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Michael FS, Hamouda MB, Stupak J, Li J, Pearson A, Sauvageau J. Identification of glycosylated nucleosides in small synthetic glyco-RNAs. Chembiochem 2024; 25:e202300784. [PMID: 38116890 DOI: 10.1002/cbic.202300784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 12/19/2023] [Indexed: 12/21/2023]
Abstract
Recently, the post-transcriptional modification of RNA with N-glycans was reported, changing the paradigm that RNAs are not commonly N-glycosylated. Moreover, glycan modifications of RNA are investigated for therapeutic targeting purposes. But the glyco-RNA field is in its infancy with many challenges to overcome. One question is how to accurately characterize glycosylated RNA constructs. Thus, we generated glycosylated forms of Y5 RNA mimics, a short non-coding RNA. The simple glycans lactose and sialyllactose were attached to the RNA backbone using azide-alkyne cycloadditions. Using nuclease digestion followed by LC-MS, we confirmed the presence of the glycosylated nucleosides, and characterized the chemical linkage. Next, we probed if glycosylation would affect the cellular response to Y5 RNA. We treated human foreskin fibroblasts in culture with the generated compounds. Key transcripts in the innate immune response were quantified by RT-qPCR. We found that under our experimental conditions, exposure of cells to the Y5 RNA did not trigger an interferon response, and glycosylation of this RNA did not have an impact. Thus, we have identified a successful approach to chemically characterize synthetic glyco-RNAs, which will be critical for further studies to elucidate how the presence of complex glycans on RNA affects the cellular response.
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Affiliation(s)
- Frank St Michael
- Human Health Therapeutics, National Research Council, 100 Sussex Dr., K1N 5A2, Ottawa, Ontario, Canada
| | - Maha Ben Hamouda
- INRS-Centre Armand-Frappier Santé Biotechnologie, 531, boul. des Prairies, Laval, Québec, H7V 1B7, Canada
| | - Jacek Stupak
- Human Health Therapeutics, National Research Council, 100 Sussex Dr., K1N 5A2, Ottawa, Ontario, Canada
| | - Jianjun Li
- Human Health Therapeutics, National Research Council, 100 Sussex Dr., K1N 5A2, Ottawa, Ontario, Canada
| | - Angela Pearson
- INRS-Centre Armand-Frappier Santé Biotechnologie, 531, boul. des Prairies, Laval, Québec, H7V 1B7, Canada
| | - Janelle Sauvageau
- Human Health Therapeutics, National Research Council, 100 Sussex Dr., K1N 5A2, Ottawa, Ontario, Canada
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2
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Smidt JM, Lykke L, Stidsen CE, Pristovšek N, Gothelf K. Synthesis of peptide-siRNA conjugates via internal sulfonylphosphoramidate modifications and evaluation of their in vitro activity. Nucleic Acids Res 2024; 52:49-58. [PMID: 37971296 PMCID: PMC10783514 DOI: 10.1093/nar/gkad1015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/28/2023] [Accepted: 10/20/2023] [Indexed: 11/19/2023] Open
Abstract
Conjugates of therapeutic oligonucleotides (ONs) including peptide conjugates, provide a potential solution to the major challenge of specific tissue delivery faced by this class of drugs. Conjugations are often positioned terminal at the ONs, although internal placement of other chemical modifications are known to be of critical importance. The introduction of internal conjugation handles in chemically modified ONs require highly specialized and expensive nucleoside phosphoramidites. Here, we present a method for synthesizing a library of peptide-siRNA conjugates by conjugation at internal phosphorous positions via sulfonylphosphoramidate modifications incorporated into the sense strand. The sulfonylphosphoramidate modification offers benefits as it can be directly incorporated into chemically modified ONs by simply changing the oxidation step during synthesis, and furthermore holds the potential to create multifunctionalized therapeutic ONs. We have developed a workflow using a novel pH-controlled amine-to-amine linker that yields peptide-siRNA conjugates linked via amide bonds, and we have synthesized conjugates between GLP1 peptides and a HPRT1 siRNA as a model system. The in vitro activity of the conjugates was tested by GLP1R activity and knockdown of the HPRT1 gene. We found that conjugation near the 3'-end is more favorable than certain central internal positions and different internal conjugation strategies were compared.
