5A2-SC8 is a dendrimer for miRNA delivery to late-stage liver tumors with low hepatotoxicity. 5A2-SC8 shows potent EC50 < 0.02 mg/kg (siRNA against FVII (siFVII)) in dose-response experiments, and well tolerated in separate toxicity studies in chronically ill mice bearing MYC-driven tumors. 5A2-SC8 is a degradable lipid-like compound (ester-based dendrimer) for small RNAs delivery.5A2-SC8, was obtained by screening a large library of more than 1500 ester-based dendrimers
containing ionizable amino groups, which have three
tertiary amine heads and five lipid tails. Based on this library,
the in vitro transfection efficiency of different formulations of
5A2-SC8 iLNPs was evaluated, discovering the optimal formulation
(5A2-SC8, DOPE, cholesterol, PEG at a molar ratio of
15:15:30:3) of 5A2-SC8 iLNPs for delivering fumarylacetoacetate
hydrolase (FAH) mRNA to liver.After the intravenous injection
via tail, the model mice of hepatorenal tyrosinemia type I
had strong FAH protein expression, which prevented
body weight loss and increased the survival rate of hepatorenal
tyrosinemia mice . In addition to introducing utility of
5A2-SC8 iLNPs for the therapeutic intervention, the 5A2-SC8
iLNPs containing DOTAP have been used to establish complex
mouse models via intravenous injection, including in situ liverspecific
cancer model and in situ lung-specific cancer model.
Based on this iLNPs delivery system, 5A2-SC8 induced model
construction method overcomes the time-consuming and costly
disadvantages of traditional animal models establishing methods,
including transgenesis and gene engineering in embryonic
stem cells.
Cat.No
DC49907
Name
5A2-SC8
Chemical Properties
CAS
1857341-90-2
Formula
C93H173N5O20S5
MW
1841.72
Storage
2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO
References
Yehui Sun et al. In vivo editing of lung stem cells for durable gene correction in mice. Science, 2024, doi:10.1126/science.adk9428.
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