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Updated: Jul 10, 2025

Repression of Multiple Myeloma Cell Growth In Vivo by Single-wall Carbon Nanotube SWCNT-delivered MALAT1 Antisense Oligos
Published on: December 13, 2018
Dysregulation of Non-Coding RNAs: Roles of miRNAs and lncRNAs in the Pathogenesis of Multiple Myeloma
Nor Hayati Ismail1, Ali Mussa1,2,3, Mutaz Jamal Al-Khreisat1
1Department of Haematology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia.
Abstract:
The dysregulation of non-coding RNAs (ncRNAs), specifically microRNAs (miRNAs) and long non-coding RNAs (lncRNAs), leads to the development and advancement of multiple myeloma (MM). miRNAs, in particular, are paramount in post-transcriptional gene regulation, promoting mRNA degradation and translational inhibition. As a result, miRNAs can serve as oncogenes or tumor suppressors depending on the target genes. In MM, miRNA disruption could result in abnormal gene expression responsible for cell growth, apoptosis, and other biological processes pertinent to cancer development. The dysregulated miRNAs inhibit the activity of tumor suppressor genes, contributing to disease progression. Nonetheless, several miRNAs are downregulated in MM and have been identified as gene regulators implicated in extracellular matrix remodeling and cell adhesion. miRNA depletion potentially facilitates the tumor advancement and resistance of therapeutic drugs. Additionally, lncRNAs are key regulators of numerous cellular processes, such as gene expression, chromatin remodeling, protein trafficking, and recently linked MM development. The lncRNAs are uniquely expressed and influence gene expression that supports MM growth, in addition to facilitating cellular proliferation and viability via multiple molecular pathways. miRNA and lncRNA alterations potentially result in anomalous gene expression and interfere with the regular functioning of MM. Thus, this review aims to highlight the dysregulation of these ncRNAs, which engender novel therapeutic modalities for the treatment of MM.
Insights
Dysregulation of non-coding RNAs (ncRNAs), including microRNAs (miRNAs) and long non-coding RNAs (lncRNAs), drives multiple myeloma (MM) progression. Understanding these ncRNA alterations offers new therapeutic strategies for MM treatment.
Area of Science:
- Molecular Biology
- Oncology
- Genetics
Background:
- Non-coding RNAs (ncRNAs), such as microRNAs (miRNAs) and long non-coding RNAs (lncRNAs), play critical roles in cellular functions.
- Dysregulation of ncRNAs is increasingly recognized as a hallmark of various cancers, including multiple myeloma (MM).
- miRNAs regulate gene expression post-transcriptionally, acting as oncogenes or tumor suppressors, while lncRNAs influence gene expression and chromatin remodeling.
Purpose of the Study:
- To review the dysregulation of miRNAs and lncRNAs in multiple myeloma.
- To highlight the impact of these ncRNA alterations on MM development and progression.
- To explore the potential of targeting ncRNAs for novel MM therapeutic strategies.
Main Methods:
- Literature review of studies investigating ncRNA expression and function in multiple myeloma.
- Analysis of the roles of miRNAs and lncRNAs in MM pathogenesis, including cell growth, apoptosis, and drug resistance.
- Synthesis of current knowledge on ncRNA-mediated molecular pathways in MM.
Main Results:
- Aberrant expression of miRNAs and lncRNAs is a common feature in MM, contributing to uncontrolled cell proliferation and survival.
- Dysregulated miRNAs can either promote or suppress tumor development by targeting specific genes involved in MM.
- Altered lncRNAs influence gene expression patterns that support MM growth and cellular viability.
Conclusions:
- ncRNA dysregulation is a significant driver of multiple myeloma.
- Targeting specific miRNAs and lncRNAs presents a promising avenue for developing innovative MM therapies.
- Further research into ncRNA mechanisms could unlock new treatment modalities for MM patients.
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