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Affiliation(s)
- Jakob Melgaard Smidt
- Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, 8000 Aarhus, Denmark
| | - Lennart Lykke
- Research Chemistry, Novo Nordisk A/S, Novo Nordisk Park, 2760 Måløv, Denmark
| | - Carsten Enggaard Stidsen
- Centre for Functional Assays and Screening, Novo Nordisk A/S, Novo Nordisk Park, 2760 Måløv, Denmark
| | - Nuša Pristovšek
- Centre for Functional Assays and Screening, Novo Nordisk A/S, Novo Nordisk Park, 2760 Måløv, Denmark
| | - Kurt V Gothelf
- Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry, Aarhus University, 8000 Aarhus, Denmark
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Bogen O, Araldi D, Sucher A, Kober K, Ohara PT, Levine JD. Isolectin B4 (IB4)-conjugated streptavidin for the selective knockdown of proteins in IB4-positive (+) nociceptors. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.12.18.572242. [PMID: 38260446 PMCID: PMC10802253 DOI: 10.1101/2023.12.18.572242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
In vivo analysis of protein function in nociceptor subpopulations using antisense oligonucleotides and short interfering RNAs is limited by their non-selective cellular uptake. To address the need for selective transfection methods, we covalently linked isolectin B4 (IB4) to streptavidin and analyzed whether it could be used to study protein function in IB4(+)-nociceptors. Rats treated intrathecally with IB4-conjugated streptavidin complexed with biotinylated antisense oligonucleotides for protein kinase C epsilon (PKCε) mRNA were found to have: a) less PKCε in dorsal root ganglia (DRG), b) reduced PKCε expression in IB4(+) but not IB4(-) DRG neurons, and c) fewer transcripts of the PKCε gene in the DRG. This knockdown in PKCε expression in IB4(+) DRG neurons is sufficient to reverse hyperalgesic priming, a rodent model of chronic pain that is dependent on PKCε in IB4(+)-nociceptors. These results establish that IB4-streptavidin can be used to study protein function in a defined subpopulation of nociceptive C-fiber afferents.
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Bogen O, Araldi D, Sucher A, Kober K, Ohara PT, Levine JD. Isolectin B4 (IB4)-conjugated streptavidin for the selective knockdown of proteins in IB4-positive (+) nociceptors. Mol Pain 2024; 20:17448069241230419. [PMID: 38246917 PMCID: PMC10851726 DOI: 10.1177/17448069241230419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 01/12/2024] [Indexed: 01/23/2024] Open
Abstract
In vivo analysis of protein function in nociceptor subpopulations using antisense oligonucleotides and short interfering RNAs is limited by their non-selective cellular uptake. To address the need for selective transfection methods, we covalently linked isolectin B4 (IB4) to streptavidin and analyzed whether it could be used to study protein function in IB4(+)-nociceptors. Rats treated intrathecally with IB4-conjugated streptavidin complexed with biotinylated antisense oligonucleotides for protein kinase C epsilon (PKCε) mRNA were found to have: (a) less PKCε in dorsal root ganglia (DRG), (b) reduced PKCε expression in IB4(+) but not IB4(-) DRG neurons, and (c) fewer transcripts of the PKCε gene in the DRG. This knockdown in PKCε expression in IB4(+) DRG neurons is sufficient to reverse hyperalgesic priming, a rodent model of chronic pain that is dependent on PKCε in IB4(+)-nociceptors. These results establish that IB4-streptavidin can be used to study protein function in a defined subpopulation of nociceptive C-fiber afferents.
