1
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Hall J, Zhang Z, Bhattacharya S, Wang D, Alcantara M, Liang Y, Swiderski P, Forman S, Kwak L, Vaidehi N, Kortylewski M. Oligo-PROTAC strategy for cell-selective and targeted degradation of activated STAT3. Mol Ther Nucleic Acids 2024; 35:102137. [PMID: 38384444 PMCID: PMC10879796 DOI: 10.1016/j.omtn.2024.102137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 01/31/2024] [Indexed: 02/23/2024]
Abstract
Decoy oligodeoxynucleotides (ODNs) allow targeting undruggable transcription factors, such as STAT3, but their limited potency and lack of delivery methods hampered translation. To overcome these challenges, we conjugated a STAT3-specific decoy to thalidomide, a ligand to cereblon in E3 ubiquitin ligase complex, to generate a proteolysis-targeting chimera (STAT3DPROTAC). STAT3DPROTAC downregulated STAT3 in target cells, but not STAT1 or STAT5. Computational modeling of the STAT3DPROTAC ternary complex predicted two surface lysines, K601 and K626, in STAT3 as potential ubiquitination sites. Accordingly, K601/K626 point mutations in STAT3, as well as proteasome inhibition or cereblon deletion, alleviated STAT3DPROTAC effect. Next, we conjugated STAT3DPROTAC to a CpG oligonucleotide targeting Toll-like receptor 9 (TLR9) to generate myeloid/B cell-selective C-STAT3DPROTAC. Naked C-STAT3DPROTAC was spontaneously internalized by TLR9+ myeloid cells, B cells, and human and mouse lymphoma cells but not by T cells. C-STAT3DPROTAC effectively decreased STAT3 protein levels and also STAT3-regulated target genes critical for lymphoma cell proliferation and/or survival (BCL2L1, CCND2, and MYC). Finally, local C-STAT3DPROTAC administration to human Ly3 lymphoma-bearing mice triggered tumor regression, while control C-STAT3D and C-SCR treatments had limited effects. Our results underscore the feasibility of using a PROTAC strategy for cell-selective, decoy oligonucleotide-based STAT3 targeting of and potentially other tumorigenic transcription factors for cancer therapy.
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Affiliation(s)
- Jeremy Hall
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Zhuoran Zhang
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Supriyo Bhattacharya
- Department of Computational and Quantitative Medicine, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Dongfang Wang
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Marice Alcantara
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Yong Liang
- DNA/RNA Synthesis Core Facility, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Piotr Swiderski
- DNA/RNA Synthesis Core Facility, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Stephen Forman
- Department of Hematology & Hematopoietic Cell Transplantation, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Larry Kwak
- Department of Hematology & Hematopoietic Cell Transplantation, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Nagarajan Vaidehi
- Department of Computational and Quantitative Medicine, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Marcin Kortylewski
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
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2
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Zhang B, Zhao D, Chen F, Frankhouser D, Wang H, Pathak KV, Dong L, Torres A, Garcia-Mansfield K, Zhang Y, Hoang DH, Chen MH, Tao S, Cho H, Liang Y, Perrotti D, Branciamore S, Rockne R, Wu X, Ghoda L, Li L, Jin J, Chen J, Yu J, Caligiuri MA, Kuo YH, Boldin M, Su R, Swiderski P, Kortylewski M, Pirrotte P, Nguyen LXT, Marcucci G. Acquired miR-142 deficit in leukemic stem cells suffices to drive chronic myeloid leukemia into blast crisis. Nat Commun 2023; 14:5325. [PMID: 37658085 PMCID: PMC10474062 DOI: 10.1038/s41467-023-41167-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 08/23/2023] [Indexed: 09/03/2023] Open
Abstract
The mechanisms underlying the transformation of chronic myeloid leukemia (CML) from chronic phase (CP) to blast crisis (BC) are not fully elucidated. Here, we show lower levels of miR-142 in CD34+CD38- blasts from BC CML patients than in those from CP CML patients, suggesting that miR-142 deficit is implicated in BC evolution. Thus, we create miR-142 knockout CML (i.e., miR-142-/-BCR-ABL) mice, which develop BC and die sooner than miR-142 wt CML (i.e., miR-142+/+BCR-ABL) mice, which instead remain in CP CML. Leukemic stem cells (LSCs) from miR-142-/-BCR-ABL mice recapitulate the BC phenotype in congenic recipients, supporting LSC transformation by miR-142 deficit. State-transition and mutual information analyses of "bulk" and single cell RNA-seq data, metabolomic profiling and functional metabolic assays identify enhanced fatty acid β-oxidation, oxidative phosphorylation and mitochondrial fusion in LSCs as key steps in miR-142-driven BC evolution. A synthetic CpG-miR-142 mimic oligodeoxynucleotide rescues the BC phenotype in miR-142-/-BCR-ABL mice and patient-derived xenografts.
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Affiliation(s)
- Bin Zhang
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA.
| | - Dandan Zhao
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Fang Chen
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - David Frankhouser
- Department of Computational and Quantitative Medicine, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Huafeng Wang
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
- Department of Hematology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, PR China
| | - Khyatiben V Pathak
- Cancer & Cell Biology Division, Translational Genomics Research Institute, Phoenix, AZ, USA
- Integrated Mass Spectrometry Shared Resource, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Lei Dong
- Department of Systems Biology, Beckman Research Institute of City of Hope, Monrovia, CA, USA
| | - Anakaren Torres
- Cancer & Cell Biology Division, Translational Genomics Research Institute, Phoenix, AZ, USA
- Integrated Mass Spectrometry Shared Resource, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Krystine Garcia-Mansfield
- Cancer & Cell Biology Division, Translational Genomics Research Institute, Phoenix, AZ, USA
- Integrated Mass Spectrometry Shared Resource, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Yi Zhang
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
- Department of Hematology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, PR China
| | - Dinh Hoa Hoang
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Min-Hsuan Chen
- City of Hope National Medical Center, Integrative Genomics Core, Department of Computational and Quantitative Medicine, Beckman Research Institute, Duarte, CA, USA
| | - Shu Tao
- City of Hope National Medical Center, Integrative Genomics Core, Department of Computational and Quantitative Medicine, Beckman Research Institute, Duarte, CA, USA
| | - Hyejin Cho
- City of Hope National Medical Center, Integrative Genomics Core, Department of Computational and Quantitative Medicine, Beckman Research Institute, Duarte, CA, USA
| | - Yong Liang
- DNA/RNA Peptide Shared Resources, Beckman Research Institute, Duarte, CA, USA
| | - Danilo Perrotti
- Department of Medicine and Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine Baltimore, Baltimore, MD, USA
- Department of Immunology and Inflammation, Centre of Hematology, Imperial College of London, London, UK
| | - Sergio Branciamore
- Department of Computational and Quantitative Medicine, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Russell Rockne
- Department of Computational and Quantitative Medicine, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Xiwei Wu
- City of Hope National Medical Center, Integrative Genomics Core, Department of Computational and Quantitative Medicine, Beckman Research Institute, Duarte, CA, USA
| | - Lucy Ghoda
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Ling Li
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Jie Jin
- Department of Hematology, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, PR China
| | - Jianjun Chen
- Department of Systems Biology, Beckman Research Institute of City of Hope, Monrovia, CA, USA
| | - Jianhua Yu
- Department of Hematology & Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA, USA
| | - Michael A Caligiuri
- Department of Hematology & Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA, USA
| | - Ya-Huei Kuo
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA
| | - Mark Boldin
- Department of Systems Biology, Beckman Research Institute of City of Hope, Monrovia, CA, USA
| | - Rui Su
- Department of Systems Biology, Beckman Research Institute of City of Hope, Monrovia, CA, USA
| | - Piotr Swiderski
- DNA/RNA Peptide Shared Resources, Beckman Research Institute, Duarte, CA, USA
| | - Marcin Kortylewski
- Department of Immuno-Oncology, Beckman Research Institute, Duarte, CA, USA
| | - Patrick Pirrotte
- Cancer & Cell Biology Division, Translational Genomics Research Institute, Phoenix, AZ, USA
- Integrated Mass Spectrometry Shared Resource, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Le Xuan Truong Nguyen
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA.
- Cancer & Cell Biology Division, Translational Genomics Research Institute, Phoenix, AZ, USA.
| | - Guido Marcucci
- Department of Hematological Malignancies Translational Science, Gehr Family Center for Leukemia Research, City of Hope Medical Center and Beckman Research Institute, Duarte, CA, USA.
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Zhang C, Huang R, Ren L, Song J, Kortylewski M, Swiderski P, Forman S, Yu H. Local CpG- Stat3 siRNA treatment improves antitumor effects of immune checkpoint inhibitors. bioRxiv 2023:2023.08.17.553571. [PMID: 37645787 PMCID: PMC10462083 DOI: 10.1101/2023.08.17.553571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Immune checkpoint blockade (ICB) therapy has significantly benefited patients with several types of solid tumors and some lymphomas. However, many of the treated patients do not have durable clinical response. It has been demonstrated that rescuing exhausted CD8 + T cells is required for ICB-mediated antitumor effects. We recently developed an immunostimulatory strategy based on silencing STAT3 while stimulating immune responses by CpG, ligand for Toll-like receptor 9 (TLR9). The CpG-small interfering RNA (siRNA) conjugates efficiently enter immune cells, silencing STAT3 and activating innate immunity to enhance T-cell mediated antitumor immune responses. In the present study, we demonstrate that blocking STAT3 through locally delivered CpG- Stat3 siRNA enhances the efficacies of the systemic PD-1 and CTLA4 blockade against mouse A20 B cell lymphoma. In addition, locally delivered CpG- Stat3 siRNA combined with systemic administration of PD-1 antibody significantly augmented both local and systemic antitumor effects against mouse B16 melanoma tumors, with enhanced tumor-associated T cell activation. Overall, our studies in both B cell lymphoma and melanoma mouse models demonstrate the potential of combinatory immunotherapy with CpG- Stat3 siRNA and checkpoint inhibitors as a therapeutic strategy for B cell lymphoma and melanoma.
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Hall J, Zhang Z, Wang D, Bhattacharya S, Alcantara M, Liang Y, Swiderski P, Forman S, Kwak L, Vaidehi N, Kortylewski M. Oligo-PROTAC strategy for cell-selective and targeted degradation of activated STAT3. bioRxiv 2023:2023.08.01.551552. [PMID: 37577590 PMCID: PMC10418257 DOI: 10.1101/2023.08.01.551552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Decoy-oligodeoxynucleotides (D-ODNs) can target undruggable transcription factors, such as STAT3. However, challenges in D-ODN delivery and potency hampered their translation. To overcome these limitations, we conjugated STAT3-specific D-ODN to thalidomide (Tha), a known ligand to cereblon (CRBN, a component of E3 ubiquitin ligase) to generate a proteolysis-targeting chimera (STAT3D PROTAC ). STAT3D PROTAC downregulated STAT3, but not STAT1 or STAT5, in target cells. Computational modeling of the STAT3D PROTAC ternary complex predicted two surface lysines on STAT3, K601 and K626 as potential ubiquitination sites for the PROTAC bound E3 ligase. Accordingly, K601/K626 point mutations in STAT3, as well as proteasome inhibitors, and CRBN deletion alleviated STAT3D PROTAC effect. Next, we conjugated STAT3D PROTAC to a CpG ligand targeting Toll-like receptor 9 (TLR9) to generate myeloid/B-cell-selective C-STAT3D PROTAC conjugate. Naked C-STAT3D PROTAC was spontaneously internalized by TLR9 + myeloid cells, B cells as well as human Ly18 and mouse A20 lymphoma cells, but not by T cells. C-STAT3D PROTAC decreased STAT3 levels to 50% at 250 nM and over 85% at 2 µM dosing in myeloid cells. We also observed significantly improved downregulation of STAT3 target genes involved in lymphoma cell proliferation and/or survival ( BCL2L1, CCND2, MYC ). Finally, we assessed the antitumor efficacy of C-STAT3D PROTAC compared to C-STAT3D or scrambled control (C-SCR) against human lymphoma xenotransplants. Local C-STAT3D PROTAC administration triggered lymphoma regression while control treatments had limited effects. Our results underscore feasibility of using PROTAC strategy for cell-selective, decoy oligonucleotide-based targeting of STAT3 and potentially other tumorigenic transcription factors for cancer therapy.
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5
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Andrikakou P, Reebye V, Vasconcelos D, Yoon S, Voutila J, George AJT, Swiderski P, Habib R, Catley M, Blakey D, Habib NA, Rossi JJ, Huang KW. Enhancing SIRT1 Gene Expression Using Small Activating RNAs: A Novel Approach for Reversing Metabolic Syndrome. Nucleic Acid Ther 2022; 32:486-496. [PMID: 35895511 DOI: 10.1089/nat.2021.0115] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Metabolic syndrome (MetS) is a pathological condition characterized by abdominal obesity, insulin resistance, hypertension, and hyperlipidemia. Sirtuin 1 (SIRT1), a highly conserved histone deacetylase, is characterized as a key metabolic regulator and protector against aging-associated pathologies, including MetS. In this study, we investigate the therapeutic potential of activating SIRT1 using small activating RNAs (saRNA), thereby reducing inflammatory-like responses and re-establishing normal lipid metabolism. SIRT1 saRNA significantly increased SIRT1 messenger RNA (mRNA) and protein levels in both lipopolysaccharide-stimulated and nonstimulated macrophages. SIRT1 saRNA significantly decreased inflammatory-like responses, by reducing mRNA levels of key inflammatory cytokines, such as Tumor Necrosis Factor alpha, Interleukin 1 beta (IL-1β), Interleukin 6 (IL-6), and chemokines Monocyte Chemoattractant Protein-1 and keratinocyte chemoattractant. SIRT1 overexpression also significantly reduced phosphorylation of nuclear factor-κB and c-Jun N-terminal kinase, both key signaling molecules for the inflammatory pathway. To investigate the therapeutic effect of SIRT1 upregulation, we treated a high-fat diet model with SIRT1 saRNA conjugated to a transferrin receptor aptamer for delivery to the liver and cellular internalization. Animals in the SIRT1 saRNA treatment arm demonstrated significantly decreased weight gain with a significant reduction in white adipose tissue, triglycerides, fasting glucose levels, and intracellular lipid accumulation. These suggest treatment-induced changes to lipid and glucose metabolism in the animals. The results of this study demonstrate that targeted activation of SIRT1 by saRNAs is a potential strategy to reverse MetS.
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Affiliation(s)
- Pinelopi Andrikakou
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Vikash Reebye
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom
| | - Daniel Vasconcelos
- MiNA Therapeutics Limited, London, United Kingdom.,Center for Drug Discovery and Innovative Medicines (MedInUP), University of Porto, Porto, Portugal
| | - Sorah Yoon
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, California, USA
| | - Jon Voutila
- MiNA Therapeutics Limited, London, United Kingdom
| | | | - Piotr Swiderski
- DNA/RNA Synthesis Core Facility, Department of Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, California, USA
| | - Robert Habib
- MiNA Therapeutics Limited, London, United Kingdom
| | | | - David Blakey
- MiNA Therapeutics Limited, London, United Kingdom
| | - Nagy A Habib
- Department of Surgery and Cancer, Imperial College London, London, United Kingdom.,MiNA Therapeutics Limited, London, United Kingdom
| | - John J Rossi
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, California, USA
| | - Kai-Wen Huang
- Department of Surgery, Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan.,Graduate Institute of Clinical Medicine, National Taiwan University, Taipei, Taiwan
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6
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Adamus T, Hung CY, Yu C, Kang E, Hammad M, Flores L, Nechaev S, Zhang Q, Gonzaga JM, Muthaiyah K, Swiderski P, Aboody KS, Kortylewski M. Glioma-targeted delivery of exosome-encapsulated antisense oligonucleotides using neural stem cells. Mol Ther Nucleic Acids 2022; 27:611-620. [PMID: 35036069 PMCID: PMC8752899 DOI: 10.1016/j.omtn.2021.12.029] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 12/17/2021] [Indexed: 12/20/2022]
Abstract
Tropism of neural stem cells (NSCs) to hypoxic tumor areas provides an opportunity for the drug delivery. Here, we demonstrate that NSCs effectively transport antisense oligonucleotides (ASOs) targeting oncogenic and tolerogenic signal transducer and activator of transcription 3 (STAT3) protein into glioma microenvironment. To enable spontaneous, scavenger receptor-mediated endocytosis by NSCs, we used previously described CpG-STAT3ASO conjugates. Following uptake and endosomal escape, CpG-STAT3ASO colocalized with CD63+ vesicles and later with CD63+CD81+ exosomes. Over 3 days, NSCs secreted exosomes loaded up to 80% with CpG-STAT3ASO. Compared to native NSC exosomes, the CpG-STAT3ASO-loaded exosomes potently stimulated immune activity of human dendritic cells or mouse macrophages, inducing nuclear factor κB (NF-κB) signaling and interleukin-12 (IL-12) production. Using orthotopic GL261 tumors, we confirmed that NSC-mediated delivery improved oligonucleotide transfer from a distant injection site into the glioma microenvironment versus naked oligonucleotides. Correspondingly, the NSC-delivered CpG-STAT3ASO enhanced activation of glioma-associated microglia. Finally, we demonstrated that NSC-mediated CpG-STAT3ASO delivery resulted in enhanced antitumor effects against GL261 glioma in mice. Peritumoral injections of 5 × 105 NSCs loaded ex vivo with CpG-STAT3ASO inhibited subcutaneous tumor growth more effectively than the equivalent amount of oligonucleotide alone. Based on these results, we anticipate that NSCs and NSC-derived exosomes will provide a clinically relevant strategy to improve delivery and safety of oligonucleotide therapeutics for glioma treatment.
