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Hajiabadi S, Alidadi S, Montakhab Farahi Z, Ghahramani Seno MM, Farzin H, Haghparast A. Immunotherapy with STING and TLR9 agonists promotes synergistic therapeutic efficacy with suppressed cancer-associated fibroblasts in colon carcinoma. Front Immunol 2023; 14:1258691. [PMID: 37901237 PMCID: PMC10611477 DOI: 10.3389/fimmu.2023.1258691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 09/06/2023] [Indexed: 10/31/2023] Open
Abstract
The innate immune sensing of nucleic acids using effective immunoadjuvants is critical for increasing protective immune responses against cancer. Stimulators of interferon genes (STING) and toll-like receptor 9 (TLR9) agonists are considered promising candidates in several preclinical tumor models with the potential to be used in clinical settings. However, the effects of such treatment on tumor stroma are currently unknown. In this study, we investigated the immunotherapeutic effects of ADU-S100 as a STING agonist and CpG ODN1826 as a TLR9 agonist in a preclinical model of colon carcinoma. Tumor-bearing mice were treated intratumorally on days 10 and 16 post-tumor inoculation with ADU-S100 and CpG ODN1826. Cytokine profiles in the tumor and spleen, tumor cell apoptosis, the infiltration of immune cells, and cancer-associated fibroblasts (CAFs) in the tumor microenvironment (TME) were evaluated to identify the immunological mechanisms after treatment. The powerful antitumor activity of single and combination treatments, the upregulation of the expression of pro-inflammatory cytokines in the tumor and spleen, and the recruitment and infiltration of the TME by immune cells revealed the synergism of immunoadjuvants in the eradication of the colon carcinoma model. Remarkably, the significant downregulation of CAFs in the TME indicated that suppression of tumorigenesis occurred after immunoadjuvant therapy. The results illustrate the potential of targeting the STING and TLR9 pathways as powerful immunoadjuvants in the treatment of preclinical colon carcinoma and the possibility of harnessing these pathways in future therapeutic approaches.
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Affiliation(s)
- Sare Hajiabadi
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Soodeh Alidadi
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Zohreh Montakhab Farahi
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | | | - Hamidreza Farzin
- Razi Vaccine and Serum Research Institute, Agriculture Research, Education and Extension Organization (AREEO), Mashhad, Iran
| | - Alireza Haghparast
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
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2
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Zhao J, Dong Y, Zhang Y, Wang J, Wang Z. Biophysical heterogeneity of myeloid-derived microenvironment to regulate resistance to cancer immunotherapy. Adv Drug Deliv Rev 2022; 191:114585. [PMID: 36273512 DOI: 10.1016/j.addr.2022.114585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 09/25/2022] [Accepted: 10/12/2022] [Indexed: 01/24/2023]
Abstract
Despite the advances in immunotherapy for cancer treatment, patients still obtain limited benefits, mostly owing to unrestrained tumour self-expansion and immune evasion that exploits immunoregulatory mechanisms. Traditionally, myeloid cells have a dominantly immunosuppressive role. However, the complicated populations of the myeloid cells and their multilateral interactions with tumour/stromal/lymphoid cells and physical abnormalities in the tumour microenvironment (TME) determine their heterogeneous functions in tumour development and immune response. Tumour-associated myeloid cells (TAMCs) include monocytes, tumour-associated macrophages (TAMs), myeloid-derived suppressor cells (MDSCs), dendritic cells (DCs), and granulocytes. Single-cell profiling revealed heterogeneous TAMCs composition, sub-types, and transcriptomic signatures across 15 human cancer types. We systematically reviewed the biophysical heterogeneity of TAMC composition and pro/anti-tumoral and immuno-suppressive/stimulating properties of myeloid-derived microenvironments. We also summarised comprehensive clinical strategies to overcome resistance to immunotherapy from three dimensions: targeting TAMCs, reversing physical abnormalities, utilising nanomedicines, and finally, put forward futuristic perspectives for scientific and clinical research.
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Affiliation(s)
- Jie Zhao
- State Key Laboratory of Molecular Oncology, Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - Yiting Dong
- State Key Laboratory of Molecular Oncology, Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - Yundi Zhang
- State Key Laboratory of Molecular Oncology, Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
| | - Jie Wang
- State Key Laboratory of Molecular Oncology, Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China.
| | - Zhijie Wang
- State Key Laboratory of Molecular Oncology, Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China.
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3
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Overcoming challenges to enable targeting of metastatic breast cancer tumour microenvironment with nano-therapeutics: Current status and future perspectives. OPENNANO 2022. [DOI: 10.1016/j.onano.2022.100083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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4
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Andón FT, Leon S, Ummarino A, Redin E, Allavena P, Serrano D, Anfray C, Calvo A. Innate and Adaptive Responses of Intratumoral Immunotherapy with Endosomal Toll-Like Receptor Agonists. Biomedicines 2022; 10:biomedicines10071590. [PMID: 35884895 PMCID: PMC9313389 DOI: 10.3390/biomedicines10071590] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/15/2022] [Accepted: 06/29/2022] [Indexed: 11/16/2022] Open
Abstract
Toll-like receptors (TLRs) are natural initial triggers of innate and adaptive immune responses. With the advent of cancer immunotherapy, nucleic acids engineered as ligands of endosomal TLRs have been investigated for the treatment of solid tumors. Despite promising results, their systemic administration, similarly to other immunotherapies, raises safety issues. To overcome these problems, recent studies have applied the direct injection of endosomal TLR agonists in the tumor and/or draining lymph nodes, achieving high local drug exposure and strong antitumor response. Importantly, intratumoral delivery of TLR agonists showed powerful effects not only against the injected tumors but also often against uninjected lesions (abscopal effects), resulting in some cases in cure and antitumoral immunological memory. Herein, we describe the structure and function of TLRs and their role in the tumor microenvironment. Then, we provide our vision on the potential of intratumor versus systemic delivery or vaccination approaches using TLR agonists, also considering the use of nanoparticles to improve their targeting properties. Finally, we collect the preclinical and clinical studies applying intratumoral injection of TLR agonists as monotherapies or in combination with: (a) other TLR or STING agonists; (b) other immunotherapies; (c) radiotherapy or chemotherapy; (d) targeted therapies.