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Affiliation(s)
- Oliver Bogen
- Department of Oral & Maxillofacial Surgery, UCSF Pain and Addiction Research Center, University of California, San Francisco, CA, USA
| | - Dionéia Araldi
- Department of Oral & Maxillofacial Surgery, UCSF Pain and Addiction Research Center, University of California, San Francisco, CA, USA
| | - Anatol Sucher
- School of Nursing, University of California, San Francisco, CA, USA
| | - Kord Kober
- School of Nursing, University of California, San Francisco, CA, USA
| | - Peter T Ohara
- Department of Anatomy, University of California, San Francisco, CA, USA
| | - Jon D Levine
- Department of Oral & Maxillofacial Surgery, UCSF Pain and Addiction Research Center, University of California, San Francisco, CA, USA
- Division of Neuroscience, Department of Medicine, University of California, San Francisco, CA, USA
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5
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Ruiz-Ciancio D, Lin LH, Veeramani S, Barros MN, Sanchez D, Di Bartolo AL, Masone D, Giangrande PH, Mestre MB, Thiel WH. Selection of a novel cell-internalizing RNA aptamer specific for CD22 antigen in B cell acute lymphoblastic leukemia. MOLECULAR THERAPY. NUCLEIC ACIDS 2023; 33:698-712. [PMID: 37662970 PMCID: PMC10469072 DOI: 10.1016/j.omtn.2023.07.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 07/25/2023] [Indexed: 09/05/2023]
Abstract
Despite improvements in B cell acute lymphoblastic leukemia (B-ALL) treatment, a significant number of patients experience relapse of the disease, resulting in poor prognosis and high mortality. One of the drawbacks of current B-ALL treatments is the high toxicity associated with the non-specificity of chemotherapeutic drugs. Targeted therapy is an appealing strategy to treat B-ALL to mitigate these toxic off-target effects. One such target is the B cell surface protein CD22. The restricted expression of CD22 on the B-cell lineage and its ligand-induced internalizing properties make it an attractive target in cases of B cell malignancies. To target B-ALL and the CD22 protein, we performed cell internalization SELEX (Systematic Evolution of Ligands by EXponential enrichment) followed by molecular docking to identify internalizing aptamers specific for B-ALL cells that bind the CD22 cell-surface receptor. We identified two RNA aptamers, B-ALL1 and B-ALL2, that target human malignant B cells, with B-ALL1 the first documented RNA aptamer interacting with the CD22 antigen. These B-ALL-specific aptamers represent an important first step toward developing novel targeted therapies for B cell malignancy treatments.
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Affiliation(s)
- Dario Ruiz-Ciancio
- Instituto de Ciencias Biomédicas (ICBM), Facultad de Ciencias Médicas, Universidad Católica de Cuyo, Av. José Ignacio de la Roza 1516, Rivadavia, San Juan 5400, Argentina
- National Council of Scientific and Technical Research (CONICET), Godoy Cruz 2290, Ciudad Autónoma de Buenos Aires C1425FQB, Argentina
| | - Li-Hsien Lin
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52246, USA
| | - Suresh Veeramani
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52246, USA
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA 52242, USA
| | - Maya N. Barros
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52246, USA
| | - Diego Sanchez
- Instituto de Medicina y Biología Experimental de Cuyo (IMBECU), CONICET, CCT-Mendoza 5500, Argentina
| | - Ary Lautaro Di Bartolo
- Instituto de Histología y Embriología de Mendoza (IHEM) – Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Cuyo (UNCuyo), Mendoza M5502JMA, Argentina
| | - Diego Masone
- Instituto de Histología y Embriología de Mendoza (IHEM) – Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Cuyo (UNCuyo), Mendoza M5502JMA, Argentina
| | - Paloma H. Giangrande
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52246, USA
- VP Platform Discovery Sciences, Biology, Wave Life Sciences, 733 Concord Avenue, Cambridge, MA 02138, USA
| | - María Belén Mestre
- Instituto de Ciencias Biomédicas (ICBM), Facultad de Ciencias Médicas, Universidad Católica de Cuyo, Av. José Ignacio de la Roza 1516, Rivadavia, San Juan 5400, Argentina
- National Council of Scientific and Technical Research (CONICET), Godoy Cruz 2290, Ciudad Autónoma de Buenos Aires C1425FQB, Argentina
| | - William H. Thiel
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52246, USA
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Leusmann S, Ménová P, Shanin E, Titz A, Rademacher C. Glycomimetics for the inhibition and modulation of lectins. Chem Soc Rev 2023; 52:3663-3740. [PMID: 37232696 PMCID: PMC10243309 DOI: 10.1039/d2cs00954d] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Indexed: 05/27/2023]
Abstract
Carbohydrates are essential mediators of many processes in health and disease. They regulate self-/non-self- discrimination, are key elements of cellular communication, cancer, infection and inflammation, and determine protein folding, function and life-times. Moreover, they are integral to the cellular envelope for microorganisms and participate in biofilm formation. These diverse functions of carbohydrates are mediated by carbohydrate-binding proteins, lectins, and the more the knowledge about the biology of these proteins is advancing, the more interfering with carbohydrate recognition becomes a viable option for the development of novel therapeutics. In this respect, small molecules mimicking this recognition process become more and more available either as tools for fostering our basic understanding of glycobiology or as therapeutics. In this review, we outline the general design principles of glycomimetic inhibitors (Section 2). This section is then followed by highlighting three approaches to interfere with lectin function, i.e. with carbohydrate-derived glycomimetics (Section 3.1), novel glycomimetic scaffolds (Section 3.2) and allosteric modulators (Section 3.3). We summarize recent advances in design and application of glycomimetics for various classes of lectins of mammalian, viral and bacterial origin. Besides highlighting design principles in general, we showcase defined cases in which glycomimetics have been advanced to clinical trials or marketed. Additionally, emerging applications of glycomimetics for targeted protein degradation and targeted delivery purposes are reviewed in Section 4.
