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Updated: Feb 5, 2026

VIGS-Mediated Forward Genetics Screening for Identification of Genes Involved in Nonhost Resistance
Published on: August 23, 2013
Molecular pathways involved in microRNA-mediated regulation of multidrug resistance
Rongrong Liao1, Yuexia Lin1, Lihui Zhu2
1Institute of Animal Science and Veterinary Medicine, Shanghai Academy of Agricultural Sciences, 2901 Beidi Road, Shanghai, China.
Abstract:
Multidrug resistance (MDR) is still a major reason for therapeutic failure in cancers. The mechanisms underlying MDR are multifactorial and are not fully understood. miRNAs are evolutionarily conserved non-coding RNAs that function as key post-transcriptional regulators of gene expression. Emerging evidence indicates a vital role of miRNAs in the resistance to cancer treatments and suggests their potential for cancer therapy, as they can modulate multiple mechanisms link to the development of MDR. This review summarizes the recent findings on the role of miRNAs in MDR, and highlights the molecular targets and mechanisms of miRNA regulated pathways in MDR. Finally, the challenges and prospects of miRNA-targeted therapies for reversing drug resistance are reviewed.
Insights
MicroRNAs (miRNAs) play a crucial role in cancer multidrug resistance (MDR). This review explores how miRNAs regulate MDR and their potential for developing novel cancer therapies to overcome drug resistance.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Multidrug resistance (MDR) significantly contributes to cancer treatment failure.
- The complex mechanisms underlying MDR are not fully elucidated.
- MicroRNAs (miRNAs) are key regulators of gene expression with emerging roles in cancer drug resistance.
Purpose of the Study:
- To review recent findings on the role of miRNAs in MDR.
- To highlight molecular targets and pathways regulated by miRNAs in MDR.
- To discuss the challenges and prospects of miRNA-targeted therapies for reversing drug resistance.
Main Methods:
- Literature review of recent research on miRNAs and MDR.
- Analysis of molecular targets and regulatory pathways involved in miRNA-mediated MDR.
- Synthesis of information on therapeutic strategies involving miRNAs for overcoming drug resistance.
Main Results:
- miRNAs are implicated in various mechanisms contributing to MDR.
- Specific miRNAs can either promote or inhibit MDR by targeting key genes.
- miRNA-regulated pathways are critical in the development and maintenance of MDR.
Conclusions:
- miRNAs represent promising therapeutic targets for reversing MDR in cancer.
- Targeting specific miRNAs or their pathways could offer novel strategies to enhance cancer treatment efficacy.
- Further research is needed to overcome challenges and fully realize the potential of miRNA-based therapies for MDR.
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