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Affiliation(s)
- Tomasz Adamus
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
| | - Chia-Yang Hung
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
| | - Chunsong Yu
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
| | - Elaine Kang
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
| | - Mohamed Hammad
- Department of Developmental and Stem Cell Biology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
| | - Linda Flores
- Department of Developmental and Stem Cell Biology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
| | - Sergey Nechaev
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
| | - Qifang Zhang
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
| | - Joanna Marie Gonzaga
- Department of Developmental and Stem Cell Biology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
| | - Kokilah Muthaiyah
- DNA/RNA Synthesis Laboratory, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
| | - Piotr Swiderski
- DNA/RNA Synthesis Laboratory, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
| | - Karen S Aboody
- Department of Developmental and Stem Cell Biology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
| | - Marcin Kortylewski
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, CA 91010, USA
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7
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Kujawski M, Li L, Li H, Yazaki PJ, Swiderski P, Shively JE. T-cell surface generation of dual bivalent, bispecific T-cell engaging, RNA duplex cross-linked antibodies (dbBiTERs) for re-directed tumor cell lysis. Biotechnol J 2022; 17:e2100389. [PMID: 34773368 PMCID: PMC9177045 DOI: 10.1002/biot.202100389] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 11/06/2021] [Accepted: 11/09/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND Genetic engineered Bispecific T-cell engagers (BiTEs) generate potent cytotoxic effects. METHODS Alternately, click chemistry engineered, dual specific bivalent Bispecific T-cell engaging antibodies (dbBiTEs) on T-cell surfaces can be generated from parent monoclonal antibodies. RESULTS We show the formation of dbBiTEs on the surface of T-cells along with the introduction of complementary 2'-OMe RNA 32-mer oligonucleotides allowing duplex formation between antibodies, designated as dbBiTERs. dbBiTERs generated in solution from anti-CEA and anti-CD3 OKT3 antibodies retained specific binding to CEA positive versus CEA negative cancer cells and to CD3 positive T-cells comparable to dbBiTEs. When T-cells were precoated with dbBiTEs or dbBiTERs and mixed with CEA positive versus CEA negative cancer cells, similar dose dependent and specific cytotoxicity were observed in redirected cell lysis assays. On-cell generated dbBiTERs exerted potent cytotoxic responses against CEA positive targets and were localized at the cell surface by immuno-gold EM. In addition, we demonstrate that target and T-cells, each coated separately with complementary 2'OMe-RNA-linked antibodies can be cross-linked by RNA duplex formation in vitro to generate redirected cell lysis. CONCLUSION The facile generation of dbBiTERs with specific cytolytic activity from intact antibodies and their generation on-cell offers a new avenue for antigen specific T-cell therapy.
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Affiliation(s)
- Maciej Kujawski
- Department of Immunology and Theranostics, City of Hope, Duarte, California, USA
| | - Lin Li
- Department of Immunology and Theranostics, City of Hope, Duarte, California, USA
| | - Harry Li
- Department of Immunology and Theranostics, City of Hope, Duarte, California, USA
| | - Paul J. Yazaki
- Department of Immunology and Theranostics, City of Hope, Duarte, California, USA
| | - Piotr Swiderski
- Shared Resources-DNA/RNA/Peptide, City of Hope, Duarte, California, USA
| | - John E. Shively
- Department of Immunology and Theranostics, City of Hope, Duarte, California, USA
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8
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Zhang L, Nguyen LXT, Chen YC, Wu D, Cook GJ, Hoang DH, Brewer CJ, He X, Dong H, Li S, Li M, Zhao D, Qi J, Hua WK, Cai Q, Carnahan E, Chen W, Wu X, Swiderski P, Rockne RC, Kortylewski M, Li L, Zhang B, Marcucci G, Kuo YH. Targeting miR-126 in inv(16) acute myeloid leukemia inhibits leukemia development and leukemia stem cell maintenance. Nat Commun 2021; 12:6154. [PMID: 34686664 PMCID: PMC8536759 DOI: 10.1038/s41467-021-26420-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 10/05/2021] [Indexed: 12/21/2022] Open
Abstract
Acute myeloid leukemia (AML) harboring inv(16)(p13q22) expresses high levels of miR-126. Here we show that the CBFB-MYH11 (CM) fusion gene upregulates miR-126 expression through aberrant miR-126 transcription and perturbed miR-126 biogenesis via the HDAC8/RAN-XPO5-RCC1 axis. Aberrant miR-126 upregulation promotes survival of leukemia-initiating progenitors and is critical for initiating and maintaining CM-driven AML. We show that miR-126 enhances MYC activity through the SPRED1/PLK2-ERK-MYC axis. Notably, genetic deletion of miR-126 significantly reduces AML rate and extends survival in CM knock-in mice. Therapeutic depletion of miR-126 with an anti-miR-126 (miRisten) inhibits AML cell survival, reduces leukemia burden and leukemia stem cell (LSC) activity in inv(16) AML murine and xenograft models. The combination of miRisten with chemotherapy further enhances the anti-leukemia and anti-LSC activity. Overall, this study provides molecular insights for the mechanism and impact of miR-126 dysregulation in leukemogenesis and highlights the potential of miR-126 depletion as a therapeutic approach for inv(16) AML. miR-126 is highly expressed in inv(16) Acute myeloid leukemia (AML) but its role is unclear. Here, the authors show that the aberrant expression of miR-126 in inv(16) AML is directly due to the CBFB-MYH11 fusion gene and that it can promote AML development and leukemia stem cell maintenance, highlighting miR-126 as a therapeutic target for inv(16) AML patients
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Affiliation(s)
- Lianjun Zhang
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Le Xuan Truong Nguyen
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Ying-Chieh Chen
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Dijiong Wu
- Department of Hematology, First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310006, China
| | - Guerry J Cook
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Dinh Hoa Hoang
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Casey J Brewer
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Xin He
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Haojie Dong
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Shu Li
- Department of Hematology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310009, China
| | - Man Li
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Dandan Zhao
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Jing Qi
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Wei-Kai Hua
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Qi Cai
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Emily Carnahan
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Wei Chen
- Integrated Genomics Core, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Xiwei Wu
- Integrated Genomics Core, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Piotr Swiderski
- Department of Molecular Medicine, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Russell C Rockne
- Department of Computational and Quantitative Medicine, Division of Mathematical Oncology, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Marcin Kortylewski
- Department of Immuno-oncology, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Ling Li
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Bin Zhang
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Guido Marcucci
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA
| | - Ya-Huei Kuo
- Gehr Family Center for Leukemia Research, Department of Hematological Malignancies Translational Science, Hematologic Malignancies and Stem Cell Transplantation Institute, Beckman Research Institute, City of Hope Medical Center, Duarte, CA, 91010, USA.
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9
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zhang Z, Zhao X, Moreira D, Su YL, Swiderski P, Forman S, Kwak L, Kortylewski M. Abstract 5356: Targeted in vivo delivery of NF-κB decoy oligodeoxynucleotide augments efficacy of radiation therapy against B-cell lymphomas. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-5356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Despite recent advances in the treatment of non-Hodgkin B-cell lymphoma (BCL), significant numbers of patients relapse or remain refractory to current therapies. Treatment resistance in BCL is associated with survival signaling via NF-κB transcription factor. While NF-κB is an attractive molecular target in BCL and many other human cancers, as a transcription factor it remains undruggable. Here, we describe a B-cell-selective NF-κB inhibitor consisting of a NF-κB-specific decoy oligodeoxynucleotide (dODN) conjugated to a type B CpG ODN sequence targeting Toll-like receptor-9 (TLR9)-expressing B-cell lymphoma cells. Bc-NFκBdODN showed efficient uptake by human diffuse large B-cell lymphoma (DLBCL) and mantle cell lymphoma (MCL), such as U2932, OCI-Ly3 and Jeko1, respectively. In addition, we confirmed that Bc-NFκBdODN inhibited nuclear translocation and DNA-binding activity of NF-κB together with the expression of CCND2 and MYC target genes. In vitro Bc-NFκBdODN enhanced direct and ionizing radiation-induced cytotoxicity in lymphoma cells. In xenotransplanted models of human U2932 and Ly3 lymphomas, local injections of Bc-NFκBdODN reduced NF-κB activity in whole tumors and effectively arrested lymphoma progression when combined with a single, local 3Gy or 10Gy dose of radiation. In immune-competent mice, intratumoral treatment with Bc-NFκBdODN abrogated growth of directly treated as well as distant A20 lymphomas and triggered CD8+ T cell-mediated anti-tumor immune responses. Bc-NFκBdODN but not control Bc-scrambled oligonucleotides downregulated PD-1 expression on CD8+ and CD4+ T cells, while reducing Treg percentage in tumor draining lymph nodes (TDLN). Bc-NFκBdODN treatment also downregulated PD-L1 on tumor-associated myeloid cells and reduced percentage of tumor-infiltrating M-MDSCs. Our results underscore clinical relevance of NF-κB-specific decoy strategy, which can restore efficacy of standard radiation therapy to benefit patients with resistant or relapsed BCL.
Citation Format: Zhuoran zhang, Xingli Zhao, Dayson Moreira, Yu-Lin Su, Piotr Swiderski, Stephen Forman, Larry Kwak, Marcin Kortylewski. Targeted in vivo delivery of NF-κB decoy oligodeoxynucleotide augments efficacy of radiation therapy against B-cell lymphomas [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 5356.
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Affiliation(s)
- Zhuoran zhang
- 1City of Hope Beckman Research Institute, Duarte, CA
| | - Xingli Zhao
- 2Chinese Academy of Medical Science and Peking Union Medical College, China
| | | | - Yu-Lin Su
- 1City of Hope Beckman Research Institute, Duarte, CA
| | | | | | - Larry Kwak
- 1City of Hope Beckman Research Institute, Duarte, CA
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10
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Yoon S, Huang KW, Andrikakou P, Vasconcelos D, Swiderski P, Reebye V, Sodergren M, Habib N, Rossi JJ. Targeted Delivery of C/EBPα-saRNA by RNA Aptamers Shows Anti-tumor Effects in a Mouse Model of Advanced PDAC. Mol Ther Nucleic Acids 2019; 18:142-154. [PMID: 31546149 PMCID: PMC6796740 DOI: 10.1016/j.omtn.2019.08.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 07/20/2019] [Accepted: 08/14/2019] [Indexed: 02/06/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most aggressive malignancies; it preferentially metastasizes to the liver and is the main cause of death from this disease. In previous studies, small activating RNA against CCAAT/enhancer-binding protein-α (C/EBPα-saRNA) demonstrated efficacy of PDAC in a local subcutaneous tumor model. In this study, we focused on the efficacy of C/EBPα-saRNA in advanced stage PDAC. For targeted delivery, we selected a new anti-transferrin receptor aptamer (TR14), which demonstrated a high binding affinity to target proteins. The TR14 aptamer was internalized with clathrin-mediated endocytosis, distributed in early endosome, late endosome, and lysosome subcellularly. To investigate its anti-tumor effects to advanced PDAC, we conjugated C/EBPα-saRNA to TR14. Treatment of pancreatic cancer cells with the conjugates upregulated expression of C/EBPα and its downstream target p21, and inhibited cell proliferation. For in vivo assays, we established an advanced PDAC mouse model by engrafting luciferase reporter-PANC-1 cells directly into the livers of non-obese diabetic/severe combined immunodeficiency (NOD/SCID) mice. After treatment of aptamer-C/EBPα conjugates, we observed significant reduction of tumor growth in this advanced PDAC mouse model. Combinational treatment of the conjugates with gemcitabine also demonstrated enhanced anti-tumor effects in advanced PDAC. This suggests that aptamer-C/EBPα conjugates could be used as an adjuvant, along with other conventional anti-cancer drugs in advanced PDAC. In conclusion, targeted delivery of C/EBPα-saRNAs by aptamers might have potential therapeutic effects in advanced PDAC.
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Affiliation(s)
- Sorah Yoon
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Kai-Wen Huang
- Department of Surgery and Hepatitis Research Center, National Taiwan University Hospital, Taipei 10051, Taiwan; Graduate Institute of Clinical Medicine, National Taiwan University, Taipei 10051, Taiwan
| | - Pinelopi Andrikakou
- Department of Surgery and Cancer, Imperial College London, London W12 0NN, UK
| | | | - Piotr Swiderski
- DNA/RNA Synthesis Core Facility, Department of Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | | | - Mikael Sodergren
- Department of Surgery and Cancer, Imperial College London, London W12 0NN, UK
| | - Nagy Habib
- Department of Surgery and Cancer, Imperial College London, London W12 0NN, UK
| | - John J Rossi
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA.
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11
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Abstract
Elevated levels of microRNAs in cancer cells are often associated with oncogenic effects and thus provide potential therapeutic targets. However, the lack of efficient delivery methods for synthetic miRNA inhibitors, antagomiR, or anti-miR oligonucleotides hindered clinical translation of such strategies. We recently developed an approach for targeted delivery of synthetic, 2'-O-methyl-modified antagomiR molecules to normal and malignant myeloid cells and B cells by tethering to the single-stranded, phosphorothioate oligodeoxynucleotides (PSO). The PSO-antagomiR are rapidly internalized through scavenger receptor-mediated endocytosis by human monocytes, dendritic cells, B cells, as well as myeloid leukemia and B-cell lymphoma cells, but not by T cells. Following internalization, the unformulated PSO-antagomiR potently reduces levels of target miRNA and modulates expression of downstream protein targets, both in vitro and in vivo. The simple design of PSO-antagomiR conjugates enable adaptation of this strategy for targeting oncogenic miRNAs in nonmalignant and malignant myeloid cells and B cells.
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Affiliation(s)
- Yu-Lin Su
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope, Duarte, CA, USA
| | - Piotr Swiderski
- Department of Molecular Medicine, Beckman Research Institute at City of Hope, Duarte, CA, USA
| | - Guido Marcucci
- Hematologic Malignancies, Beckman Research Institute at City of Hope, Duarte, CA, USA
| | - Marcin Kortylewski
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope, Duarte, CA, USA.
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12
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Nuzzo S, Catuogno S, Capuozzo M, Fiorelli A, Swiderski P, Boccella S, de Nigris F, Esposito CL. Axl-Targeted Delivery of the Oncosuppressor miR-137 in Non-small-Cell Lung Cancer. Mol Ther Nucleic Acids 2019; 17:256-263. [PMID: 31276956 PMCID: PMC6609832 DOI: 10.1016/j.omtn.2019.06.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 06/03/2019] [Accepted: 06/04/2019] [Indexed: 01/12/2023]
Abstract
Non-small-cell lung cancer (NSCLC) accounts for 85%–90% of all cases of lung cancer that is the most deadly type of cancer. Despite advances in chemotherapy and radiotherapy, severe side effects and frequent drug resistance limit the success of the treatments, and the identification of new therapeutic options still represents a crucial challenge. Here, we provide the evidence for the therapeutic potential of an aptamer-microRNA (miR) complex (AmiC) composed by an aptamer (GL21.T), able to bind and antagonize the oncogenic receptor Axl, and the miR-137, downregulated in lung cancer and involved in cell survival and proliferation. We found that, when applied to Axl-expressing NSCLC cancer cells, the complex is effectively internalized, increasing miR cellular levels and downregulating miR targets. Most importantly, the complex combines the inhibitory function of the GL21.T aptamer and miR-137, leading to a negative impact on NSCLC migration and growth. The described AmiC thus represents a promising tool for the development of new therapeutic approaches for NSCLC.
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Affiliation(s)
| | - Silvia Catuogno
- Istituto di Endocrinologia ed Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (CNR), Naples, Italy
| | - Maria Capuozzo
- Istituto di Endocrinologia ed Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (CNR), Naples, Italy
| | - Alfonso Fiorelli
- Thoracic Surgery Unit, University of Campania "Luigi Vanvitelli," Naples, Italy
| | - Piotr Swiderski
- DNA/RNA Synthesis Laboratory, Beckman Research Institute of City the of Hope, Duarte, CA, USA
| | - Serena Boccella
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli," Naples, Italy
| | - Filomena de Nigris
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli," Naples, Italy; Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA, USA
| | - Carla Lucia Esposito
- Istituto di Endocrinologia ed Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (CNR), Naples, Italy.
