1
|
Diloknawarit B, Lee K, Choo P, Odom TW. Nanoparticle Anisotropy Increases Targeting Interactions on Live-Cell Membranes. ACS NANO 2024; 18:12537-12546. [PMID: 38684051 DOI: 10.1021/acsnano.4c02700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
This paper describes how branch lengths of anisotropic nanoparticles can affect interactions between grafted ligands and cell-membrane receptors. Using live-cell, single-particle tracking, we found that DNA aptamer-gold nanostar nanoconstructs with longer branches showed improved binding efficacy to human epidermal growth factor receptor 2 (HER2) on cancer cell membranes. Inhibiting nanoconstruct-HER2 binding promoted nonspecific interactions, which increased the rotational speed of long-branched nanoconstructs but did not affect that of short-branched constructs. Bivariate analysis of the rotational and translational dynamics showed that longer branch lengths increased the ratio of targeting to nontargeting interactions. We also found that longer branches increased the nanoconstruct-cell interaction times before internalization and decreased intracellular trafficking velocities. Differences in binding efficacy revealed by single-particle dynamics can be attributed to the distinct protein corona distributions on short- and long-branched nanoconstructs, as validated by transmission electron microscopy. Minimal protein adsorption at the high positive curvature tips of long-branched nanoconstructs facilitated binding of DNA aptamer ligands to HER2. Our study reveals the significance of nanoparticle branch length in regulating local chemical environment and interactions with live cells at the single-particle level.
Collapse
Affiliation(s)
- Bundit Diloknawarit
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Kwahun Lee
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Priscilla Choo
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Teri W Odom
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| |
Collapse
|
2
|
Li M, Yao H, Yi K, Lao YH, Shao D, Tao Y. Emerging nanoparticle platforms for CpG oligonucleotide delivery. Biomater Sci 2024; 12:2203-2228. [PMID: 38293828 DOI: 10.1039/d3bm01970e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Unmethylated cytosine-phosphate-guanine (CpG) oligodeoxynucleotides (ODNs), which were therapeutic DNA with high immunostimulatory activity, have been applied in widespread applications from basic research to clinics as therapeutic agents for cancer immunotherapy, viral infection, allergic diseases and asthma since their discovery in 1995. The major factors to consider for clinical translation using CpG motifs are the protection of CpG ODNs from DNase degradation and the delivery of CpG ODNs to the Toll-like receptor-9 expressed human B-cells and plasmacytoid dendritic cells. Therefore, great efforts have been devoted to the advances of efficient delivery systems for CpG ODNs. In this review, we outline new horizons and recent developments in this field, providing a comprehensive summary of the nanoparticle-based CpG delivery systems developed to improve the efficacy of CpG-mediated immune responses, including DNA nanostructures, inorganic nanoparticles, polymer nanoparticles, metal-organic-frameworks, lipid-based nanosystems, proteins and peptides, as well as exosomes and cell membrane nanoparticles. Moreover, future challenges in the establishment of CpG delivery systems for immunotherapeutic applications are discussed. We expect that the continuously growing interest in the development of CpG-based immunotherapy will certainly fuel the excitement and stimulation in medicine research.
Collapse
Affiliation(s)
- Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.
| | - Haochen Yao
- Hepatobiliary and Pancreatic Surgery Department, General Surgery Center, First Hospital of Jilin University, No. 1 Xinmin Street, Changchun, 130021, Jilin, China
| | - Ke Yi
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.
| | - Yeh-Hsing Lao
- Department of Pharmaceutical Sciences, University at Buffalo, The State University of New York, Buffalo, NY, 14214, USA
| | - Dan Shao
- Institutes of Life Sciences, School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou, China
| | - Yu Tao
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China.
| |
Collapse
|
3
|
Wu YL, Lee K, Diloknawarit B, Odom TW. Ligand Separation on Nanoconstructs Affects Targeting Selectivity to Protein Dimers on Cell Membranes. NANO LETTERS 2024; 24:519-524. [PMID: 38126338 DOI: 10.1021/acs.nanolett.3c04641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
This work demonstrates that targeting ligand density on nanoparticles can affect interactions between the nanoconstructs and cell membrane receptors. We discovered that when the separation between covalently grafted DNA aptamers on gold nanostars was comparable to the distance between binding sites on a receptor dimer (matched density; MD), nanoconstructs exhibited a higher selectivity for binding to the dimeric form of the protein. Single-particle dynamics of MD nanoconstructs showed slower rotational rates and larger translational footprints on cancer cells expressing more dimeric forms of receptors (dimer+) compared with cells having more monomeric forms (dimer-). In contrast, nanoconstructs with either increased (nonmatched density; NDlow) or decreased ligand spacing (NDhigh) had minimal changes in dynamics on either dimer+ or dimer- cells. Real-time, single-particle analyses can reveal the importance of nanoconstruct ligand density for the selective targeting of membrane receptors in live cells.
Collapse
Affiliation(s)
- Yuhao Leo Wu
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Kwahun Lee
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Bundit Diloknawarit
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Teri W Odom
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| |
Collapse
|
4
|
Xi Z, Zhang R, Kiessling F, Lammers T, Pallares RM. Role of Surface Curvature in Gold Nanostar Properties and Applications. ACS Biomater Sci Eng 2024; 10:38-50. [PMID: 37249042 DOI: 10.1021/acsbiomaterials.3c00249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Gold nanostars (AuNSs) are nanoparticles with intricate three-dimensional structures and shape-dependent optoelectronic properties. For example, AuNSs uniquely display three distinct surface curvatures, i.e. neutral, positive, and negative, which provide different environments to adsorbed ligands. Hence, these curvatures are used to introduce different surface chemistries in nanoparticles. This review summarizes and discusses the role of surface curvature in AuNS properties and its impact on biomedical and chemical applications, including surface-enhanced Raman spectroscopy, contrast agent performance, and catalysis. We examine the main synthetic approaches to generate AuNSs, control their morphology, and discuss their benefits and drawbacks. We also describe the optical characteristics of AuNSs and discuss how these depend on nanoparticle morphology. Finally, we analyze how AuNS surface curvature endows them with properties distinctly different from those of other nanoparticles, such as strong electromagnetic fields at the tips and increased hydrophilic environments at the indentations, together making AuNSs uniquely useful for biosensing, imaging, and local chemical manipulation.