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Affiliation(s)
- Steffen Leusmann
- Chemical Biology of Carbohydrates (CBCH), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany.
- Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany
| | - Petra Ménová
- University of Chemistry and Technology, Prague, Technická 5, 16628 Prague 6, Czech Republic
| | - Elena Shanin
- Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
- Department of Microbiology, Immunobiology and Genetics, Max F. Perutz Laboratories, University of Vienna, Biocenter 5, 1030 Vienna, Austria
| | - Alexander Titz
- Chemical Biology of Carbohydrates (CBCH), Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, 66123 Saarbrücken, Germany.
- Department of Chemistry, Saarland University, 66123 Saarbrücken, Germany
- Deutsches Zentrum für Infektionsforschung (DZIF), Standort Hannover-Braunschweig, Germany
| | - Christoph Rademacher
- Department of Pharmaceutical Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria.
- Department of Microbiology, Immunobiology and Genetics, Max F. Perutz Laboratories, University of Vienna, Biocenter 5, 1030 Vienna, Austria
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7
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Truong LB, Medina-Cruz D, Mostafavi E. Current state of RNA delivery using lipid nanoparticles to extrahepatic tissues: A review towards clinical translation. Int J Biol Macromol 2023:125185. [PMID: 37276899 DOI: 10.1016/j.ijbiomac.2023.125185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/07/2023]
Abstract
Genetic medicine, including ribonucleic acid (RNA) therapy, has delivered numerous progresses to the treatment of diseases thanks to the development of lipid nanoparticles (LNPs) as a delivery vehicle. However, RNA therapeutics are still limited by the lack of safe, precise, and efficient delivery outside of the liver. Thus, to fully realize the potential of genetic medicine, strategies to arm LNPs with extrahepatic targeting capabilities are urgently needed. This review explores the current state of next-generation LNPs that can bring RNA biomolecules to their targeted organ. The main approaches commonly used are described, including the modulation of internal lipid chemistries, the use of conjugated targeting moieties, and the designs of clinical administration. This work will demonstrate the advances in each approach and the remaining challenges in the field, focusing on clinical translation.
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Affiliation(s)
- Linh B Truong
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA
| | - David Medina-Cruz
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA
| | - Ebrahim Mostafavi
- Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA.
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8
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Yamazaki K, Kubara K, Suzuki Y, Hihara T, Kurotaki D, Tamura T, Ito M, Tsukahara K. Multivalent mannose-conjugated siRNA causes robust gene silencing in pancreatic macrophages in vivo. Eur J Pharm Biopharm 2023; 183:61-73. [PMID: 36603692 DOI: 10.1016/j.ejpb.2022.12.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/22/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023]
Abstract
Nucleic acid therapeutics have been utilized for gene regulation, and their recent advancement has led to approval of novel drugs for liver-related disorders. However, systemic extrahepatic delivery remains challenging. Here, we report newly designed mannose-conjugated oligonucleotides for delivering oligonucleotides to macrophages by leveraging the mannose receptor, C-type 1 (MRC1, CD206), which is abundantly expressed in macrophages. We investigated the relationship between cellular uptake and multivalency (mono to tetra) of mannose ligands or linker length and selected a trivalent-mannose ligand. Trivalent-mannose (Man3)-conjugated siRNA induced concentration-dependent gene silencing in both human CD206-overexpressing cells and human macrophages in vitro. After subcutaneous injection into mice, we observed a high distribution of Man3-conjugated oligonucleotides in the liver and pancreata as well as cellular uptake into Kupffer cells and pancreatic macrophages. A single subcutaneous injection of Man3-conjugated siRNA (10 mg/kg) targeting β2-microglobulin (B2M) silenced B2m mRNA expression by ∼50% and decreased its protein levels in mouse pancreatic macrophages compared to those in saline-treated mice. Of note, multiple subcutaneous injections decreased B2m gene expression and B2M protein levels by ∼80% and ∼85%, respectively. These results show that mannose-conjugation with oligonucleotides is expected to help deliver oligonucleotides to macrophages and regulate gene expression in vivo, particularly in the pancreas.