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13
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Moreira D, Adamus T, Zhao X, Su YL, Zhang Z, White SV, Swiderski P, Lu X, DePinho RA, Pal SK, Kortylewski M. STAT3 Inhibition Combined with CpG Immunostimulation Activates Antitumor Immunity to Eradicate Genetically Distinct Castration-Resistant Prostate Cancers. Clin Cancer Res 2018; 24:5948-5962. [PMID: 30337279 DOI: 10.1158/1078-0432.ccr-18-1277] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 07/09/2018] [Accepted: 07/30/2018] [Indexed: 12/19/2022]
Abstract
PURPOSE Prostate cancers show remarkable resistance to emerging immunotherapies, partly due to tolerogenic STAT3 signaling in tumor-associated myeloid cells. Here, we describe a novel strategy combining STAT3 inhibition with Toll-like Receptor 9 (TLR9) stimulation to unleash immune response against prostate cancers regardless of the genetic background. EXPERIMENTAL DESIGN We developed and validated a conjugate of the STAT3 antisense oligonucleotide (ASO) tethered to immunostimulatory TLR9 agonist (CpG oligonucleotide) to improve targeting of human and mouse prostate cancer and myeloid immune cells, such as myeloid-derived suppressor cells (MDSC). RESULTS CpG-STAT3ASO conjugates showed improved biodistribution and potency of STAT3 knockdown in target cells in vitro and in vivo. Systemic administration of CpG-STAT3ASO (5 mg/kg) eradicated bone-localized, Ras/Myc-driven, and Ptenpc -/- Smad4pc -/- Trp53c -/- prostate tumors in the majority of treated mice. These antitumor effects were primarily immune-mediated and correlated with an increased ratio of CD8+ to regulatory T cells and reduced pSTAT3+/PD-L1+ MDSCs. Both innate and adaptive immunity contributed to systemic antitumor responses as verified by the depletion of Gr1+ myeloid cells and CD8+ and CD4+ T cells, respectively. Importantly, only the bifunctional CpG-STAT3ASO, but not control CpG oligonucleotides, STAT3ASO alone, or the coinjection of both oligonucleotides, succeeded in recruiting neutrophils and CD8+ T cells into tumors. Thus, the concurrence of TLR9 activation with STAT3 inhibition in the same cellular compartment is indispensable for overcoming tumor immune tolerance and effective antitumor immunity against prostate cancer. CONCLUSIONS The bifunctional, immunostimulatory, and tolerance-breaking design of CpG-STAT3ASO offers a blueprint for the development of effective and safer oligonucleotide strategies for treatment of immunologically "cold" human cancers.
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Affiliation(s)
- Dayson Moreira
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California
| | - Tomasz Adamus
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California
| | - Xingli Zhao
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California
| | - Yu-Lin Su
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California
| | - Zhuoran Zhang
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California
| | - Seok Voon White
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California
| | - Piotr Swiderski
- DNA/RNA Synthesis Core Laboratory, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California
| | - Xin Lu
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana
| | - Ronald A DePinho
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Sumanta K Pal
- Medical Oncology and Experimental Therapeutics, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California.
| | - Marcin Kortylewski
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California. .,Center for Gene Therapy, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California
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14
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Wang Y, Hoinka J, Liang Y, Adamus T, Swiderski P, Przytycka TM. AptaBlocks: Designing RNA complexes and accelerating RNA-based drug delivery systems. Nucleic Acids Res 2018; 46:8133-8142. [PMID: 29986050 PMCID: PMC6144873 DOI: 10.1093/nar/gky577] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 06/12/2018] [Accepted: 07/04/2018] [Indexed: 12/15/2022] Open
Abstract
RNA-based therapeutics, i.e. the utilization of synthetic RNA molecules to alter cellular functions, have the potential to address targets which are currently out of scope for traditional drug design pipelines. This potential however hinges on the ability to selectively deliver and internalize therapeutic RNAs into cells of interest. Cell internalizing RNA aptamers selected against surface receptors and discriminatively expressed on target cells hold particular promise as suitable candidates for such delivery agents. Specifically, these aptamers can be combined with a therapeutic cargo and facilitate internalization of the cargo into the cell of interest. A recently proposed method to obtain such aptamer-cargo constructs employs a double-stranded "sticky bridge" where the complementary strands constituting the bridge are conjugated with the aptamer and the cargo respectively. The design of appropriate sticky bridge sequences however has proven highly challenging given the structural and functional constraints imposed on them during synthesis and administration. These include, but are not limited to, guaranteed formation and stability of the complex, non-interference with the aptamer or the cargo, as well as the prevention of spurious aggregation of the molecules during incubation. In order to address these issues, we have developed AptaBlocks - a computational method to design RNA complexes that hybridize via sticky bridges. The effectiveness of our approach has been verified computationally, and experimentally in the context of drug delivery to pancreatic cancer cells. Importantly, AptaBlocks is a general method for the assembly of nucleic acid systems that, in addition to designing of RNA-based drug delivery systems, can be used in other applications of RNA nanotechnology. AptaBlocks is available at https://github.com/wyjhxq/AptaBlocks.
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Affiliation(s)
- Yijie Wang
- National Center of Biotechnology Information, National Library of Medicine, NIH, Bethesda MD 20894, USA
| | - Jan Hoinka
- National Center of Biotechnology Information, National Library of Medicine, NIH, Bethesda MD 20894, USA
| | - Yong Liang
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Tomasz Adamus
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Piotr Swiderski
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Teresa M Przytycka
- National Center of Biotechnology Information, National Library of Medicine, NIH, Bethesda MD 20894, USA
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15
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Zhang Z, Moreira D, Su YL, Swiderski P, Zeng D, Kortylewski M. Inhibition of Survival Signaling in B-Cell Lymphoma Using TLR9-Targeted Delivery of NF-Kb Decoy Oligodeoxynucleotides in Vitro and in Vivo. Exp Hematol 2018. [DOI: 10.1016/j.exphem.2018.06.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Su YL, Zhang Z, Swiderski P, Zeng D, Marcucci G, Boldin M, Kortylewski M. Targeted Delivery of miR-146a Mimic Oligonucleotides as a Potential Therapeutic Approach to Modulate NF-kB Signaling in Myeloid Leukemia and Myeloproliferative Diseases. Exp Hematol 2018. [DOI: 10.1016/j.exphem.2018.06.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Zhang B, Nguyen LXT, Li L, Zhao D, Kumar B, Wu H, Lin A, Pellicano F, Hopcroft L, Su YL, Copland M, Holyoake TL, Kuo CJ, Bhatia R, Snyder DS, Ali H, Stein AS, Brewer C, Wang H, McDonald T, Swiderski P, Troadec E, Chen CC, Dorrance A, Pullarkat V, Yuan YC, Perrotti D, Carlesso N, Forman SJ, Kortylewski M, Kuo YH, Marcucci G. Bone marrow niche trafficking of miR-126 controls the self-renewal of leukemia stem cells in chronic myelogenous leukemia. Nat Med 2018; 24:450-462. [PMID: 29505034 PMCID: PMC5965294 DOI: 10.1038/nm.4499] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 01/22/2018] [Indexed: 12/16/2022]
Abstract
Leukemia stem cells (LSCs) in individuals with chronic myelogenous leukemia (CML) (hereafter referred to as CML LSCs) are responsible for initiating and maintaining clonal hematopoiesis. These cells persist in the bone marrow (BM) despite effective inhibition of BCR-ABL kinase activity by tyrosine kinase inhibitors (TKIs). Here we show that although the microRNA (miRNA) miR-126 supported the quiescence, self-renewal and engraftment capacity of CML LSCs, miR-126 levels were lower in CML LSCs than in long-term hematopoietic stem cells (LT-HSCs) from healthy individuals. Downregulation of miR-126 levels in CML LSCs was due to phosphorylation of Sprouty-related EVH1-domain-containing 1 (SPRED1) by BCR-ABL, which led to inhibition of the RAN-exportin-5-RCC1 complex that mediates miRNA maturation. Endothelial cells (ECs) in the BM supply miR-126 to CML LSCs to support quiescence and leukemia growth, as shown using mouse models of CML in which Mir126a (encoding miR-126) was conditionally knocked out in ECs and/or LSCs. Inhibition of BCR-ABL by TKI treatment caused an undesired increase in endogenous miR-126 levels, which enhanced LSC quiescence and persistence. Mir126a knockout in LSCs and/or ECs, or treatment with a miR-126 inhibitor that targets miR-126 expression in both LSCs and ECs, enhanced the in vivo anti-leukemic effects of TKI treatment and strongly diminished LSC leukemia-initiating capacity, providing a new strategy for the elimination of LSCs in individuals with CML.
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Affiliation(s)
- Bin Zhang
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Le Xuan Truong Nguyen
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA.,Department of Medical Biotechnology, Biotechnology Center of Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Ling Li
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Dandan Zhao
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Bijender Kumar
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Herman Wu
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Allen Lin
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Francesca Pellicano
- Paul O' Gorman Leukemia Research Centre, College of Medical, Veterinary and Life Sciences, Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Lisa Hopcroft
- Paul O' Gorman Leukemia Research Centre, College of Medical, Veterinary and Life Sciences, Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Yu-Lin Su
- Department of Immuno-oncology, City of Hope Medical Center, Duarte, California, USA
| | - Mhairi Copland
- Paul O' Gorman Leukemia Research Centre, College of Medical, Veterinary and Life Sciences, Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Tessa L Holyoake
- Paul O' Gorman Leukemia Research Centre, College of Medical, Veterinary and Life Sciences, Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Calvin J Kuo
- Stanford University School of Medicine, Stanford, California, USA
| | - Ravi Bhatia
- University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - David S Snyder
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Haris Ali
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Anthony S Stein
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Casey Brewer
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Huafeng Wang
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA.,Department of Hematology, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Tinisha McDonald
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Piotr Swiderski
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Estelle Troadec
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Ching-Cheng Chen
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Adrienne Dorrance
- Division of Hematology, Department of Internal Medicine, Ohio State University, Columbus, Ohio, USA
| | - Vinod Pullarkat
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Yate-Ching Yuan
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Danilo Perrotti
- Department of Medicine, Biochemistry and Molecular Biology and the Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine Baltimore, Baltimore, Maryland, USA.,Deparment of Hematology, Hammersmith Hospital, Imperial College London, London, UK
| | - Nadia Carlesso
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Stephen J Forman
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Marcin Kortylewski
- Department of Immuno-oncology, City of Hope Medical Center, Duarte, California, USA
| | - Ya-Huei Kuo
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
| | - Guido Marcucci
- Gehr Family Center for Leukemia Research, Hematology Malignancies and Stem Cell Transplantation Institute, City of Hope Medical Center, Duarte, California, USA
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Zhao X, Zhang Z, Moreira D, Su YL, Won H, Adamus T, Dong Z, Liang Y, Yin HH, Swiderski P, Pillai RK, Kwak L, Forman S, Kortylewski M. B Cell Lymphoma Immunotherapy Using TLR9-Targeted Oligonucleotide STAT3 Inhibitors. Mol Ther 2018; 26:695-707. [PMID: 29433938 PMCID: PMC5910676 DOI: 10.1016/j.ymthe.2018.01.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 01/08/2018] [Accepted: 01/11/2018] [Indexed: 01/22/2023] Open
Abstract
Growing evidence links the aggressiveness of non-Hodgkin’s lymphoma, especially the activated B cell-like type diffuse large B cell lymphomas (ABC-DLBCLs) to Toll-like receptor 9 (TLR9)/MyD88 and STAT3 transcription factor signaling. Here, we describe a dual-function molecule consisting of a clinically relevant TLR9 agonist (CpG7909) and a STAT3 inhibitor in the form of a high-affinity decoy oligodeoxynucleotide (dODN). The CpG-STAT3dODN blocked STAT3 DNA binding and activity, thus reducing expression of downstream target genes, such as MYC and BCL2L1, in human and mouse lymphoma cells. We further demonstrated that injections (i.v.) of CpG-STAT3dODN inhibited growth of human OCI-Ly3 lymphoma in immunodeficient mice. Moreover, systemic CpG-STAT3dODN administration induced complete regression of the syngeneic A20 lymphoma, resulting in long-term survival of immunocompetent mice. Both TLR9 stimulation and concurrent STAT3 inhibition were critical for immune-mediated therapeutic effects, since neither CpG7909 alone nor CpG7909 co-injected with unconjugated STAT3dODN extended mouse survival. The CpG-STAT3dODN induced expression of genes critical to antigen-processing/presentation and Th1 cell activation while suppressing survival signaling. These effects resulted in the generation of lymphoma cell-specific CD8/CD4-dependent T cell immunity protecting mice from tumor rechallenge. Our results suggest that CpG-STAT3dODN as a systemic/local monotherapy or in combination with PD1 blockade can provide an opportunity for treating patients with B cell NHL.
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Affiliation(s)
- Xingli Zhao
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA; State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin 300020, China
| | - Zhuoran Zhang
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Dayson Moreira
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Yu-Lin Su
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Haejung Won
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Tomasz Adamus
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Zhenyuan Dong
- Department of Hematology and Hematopoietic Cell Transplantation, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA; Toni Stephenson Lymphoma Center, Department of Hematology and Hematopoietic Cell Transplantation, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Yong Liang
- DNA/RNA Synthesis Core Facility, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Hongwei H Yin
- Molecular Pathology, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Piotr Swiderski
- DNA/RNA Synthesis Core Facility, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Raju K Pillai
- Molecular Pathology, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Larry Kwak
- Department of Hematology and Hematopoietic Cell Transplantation, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA; Toni Stephenson Lymphoma Center, Department of Hematology and Hematopoietic Cell Transplantation, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Stephen Forman
- Department of Hematology and Hematopoietic Cell Transplantation, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA; Toni Stephenson Lymphoma Center, Department of Hematology and Hematopoietic Cell Transplantation, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Marcin Kortylewski
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA.
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19
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Yoon S, Huang KW, Reebye V, Spalding D, Przytycka TM, Wang Y, Swiderski P, Li L, Armstrong B, Reccia I, Zacharoulis D, Dimas K, Kusano T, Shively J, Habib N, Rossi JJ. Aptamer-Drug Conjugates of Active Metabolites of Nucleoside Analogs and Cytotoxic Agents Inhibit Pancreatic Tumor Cell Growth. Mol Ther Nucleic Acids 2016; 6:80-88. [PMID: 28325302 PMCID: PMC5363417 DOI: 10.1016/j.omtn.2016.11.008] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 10/21/2016] [Accepted: 11/02/2016] [Indexed: 01/05/2023]
Abstract
Aptamer-drug conjugates (ApDCs) have the potential to improve the therapeutic index of traditional chemotherapeutic agents due to their ability to deliver cytotoxic drugs specifically to cancer cells while sparing normal cells. This study reports on the conjugation of cytotoxic drugs to an aptamer previously described by our group, the pancreatic cancer RNA aptamer P19. To this end, P19 was incorporated with gemcitabine and 5-fluorouracil (5-FU), or conjugated to monomethyl auristatin E (MMAE) and derivative of maytansine 1 (DM1). The ApDCs P19-dFdCMP and P19-5FdUMP were shown to induce the phosphorylation of histone H2AX on Ser139 (γ-H2AX) and significantly inhibited cell proliferation by 51%–53% in PANC-1 and by 54%–34% in the gemcitabine-resistant pancreatic cancer cell line AsPC-1 (p ≤ 0.0001). P19-MMAE and P19-DM1 caused mitotic G2/M phase arrest and inhibited cell proliferation by up to 56% in a dose-dependent manner when compared to the control group (p ≤ 0.001). In addition, the cytotoxicity of P19-MMAE and P19-DM1 in normal cells and the control human breast cancer cell line MCF7 was minimal. These results suggest that this approach may be useful in decreasing cytotoxic side effects in non-tumoral tissue.
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Affiliation(s)
- Sorah Yoon
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Kai-Wen Huang
- Department of Surgery and Hepatitis Research Center, National Taiwan University Hospital, College of Medicine, Taipei 10051, Taiwan; Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei 10051, Taiwan
| | - Vikash Reebye
- Department of Surgery and Cancer, Imperial College London, London SW7 2AZ, UK
| | - Duncan Spalding
- Department of Surgery and Cancer, Imperial College London, London SW7 2AZ, UK
| | - Teresa M Przytycka
- National Center of Biotechnology Information, National Library of Medicine, NIH, Bethesda, MD 20894, USA
| | - Yijie Wang
- National Center of Biotechnology Information, National Library of Medicine, NIH, Bethesda, MD 20894, USA
| | - Piotr Swiderski
- Drug Discovery and Structural Biology Core-DNA/RNA Synthesis Laboratory, Department of Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Lin Li
- Department of Molecular Immunology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Brian Armstrong
- Light Microscopy Digital Imaging Core, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Isabella Reccia
- Department of Surgery and Cancer, Imperial College London, London SW7 2AZ, UK
| | - Dimitris Zacharoulis
- Department of Surgery and Pharmacology, University Hospital of Larissa, Larissa 41110, Greece
| | - Konstantinos Dimas
- Department of Surgery and Pharmacology, University Hospital of Larissa, Larissa 41110, Greece
| | - Tomokazu Kusano
- Department of Surgery and Cancer, Imperial College London, London SW7 2AZ, UK
| | - John Shively
- Department of Molecular Immunology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Nagy Habib
- Department of Surgery and Cancer, Imperial College London, London SW7 2AZ, UK
| | - John J Rossi
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA; Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute of City of Hope, City of Hope, 1500 East Duarte Rd., Duarte, CA 91010, USA.