Collapse
Affiliation(s)
- Zhongqian Xi
- Biohybrid Nanomedical Materials Group, Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, Aachen 52074, Germany
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, Aachen 52074, Germany
| | - Rui Zhang
- Biohybrid Nanomedical Materials Group, Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, Aachen 52074, Germany
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, Aachen 52074, Germany
| | - Fabian Kiessling
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, Aachen 52074, Germany
| | - Twan Lammers
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, Aachen 52074, Germany
| | - Roger M Pallares
- Biohybrid Nanomedical Materials Group, Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, Aachen 52074, Germany
- Institute for Experimental Molecular Imaging, RWTH Aachen University Hospital, Aachen 52074, Germany
| |
Collapse
|
5
|
Chen YF, Wang Y, Wang Y, Luo YL, Lu ZD, Du XJ, Xu CF, Wang J. Optimized Cationic Lipid-assisted Nanoparticle for Delivering CpG Oligodeoxynucleotides to Treat Hepatitis B Virus Infection. Pharm Res 2023; 40:145-156. [PMID: 36002611 DOI: 10.1007/s11095-022-03307-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 05/25/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE Hepatitis B virus (HBV) infection is such a global health problem that hundreds of millions of people are HBV carriers. Current anti-viral agents can inhibit HBV replication, but can hardly eradicate HBV. Cytosine-phosphate-guanosine (CpG) oligodeoxynucleotides (ODNs) are an adjuvant that can activate plasmacytoid dendritic cells (pDCs) and conventional dendritic cells (cDCs) to induce therapeutic immunity for HBV eradication. However, efficient delivery of CpG ODNs into pDCs and cDCs remains a challenge. In this study, we constructed a series of cationic lipid-assisted nanoparticles (CLANs) using different cationic lipids to screen an optimal nanoparticle for delivering CpG ODNs into pDCs and cDCs. METHODS We constructed different CLANCpG using six cationic lipids and analyzed the cellular uptake of different CLANCpG by pDCs and cDCs in vitro and in vivo, and further analyzed the efficiency of different CLANCpG for activating pDCs and cDCs in both wild type mice and HBV-carrier mice. RESULTS We found that CLAN fabricated with 1,2-Dioleoyl-3-trimethylammonium propane (DOTAP) showed the highest efficiency for delivering CpG ODNs into pDCs and cDCs, resulting in strong therapeutic immunity in HBV-carrier mice. By using CLANCpG as an immune adjuvant in combination with the injection of recombinant hepatitis B surface antigen (rHBsAg), HBV was successfully eradicated and the chronic liver inflammation in HBV-carrier mice was reduced. CONCLUSION We screened an optimized CLAN fabricated with DOTAP for efficient delivery of CpG ODNs to pDCs and cDCs, which can act as a therapeutic vaccine adjuvant for treating HBV infection.
Collapse
Affiliation(s)
- Yi-Fang Chen
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 511442, People's Republic of China
| | - Yan Wang
- School of Medicine, South China University of Technology, Guangzhou, 510006, People's Republic of China
| | - Yue Wang
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 511442, People's Republic of China.,National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, People's Republic of China.,Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, People's Republic of China
| | - Ying-Li Luo
- School of Medicine, South China University of Technology, Guangzhou, 510006, People's Republic of China
| | - Zi-Dong Lu
- School of Medicine, South China University of Technology, Guangzhou, 510006, People's Republic of China
| | - Xiao-Jiao Du
- School of Medicine, South China University of Technology, Guangzhou, 510006, People's Republic of China.
| | - Cong-Fei Xu
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 511442, People's Republic of China. .,National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, People's Republic of China.
| | - Jun Wang
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 511442, People's Republic of China.,National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, People's Republic of China.,Guangdong Provincial Key Laboratory of Biomedical Engineering, South China University of Technology, Guangzhou, 510006, People's Republic of China
| |
Collapse
|
6
|
Du RR, Cedrone E, Romanov A, Falkovich R, Dobrovolskaia MA, Bathe M. Innate Immune Stimulation Using 3D Wireframe DNA Origami. ACS NANO 2022; 16:20340-20352. [PMID: 36459697 PMCID: PMC10144931 DOI: 10.1021/acsnano.2c06275] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Three-dimensional wireframe DNA origami have programmable structural and sequence features that render them potentially suitable for prophylactic and therapeutic applications. However, their innate immunological properties, which stem from parameters including geometric shape and cytosine-phosphate-guanine dinucleotide (CpG) content, remain largely unknown. Here, we investigate the immunostimulatory properties of 3D wireframe DNA origami on the TLR9 pathway using both reporter cell lines and primary immune cells. Our results suggest that bare 3D polyhedral wireframe DNA origami induce minimal TLR9 activation despite the presence of numerous internal CpG dinucleotides. However, when displaying multivalent CpG-containing ssDNA oligos, wireframe DNA origami induce robust TLR9 pathway activation, along with enhancement of downstream immune response as evidenced by increases in Type I and Type III interferon (IFN) production in peripheral blood mononuclear cells. Further, we find that CpG copy number and spatial organization each contribute to the magnitude of TLR9 signaling and that NANP-attached CpGs do not require phosphorothioate stabilization to elicit signaling. These results suggest key design parameters for wireframe DNA origami that can be programmed to modulate immune pathway activation controllably for prophylactic and therapeutic applications.
Collapse
Affiliation(s)
- Rebecca R. Du
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Edward Cedrone
- Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA
| | - Anna Romanov
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Reuven Falkovich
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Marina A. Dobrovolskaia
- Nanotechnology Characterization Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, MD 21702, USA
| | - Mark Bathe
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| |
Collapse
|
7
|
Pallares RM, Abergel RJ. Development of radiopharmaceuticals for targeted alpha therapy: Where do we stand? Front Med (Lausanne) 2022; 9:1020188. [PMID: 36619636 PMCID: PMC9812962 DOI: 10.3389/fmed.2022.1020188] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 12/05/2022] [Indexed: 12/24/2022] Open
Abstract
Targeted alpha therapy is an oncological treatment, where cytotoxic doses of alpha radiation are locally delivered to tumor cells, while the surrounding healthy tissue is minimally affected. This therapeutic strategy relies on radiopharmaceuticals made of medically relevant radionuclides chelated by ligands, and conjugated to targeting vectors, which promote the drug accumulation in tumor sites. This review discusses the state-of-the-art in the development of radiopharmaceuticals for targeted alpha therapy, breaking down their key structural components, such as radioisotope, targeting vector, and delivery formulation, and analyzing their pros and cons. Moreover, we discuss current drawbacks that are holding back targeted alpha therapy in the clinic, and identify ongoing strategies in field to overcome those issues, including radioisotope encapsulation in nanoformulations to prevent the release of the daughters. Lastly, we critically discuss potential opportunities the field holds, which may contribute to targeted alpha therapy becoming a gold standard treatment in oncology in the future.
