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Antigen presentation via tissue-specific microRNA (miRNA)-regulated expression from delivered messenger RNA (mRNA) constructs
- Molecular classification
- RNA, MicroRNA (miRNA), Messenger RNA (mRNA), Major Histocompatibility Complex (MHC)
01
Overview
This target refers to the modulation of antigen presentation by controlling the expression of antigens encoded on delivered mRNA constructs, where this expression is regulated in a tissue-specific manner by endogenous or engineered miRNAs. By incorporating miRNA recognition elements into the 3′ UTR of an mRNA construct, its translation can be selectively repressed in tissues where a given miRNA is highly expressed, allowing for targeted antigen production in desired cell types like antigen-presenting cells (APCs). This approach enables precise control over which cell types present antigens and activate T cells, offering a flexible immunomodulation strategy.
- Other names
- Tissue-specific mRNA antigen presentationmiRNA-regulated antigen expressionmRNA cancer vaccine with tissue specificity
02
Mechanism of action
Tissue-specific suppression of antigen expression from delivered mRNA constructs via miRNA-mediated translational repression or mRNA degradation. This allows for targeted antigen presentation in specific cell types, modulating the immune response.
03
Biological functions
Antigen presentationImmune response modulationPost-transcriptional gene regulationTranslation repressionmRNA degradation
04
Disease associations
CancerAutoimmune diseaseInfectious disease
05
Safety considerations
Off-target effects due to imperfect miRNA specificityUnintended immune responsesPotential for immune tolerance induction instead of activation
06
Biomarkers
Tissue-specific miRNA expression profilesMHC expression levelsAntigen-specific T cell responses
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