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Affiliation(s)
- Fernando Torres Andón
- Center for Research in Molecular Medicine and Chronic Diseases, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain;
- IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy;
| | - Sergio Leon
- Program in Solid Tumors, Center for Applied Medical Research (CIMA), Department of Pathology and Histology, University of Navarra, 31008 Pamplona, Spain; (S.L.); (E.R.); (D.S.)
| | - Aldo Ummarino
- Laboratory of Cellular Immunology, Humanitas University, 20089 Pieve Emanuele, Italy; (A.U.); (C.A.)
| | - Esther Redin
- Program in Solid Tumors, Center for Applied Medical Research (CIMA), Department of Pathology and Histology, University of Navarra, 31008 Pamplona, Spain; (S.L.); (E.R.); (D.S.)
- Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Avenida Monforte de Lemos, 3-5, 28029 Madrid, Spain
- Navarra Institute for Health Research (IdiSNA), C/Irunlarrea 3, 31008 Pamplona, Spain
| | - Paola Allavena
- IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy;
- Laboratory of Cellular Immunology, Humanitas University, 20089 Pieve Emanuele, Italy; (A.U.); (C.A.)
| | - Diego Serrano
- Program in Solid Tumors, Center for Applied Medical Research (CIMA), Department of Pathology and Histology, University of Navarra, 31008 Pamplona, Spain; (S.L.); (E.R.); (D.S.)
- Navarra Institute for Health Research (IdiSNA), C/Irunlarrea 3, 31008 Pamplona, Spain
| | - Clément Anfray
- Laboratory of Cellular Immunology, Humanitas University, 20089 Pieve Emanuele, Italy; (A.U.); (C.A.)
| | - Alfonso Calvo
- Program in Solid Tumors, Center for Applied Medical Research (CIMA), Department of Pathology and Histology, University of Navarra, 31008 Pamplona, Spain; (S.L.); (E.R.); (D.S.)
- Centro de Investigación Biomédica en Red Cáncer (CIBERONC), Avenida Monforte de Lemos, 3-5, 28029 Madrid, Spain
- Navarra Institute for Health Research (IdiSNA), C/Irunlarrea 3, 31008 Pamplona, Spain
- Correspondence: ; Tel.: +34-948-194700
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5
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Raju GSR, Pavitra E, Varaprasad GL, Bandaru SS, Nagaraju GP, Farran B, Huh YS, Han YK. Nanoparticles mediated tumor microenvironment modulation: current advances and applications. J Nanobiotechnology 2022; 20:274. [PMID: 35701781 PMCID: PMC9195263 DOI: 10.1186/s12951-022-01476-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 05/23/2022] [Indexed: 12/20/2022] Open
Abstract
The tumor microenvironment (TME) plays a key role in cancer development and emergence of drug resistance. TME modulation has recently garnered attention as a potential approach for reprogramming the TME and resensitizing resistant neoplastic niches to existing cancer therapies such as immunotherapy or chemotherapy. Nano-based solutions have important advantages over traditional platform and can be specifically targeted and delivered to desired sites. This review explores novel nano-based approaches aimed at targeting and reprogramming aberrant TME components such as macrophages, fibroblasts, tumor vasculature, hypoxia and ROS pathways. We also discuss how nanoplatforms can be combined with existing anti-tumor regimens such as radiotherapy, immunotherapy, phototherapy or chemotherapy to enhance clinical outcomes in solid tumors.
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Affiliation(s)
- Ganji Seeta Rama Raju
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea
| | - Eluri Pavitra
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, Incheon, 22212, Republic of Korea
| | - Ganji Lakshmi Varaprasad
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, Incheon, 22212, Republic of Korea
| | | | | | - Batoul Farran
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, 30322, USA.
| | - Yun Suk Huh
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, Incheon, 22212, Republic of Korea.
| | - Young-Kyu Han
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea.
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6
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Huang L, Ge X, Liu Y, Li H, Zhang Z. The Role of Toll-like Receptor Agonists and Their Nanomedicines for Tumor Immunotherapy. Pharmaceutics 2022; 14:pharmaceutics14061228. [PMID: 35745800 PMCID: PMC9230510 DOI: 10.3390/pharmaceutics14061228] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/20/2022] [Accepted: 06/07/2022] [Indexed: 01/11/2023] Open
Abstract
Toll-like receptors (TLRs) are a class of pattern recognition receptors that play a critical role in innate and adaptive immunity. Toll-like receptor agonists (TLRa) as vaccine adjuvant candidates have become one of the recent research hotspots in the cancer immunomodulatory field. Nevertheless, numerous current systemic deliveries of TLRa are inappropriate for clinical adoption due to their low efficiency and systemic adverse reactions. TLRa-loaded nanoparticles are capable of ameliorating the risk of immune-related toxicity and of strengthening tumor suppression and eradication. Herein, we first briefly depict the patterns of TLRa, followed by the mechanism of agonists at those targets. Second, we summarize the emerging applications of TLRa-loaded nanomedicines as state-of-the-art strategies to advance cancer immunotherapy. Additionally, we outline perspectives related to the development of nanomedicine-based TLRa combined with other therapeutic modalities for malignancies immunotherapy.
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Affiliation(s)
| | | | | | - Hui Li
- Correspondence: (H.L.); (Z.Z.)
