Implication of viral microRNAs in the genesis and diagnosis of Epstein‑Barr virus‑associated tumors (Review)

Autor: Zunnan Huang, Qianhui Qiu, Biying Zheng, Yudong Ye, Xiangning Zhang, Ming Fu
Rok vydání: 2019
Předmět:
Zdroj: Oncology Letters.
ISSN: 1792-1082
1792-1074
Popis: The Epstein-Barr virus (EBV) is tightly associated with a variety of human tumors, including Burkitt lymphoma and acquired immune deficiency syndrome-related lymphoma of B-cell origin, as well as nasopharyngeal carcinoma and gastric cancer of epithelial origin. The virus latently infects the host cells and expresses proteins and non-coding RNAs to achieve malignancy. MicroRNAs (miRNAs or miRs) are small RNAs consisting of 19–25 nucleotides, which directly bind to the 3′-untranslated region of mRNAs to promote degradation and inhibit translation of mRNAs. EBV-encoded miRs are generated from two regions of the viral genome, within the apoptosis regulator BHRF1 gene locus and near the BamHI A region in a latency type-dependent manner. In addition, EBV-encoded miRs epigenetically regulate the expression of molecules that are effectors of the cell cycle progression, migration, apoptosis and innate immunity, serving a vital role in supporting viral replication and occurrence of EBV-associated tumors. The feasibility of using such miRs as biomarkers for the diagnosis and prognosis of EBV-associated tumors is currently under investigation.
Databáze: OpenAIRE