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20
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Lundqvist A, van Hoef V, Zhang X, Wennerberg E, Lorent J, Witt K, Sanz LM, Liang S, Murray S, Larsson O, Kiessling R, Mao Y, Sidhom JW, Bessell CA, Havel J, Schneck J, Chan TA, Sachsenmeier E, Woods D, Berglund A, Ramakrishnan R, Sodre A, Weber J, Zappasodi R, Li Y, Qi J, Wong P, Sirard C, Postow M, Newman W, Koon H, Velcheti V, Callahan MK, Wolchok JD, Merghoub T, Lum LG, Choi M, Thakur A, Deol A, Dyson G, Shields A, Haymaker C, Uemura M, Murthy R, James M, Wang D, Brevard J, Monaghan C, Swann S, Geib J, Cornfeld M, Chunduru S, Agrawal S, Yee C, Wargo J, Patel SP, Amaria R, Tawbi H, Glitza I, Woodman S, Hwu WJ, Davies MA, Hwu P, Overwijk WW, Bernatchez C, Diab A, Massarelli E, Segal NH, Ribrag V, Melero I, Gangadhar TC, Urba W, Schadendorf D, Ferris RL, Houot R, Morschhauser F, Logan T, Luke JJ, Sharfman W, Barlesi F, Ott PA, Mansi L, Kummar S, Salles G, Carpio C, Meier R, Krishnan S, McDonald D, Maurer M, Gu X, Neely J, Suryawanshi S, Levy R, Khushalani N, Wu J, Zhang J, Basher F, Rubinstein M, Bucsek M, Qiao G, Hembrough T, Spacek J, Vocka M, Zavadova E, Skalova H, Dundr P, Petruzelka L, Francis N, Tilman RT, Hartmann A, MacDonald C, Netikova I, Ballesteros-Merino C, Stump J, Tufman A, Berger F, Neuberger M, Hatz R, Lindner M, Sanborn RE, Handy J, Hylander B, Fox B, Bifulco C, Huber RM, Winter H, Reu S, Sun C, Xiao W, Tian Z, Arora K, Desai N, Repasky E, Kulkarni A, Rajurkar M, Rivera M, Deshpande V, Ting D, Tsai K, Nosrati A, Goldinger S, Hamid O, Algazi A, Chatterjee S, Tumeh P, Hwang J, Liu J, Chen L, Dummer R, Rosenblum M, Daud A, Tsao TS, Ashworth-Sharpe J, Johnson D, Daenthanasanmak A, Bhaumik S, Bieniarz C, Couto J, Farrell M, Ghaffari M, Habensus I, Hubbard A, Jones T, Kelly B, Kosmeder J, Chakraborty P, Lee C, Marner E, Meridew J, Polaske N, Racolta A, Uribe D, Zhang H, Zhang J, Zhang W, Zhu Y, Toth K, Morrison L, Pestic-Dragovich L, Tang L, Tsujikawa T, Borkar RN, Azimi V, Kumar S, Thibault G, Mori M, El Rassi E, Meek M, Clayburgh DR, Kulesz-Martin MF, Flint PW, Coussens LM, Villabona L, Masucci GV, Geiss G, Birditt B, Mei Q, Huang A, Garrett-Mayer E, White AM, Eagan MA, Ignacio E, Elliott N, Dunaway D, Dennis L, Warren S, Beechem J, Dunaway D, Jung J, Nishimura M, Merritt C, Sprague I, Webster P, Liang Y, Warren S, Beechem J, Wenthe J, Enblad G, Karlsson H, Essand M, Paulos C, Savoldo B, Dotti G, Höglund M, Brenner MK, Hagberg H, Loskog A, Bernett MJ, Moore GL, Hedvat M, Bonzon C, Beeson C, Chu S, Rashid R, Avery KN, Muchhal U, Desjarlais J, Hedvat M, Bernett MJ, Moore GL, Bonzon C, Rashid R, Yu X, Chu S, Avery KN, Muchhal U, Desjarlais J, Kraman M, Kmiecik K, Allen N, Faroudi M, Zimarino C, Wydro M, Mehrotra S, Doody J, Srinivasa SP, Govindappa N, Reddy P, Dubey A, Periyasamy S, Adekandi M, Dey C, Joy M, van Loo PF, Zhao F, Veninga H, Shamsili S, Throsby M, Dolstra H, Bakker L, Alva A, Gschwendt J, Loriot Y, Bellmunt J, Feng D, Evans K, Poehlein C, Powles T, Antonarakis ES, Drake CG, Wu H, Poehlein C, De Bono J, Bannerji R, Byrd J, Gregory G, Xiao C, Opat S, Shortt J, Yee AJ, Raje N, Thompson S, Balakumaran A, Kumar S, Rini BI, Choueiri TK, Mariani M, Holtzhausen A, Albiges L, Haanen JB, Atkins MB, Larkin J, Schmidinger M, Magazzù D, di Pietro A, Motzer RJ, Borch TH, Andersen R, Hanks BA, Kongsted P, Pedersen M, Nielsen M, Met Ö, Donia M, Svane IM, Boudadi K, Wang H, Vasselli J, Baughman JE, Scharping N, Wigginton J, Abdallah R, Ross A, Drake CG, Antonarakis ES, Canter RJ, Park J, Wang Z, Grossenbacher S, Luna JI, Menk AV, Withers S, Culp W, Chen M, Monjazeb A, Kent MS, Murphy WJ, Chandran S, Somerville R, Wunderlich J, Danforth D, Moreci R, Yang J, Sherry R, Klebanoff C, Goff S, Paria B, Sabesan A, Srivastava A, Rosenberg SA, Kammula U, Curti B, Whetstone R, Richards J, Faries M, Andtbacka RHI, Grose M, Shafren D, Diaz LA, Le DT, Yoshino T, André T, Bendell J, Dadey R, Koshiji M, Zhang Y, Kang SP, Lam B, Jäger D, Bauer TM, Wang JS, Lee JK, Manji GA, Kudchadkar R, Watkins S, Kauh JS, Tang S, Laing N, Falchook G, Garon EB, Halmos B, Rina H, Leighl N, Lee SS, Walsh W, Ferris R, Dragnev K, Piperdi B, Rodriguez LPA, Shinwari N, Wei Z, Gustafson MP, Maas ML, Deeds M, Armstrong A, Bornschlegl S, Delgoffe GM, Peterson T, Steinmetz S, Gastineau DA, Parney IF, Dietz AB, Herzog T, Backes FJ, Copeland L, Del Pilar Estevez Diz M, Hare TW, Peled J, Huh W, Kim BG, Moore KM, Oaknin A, Small W, Tewari KS, Monk BJ, Kamat AM, Bellmunt J, Choueiri TK, Devlin S, Nam K, De Santis M, Dreicer R, Hahn NM, Perini R, Siefker-Radtke A, Sonpavde G, de Wit R, Witjes JA, Keefe S, Staffas A, Bajorin D, Kline J, Armand P, Kuruvilla J, Moskowitz C, Hamadani M, Ribrag V, Zinzani PL, Chlosta S, Thompson S, Lumish M, Balakumaran A, Bartlett N, Kyi C, Sabado R, Saenger Y, William L, Donovan MJ, Sacris E, Mandeli J, Salazar AM, Rodriguez KP, Friedlander P, Bhardwaj N, Powderly J, Brody J, Nemunaitis J, Emens L, Luke JJ, Patnaik A, McCaffery I, Miller R, Ahr K, Laport G, Coveler AL, Smith DC, Grilley-Olson JE, Gajewski TF, Goel S, Gardai SJ, Law CL, Means G, Manley T, Perales M, Curti B, Marrone KA, Rosner G, Anagnostou V, Riemer J, Wakefield J, Zanhow C, Baylin S, Gitlitz B, Brahmer J, Giralt S, McDermott DF, Signoretti S, Li W, Schloss C, Michot JM, Armand P, Ding W, Ribrag V, Christian B, Balakumaran A, Taur Y, Marinello P, Chlosta S, Zhang Y, Shipp M, Zinzani PL, Najjar YG, Lin, Butterfield LH, Tarhini AA, Davar D, Pamer E, Zarour H, Rush E, Sander C, Kirkwood JM, Fu S, Bauer T, Molineaux C, Bennett MK, Orford KW, Papadopoulos KP, van den Brink MRM, Padda SK, Shah SA, Colevas AD, Narayanan S, Fisher GA, Supan D, Wakelee HA, Aoki R, Pegram MD, Villalobos VM, Jenq R, Liu J, Takimoto CH, Chao M, Volkmer JP, Majeti R, Weissman IL, Sikic BI, Page D, Yu W, Conlin A, Annels N, Ruzich J, Lewis S, Acheson A, Kemmer K, Perlewitz K, Moxon NM, Mellinger S, Bifulco C, Martel M, Koguchi Y, Pandha H, Fox B, Urba W, McArthur H, Pedersen M, Westergaard MCW, Borch TH, Nielsen M, Kongsted P, Juhler-Nøttrup T, Donia M, Simpson G, Svane IM, Desai J, Markman B, Sandhu S, Gan H, Friedlander ML, Tran B, Meniawy T, Lundy J, Colyer D, Mostafid H, Ameratunga M, Norris C, Yang J, Li K, Wang L, Luo L, Qin Z, Mu S, Tan X, Song J, Harrington K, Millward M, Katz MHG, Bauer TW, Varadhachary GR, Acquavella N, Merchant N, Petroni G, Slingluff CL, Rahma OE, Rini BI, Melcher A, Powles T, Chen M, Song Y, Puhlmann M, Atkins MB, Sathyanaryanan S, Hirsch HA, Shu J, Deshpande A, Khattri A, Grose M, Reeves J, Zi T, Brisson R, Harvey C, Michaelson J, Law D, Seiwert T, Shah J, Mateos MV, Matsumoto M, Davies B, Blacklock H, Rocafiguera AO, Goldschmidt H, Iida S, Yehuda DB, Ocio E, Rodríguez-Otero P, Jagannath S, Lonial S, Kher U, Au G, Marinello P, San-Miguel J, Shah J, Lonial S, de Oliveira MR, Yimer H, Mateos MV, Rifkin R, Schjesvold F, Ocio E, Karpathy R, Rodríguez-Otero P, San-Miguel J, Ghori R, Marinello P, Jagannath S, Spreafico A, Lee V, Ngan RKC, To KF, Ahn MJ, Shafren D, Ng QS, Hong RL, Lin JC, Swaby RF, Gause C, Saraf S, Chan ATC, Lam E, Tannir NM, Meric-Bernstam F, Ricca J, Vaishampayan U, Orford KW, Molineaux C, Gross M, MacKinnon A, Whiting S, Voss M, Yu EY, Wu H, Schloss C, Merghoub T, Albertini MR, Ranheim EA, Hank JA, Zuleger C, McFarland T, Collins J, Clements E, Weber S, Weigel T, Neuman H, Wolchok JD, Hartig G, Mahvi D, Henry M, Gan J, Yang R, Carmichael L, Kim K, Gillies SD, Sondel PM, Subbiah V, Zamarin D, Murthy R, Noffsinger L, Hendricks K, Bosch M, Lee JM, Lee MH, Garon EB, Goldman JW, Baratelli FE, Schaue D, Batista L, Wang G, Rosen F, Yanagawa J, Walser TC, Lin YQ, Adams S, Marincola FM, Tumeh PC, Abtin F, Suh R, Marliot F, Reckamp K, Wallace WD, Zeng G, Elashoff DA, Sharma S, Dubinett SM, Bhardwaj N, Friedlander P, Pavlick AC, Ernstoff MS, Vasaturo A, Gastman B, Hanks B, Albertini MR, Luke JJ, Keler T, Davis T, Vitale LA, Sharon E, Danaher P, Morishima C, Carpentier S, Cheever M, Fling S, Heery CR, Kim JW, Lamping E, Marte J, McMahon S, Cordes L, Fakhrejahani F, Madan R, Poggionovo C, Tsang K, Jochems C, Salazar R, Zhang M, Helwig C, Schlom J, Gulley JL, Li R, Amrhein J, Cohen Z, Frayssinet V, Champagne M, Kamat A, Aznar MA, Labiano S, Diaz-Lagares A, Esteller M, Sandoval J, Melero I, Barbee SD, Bellovin DI, Fieschi J, Timmer JC, Wondyfraw N, Johnson S, Park J, Chen A, Mkrtichyan M, Razai AS, Jones KS, Hata CY, Gonzalez D, Van den Eynde M, Deveraux Q, Eckelman BP, Borges L, Bhardwaj R, Puri RK, Suzuki A, Leland P, Joshi BH, Bartkowiak T, Jaiswal A, Pagès F, Ager C, Ai M, Budhani P, Chin R, Hong D, Curran M, Hastings WD, Pinzon-Ortiz M, Murakami M, Dobson JR, Galon J, Quinn D, Wagner JP, Rong X, Shaw P, Dammassa E, Guan W, Dranoff G, Cao A, Fulton RB, Leonardo S, Hermitte F, Fraser K, Kangas TO, Ottoson N, Bose N, Huhn RD, Graff J, Lowe J, Gorden K, Uhlik M, Vitale LA, Smith SG, O’Neill T, Widger J, Crocker A, He LZ, Weidlick J, Sundarapandiyan K, Ramakrishna V, Storey J, Thomas LJ, Goldstein J, Nguyen K, Marsh HC, Keler T, Grailer J, Gilden J, Stecha P, Garvin D, Hartnett J, Fan F, Cong M, Cheng ZJJ, Ravindranathan S, Hinner MJ, Aiba RSB, Schlosser C, Jaquin T, Allersdorfer A, Berger S, Wiedenmann A, Matschiner G, Schüler J, Moebius U, Koppolu B, Rothe C, Shane OA, Horton B, Spranger S, Gajewski TF, Moreira D, Adamus T, Zhao X, Swiderski P, Pal S, Zaharoff D, Kortylewski M, Kosmides A, Necochea K, Schneck J, Mahoney KM, Shukla SA, Patsoukis N, Chaudhri A, Pham H, Hua P, Schvartsman G, Bu X, Zhu B, Hacohen N, Wu CJ, Fritsch E, Boussiotis VA, Freeman GJ, Moran AE, Polesso F, Lukaesko L, Bassett R, Weinberg A, Rådestad E, Egevad L, Mattsson J, Sundberg B, Henningsohn L, Levitsky V, Uhlin M, Rafelson W, Reagan JL, McQuade JL, Fast L, Sasikumar P, Sudarshan N, Ramachandra R, Gowda N, Samiulla D, Chandrasekhar T, Adurthi S, Mani J, Nair R, Haydu LE, Dhudashia A, Gowda N, Ramachandra M, Sankin A, Gartrell B, Cumberbatch K, Huang H, Stern J, Schoenberg M, Zang X, Davies MA, Swanson R, Kornacker M, Evans L, Rickel E, Wolfson M, Valsesia-Wittmann S, Shekarian T, Simard F, Nailo R, Dutour A, Tawbi H, Jallas AC, Caux C, Marabelle A, Glitza I, Kline D, Chen X, Fosco D, Kline J, Overacre A, Chikina M, Brunazzi E, Shayan G, Horne W, Kolls J, Ferris RL, Delgoffe GM, Bruno TC, Workman C, Vignali D, Adusumilli PS, Ansa-Addo EA, Li Z, Gerry A, Sanderson JP, Howe K, Docta R, Gao Q, Bagg EAL, Tribble N, Maroto M, Betts G, Bath N, Melchiori L, Lowther DE, Ramachandran I, Kari G, Basu S, Binder-Scholl G, Chagin K, Pandite L, Holdich T, Amado R, Zhang H, Glod J, Bernstein D, Jakobsen B, Mackall C, Wong R, Silk JD, Adams K, Hamilton G, Bennett AD, Brett S, Jing J, Quattrini A, Saini M, Wiedermann G, Gerry A, Jakobsen B, Binder-Scholl G, Brewer J, Duong M, Lu A, Chang P, Mahendravada A, Shinners N, Slawin K, Spencer DM, Foster AE, Bayle JH, Bergamaschi C, Ng SSM, Nagy B, Jensen S, Hu X, Alicea C, Fox B, Felber B, Pavlakis G, Chacon J, Yamamoto T, Garrabrant T, Cortina L, Powell DJ, Donia M, Kjeldsen JW, Andersen R, Westergaard MCW, Bianchi V, Legut M, Attaf M, Dolton G, Szomolay B, Ott S, Lyngaa R, Hadrup SR, Sewell AK, Svane IM, Fan A, Kumai T, Celis E, Frank I, Stramer A, Blaskovich MA, Wardell S, Fardis M, Bender J, Lotze MT, Goff SL, Zacharakis N, Assadipour Y, Prickett TD, Gartner JJ, Somerville R, Black M, Xu H, Chinnasamy H, Kriley I, Lu L, Wunderlich J, Robbins PF, Rosenberg S, Feldman SA, Trebska-McGowan K, Kriley I, Malekzadeh P, Payabyab E, Sherry R, Rosenberg S, Goff SL, Gokuldass A, Blaskovich MA, Kopits C, Rabinovich B, Lotze MT, Green DS, Kamenyeva O, Zoon KC, Annunziata CM, Hammill J, Helsen C, Aarts C, Bramson J, Harada Y, Yonemitsu Y, Helsen C, Hammill