期刊
BIOMATERIALS
卷 34, 期 27, 页码 6464-6472出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biomaterials.2013.05.016
关键词
pH-sensitive polymer; Carcinogenesis; Inflammation; Apoptosis; Immunotherapy
资金
- National Institutes of Health (NIH) [AI088597]
- NSF CAREER Award
- National Science Foundation [DGE-0718124]
Signaling through toll-like receptor 9 (TLR9) has been exploited for cancer therapy. The stimulation of TLR9 leads to two bifurcating signaling pathways - NF-kappa B-dependent pro-inflammatory cytokines pathway and IRF-7-dependent type I interferons (IFNs) pathway. In this study, we employ polymer blend particles to present the synthetic ligand, CpG oligonucleotides (CpG ODNs), to TLR9. The polymer blend particles are made from the blend of pH-insensitive and pH-sensitive copolymer. By tailoring the composition of the pH-sensitive polymer, CpG ODNs are presented to TLR9 in a way that only activates the IRF-7 signaling pathway. CpG ODNs have been used for cancer therapy in both preclinical and clinical studies. The selective activation of IRF-7 could potentially enhance the apoptosis of tumor cells and immunological control of tumor progression without inadvertently activating NF-kappa B-dependent oncogenesis. (C) 2013 Elsevier Ltd. All rights reserved.
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