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7
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Advancement of cancer immunotherapy using nanoparticles-based nanomedicine. Semin Cancer Biol 2022; 86:624-644. [DOI: 10.1016/j.semcancer.2022.03.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 03/17/2022] [Accepted: 03/30/2022] [Indexed: 12/16/2022]
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8
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Varshney D, Qiu SY, Graf TP, McHugh KJ. Employing Drug Delivery Strategies to Overcome Challenges Using TLR7/8 Agonists for Cancer Immunotherapy. AAPS JOURNAL 2021; 23:90. [PMID: 34181117 DOI: 10.1208/s12248-021-00620-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 06/04/2021] [Indexed: 12/11/2022]
Abstract
Toll-like receptors (TLRs) are a potential target for cancer immunotherapy due to their role in the activation of the innate immune system. More specifically, TLR7 and TLR8, two structurally similar pattern recognition receptors that trigger interferon and cytokine responses, have proven to be therapeutically relevant targets for cancer in numerous preclinical and clinical studies. When triggered by an agonist, such as imiquimod or resiquimod, the TLR7/8 activation pathway induces cellular and humoral immune responses that can kill cancer cells with high specificity. Unfortunately, TLR7/8 agonists also present a number of issues that must be overcome prior to broad clinical implementation, such as poor drug solubility and systemic toxic effects. To overcome the key limitations of TLR7/8 agonists as a cancer therapy, biomaterial-based drug delivery systems have been developed. These delivery devices are highly diverse in their design and include systems that can be directly administered to the tumor, passively accumulated in relevant cancerous and lymph tissues, triggered by environmental stimuli, or actively targeted to specific physiological areas and cellular populations. In addition to improved delivery systems, recent studies have also demonstrated the potential benefits of TLR7/8 agonist co-delivery with other types of therapies, particularly checkpoint inhibitors, cancer vaccines, and chemotherapeutics, which can yield impressive anti-cancer effects. In this review, we discuss recent advances in the development of TLR7/8 agonist delivery systems and provide perspective on promising future directions.
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Affiliation(s)
- Dhruv Varshney
- Department of Bioengineering, Rice University, 6100 Main Street, Houston, Texas, 77005, USA.,David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts, 02139, USA
| | - Sherry Yue Qiu
- Department of Bioengineering, Rice University, 6100 Main Street, Houston, Texas, 77005, USA
| | - Tyler P Graf
- Department of Bioengineering, Rice University, 6100 Main Street, Houston, Texas, 77005, USA
| | - Kevin J McHugh
- Department of Bioengineering, Rice University, 6100 Main Street, Houston, Texas, 77005, USA.
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9
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Venkatas J, Singh M. Nanomedicine-mediated optimization of immunotherapeutic approaches in cervical cancer. Nanomedicine (Lond) 2021; 16:1311-1328. [PMID: 34027672 DOI: 10.2217/nnm-2021-0044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Cervical cancer shows immense complexity at the epigenetic, genetic and cellular levels, limiting conventional treatment. Immunotherapy has revolutionized nanomedicine and rejuvenated the field of tumor immunology. Although several immunotherapeutic approaches have shown favorable clinical responses, their efficacies vary, with subsets of patients benefitting. The success of cancer immunotherapy requires the enhancement of cytokines and antitumor effector cell production and activation. Recently, the feasibility of nanoparticle-based cytokine approaches in tumor immunotherapy has been highlighted. Immunotherapeutic nanoparticle-based platforms form a novel strategy enabling researchers to co-deliver immunomodulatory agents, target tumors, improve pharmacokinetics and minimize collateral toxicity to healthy cells. This review looks at the potential of immunotherapy and nanotechnologically enhanced immunotherapeutic approaches for cervical cancer.
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Affiliation(s)
- Jeaneen Venkatas
- Nano-Gene & Drug Delivery Group, Discipline of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, 4000, KwaZulu-Natal, South Africa
| | - Moganavelli Singh
- Nano-Gene & Drug Delivery Group, Discipline of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, 4000, KwaZulu-Natal, South Africa
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10
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Yang M, Li J, Gu P, Fan X. The application of nanoparticles in cancer immunotherapy: Targeting tumor microenvironment. Bioact Mater 2020; 6:1973-1987. [PMID: 33426371 PMCID: PMC7773537 DOI: 10.1016/j.bioactmat.2020.12.010] [Citation(s) in RCA: 310] [Impact Index Per Article: 77.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 12/04/2020] [Accepted: 12/14/2020] [Indexed: 12/12/2022] Open
Abstract
The tumor development and metastasis are closely related to the structure and function of the tumor microenvironment (TME). Recently, TME modulation strategies have attracted much attention in cancer immunotherapy. Despite the preliminary success of immunotherapeutic agents, their therapeutic effects have been restricted by the limited retention time of drugs in TME. Compared with traditional delivery systems, nanoparticles with unique physical properties and elaborate design can efficiently penetrate TME and specifically deliver to the major components in TME. In this review, we briefly introduce the substitutes of TME including dendritic cells, macrophages, fibroblasts, tumor vasculature, tumor-draining lymph nodes and hypoxic state, then review various nanoparticles targeting these components and their applications in tumor therapy. In addition, nanoparticles could be combined with other therapies, including chemotherapy, radiotherapy, and photodynamic therapy, however, the nanoplatform delivery system may not be effective in all types of tumors due to the heterogeneity of different tumors and individuals. The changes of TME at various stages during tumor development are required to be further elucidated so that more individualized nanoplatforms could be designed.
