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Multifunctional nanoplatforms deciphering immune resistance in bone tumors: cooperative delivery, immune
Jiahang Li1,2,3, Chao Yang4, Liming Wang5
1Second Ward of Bone and Soft Tissue Tumor Surgery, Cancer Hospital of Dalian University of Technology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, No. 44 Xiaoheyan Road, Dadong District, Shenyang, 110042, Liaoning, China.
Abstract:
Bone tumors, encompassing primary sarcomas such as osteosarcoma and secondary skeletal metastases from carcinomas, present a stubborn clinical problem. Their treatment is hampered by three interconnected barriers: the physical impediment of a mineralized matrix that restricts drug access, a profoundly immunosuppressive microenvironment that inactivates antitumor immunity, and the lack of endogenous tissue regeneration following therapeutic intervention. Conventional modalities-including systemic chemotherapy, surgical resection, and even modern immunotherapies-often yield disappointing results against these complex lesions. In this context, nanotechnology offers a fresh therapeutic perspective. Engineered nanoplatforms are designed to home in on bone lesions, disrupt local immunosuppressive networks, and re-establish immunosurveillance. This review critically examines how these integrated systems counteract immune resistance. We focus on platforms that achieve precise bone targeting, reprogram the local immune landscape, and, crucially, coordinate the timing of tumor clearance with the process of functional bone repair. By tackling the dual challenges of immune evasion and structural defects, these multifunctional agents mark a significant departure from conventional approaches, holding the potential to simultaneously eradicate tumors and restore skeletal integrity.
Insights
Nanotechnology offers new hope for bone tumors by overcoming treatment barriers like drug resistance and immune suppression. These advanced platforms target tumors, restore immune function, and promote bone repair for better outcomes.
Area of Science:
- Oncology
- Nanomedicine
- Immunology
Background:
- Bone tumors, including osteosarcoma and skeletal metastases, pose significant treatment challenges.
- Key barriers include the mineralized matrix limiting drug delivery, an immunosuppressive tumor microenvironment, and poor tissue regeneration.
- Conventional treatments often show limited efficacy against these complex bone lesions.
Purpose of the Study:
- To review the potential of nanotechnology in overcoming the limitations of conventional bone tumor therapies.
- To examine how engineered nanoplatforms can target bone lesions, modulate the immune microenvironment, and promote bone repair.
- To highlight integrated nanotechnological approaches for simultaneous tumor eradication and skeletal integrity restoration.
Main Methods:
- Review of current literature on nanotechnology applications in bone tumor treatment.
- Analysis of nanoplatforms designed for bone targeting and immune modulation.
- Examination of strategies for coordinating tumor clearance with functional bone regeneration.
Main Results:
- Engineered nanoplatforms demonstrate potential to overcome physical and immunological barriers in bone tumors.
- Nanotechnology enables precise targeting of bone lesions and disruption of immunosuppressive networks.
- Multifunctional nanomedicines can coordinate tumor elimination with skeletal repair processes.
Conclusions:
- Nanotechnology presents a promising therapeutic avenue for challenging bone tumors.
- Integrated nanoplatforms offer a novel strategy to address immune evasion and structural defects in bone lesions.
- These advanced agents hold potential for simultaneously eradicating tumors and restoring bone integrity.
