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Published on: April 25, 2022
Roles of miRNA dysregulation in the pathogenesis of multiple myeloma
Dan Chen1, Xinhong Yang2, Min Liu2
1Department of Central Laboratory, The Affiliated Hospital of Chengde Medical College, Chengde, Hebei, China.
Abstract:
Multiple myeloma (MM) is a malignant disease of plasma cells with complex pathology, causing significant morbidity due to its end-organ destruction. The outcomes of patients with myeloma have significantly improved in the past couple of decades with the introduction of novel agents, such as proteasome inhibitors, immunomodulators, and monoclonal antibodies. However, MM remains incurable and presents considerable individual heterogeneity. MicroRNAs (miRNAs) are short, endogenous noncoding RNAs of 19-22 nucleotides that regulate gene expression at the posttranscriptional level. Numerous studies have shown that miRNA deregulation is closely related to MM pathology, including tumor initiation, progression, metastasis, prognosis, and drug response, which make the complicated miRNA network an attractive and marvelous area of investigation for novel anti-MM therapeutic approaches. Herein, we mainly summarized the current knowledge on the roles of miRNAs, which are of great significance in regulating pathological factors involved in MM progressions, such as bone marrow microenvironment, methylation, immune regulation, genomic instability, and drug resistance. Meanwhile, their potential as novel prognostic biomarkers and therapeutic targets was also discussed.
Insights
MicroRNAs (miRNAs) play a crucial role in multiple myeloma (MM) progression and drug resistance. Understanding these small RNAs offers potential for new prognostic biomarkers and therapeutic strategies against this incurable cancer.
Area of Science:
- Molecular Biology
- Oncology
- Genetics
Background:
- Multiple myeloma (MM) is a complex plasma cell malignancy causing significant morbidity.
- Novel agents have improved patient outcomes, but MM remains incurable with considerable heterogeneity.
- MicroRNAs (miRNAs) are noncoding RNAs regulating gene expression and are implicated in MM pathology.
Purpose of the Study:
- To summarize the current knowledge on the roles of miRNAs in multiple myeloma.
- To highlight the significance of miRNAs in regulating MM progression factors.
- To discuss the potential of miRNAs as prognostic biomarkers and therapeutic targets for MM.
Main Methods:
- Literature review and synthesis of existing research on miRNAs in multiple myeloma.
- Analysis of miRNA involvement in key pathological factors of MM.
- Evaluation of miRNA potential in prognosis and therapy.
Main Results:
- miRNA deregulation is closely linked to MM initiation, progression, metastasis, prognosis, and drug response.
- miRNAs significantly regulate critical pathological factors in MM, including the bone marrow microenvironment, methylation, immune regulation, genomic instability, and drug resistance.
Conclusions:
- miRNAs are integral to the complex pathology of multiple myeloma.
- Targeting the miRNA network presents a promising avenue for novel anti-MM therapeutic approaches.
- miRNAs hold potential as valuable prognostic biomarkers and therapeutic targets for multiple myeloma.
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