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Affiliation(s)
- Kazuto Yamazaki
- Tsukuba Research Laboratories, Eisai Co., Ltd., 5-1-3, Tokodai, Tsukuba, Ibaraki 300-2635, Japan.
| | - Kenji Kubara
- Tsukuba Research Laboratories, Eisai Co., Ltd., 5-1-3, Tokodai, Tsukuba, Ibaraki 300-2635, Japan
| | - Yuta Suzuki
- Tsukuba Research Laboratories, Eisai Co., Ltd., 5-1-3, Tokodai, Tsukuba, Ibaraki 300-2635, Japan
| | - Taro Hihara
- Tsukuba Research Laboratories, Eisai Co., Ltd., 5-1-3, Tokodai, Tsukuba, Ibaraki 300-2635, Japan
| | - Daisuke Kurotaki
- Department of Immunology, Yokohama City University Graduate School of Medicine, 3-9, Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Tomohiko Tamura
- Department of Immunology, Yokohama City University Graduate School of Medicine, 3-9, Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan
| | - Masashi Ito
- Tsukuba Research Laboratories, Eisai Co., Ltd., 5-1-3, Tokodai, Tsukuba, Ibaraki 300-2635, Japan
| | - Kappei Tsukahara
- Tsukuba Research Laboratories, Eisai Co., Ltd., 5-1-3, Tokodai, Tsukuba, Ibaraki 300-2635, Japan
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9
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Sharif NA. PAF-induced inflammatory and immuno-allergic ophthalmic diseases and their mitigation with PAF receptor antagonists: Cell and nuclear effects. Biofactors 2022; 48:1226-1249. [PMID: 35594054 PMCID: PMC10084252 DOI: 10.1002/biof.1848] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/17/2022] [Accepted: 04/26/2022] [Indexed: 02/06/2023]
Abstract
Ocular allergies are becoming more prevalent as more airborne pollutants, irritants and microbes pervade our environment. Inflammatory and allergic mediators released by dendritic and mast cells within the conjunctiva cause allergic conjunctivitis (AC), a prevalent ocular surface disorder that affects >40% of the world's human population on a seasonal or perennial basis. Even though histamine is a major culprit, platelet-activating factor (PAF) also contributes to AC, acting either directly or synergistically with histamine and other mediators. PAF receptor-meditated inflammatory reactions, via cell-membrane-bound and nuclear-membrane-bound and nuclear PAF receptors, are also implicated in the etiology of other eye diseases such as uveitis, diabetic retinopathy, corneal and choroidal neovascularization, and age-related macular degeneration which cause serious visual impairment and can lead to blindness. This review highlights the various deleterious elements implicated in the pathological aspects of ocular allergic reactions and inflammation and provides concepts and treatment options to mitigate these eye disorders with a special focus on PAF and PAF receptor antagonists.
