| DC13101 |
E10i-494 |
E10i-494 is a branched ionizable lipid designed to enhance the delivery of mRNA and CRISPR-Cas9 ribonucleoprotein (RNP) complexes. It belongs to the Branched Endosomal Disruptor (BEND) lipid family, which features terminal branching to improve endosomal escape and cellular uptake.E10i-494 demonstrated exceptional performance in T cell engineering, achieving >80% transfection efficiency in primary human T cells. This is significantly higher than the ~70% efficiency achieved by the linear lipid C14-494.The isopropyl branch enhances the lipid's ability to penetrate and disrupt endosomal membranes, leading to improved release of mRNA and RNPs into the cytoplasm.Despite its high efficiency, E10i-494 exhibits low cytotoxicity, making it suitable for therapeutic applications.E10i-494 is particularly effective for delivering mRNA to T cells, making it a promising tool for CAR-T cell therapy and other immunotherapies.Its ability to deliver CRISPR-Cas9 RNPs efficiently also makes it suitable for in vivo gene editing applications. |
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| DC13056 |
E4i-200 |
E4i-200 is a branched ionizable lipid designed for efficient mRNA and CRISPR-Cas9 delivery. It features a 4-carbon (C4) lipid tail with an isopropyl (i) branch at the terminal position, enhancing its ability to disrupt endosomal membranes. The lipid is built around the 200 core, a polyamine structure (N1-(2-(4-(2-aminoethyl)piperazin-1-yl)ethyl)ethane-1,2-diamine), which facilitates mRNA encapsulation and delivery.
E4i-200 excels in liver-targeted delivery, significantly improving mRNA translation and gene editing efficiency in vivo. In experiments, it outperformed linear lipids, achieving 1.5-fold higher liver luminescence compared to the gold standard C12-200. Its isopropyl branch promotes deeper membrane penetration, enhancing endosomal escape and cargo release.
This lipid is particularly effective for hepatic gene editing, reducing target gene expression (e.g., TTR) by up to 90% in mouse models. Its modular design and low toxicity make it a promising candidate for mRNA-based therapies and CRISPR applications in the liver. |
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| DC13058 |
E8i-200 |
E8i-200 is a novel Branched Endosomal Disruptor (BEND) ionizable lipid, designed to enhance the efficiency of lipid nanoparticles (LNPs) in drug delivery, particularly for mRNA and protein delivery. Its unique structure, featuring terminal branching, improves endosomal escape, a critical step in the delivery of therapeutic cargo into cells.E8i-200 is designed to enhance endosomal escape, a key bottleneck in mRNA and protein delivery. Its terminal branching structure provides several advantages:Improved Endosomal Membrane Penetration: The branched structure allows E8i-200 to more effectively disrupt endosomal membranes, facilitating the release of mRNA and proteins into the cytoplasm.Enhanced Gene Editing Efficiency: E8i-200 has been shown to significantly improve the delivery of CRISPR-Cas9 ribonucleoprotein (RNP) complexes, enabling efficient gene editing in vivo.E8i-200 significantly enhanced mRNA expression in the liver, outperforming traditional linear lipids like C12-200 in mouse models.E8i-200 effectively delivered CRISPR-Cas9 RNP complexes, achieving high editing efficiency in the liver, surpassing that of linear lipids.E8i-200 also showed high transfection efficiency and low cytotoxicity in T cells, making it a promising candidate for CAR-T cell engineering and other immunotherapies. |
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| DC153158 |
ND-O1 (SM-86 Analog-2)
Featured
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ND-O1 (SM-86 Analog-2) is a novel ionizable lipid designed to improve the delivery of siRNA via lipid nanoparticles (LNPs) for treating liver fibrosis. It is derived from SM-86 (structurally similar to SM-102, used in COVID-19 mRNA vaccines) but incorporates an ether bond within its hydrophobic tail, a first-of-its-kind modification aimed at enhancing delivery efficiency. In Vitro Efficiency: ND-O1 LNPs (LNP-O1) showed significantly higher siRNA transfection efficiency in activated fibroblasts compared to Lipid 5 LNPs (LNP-M). In Vivo Efficacy: In a CCl4-induced liver fibrosis mouse model, LNP-O1/siHSP47 (loaded with HSP47-targeting siRNA) reduced HSP47 expression by ~84%, threefold more effective than LNP-M. This led to a dramatic reduction in collagen deposition and marked improvement in liver fibrosis. Safety: The ether bond modification did not introduce additional toxicity, maintaining biocompatibility. ND-O1 represents a breakthrough in ionizable lipid design, demonstrating that strategic placement of ether bonds in hydrophobic tails can enhance LNP performance without compromising safety. Its success highlights its potential for clinical translation in RNA-based therapies for liver fibrosis and other hepatic diseases. |
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| DC67280 |
Lipid 35 |