Collapse
Affiliation(s)
- Roger M. Pallares
- Lawrence Berkeley National Laboratory, Chemical Sciences Division, Berkeley, CA, United States
| | - Rebecca J. Abergel
- Lawrence Berkeley National Laboratory, Chemical Sciences Division, Berkeley, CA, United States,Department of Nuclear Engineering, University of California, Berkeley, Berkeley, CA, United States,*Correspondence: Rebecca J. Abergel,
| |
Collapse
|
8
|
Bhoge PR, Mardhekar S, Toraskar S, Subramani B, Kikkeri R. Pairing Nanoparticles Geometry with TLR Agonists to Modulate Immune Responses for Vaccine Development. ACS APPLIED BIO MATERIALS 2022; 5:5675-5681. [PMID: 36375049 DOI: 10.1021/acsabm.2c00716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Nanotechnology-based vaccine development necessitates understanding the crucial biophysical properties of nanostructures that alter immune responses. In this study, we demonstrate the synergistic effect of gold nanoparticles (AuNPs) shapes with toll-like receptor (TLR) agonists in immune modulation activity. Our results showed that CpG- and imidazoquinoline-conjugated rod-shaped AuNPs display relatively fast uptake by bone marrow-derived macrophage cells but exhibit poor immunogenic responses compared to their spherical and star-shaped AuNP counterparts. Surprisingly, star-shaped AuNPs exhibited intense pro-inflammatory cytokine secretion. Further mechanistic studies showed that star-shaped AuNPs were abundantly localized in the late endosome and lysosomal regions, whereas rod-shaped AuNPs were majorly sequestered in the mitochondrial region. These findings reveal that the shape of the nanostructures plays a pivotal role in driving the adjuvant molecules toward their receptors and altering immune responses.
Collapse
Affiliation(s)
- Preeti Ravindra Bhoge
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra 411008, India
| | - Sandhya Mardhekar
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra 411008, India
| | - Suraj Toraskar
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra 411008, India
| | - Balamurugan Subramani
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra 411008, India
| | - Raghavendra Kikkeri
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra 411008, India
| |
Collapse
|
9
|
Image-guided in situ cancer vaccination with combination of multi-functional nano-adjuvant and an irreversible electroporation technique. Biomaterials 2022; 289:121762. [DOI: 10.1016/j.biomaterials.2022.121762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 08/16/2022] [Accepted: 08/21/2022] [Indexed: 11/19/2022]
|
10
|
Huang Z, Callmann CE, Wang S, Vasher MK, Evangelopoulos M, Petrosko SH, Mirkin CA. Rational Vaccinology: Harnessing Nanoscale Chemical Design for Cancer Immunotherapy. ACS CENTRAL SCIENCE 2022; 8:692-704. [PMID: 35756370 PMCID: PMC9228553 DOI: 10.1021/acscentsci.2c00227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Indexed: 05/12/2023]
Abstract
Cancer immunotherapy is a powerful treatment strategy that mobilizes the immune system to fight disease. Cancer vaccination is one form of cancer immunotherapy, where spatiotemporal control of the delivery of tumor-specific antigens, adjuvants, and/or cytokines has been key to successfully activating the immune system. Nanoscale materials that take advantage of chemistry to control the nanoscale structural arrangement, composition, and release of immunostimulatory components have shown significant promise in this regard. In this Outlook, we examine how the nanoscale structure, chemistry, and composition of immunostimulatory compounds can be modulated to maximize immune response and mitigate off-target effects, focusing on spherical nucleic acids as a model system. Furthermore, we emphasize how chemistry and materials science are driving the rational design and development of next-generation cancer vaccines. Finally, we identify gaps in the field that should be addressed moving forward and outline future directions to galvanize researchers from multiple disciplines to help realize the full potential of this form of cancer immunotherapy through chemistry and rational vaccinology.
Collapse
Affiliation(s)
- Ziyin Huang
- Department
of Materials Science and Engineering, International Institute for Nanotechnology, Department of Chemistry, Interdisciplinary
Biological Sciences Graduate Program, andDepartment of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Cassandra E. Callmann
- Department
of Materials Science and Engineering, International Institute for Nanotechnology, Department of Chemistry, Interdisciplinary
Biological Sciences Graduate Program, andDepartment of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Shuya Wang
- Department
of Materials Science and Engineering, International Institute for Nanotechnology, Department of Chemistry, Interdisciplinary
Biological Sciences Graduate Program, andDepartment of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Matthew K. Vasher
- Department
of Materials Science and Engineering, International Institute for Nanotechnology, Department of Chemistry, Interdisciplinary
Biological Sciences Graduate Program, andDepartment of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Michael Evangelopoulos
- Department
of Materials Science and Engineering, International Institute for Nanotechnology, Department of Chemistry, Interdisciplinary
Biological Sciences Graduate Program, andDepartment of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Sarah Hurst Petrosko
- Department
of Materials Science and Engineering, International Institute for Nanotechnology, Department of Chemistry, Interdisciplinary
Biological Sciences Graduate Program, andDepartment of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Chad A. Mirkin
- Department
of Materials Science and Engineering, International Institute for Nanotechnology, Department of Chemistry, Interdisciplinary
Biological Sciences Graduate Program, andDepartment of Biomedical Engineering, Northwestern University, Evanston, Illinois 60208, United States
| |
Collapse
|
11
|
Huang Y, Li X, Cao J, Wei X, Li Y, Wang Z, Cai X, Li R, Chen J. Use of dissociation degree in lysosomes to predict metal oxide nanoparticle toxicity in immune cells: Machine learning boosts nano-safety assessment. ENVIRONMENT INTERNATIONAL 2022; 164:107258. [PMID: 35483183 DOI: 10.1016/j.envint.2022.107258] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 03/22/2022] [Accepted: 04/20/2022] [Indexed: 06/14/2023]
Abstract
Potential immune responses resulting from exposure to metal oxide nanoparticles (MeONPs) have been the subject of intensive discussion in the last decade. Despite the extensive use of MeONPs in several applications, their toxic effects on immune cells have rarely been predicted in silico because of the complexity of immune responses and the complicated properties of MeONPs. In the present study, machine learning (ML) methods coupled with high-throughput in vitro bioassays were used to develop models for predicting the toxicity of MeONPs in immune cells. An ML model with a high prediction accuracy (97% and 96% in the training and test sets, respectively) was constructed by resolving the class imbalance problem in training and applying an ensembled algorithm. Further, to verify the model, MeONPs outside the scope of the datasets were selected to examine their cytotoxicity experimentally. The model was validated against independent MeONPs, with an accuracy of 91%. ML methods coupled with intracellular imaging revealed that the toxic ions released in the lysosome were an important determinant of toxicity in immune cells. Furthermore, ζ-potential, electronegativity, and size are crucial factors for predicting nanotoxicity. We believe the established modeling framework will provide useful insights for designing and applying safe nanoparticles and facilitating decision-making for environmental and health protection.
