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Updated: Jan 31, 2026

Profiling of Estrogen-regulated MicroRNAs in Breast Cancer Cells
Published on: February 21, 2014
Exploring the oncogenic mechanism of plasmacytoma variant translocation 1 (PVT1) gene in solid cancers; emphasis on
Mojtaba Zehtabi1, Shirin Azizidoost2, Abdolah Mousavi Salehi3,4
1Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
Abstract:
PVT1 is a non-coding RNA (ncRNA) playing an important role in various biological processes, including cell survival, differentiation, proliferation, and chromatin regulation. Overexpression of PVT1 improve a proliferation rate even for 30% and reduces the level of apoptosis. It can act as a scaffold, decoy, guide, enhancer RNA, and it affects the entire gene life cycle through chromatin remodeling, epigenetic regulation, transcription, post-transcriptional control, and protein metabolism. PVT1 is a highly complex and multifunctional factor that plays a critical role in cancer development and progression through various mechanisms. Different PVT1 fusion transcripts have been identified in solid tumors and hematological malignancies. High expression of PVT1 is linked to advanced clinical stage, lymph node metastasis, and unfavorable overall survival in various types of human cancers. The manuscript represents extensive analysis and summary of the functions and mechanisms of PVT1 in the context of miRNAs and highlights possible ways to target PVT1 and the it signaling pathways. It is important to understand the intricate relationships between PVT1 and different types of human cancers to achieve a better understanding of the disease and treatment options. The current findings identify an upregulated PVT1 as a crucial promoter of the risk of carcinogenesis and tumor metastasis, also dramatically reducing patient survival, underscoring the potential of PVT1 expression as a prognostic marker in cancer.
Insights
PVT1, a non-coding RNA, significantly promotes cancer progression and metastasis by enhancing cell proliferation and reducing apoptosis. Its overexpression is linked to poor survival, highlighting PVT1 as a potential cancer prognostic marker.
Area of Science:
- Molecular Biology
- Genetics
- Cancer Research
Background:
- PVT1 is a versatile non-coding RNA (ncRNA) involved in critical cellular processes like survival, differentiation, proliferation, and chromatin regulation.
- PVT1 functions as a scaffold, decoy, guide, or enhancer RNA, influencing gene expression throughout its lifecycle via epigenetic and post-transcriptional mechanisms.
Purpose of the Study:
- To comprehensively analyze the multifaceted roles and mechanisms of PVT1 in cancer development and progression.
- To elucidate the intricate relationship between PVT1, microRNAs (miRNAs), and cancer pathogenesis.
- To identify potential therapeutic strategies targeting PVT1 and its associated signaling pathways.
Main Methods:
- Extensive literature review and analysis of PVT1 functions in various biological contexts.
- Examination of PVT1's role in gene regulation, including chromatin remodeling and epigenetic modifications.
- Analysis of PVT1 expression patterns in different human cancers and their correlation with clinical outcomes.
Main Results:
- PVT1 overexpression significantly increases cell proliferation (up to 30%) and decreases apoptosis.
- PVT1 fusion transcripts are prevalent in various solid tumors and hematological malignancies.
- High PVT1 expression correlates with advanced cancer stage, metastasis, and reduced patient survival.
Conclusions:
- Upregulated PVT1 is a critical driver of carcinogenesis and tumor metastasis.
- PVT1's complex regulatory functions underscore its importance in cancer biology.
- PVT1 expression serves as a promising prognostic biomarker for various human cancers, offering potential therapeutic targets.
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