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| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Xu, Yan Xu, Chao Song, Huan Feng, Xiaobo Ma, Liang Zhang, Xiaoguang Li, Gaocai Mu, Congpu Tan, Lei Zhang, Zhengdong Liu, Zhongyuan Luo, Zhiqiang Yang, Cao |
| Abstract | The complexity of repairing large segment defects and eradicating residual tumor cell puts the osteosarcoma clinical management challenging. Current biomaterial design often overlooks the crucial role of precisely regulating innervation in bone regeneration. Here, we develop a Germanium Selenium (GeSe) co-doped polylactic acid (PLA) nanofiber membrane-coated tricalcium phosphate bioceramic scaffold (TCP-PLA/GeSe) that mimics the bone-periosteum structure. This biomimetic scaffold offers a dual functionality, combining piezoelectric and photothermal conversion capabilities while remaining biodegradable. When subjected to ultrasound irradiation, the US-electric stimulation of TCP-PLA/GeSe enables spatiotemporal control of neurogenic differentiation. This feature supports early innervation during bone formation, promoting early neurogenic differentiation of Schwann cells (SCs) by increasing intracellular Ca2+ and subsequently activating the PI3K-Akt and Ras signaling pathways. The biomimetic scaffold also demonstrates exceptional osteogenic differentiation potential under ultrasound irradiation. In rabbit model of large segment bone defects, the TCP-PLA/GeSe demonstrates promoted osteogenesis and nerve fibre ingrowth. The combined attributes of high photothermal conversion capacity and the sustained release of anti-tumor selenium from the TCP-PLA/GeSe enable the synergistic eradication of osteosarcoma both in vitro and in vivo. This strategy provides new insights on designing advanced biomaterials of repairing large segment bone defect and osteosarcoma. |
| Related Links | https://jnanobiotechnology.biomedcentral.com/counter/pdf/10.1186/s12951-024-02430-7.pdf |
| Ending Page | 17 |
| Page Count | 17 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| ISSN | 14773155 |
| DOI | 10.1186/s12951-024-02430-7 |
| Journal | Journal of Nanobiotechnology |
| Issue Number | 1 |
| Volume Number | 22 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2024-05-15 |
| Access Restriction | Open |
| Subject Keyword | Biotechnology Nanotechnology Molecular Medicine Biomimetic scaffold Spatiotemporal regulation Innervation Osteosarcoma Bone regeneration |
| Content Type | Text |
| Resource Type | Article |
| Subject | Bioengineering Pharmaceutical Science Medicine Applied Microbiology and Biotechnology Biomedical Engineering Molecular Medicine Nanoscience and Nanotechnology |
| Journal Impact Factor | 10.6/2023 |
| 5-Year Journal Impact Factor | 11.4/2023 |
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