Collapse
Affiliation(s)
- Yang Huang
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), Dalian Key Laboratory on Chemicals Risk Control and Pollution Prevention Technology, School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Xuehua Li
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), Dalian Key Laboratory on Chemicals Risk Control and Pollution Prevention Technology, School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China.
| | - Jiayu Cao
- School of Public Health, Soochow University, Suzhou, Jiangsu 215123, China
| | - Xiaoxuan Wei
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Yue Li
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), Dalian Key Laboratory on Chemicals Risk Control and Pollution Prevention Technology, School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Zhe Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), Dalian Key Laboratory on Chemicals Risk Control and Pollution Prevention Technology, School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| | - Xiaoming Cai
- School of Public Health, Soochow University, Suzhou, Jiangsu 215123, China.
| | - Ruibin Li
- State Key Laboratory of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, Jiangsu 215123, China
| | - Jingwen Chen
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), Dalian Key Laboratory on Chemicals Risk Control and Pollution Prevention Technology, School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China
| |
Collapse
|
12
|
Mahajan AS, Stegh AH. Spherical Nucleic Acids as Precision Therapeutics for the Treatment of Cancer-From Bench to Bedside. Cancers (Basel) 2022; 14:cancers14071615. [PMID: 35406387 PMCID: PMC8996871 DOI: 10.3390/cancers14071615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/16/2022] [Accepted: 03/17/2022] [Indexed: 11/16/2022] Open
Abstract
Spherical Nucleic Acids (SNAs) emerged as a new class of nanotherapeutics consisting of a nanoparticle core densely functionalized with a shell of radially oriented synthetic oligonucleotides. The unique three-dimensional architecture of SNAs protects the oligonucleotides from nuclease-mediated degradation, increases oligonucleotide bioavailability, and in the absence of auxiliary transfection agents, enables robust uptake into tumor and immune cells through polyvalent association with cell surface pattern recognition receptors. When composed of gene-regulatory small interfering (si)RNA or immunostimulatory DNA or RNA oligonucleotides, SNAs silence gene expression and induce immune responses superior to those raised by the oligonucleotides in their "free" form. Early phase clinical trials of gene-regulatory siRNA-based SNAs in glioblastoma (NCT03020017) and immunostimulatory Toll-like receptor 9 (TLR9)-agonistic SNAs carrying unmethylated CpG-rich oligonucleotides in solid tumors (NCT03086278) have shown that SNAs represent a safe, brain-penetrant therapy for inhibiting oncogene expression and stimulating immune responses against tumors. This review focuses on the application of SNAs as precision cancer therapeutics, summarizes the findings from first-in-human clinical trials of SNAs in solid tumors, describes the most recent preclinical efforts to rationally design next-generation multimodal SNA architectures, and provides an outlook on future efforts to maximize the anti-neoplastic activity of the SNA platform.
Collapse
Affiliation(s)
- Akanksha S. Mahajan
- Ken and Ruth Davee Department of Neurology, The International Institute for Nanotechnology, The Malnati Brain Tumor Institute, Feinberg School of Medicine, The Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, IL 60611, USA;
| | - Alexander H. Stegh
- Ken and Ruth Davee Department of Neurology, The International Institute for Nanotechnology, The Malnati Brain Tumor Institute, Feinberg School of Medicine, The Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, IL 60611, USA;
- Department of Neurological Surgery, The Brain Tumor Center, Washington University School of Medicine, Alvin J. Siteman Comprehensive Cancer Center, St. Louis, MO 63110, USA
- Correspondence:
| |
Collapse
|
13
|
Lee K, Jung I, Odom TW. Delivery Order of Nanoconstructs Affects Intracellular Trafficking by Endosomes. J Am Chem Soc 2022; 144:5274-5279. [PMID: 35302362 DOI: 10.1021/jacs.2c02276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This paper reports how the endosomal pathways of nanoparticle (NP) constructs with different surface curvatures are affected by their order of delivery. Sequential incubation of cytosine-phosphate-guanine (CpG)-conjugated spiky and spherical gold NPs with macrophages resulted in different nanoconstruct ratios at the interior edges of endosomes. Application of spiky NPs after spherical NPs accelerated the formation of late-stage endosomes and resulted in larger endosomes, and the spherical NPs were enclosed by the spiky NPs. In contrast, the reverse incubation order produced an asymmetric distribution of the two nanoconstruct shapes in smaller endosomes. Macrophages with a higher proportion of the enclosed spherical NPs as well as a larger ratio of spiky to spherical NPs at the endosomal edge showed enhanced toll-like receptor 9 activation and secretion of proinflammatory cytokines and chemokines. Our results indicate that the subcellular trafficking of targeting nanoconstructs by vesicles is affected by both the delivery order and the endosomal distribution. Our study also establishes a new approach for nanoscale monitoring of intracellular therapeutics delivery with conventional electron microscopy.
Collapse
Affiliation(s)
- Kwahun Lee
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Insub Jung
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Teri W Odom
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| |
Collapse
|
14
|
|
15
|
Tang L, Zhang A, Zhang Z, Zhao Q, Li J, Mei Y, Yin Y, Wang W. Multifunctional inorganic nanomaterials for cancer photoimmunotherapy. Cancer Commun (Lond) 2022; 42:141-163. [PMID: 35001556 PMCID: PMC8822595 DOI: 10.1002/cac2.12255] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/24/2021] [Accepted: 12/30/2021] [Indexed: 12/12/2022] Open
Abstract
Phototherapy and immunotherapy in combination is regarded as the ideal therapeutic modality to treat both primary and metastatic tumors. Immunotherapy uses different immunological approaches to stimulate the immune system to identify tumor cells for targeted elimination. Phototherapy destroys the primary tumors by light irradiation, which induces a series of immune responses through triggering immunogenic cancer cell death. Therefore, when integrating immunotherapy with phototherapy, a novel anti-cancer strategy called photoimmunotherapy (PIT) is emerging. This synergistic treatment modality can not only enhance the effectiveness of both therapies but also overcome their inherent limitations, opening a new era for the current anti-cancer therapy. Recently, the advancement of nanomaterials affords a platform for PIT. From all these nanomaterials, inorganic nanomaterials stand out as ideal mediators in PIT due to their unique physiochemical properties. Inorganic nanomaterials can not only serve as carriers to transport immunomodulatory agents in immunotherapy owing to their excellent drug-loading capacity but also function as photothermal agents or photosensitizers in phototherapy because of their great optical characteristics. In this review, the recent advances of multifunctional inorganic nanomaterial-mediated drug delivery and their contributions to cancer PIT will be highlighted.
