Immune-defensive microspheres promote regeneration of the nucleus pulposus by targeted entrapment of the inflammatory cascade during intervertebral disc degeneration
© 2024 The Authors..
Sustained and intense inflammation is the pathological basis for intervertebral disc degeneration (IVDD). Effective antagonism or reduction of local inflammatory factors may help regulate the IVDD microenvironment and reshape the extracellular matrix of the disc. This study reports an immunomodulatory hydrogel microsphere system combining cell membrane-coated mimic technology and surface chemical modification methods by grafting neutrophil membrane-coated polylactic-glycolic acid copolymer nanoparticles loaded with transforming growth factor-beta 1 (TGF-β1) (T-NNPs) onto the surface of methacrylic acid gelatin anhydride microspheres (GM) via amide bonds. The nanoparticle-microsphere complex (GMT-NNPs) sustained the long-term release of T-NNPs with excellent cell-like functions, effectively bound to pro-inflammatory cytokines, and improved the release kinetics of TGF-β1, maintaining a 36 day-acting release. GM@T-NNPs significantly inhibited lipopolysaccharide-induced inflammation in nucleus pulposus cells in vitro, downregulated the expression of inflammatory factors and matrix metalloproteinase, and upregulated the expression of collagen-II and aggrecan. GM@T-NNPs effectively restored intervertebral disc height and significantly improved the structure and biomechanical function of the nucleus pulposus in a rat IVDD model. The integration of biomimetic technology and nano-drug delivery systems expands the application of biomimetic cell membrane-coated materials and provides a new treatment strategy for IVDD.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:37 |
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| Enthalten in: |
Bioactive materials - 37(2024) vom: 28. März, Seite 132-152 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Zhou, Liang [VerfasserIn] |
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| Links: |
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| Themen: |
Cell membrane-coated mimic |
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| Anmerkungen: |
Date Revised 30.03.2024 published: Electronic-eCollection Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1016/j.bioactmat.2024.03.020 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM370393023 |
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| 245 | 1 | 0 | |a Immune-defensive microspheres promote regeneration of the nucleus pulposus by targeted entrapment of the inflammatory cascade during intervertebral disc degeneration |
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| 520 | |a Sustained and intense inflammation is the pathological basis for intervertebral disc degeneration (IVDD). Effective antagonism or reduction of local inflammatory factors may help regulate the IVDD microenvironment and reshape the extracellular matrix of the disc. This study reports an immunomodulatory hydrogel microsphere system combining cell membrane-coated mimic technology and surface chemical modification methods by grafting neutrophil membrane-coated polylactic-glycolic acid copolymer nanoparticles loaded with transforming growth factor-beta 1 (TGF-β1) (T-NNPs) onto the surface of methacrylic acid gelatin anhydride microspheres (GM) via amide bonds. The nanoparticle-microsphere complex (GMT-NNPs) sustained the long-term release of T-NNPs with excellent cell-like functions, effectively bound to pro-inflammatory cytokines, and improved the release kinetics of TGF-β1, maintaining a 36 day-acting release. GM@T-NNPs significantly inhibited lipopolysaccharide-induced inflammation in nucleus pulposus cells in vitro, downregulated the expression of inflammatory factors and matrix metalloproteinase, and upregulated the expression of collagen-II and aggrecan. GM@T-NNPs effectively restored intervertebral disc height and significantly improved the structure and biomechanical function of the nucleus pulposus in a rat IVDD model. The integration of biomimetic technology and nano-drug delivery systems expands the application of biomimetic cell membrane-coated materials and provides a new treatment strategy for IVDD | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Cell membrane-coated mimic | |
| 650 | 4 | |a Drug release kinetics | |
| 650 | 4 | |a Hydrogel microsphere | |
| 650 | 4 | |a Intervertebral disc degeneration | |
| 650 | 4 | |a Neutrophil membrane | |
| 650 | 4 | |a Nucleus pulposus | |
| 700 | 1 | |a Cai, Feng |e verfasserin |4 aut | |
| 700 | 1 | |a Zhu, Hongyi |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Yichang |e verfasserin |4 aut | |
| 700 | 1 | |a Tang, Jincheng |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Wei |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Ziang |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Jie |e verfasserin |4 aut | |
| 700 | 1 | |a Ding, Zhouye |e verfasserin |4 aut | |
| 700 | 1 | |a Xi, Kun |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Liang |e verfasserin |4 aut | |
| 700 | 1 | |a Gu, Yong |e verfasserin |4 aut | |
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