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Self-assembling peptides as immunomodulatory biomaterials.

ABSTRACT: Self-assembling peptides are a type of biomaterial rapidly emerging in the fields of biomedicine and material sciences due to their promise in biocompatibility and effectiveness at controlled release. These self-assembling peptides can form diverse nanostructures in response to molecular interactions, making them versatile materials. Once assembled, the peptides can mimic biological functions and provide a combinatorial delivery of therapeutics such as cytokines and drugs. These self-assembling peptides are showing success in biomedical settings yet face unique challenges that must be addressed to be widely applied in the clinic. Herein, we describe self-assembling peptides' characteristics and current applications in immunomodulatory therapeutics.

SUBMITTER: Hernandez A

PROVIDER: S-EPMC10014862 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature

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Self-assembling peptides as immunomodulatory biomaterials.

Hernandez Andrea A Hartgerink Jeffrey D JD Young Simon S

Frontiers in bioengineering and biotechnology 20230301

Self-assembling peptides are a type of biomaterial rapidly emerging in the fields of biomedicine and material sciences due to their promise in biocompatibility and effectiveness at controlled release. These self-assembling peptides can form diverse nanostructures in response to molecular interactions, making them versatile materials. Once assembled, the peptides can mimic biological functions and provide a combinatorial delivery of therapeutics such as cytokines and drugs. These self-assembling ...[more]

PMID: 36937769

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Project description:Peptides are of continued interest for therapeutic applications, from soluble and immobilized ligands that promote desired binding or uptake to self-assembled supramolecular structures that serve as scaffolds in vitro and in vivo. These applications require efficient and scalable synthetic approaches because of the large amounts of material that often are needed for studies of bulk material properties and their translation. In this work, we establish new methods for the synthesis, purification, and visualization of assembling peptides, with a focus on multifunctional collagen mimetic peptides (mfCMPs) relevant for formation and integration within hydrogel-based biomaterials. First, a methodical approach useful for the microwave-assisted synthesis of assembling peptide sequences prone to deletions was established, beginning with the identification of the deleted residues and their locations and followed by targeted use of dual chemistry couplings for those specific residues. Second, purification techniques that integrate the principles of heating and ion displacement with traditional chromatography and dialysis were implemented to improve separation and isolation of the desired multifunctional peptide product, which contained blocks for thermoresponsiveness and ionic interactions. Third, an approach for fluorescent labeling of these mfCMPs, which is orthogonal to their assembly and their covalent incorporation into a bulk hydrogel material, was established, allowing visualization of the resulting hierarchical fibrillar structures in three dimensions within hydrogels using confocal microscopy. The methods presented in this work allow the production of multifunctional peptides in scalable quantities and with minimal deletions, enabling future studies for better understanding of composition-structure-property relationships and for translating these biomaterials into a range of applications. Although mfCMPs are the focus of this work, the methods demonstrated could prove useful for other assembling peptide systems and for the production of peptides more broadly for therapeutic applications.

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Self-assembling peptides as immunomodulatory biomaterials.

Publications

Self-assembling peptides as immunomodulatory biomaterials.

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