Collapse
Affiliation(s)
- Lu Tang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, P. R. China.,National Medical Products Administration Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing, Jiangsu, P. R. China
| | - Aining Zhang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, P. R. China.,National Medical Products Administration Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing, Jiangsu, P. R. China
| | - Ziyao Zhang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, P. R. China.,National Medical Products Administration Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing, Jiangsu, P. R. China
| | - Qingqing Zhao
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, P. R. China.,National Medical Products Administration Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing, Jiangsu, P. R. China
| | - Jing Li
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, P. R. China.,National Medical Products Administration Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing, Jiangsu, P. R. China
| | - Yijun Mei
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, P. R. China.,National Medical Products Administration Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing, Jiangsu, P. R. China
| | - Yue Yin
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, P. R. China.,National Medical Products Administration Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing, Jiangsu, P. R. China
| | - Wei Wang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, P. R. China.,National Medical Products Administration Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing, Jiangsu, P. R. China
| |
Collapse
|
16
|
Wu L, Zhou W, Lin L, Chen A, Feng J, Qu X, Zhang H, Yue J. Delivery of therapeutic oligonucleotides in nanoscale. Bioact Mater 2022; 7:292-323. [PMID: 34466734 PMCID: PMC8379367 DOI: 10.1016/j.bioactmat.2021.05.038] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 04/28/2021] [Accepted: 05/22/2021] [Indexed: 02/07/2023] Open
Abstract
Therapeutic oligonucleotides (TOs) represent one of the most promising drug candidates in the targeted cancer treatment due to their high specificity and capability of modulating cellular pathways that are not readily druggable. However, efficiently delivering of TOs to cancer cellular targets is still the biggest challenge in promoting their clinical translations. Emerging as a significant drug delivery vector, nanoparticles (NPs) can not only protect TOs from nuclease degradation and enhance their tumor accumulation, but also can improve the cell uptake efficiency of TOs as well as the following endosomal escape to increase the therapeutic index. Furthermore, targeted and on-demand drug release of TOs can also be approached to minimize the risk of toxicity towards normal tissues using stimuli-responsive NPs. In the past decades, remarkable progresses have been made on the TOs delivery based on various NPs with specific purposes. In this review, we will first give a brief introduction on the basis of TOs as well as the action mechanisms of several typical TOs, and then describe the obstacles that prevent the clinical translation of TOs, followed by a comprehensive overview of the recent progresses on TOs delivery based on several various types of nanocarriers containing lipid-based nanoparticles, polymeric nanoparticles, gold nanoparticles, porous nanoparticles, DNA/RNA nanoassembly, extracellular vesicles, and imaging-guided drug delivery nanoparticles.
Collapse
Affiliation(s)
- Lei Wu
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510006, Guangdong, China
| | - Wenhui Zhou
- Pharmaceutical Sciences Laboratory and Turku Bioscience Centre, Åbo Akademi University, Turku, 20520, Finland
- Southern Medical University Affiliated Fengxian Hospital, Shanghai, 201499, China
| | - Lihua Lin
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510006, Guangdong, China
| | - Anhong Chen
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510006, Guangdong, China
| | - Jing Feng
- Southern Medical University Affiliated Fengxian Hospital, Shanghai, 201499, China
| | - Xiangmeng Qu
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510006, Guangdong, China
| | - Hongbo Zhang
- Pharmaceutical Sciences Laboratory and Turku Bioscience Centre, Åbo Akademi University, Turku, 20520, Finland
| | - Jun Yue
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, 510006, Guangdong, China
| |
Collapse
|
17
|
Cao Y, Ding S, Zeng L, Miao J, Wang K, Chen G, Li C, Zhou J, Bian XW, Tian G. Reeducating Tumor-Associated Macrophages Using CpG@Au Nanocomposites to Modulate Immunosuppressive Microenvironment for Improved Radio-Immunotherapy. ACS APPLIED MATERIALS & INTERFACES 2021; 13:53504-53518. [PMID: 34704726 DOI: 10.1021/acsami.1c07626] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
With the recent success of immune checkpoint blockade (ICB) in cancer immunotherapy, there has been renewed interest in evaluating the combination of ICB inhibitors with radiotherapy (RT) in clinical trials in view of the localized RT-initiated vaccination effect, which can be augmented further by systemic immune-stimulating agents. Unfortunately, traditional RT/ICB accompanies severe toxicity from high-dose ionizing irradiation and low response rate from RT-aggravated immunosuppression, among which M2-type tumor-associated macrophages (TAMs) play an important role. Herein, CpG-decorated gold (Au) nanoparticles (CpG@Au NPs) were fabricated to improve the RT/ICB efficacy by immune modulation under low-dose X-ray exposure, where Au NPs served as radioenhancers to minimize the radiotoxicity, and yet acted as nanocarriers to deliver CpG, a toll-like receptor 9 agonist, to re-educate immunosuppressive M2 TAMs to immunostimulatory M1 counterparts, thus arousing innate immunity and meanwhile priming T cell activation. When combined with an anti-programmed death 1 antibody, irradiated CpG@Au led to consistent abscopal responses that efficiently suppressed distant tumors in a bilateral GL261 tumor-bearing model. This work thus demonstrates that CpG@Au-mediated macrophage reeducation could efficiently modulate the tumor-immune microenvironment for synergistic RT/ICB.
Collapse
Affiliation(s)
- Yuhua Cao
- Institute of Pathology and Southwest Cancer Center, The First Affiliated Hospital, Third Military Medical University (Army Medical University), and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing 400038, P. R. China
| | - Shuaishuai Ding
- Institute of Pathology and Southwest Cancer Center, The First Affiliated Hospital, Third Military Medical University (Army Medical University), and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing 400038, P. R. China
| | - Lijuan Zeng
- Institute of Pathology and Southwest Cancer Center, The First Affiliated Hospital, Third Military Medical University (Army Medical University), and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing 400038, P. R. China
| | - Jingya Miao
- Institute of Pathology and Southwest Cancer Center, The First Affiliated Hospital, Third Military Medical University (Army Medical University), and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing 400038, P. R. China
| | - Kai Wang
- Institute of Pathology and Southwest Cancer Center, The First Affiliated Hospital, Third Military Medical University (Army Medical University), and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing 400038, P. R. China
- Key Laboratory of Medical Molecular Virology (MOE/NHC/CAMS), School of Basic Medical Sciences and Shanghai Public Health Clinical Center, Shanghai Medical College, Fudan University, Shanghai 200032, P. R. China
| | - Gang Chen
- Institute of Pathology and Southwest Cancer Center, The First Affiliated Hospital, Third Military Medical University (Army Medical University), and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing 400038, P. R. China
| | - Chunyan Li
- Institute of Pathology and Southwest Cancer Center, The First Affiliated Hospital, Third Military Medical University (Army Medical University), and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing 400038, P. R. China
| | - Jingrong Zhou
- Institute of Pathology and Southwest Cancer Center, The First Affiliated Hospital, Third Military Medical University (Army Medical University), and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing 400038, P. R. China
| | - Xiu-Wu Bian
- Institute of Pathology and Southwest Cancer Center, The First Affiliated Hospital, Third Military Medical University (Army Medical University), and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing 400038, P. R. China
| | - Gan Tian
- Institute of Pathology and Southwest Cancer Center, The First Affiliated Hospital, Third Military Medical University (Army Medical University), and Key Laboratory of Tumor Immunopathology, Ministry of Education of China, Chongqing 400038, P. R. China
| |
Collapse
|
18
|
Cai F, Li S, Huang H, Iqbal J, Wang C, Jiang X. Green synthesis of gold nanoparticles for immune response regulation: Mechanisms, applications, and perspectives. J Biomed Mater Res A 2021; 110:424-442. [PMID: 34331516 DOI: 10.1002/jbm.a.37281] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/15/2021] [Accepted: 07/20/2021] [Indexed: 01/16/2023]
Abstract
Immune responses are involved in the pathogenesis of many diseases, including cancer, autoimmune diseases, and chronic inflammation. These responses are attributed to immune cells that produce cytokines, mediate cytotoxicity, and synthesize antibodies. Gold nanoparticles (GNPs) are novel agents that intervene with immune responses because of their unique physical-chemical properties. In particular, GNPs enhance anti-tumour activity during immunotherapy and eliminate excessive inflammation in autoimmune diseases. However, GNPs synthesized by conventional methods are toxic to living organisms. Green biosynthesis provides a safe and eco-friendly method to obtain GNPs from microbes or plant extracts. In this review, we describe several patterns for green GNP biosynthesis. The applications of GNPs to target immune cells and modulate the immune response are summarized. In particular, we elaborate on how GNPs regulate innate immunity and adaptive immunity, including inflammatory signaling and immune cell differentiation. Finally, perspectives and challenges in utilizing green biosynthesized GNPs for novel therapeutic approaches are discussed.