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Key Words
- AC-NPs, antigen-capturing nanoparticles
- ANG2, angiopoietin-2
- APCs, antigen-presenting cells
- Ab, antibodies
- Ag, antigen
- AuNCs, gold nanocages
- AuNPs, gold nanoparticles
- BBB, blood-brain barrier
- BTK, Bruton's tyrosine kinase
- Bcl-2, B-cell lymphoma 2
- CAFs, cancer associated fibroblasts
- CAP, cleavable amphiphilic peptide
- CAR-T, Chimeric antigen receptor-modified T-cell therapy
- CCL, chemoattractant chemokines ligand
- CTL, cytotoxic T lymphocytes
- CTLA4, cytotoxic lymphocyte antigen 4
- CaCO3, calcium carbonate
- Cancer immunotherapy
- DCs, dendritic cells
- DMMA, 2,3-dimethylmaleic anhydrid
- DMXAA, 5,6-dimethylxanthenone-4-acetic acid
- DSF/Cu, disulfiram/copper
- ECM, extracellular matrix
- EGFR, epidermal growth factor receptor
- EMT, epithelial-mesenchymal transition
- EPG, egg phosphatidylglycerol
- EPR, enhanced permeability and retention
- FAP, fibroblast activation protein
- FDA, the Food and Drug Administration
- HA, hyaluronic acid
- HB-GFs, heparin-binding growth factors
- HIF, hypoxia-inducible factor
- HPMA, N-(2-hydroxypropyl) methacrylamide
- HSA, human serum albumin
- Hypoxia
- IBR, Ibrutinib
- IFN-γ, interferon-γ
- IFP, interstitial fluid pressure
- IL, interleukin
- LMWH, low molecular weight heparin
- LPS, lipopolysaccharide
- M2NP, M2-like TAM dual-targeting nanoparticle
- MCMC, mannosylated carboxymethyl chitosan
- MDSCs, myeloid-derived suppressor cells
- MPs, microparticles
- MnO2, manganese dioxide
- NF-κB, nuclear factor κB
- NK, nature killer
- NO, nitric oxide
- NPs, nanoparticles
- Nanoparticles
- ODN, oligodeoxynucleotides
- PD-1, programmed cell death protein 1
- PDT, photodynamic therapy
- PFC, perfluorocarbon
- PHDs, prolyl hydroxylases
- PLGA, poly(lactic-co-glycolic acid)
- PS, photosensitizer
- PSCs, pancreatic stellate cells
- PTX, paclitaxel
- RBC, red-blood-cell
- RLX, relaxin-2
- ROS, reactive oxygen species
- SA, sialic acid
- SPARC, secreted protein acidic and rich in cysteine
- TAAs, tumor-associated antigens
- TAMs, tumor-associated macrophages
- TDPA, tumor-derived protein antigens
- TGF-β, transforming growth factor β
- TIE2, tyrosine kinase with immunoglobulin and epidermal growth factor homology domain 2
- TIM-3, T cell immunoglobulin domain and mucin domain-3
- TLR, Toll-like receptor
- TME, tumor microenvironment
- TNF-α, tumor necrosis factor alpha
- TfR, transferrin receptor
- Tregs, regulatory T cells
- Tumor microenvironment
- UPS-NP, ultra-pH-sensitive nanoparticle
- VDA, vasculature disrupting agent
- VEGF, vascular endothelial growth factor
- cDCs, conventional dendritic cells
- melittin-NP, melittin-lipid nanoparticle
- nMOFs, nanoscale metal-organic frameworks
- scFv, single-chain variable fragment
- siRNA, small interfering RNA
- tdLNs, tumor-draining lymph nodes
- α-SMA, alpha-smooth muscle actin
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Wibowo D, Jorritsma SHT, Gonzaga ZJ, Evert B, Chen S, Rehm BHA. Polymeric nanoparticle vaccines to combat emerging and pandemic threats. Biomaterials 2020; 268:120597. [PMID: 33360074 PMCID: PMC7834201 DOI: 10.1016/j.biomaterials.2020.120597] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 11/30/2020] [Accepted: 12/06/2020] [Indexed: 02/07/2023]
Abstract
Subunit vaccines are more advantageous than live attenuated vaccines in terms of safety and scale-up manufacture. However, this often comes as a trade-off to their efficacy. Over the years, polymeric nanoparticles have been developed to improve vaccine potency, by engineering their physicochemical properties to incorporate multiple immunological cues to mimic pathogenic microbes and viruses. This review covers recent advances in polymeric nanostructures developed toward particulate vaccines. It focuses on the impact of microbe mimicry (e.g. size, charge, hydrophobicity, and surface chemistry) on modulation of the nanoparticles’ delivery, trafficking, and targeting antigen-presenting cells to elicit potent humoral and cellular immune responses. This review also provides up-to-date progresses on rational designs of a wide variety of polymeric nanostructures that are loaded with antigens and immunostimulatory molecules, ranging from particles, micelles, nanogels, and polymersomes to advanced core-shell structures where polymeric particles are coated with lipids, cell membranes, or proteins.
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Affiliation(s)
- David Wibowo
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, Nathan QLD, 4111, Australia.
| | - Sytze H T Jorritsma
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, Nathan QLD, 4111, Australia
| | - Zennia Jean Gonzaga
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, Nathan QLD, 4111, Australia
| | - Benjamin Evert
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, Nathan QLD, 4111, Australia
| | - Shuxiong Chen
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, Nathan QLD, 4111, Australia
| | - Bernd H A Rehm
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, Nathan QLD, 4111, Australia.
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Seth A, Derami HG, Gupta P, Wang Z, Rathi P, Gupta R, Cao T, Morrissey JJ, Singamaneni S. Polydopamine-Mesoporous Silica Core-Shell Nanoparticles for Combined Photothermal Immunotherapy. ACS APPLIED MATERIALS & INTERFACES 2020; 12:42499-42510. [PMID: 32838525 PMCID: PMC7942218 DOI: 10.1021/acsami.0c10781] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Cancer immunotherapy involves a cascade of events that ultimately leads to cytotoxic immune cells effectively identifying and destroying cancer cells. Responsive nanomaterials, which enable spatiotemporal orchestration of various immunological events for mounting a highly potent and long-lasting antitumor immune response, are an attractive platform to overcome challenges associated with existing cancer immunotherapies. Here, we report a multifunctional near-infrared (NIR)-responsive core-shell nanoparticle, which enables (i) photothermal ablation of cancer cells for generating tumor-associated antigen (TAA) and (ii) triggered release of an immunomodulatory drug (gardiquimod) for starting a series of immunological events. The core of these nanostructures is composed of a polydopamine nanoparticle, which serves as a photothermal agent, and the shell is made of mesoporous silica, which serves as a drug carrier. We employed a phase-change material as a gatekeeper to achieve concurrent release of both TAA and adjuvant, thus efficiently activating the antigen-presenting cells. Photothermal immunotherapy enabled by these nanostructures resulted in regression of primary tumor and significantly improved inhibition of secondary tumor in a mouse melanoma model. These biocompatible, biodegradable, and NIR-responsive core-shell nanostructures simultaneously deliver payload and cause photothermal ablation of the cancer cells. Our results demonstrate potential of responsive nanomaterials in generating highly synergistic photothermal immunotherapeutic response.