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Affiliation(s)
- Najam A Sharif
- Singapore Eye Research Institute (SERI), Singapore, Singapore
- Department of Pharmacology and Neuroscience, University of North Texas Health Sciences Center, Fort Worth, Texas, USA
- Department of Pharmacy Sciences, Creighton University, Omaha, Nebraska, USA
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Texas Southern University, Houston, Texas, USA
- Department of Surgery & Cancer, Imperial College of Science and Technology, London, UK
- Duke-National University of Singapore Medical School, SingHealth, Singapore, Singapore
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10
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Uehara K, Harumoto T, Makino A, Koda Y, Iwano J, Suzuki Y, Tanigawa M, Iwai H, Asano K, Kurihara K, Hamaguchi A, Kodaira H, Atsumi T, Yamada Y, Tomizuka K. Targeted delivery to macrophages and dendritic cells by chemically modified mannose ligand-conjugated siRNA. Nucleic Acids Res 2022; 50:4840-4859. [PMID: 35524566 PMCID: PMC9122583 DOI: 10.1093/nar/gkac308] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 04/08/2022] [Accepted: 04/14/2022] [Indexed: 12/19/2022] Open
Abstract
Extrahepatic delivery of small interfering RNAs (siRNAs) may have applications in the development of novel therapeutic approaches. However, reports on such approaches are limited, and the scarcity of reports concerning the systemically targeted delivery of siRNAs with effective gene silencing activity presents a challenge. We herein report for the first time the targeted delivery of CD206-targetable chemically modified mannose–siRNA (CMM–siRNA) conjugates to macrophages and dendritic cells (DCs). CMM–siRNA exhibited a strong binding ability to CD206 and selectively delivered contents to CD206-expressing macrophages and DCs. Furthermore, the conjugates demonstrated strong gene silencing ability with long-lasting effects and protein downregulation in CD206-expressing cells in vivo. These findings could broaden the use of siRNA technology, provide additional therapeutic opportunities, and establish a basis for further innovative approaches for the targeted delivery of siRNAs to not only macrophages and DCs but also other cell types.
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Affiliation(s)
- Keiji Uehara
- Research Unit, R&D Division, Kyowa Kirin Co., Ltd., 3-6-6, Otemachi Financial City Grand Cube, 1-9-2 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Toshimasa Harumoto
- Research Unit, R&D Division, Kyowa Kirin Co., Ltd., 3-6-6, Otemachi Financial City Grand Cube, 1-9-2 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Asana Makino
- Research Unit, R&D Division, Kyowa Kirin Co., Ltd., 3-6-6, Otemachi Financial City Grand Cube, 1-9-2 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Yasuo Koda
- Research Unit, R&D Division, Kyowa Kirin Co., Ltd., 3-6-6, Otemachi Financial City Grand Cube, 1-9-2 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Junko Iwano
- Translational Research Unit, R&D Division, Kyowa Kirin Co., Ltd., 1188 Shimotogari, Nagaizumi-cho, Sunto-gun, Shizuoka 411-8731, Japan
| | - Yasuhiro Suzuki
- Research Unit, R&D Division, Kyowa Kirin Co., Ltd., 3-6-6, Otemachi Financial City Grand Cube, 1-9-2 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Mari Tanigawa
- Research Unit, R&D Division, Kyowa Kirin Co., Ltd., 3-6-6, Otemachi Financial City Grand Cube, 1-9-2 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Hiroto Iwai
- Research Unit, R&D Division, Kyowa Kirin Co., Ltd., 3-6-6, Otemachi Financial City Grand Cube, 1-9-2 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Kana Asano
- Research Unit, R&D Division, Kyowa Kirin Co., Ltd., 3-6-6, Otemachi Financial City Grand Cube, 1-9-2 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Kana Kurihara
- Research Unit, R&D Division, Kyowa Kirin Co., Ltd., 3-6-6, Otemachi Financial City Grand Cube, 1-9-2 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Akinori Hamaguchi
- Research Unit, R&D Division, Kyowa Kirin Co., Ltd., 3-6-6, Otemachi Financial City Grand Cube, 1-9-2 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Hiroshi Kodaira
- Translational Research Unit, R&D Division, Kyowa Kirin Co., Ltd., 1188 Shimotogari, Nagaizumi-cho, Sunto-gun, Shizuoka 411-8731, Japan
| | - Toshiyuki Atsumi
- Research Unit, R&D Division, Kyowa Kirin Co., Ltd., 3-6-6, Otemachi Financial City Grand Cube, 1-9-2 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Yoji Yamada
- Research Unit, R&D Division, Kyowa Kirin Co., Ltd., 3-6-6, Otemachi Financial City Grand Cube, 1-9-2 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
| | - Kazuma Tomizuka
- Research Unit, R&D Division, Kyowa Kirin Co., Ltd., 3-6-6, Otemachi Financial City Grand Cube, 1-9-2 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
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