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Zeng YC, Young OJ, Wintersinger CM, Anastassacos FM, MacDonald JI, Isinelli G, Dellacherie MO, Sobral M, Bai H, Graveline AR, Vernet A, Sanchez M, Mulligan K, Choi Y, Ferrante TC, Keskin DB, Fell GG, Neuberg D, Wu CJ, Mooney DJ, Kwon IC, Ryu JH, Shih WM. Fine tuning of CpG spatial distribution with DNA origami for improved cancer vaccination. NATURE NANOTECHNOLOGY 2024; 19:1055-1065. [PMID: 38491184 DOI: 10.1038/s41565-024-01615-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 01/18/2024] [Indexed: 03/18/2024]
Abstract
Multivalent presentation of ligands often enhances receptor activation and downstream signalling. DNA origami offers a precise nanoscale spacing of ligands, a potentially useful feature for therapeutic nanoparticles. Here we use a square-block DNA origami platform to explore the importance of the spacing of CpG oligonucleotides. CpG engages Toll-like receptors and therefore acts to activate dendritic cells. Through in vitro cell culture studies and in vivo tumour treatment models, we demonstrate that square blocks induce Th1 immune polarization when CpG is spaced at 3.5 nm. We observe that this DNA origami vaccine enhances DC activation, antigen cross-presentation, CD8 T-cell activation, Th1-polarized CD4 activation and natural-killer-cell activation. The vaccine also effectively synergizes with anti-PD-L1 for improved cancer immunotherapy in melanoma and lymphoma models and induces long-term T-cell memory. Our results suggest that DNA origami may serve as a platform for controlling adjuvant spacing and co-delivering antigens in vaccines.
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Affiliation(s)
- Yang C Zeng
- Department of Cancer Biology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA
| | - Olivia J Young
- Department of Cancer Biology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA
- Harvard-Massachusetts Institute of Technology (MIT) Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Christopher M Wintersinger
- Department of Cancer Biology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA
| | - Frances M Anastassacos
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA
| | - James I MacDonald
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Giorgia Isinelli
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
- Department of Drug and Health Sciences, University of Catania, Catania, Italy
| | - Maxence O Dellacherie
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Miguel Sobral
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Haiqing Bai
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Amanda R Graveline
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Andyna Vernet
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Melinda Sanchez
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Kathleen Mulligan
- Department of Cancer Biology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Youngjin Choi
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul, Republic of Korea
| | - Thomas C Ferrante
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
| | - Derin B Keskin
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Geoffrey G Fell
- Department of Data Science, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Donna Neuberg
- Department of Data Science, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Catherine J Wu
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - David J Mooney
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Ick Chan Kwon
- Department of Cancer Biology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul, Republic of Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, Republic of Korea
| | - Ju Hee Ryu
- Department of Cancer Biology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA.
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul, Republic of Korea.
| | - William M Shih
- Department of Cancer Biology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA.
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, USA.
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, USA.
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Tiwari RK, Gupta CL, Bajpai P. Impelling TLR9: Road to perspective vaccine for visceral leishmaniasis. Drug Dev Res 2020; 83:222-224. [PMID: 32216115 DOI: 10.1002/ddr.21662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 02/04/2020] [Accepted: 03/11/2020] [Indexed: 11/06/2022]
Abstract
Recent trends in immunotherapy have shown enthusiasm in exploring Toll-like receptors (TLRs) for designing therapeutical interventions against numerous deadly diseases. TLRs are subfamily of pathogen recognition receptor playing pivotal role in innate immunity. TLR9 is one such critical member belonging to intracellular TLRs which is associated with mounting inflammatory response in response to intruders. Explorative studies have shown CG motifs from the prokaryotic origin as activators of TLR9 culminating in the expression of NFκB. These CG rich short stranded DNA sequences have been further delineated into different classes based on their structural specificities and immunomodulatory properties. Here we discuss the progress of how activation of TLR9 can be utilized with novel parasitic CpG islands to function as potential adjuvants specifically against protozoan parasitic diseases primarily visceral leishmaniasis caused by Leishmania donovani.
