Back

Multifunctional semiconducting polymer dots as a miRNA delivery system for osteogenic differentiation and stem cell tracking

Song, P.; Kjems, J.

2025-08-07 bioengineering
10.1101/2025.08.06.668851 bioRxiv
Show abstract

Small interfering RNAs (siRNA) and microRNAs (miRNA) are potent gene regulators through RNA interference (RNAi). In this study, we developed a multifunctional theranostic carrier for small RNA delivery and cell tracking using a polymer based nanoparticle composed of the lipid-like material S14, Pluronic F127 and semiconducting polymer MEH-PPV (SPM-dots). The resulting SPM-dots showed efficient siRNA transfection and labeling of human mesenchymal stem cells (hMSCs). Delivery of miR-29b to hMSCs significantly enhanced osteogenic differentiation. Furthermore, hMSCs transfected with SPM-dots displayed strong fluorescent signals in vivo after subcutaneous transplantation. These findings indicate that SPM-dots hold great potential as carrier for gene delivery and cell tracking applications.

Matching journals

The top 9 journals account for 50% of the predicted probability mass.

50% of probability mass above

"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.