functional, biochemical and structural disorder; in vitro techniques, particularly those supporting alternative methods
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