Lipid 35 is an novel ionizable lipid designed to enhance the delivery of mRNA to specific tissues, particularly the lungs.Lipid 35 demonstrates superior chemical stability, especially in storage conditions. This stability ensures that the lipid maintains its integrity over extended periods, making it ideal for long-term storage and large-scale production.Lipid 35 exhibits high transfection efficiency in various cell types, including nonimmune cells, endothelial cells, and epithelial cells. Lipid 35 has demonstrated excellent biocompatibility and safety in preclinical studies. It does not cause significant liver damage or adverse immune responses, making it a safer alternative for therapeutic applications. |
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| DC60782 |
Lipid A4B4-S3
Featured
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A4B4-S3 is a novel biodegradable ionizable lipid that has been meticulously designed through modular platforms and optimized specifically for mRNA delivery. It serves as a critical component of lipid nanoparticles (LNPs) and enhances mRNA delivery efficiency by facilitating endosomal escape. The structural design of A4B4-S3 leverages the Passerini reaction, a highly efficient and modular chemical method that enables the rapid generation of diverse lipid libraries. The design focuses on optimizing the methylene units between lipid headgroups and linkages to strengthen hydrogen bonding interactions with mRNA ribophosphate complexes. This enhanced hydrogen bonding allows for more effective release of mRNA from endosomes, thereby boosting delivery efficiency. Concurrently, the structural optimization improves biodegradability, reducing potential long-term toxicity risks.
In experimental studies, A4B4-S3 has demonstrated superior gene editing efficacy in mouse liver compared to SM-102, a clinically prevalent lipid used in Moderna's COVID-19 vaccine. It also shows potential for repeat-dose protein replacement therapies, suggesting enhanced stability and safety for long-term treatment regimens. Technologically, A4B4-S3 not only provides a more efficient LNP formulation but also deepens the understanding of the relationship between structure and delivery efficiency. This offers new directions for the development of future mRNA therapeutics. In summary, A4B4-S3 represents a next-generation delivery carrier achieved through rational design and high-throughput screening strategies. Its performance enhancements and biodegradable properties position it as a promising candidate for gene therapies and vaccine applications. |
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| DC60789 |
SM-86 Analog-1
Featured
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SM-86 Analog-1 is a novel ionizable lipid designed to improve the delivery of RNA via lipid nanoparticles (LNPs) It is derived from SM-86,with 8 carbon within its hydrophobic tail. |
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| DC67281 |
BNT-51
Featured
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| DC67282 |
L608 (Merck-32) |
L-608 is a novel ionizable amino lipid designed for formulating lipid nanoparticles (LNPs) to enable efficient subcutaneous (s.c.) delivery of mRNA therapeutics. Engineered to address inflammation associated with mRNA LNPs, L608 integrates seamlessly with steroid prodrugs, such as budesonide-C16 and budesonide-C18:1, to suppress local and systemic inflammatory responses while prolonging therapeutic protein expression. Preclinical studies demonstrate that L608 LNPs significantly reduce injection-site edema (>80% improvement) and lower systemic inflammatory markers (e.g., haptoglobin), while achieving 2–3× higher plasma AUC for proteins like hFGF21 compared to non-steroid LNPs. |
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| DC67283 |
C14-490 |
C14-490 is a versatile ionizable lipid that enhances the delivery and efficacy of mRNA-based therapies, particularly in targeted delivery to specific cell types and long-term genome editing applications. Its use in LNPs for in vivo and in utero delivery demonstrates its potential for advancing mRNA therapeutics and gene editing technologies. |
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| DC67290 |
ATX-231 |
ATX-231 which is from Arcturus RNA delivery platform, is a novel ionizable lipid used in the formulation of lipid nanoparticles (LNPs) for the delivery of RNA. |
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| DC67291 |
Arcturus Lipid 54 |
Arcturus Lipid 54 which is from Arcturus RNA delivery platform, is a novel ionizable lipid used in the formulation of lipid nanoparticles (LNPs) for the delivery of RNA. |
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| DC60793 |
LUMI-6
Featured