Collapse
Affiliation(s)
- Feiyang Cai
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, China.,School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Shiyi Li
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Hui Huang
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Javed Iqbal
- Department of Botany, Bacha Khan University, Charsadda, Khyber Pakhtunkhwa, Pakistan
| | - Canran Wang
- School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xing Jiang
- School of Nursing, Nanjing University of Chinese Medicine, Nanjing, China
| |
Collapse
|
19
|
Bender EC, Kraynak CA, Huang W, Suggs LJ. Cell-Inspired Biomaterials for Modulating Inflammation. TISSUE ENGINEERING PART B-REVIEWS 2021; 28:279-294. [PMID: 33528306 DOI: 10.1089/ten.teb.2020.0276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Inflammation is a crucial part of wound healing and pathogen clearance. However, it can also play a role in exacerbating chronic diseases and cancer progression when not regulated properly. A subset of current innate immune engineering research is focused on how molecules such as lipids, proteins, and nucleic acids native to a healthy inflammatory response can be harnessed in the context of biomaterial design to promote healing, decrease disease severity, and prolong survival. The engineered biomaterials in this review inhibit inflammation by releasing anti-inflammatory cytokines, sequestering proinflammatory cytokines, and promoting phenotype switching of macrophages in chronic inflammatory disease models. Conversely, other biomaterials discussed here promote inflammation by mimicking pathogen invasion to inhibit tumor growth in cancer models. The form that these biomaterials take spans a spectrum from nanoparticles to large-scale hydrogels to surface coatings on medical devices. Cell-inspired molecules have been incorporated in a variety of creative ways, including loaded into or onto the surface of biomaterials or used as the biomaterials themselves.
Collapse
Affiliation(s)
- Elizabeth C Bender
- Department of Biomedical Engineering and The University of Texas at Austin, Austin, Texas, USA
| | - Chelsea A Kraynak
- Department of Biomedical Engineering and The University of Texas at Austin, Austin, Texas, USA
| | - Wenbai Huang
- Department of Biomedical Engineering and The University of Texas at Austin, Austin, Texas, USA.,Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, Texas, USA
| | - Laura J Suggs
- Department of Biomedical Engineering and The University of Texas at Austin, Austin, Texas, USA
| |
Collapse
|
20
|
Wang Y, Meng HM, Li Z. Near-infrared inorganic nanomaterial-based nanosystems for photothermal therapy. NANOSCALE 2021; 13:8751-8772. [PMID: 33973616 DOI: 10.1039/d1nr00323b] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The development of robust materials for treating diseases through non-invasive photothermal therapy (PTT) has attracted increasing attention in recent years. Among various types of nanomaterials, inorganic nanomaterials with strong absorption in the near-infrared (NIR) window can be employed as high-efficiency photothermal agents to treat cancer and bacterial infections. In addition, inorganic nanomaterials can be easily combined with other drugs or chemical reagents to construct multifunctional nanomaterials to cascade stimulation responses, enhance therapeutic effects, and perform precise medical treatments. In this review, focusing on the latest developments of inorganic nanomaterials in photothermal therapy, we firstly introduced the light-to-heat conversion mechanism of inorganic nanomaterials. Secondly, we summarized the application of common inorganic nanomaterials, such as metallic nanoparticles, transition metal oxide nanoparticles and two dimensional (2D) nanosheets. In addition, the strategy of developing multifunctional nano-platforms with excellent biocompatibility as well as good targeted capability was also expounded. Finally, challenges and new perspectives for designing effective inorganic nanomaterial-based nanosystems for photothermal assisted therapy were also discussed.
Collapse
Affiliation(s)
- Yufei Wang
- College of Chemistry, Institute of Analytical Chemistry for Life Science, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Hong-Min Meng
- College of Chemistry, Institute of Analytical Chemistry for Life Science, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou 450001, P. R. China.
| | - Zhaohui Li
- College of Chemistry, Institute of Analytical Chemistry for Life Science, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, Zhengzhou 450001, P. R. China.
| |
Collapse
|
21
|
Liu D, Liu J, Ma B, Deng B, Leng X, Kong D, Liu L. A simple self-adjuvanting biomimetic nanovaccine self-assembled with the conjugate of phospholipids and nucleotides can induce a strong cancer immunotherapeutic effect. Biomater Sci 2021; 9:84-92. [PMID: 33016303 DOI: 10.1039/d0bm01333a] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Biomimetic nanoparticles have potential applications in many fields due to their favorable properties. Here, we developed a self-adjuvanting biomimetic anti-tumor nanovaccine, which was self-assembled with an amphiphilic conjugate synthesized with the phospholipids of 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE) and hydrophilic Toll-like receptor (TLR9) agonist CpG ODN. The nanovaccine could not only provide effective initial antigen stimulation and sustained long-term antigen supply with a controlled release, but also induce antigen cross-presentation via the MHC-I pathway initiating CD8+ T-cell responses. Moreover, the dense nucleotide shell around the nanovaccine could promote antigen endocytosis via various receptor-mediated pathways into dendritic cells. CpG ODN interacted with TLR9 triggering the cytokine secretion of TNF-α and IL-10, which further boosted the anti-tumor humoral and cellular immune responses, which led to a significant tumor suppressive effect and remarkable survival prolongation. So, this nanovaccine self-assembled with phospholipid-nucleotide amphiphiles can serve as a safe, simple and efficient approach for anti-tumor immunotherapy.
