Abstract
Oligodeoxynucleotides containing deoxycytidyl-deoxyguanosine dinucleotides (CpG ODNs) activate the host immune system, leading to innate and acquired immune responses. The immune stimulatory effects of CpG ODNs are being exploited as a novel therapeutic approach to treatment of human diseases, and some CpG ODNs are being evaluated in clinical trials. The cellular recognition of CpG motifs requires the presence of the Toll-like receptor (TLR) 9, which triggers cell signaling and immune responses. There are three main types of first-generation CpG ODNs, which mimic the immunostimulatory activity of bacterial DNA and are recognized by TLR9, A-, B- and C-Class ODNs. Although all three CpG ODN classes stimulate TLR9-dependent signaling, there are striking differences in the cell types they activate and their dose-dependent immunostimulatory efficacy. Second-generation CpG ODNs, with advanced nucleic acid chemistry and unique modifications to their sequences and structures are being developed. Medicinal chemistry studies suggest that the immunomodulatory activity of CpG ODNs can be altered by site-specific incorporation of modifications in order to develop disease-specific drugs. Both first- and second-generation CpG ODNs have potential for treatment of various human diseases, such as infections, immunodeficiencies, and cancers. This article will focus on the recent advances in developing CpG ODNs as novel anti-cancer therapeutic agents.
Keywords: interferon, natural killer (nk) cell, oligodeoxynucleotides, immunostimulatory, toll-like receptor, cytokines, dendritic cells, immunogenicity, macrophages, transduction pathways
Current Pharmaceutical Design
Title: Synthetic Oligodeoxynucleotides Containing Deoxycytidyl-Deoxyguanosine Dinucleotides (CpG ODNs) and Modified Analogs as Novel Anticancer Therapeutics
Volume: 11 Issue: 22
Author(s): H. Wang, E. Rayburn and R. Zhang
Affiliation:
Keywords: interferon, natural killer (nk) cell, oligodeoxynucleotides, immunostimulatory, toll-like receptor, cytokines, dendritic cells, immunogenicity, macrophages, transduction pathways
Abstract: Oligodeoxynucleotides containing deoxycytidyl-deoxyguanosine dinucleotides (CpG ODNs) activate the host immune system, leading to innate and acquired immune responses. The immune stimulatory effects of CpG ODNs are being exploited as a novel therapeutic approach to treatment of human diseases, and some CpG ODNs are being evaluated in clinical trials. The cellular recognition of CpG motifs requires the presence of the Toll-like receptor (TLR) 9, which triggers cell signaling and immune responses. There are three main types of first-generation CpG ODNs, which mimic the immunostimulatory activity of bacterial DNA and are recognized by TLR9, A-, B- and C-Class ODNs. Although all three CpG ODN classes stimulate TLR9-dependent signaling, there are striking differences in the cell types they activate and their dose-dependent immunostimulatory efficacy. Second-generation CpG ODNs, with advanced nucleic acid chemistry and unique modifications to their sequences and structures are being developed. Medicinal chemistry studies suggest that the immunomodulatory activity of CpG ODNs can be altered by site-specific incorporation of modifications in order to develop disease-specific drugs. Both first- and second-generation CpG ODNs have potential for treatment of various human diseases, such as infections, immunodeficiencies, and cancers. This article will focus on the recent advances in developing CpG ODNs as novel anti-cancer therapeutic agents.
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Wang H., Rayburn E. and Zhang R., Synthetic Oligodeoxynucleotides Containing Deoxycytidyl-Deoxyguanosine Dinucleotides (CpG ODNs) and Modified Analogs as Novel Anticancer Therapeutics, Current Pharmaceutical Design 2005; 11 (22) . https://dx.doi.org/10.2174/1381612054546707
DOI https://dx.doi.org/10.2174/1381612054546707 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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