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Affiliation(s)
- Anushree Seth
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, Saint Louis, MO 63130, USA
| | - Hamed Gholami Derami
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, Saint Louis, MO 63130, USA
| | - Prashant Gupta
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, Saint Louis, MO 63130, USA
| | - Zheyu Wang
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, Saint Louis, MO 63130, USA
| | - Priya Rathi
- Department of Chemistry, Washington University in St. Louis, Saint Louis, MO 63130, USA
| | - Rohit Gupta
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, Saint Louis, MO 63130, USA
| | - Thao Cao
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Jeremiah J. Morrissey
- Department of Anesthesiology, Siteman Cancer Center, Washington University in St. Louis, St. Louis, MO, 63110, USA
| | - Srikanth Singamaneni
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, Saint Louis, MO 63130, USA
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13
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Huang CH, Mendez N, Echeagaray OH, Weeks J, Wang J, Yao S, Blair SL, Gude N, Trogler WC, Carson DA, Hayashi T, Kummel AC. Immunostimulatory TLR7 agonist-nanoparticles together with checkpoint blockade for effective cancer immunotherapy. ADVANCED THERAPEUTICS 2020; 3:1900200. [PMID: 33644299 PMCID: PMC7904104 DOI: 10.1002/adtp.201900200] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Indexed: 01/04/2023]
Abstract
Mono- or dual-checkpoint inhibitors for immunotherapy have changed the paradigm of cancer care; however, only a minority of patients responds to such treatment. Combining small molecule immuno-stimulators can improve treatment efficacy, but they are restricted by poor pharmacokinetics. In this study, TLR7 agonists conjugated onto silica nanoparticles showed extended drug localization after intratumoral injection. The nanoparticle-based TLR7 agonist increased immune stimulation by activating the TLR7 signaling pathway. When treating CT26 colon cancer, nanoparticle conjugated TLR7 agonists increased T cell infiltration into the tumors by > 4× and upregulated expression of the interferon γ gene compared to its unconjugated counterpart by ~2×. Toxicity assays established that the conjugated TLR7 agonist is a safe agent at the effective dose. When combined with checkpoint inhibitors that target programmed cell death protein 1 (PD-1) and cytotoxic T-lymphocyte-associated protein 4 (CTLA-4), a 10-100× increase in immune cell migration was observed; furthermore, 100 mm3 tumors were treated and a 60% remission rate was observed including remission at contralateral non-injected tumors. The data show that nanoparticle based TLR7 agonists are safe and can potentiate the effectiveness of checkpoint inhibitors in immunotherapy resistant tumor models and promote a long-term specific memory immune function.
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Affiliation(s)
- Ching-Hsin Huang
- Department of Chemistry & Department of Medicine; University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0358, United States
| | - Natalie Mendez
- Department of Chemistry & Department of Medicine; University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0358, United States
| | - Oscar Hernandez Echeagaray
- Molecular Biology Institute, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, United States
| | - Joi Weeks
- Molecular Biology Institute, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, United States
| | - James Wang
- Department of Chemistry & Department of Medicine; University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0358, United States
| | - Shiyin Yao
- Moores Cancer Center, University of California, 9500 Gilman Drive, La Jolla, CA, 92093-0809, United States
| | - Sarah L. Blair
- Moores Cancer Center, University of California, 9500 Gilman Drive, La Jolla, CA, 92093-0809, United States
| | - Natalie Gude
- Molecular Biology Institute, San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, United States
| | - William C. Trogler
- Department of Chemistry & Department of Medicine; University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0358, United States
| | - Dennis A. Carson
- Moores Cancer Center, University of California, 9500 Gilman Drive, La Jolla, CA, 92093-0809, United States
| | - Tomoko Hayashi
- Moores Cancer Center, University of California, 9500 Gilman Drive, La Jolla, CA, 92093-0809, United States
| | - Andrew C. Kummel
- Department of Chemistry & Department of Medicine; University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0358, United States
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14
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Daei Farshchi Adli A, Jahanban-Esfahlan R, Seidi K, Farajzadeh D, Behzadi R, Zarghami N. Co-Administration of Vadimezan and Recombinant Coagulase-NGR Inhibits Growth of Melanoma Tumor in Mice. Adv Pharm Bull 2020; 11:385-392. [PMID: 33880362 PMCID: PMC8046391 DOI: 10.34172/apb.2021.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 03/01/2020] [Accepted: 04/15/2020] [Indexed: 12/15/2022] Open
Abstract
Purpose: Tumor vascular targeting appeared as an appealing approach to fight cancer, though, the results from the clinical trials and drugs in the market were proved otherwise. The promise of anti-angiogenic therapy as the leading tumor vascular targeting strategy was negatively affected with the discovery that tumor vascularization can occur non-angiogenic mechanisms such as co-option. An additional strategy is induction of tumor vascular infarction and ischemia. Methods: Such that we used truncated coagulase (tCoa) coupled to tumor endothelial targeting moieties to produce tCoa-NGR fusion proteins. We showed that tCoa-NGR can bypass coagulation cascade to induce selective vascular thrombosis and infarction of mild and highly proliferative solid tumors in mice. Moreover, combination therapy can be used to improve the potential of cancer vascular targeting modalities. Herein, we report combination of tCoa-NGR with vascular disrupting agent (VDA), vadimezan. Results: Our results show that synergistic work of these two agents can significantly suppress growth of B16-F10 melanoma tumors in C57/BL6 mice. Conclusion: For the first time, we used the simultaneous benefits of two strategies for inducing thrombosis and destruction of tumor vasculature as spatial co-operation. The tCoa-NGR induce thrombosis which reduces blood flow in the peripheral tumor region. And combined with the action of DMXAA, which target inner tumor mass, growth and proliferation of melanoma tumors can be significantly suppressed.
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Affiliation(s)
- Amir Daei Farshchi Adli
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Rana Jahanban-Esfahlan
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Khaled Seidi
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Davoud Farajzadeh
- Department of Cellular and Molecular Biology, Faculty of Biological Sciences, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Ramezan Behzadi
- North Research Center, Pasture Institute of Iran, Tehran, Amol, Iran
| | - Nosratollah Zarghami
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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15
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Hao Y, Zhou X, Li R, Song Z, Min Y. Advances of functional nanomaterials for cancer immunotherapeutic applications. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2019; 12:e1574. [PMID: 31566896 DOI: 10.1002/wnan.1574] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 06/04/2019] [Accepted: 06/19/2019] [Indexed: 12/11/2022]
Abstract
Immunotherapy has made great progress by modulating the body's own immune system to fight against cancer cells. However, the low response rates of related drugs limit the development of immunotherapy strategies. Fortunately, the advantages of nanotechnology can just make up for this shortcoming. Nanocarriers of diverse systems are utilized to co-deliver antigens and adjuvants, combined with drugs for immunomodulatory, such as chemotherapy, radiotherapy, and photodynamic. Here we review recent studies on immunotherapy with biomimetic, organic, and inorganic nanomaterials. They are going to potentially overcome the drawbacks in cancer immunotherapy with delivering immunomodulatory drugs, delivering cancer vaccine, and monitoring the immune systems. This article is characterized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease.