Collapse
Affiliation(s)
- Dan Liu
- The Tianjin Key Laboratory of Biomaterials, Institute of Biomedical Engineering, Peking Union Medical College & Chinese Academy of Medical Sciences, Tianjin 300192, China.
| | | | | | | | | | | | | |
Collapse
|
22
|
Fach M, Fliedner FP, Kempen PJ, Melander F, Hansen AE, Bruun LM, Köster U, Sporer E, Kjær A, Andresen TL, Jensen AI, Henriksen JR. Effective Intratumoral Retention of [ 103 Pd]AuPd Alloy Nanoparticles Embedded in Gel-Forming Liquids Paves the Way for New Nanobrachytherapy. Adv Healthc Mater 2021; 10:e2002009. [PMID: 33763995 DOI: 10.1002/adhm.202002009] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 03/10/2021] [Indexed: 12/31/2022]
Abstract
Local application of radioactive sources as brachytherapy is well established in oncology. This treatment is highly invasive however, due to the insertion of millimeter sized metal seeds. The authors report the development of a new concept for brachytherapy, based on gold-palladium (AuPd) alloy nanoparticles, intrinsically radiolabeled with 103 Pd. These are formulated in a carbohydrate-ester based liquid, capable of forming biodegradable gel-like implants upon injection. This allows for less invasive administration through small-gauge needles. [103 Pd]AuPd nanoparticles with sizes around 20 nm are prepared with radiolabeling efficiencies ranging from 79% to >99%. Coating with the hydrophobic polymer poly(N-isopropylacrylamide) leads to nanoparticle diameters below 40 nm. Dispersing the nanoparticles in ethanol with water insoluble carbohydrate esters gives "nanogels", a low viscosity liquid capable of solidifying upon injection into aqueous environments. Both nanoparticles and radioactivity are stably retained in the nanogel over 25 days (>99%) after formation in aqueous buffers. Animals bearing CT26 murine tumors are injected intratumorally with 25 MBq of the 103 Pd-nanogel, and display tumor growth delay and significantly increase median survival times compared with control groups. Excellent retention in the tumor of both the 103 Pd and the nanoparticle matrix itself is observed, demonstrating a potential for replacing currently used brachytherapy seeds.
Collapse
Affiliation(s)
- Matthias Fach
- DTU Health Technology Center for Nanomedicine and Theranostics Technical University of Denmark Ørsteds Plads 345C Lyngby 2800 Denmark
| | - Frederikke P. Fliedner
- Department of Clinical Physiology Nuclear Medicine & PET and Cluster for Molecular Imaging Department of Biomedical Sciences Rigshospitalet and University of Copenhagen Blegdamsvej 3B Copenhagen 2100 Denmark
| | - Paul J. Kempen
- DTU Health Technology Center for Nanomedicine and Theranostics Technical University of Denmark Ørsteds Plads 345C Lyngby 2800 Denmark
| | - Fredrik Melander
- DTU Health Technology Center for Nanomedicine and Theranostics Technical University of Denmark Ørsteds Plads 345C Lyngby 2800 Denmark
| | - Anders E. Hansen
- DTU Health Technology Center for Nanomedicine and Theranostics Technical University of Denmark Ørsteds Plads 345C Lyngby 2800 Denmark
- Department of Clinical Physiology Nuclear Medicine & PET and Cluster for Molecular Imaging Department of Biomedical Sciences Rigshospitalet and University of Copenhagen Blegdamsvej 3B Copenhagen 2100 Denmark
| | - Linda M. Bruun
- DTU Health Technology Center for Nanomedicine and Theranostics Technical University of Denmark Ørsteds Plads 345C Lyngby 2800 Denmark
| | - Ulli Köster
- Institut Laue‐Langevin 71 Avenue des Martyrs Grenoble 38042 France
| | - Emanuel Sporer
- The Hevesy Laboratory DTU Health Technology Center for Nanomedicine and Theranostics Technical University of Denmark (DTU) Frederiksborgvej 399 Roskilde 4000 Denmark
| | - Andreas Kjær
- Department of Clinical Physiology Nuclear Medicine & PET and Cluster for Molecular Imaging Department of Biomedical Sciences Rigshospitalet and University of Copenhagen Blegdamsvej 3B Copenhagen 2100 Denmark
| | - Thomas L. Andresen
- DTU Health Technology Center for Nanomedicine and Theranostics Technical University of Denmark Ørsteds Plads 345C Lyngby 2800 Denmark
| | - Andreas I. Jensen
- The Hevesy Laboratory DTU Health Technology Center for Nanomedicine and Theranostics Technical University of Denmark (DTU) Frederiksborgvej 399 Roskilde 4000 Denmark
| | - Jonas R. Henriksen
- DTU Health Technology Center for Nanomedicine and Theranostics Technical University of Denmark Ørsteds Plads 345C Lyngby 2800 Denmark
| |
Collapse
|
23
|
Xavier M, Kyriazi ME, Lanham S, Alexaki K, Matthews E, El-Sagheer AH, Brown T, Kanaras AG, Oreffo ROC. Enrichment of Skeletal Stem Cells from Human Bone Marrow Using Spherical Nucleic Acids. ACS NANO 2021; 15:6909-6916. [PMID: 33751885 DOI: 10.1021/acsnano.0c10683] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Human bone marrow (BM)-derived stromal cells contain a population of skeletal stem cells (SSCs), with the capacity to differentiate along the osteogenic, adipogenic, and chondrogenic lineages, enabling their application to clinical therapies. However, current methods to isolate and enrich SSCs from human tissues remain, at best, challenging in the absence of a specific SSC marker. Unfortunately, none of the current proposed markers alone can isolate a homogeneous cell population with the ability to form bone, cartilage, and adipose tissue in humans. Here, we have designed DNA-gold nanoparticles able to identify and sort SSCs displaying specific mRNA signatures. The current approach demonstrates the significant enrichment attained in the isolation of SSCs, with potential therein to enhance our understanding of bone cell biology and translational applications.
Collapse
Affiliation(s)
- Miguel Xavier
- Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Human Development and Health, Institute of Developmental Sciences, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, United Kingdom
| | - Maria-Eleni Kyriazi
- School of Physics and Astronomy, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdom
| | - Stuart Lanham
- Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Human Development and Health, Institute of Developmental Sciences, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, United Kingdom
| | - Konstantina Alexaki
- School of Physics and Astronomy, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdom
| | - Elloise Matthews
- Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Human Development and Health, Institute of Developmental Sciences, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, United Kingdom
| | - Afaf H El-Sagheer
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
- Chemistry Branch, Department of Science and Mathematics, Faculty of Petroleum and Mining Engineering, Suez University, Suez 43721, Egypt
| | - Tom Brown
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Antonios G Kanaras
- School of Physics and Astronomy, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdom
- Institute for Life Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdom
| | - Richard O C Oreffo
- Bone and Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Human Development and Health, Institute of Developmental Sciences, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, United Kingdom
- Institute for Life Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdom
| |
Collapse
|
24
|
Coughlin EE, Hu J, Lee A, Odom TW. Light-Mediated Directed Placement of Different DNA Sequences on Single Gold Nanoparticles. J Am Chem Soc 2021; 143:3671-3676. [DOI: 10.1021/jacs.0c11699] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
25
|
Yin B, Ho LWC, Liu S, Hong H, Tian XY, Li H, Choi CHJ. Sub-10 nm Substrate Roughness Promotes the Cellular Uptake of Nanoparticles by Upregulating Endocytosis-Related Genes. NANO LETTERS 2021; 21:1839-1847. [PMID: 33586442 DOI: 10.1021/acs.nanolett.0c04932] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Nanosubstrate engineering is an established approach for modulating cellular responses, but it remains infrequently exploited to facilitate the intracellular delivery of nanoparticles (NPs). We report nanoscale roughness of the extracellular environment as a critical parameter for regulating the cellular uptake of NPs. After seeding cells atop a substrate that contains randomly immobilized gold NPs (termed AuNP-S) with sub-10 nm surface roughness, we demonstrate that such cells internalize up to ∼100-fold more poly(ethylene glycol)-coated AuNPs (Au@PEG NPs) than those cells seeded on a conventional flat culture plate. Our result is generalizable to 4 different cell types and Au@PEG NPs modified with 13 different hydrocarbyl functional groups. Conditioning cells to AuNP-S not only leads to upregulation of clathrin- and integrin-related genes, but also supports elevated uptake of Au@PEG NPs via clathrin-mediated endocytosis. Our data suggest a simple and robust method for boosting the intracellular delivery of nanomedicines by nanosubstrate engineering.