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LUMI-6, a brominated ionizable lipid developed through xAI’s LUMI-lab platform, features a unique molecular design with a bromine atom critical for enhancing mRNA delivery, outperforming its debrominated derivative, LUMI-6D. In murine models, it achieved a groundbreaking 20.3% gene editing efficiency in lung epithelial cells via inhaled delivery of CRISPR-Cas9 lipid nanoparticles (LNPs), surpassing previous records and the commonly used SM-102 LNP in pulmonary Cas9 mRNA/gRNA complex delivery. In human bronchial epithelial (HBE) cells, LUMI-6 demonstrated 1.8-fold higher mRNA transfection efficiency than LUMI-6D while maintaining comparable cytotoxicity to non-brominated lipids. Its brominated tail structure optimizes mRNA encapsulation and release, balancing high efficiency with low toxicity. Notably, LUMI-6 exhibits cellular selectivity, preferentially transfecting lung epithelial cells—such as ciliated (α-tubulin+) and club (CCSP+) cells—over endothelial cells, making it highly relevant for airway-targeted therapies like cystic fibrosis and surfactant disorders. Effective for both mRNA delivery and CRISPR-Cas9 systems, LUMI-6 represents a significant advancement in pulmonary gene therapy, addressing unmet needs in treating congenital lung diseases through epithelial cell-specific editing. As the first reported LNP to achieve over 20% editing efficiency in lung epithelium via inhalation, it underscores the power of AI-driven lipid discovery in accelerating therapeutic innovation. |
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| DC67292 |
IAJD34 |
IAJD34 is a monocomponent lipid nanoparticle (LNP) engineered for selective mRNA delivery to the lungs. Its design leverages a large hydrophobic structure and a pH-dependent surface charge (pKa 6.74), enabling preferential accumulation in the pulmonary compartment after intravenous injection. This property allows it to bypass traditional delivery barriers and achieve high-efficiency transfection in distal airways (beyond the 16th bronchial generation), a critical target region for treating lung diseases like acute lung injury (ALI) and chronic obstructive pulmonary disease (COPD). |
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| DC67294 |
Lipid B1 |
Lipid B1 is a next-generation ionizable lipid engineered for superior mRNA delivery, featuring a patented β-isobutylglutarate branching linker that optimizes nanoparticle assembly and intracellular release. Its unique structure combines a pH-responsive tertiary amine headgroup with twin C18 alkyl tails connected via biodegradable ester bonds, enabling precise control over lipid packing and endosomal escape. Preclinical studies demonstrate that Lipid B1-based LNPs (bLNPs) achieve **>75% transfection efficiency in vitro at ultra-low mRNA doses (1 μg), outperforming commercial benchmarks like SM-102. In vivo, subcutaneous administration of bLNPs delivers 10-fold higher luciferase expression** than linear-chain analogs, with targeted biodistribution to lymph nodes and tumor sites. Clinically relevant data show 100% tumor prevention in prophylactic cancer vaccine models and 70% tumor regression in therapeutic settings when combined with checkpoint inhibitors. The ester-based backbone ensures rapid metabolic clearance, minimizing systemic toxicity risks (NOAEL >10 mg/kg in mice). Compatible with mRNA, siRNA, and CRISPR-Cas9 payloads, Lipid B1 is ideal for vaccines, gene therapies, and immuno-oncology. Its scalable 3-step synthesis (yield >80%) and lyophilization stability (-80°C, 12 months) make it a cost-effective solution for GMP-grade production. For advanced delivery with unmatched safety and efficacy, Lipid B1 sets a new standard in nucleic acid therapeutics. |
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| DC67295 |
Lipid MK16
Featured
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MK16 is a novel blood-brain barrier (BBB)-crossing lipid nanoparticle (BLNP) platform developed for efficient mRNA delivery to the central nervous system (CNS). Designed through structure-guided optimization, MK16 lipids integrate a γ-secretase inhibitor-derived BBB-penetrating module (MK-0752) with ionizable amino lipids, enabling systemic mRNA transport into the brain.MK16 was selected from a library of 72 BBB-crossing lipids synthesized by conjugating small-molecule BBB transporters (e.g., L-DOPA, D-serine, MK-0752) with lipid tails. Structural refinements, including acetal-functionalized alkyl chains and optimized lipid-to-mRNA ratios (12.5:1 w/w), enhanced brain delivery efficiency. MK16 BLNPs exhibit a particle size of ~137 nm, 85% mRNA encapsulation, and a pKa of 6.7–6.9, facilitating endosomal escape.MK16 BLNPs cross the BBB via caveolae- and γ-secretase-mediated transcytosis, as validated by inhibitor studies. In mice, intravenous MK16 BLNPs delivered mRNA broadly to neurons (7.4% GFP+), astrocytes (9.7% GFP+), and brain endothelial cells (9.2% GFP+), outperforming FDA-approved LNPs (MC3, SM-102) by 6–8-fold in brain luminescence. Functional studies in Ai14 mice demonstrated Cre mRNA-mediated tdTomato activation across the hippocampus, thalamus, and cortex, with triple dosing doubling transfection efficiency.Cocaine Addiction: MK16-delivered ΔFosb mRNA enhanced cocaine-conditioned place preference in mice, mimicking addiction-related neural plasticity.
