ArticleMaterials (Basel, Switzerland)2023
Cell-Laden 3D Printed GelMA/HAp and THA Hydrogel Bioinks: Development of Osteochondral Tissue-like Bioinks.
Article in Materials (Basel, Switzerland), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 15 citations in OpenAlex.
- Emerging Nano Bioinks in Bioprinting: Functional Materials, Engineering Strategies, and Biomedical Applications.Materials (Basel, Switzerland) · 2026Review
- Advanced Biomaterial-Based In Vitro Osteoarthritis Models: Integrating Sex as a Biological Variable in Hormonal, Subchondral Bone, and Mechanobiological Pathways.Journal of functional biomaterials · 2026Review
- Hydrogels for Osteochondral Interface Regeneration: Biomaterial Types, Processes, and Animal Models.Gels (Basel, Switzerland) · 2025Review
- The Use of Gelatin Methacrylate (GelMA) in Cartilage Tissue Engineering: A Comprehensive Review.Bioengineering (Basel, Switzerland) · 2025Review
- 3D bioprinted scaffolds for osteochondral regeneration: advancements and applications.Materials today. Bio · 2025Review
- Application and progress of temperature-sensitive hydrogels in cartilage injury repair.Frontiers in bioengineering and biotechnology · 2025Review
- Tissue engineering and future directions in regenerative medicine for knee cartilage repair: a comprehensive review.Croatian medical journal · 2024Review
- Three-Dimensional Printing Strategies for Enhanced Hydrogel Applications.Gels (Basel, Switzerland) · 2024Review
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 3 countries.
Funding
Abstract
Osteochondral (OC) disorders such as osteoarthritis (OA) damage joint cartilage and subchondral bone tissue. To understand the disease, facilitate drug screening, and advance therapeutic development, in vitro models of OC tissue are essential. This study aims to create a bioprinted OC miniature construct that replicates the cartilage and bone compartments. For this purpose, two hydrogels were selected: one composed of gelatin methacrylate (GelMA) blended with nanosized hydroxyapatite (nHAp) and the other consisting of tyramine-modified hyaluronic acid (THA) to mimic bone and cartilage tissue, respectively. We characterized these hydrogels using rheological testing and assessed their cytotoxicity with live-dead assays. Subsequently, human osteoblasts (hOBs) were encapsulated in GelMA-nHAp, while micropellet chondrocytes were incorporated into THA hydrogels for bioprinting the osteochondral construct. After one week of culture, successful OC tissue generation was confirmed through RT-PCR and histology. Notably, GelMA/nHAp hydrogels exhibited a significantly higher storage modulus (G') compared to GelMA alone. Rheological temperature sweeps and printing tests determined an optimal printing temperature of 20 °C, which remained unaffected by the addition of nHAp. Cell encapsulation did not alter the storage modulus, as demonstrated by amplitude sweep tests, in either GelMA/nHAp or THA hydrogels. Cell viability assays using Ca-AM and EthD-1 staining revealed high cell viability in both GelMA/nHAp and THA hydrogels. Furthermore, RT-PCR and histological analysis confirmed the maintenance of osteogenic and chondrogenic properties in GelMA/nHAp and THA hydrogels, respectively. In conclusion, we have developed GelMA-nHAp and THA hydrogels to simulate bone and cartilage components, optimized 3D printing parameters, and ensured cell viability for bioprinting OC constructs.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.