ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2025
Manipulation of Oxygen Tension in Damaged Regions via Hypoxia-Induced IPN Hydrogel Microspheres for Intervertebral Disc Regeneration.
Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Biomaterial-based extracellular vesicle delivery systems for wound healing: From fabrication to applications.Bioactive materials · 2026Review
- An ECM-mimetic hydrogel for disc repair: reconstituting hypoxia and alleviating NPC senescence to halt intervertebral disc degeneration.Journal of nanobiotechnology · 2026Article
- Current research on the role of HIF in intervertebral disc degeneration.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026Review
- Efficacy and Mechanisms of Duhuo Jisheng Decoction in Treating Intervertebral Disc Degeneration: A Network Pharmacology and Experimental Study.Current medical science · 2026Article
- Enzyme-Integrated Hydrogels for Advanced Biological Applications.Polymer science & technology (Washington, D.C.) · 2026Review
- Hydrogel Microspheres for Biomedical Applications.Small science · 2026Review
- Mesenchymal stem cell and exosome-based therapies for degenerative disc disease: from mechanisms to clinical translation.Frontiers in cell and developmental biology · 2026Review
- Screening and identification of differentially expressed miRNA and mRNA for intervertebral disc degeneration on bioinformatics.European journal of medical research · 2025Article
- Hypoxia and Multilineage Communication in 3D Organoids for Human Disease Modeling.Biomimetics (Basel, Switzerland) · 2025Review
- Manipulation of Oxygen Tension in Damaged Regions via Hypoxia-Induced IPN Hydrogel Microspheres for Intervertebral Disc Regeneration.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
Disruption of low oxygen tension homeostasis during intervertebral disc degeneration inhibits endogenous stem cell viability and function, posing a challenge for endogenous regeneration. Here, to achieve sustained hypoxia manipulation, constructed hypoxia-inducible interpenetrating polymer network (IPN) hydrogel microspheres (HIMS) are constructed by microfluidics to integrate the hypoxic system with a stabilizing network. The IPN is synthesized through a two-step polymerization process, consisting of rapid photo-crosslinked gelatin methacrylate anhydride (GM) polymer I and slow enzyme-crosslinked vanillin-grafted gelatin (GV) polymer II. The enzymatic reaction between GV and laccase is able to create a hypoxic microenvironment to modulate oxygen tension in situ within the injured region. HIMS can reduce microenvironmental oxygen tension by 1/3 and maintain a hypoxic microenvironment for up to 5 days, thereby activating the PI3K/AKT/HIF-1α signaling pathway in endogenous stem cells to promote differentiation into nucleus pulposus-like cells. Additionally, NSC-Exos are loaded onto HIMS to trigger endogenous progenitor/stem cell recruitment and migration. Both in vitro and in vivo assays demonstrate that NSC-Exos@HIMS facilitates stem cell recruitment, targets differentiation, and stimulates extracellular matrix synthesis. Overall, the microspheres established herein provide a novel strategy for manipulating oxygen tension and enhancing endogenous tissue regeneration in injured regions during intervertebral disc degeneration.
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Registered trials
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