Rossi Arianna, Furlani Franco, Bassi Giada, Cunha Carla, Lunghi Alice, Molinari Filippo, Teran Francisco J, Lista Florigio, Bianchi Michele, Piperno Anna, Montesi Monica, Panseri Silvia
Institute of Science, Technology and Sustainability for Ceramics, National Research Council of Italy. Via Granarolo 64, 48018. Faenza, Italy.
University of Messina, Department of Chemical, Biological, Pharmaceutical and Environmental Sciences. Viale Ferdinando Stagno d'Alcontres, 31, 98166, Messina, Italy.
Mater Today Bio. 2024 Jun 3;27:101110. doi: 10.1016/j.mtbio.2024.101110. eCollection 2024 Aug.
Cellular alignment plays a pivotal role in several human tissues, including skeletal muscle, spinal cord and tendon. Various techniques have been developed to control cellular alignment using 3D biomaterials. However, the majority of 3D-aligned scaffolds require invasive surgery for implantation. In contrast, injectable hydrogels provide a non-invasive delivery method, gaining considerable attention for the treatment of diverse conditions, including osteochondral lesions, volumetric muscle loss, and traumatic brain injury. We engineered a biomimetic hydrogel with magnetic responsiveness by combining gellan gum, hyaluronic acid, collagen, and magnetic nanoparticles (MNPs). Collagen type I was paired with MNPs to form magnetic collagen bundles (MCollB), allowing the orientation control of these bundles within the hydrogel matrix through the application of a remote low-intensity magnetic field. This resulted in the creation of an anisotropic architecture. The hydrogel mechanical properties were comparable to those of human soft tissues, such as skeletal muscle, and proof of the aligned hydrogel concept was demonstrated. findings confirmed the absence of toxicity and pro-inflammatory effects. Notably, an increased fibroblast cell proliferation and pro-regenerative activation of macrophages were observed. The study further validated the hydrogel biocompatibility and demonstrated the feasibility of injection with rapid gelation. Consequently, this magnetically controlled injectable hydrogel exhibits significant promise as a minimally invasive, rapid gelling and effective treatment for regenerating various aligned human tissues.
Mater Today Bio. 2024-6-3
J Colloid Interface Sci. 2025-1-15
Front Bioeng Biotechnol. 2022-3-17
ACS Appl Mater Interfaces. 2018-12-19
Front Bioeng Biotechnol. 2025-4-23
Cell Commun Signal. 2023-9-19
Biomater Sci. 2023-9-26
Adv Healthc Mater. 2023-10
Adv Sci (Weinh). 2023-8
Nat Rev Mol Cell Biol. 2023-7
Biomater Adv. 2023-5
Int J Biol Macromol. 2022-9-1