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Brett H. Pogostin ; Samuel X. Wu ; Michael J. Swierczynski , et al. bioRxiv,2024:2024.05.21.595134. DOI: 10.1101/2024.05.21.595134
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Abstract: Maintaining safe and potent pharmaceutical drug levels is often challenging. Multidomain peptides (MDPs) assemble into supramolecular hydrogels with a well-defined, highly porous nanostructure that makes them attractive for drug delivery, yet their ability to extend release is typically limited by rapid drug diffusion. To overcome this challenge, we developed self-assembling boronate ester release (SABER) MDPs capable of engaging in dynamic covalent bonding with payloads containing boronic acids (BAs). As examples, we demonstrate that SABER hydrogels can prolong the release of five BA-containing small-molecule drugs as well as BA-modified insulin and antibodies. Pharmacokinetic studies revealed that SABER hydrogels extended the therapeutic effect of ganfeborole from days to weeks, preventing Mycobacterium tuberculosis growth better than repeated oral administration in an infection model. Similarly, SABER hydrogels extended insulin activity, maintaining normoglycemia for six days in diabetic mice after a single injection. These results suggest that SABER hydrogels present broad potential for clinical translation.
Purchased from AmBeed: 98-80-6 ; 1072833-77-2 ; 174671-46-6 ; 179324-69-7
CAS No. : | 179324-69-7 | MDL No. : | MFCD09056737 |
Formula : | C19H25BN4O4 | Boiling Point : | - |
Linear Structure Formula : | (CH3)2CHCH2CH(B(OH)2)NHCOCH(CH2C6H5)NHCOC4H3N2 | InChI Key : | GXJABQQUPOEUTA-RDJZCZTQSA-N |
M.W : | 384.24 | Pubchem ID : | 387447 |
Synonyms : |
PS-341;LDP-341;MLN 341. US brand name: VELCADE.;MLN341;MG-341;NSC 681239
|
Chemical Name : | ((R)-3-Methyl-1-((S)-3-phenyl-2-(pyrazine-2-carboxamido)propanamido)butyl)boronic acid |
Signal Word: | Danger | Class: | 6.1 |
Precautionary Statements: | P260-P301+P310-P304+P340-P320-P330-P361-P405-P501 | UN#: | 3249 |
Hazard Statements: | H300-H310-H330-H372 | Packing Group: | Ⅱ |
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 |
---|---|---|
In N,N-dimethyl-formamide; at 20℃; for 2h; | A 25 mL flask was charged with 0.85 grams of 4-[(3-Carboxy-2- hydroxynaphthalen-1 -yl)methyl]-3-hydroxynaphthalene-2-carboxylic acid (pamoic acid) and 1 .7 grams of Bortezomib. Ten grams of dimethylformamide was added and the mixture was stirred at room temperature. The reaction mixture clarified over time, and was complete in 2 hours by TLC. The reaction mixture was filtered using a 0.45 m PVDF syringe filter and added dropwise to 250 mL ethyl ether under vigorous stirring resulting in the formation of a white precipitate. The solid was collected by vacuum filtration, transferred to a tared vial, and dried extensively under high vacuum to afford 2 grams of pure compound. TLC: 70:30 Acetone: Heptane Rf 0.5 on silica gel 60 F254 plates |