Fatty acid conjugation enhances potency of antisense oligonucleotides in muscle
作者:Thazha P Prakash、Adam E Mullick、Richard G Lee、Jinghua Yu、Steve T Yeh、Audrey Low、Alfred E Chappell、Michael E Østergaard、Sue Murray、Hans J Gaus、Eric E Swayze、Punit P Seth
DOI:10.1093/nar/gkz354
日期:2019.7.9
structurally diverse saturated and unsaturated fattyacidconjugated ASOs with a range of hydrophobicity. The binding affinity of ASO fattyacidconjugates to plasma proteins improved with fattyacid chain length and highest binding affinity was observed with ASO conjugates containing fattyacid chain length from 16 to 22 carbons. The degree of unsaturation or conformation of double bond appears to have
Cationic oligopeptides modified with lipophilic fragments: Use for DNA delivery to cells
作者:I. A. Guryanov、G. P. Vlasov、E. A. Lesina、A. V. Kiselev、V. S. Baranov、E. V. Avdeeva、V. I. Vorob?ev
DOI:10.1007/s11171-005-0002-z
日期:2005.1
Cationic oligopeptides, including the amphipathic α-helical peptides, are applied to the targeted delivery of DNA to eukaryotic cells due to their DNA-compacting properties and the ability to destabilize the cell lipid bilayer in some cases. We synthesized the peptides differing in the number and location of residues of decanoic acid covalently attached to Lys residues in order to combine the DNA-binding and the membrane activities in a single molecule. We chose peptide structures that assisted in the formation of α helices. The DNA-binding ability of the peptides and the membrane activity of their complexes with DNA were shown to depend on the structure. The study of erythrocyte hemolysis by complexes with DNA of the pCMV LacZ plasmid and the peculiarities of transfection of these complexes revealed a correlation between the hemolytic activity and the expression level of the lacZ gene in cells.
The present invention relates to novel depsipeptide compounds. The invention also relates to pharmaceutical compositions of these compounds and methods of using these compounds as antibacterial compounds. The invention also relates to methods of producing these novel depsipeptide compounds and intermediates used in producing these compounds.
Practical Synthetic Method for Ogipeptin Derivatives
作者:Shingo Takiguchi、Takahide Nishi
DOI:10.1055/a-1981-4379
日期:2023.2
In synthesizing novel derivatives of the natural cyclic peptides the ogipeptins, we established a simple and practical solid-phase peptide synthesis and macrocyclization method. By using this method, it became possible to obtain skeleton-modified ogipeptin derivatives with dehydroxylation of the β-hydroxy-α,γ-diaminobutyric acid, replacement of the (Z)-dehydrobutyrine residue, or replacement of the
在合成天然环肽的新型衍生物ogipeptin方面,我们建立了一种简单实用的固相多肽合成和大环化方法。通过使用该方法,可以得到β-羟基-α,γ-二氨基丁酸脱羟基、( Z )-脱氢丁氨酸残基或精氨酸残基被置换的骨架修饰的ogipeptin衍生物。