Potential applications of nanoparticles for tumor microenvironment remodeling to ameliorate cancer immunotherapy
| Autor: | Chunlan Wang, Xudong Zhang, Jianhua Fu, Yuzhuo Bai, Yu Liu, Longlan Gao, Li Shi, Xiuli Xing, Yun Wang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Stromal cell
medicine.medical_treatment Pharmaceutical Science Antineoplastic Agents 02 engineering and technology 030226 pharmacology & pharmacy Immune tolerance Cell therapy Immunomodulation 03 medical and health sciences 0302 clinical medicine Immune system Cancer immunotherapy Neoplasms medicine Tumor Microenvironment Animals Humans Immunologic Factors Tumor microenvironment business.industry Immunotherapy 021001 nanoscience & nanotechnology Chimeric antigen receptor Cancer research Nanoparticles 0210 nano-technology business |
| Zdroj: | International journal of pharmaceutics. 570 |
| ISSN: | 1873-3476 |
| Popis: | In recent years, researchers have made significant innovations in the field of tumor immunotherapy based on the knowledge of biology, oncology, and immunology. Tumor immunotherapy involves the use of immune checkpoint inhibitors and CAR (chimeric antigen receptor)-T cell therapy. As compared with conventional chemotherapy, immunotherapy is a potential approach to induce a more powerful immune response against tumor in the patient suffering from the advanced stage malignancy. Regardless of the developments made, a large number of clinical studies have confirmed that a substantial number of cancer patients still demonstrate non-responsiveness to immunotherapy, mainly due to the immunomodulating interactions of tumor cells with the immunosuppressive tumor microenvironment (iTME). It leads to immune tolerance of tumors and influences the efficacy of immunotherapy. This immune failure could be attributed to a complex immunosuppressive network comprising stromal and inflammatory cells, vessel system, ECM (extracellular matrix) and the cytokines released in tumor microenvironment (TME). The antitumor immune activity can be enhanced at different stages of tumor development by selective suppression of inhibitory pathways in the TME. This specific task can be achieved by using nano-sized drug delivery tools which are specific in their action and biocompatible in nature. Several recent studies have described the use of nanoparticles for iTME remodeling through the specific elimination of immunosuppressive cells, obstructing immune checkpoints, promotion of inflammatory cytokines, and amending the regulatory cells of the immune system. The efficacy of current immunotherapy can be improved by nanoparticle-mediated remodeling of iTME. |
| Databáze: | OpenAIRE |
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