International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 278, P. 134597 - 134597
Published: Aug. 8, 2024
Language: Английский
International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 278, P. 134597 - 134597
Published: Aug. 8, 2024
Language: Английский
Environmental Toxicology, Journal Year: 2024, Volume and Issue: 39(7), P. 4066 - 4085
Published: May 10, 2024
Abstract Osteoporosis (OP) can result in slower bone regeneration than the normal condition due to abnormal oxidative stress and high levels of reactive oxygen species (ROS), a detrimental for formation, making OP‐related healing significant clinical challenge. As osteogenic differentiation ability marrow mesenchymal stem cells (BMSCs) is closely related regeneration; currently, this study assessed effects Picein on BMSCs vitro osteoporotic defect vivo. Cell viability was determined by CCK‐8 assay. The production malonaldehyde, superoxide dismutase activities, glutathione evaluated using commercially available kits, flow cytometry analysis adopted detect macrophage polarization. Osteogenic capacity alkaline phosphatase (ALP) activity, ALP staining, Alizarin red S staining. expression osteogenic‐related proteins (OPN, Runx‐2, OCN) genes (ALP, BMP‐4, COL‐1, Osterix) were Western blotting real‐time PCR (RT‐PCR). In addition, proliferation, migration ability, angiogenic human umbilical vein endothelial (HUVECs) EdU scratch test, transwell assay, tube formation respectively. Angiogenic‐related (VEGF, vWF, CD31) also RT‐PCR. Results showed that alleviated erastin‐induced stress, enhanced BMSCs, angiogenesis HUVECs, protects against ferroptosis through Nrf2/HO‐1/GPX4 axis. Moreover, regulate immune microenvironment promoting polarization M2 macrophages vitro. reduce inflammation promotes OP rat models Altogether, these results suggested promote alleviate via pathway, offering as novel antioxidant agent treating defect.
Language: Английский
Citations
13Advanced Healthcare Materials, Journal Year: 2024, Volume and Issue: 13(11)
Published: Jan. 16, 2024
Targeting macrophages can facilitate the site-specific repair of critical bone defects. Herein, a composite hydrogel, gelatin-Bletilla striata polysaccharide-mesoporous bioactive glass hydrogel (GBMgel), is constructed via self-assembly mesoporous on polysaccharide structures, through Schiff base reaction. GBMgel efficiently capture and drive recruitment seed stem cells vascular budding required for regeneration in early stages injury, observed sustained release inorganic silicon ions further enhances matrix deposition, mineralization, maturation. Moreover, use macrophage-depleted rat calvarial defect models confirms that GBMgel, with ligand-selective macrophage targeting, increases area proportion mature bone. Mechanistic studies reveal upregulates TLR4/NF-κB MAPK pathways JAK/STAT3 pathway later stages; thus initiating polarization at different time points. In conclusion, this study based endogenous self-healing properties macrophages, which cell homing, provides research theoretical basis upon tissue be reshaped regenerated using body's immune power, providing new strategy treatment
Language: Английский
Citations
9Bioactive Materials, Journal Year: 2025, Volume and Issue: 48, P. 200 - 216
Published: Feb. 19, 2025
Language: Английский
Citations
1Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 498, P. 155139 - 155139
Published: Aug. 24, 2024
Language: Английский
Citations
8Small, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 21, 2025
Abstract As the global population ages, an increasing number of elderly people are experiencing weakened bone regenerative capabilities, resulting in slower repair processes and associated risks various complications. This review outlines research progress on biomaterials that promote through immunotherapy. examines how manufacturing technologies such as 3D printing, electrospinning, microfluidic technology contribute to enhancing therapeutic effects these biomaterials. Following this, it provides detailed introductions anti‐osteoporosis drug delivery systems, injectable hydrogels, nanoparticles, engineered exosomes, well tissue engineering materials coatings used immunomodulation. Moreover, critically analyzes current limitations biomaterial‐mediated immunotherapy explores future directions for material‐mediated aims inspire new approaches broaden perspectives addressing challenges aging by exploring innovative strategies.
Language: Английский
Citations
0Journal of Drug Delivery Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 106829 - 106829
Published: March 1, 2025
Language: Английский
Citations
0International Journal of Polymeric Materials, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 17
Published: March 24, 2025
Language: Английский
Citations
0Materials Today Bio, Journal Year: 2025, Volume and Issue: unknown, P. 101884 - 101884
Published: May 1, 2025
Language: Английский
Citations
0Open Life Sciences, Journal Year: 2024, Volume and Issue: 19(1)
Published: Jan. 1, 2024
Abstract Large segmental bone defects are commonly operated with autologous grafting, which has limited sources and poses additional surgical risks. In this study, we fabricated poly(lactide- co -glycolic acid) (PLGA)/β-tricalcium phosphate (β-TCP) composite membranes by electrostatic spinning further promoted osteogenesis regulating the release of β-TCP in hope replacing grafts clinical practice. The addition improved mechanical strength PLGA 2.55 times. Moreover, could accelerate degradation neutralize negative effects acidification microenvironment caused degradation. vitro experiments revealed that PLGA/TCP10 biocompatible released can modulate activity osteoblasts enhancing calcium ions concentration damaged area pH local microenvironment. Simultaneously, an increase moderate lactate content microenvironment, synergistically promoting tube-forming effect human umbilical vein endothelial cells. Therefore, it is potential to utilize PLGA/TCP bioactive at site promote regeneration.
Language: Английский
Citations
3International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 278, P. 134597 - 134597
Published: Aug. 8, 2024
Language: Английский
Citations
3