J, Mwawasi K, Denisova G, Bramson J, Giri R, Jin B, Campbell T, Draper LM, Stevanovic S, Yu Z, Weissbrich B, Restifo NP, Trimble CL, Rosenberg S, Hinrichs CS, Tsang K, Fantini M, Hodge JW, Fujii R, Fernando I, Jochems C, Heery C, Gulley J, Soon-Shiong P, Schlom J, Jing W, Gershan J, Blitzer G, Weber J, McOlash L, Johnson BD, Kiany S, Gangxiong H, Kleinerman ES, Klichinsky M, Ruella M, Shestova O, Kenderian S, Kim M, Scholler J, June CH, Gill S, Moogk D, Zhong S, Yu Z, Liadi I, Rittase W, Fang V, Dougherty J, Perez-Garcia A, Osman I, Zhu C, Varadarajan N, Restifo NP, Frey A, Krogsgaard M, Landi D, Fousek K, Mukherjee M, Shree A, Joseph S, Bielamowicz K, Byrd T, Ahmed N, Hegde M, Lee S, Byrd D, Thompson J, Bhatia S, Tykodi S, Delismon J, Chu L, Abdul-Alim S, Ohanian A, DeVito AM, Riddell S, Margolin K, Magalhaes I, Mattsson J, Uhlin M, Nemoto S, Villarroel PP, Nakagawa R, Mule JJ, Mailloux AW, Mata M, Nguyen P, Gerken C, DeRenzo C, Spencer DM, Gottschalk S, Mathieu M, Pelletier S, Stagg J, Turcotte S, Minutolo N, Sharma P, Tsourkas A, Powell DJ, Mockel-Tenbrinck N, Mauer D, Drechsel K, Barth C, Freese K, Kolrep U, Schult S, Assenmacher M, Kaiser A, Mullinax J, Hall M, Le J, Kodumudi K, Royster E, Richards A, Gonzalez R, Sarnaik A, Pilon-Thomas S, Nielsen M, Krarup-Hansen A, Hovgaard D, Petersen MM, Loya AC, Junker N, Svane IM, Rivas C, Parihar R, Gottschalk S, Rooney CM, Qin H, Nguyen S, Su P, Burk C, Duncan B, Kim BH, Kohler ME, Fry T, Rao AA, Teyssier N, Pfeil J, Sgourakis N, Salama S, Haussler D, Richman SA, Nunez-Cruz S, Gershenson Z, Mourelatos Z, Barrett D, Grupp S, Milone M, Rodriguez-Garcia A, Robinson MK, Adams GP, Powell DJ, Santos J, Havunen R, Siurala M, Cervera-Carrascón V, Parviainen S, Antilla M, Hemminki A, Sethuraman J, Santiago L, Chen JQ, Dai Z, Wardell S, Bender J, Lotze MT, Sha H, Su S, Ding N, Liu B, Stevanovic S, Pasetto A, Helman SR, Gartner JJ, Prickett TD, Robbins PF, Rosenberg SA, Hinrichs CS, Bhatia S, Burgess M, Zhang H, Lee T, Klingemann H, Soon-Shiong P, Nghiem P, Kirkwood JM, Rossi JM, Sherman M, Xue A, Shen YW, Navale L, Rosenberg SA, Kochenderfer JN, Bot A, Veerapathran A, Gokuldass A, Stramer A, Sethuraman J, Blaskovich MA, Wiener D, Frank I, Santiago L, Rabinovich B, Fardis M, Bender J, Lotze MT, Waller EK, Li JM, Petersen C, Blazar BR, Li J, Giver CR, Wang Z, Grossenbacher SK, Sturgill I, Canter RJ, Murphy WJ, Zhang C, Burger MC, Jennewein L, Waldmann A, Mittelbronn M, Tonn T, Steinbach JP, Wels WS, Williams JB, Zha Y, Gajewski TF, Williams LC, Krenciute G, Kalra M, Louis C, Gottschalk S, Xin G, Schauder D, Jiang A, Joshi N, Cui W, Zeng X, Menk AV, Scharping N, Delgoffe GM, Zhao Z, Hamieh M, Eyquem J, Gunset G, Bander N, Sadelain M, Askmyr D, Abolhalaj M, Lundberg K, Greiff L, Lindstedt M, Angell HK, Kim KM, Kim ST, Kim S, Sharpe AD, Ogden J, Davenport A, Hodgson DR, Barrett C, Lee J, Kilgour E, Hanson J, Caspell R, Karulin A, Lehmann P, Ansari T, Schiller A, Sundararaman S, Lehmann P, Hanson J, Roen D, Karulin A, Lehmann P, Ayers M, Levitan D, Arreaza G, Liu F, Mogg R, Bang YJ, O’Neil B, Cristescu R, Friedlander P, Wassman K, Kyi C, Oh W, Bhardwaj N, Bornschlegl S, Gustafson MP, Gastineau DA, Parney IF, Dietz AB, Carvajal-Hausdorf D, Mani N, Velcheti V, Schalper K, Rimm D, Chang S, Levy R, Kurland J, Krishnan S, Ahlers CM, Jure-Kunkel M, Cohen L, Maecker H, Kohrt H, Chen S, Crabill G, Pritchard T, McMiller T, Pardoll D, Pan F, Topalian S, Danaher P, Warren S, Dennis L, White AM, D’Amico L, Geller M, Disis ML, Beechem J, Odunsi K, Fling S, Derakhshandeh R, Webb TJ, Dubois S, Conlon K, Bryant B, Hsu J, Beltran N, Müller J, Waldmann T, Duhen R, Duhen T, Thompson L, Montler R, Weinberg A, Kates M, Early B, Yusko E, Schreiber TH, Bivalacqua TJ, Ayers M, Lunceford J, Nebozhyn M, Murphy E, Loboda A, Kaufman DR, Albright A, Cheng J, Kang SP, Shankaran V, Piha-Paul SA, Yearley J, Seiwert T, Ribas A, McClanahan TK, Cristescu R, Mogg R, Ayers M, Albright A, Murphy E, Yearley J, Sher X, Liu XQ, Nebozhyn M, Lunceford J, Joe A, Cheng J, Plimack E, Ott PA, McClanahan TK, Loboda A, Kaufman DR, Forrest-Hay A, Guyre CA, Narumiya K, Delcommenne M, Hirsch HA, Deshpande A, Reeves J, Shu J, Zi T, Michaelson J, Law D, Trehu E, Sathyanaryanan S, Hodkinson BP, Hutnick NA, Schaffer ME, Gormley M, Hulett T, Jensen S, Ballesteros-Merino C, Dubay C, Afentoulis M, Reddy A, David L, Fox B, Jayant K, Agrawal S, Agrawal R, Jeyakumar G, Kim S, Kim H, Silski C, Suisham S, Heath E, Vaishampayan U, Vandeven N, Viller NN, O’Connor A, Chen H, Bossen B, Sievers E, Uger R, Nghiem P, Johnson L, Kao HF, Hsiao CF, Lai SC, Wang CW, Ko JY, Lou PJ, Lee TJ, Liu TW, Hong RL, Kearney SJ, Black JC, Landis BJ, Koegler S, Hirsch B, Gianani R, Kim J, He MX, Zhang B, Su N, Luo Y, Ma XJ, Park E, Kim DW, Copploa D, Kothari N, doo Chang Y, Kim R, Kim N, Lye M, Wan E, Kim N, Lye M, Wan E, Kim N, Lye M, Wan E, Knaus HA, Berglund S, Hackl H, Karp JE, Gojo I, Luznik L, Hong HS, Koch SD, Scheel B, Gnad-Vogt U, Kallen KJ, Wiegand V, Backert L, Kohlbacher O, Hoerr I, Fotin-Mleczek M, Billingsley JM, Koguchi Y, Conrad V, Miller W, Gonzalez I, Poplonski T, Meeuwsen T, Howells-Ferreira A, Rattray R, Campbell M, Bifulco C, Dubay C, Bahjat K, Curti B, Urba W, Vetsika EK, Kallergi G, Aggouraki D, Lyristi Z, Katsarlinos P, Koinis F, Georgoulias V, Kotsakis A, Martin NT, Aeffner F, Kearney SJ, Black JC, Cerkovnik L, Pratte L, Kim R, Hirsch B, Krueger J, Gianani R, Martínez-Usatorre A, Jandus C, Donda A, Carretero-Iglesia L, Speiser DE, Zehn D, Rufer N, Romero P, Panda A, Mehnert J, Hirshfield KM, Riedlinger G, Damare S, Saunders T, Sokol L, Stein M, Poplin E, Rodriguez-Rodriguez L, Silk A, Chan N, Frankel M, Kane M, Malhotra J, Aisner J, Kaufman HL, Ali S, Ross J, White E, Bhanot G, Ganesan S, Monette A, Bergeron D, Amor AB, Meunier L, Caron C, Morou A, Kaufmann D, Liberman M, Jurisica I, Mes-Masson AM, Hamzaoui K, Lapointe R, Mongan A, Ku YC, Tom W, Sun Y, Pankov A, Looney T, Au-Young J, Hyland F, Conroy J, Morrison C, Glenn S, Burgher B, Ji H, Gardner M, Mongan A, Omilian AR, Conroy J, Bshara W, Angela O, Burgher B, Ji H, Glenn S, Morrison C, Mongan A, Obeid JM, Erdag G, Smolkin ME, Deacon DH, Patterson JW, Chen L, Bullock TN, Slingluff CL, Obeid JM, Erdag G, Deacon DH, Slingluff CL, Bullock TN, Loffredo JT, Vuyyuru R, Beyer S, Spires VM, Fox M, Ehrmann JM, Taylor KA, Korman AJ, Graziano RF, Page D, Sanchez K, Ballesteros-Merino C, Martel M, Bifulco C, Urba W, Fox B, Patel SP, De Macedo MP, Qin Y, Reuben A, Spencer C, Guindani M, Bassett R, Wargo J, Racolta A, Kelly B, Jones T, Polaske N, Theiss N, Robida M, Meridew J, Habensus I, Zhang L, Pestic-Dragovich L, Tang L, Sullivan RJ, Logan T, Khushalani N, Margolin K, Koon H, Olencki T, Hutson T, Curti B, Roder J, Blackmon S, Roder H, Stewart J, Amin A, Ernstoff MS, Clark JI, Atkins MB, Kaufman HL, Sosman J, Weber J, McDermott DF, Weber J, Kluger H, Halaban R, Snzol M, Roder H, Roder J, Asmellash S, Steingrimsson A, Blackmon S, Sullivan RJ, Wang C, Roman K, Clement A, Downing S, Hoyt C, Harder N, Schmidt G, Schoenmeyer R, Brieu N, Yigitsoy M, Madonna G, Botti G, Grimaldi A, Ascierto PA, Huss R, Athelogou M, Hessel H, Harder N, Buchner A, Schmidt G, Stief C, Huss R, Binnig G, Kirchner T, Sellappan S, Thyparambil S, Schwartz S, Cecchi F, Nguyen A, Vaske C. 31st Annual Meeting and Associated Programs of the Society for Immunotherapy of Cancer (SITC 2016): part one. J Immunother Cancer 2016. [PMCID: PMC5123387 DOI: 10.1186/s40425-016-0172-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Abstract
The SiRNA strategy is a potent and versatile method for modulating expression of any gene in various species for investigational or therapeutic purposes. Clinical translation of SiRNA-based approaches proved challenging, mainly due to the difficulty of targeted SiRNA delivery into cells of interest and the immunogenic side effects of oligonucleotide reagents. However, the intrinsic sensitivity of immune cells to nucleic acids can be utilized for the delivery of SiRNAs designed for the purpose of cancer immunotherapy. We have demonstrated that synthetic ligands for the intracellular receptor TLR9 can serve as targeting moiety for cell-specific delivery of SiRNAs. Chemically synthesized CpG-SiRNA conjugates are quickly internalized by TLR9-positive cells in the absence of transfection reagents, inducing target gene silencing. The CpG-SiRNA strategy allows for effective targeting of TLR9-positive cells in vivo after local or systemic administration of these oligonucleotides into mice.
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Affiliation(s)
- Dewan Md Sakib Hossain
- Department of Cancer Immunotherapeutics & Tumor Immunology, Beckman Research Institute at City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Dayson Moreira
- Department of Cancer Immunotherapeutics & Tumor Immunology, Beckman Research Institute at City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Qifang Zhang
- Department of Cancer Immunotherapeutics & Tumor Immunology, Beckman Research Institute at City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
| | - Sergey Nechaev
- Department of Cancer Immunotherapeutics & Tumor Immunology, Beckman Research Institute at City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
- Irell & Manella Graduate School of Biological Sciences, Beckman Research Institute at City of Hope, Duarte, CA, 91010, USA
| | - Piotr Swiderski
- Department of Molecular Medicine, Beckman Research Institute at City of Hope, Duarte, CA, 91010, USA
| | - Marcin Kortylewski
- Department of Cancer Immunotherapeutics & Tumor Immunology, Beckman Research Institute at City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA.
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Herrmann A, Priceman SJ, Swiderski P, Kujawski M, Xin H, Cherryholmes GA, Zhang W, Zhang C, Lahtz C, Kowolik C, Forman SJ, Kortylewski M, Yu H. CTLA4 aptamer delivers STAT3 siRNA to tumor-associated and malignant T cells. J Clin Invest 2015; 125:2547. [PMID: 26030229 DOI: 10.1172/jci82555] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Fong MY, Zhou W, Liu L, Alontaga AY, Chandra M, Ashby J, Chow A, O'Connor STF, Li S, Chin AR, Somlo G, Palomares M, Li Z, Tremblay JR, Tsuyada A, Sun G, Reid MA, Wu X, Swiderski P, Ren X, Shi Y, Kong M, Zhong W, Chen Y, Wang SE. Breast-cancer-secreted miR-122 reprograms glucose metabolism in premetastatic niche to promote metastasis. Nat Cell Biol 2015; 17:183-94. [PMID: 25621950 PMCID: PMC4380143 DOI: 10.1038/ncb3094] [Citation(s) in RCA: 813] [Impact Index Per Article: 90.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 12/11/2014] [Indexed: 02/07/2023]
Abstract
Reprogrammed glucose metabolism as a result of increased glycolysis and glucose uptake is a hallmark of cancer. Here we show that cancer cells can suppress glucose uptake by non-tumour cells in the pre-metastatic niche, by secreting vesicles that carry high levels of the miR-122 microRNA. High miR-122 levels in the circulation have been associated with metastasis in breast cancer patients and we show that cancer-cell-secreted miR-122 facilitates metastasis by increasing nutrient availability in the pre-metastatic niche. Mechanistically cancer-cell-derived miR-122 suppresses glucose uptake by niche cells in vitro and in vivo by downregulating the glycolytic enzyme pyruvate kinase (PKM). In vivo inhibition of miR-122 restores glucose uptake in distant organs, including brain and lungs, and decreases the incidence of metastasis. These results demonstrate that by modifying glucose utilization by recipient pre-metastatic niche cells, cancer-derived extracellular miR-122 is able to reprogram systemic energy metabolism to facilitate disease progression.