Glioblastoma (GBM): Systemic MK16-Pten mRNA inhibited orthotopic U-118MG tumor growth, achieving 70% survival at 120 days vs. controls.
Human Translation: Ex vivo human brain slices showed ΔFOSB expression in neurons (4.0%) and astrocytes (6.5%), confirming clinical potential.MK16 BLNPs exhibited minimal toxicity in multi-dose regimens, with normal blood biomarkers, cytokine levels, and histopathology. Unlike MK-0752, MK16 did NOT alter NOTCH pathway genes, mitigating off-target risks. |
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| DC60797 |
A2C18_D5 |
A2C18_D5 is an optimized lipid nanoparticle (LNP) component engineered with structural modifications to enhance mRNA delivery efficiency and safety. Its design incorporates a hydrophobic head group (A2, featuring a pentyl chain) and an unsaturated C18 tail, which collectively lower its pKa to the ideal range of 6–7, enabling stable encapsulation of nucleic acids and improved endosomal escape. In vitro and in vivo studies demonstrate that A2C18_D5 achieves mRNA delivery efficiency comparable to the clinically approved LNP benchmark MC3, while exhibiting over 200-fold higher potency than its precursor lipid (A1C11). The lipid’s reduced protonation capacity minimizes cytotoxicity and hemolytic risk, aligning with safety profiles of established LNPs. Upon intravenous administration, A2C18_D5 predominantly targets the liver and spleen, with a biodistribution profile favoring hepatic delivery. Its balanced combination of high transfection efficiency, low toxicity, and favorable pharmacokinetics positions A2C18_D5 as a promising candidate for next-generation mRNA therapeutics, including vaccines and treatments for liver-specific diseases. Further optimization of its head-tail structure highlights its versatility for tailored delivery applications. |
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| DC67314 |
Lipid AA2 |
AA2 lipid is an innovative amino alcohol-derived ionizable lipid designed for optimized mRNA delivery. Its unique structure includes a hydroxyl-containing headgroup that enhances mRNA binding through hydrogen bonds and a branched ester tail (R2) that promotes a cone-shaped architecture, facilitating efficient endosomal escape. Formulated into lipid nanoparticles (LNPs) with a size of 108.6 ± 3.7 nm and a polydispersity index (PDI) below 0.3, AA2 achieves high mRNA encapsulation efficiency (89.0 ± 1.4%) and an ideal pKa of approximately 6.2, ensuring effective endosomal release.In vivo studies demonstrate that AA2 LNP-encapsulated spike mRNA elicits 4.7-fold higher IgG titers and robust CD8+ T-cell responses (characterized by IFN-γ+, TNF-α+, and granzyme B+ markers) compared to SM-102/ALC-0315 LNPs. Notably, AA2 exhibits minimal off-target accumulation, with low biodistribution in the liver and spleen. Its slightly positive surface charge (+3–5 mV) enhances cellular uptake, while the biodegradable ester structure ensures metabolic clearance, reducing potential toxicity. |
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| DC67315 |
Lipid AA15 |
The AA15 lipid, an amino acid-derived ionizable lipid, integrates a carboxylic acid-containing headgroup and biodegradable branched ester tails (R2) to enhance mRNA delivery. Optimized as AA15V LNP, it exhibits a hydrodynamic diameter of 102.3 ± 4.1 nm, low polydispersity (PDI <0.15), and slightly positive zeta potential (+4–6 mV), enabling efficient tumor-targeted delivery. With a pKa ~6.1–6.4, AA15V ensures protonation in acidic endosomes, promoting mRNA release. It achieves >85% mRNA encapsulation efficiency, critical for stable saRNA delivery. In vitro, AA15V LNP-sSE-SCTs induced sustained SE-SCT expression (69% H-2Kb+β2m+ B16F10 cells at 72 h), outperforming mRNA formulations. In vivo, a single intratumoral dose of AA15V LNP-sSE-SCTs suppressed tumor growth by 22-fold in vaccinated mice, synergizing with checkpoint inhibitors (anti-PD-1/CTLA-4) for complete regression in 28.6% of lymphoma models. Ex vivo, AA15V enabled SE-SCT expression in human glioblastoma (7.1% CD45− cells) and lung cancer samples (5.8–8.7%), underscoring clinical potential. Key data: pKa ~6.3; encapsulation: 85–89%; zeta: +4–6 mV; size: 102.3 ± 4.1 nm. |
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