The residual bone tumor and defects which is caused by surgical therapy of bone tumor is a major and important problem in clinicals. And the sequential treatment for irradiating residual tumor and repairing bone defects has wildly prospects. In this study, we developed a general modification strategy by gallic acid (GA)-assisted coordination chemistry to prepare black calcium-based materials, which combines the sequential photothermal therapy of bone tumor and bone defects. The GA modification endows the materials remarkable photothermal properties. Under the near-infrared (NIR) irradiation with different power densities, the black GA-modified bone matrix (GBM) did not merely display an excellent performance in eliminating bone tumor with high temperature, but showed a facile effect of the mild-heat stimulation to accelerate bone regeneration. GBM can efficiently regulate the microenvironments of bone regeneration in a spatial-temporal manner, including inflammation/ immune response, vascularization and osteogenic differentiation. Meanwhile, the integrin/PI3K/Akt signaling pathway of bone marrow mesenchymal stem cells (BMSCs) was revealed to be involved in the effect of osteogenesis induced by the mild-heat stimulation. The outcome of this study not only provides a serial of new multifunctional biomaterials, but also demonstrates a general strategy for designing novel blacked calcium-based biomaterials with great potential for clinical use.
基金:
National natural science foundation of China [82372395, 81901892, 31771081]; National Key R & D Program of China [2022YFC2504304, 2022YFE0123500]; Science and Technology Commission of Shanghai Municipality [21ZR1450000]; Joint Belarusian-Chinese Project from State Committee for Science and Technology of the Republic of Belarus [X22KITG-010]; Orthopedic Intelligent Minimally Invasive Diagnosis & Treatment Center, Shanghai Tenth People's Hospital [04.99.18006]; Science and Technology Planning Project of Shenzhen Municipality [JCYJ20210324122612032, JCYJ20220530144613030]; Doctor Research Found of First Affiliated Hospital of Kunming Medical University [2022BS016]; OE Biotech Co. Ltd (Shanghai, China)
Hou Xiaodong,Zhang Lei,Chen Yixing,et al.Photothermal switch by gallic acid-calcium grafts synthesized by coordination chemistry for sequential treatment of bone tumor and regeneration[J].BIOMATERIALS.2025,312:doi:10.1016/j.biomaterials.2024.122724.
APA:
Hou, Xiaodong,Zhang, Lei,Chen, Yixing,Liu, Zhiqing,Zhao, Xinyu...&Zheng, Longpo.(2025).Photothermal switch by gallic acid-calcium grafts synthesized by coordination chemistry for sequential treatment of bone tumor and regeneration.BIOMATERIALS,312,
MLA:
Hou, Xiaodong,et al."Photothermal switch by gallic acid-calcium grafts synthesized by coordination chemistry for sequential treatment of bone tumor and regeneration".BIOMATERIALS 312.(2025)