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Affiliation(s)
- Rohit Kumar Tiwari
- Department of Biosciences, Integral University, Lucknow, Uttar Pradesh, India
| | - Chhedi Lal Gupta
- Department of Biosciences, Integral University, Lucknow, Uttar Pradesh, India
| | - Preeti Bajpai
- Department of Biosciences, Integral University, Lucknow, Uttar Pradesh, India
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Miyamoto N, Mochizuki S, Sakurai K. Designing an immunocyte-targeting delivery system by use of beta-glucan. Vaccine 2017; 36:186-189. [PMID: 29174675 DOI: 10.1016/j.vaccine.2017.11.053] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 11/10/2017] [Accepted: 11/10/2017] [Indexed: 01/05/2023]
Abstract
A β-1,3-d-glucan called Schizophyllan (SPG) can form a novel complex with homo oligodeoxynucleotides (ODNs) via the combination of hydrogen bonding and hydrophobic interactions. Dectin-1 is a major receptor involved in the recognition of β-1,3-d-glucans and expressed on antigen presenting cells (APCs) including macrophages, dendritic cells, monocytes, neutrophils, and a subset of T cells. Therefore, the SPG/ODN complex can be used as APCs cell-specific delivery of functional ODNs including unmethylated CpG sequences (CpG-ODNs). In fact, CpG-ODN/SPG complex induced high antibody titers when it was administered to cynomolgus monkeys as adjutant of influenza vaccine. These results indicate that SPG can be an excellent immunocyte-targeting drug delivery system.
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Affiliation(s)
- Noriko Miyamoto
- Department of Chemistry and Biochemistry, University of Kitakyushu, Fukuoka, Japan.
| | - Shinichi Mochizuki
- Department of Chemistry and Biochemistry, University of Kitakyushu, Fukuoka, Japan
| | - Kazuo Sakurai
- Department of Chemistry and Biochemistry, University of Kitakyushu, Fukuoka, Japan
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Minari J, Mochizuki S, Matsuzaki T, Adachi Y, Ohno N, Sakurai K. Enhanced cytokine secretion from primary macrophages due to Dectin-1 mediated uptake of CpG DNA/β-1,3-glucan complex. Bioconjug Chem 2010; 22:9-15. [PMID: 21126031 DOI: 10.1021/bc1001196] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Unmethylated CpG sequences (CpG DNA) can induce Th1 response and thus become a potential immunotherapeutic agent. A key step in the treatment is to transport CpG DNA to its receptor TLR9 located in the endocytosis pathway of target immune cells. For the effective transport, we prepared a novel complex from a β-1,3-glucan schizophyllan (SPG) and CpG DNA, and administered the complex to murine peritoneal macrophages that had been previously activated by thioglycollate and expressed a major β-1,3-glucan receptor Dectin-1 on the cellular surface. Flow cytometric analysis and microscopic observation showed that the complex was taken up by the macrophage through Dectin-1 mediated pathway. Indeed, ELISA demonstrated that IL-12 production was increased sigmoidally with increasing SPG/CpG DNA ratio in the complexation, and reached the maximum at the SPG-rich composition. In the present work, we describe a new approach to deliver CpG DNA to immune cells by use of a β-1,3-glucan/DNA complex.
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Affiliation(s)
- Jusaku Minari
- Department of Chemistry and Biochemistry, The University of Kitakyushu, 1-1, Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0135, Japan
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Abstract
Viral vectors are potent gene delivery platforms used for the treatment of genetic and acquired diseases. However, just as viruses have evolved to infect cells efficiently, the immune system has evolved to fight off what it perceives as invading pathogens. Therefore, innate immunity and antigen-specific adaptive immune responses against vector-derived antigens reduce the efficacy and stability of in vivo gene transfer. In addition, a number of vectors are derived from parent viruses that humans encounter through natural infection, resulting in preexisting antibodies and possibly in memory responses against vector antigens. Similarly, antibody and T-cell responses may be directed against therapeutic gene products that often differ from the endogenous nonfunctional or absent protein that is being replaced. As details and mechanisms of such immune reactions are uncovered, novel strategies are being developed, and vectors are being specifically engineered to avoid, suppress or manipulate the response, ideally resulting in sustained expression and immune tolerance to the transgene product. This review provides a summary of our current knowledge of the interactions between the immune system adeno-associated virus, adenoviral and lentiviral vectors, and their transgene products.
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