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Affiliation(s)
- Yuhao Hao
- CAS Key Lab of Soft Matter Chemistry, University of Science and Technology of China, Hefei, China.,Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Xingyu Zhou
- CAS Key Lab of Soft Matter Chemistry, University of Science and Technology of China, Hefei, China.,Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Rui Li
- CAS Key Lab of Soft Matter Chemistry, University of Science and Technology of China, Hefei, China.,Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Zechenxi Song
- CAS Key Lab of Soft Matter Chemistry, University of Science and Technology of China, Hefei, China.,Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Yuanzeng Min
- CAS Key Lab of Soft Matter Chemistry, University of Science and Technology of China, Hefei, China.,Department of Chemistry, University of Science and Technology of China, Hefei, China.,Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, Hefei, China
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16
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Comberlato A, Paloja K, Bastings MMC. Nucleic acids presenting polymer nanomaterials as vaccine adjuvants. J Mater Chem B 2019; 7:6321-6346. [PMID: 31460563 DOI: 10.1039/c9tb01222b] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Most vaccines developed today include only the antigens that best stimulate the immune system rather than the entire virus or microbe, which makes vaccine production and use safer and easier, though they lack potency to induce acceptable immunity and long-term protection. The incorporation of additional immune stimulating components, named adjuvants, is required to generate a strong protective immune response. Nucleic acids (DNA and RNA) and their synthetic analogs are promising candidates as vaccine adjuvants activating Toll-like receptors (TLRs). Additionally, in the last few years several nanocarriers have emerged as platforms for targeted co-delivery of antigens and adjuvants. In this review, we focus on the recent developments in polymer nanomaterials presenting nucleic acids as vaccine adjuvants. We aim to compare the effectiveness of the various classes of polymers in immune modulating materials (nanoparticles, dendrimers, single-chain particles, nanogels, polymersomes and DNA-based architectures). In particular, we address the critical role of parameters such as size, shape, complexation and release of TLR ligands, cellular uptake, stability, toxicity and potential importance of spatial control in ligand presentation.
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Affiliation(s)
- Alice Comberlato
- IMX/IBI, EPFL, EPFL-STI-IMX-PBL MXC 340 Station 12, Lausanne, 1015, Switzerland.
| | - Kaltrina Paloja
- IMX/IBI, EPFL, EPFL-STI-IMX-PBL MXC 340 Station 12, Lausanne, 1015, Switzerland.
| | - Maartje M C Bastings
- IMX/IBI, EPFL, EPFL-STI-IMX-PBL MXC 340 Station 12, Lausanne, 1015, Switzerland.
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17
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Liu J, Zhang R, Xu ZP. Nanoparticle-Based Nanomedicines to Promote Cancer Immunotherapy: Recent Advances and Future Directions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1900262. [PMID: 30908864 DOI: 10.1002/smll.201900262] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/21/2019] [Indexed: 05/27/2023]
Abstract
Cancer immunotherapy is a promising cancer terminator by directing the patient's own immune system in the fight against this challenging disorder. Despite the monumental therapeutic potential of several immunotherapy strategies in clinical applications, the efficacious responses of a wide range of immunotherapeutic agents are limited in virtue of their inadequate accumulation in the tumor tissue and fatal side effects. In the last decades, increasing evidences disclose that nanotechnology acts as an appealing solution to address these technical barriers via conferring rational physicochemical properties to nanomaterials. In this Review, an imperative emphasis will be drawn from the current understanding of the effect of a nanosystem's structure characteristics (e.g., size, shape, surface charge, elasticity) and its chemical modification on its transport and biodistribution behavior. Subsequently, rapid-moving advances of nanoparticle-based cancer immunotherapies are summarized from traditional vaccine strategies to recent novel approaches, including delivery of immunotherapeutics (such as whole cancer cell vaccines, immune checkpoint blockade, and immunogenic cell death) and engineered immune cells, to regulate tumor microenvironment and activate cellular immunity. The future prospects may involve in the rational combination of a few immunotherapies for more efficient cancer inhibition and elimination.
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Affiliation(s)
- Jianping Liu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Run Zhang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Zhi Ping Xu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
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18
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Tran TH, Tran TTP, Truong DH, Nguyen HT, Pham TT, Yong CS, Kim JO. Toll-like receptor-targeted particles: A paradigm to manipulate the tumor microenvironment for cancer immunotherapy. Acta Biomater 2019; 94:82-96. [PMID: 31129358 DOI: 10.1016/j.actbio.2019.05.043] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/26/2019] [Accepted: 05/19/2019] [Indexed: 12/15/2022]
Abstract
The expression of Toll-like receptors (TLRs) on antigen presenting cells, especially dendritic cells, offers several sensitive mediators to trigger an adaptive immune response, which potentially can be exploited to detect and eliminate pathogenic objects. Consequently, numerous agonists that target TLRs are being used clinically either alone or in combination with other therapies to strengthen the immune system in the battle against cancer. This review summarizes the roles of TLRs in tumor biology, and focuses on relevant TLR-dependent antitumor pathways and the conjugation of TLR agonists as adjuvants to nano- and micro-particles for boosting responses leading to cancer suppression and eradication. STATEMENT OF SIGNIFICANCE: Toll-like receptors (TLRs), which express on antigen presenting cells, such as dendritic cells and macrophages, play an important role in sensing pathogenic agents and inducing adaptive immunity. As a result, several TLR agonists have been investigating as therapeutic agents individually or in combination with other treatment modalities for cancer treatment through boosting the immune system. This review aims to focus on the roles of TLRs in cancer and TLR-dependent antitumor pathways as well as the use of different nano- or micro-particles bearing TLR agonists for tumor inhibition and elimination.
