ArticleStem cell research & therapy2025
Development and evaluation of siRNA-mediated gene silencing strategies for ADO2 therapy utilizing iPSCs model and DMPC-SPIONs delivery system.
Article in Stem cell research & therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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6 authors.
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Abstract
backgroundAutosomal dominant osteodystrophy type II (ADO2) is an inherited disease characterized by an abnormal increase in bone mineral density, and CLCN7 (R286W) is its most common causative mutation. The aim of this study was to explore the new idea of siRNA technology applied to the in vitro treatment of ADO2.
methodsUrinary-derived cells from ADO2 patients were collected to establish induced pluripotent stem cells (iPSCs) model. The siRNA targeting CLCN7 (R286W) mutant mRNA was designed. the cytotoxicity of the delivery vector DMPC-SPIONs was comprehensively evaluated by CCK-8 assay, flow cytometry and scratch assay. Finally, qPCR was utilized to verify the post-transcriptional silencing effect of siRNAs.
resultsWe found that DMPC-SPIONs had low cytotoxicity and were able to effectively deliver siRNAs into ADO2-iPSCs. qPCR confirmed that siRNA-DMPC-SPIONs were able to significantly reduce the expression level of mutant CLCN7 (66%), while there was no significant effect on the expression of wild-type CLCN7.
conclusionsThis study developed a gene silencing strategy based on siRNAs and DMPC-SPIONs, which provides a potential new approach for the treatment of ADO2 and demonstrates the potential application of siRNA technology in the treatment of autosomal dominant genetic diseases. INNOVATIVE STATEMENTS: In this study, we used the established ADO2-iPSCs using patient's urine-derived cells to explore the safety and efficacy of siRNA technology based on the principle of RNA interference for ADO2 treatment for the first time. In addition, we chose DMPC-SPIONs as the delivery vehicle for siRNA, which cleverly exploits the advantages of nanoparticles such as superparamagnetism, low cytotoxicity, and good bio-histocompatibility.
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