| DC71417 |
YSK 05
|
YSK 05 is a pH-sensitive cationic lipid. YSK 05 improves the intracellular trafficking of non-viral vectors. YSK 05-MEND shows significantly good gene silencing activity and hemolytic activity. YSK 05 overcomes the suppression of endosomal escape by PEGylation. YSK 05 effectively enhances siRNA delivery both in vitro and in vivo. |
| DC70010 |
98N12-5
|
98N12-5 is an ionizable cationic lipid. It has been used in combination with other lipids in the generation of lipid nanoparticles (LNPs). LNPs containing 98N12-5 and encapsulating proprotein convertase subtilisin kexin type 9 (PCSK9) siRNA selectively accumulate in the liver and reduce total serum cholesterol levels in mice and rats and serum LDL levels in cynomolgus monkeys. |
| DC49952 |
246C10
|
246C10 is a synthesized ionizable lipid. 246C10 can be formulated into lipid nanoparticles (LNPs) with dioleoylphosphatidylethanolamine (DOPE), cholesterol, and C16-PEG2000 ceramide (PEG-lipid) as well as mRNA. The lipid nanoparticle formulations can be used for mRNA delivery. To obtain iLNPs that could specifically target liver sinusoidal
endothelial cells (LSECs), six different ionizable lipids (241C10
to 246C10) were synthesized by an epoxide ring-opening
reaction with piperazine- or piperidine-containing amines.
Biodistribution and gene regulation of various iLNPs were
assessed in vivo, and the results showed that the 246C10
iLNPs (containing piperazine amine) had the highest luciferase
expression in the liver. When further analyzing the
246C10 iLNPs transfection efficiency in different types of liver
cells, it was found that tdTomato fluorescence was mainly concentrated
in hepatocytes, not in LSECs. Figure 6f shows that 80%
of hepatocytes are fluorescent, 40% of LSECs are fluorescent, and
20% of Kupffer cells are fluorescent. Due to the mannose receptor
on LSECs, mannose-PEG lipid was introduced into 246C10
iLNPs to alter the distribution of iLNPs in different liver cells. As
shown in Figure 6g, tdTomato fluorescence distribution was 15%
of hepatocytes, 70% of LSECs, and 15% of Kupffer cells, significantly
improved the ability of iLNPs to actively target LSECs.
In contrast, this work indirectly shows that the iLNPs with piperazine
head lipid are more able to deliver mRNA to the liver and
translate the target protein than the iLNPs with piperidine
head lipid. It is worth mentioning that the preparation buffer of 246C10
iLNPs could influence the encapsulation efficiency of mRNA.
With the addition of sodium chloride in the citrate buffer, the
encapsulation efficiency of CRISPR-Cas9 mRNA and sgRNA
was increased. These iLNPs were able to treat hemophilia safely,
without causing hepatotoxicity, the immune response induced by
Cas9 and off-target editing. |
| DC49907 |
5A2-SC8
|
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. |
| DC49889 |
503O13
|
503O13 is a degradable lipid-like compound for siRNA delivery. |
| DC49882 |
CKK-E12
|
CKK-E12 is a ionizable lipid in combination with other lipids make up the lipid nanoparticles which are used to deliver RNA-based therapeutics. cKK-E12 was highly selective toward liver parenchymal cell in vivo.Multitail lipids usually have three or more tails and tend to form
more cone-shaped structures due to the increase of tail crosssection,
which enhances the endosome escape and mRNA
delivery efficiency.CKK-E12 is an ionizable lipid with four
lipid tails and diketopiperazine core-based head. It has shown
excellent efficiency in delivering CRISPR-Cas9 mRNA and
sgRNA.cKK-E12 iLNPs encapsulated mRNA was used to
investigate the effect of Toll-like receptor 4 (TLR4) on iLNPsmediated
mRNA delivery, and it has been demonstrated that
the targeting, safety and efficacy of iLNPs are closely related
to disease state. In other words, even though iLNP delivers
therapeutic mRNA to a given cell type in one disease state, it
is not guaranteed to deliver mRNA to the same cell type in
another disease. As same as MC3 and C12-200, CKK-E12 is also
used to be a positive control ionizable lipid when exploiting new
ionizable lipids. |
| DC49257 |
DLin-K-C3-DMA
|
DLin-K-C3-DMA, a nucleic acid, shows in vivo silencing activity. DLin-K-C3-DMA can be used in the synthesis of nucleic acid-lipid particle to delivery of nucleic acid. |