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Affiliation(s)
- Miranda Y Fong
- Department of Cancer Biology, City of Hope Beckman Research Institute, Duarte, California 91010, USA
| | - Weiying Zhou
- Department of Cancer Biology, City of Hope Beckman Research Institute, Duarte, California 91010, USA
| | - Liang Liu
- 1] Department of Cancer Biology, City of Hope Beckman Research Institute, Duarte, California 91010, USA [2] Department of Biotherapy and Key Laboratory of Cancer Immunology, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
| | - Aileen Y Alontaga
- Department of Molecular Medicine, City of Hope Beckman Research Institute, Duarte, California 91010, USA
| | - Manasa Chandra
- 1] Department of Cancer Biology, City of Hope Beckman Research Institute, Duarte, California 91010, USA [2] City of Hope Irell &Manella Graduate School of Biological Sciences, Duarte, California 91010, USA
| | - Jonathan Ashby
- Department of Chemistry, University of California, Riverside, California 92521, USA
| | - Amy Chow
- Department of Cancer Biology, City of Hope Beckman Research Institute, Duarte, California 91010, USA
| | | | - Shasha Li
- Department of Cancer Biology, City of Hope Beckman Research Institute, Duarte, California 91010, USA
| | - Andrew R Chin
- 1] Department of Cancer Biology, City of Hope Beckman Research Institute, Duarte, California 91010, USA [2] City of Hope Irell &Manella Graduate School of Biological Sciences, Duarte, California 91010, USA
| | - George Somlo
- Department of Medical Oncology, City of Hope Medical Center, Duarte, California 91010, USA
| | - Melanie Palomares
- 1] Department of Medical Oncology, City of Hope Medical Center, Duarte, California 91010, USA [2] Department of Population Sciences, City of Hope Beckman Research Institute, Duarte, California 91010, USA
| | - Zhuo Li
- Core of Electron Microscopy, City of Hope Comprehensive Cancer Center, Duarte, California 91010, USA
| | - Jacob R Tremblay
- 1] Department of Cancer Biology, City of Hope Beckman Research Institute, Duarte, California 91010, USA [2] City of Hope Irell &Manella Graduate School of Biological Sciences, Duarte, California 91010, USA
| | - Akihiro Tsuyada
- Department of Cancer Biology, City of Hope Beckman Research Institute, Duarte, California 91010, USA
| | - Guoqiang Sun
- Department of Neurosciences, City of Hope Beckman Research Institute, Duarte, California 91010, USA
| | - Michael A Reid
- Department of Cancer Biology, City of Hope Beckman Research Institute, Duarte, California 91010, USA
| | - Xiwei Wu
- Core of Integrative Genomics, City of Hope Comprehensive Cancer Center, Duarte, California 91010, USA
| | - Piotr Swiderski
- Core of Synthetic and Biopolymer Chemistry, City of Hope Comprehensive Cancer Center, Duarte, California 91010, USA
| | - Xiubao Ren
- Department of Biotherapy and Key Laboratory of Cancer Immunology, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
| | - Yanhong Shi
- Department of Neurosciences, City of Hope Beckman Research Institute, Duarte, California 91010, USA
| | - Mei Kong
- Department of Cancer Biology, City of Hope Beckman Research Institute, Duarte, California 91010, USA
| | - Wenwan Zhong
- Department of Chemistry, University of California, Riverside, California 92521, USA
| | - Yuan Chen
- Department of Molecular Medicine, City of Hope Beckman Research Institute, Duarte, California 91010, USA
| | - Shizhen Emily Wang
- 1] Department of Cancer Biology, City of Hope Beckman Research Institute, Duarte, California 91010, USA [2] Department of Biotherapy and Key Laboratory of Cancer Immunology, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, China
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Zhang Q, Hossain S, Moreira D, Duttagupta P, Zhao X, Swiderski P, Kortylewski M. Cell-selective oligonucleotide STAT3 inhibitor for immunotherapy of human acute myeloid leukemia. J Immunother Cancer 2015. [PMCID: PMC4649315 DOI: 10.1186/2051-1426-3-s2-p362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Zhang Q, Buettner R, Nechaev S, Moreira D, Jozwiak A, Swiderski P, Kortylewski M. Abstract 2569: Systemic delivery of STAT3 blocking/TLR9 activating oligodeoxynucleotides induces regression of mouse and human acute myeloid leukemia. Cancer Res 2014. [DOI: 10.1158/1538-7445.am2014-2569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
STAT3 is persistently activated in cancer cells and in diverse tumor-associated immune cells and plays critical role for tumorigenesis and immune evasion. As a transcription factor uniting signaling from a variety of receptors and kinases, STAT3 is a highly desirable but challenging therapeutic target. An attractive strategy for inhibiting STAT3 is the use of oligodeoxynucleotides (ODNs) to prevent STAT3 DNA binding and transcriptional activation. The limiting factor in the clinical application of STAT3 ODNs is difficulty in their targeted delivery, additionally complicated by the inherent sensitivity of the immune system to nucleic acids. However, immune cells may themselves be essential targets for cancer therapy. We previously demonstrated that ligand for the intracellular receptor TLR9 (CpG ODN) allows for the uptake of oligonucleotides specifically by TLR9-positive target cells. Now, we used this approach to deliver STAT3 ODN inhibitor into variety of mouse and human target cells both in vitro and in vivo. These include normal myeloid cells or B lymphocytes and malignant cells, such as acute myeloid leukemia (AML) and B cell lymphoma. As expected, STAT3 inhibition resulted in various degrees of cytotoxic effects in tumor cells while it did not affect viability of non-malignant cells. Due to design and chemical modifications of the backbone, the CpG-STAT3 ODN has improved resistance to degradation in human serum with half-life exceeding 48 hrs. Thus, we assessed whether it is also suitable for systemic administration against blood cancers. As shown by our studies using disseminated human MV4-11 AML, repeated i.v. injections of CpG-STAT3 ODN (5 mg/kg) resulted in leukemia regression within two weeks. The antitumor efficacy of this strategy is enhanced by combined effect of STAT3-blocking/TLR9-triggering in immunocompetent mice. In syngeneic model of mouse AML, i.v. administration of CpG-STAT3 ODN over two weeks induced tumor regression in bone marrow, spleen and blood. In addition, secondary transplant experiments indicated reduced leukemia-initiating potential of AML cells in vivo treated with CpG-STAT3 ODN. Treatment with control CpG-scrambled ODN did not show significant antitumor effects in any of our tumor models. The antitumor effect was accompanied by immune cell activation and T cell infiltration into various organs. These results underscore potential of further development of this strategy for clinical application in AML and likely B cell lymphoma therapy.
Citation Format: Qifang Zhang, Ralf Buettner, Sergey Nechaev, Dayson Moreira, Agnieszka Jozwiak, Piotr Swiderski, Marcin Kortylewski. Systemic delivery of STAT3 blocking/TLR9 activating oligodeoxynucleotides induces regression of mouse and human acute myeloid leukemia. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 2569. doi:10.1158/1538-7445.AM2014-2569
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Affiliation(s)
- Qifang Zhang
- City of Hope Beckman Research Institute, Duarte, CA
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Herrmann A, Cherryholmes G, Schroeder A, Phallen J, Alizadeh D, Xin H, Wang T, Lee H, Lahtz C, Swiderski P, Armstrong B, Kowolik C, Gallia GL, Lim M, Brown C, Badie B, Forman S, Kortylewski M, Jove R, Yu H. TLR9 is critical for glioma stem cell maintenance and targeting. Cancer Res 2014; 74:5218-28. [PMID: 25047528 DOI: 10.1158/0008-5472.can-14-1151] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Understanding supports for cancer stem-like cells in malignant glioma may suggest therapeutic strategies for their elimination. Here, we show that the Toll-like receptor TLR9 is elevated in glioma stem-like cells (GSC) in which it contributes to glioma growth. TLR9 overexpression is regulated by STAT3, which is required for GSC maintenance. Stimulation of TLR9 with a CpG ligand (CpG ODN) promoted GSC growth, whereas silencing TLR9 expression abrogated GSC development. CpG-ODN treatment induced Frizzled4-dependent activation of JAK2, thereby activating STAT3. Targeted delivery of siRNA into GSC was achieved via TLR9 using CpG-siRNA conjugates. Through local or systemic treatment, administration of CpG-Stat3 siRNA to silence STAT3 in vivo reduced GSC along with glioma growth. Our findings identify TLR9 as a functional marker for GSC and a target for the delivery of efficacious therapeutics for glioma treatment. Cancer Res; 74(18); 5218-28. ©2014 AACR.
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Affiliation(s)
- Andreas Herrmann
- Department of Cancer Immunotherapeutics and Tumor Immunology, Beckman Research Institute at City of Hope Medical Center, Duarte, California
| | - Gregory Cherryholmes
- Department of Cancer Immunotherapeutics and Tumor Immunology, Beckman Research Institute at City of Hope Medical Center, Duarte, California
| | - Anne Schroeder
- Department of Molecular Medicine, Beckman Research Institute at City of Hope Medical Center, Duarte, California
| | - Jillian Phallen
- Department of Neurosurgery at the Sidney Kimmel Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Darya Alizadeh
- Division of Neurosurgery, City of Hope Medical Center, Duarte, California
| | - Hong Xin
- Department of Cancer Immunotherapeutics and Tumor Immunology, Beckman Research Institute at City of Hope Medical Center, Duarte, California
| | - Tianyi Wang
- Department of Cancer Immunotherapeutics and Tumor Immunology, Beckman Research Institute at City of Hope Medical Center, Duarte, California
| | - Heehyoung Lee
- Department of Cancer Immunotherapeutics and Tumor Immunology, Beckman Research Institute at City of Hope Medical Center, Duarte, California
| | - Christoph Lahtz
- Department of Cancer Immunotherapeutics and Tumor Immunology, Beckman Research Institute at City of Hope Medical Center, Duarte, California
| | - Piotr Swiderski
- Department of Molecular Medicine, Beckman Research Institute at City of Hope Medical Center, Duarte, California
| | - Brian Armstrong
- Department of Neuroscience, Beckman Research Institute at City of Hope Medical Center, Duarte, California
| | - Claudia Kowolik
- Department of Molecular Medicine, Beckman Research Institute at City of Hope Medical Center, Duarte, California
| | - Gary L Gallia
- Department of Neurosurgery at the Sidney Kimmel Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Michael Lim
- Department of Neurosurgery at the Sidney Kimmel Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Christine Brown
- Department of Hematology and Hematopoietic Cell Transplantation, City of Hope Medical Center, Duarte, California
| | - Behnam Badie
- Division of Neurosurgery, City of Hope Medical Center, Duarte, California
| | - Stephen Forman
- Department of Hematology and Hematopoietic Cell Transplantation, City of Hope Medical Center, Duarte, California
| | - Marcin Kortylewski
- Department of Cancer Immunotherapeutics and Tumor Immunology, Beckman Research Institute at City of Hope Medical Center, Duarte, California
| | - Richard Jove
- Department of Molecular Medicine, Beckman Research Institute at City of Hope Medical Center, Duarte, California
| | - Hua Yu
- Department of Cancer Immunotherapeutics and Tumor Immunology, Beckman Research Institute at City of Hope Medical Center, Duarte, California. Center for Translational Medicine, Shanghai Zhangjiang High-Tech Park, Shanghai, China.
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Herrmann A, Priceman SJ, Swiderski P, Kujawski M, Xin H, Cherryholmes GA, Zhang W, Zhang C, Lahtz C, Kowolik C, Forman SJ, Kortylewski M, Yu H. CTLA4 aptamer delivers STAT3 siRNA to tumor-associated and malignant T cells. J Clin Invest 2014; 124:2977-87. [PMID: 24892807 DOI: 10.1172/jci73174] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 04/10/2014] [Indexed: 01/05/2023] Open
Abstract
Intracellular therapeutic targets that define tumor immunosuppression in both tumor cells and T cells remain intractable. Here, we have shown that administration of a covalently linked siRNA to an aptamer (apt) that selectively binds cytotoxic T lymphocyte-associated antigen 4 (CTLA4(apt)) allows gene silencing in exhausted CD8⁺ T cells and Tregs in tumors as well as CTLA4-expressing malignant T cells. CTLA4 expression was upregulated in CD8⁺ T cells in the tumor milieu; therefore, CTLA4(apt) fused to a STAT3-targeting siRNA (CTLA4(apt)-STAT3 siRNA) resulted in internalization into tumor-associated CD8⁺ T cells and silencing of STAT3, which activated tumor antigen-specific T cells in murine models. Both local and systemic administration of CTLA4(apt)-STAT3 siRNA dramatically reduced tumor-associated Tregs. Furthermore, CTLA4(apt)-STAT3 siRNA potently inhibited tumor growth and metastasis in various mouse tumor models. Importantly, CTLA4 expression is observed in T cells of patients with blood malignancies, and CTLA4(apt)-STAT3 siRNA treatment of immunodeficient mice bearing human T cell lymphomas promoted tumor cell apoptosis and tumor growth inhibition. These data demonstrate that a CTLA4(apt)-based siRNA delivery strategy allows gene silencing in both tumor-associated T cells and tumor cells and inhibits tumor growth and metastasis.
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MESH Headings
- Animals
- Aptamers, Nucleotide/administration & dosage
- Aptamers, Nucleotide/genetics
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/metabolism
- CTLA-4 Antigen/genetics
- Cell Line, Tumor
- Gene Silencing
- Humans
- Immunotherapy, Adoptive/methods
- Lymphocytes, Tumor-Infiltrating/immunology
- Lymphocytes, Tumor-Infiltrating/metabolism
- Lymphoma, T-Cell/immunology
- Lymphoma, T-Cell/therapy
- Melanoma, Experimental/immunology
- Melanoma, Experimental/therapy
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Nude
- RNA, Small Interfering/administration & dosage
- RNA, Small Interfering/genetics
- STAT3 Transcription Factor/antagonists & inhibitors
- STAT3 Transcription Factor/genetics
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
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28
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Zhang Q, Md Sakib Hossain D, Nechaev S, Buettner R, Swiderski P, Jozwiak A, Forman SJ, Bhatia R, Kuo YH, Kortylewski M. Systemic delivery of TLR9-activating/STAT3-blocking oligonucleotides induces leukemia regression. J Immunother Cancer 2014. [PMCID: PMC4288391 DOI: 10.1186/2051-1426-2-s3-p107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
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29
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Reebye V, Sætrom P, Mintz P, Huang K, Swiderski P, Peng L, Liu C, Liu X, Jensen S, Zacharoulis D, Kostomitsopoulos N, Kasahara N, Nicholls J, Jiao L, Pai M, Mizandari M, Chikovani T, Emara M, Haoudi A, Tomalia D, Rossi J, Habib N, Spalding D. Novel RNA oligonucleotide improves liver function and inhibits liver carcinogenesis in vivo. Hepatology 2014; 59:216-27. [PMID: 23929703 PMCID: PMC4655108 DOI: 10.1002/hep.26669] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Accepted: 07/31/2013] [Indexed: 12/11/2022]
Abstract
UNLABELLED Hepatocellular carcinoma (HCC) occurs predominantly in patients with liver cirrhosis. Here we show an innovative RNA-based targeted approach to enhance endogenous albumin production while reducing liver tumor burden. We designed short-activating RNAs (saRNA) to enhance expression of C/EBPα (CCAAT/enhancer-binding protein-α), a transcriptional regulator and activator of albumin gene expression. Increased levels of both C/EBPα and albumin mRNA in addition to a 3-fold increase in albumin secretion and 50% decrease in cell proliferation was observed in C/EBPα-saRNA transfected HepG2 cells. Intravenous injection of C/EBPα-saRNA in a cirrhotic rat model with multifocal liver tumors increased circulating serum albumin by over 30%, showing evidence of improved liver function. Tumor burden decreased by 80% (P = 0.003) with a 40% reduction in a marker of preneoplastic transformation. Since C/EBPα has known antiproliferative activities by way of retinoblastoma, p21, and cyclins, we used messenger RNA (mRNA) expression liver cancer-specific microarray in C/EBPα-saRNA-transfected HepG2 cells to confirm down-regulation of genes strongly enriched for negative regulation of apoptosis, angiogenesis, and metastasis. Up-regulated genes were enriched for tumor suppressors and positive regulators of cell differentiation. A quantitative polymerase chain reaction (PCR) and western blot analysis of C/EBPα-saRNA-transfected cells suggested that in addition to the known antiproliferative targets of C/EBPα, we also observed suppression of interleukin (IL)6R, c-Myc, and reduced STAT3 phosphorylation. CONCLUSION A novel injectable saRNA-oligonucleotide that enhances C/EBPα expression successfully reduces tumor burden and simultaneously improves liver function in a clinically relevant liver cirrhosis/HCC model.
