当前位置: X-MOL 学术Bioconjugate Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Peptide Amphiphilic-Based Supramolecular Structures with Anti-HIV-1 Activity
Bioconjugate Chemistry ( IF 4.0 ) Pub Date : 2021-07-13 , DOI: 10.1021/acs.bioconjchem.1c00292
Maria J Gómara 1 , Ramon Pons 2 , Carolina Herrera 3 , Paul Ziprin 4 , Isabel Haro 1
Affiliation  

In a previous work, we defined a novel HIV-1 fusion inhibitor peptide (E1P47) with a broad spectrum of activity against viruses from different clades, subtypes, and tropisms. With the aim to enhance its efficacy, in the present work we address the design and synthesis of several peptide amphiphiles (PAs) based on the E1P47 peptide sequence to target the lipid rafts of the cell membrane where the cell–cell fusion process takes place. We report the synthesis of novel PAs having a hydrophobic moiety covalently attached to the peptide sequence through a hydrophilic spacer of polyethylene glycol. Characterization of self-assembly in condensed phase and aqueous solution as well as their interaction with model membranes was analyzed by several biophysical methods. Our results demonstrated that the length of the spacer of polyethylene glycol, the position of the peptide conjugation as well as the type of the hydrophobic residue determine the antiviral activity of the construct. Peptide amphiphiles with one alkyl tail either in C-terminus (C-PAmonoalkyl) or in N-terminus (N-PAmonoalkyl) showed the highest anti-HIV-1 activities in the cellular model of TZM-bl cells or in a preclinical model of the human mucosal tissue explants.

中文翻译:


具有抗HIV-1活性的基于两亲性的肽超分子结构



在之前的工作中,我们定义了一种新型 HIV-1 融合抑制肽 (E1P47),该肽对来自不同进化枝、亚型和向性的病毒具有广谱活性。为了提高其功效,在目前的工作中,我们基于 E1P47 肽序列设计和合成了几种肽两亲物 (PA),以靶向发生细胞-细胞融合过程的细胞膜脂筏。我们报道了新型 PA 的合成,该 PA 具有通过聚乙二醇亲水间隔基共价连接到肽序列的疏水部分。通过多种生物物理方法分析了凝聚相和水溶液中自组装的表征以及它们与模型膜的相互作用。我们的结果表明,聚乙二醇间隔基的长度、肽缀合的位置以及疏水残基的类型决定了构建体的抗病毒活性。在 C 末端( C -PA单烷基)或 N 末端( N -PA单烷基)具有一个烷基尾的肽两亲物在 TZM-bl 细胞的细胞模型或临床前研究中显示出最高的抗 HIV-1 活性。人体粘膜组织外植体模型。
更新日期:2021-09-15
down
wechat
bug