Journal
MOLECULAR THERAPY
Volume 21, Issue 1, Pages 201-209Publisher
CELL PRESS
DOI: 10.1038/mt.2012.209
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Funding
- National Science Foundation [CHE-0910963]
- UMass-Amherst Office of Research
- American Heart Association
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RNA interference technology has recently been highlighted as a powerful research method as well as a potential therapeutic treatment for several diseases. However, the delivery of small interfering RNA (siRNA) into T cell lines and primary blood cells is exceedingly challenging, as they are resistant to transfection by conventional reagents. As a result, there is an unmet need for nonviral, efficient, and easily prepared carriers for siRNA delivery into hard-to-transfect cell types. Here, we report a novel system based on protein transduction domain mimics (PTDMs), generated by ring opening metathesis polymerization, for intracellular delivery of siRNA molecules. PTDM-based siRNA delivery induced efficient NOTCH1 knockdown in Jurkat T cells and human peripheral blood mononuclear cells without any measured toxicity. Furthermore, delivering siRNA to NOTCH1 in human peripheral blood cells modulated cell proliferation and differentiation of T cells into T(H)1 cells.
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