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Affiliation(s)
- Tuan Hiep Tran
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Viet Nam; Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
| | - Thi Thu Phuong Tran
- The Institute of Molecular Genetics of Montpellier, CNRS, Montpellier, France
| | - Duy Hieu Truong
- Institute of Research and Development, Duy Tan University, Da Nang, Viet Nam.
| | - Hanh Thuy Nguyen
- College of Pharmacy, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Republic of Korea
| | - Tung Thanh Pham
- College of Pharmacy, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Republic of Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Republic of Korea
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Republic of Korea.
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19
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Ayala‐Cuellar AP, Cho J, Choi K. Toll‐like receptors: A pathway alluding to cancer control. J Cell Physiol 2019; 234:21707-21715. [DOI: 10.1002/jcp.28879] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 05/08/2019] [Accepted: 05/09/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Ana Patricia Ayala‐Cuellar
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine Chungbuk National University Cheongju Chungbuk Republic of Korea
| | - Jaejin Cho
- Department of Dental Regenerative Biotechnology Seoul National University Seoul Republic of Korea
| | - Kyung‐Chul Choi
- Laboratory of Biochemistry and Immunology, College of Veterinary Medicine Chungbuk National University Cheongju Chungbuk Republic of Korea
- Institute of Life Science and Bio‐Engineering, TheraCell Bio & Science Cheongju Chungbuk Republic of Korea
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20
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Biocompatibility, biodegradation and biomedical applications of poly(lactic acid)/poly(lactic-co-glycolic acid) micro and nanoparticles. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2019. [DOI: 10.1007/s40005-019-00439-x] [Citation(s) in RCA: 187] [Impact Index Per Article: 37.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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21
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Abstract
Toll-like receptors (TLRs) are associated with tumor growth and immunosuppression, as well as apoptosis and immune system activation. TLRs can activate apoptosis and innate and adaptive immunity pathways, which can be pharmacologically targeted for the development of anticancer oncotherapies. Several studies and clinical trials indicate that TLR agonists are promising adjuvants or elements of novel therapies, particularly when used in conjunction with chemotherapy or radiotherapy. An increasing number of studies suggest that the activation of TLRs in various cancer types is related to oncotherapy; however, before this finding can be applied to clinical practice, additional studies are required. Research suggests that TLR agonists may have potential applications in cancer therapy; nevertheless, because TLR signaling can also promote tumorigenesis, a critical and comprehensive evaluation of TLR action is warranted. This review focuses on recent studies that have assessed the strengths and weaknesses of utilizing TLR agonists as potential anticancer agents.
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Affiliation(s)
- Caiqi Liu
- Department of Gastroenterology, Second Affiliated Hospital of Harbin Medical University, Harbin, P.R. China
| | - Ci Han
- Department of Critical Care Medicine, Third Affiliated Hospital of Harbin Medical University, Harbin, P.R. China
| | - Jinfeng Liu
- Department of Pain, Second Affiliated Hospital of Harbin Medical University, Harbin, P.R. China
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22
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Recent advances in applying nanotechnologies for cancer immunotherapy. J Control Release 2018; 288:239-263. [PMID: 30223043 DOI: 10.1016/j.jconrel.2018.09.010] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 09/11/2018] [Accepted: 09/12/2018] [Indexed: 12/13/2022]
Abstract
Cancer immunotherapy aimed at boosting cancer-specific immunoresponses to eradicate tumor cells has evolved as a new treatment modality. Nanoparticles incorporating antigens and immunomodulatory agents can activate immune cells and modulate the tumor microenvironment to enhance anti-tumor immunity. The nanotechnology approach has been demonstrated to be superior to standard formulations in in-vivo settings. In this article, we focus on recent advances made within the last 5 years in nanoparticle-based cancer immunotherapy, including peptide- and nucleic acid-based nanovaccines, nanomedicines containing an immunoadjuvant to activate anti-tumor immunity, nanoparticle delivery of immune checkpoint inhibitors and the combination of the above approaches. Encouraging results and new emerging nanotechnologies in drug delivery promise the continuous growth of this field and ultimately clinical translation of enhanced immunotherapy of cancer.
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23
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Combination therapy of simvastatin and 5, 6-dimethylxanthenone-4-acetic acid synergistically suppresses the aggressiveness of B16.F10 melanoma cells. PLoS One 2018; 13:e0202827. [PMID: 30138430 PMCID: PMC6107259 DOI: 10.1371/journal.pone.0202827] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 08/09/2018] [Indexed: 12/15/2022] Open
Abstract
The major drawback of current anti-angiogenic therapies is drug resistance, mainly caused by overexpression of the transcription factor, hypoxia-inducible factor 1α (HIF-1α) as a result of treatment-induced hypoxia, which stimulates cancer cells to develop aggressive and immunosuppressive phenotypes. Moreover, the cancer cell resistance to anti-angiogenic therapies is deeply mediated by the communication between tumor cells and tumor-associated macrophages (TAMs)-the most important microenvironmental cells for the coordination of all supportive processes in tumor development. Thus, simultaneous targeting of TAMs and cancer cells could improve the outcome of the anti-angiogenic therapies. Since our previous studies proved that simvastatin (SIM) exerts strong antiproliferative actions on B16.F10 murine melanoma cells via reduction of TAMs-mediated oxidative stress and inhibition of intratumor production of HIF-1α, we investigated whether the antitumor efficacy of the anti-angiogenic agent-5,6-dimethylxanthenone-4-acetic acid (DMXAA) could be improved by its co-administration with the lipophilic statin. Our results provide confirmatory evidence for the ability of the combined treatment to suppress the aggressive phenotype of the B16.F10 melanoma cells co-cultured with TAMs under hypoxia-mimicking conditions in vitro. Thus, proliferation and migration capacity of the melanoma cells were strongly decelerated after the co-administration of SIM and DMXAA. Moreover, our data suggested that the anti-oxidant action of the combined treatment, as a result of melanogenesis stimulation, might be the principal cause for the simultaneous suppression of key molecules involved in melanoma cell aggressiveness, present in melanoma cells (HIF-1α) as well as in TAMs (arginase-1). Finally, the concomitant suppression of these proteins might have contributed to a very strong inhibition of the angiogenic capacity of the cell co-culture microenvironment.