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MESH Headings
- Albumins/metabolism
- Animals
- CCAAT-Enhancer-Binding Protein-alpha/metabolism
- Carcinoma, Hepatocellular/complications
- Carcinoma, Hepatocellular/drug therapy
- Carcinoma, Hepatocellular/pathology
- Drug Evaluation, Preclinical
- Gene Expression Regulation
- Genetic Therapy
- Hep G2 Cells
- Humans
- Injections, Intravenous
- Liver/pathology
- Liver Cirrhosis/complications
- Liver Function Tests
- Liver Neoplasms, Experimental/complications
- Liver Neoplasms, Experimental/drug therapy
- Liver Neoplasms, Experimental/pathology
- Male
- Oligonucleotide Array Sequence Analysis
- Proto-Oncogene Proteins c-myc/metabolism
- RNA/therapeutic use
- Rats
- Rats, Wistar
- Receptors, Interleukin-6/metabolism
- STAT3 Transcription Factor/metabolism
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Affiliation(s)
- V. Reebye
- Department of Surgery and Cancer; Faculty of Medicine, Imperial College London, London, W12 0NN, UK
| | - P. Sætrom
- Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, NO-7489 Trondheim, Norway
- Department of Computer and Information Science, Norwegian University of Science and Technology, NO-7489 Trondheim, Norway
| | - P.J. Mintz
- Department of Surgery and Cancer; Faculty of Medicine, Imperial College London, London, W12 0NN, UK
| | - K.W. Huang
- Department of Surgery & Hepatitis Research Center. National Taiwan University Hospital, Taipei City, 10002, Taiwan
- Graduate Institute of Clinical Medicine, National Taiwan University. Taipei City, 10002, Taiwan
| | - P. Swiderski
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope, CA 91010. USA
| | - L. Peng
- Centre Interdisciplinaire de Nanoscience de Marseille, 13288 Marseille, France
| | - C. Liu
- Centre Interdisciplinaire de Nanoscience de Marseille, 13288 Marseille, France
| | - X.X. Liu
- Centre Interdisciplinaire de Nanoscience de Marseille, 13288 Marseille, France
| | - S. Jensen
- Department of Surgery and Cancer; Faculty of Medicine, Imperial College London, London, W12 0NN, UK
| | - D. Zacharoulis
- Department of Surgery, University Hospital of Larissa Mezourlo, Larisa, Greece
| | - N. Kostomitsopoulos
- Centre for Experimental Surgery, Biomedical Research Foundation of the Academy of Athens, 11527 Athens, Greece
| | - N. Kasahara
- Department of Medicine, UCLA School of Medicine, Los Angeles, CA 90095-7019, USA
| | - J.P. Nicholls
- Department of Surgery and Cancer; Faculty of Medicine, Imperial College London, London, W12 0NN, UK
| | - L.R. Jiao
- Department of Surgery and Cancer; Faculty of Medicine, Imperial College London, London, W12 0NN, UK
| | - M. Pai
- Department of Surgery and Cancer; Faculty of Medicine, Imperial College London, London, W12 0NN, UK
| | - M. Mizandari
- Department of Radiology. Tbilisi 1 Hospital University Clinic. High Technology Medical Center. Tbilisi, Georgia
| | - T. Chikovani
- Department of Microbiology and Immunology. Faculty of Medicine. Tbilisi State Medical University. Tbilisi, Georgia
| | - M.M. Emara
- Qatar Biomedical Research Institute, Education City, P.O BOX 5825, Doha, Qatar
| | - A. Haoudi
- Qatar Biomedical Research Institute, Education City, P.O BOX 5825, Doha, Qatar
| | - D.A. Tomalia
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA, USA
| | - J.J. Rossi
- Division of Molecular Biology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - N.A. Habib
- Department of Surgery and Cancer; Faculty of Medicine, Imperial College London, London, W12 0NN, UK
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30
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Huang KW, Reebye V, Mintz PJ, Saetrom P, Swiderski P, Peng L, Liu C, Liu XX, Jensen SL, Zacharoulis D, Kostomitsopoulos N, Kasahara N, Nicholls J, Jiao LR, Pai M, Spalding D, Farzaneh F, Mizandari M, Chikovani T, Emara M, Haoudi A, Tomalia D, Rossi JJ, Habib NA. Abstract B225: Short activating RNA (saRNA) targeting C/EBPA significantly inhibits cell proliferation of undifferentiated cancer cells. Mol Cancer Ther 2013. [DOI: 10.1158/1535-7163.targ-13-b225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
In general, ‘poorly’ differentiated tumours have a worse prognosis when compared to more ‘well’ differentiated ones. Therefore, the use of a biological agent that could promote differentiation might have a therapeutic advantage. CCAAT enhancer binding protein alpha (C/EBPα) is a transcription factor known to be involved in the regulation of cell differentiation in a number of tissue types. Loss of C/EBPα expression, for example, causes abnormal levels of biliary transcription factors, impaired hepatocyte maturation and liver fibrosis. In contrast C/EBPα overexpression inhibits the development of hepatocellular carcinoma, restores myeloid differentiation and prevents hyperproliferation of hematopoietic cells in acute myeloid leukemia. In this study, we tested the effect of stimulation of C/EBPα expression by a specific small activating RNA (saRNA) on a panel of cell lines representing both well-differentiated and poorly-differentiated cancer cell types. The C/EBPα-saRNA inhibited proliferation of poorly differentiated small cell lung cancer and pancreatic cancer cell lines compared to treatment with scrambled double-stranded RNA controls. However C/EBPα-saRNA was not as effective in suppressing proliferation in well-differentiated insulinoma and breast cancer (MCF7) cell lines. Comparison of endogenous levels of C/EBPα, using qPCR and Western blots, showed that undifferentiated tumour cell lines expressed lower levels of C/EBPα when compared to the well-differentiated tumor types. Gene expression analysis in tumours from xenografts and cirrhotic DEN treated HCC rats, demonstrated that saRNA mediated stimulation of C/EBPα expression, could suppress the steady-state transcript levels for KLF4, OCT3, SOX2, C-Myc and C-Kit. The inhibited expression of these transcription factors correlated with greater expression of differentiation markers and reduced epithelial mesenchymal transition by the C/EBPα saRNA treated cells. Our results suggest that saRNA mediated stimulation of C/EBPα, could be of potential therapeutic value, especially in poorly differentiated cancers. Furthermore, intracellular expression levels of C/EBPα could be an important prognostic factor for predicting the therapeutic response in poor or un-differentiated tumors.
Citation Information: Mol Cancer Ther 2013;12(11 Suppl):B225.
Citation Format: K W. Huang, Vikash Reebye, Paul J. Mintz, Pal Saetrom, Piotr Swiderski, L Peng, C Liu, X X. Liu, Steen Lindkaer Jensen, Dimitris Zacharoulis, Nikos Kostomitsopoulos, Noriyaki Kasahara, Joanna Nicholls, Long R. Jiao, Madhava Pai, Duncan Spalding, Farzin Farzaneh, Malkhaz Mizandari, Tina Chikovani, Mohammed Emara, Abdelali Haoudi, Don Tomalia, John J. Rossi, Nagy A. Habib. Short activating RNA (saRNA) targeting C/EBPA significantly inhibits cell proliferation of undifferentiated cancer cells. [abstract]. In: Proceedings of the AACR-NCI-EORTC International Conference: Molecular Targets and Cancer Therapeutics; 2013 Oct 19-23; Boston, MA. Philadelphia (PA): AACR; Mol Cancer Ther 2013;12(11 Suppl):Abstract nr B225.
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Affiliation(s)
- K W. Huang
- 1National Taiwan University Hospital, Taipei City, Taiwan
| | | | | | - Pal Saetrom
- 3Norwegian University of Science & Technology, Trondheim, Norway
| | | | - L Peng
- 5Centre Interdiscipinaire de Nanoscience de Marseille, Marseille, France
| | - C Liu
- 5Centre Interdiscipinaire de Nanoscience de Marseille, Marseille, France
| | - X X. Liu
- 5Centre Interdiscipinaire de Nanoscience de Marseille, Marseille, France
| | | | | | | | | | | | - Long R. Jiao
- 2Imperial College London, London, United Kingdom
| | - Madhava Pai
- 2Imperial College London, London, United Kingdom
| | | | | | | | | | | | | | - Don Tomalia
- 12University of Pennsylvania, Philadelphia, PA
| | - John J. Rossi
- 4Beckman Research Institute of the City of Hope, Duarte, CA
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31
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Gao C, Kozlowska A, Nechaev S, Li H, Zhang Q, Hossain DMS, Kowolik CM, Chu P, Swiderski P, Diamond DJ, Pal SK, Raubitschek A, Kortylewski M. TLR9 signaling in the tumor microenvironment initiates cancer recurrence after radiotherapy. Cancer Res 2013; 73:7211-21. [PMID: 24154870 DOI: 10.1158/0008-5472.can-13-1314] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Cancer radiotherapy may be immunogenic, but it is unclear why its immunogenic effects are rarely sufficient to prevent tumor recurrence. Here, we report a novel Toll-like receptor 9 (TLR9)-dependent mechanism that initiates tumor regrowth after local radiotherapy. Systemic inhibition of TLR9, but not TLR4, delayed tumor recurrence in mouse models of B16 melanoma, MB49 bladder cancer, and CT26 colon cancer after localized high-dose tumor irradiation. Soluble factors in the microenvironment of regressing tumors triggered TLR9 signaling in freshly recruited myeloid cells appearing within four days of radiotherapy. The tumorigenic effects of TLR9 depended on MyD88/NF-κB-mediated upregulation of interleukin (IL)-6 expression, which in turn resulted in downstream activation of Jak/STAT3 signaling in myeloid cells. In comparing global gene expression in wild-type, TLR9-, or STAT3-deficient myeloid cells derived from irradiated tumors, we identified a unique set of TLR9/STAT3-regulated genes involved in tumor-promoting inflammation and revascularization. Blocking STAT3 function by two myeloid-specific genetic strategies corrected TLR9-mediated cancer recurrence after radiotherapy. Our results suggest that combining localized tumor irradiation with myeloid cell-specific inhibition of TLR9/STAT3 signaling may help eliminate radioresistant cancers.
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Affiliation(s)
- Chan Gao
- Authors' Affiliations: Departments of Cancer Immunotherapeutics and Tumor Immunology, Medical Oncology, and Pathology; Bioinformatics Core Facility; DNA/RNA Synthesis Core Facility; Division of Translational Vaccine Research; Irell and Manella Graduate School of Biological Sciences, Beckman Research Institute at City of Hope, Duarte, California; and Medical Biotechnology, University of Medical Sciences, Poznan, Poland
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32
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Nechaev S, Gao C, Moreira D, Swiderski P, Jozwiak A, Kowolik CM, Zhou J, Armstrong B, Raubitschek A, Rossi JJ, Kortylewski M. Intracellular processing of immunostimulatory CpG-siRNA: Toll-like receptor 9 facilitates siRNA dicing and endosomal escape. J Control Release 2013; 170:307-15. [PMID: 23777886 DOI: 10.1016/j.jconrel.2013.06.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2013] [Revised: 06/03/2013] [Accepted: 06/08/2013] [Indexed: 02/01/2023]
Abstract
Dicer-substrate siRNAs equipped with CpG oligodeoxyribonucleotides overcome the major hurdle in cell-specific siRNA delivery. The CpG-siRNA molecules are actively internalized by TLR9+ cells, without the need for transfection reagents, leading to RNA interference both in vitro and in vivo. Here, we elucidate the molecular mechanisms of CpG-siRNA processing in target cells. We show that shortly after uptake into early endosomes (EE), CpG and siRNA parts of the conjugate are uncoupled in the presence of Dicer endonuclease. Diced siRNA molecules are translocated from endosomes to endoplasmic reticulum, where they can interact with the RNA interference machinery. We previously observed that even though TLR9 is not involved in CpG-siRNA uptake, it is indispensable for induction of gene silencing. To explain the role of TLR9 in intracellular processing of CpG-siRNA, we used primary macrophages derived from wild-type and Tlr9-deficient mice. Macrophages lacking TLR9 showed extended endosomal colocalization of CpG and siRNA parts of the conjugate. However, Tlr9 ablation did not interfere with the interaction of CpG-siRNA with Dicer as shown by in situ proximity ligation assay. Using CpG-siRNA labeled with pH-sensitive dye, we finally identified that lack of TLR9 in macrophages resulted in significant retention of the siRNA in endosomes. Thus, TLR9 facilitates the critical step following CpG-siRNA uncoupling, which is cytoplasmic release of the diced siRNA. These findings suggest that the class of immunostimulatory siRNAs may benefit from activation of certain endosomal immune receptors, such as TLR9, in augmented gene silencing and therapeutic efficacy.
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Affiliation(s)
- Sergey Nechaev
- Department of Cancer Immunotherapeutics & Tumor Immunology, Beckman Research Institute at City of Hope, 1500 E. Duarte Rd., Duarte, CA 91010, USA
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33
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Zhou J, Tiemann K, Chomchan P, Alluin J, Swiderski P, Burnett J, Zhang X, Forman S, Chen R, Rossi J. Dual functional BAFF receptor aptamers inhibit ligand-induced proliferation and deliver siRNAs to NHL cells. Nucleic Acids Res 2013; 41:4266-83. [PMID: 23470998 PMCID: PMC3627597 DOI: 10.1093/nar/gkt125] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The B-cell–activating factor (BAFF)-receptor (BAFF-R) is restrictedly expressed on B-cells and is often overexpressed in B-cell malignancies, such as non-Hodgkin’s lymphoma. On binding to its ligand BAFF, proliferation and cell survival are increased, enabling cancer cells to proliferate faster than normal B-cells. Nucleic acid aptamers can bind to target ligands with high specificity and affinity and may offer therapeutic advantages over antibody-based approaches. In this study, we isolated several 2′-F–modified RNA aptamers targeting the B-cell–specific BAFF-R with nanomolar affinity using in vitro SELEX technology. The aptamers efficiently bound to BAFF-R on the surface of B-cells, blocked BAFF-mediated B-cell proliferation and were internalized into B-cells. Furthermore, chimeric molecules between the BAFF-R aptamer and small interfering RNAs (siRNAs) were specifically delivered to BAFF-R expressing cells with a similar efficiency as the aptamer alone. We demonstrate that a signal transducer and activator of transcription 3 (STAT3) siRNA delivered by the BAFF-R aptamer was processed by Dicer and efficiently reduced levels of target mRNA and protein in Jeko-1 and Z138 human B-cell lines. Collectively, our results demonstrate that the dual-functional BAFF-R aptamer–siRNA conjugates are able to deliver siRNAs and block ligand mediated processes, suggesting it might be a promising combinatorial therapeutic agent for B-cell malignancies.
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Affiliation(s)
- Jiehua Zhou
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
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Nechaev S, Zhang Q, Swiderski P, Kortylewski M. Abstract B5: CpG-siRNA conjugates: Overcoming cancer immunoresistance. Clin Cancer Res 2012. [DOI: 10.1158/1078-0432.mechres-b5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Small interfering RNA (siRNA) have been proved to be an effective tool for treating diseases caused by gene expression abnormalities. However, clinical relevance of siRNA technology is compromised by multiple obstacles, such as lack of cellular specificity, low efficiency of cellular uptake and/or poor cytoplasmic release. We have previously demonstrated that natural capability of certain immune cells to recognize non-methylated CpG motifs in DNA oligonucleotides can be harnessed for cell-specific siRNA delivery. The siRNA molecules conjugated to CpG oligonucleotides (CpG-siRNA) are efficiently internalized and bind to the intracellular Toll-like receptor 9 (TLR9) in human and mouse dendritic cells as well as in certain TLR9-positive tumor cells. We designed a CpG-siRNA targeting Stat3 (signal transducer and activator of transcription-3), a transcription factor, which is constitutively activated in majority of mouse and human cancers. Oncogenic Stat3 signaling regulates cancer cell proliferation, survival and promotes tumor immunoresistance. We have previously shown that CpG-Stat3 siRNA can eliminate Stat3 signaling in tumor-infiltrating myeloid cells, resulting in potent antitumor immunity. In the current study, we investigated the intracellular mechanism of action of CpG-siRNA conjugates. We have demonstrated that internalized CpG-siRNAs are recruited into endosomes by dynamin-dependent mechanism and bind to endosomal TLR9 receptor. Further events include uncoupling of siRNA from the CpG moiety by Dicer endonuclease, and rapid translocation of siRNA to endoplasmic reticulum for recruitment into functional RISC (RNA interference silencing complex). We confirmed the target gene silencing both in vitro and in vivo, and proved that it occurs through RNA interference mechanism. Our current results indicate that downstream effectors of TLR9 pathway may be involved in RISC assembly and/or activation. Overall, the CpG-siRNA strategy provides a novel opportunity for overcoming cancer immunoresistance with translational potential for therapy of various malignancies.
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Affiliation(s)
- Sergey Nechaev
- 1Irell and Manella Graduate School of Biological Sciences, Duarte, CA, 2Beckman Research Institute, City of Hope National Medical Center, Duarte, CA
| | - Qifang Zhang
- 1Irell and Manella Graduate School of Biological Sciences, Duarte, CA, 2Beckman Research Institute, City of Hope National Medical Center, Duarte, CA
| | - Piotr Swiderski
- 1Irell and Manella Graduate School of Biological Sciences, Duarte, CA, 2Beckman Research Institute, City of Hope National Medical Center, Duarte, CA
| | - Marcin Kortylewski
- 1Irell and Manella Graduate School of Biological Sciences, Duarte, CA, 2Beckman Research Institute, City of Hope National Medical Center, Duarte, CA
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Zhou J, Neff CP, Liu X, Zhang J, Li H, Smith DD, Swiderski P, Aboellail T, Huang Y, Du Q, Liang Z, Peng L, Akkina R, Rossi JJ. Systemic administration of combinatorial dsiRNAs via nanoparticles efficiently suppresses HIV-1 infection in humanized mice. Mol Ther 2011; 19:2228-38. [PMID: 21952167 DOI: 10.1038/mt.2011.207] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
We evaluated the in vivo efficacy of structurally flexible, cationic PAMAM dendrimers as a small interfering RNA (siRNA) delivery system in a Rag2(-)/-γc-/- (RAG-hu) humanized mouse model for HIV-1 infection. HIV-infected humanized Rag2-/-γc-/- mice (RAG-hu) were injected intravenously (i.v.) with dendrimer-siRNA nanoparticles consisting of a cocktail of dicer substrate siRNAs (dsiRNAs) targeting both viral and cellular transcripts. We report in this study that the dendrimer-dsiRNA treatment suppressed HIV-1 infection by several orders of magnitude and protected against viral induced CD4(+) T-cell depletion. We also demonstrated that follow-up injections of the dendrimer-cocktailed dsiRNAs following viral rebound resulted in complete inhibition of HIV-1 titers. Biodistribution studies demonstrate that the dendrimer-dsiRNAs preferentially accumulate in peripheral blood mononuclear cells (PBMCs) and liver and do not exhibit any discernable toxicity. These data demonstrate for the first time efficacious combinatorial delivery of anti-host and -viral siRNAs for HIV-1 treatment in vivo. The dendrimer delivery approach therefore represents a promising method for systemic delivery of combinations of siRNAs for treatment of HIV-1 infection.
