An Elastin-derived composite matrix for enhanced vascularized and innervated bone tissue reconstruction: from material development to preclinical evaluation. - Archive ouverte HAL Access content directly
Journal Articles Advanced Healthcare Materials Year : 2024

An Elastin-derived composite matrix for enhanced vascularized and innervated bone tissue reconstruction: from material development to preclinical evaluation.

Abstract

Despite progress in bone tissue engineering, reconstruction of large bone defects remains an important clinical challenge. Here, we developed a biomaterial designed to recruit bone cells, endothelial cells, and neuronal fibers within the same matrix, enabling bone tissue regeneration. The bioactive matrix is based on modified elastin-like polypeptides (ELPs) grafted with laminin-derived adhesion peptides IKVAV and YIGSR, and the SNA15 peptide for retention of hydroxyapatite (HA) particles. The composite matrix shows suitable porosity, interconnectivity, biocompatibility for endothelial cells, and the ability to support neurites outgrowth by sensory neurons. Subcutaneous implantation led to the formation of osteoid tissue, characterized by the presence of bone cells, vascular networks, and neuronal structures, while minimizing inflammation. Using a rat femoral condyle defect model, we performed longitudinal micro-CT analysis, which demonstrates a significant increase in the volume of mineralized tissue when using the ELP-based matrix compared to empty defects and a commercially available control (Collapat). Furthermore, visible blood vessel networks and nerve fibers are observed within the lesions after a period of two weeks. By incorporating multiple key components that support cell growth, mineralization, and tissue integration, this ELP-based composite matrix provides a holistic and versatile solution to enhance bone tissue regeneration. This article is protected by copyright. All rights reserved.

Domains

Biomaterials
Fichier principal
Vignette du fichier
Mahmoudi et al AdvHealthMat2024_13_2303765.pdf (9.29 Mo) Télécharger le fichier
Origin Files produced by the author(s)

Dates and versions

hal-04672983 , version 1 (19-08-2024)

Licence

Identifiers

Cite

Nadia Mahmoudi, Micaela Roque, Bruno Paiva dos Santos, Hugo Oliveira, Robin Siadous, et al.. An Elastin-derived composite matrix for enhanced vascularized and innervated bone tissue reconstruction: from material development to preclinical evaluation.. Advanced Healthcare Materials, 2024, 13 (18), pp.2303765. ⟨10.1002/adhm.202303765⟩. ⟨hal-04672983⟩
0 View
0 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More