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24
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Le QV, Choi J, Oh YK. Nano delivery systems and cancer immunotherapy. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2018. [DOI: 10.1007/s40005-018-0399-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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25
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Widmer J, Thauvin C, Mottas I, Nguyen VN, Delie F, Allémann E, Bourquin C. Polymer-based nanoparticles loaded with a TLR7 ligand to target the lymph node for immunostimulation. Int J Pharm 2017; 535:444-451. [PMID: 29157965 DOI: 10.1016/j.ijpharm.2017.11.031] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 11/15/2017] [Accepted: 11/16/2017] [Indexed: 12/15/2022]
Abstract
Small-molecule agonists for the Toll-like receptors (TLR) 7 and 8 are effective for the immunotherapy of skin cancer when used as topical agents. Their systemic use has however been largely unsuccessful due to dose-limiting toxicity. We propose a polymer-based nanodelivery system to target resiquimod, a TLR7 ligand, to the lymph node in order to focus the immunostimulatory activity and to prevent a generalized inflammatory response. We demonstrate successful encapsulation of resiquimod in methoxypoly(ethylene glycol)-b-poly(DL-lactic acid) (mPEG-PLA) and mixed poly(DL-lactic-co-glycolic acid) (PLGA)/mPEG-PLA nanoparticles. We show that these particles are taken up mainly by dendritic cells and macrophages, which are the prime initiators of anticancer immune responses. Nanoparticles loaded with resiquimod activate these cells, demonstrating the availability of the immune-stimulating cargo. The unloaded particles are non-inflammatory and do not have cytotoxic activity on immune cells. Following subcutaneous injection in mice, mPEG-PLA and PLGA/mPEG-PLA nanoparticles are detected in dendritic cells and macrophages in the draining lymph nodes, demonstrating the targeting potential of these particles. Thus, polymer-based nanoparticles represent a promising delivery system that allows lymph node targeting for small-molecule TLR7 agonists in the context of systemic cancer immunotherapy.
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Affiliation(s)
- Jérôme Widmer
- Department of Medicine, Faculty of Science, University of Fribourg, Chemin Du Musée 5, 1700 Fribourg, Switzerland
| | - Cédric Thauvin
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Rue Michel-Servet 1, 1211 Geneva, Switzerland
| | - Inès Mottas
- Department of Medicine, Faculty of Science, University of Fribourg, Chemin Du Musée 5, 1700 Fribourg, Switzerland; School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Rue Michel-Servet 1, 1211 Geneva, Switzerland
| | - Van Nga Nguyen
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Rue Michel-Servet 1, 1211 Geneva, Switzerland
| | - Florence Delie
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Rue Michel-Servet 1, 1211 Geneva, Switzerland
| | - Eric Allémann
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Rue Michel-Servet 1, 1211 Geneva, Switzerland.
| | - Carole Bourquin
- Department of Medicine, Faculty of Science, University of Fribourg, Chemin Du Musée 5, 1700 Fribourg, Switzerland; School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Rue Michel-Servet 1, 1211 Geneva, Switzerland.
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26
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Ebrahimian M, Hashemi M, Maleki M, Hashemitabar G, Abnous K, Ramezani M, Haghparast A. Co-delivery of Dual Toll-Like Receptor Agonists and Antigen in Poly(Lactic-Co-Glycolic) Acid/Polyethylenimine Cationic Hybrid Nanoparticles Promote Efficient In Vivo Immune Responses. Front Immunol 2017; 8:1077. [PMID: 28955328 PMCID: PMC5601407 DOI: 10.3389/fimmu.2017.01077] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Accepted: 08/18/2017] [Indexed: 11/16/2022] Open
Abstract
Strategies to design delivery vehicles are critical in modern vaccine-adjuvant development. Nanoparticles (NPs) encapsulating antigen(s) and adjuvant(s) are promising vehicles to deliver antigen(s) and adjuvant(s) to antigen-presenting cells (APCs), allowing optimal immune responses against a specific pathogen. In this study, we developed a novel adjuvant delivery approach for induction of efficient in vivo immune responses. Polyethylenimine (PEI) was physically conjugated to poly(lactic-co-glycolic) acid (PLGA) to form PLGA/PEI NPs. This complex was encapsulated with resiquimod (R848) as toll-like receptor (TLR) 7/8 agonist, or monophosphoryl lipid A (MPLA) as TLR4 agonist and co-assembled with cytosine-phosphorothioate-guanine oligodeoxynucleotide (CpG ODN) as TLR9 agonist to form a tripartite formulation [two TLR agonists (inside and outside NPs) and PLGA/PEI NPs as delivery system]. The physicochemical characteristics, cytotoxicity and cellular uptake of these synthesized delivery vehicles were investigated. Cellular viability test revealed no pronounced cytotoxicity as well as increased cellular uptake compared to control groups in murine macrophage cells (J774 cell line). In the next step, PLGA (MPLA or R848)/PEI (CpG ODN) were co-delivered with ovalbumin (OVA) encapsulated into PLGA NPs to enhance the induction of immune responses. The immunogenicity properties of these co-delivery formulations were examined in vivo by evaluating the cytokine (IFN-γ, IL-4, and IL-1β) secretion and antibody (IgG1, IgG2a) production. Robust and efficient immune responses were achieved after in vivo administration of PLGA (MPLA or R848)/PEI (CpG ODN) co-delivered with OVA encapsulated in PLGA NPs in BALB/c mice. Our results demonstrate a rational design of using dual TLR agonists in a context-dependent manner for efficient nanoparticulate adjuvant-vaccine development.
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Affiliation(s)
- Mahboubeh Ebrahimian
- Division of Biotechnology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
- Immunology Section, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Maryam Hashemi
- Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Maleki
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Gholamreza Hashemitabar
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Khalil Abnous
- Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Ramezani
- Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Alireza Haghparast
- Division of Biotechnology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
- Immunology Section, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
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