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Affiliation(s)
- Jiehua Zhou
- Department of Molecular and Cellular Biology, Beckman Research Institute of City of Hope, City of Hope, Duarte, California 91010, USA
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36
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Neff CP, Zhou J, Remling L, Kuruvilla J, Zhang J, Li H, Smith DD, Swiderski P, Rossi JJ, Akkina R. An aptamer-siRNA chimera suppresses HIV-1 viral loads and protects from helper CD4(+) T cell decline in humanized mice. Sci Transl Med 2011; 3:66ra6. [PMID: 21248316 DOI: 10.1126/scitranslmed.3001581] [Citation(s) in RCA: 214] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Therapeutic strategies designed to treat HIV infection with combinations of antiviral drugs have proven to be the best approach for slowing the progression to AIDS. Despite this progress, there are problems with viral drug resistance and toxicity, necessitating new approaches to combating HIV-1 infection. We have therefore developed a different combination approach for the treatment of HIV infection in which an RNA aptamer, with high binding affinity to the HIV-1 envelope (gp120) protein and virus neutralization properties, is attached to and delivers a small interfering RNA (siRNA) that triggers sequence-specific degradation of HIV RNAs. We have tested the antiviral activities of these chimeric RNAs in a humanized Rag2(-/-)γc(-/-) (RAG-hu) mouse model with multilineage human hematopoiesis. In this animal model, HIV-1 replication and CD4(+) T cell depletion mimic the situation seen in human HIV-infected patients. Our results show that treatment with either the anti-gp120 aptamer or the aptamer-siRNA chimera suppressed HIV-1 replication by several orders of magnitude and prevented the viral-induced helper CD4(+) T cell decline. In comparison to the aptamer alone, the aptamer-siRNA combination provided more extensive inhibition, resulting in a significantly longer antiviral effect that extended several weeks beyond the last injected dose. The aptamer thus acts as a broad-spectrum HIV-neutralizing agent and an siRNA delivery vehicle. The combined aptamer-siRNA agent provides an attractive, nontoxic therapeutic approach for treatment of HIV infection.
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Affiliation(s)
- Charles Preston Neff
- Department of Microbiology, Immunology and Pathology, Colorado State University, 1619 Campus Delivery, Fort Collins, CO 80523, USA
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37
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Zhou J, Swiderski P, Li H, Zhang J, Neff CP, Akkina R, Rossi JJ. Selection, characterization and application of new RNA HIV gp 120 aptamers for facile delivery of Dicer substrate siRNAs into HIV infected cells. Nucleic Acids Res 2009; 37:3094-109. [PMID: 19304999 PMCID: PMC2685106 DOI: 10.1093/nar/gkp185] [Citation(s) in RCA: 222] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The envelope glycoprotein of human immunodeficiency virus (HIV) consists of an exterior glycoprotein (gp120) and a trans-membrane domain (gp41) and has an important role in viral entry into cells. HIV-1 entry has been validated as a clinically relevant anti-viral strategy for drug discovery. In the present work, several 2'-F substituted RNA aptamers that bind to the HIV-1(BaL) gp120 protein with nanomole affinity were isolated from a RNA library by the SELEX (Systematic Evolution of Ligands by EXponential enrichment) procedure. From two of these aptamers we created a series of new dual inhibitory function anti-gp120 aptamer-siRNA chimeras. The aptamers and aptamer-siRNA chimeras specifically bind to and are internalized into cells expressing HIV gp160. The Dicer-substrate siRNA delivered by the aptamers is functionally processed by Dicer, resulting in specific inhibition of HIV-1 replication and infectivity in cultured CEM T-cells and primary blood mononuclear cells (PBMCs). Moreover, we have introduced a 'sticky' sequence onto a chemically synthesized aptamer which facilitates attachment of the Dicer substrate siRNAs for potential multiplexing. Our results provide a set of novel inhibitory agents for blocking HIV replication and further validate the use of aptamers for delivery of Dicer substrate siRNAs.
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Affiliation(s)
- Jiehua Zhou
- Division of Molecular Biology, Beckman Research Institute of City of Hope, City of Hope, Duarte, CA 91010, USA
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Yuan H, Lanting L, Xu ZG, Li SL, Swiderski P, Putta S, Jonnalagadda M, Kato M, Natarajan R. Effects of cholesterol-tagged small interfering RNAs targeting 12/15-lipoxygenase on parameters of diabetic nephropathy in a mouse model of type 1 diabetes. Am J Physiol Renal Physiol 2008; 295:F605-17. [PMID: 18562637 DOI: 10.1152/ajprenal.90268.2008] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
We previously showed that the 12/15-lipoxygenase (12/15-LO) pathway of arachidonate acid metabolism is involved in multiple events related to diabetic nephropathy (DN), including glomerular hypertrophy and extracellular matrix deposition (Kang SW, Adler SG, Nast CC, LaPage J, Gu JL, Nadler JL, Natarajan R. Kidney Int 59: 1354-1362, 2001; Kang SW, Natarajan R, Shahed A, Nast CC, LaPage J, Mundel P, Kashtan C, Adler SG. J Am Soc Nephrol 14: 3178-3187, 2003; Kim YS, Lanting L, Adler SG, Natarajan R. Kindney Int 64: 1702-1714, 2003; Reddy MA, Adler SG, Kim YS, Lanting L, Rossi JJ, Kang SW, Nadler JL, Shahed A, Natarajan R. Am J Physiol Renal Physiol 283: F985-F994, 2002). In this study, we investigated whether in vivo delivery of small interfering RNAs (siRNAs) targeting 12/15-LO can ameliorate renal injury and DN in a streptozotocin-injected mouse model of type 1 diabetes. To achieve greater in vivo access and siRNA expression in the kidney, we used double-stranded 12/15-LO siRNA oligonucleotides conjugated with cholesterol. Diabetic DBA/2J mice were injected subcutaneously with either cholesterol-tagged 12/15-LO siRNA, mismatched control siRNA, or vehicle alone, twice weekly for 7 wk. Relative to controls, mice that received 12/15-LO siRNA showed significant reduction in albuminuria, kidney-to-body weight ratios, glomerular mesangial matrix expansion, renal structural damage, and monocyte/macrophage infiltration. These effects were associated with lower renal cortical or glomerular levels of profibrotic markers transforming growth factor-beta, connective tissue growth factor, type I and type IV collagens, plasminogen activator inhibitor 1, and fibronectin. The diabetes-induced increase in glomerular cyclin-dependent kinase inhibitors that are associated with hypertrophy was also prevented by siRNA administration. Our results show for the first time that systemic delivery of cholesterol-tagged siRNAs targeting 12/15-LO has renoprotective effects under diabetic conditions and therefore could be a novel therapeutic approach for DN.
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Affiliation(s)
- Hang Yuan
- Department of Diabetes, Beckman Research Institute, City of Hope, Duarte, California, USA
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Liu Q, Swiderski P, Sommer SS. Truncated amplification: a method for high-fidelity template-driven nucleic acid amplification. Biotechniques 2002; 33:129-32, 134-6, 138. [PMID: 12139237 DOI: 10.2144/02331rr04] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The error rate of conventional PCR is problematic when amplifying from single cells or amplifying segments for protein functional analysis by in vitro translation. We describe truncated amplification, a method for high-fidelity amplification in which DNA polymerase errors are not propagated efficiently and original DNA templates exert greater influence on the amplification process. Truncated amplification utilizes pairs of oligonucleotides and thermal cycling, but it differs from PCR. Truncated amplification amplifies non-exponentially with one or two chimeric oligonucleotides and produces truncated terminal products that are no more than three rounds of replication from the original template. Exon 6 of the p53 gene was utilized as a model system to demonstrate proof of principle. Chimeric oligonucleotides containing three 3'-->5' reversed-deoxynucleotides or 2'-OMe-ribonucleotides at 6-8 nucleotides from the 3 'terminus retained sequence specificity and primer extension activity. With PfuTurbo but not with Taq or Vent (exo-) DNA polymerases, the modified nucleotides completely truncated the DNA polymerase elongation. The resulting truncated terminal products are not templates for further amplification because of the short length of the 3' complementary region. Truncated amplific ation can amplify quadratically or geometrically depending on whether two or one chimeric oligonucleotides are used. Truncated amplification is a promising approach when template-driven amplification is desired to increase thefrequency of error-free products.
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Affiliation(s)
- Qiang Liu
- City of Hope National Medical Center, Duarte, CA 91010-3000, USA
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Konopka K, Rossi JJ, Swiderski P, Slepushkin VA, Düzgüneş N. Delivery of an anti-HIV-1 ribozyme into HIV-infected cells via cationic liposomes. Biochim Biophys Acta 1998; 1372:55-68. [PMID: 9651480 DOI: 10.1016/s0005-2736(98)00046-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Cationic liposome-mediated intracellular delivery of a fluorescein-labeled chimeric DNA-RNA ribozyme targeted to the HIV-1 5' LTR was investigated, using THP-1, THP-1/HIV-1IIIB or HeLa/LAV cells. Different fluorescence patterns were observed when the cells were exposed to Lipofectamine, Lipofectin or DMRIE:DOPE (1:1) complexed to the ribozyme. With Lipofectamine intense cell-associated fluorescence was found. Incubation with Lipofectin resulted in less intense diffuse fluorescence, while with DMRIE an intense but sporadic fluorescence was observed. Differentiated THP-1/HIV-1IIIB cells were more susceptible to killing by liposome-ribozyme complexes than THP-1 cells. Under non-cytotoxic conditions (a 4-h treatment) complexes of 5, 10 or 15 microM Lipofectin or DOTAP:DOPE (1:1) and ribozyme, at lipid:ribozyme ratios of 8:1 or 4:1, did not affect p24 production in THP-1/HIV-1IIIB cells in spite of the intracellular accumulation of the ribozyme. A 24-h exposure of THP-1/HIV-1IIIB cells to 5 microM Lipofectin or DOTAP:DOPE (1:1) complexed with either the functional or a modified control ribozyme reduced virus production by approximately 30%. Thus, the antiviral effect of the liposome-complexed ribozyme was not sequence-specific. In contrast, the free ribozyme at a relatively high concentration inhibited virus production by 30%, while the control ribozyme was ineffective, indicating a sequence-specific effect. Both Lipofectin and DOTAP complexed with ribozyme were toxic at 10 and 15 microM after a 24-h treatment. A 4-h treatment of HeLa/LAV cells with Lipofectin at 5, 10 or 15 microM was not toxic to the cells, but also did not inhibit p24 production. In contrast, treatment of HeLa CD4+ cells immediately after infection with HIV-1IIIB at the same lipid concentrations and lipid:ribozyme ratios was cytotoxic. Our results indicate that the delivery of functional ribozyme into cells by cationic liposomes is an inefficient process and needs extensive improvement before it can be used in ex vivo and in vivo applications.
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Affiliation(s)
- K Konopka
- Department of Microbiology, School of Dentistry, University of the Pacific, San Francisco, CA 94115, USA
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Heidenreich O, Xu X, Swiderski P, Rossi JJ, Nerenberg M. Correlation of activity with stability of chemically modified ribozymes in nuclei suspension. Antisense Nucleic Acid Drug Dev 1996; 6:111-8. [PMID: 8843325 DOI: 10.1089/oli.1.1996.6.111] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
To examine hammerhead ribozyme activity in the nuclear environment, we have used nuclei isolated from HTLV-I tax transformed fibroblasts to evaluate ribozymes targeted against HTLV-I tax RNA. The ribozyme activity in nuclei suspension was strongly dependent on the resistance of the particular ribozyme to endogenous nucleases. A ribozyme containing exclusively 2'-deoxynucleotides in its stems cleaved target RNA by its catalytic activity in the absence of proteins and caused degradation in their presence by induction of nuclear RNase H activity. A ribozyme containing 2'-amino- and 2'-fluoropyrimidine nucleosides in combination with terminal phosphorothioate linkages was significantly more stable in nuclei suspension and also exhibited a more than threefold higher cleavage efficacy than its unmodified counterpart. The increased resistance against nuclease degradation is mainly due to terminal phosphorothioate linkages, suggesting that both 5' and 3'-exonucleases are primarily responsible for the nuclear degradation of oligonucleotides.
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Affiliation(s)
- O Heidenreich
- Scripps Research Institute, Department of Molecular and Experimental Medicine, La Jolla, CA 92037, USA
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Heidenreich O, Kang SH, Brown DA, Xu X, Swiderski P, Rossi JJ, Eckstein F, Nerenberg M. Ribozyme-mediated RNA degradation in nuclei suspension. Nucleic Acids Res 1995; 23:2223-8. [PMID: 7610051 PMCID: PMC307011 DOI: 10.1093/nar/23.12.2223] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Ribozymes containing 2'-fluoro- and 2'-amino-modified pyrimidine nucleosides in combination with terminal phosphorothioate linkages were targeted against HTLV-I tax RNA. In order to examine the activity of such chemically modified ribozymes in the nuclear environment, they were incubated with nuclei of a Tax-transformed mouse fibroblast cell line. Ribozyme cleavage of tax RNA was analyzed by the RNase protection assay. Comparison of the cleavage of tax RNA isolated nuclei with that of tax RNA present in nuclei suspension revealed a 30 times more efficient cleavage of the latter one. Pre-treatment with proteinase K and SDS abolished the enhancement of the ribozyme-mediated RNA cleavage. Catalytically inactive ribozymes did not yield any cleavage products. These results demonstrate an augmenting effect of nuclear proteins on the ribozyme-mediated RNA cleavage.
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Affiliation(s)
- O Heidenreich
- Scripps Research Institute, Department of Neuropharmacology, La Jolla, CA 92037, USA
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Snyder DS, Wu Y, Wang JL, Rossi JJ, Swiderski P, Kaplan BE, Forman SJ. Ribozyme-mediated inhibition of bcr-abl gene expression in a Philadelphia chromosome-positive cell line. Blood 1993; 82:600-5. [PMID: 8329715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The bcr-abl fusion gene is the molecular counterpart of the Philadelphia chromosome (Ph1) and is directly involved in the pathogenesis of Ph1+ leukemia. Inhibition of bcr-abl gene expression may have profound effects on the cell biology of Ph1+ cells, as recent experiments with antisense oligonucleotides have shown. In this study we have designed and synthesized a unique ribozyme that is directed against bcr-abl mRNA. The ribozyme cleaved bcr-abl mRNA in a cell-free in vitro system. A DNA-RNA hybrid ribozyme was then incorporated into a liposome vector and transfected into EM-2 cells, a cell line derived from a patient with blast crisis of chronic myelogenous leukemia. The ribozyme decreased levels of detectable bcr-abl mRNA in these cells, inhibited expression of the bcr-abl gene product, p210bcr-abl, and inhibited cell growth. This anti-bcr-abl ribozyme may be a useful tool to study the cell biology of Ph1+ leukemia and may ultimately have therapeutic potential in treating patients with Ph1 leukemias.
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MESH Headings
- Base Sequence
- Blast Crisis
- Cell Division
- Fusion Proteins, bcr-abl/genetics
- Gene Expression
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Magnesium/pharmacology
- Molecular Sequence Data
- RNA, Catalytic/genetics
- RNA, Catalytic/metabolism
- RNA, Messenger/chemistry
- RNA, Messenger/metabolism
- Ribonucleases/metabolism
- Transfection
- Tumor Cells, Cultured
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Affiliation(s)
- D S Snyder
- Department of Hematology and Bone Marrow Transplantation, City of Hope National Medical Center, Duarte, CA 91010-0269
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Taylor NR, Kaplan BE, Swiderski P, Li H, Rossi JJ. Chimeric DNA-RNA hammerhead ribozymes have enhanced in vitro catalytic efficiency and increased stability in vivo. Nucleic Acids Res 1992; 20:4559-65. [PMID: 1408757 PMCID: PMC334185 DOI: 10.1093/nar/20.17.4559] [Citation(s) in RCA: 94] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Subsequent to the discovery that RNA can have site specific cleavage activity, there has been a great deal of interest in the design and testing of trans-acting catalytic RNAs as both surrogate genetic tools and as therapeutic agents. We have been developing catalytic RNAs or ribozymes with target specificity for HIV-1 RNA and have been exploring chemical synthesis as one method for their production. To this end, we have chemically synthesized and experimentally analyzed chimeric catalysts consisting of DNA in the non-enzymatic portions, and RNA in the enzymatic core of hammerhead type ribozymes. Substitutions of DNA for RNA in the various stems of a hammerhead ribozyme have been analyzed in vitro for kinetic efficiency. One of the chimeric ribozymes used in this study, which harbors 24 bases of DNA capable of base-pairing interactions with an HIV-1 gag target, but maintains RNA in the catalytic center and in stem-loop II, has a sixfold greater kcat value than the all RNA counterpart. This increased activity appears to be the direct result of enhanced product dissociation. Interestingly, a chimeric ribozyme in which stem-loop II (which divides the catalytic core) is comprised of DNA, exhibited a marked reduction in cleavage activity, suggesting that DNA in this region of the ribozyme can impart a negative effect on the catalytic function of the ribozyme. DNA-RNA chimeric ribozymes transfected by cationic liposomes into human T-lymphocytes are more stable than their all-RNA counterparts. Enhanced catalytic turnover and stability in the absence of a significant effect on Km make chimeric ribozymes favorable candidates for therapeutic agents.
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Affiliation(s)
- N R Taylor
- Department of Molecular Genetics, Beckman Research Institute of the City of Hope, Duarte, CA 91010
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Jankowski J, Liniecki J, Swiderski P, Głombiński J. [Approximate evaluation of the vital dose in persons occupationally exposed to roentgen radiation]. Pol Przegl Radiol 1985; 49:85-92. [PMID: 3913932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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