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Combinatorial design of nanoparticles for pulmonary mRNA delivery and genome editing
Li, Bowen ; Manan, Rajith Singh ; Liang, Shun-Qing , et al. Nat. Biotechnol.,2023,41(10):1410-1415. DOI: 10.1038/s41587-023-01679-x PubMed ID: 36997680
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Abstract: The expanding applications of nonviral genomic medicines in the lung remain restricted by delivery challenges. Here, leveraging a high-throughput platform, we synthesize and screen a combinatorial library of biodegradable ionizable lipids to build inhalable delivery vehicles for mRNA and CRISPR-Cas9 gene editors. Lead lipid nanoparticles are amenable for repeated intratracheal dosing and could achieve efficient gene editing in lung epithelium, providing avenues for gene therapy of congenital lung diseases.
Purchased from AmBeed: 14916-80-4 ; 294-90-6 ; 13093-04-4 ; 65604-89-9 ; 22366-98-9 ; 143-28-2 ; 1484-84-0 ; 112-92-5 ; 3433-37-2 ; 34803-66-2 ; 622-26-4 ; 934-98-5 ; 3529-08-6 ; 123-70-6 ; 23356-96-9 ; 534-26-9 ; 4730-54-5 ; 108-00-9 ; 51388-00-2 ; 6711-48-4 ; 506-43-4 ; 2038-03-1 ; 142-25-6 ; 27578-60-5 ; 67980-77-2 ; 4572-03-6 ; 14156-95-7 ; 10563-26-5 ; 4097-88-5 ; 111-33-1 ; 123-12-6 ; 6261-22-9 ; 496808-04-9 ; 3644-18-6 ; 764-60-3 ; 1002-36-4 ; 51-45-6 ; 112086-54-1 ; 22104-79-6 ; 67529-83-3 ; 10563-29-8 ; 294-90-6 ; 506-43-4 ; 20739-58-6 ; 13901-38-7 ; 938459-02-0 ; 7209-38-3 ; 51721-39-2 ; 18128-28-4 ; 105-83-9 ; 877-96-3 ; 14712-23-3 ; 915922-79-1 ; 205059-32-1 ; 5298-72-6 ; 22763-69-5 ...More
CAS No. : | 4572-03-6 | MDL No. : | MFCD00014616 |
Formula : | C8H19N3 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | RGUABPVONIGVAT-UHFFFAOYSA-N |
M.W : | 157.26 | Pubchem ID : | 78328 |
Synonyms : |
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Signal Word: | Danger | Class: | 8 |
Precautionary Statements: | P280-P305+P351+P338-P310 | UN#: | 2735 |
Hazard Statements: | H314 | Packing Group: | Ⅲ |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
A library of compounds in which R4 was various groups having the formula [CONHR ?] was prepared by the process described above using 4-fluoro-3-nitrobenzoic acid, as follows: [72] Aldehyde resin was mixed with a primary amine (R17-NH2) in [DICHLOROETHANE] (DCE), triethylorthoformate (TEOF), and DMF (containing [1%] acetic acid) in a 1: 1: 1 ratio. After shaken overnight, sodium triacetoxyborohydride (20 eq. ) dissolved in DMF was added (Abdel-Magid, A. F. , et al., Tetrahedron Lett, 3 1: 5595-5598 (1990) ). After the mixture was shaken at room temperature overnight, the resin was filtered and washed with DMF (3 x 5 mL), [MEOH] [(3 X 5] mL), DMF [(3 X 5] mL), [MEOH] [(3 X 5] mL), and [CH2CL2] [(3 X 5] mL). The resin was washed twice with 5 mL DMF containing [1%] Hunig's base. To the filtered resin was added a mixture of 4-fluoro-3-nitrobenzoic acid (FNBA, 10 eq. ) and diisopropylcarbodiimide (DIC, 5 eq. ) in 2: 1 DMF : DCM. After shaking at room temperature overnight, the resin was filtered and washed with DMF (3 x 5 mL) and [CH2C12] (3 x 5 mL). [73] The resin was shaken with a primary amine [(R2-NH2)] in DMF for 8 hrs, filtered, and washed with DMF (6 x 5 mL), [MEOH] [(3 X 5] mL), and CH2C12 (3 x 5 mL). The aryl nitro group was reduced by the addition of tin (II) chloride dihydrate (20 eq. , >2 M) and N-methyl morpholine (NMM, 20 eq. ) in N-methyl pyrrolidinone (NMP). After shaken at room temperature overnight, the resin was filtered and washed with NMP (3 x 5 mL), [MEOH] (3 x 5 mL), and [CH2CI2 (3 X 5] mL). The resulting resin was shaken at room temperature with cyanogen bromide (5 eq. ) overnight, filtered, and washed with CH2Cl2 (3 x 5 mL), [MEOH] (3 x 5 mL), and CH2CI2 (3 x 5 mL). To produce a free amine, the resin was shaken for 30 min. in CHCl2 with the addition of sodium methoxide in methanol, filtered, and washed with CH2Cl2 [(4 X 5] mL). [[74]] In the final diversification step, the resin was heated at 500 C in DMF with a mono- substituted epoxide [[RLCH (-CH2O-)].] After shaking for 2 to 4 days the resin was filtered and washed with DMF (5 x 5 mL), [MEOH] [(3 X 5] mL), and CH2Cl2 (3 x 5 mL). T he resin-bound benzimidazole was cleaved from the solid-support by treatment with TFA: [CH2C12] (2: 3) for 1 hour at room temperature. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75% | With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine; In dichloromethane; acetonitrile; at 20℃; | General procedure: A mixture of 1 mmol (1 equiv.) of carboxylic acids, 1.4 mmol (1.4 equiv.) of amine, 552 mg (1.8 equiv.) of PyBOP and 2 mL of triethylamine was stirred overnight at room temperature in 40 ml of a 1:1 mixture of CH2Cl2 and CH3CN. After solvent evaporation, the crude product was purified by column chromatography on silica (CHCl3:CH3CH2OH = 9:1) resulting in yellow thick oil that slowly crystallized. |
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