Collapse
|
26
|
Zhu M, Wang S. Functional Nucleic‐Acid‐Decorated Spherical Nanoparticles: Preparation Strategies and Current Applications in Cancer Therapy. SMALL SCIENCE 2021. [DOI: 10.1002/smsc.202000056] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Min Zhu
- Department of Pharmaceutical Engineering College of Chemistry and Chemical Engineering Central South University No. 932 South Lushan Rd Changsha Hunan 410083 P. R. China
| | - Shan Wang
- Department of Pharmaceutical Engineering College of Chemistry and Chemical Engineering Central South University No. 932 South Lushan Rd Changsha Hunan 410083 P. R. China
| |
Collapse
|
27
|
Kumar S, Mongia A, Gulati S, Singh P, Diwan A, Shukla S. Emerging theranostic gold nanostructures to combat cancer: Novel probes for Combinatorial Immunotherapy and Photothermal Therapy. Cancer Treat Res Commun 2020; 25:100258. [PMID: 33307507 DOI: 10.1016/j.ctarc.2020.100258] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 11/16/2020] [Accepted: 11/28/2020] [Indexed: 12/21/2022]
Abstract
The application of gold nanoparticles in immunotherapy has emerged as one of the most effective therapeutic strategy for eradicating cancer by releasing antigens, oligonucleotides, adjuvants, immune-stimulating agents into the body. Gold nanoparticles are found to be a superior choice, for generating attack on oncogenic cells, due to their low toxicity, better target specificity, diagnostic capabilities, and enhanced cellular uptake rate. This review focuses on the efficiency of several functionalized gold nanoparticles of diverse shapes and sizes as delivery vehicles to desired target cells through effective immunotherapy, along with a brief discussion about photothermal therapy.
Collapse
Affiliation(s)
- Sanjay Kumar
- Department of Chemistry, Sri Venkateswara College, University of Delhi, Delhi, 110021
| | - Ayush Mongia
- Department of Chemistry, Sri Venkateswara College, University of Delhi, Delhi, 110021
| | - Shikha Gulati
- Department of Chemistry, Sri Venkateswara College, University of Delhi, Delhi, 110021
| | - Parinita Singh
- Department of Chemistry, Sri Venkateswara College, University of Delhi, Delhi, 110021
| | - Anchita Diwan
- Department of Chemistry, Sri Venkateswara College, University of Delhi, Delhi, 110021
| | - Shefali Shukla
- Department of Chemistry, Sri Venkateswara College, University of Delhi, Delhi, 110021
| |
Collapse
|
28
|
Pallares RM, Agbo P, Liu X, An DD, Gauny SS, Zeltmann SE, Minor AM, Abergel RJ. Engineering Mesoporous Silica Nanoparticles for Targeted Alpha Therapy against Breast Cancer. ACS APPLIED MATERIALS & INTERFACES 2020; 12:40078-40084. [PMID: 32805833 DOI: 10.1021/acsami.0c11051] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Targeted alpha therapy, where highly cytotoxic doses are delivered to tumor cells while sparing surrounding healthy tissue, has emerged as a promising treatment against cancer. Radionuclide conjugation with targeting vectors and dose confinement, however, are still limiting factors for the widespread application of this therapy. In the current study, we developed multifunctional silica nanoconstructs for targeted alpha therapy that show targeting capabilities against breast cancer cells, cytotoxic responses at therapeutic dosages, and enhanced clearance. The silica nanoparticles were conjugated to transferrin, which promoted particle accumulation in cancerous cells, and 3,4,3-LI(1,2-HOPO), a chelator with high selectivity and binding affinity for f-block elements. High cytotoxic effects were observed when the nanoparticles were loaded with 225Ac, a clinically relevant radioisotope. Lastly, in vivo studies in mice showed that the administration of radionuclides with nanoparticles enhanced their excretion and minimized their deposition in bones. These results highlight the potential of multifunctional silica nanoparticles as delivery systems for targeted alpha therapy and offer insight into design rules for the development of new nanotherapeutic agents.
Collapse
Affiliation(s)
- Roger M Pallares
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Peter Agbo
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Xin Liu
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Dahlia D An
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Stacey S Gauny
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Steven E Zeltmann
- National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
| | - Andrew M Minor
- National Center for Electron Microscopy, Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
| | - Rebecca J Abergel
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Nuclear Engineering, University of California, Berkeley, California 94720, United States
| |
Collapse
|
29
|
Lee K, Huang ZN, Mirkin CA, Odom TW. Endosomal Organization of CpG Constructs Correlates with Enhanced Immune Activation. NANO LETTERS 2020; 20:6170-6175. [PMID: 32787186 PMCID: PMC7609249 DOI: 10.1021/acs.nanolett.0c02536] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
This Letter describes how the endosomal organization of immunostimulatory nanoconstructs can tune the in vitro activation of macrophages. Nanoconstructs composed of gold nanoparticles conjugated with unmethylated cytosine-phosphate-guanine (CpG) oligonucleotides have distinct endosomal distributions depending on the surface curvature. Mixed-curvature constructs produce a relatively high percentage of hollow endosomes, where constructs accumulated primarily along the interior edges. These constructs achieved a higher level of toll-like receptor (TLR) 9 activation along with the enhanced secretion of proinflammatory cytokines and chemokines compared to constant-curvature constructs that aggregated mostly in the center of the endosomes. Our results underscore the importance of intraendosomal interactions in regulating immune responses and targeted delivery.
Collapse
Affiliation(s)
- Kwahun Lee
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
| | - Ziyin N. Huang
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
| | - Chad A. Mirkin
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
| | - Teri W. Odom
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
- Corresponding Author:
| |
Collapse
|
30
|
Wilson KL, Howard GP, Coatsworth H, Dinglasan RR, Mao HQ, Plebanski M. Biodegradable PLGA- b-PEG Nanoparticles Induce T Helper 2 (Th2) Immune Responses and Sustained Antibody Titers via TLR9 Stimulation. Vaccines (Basel) 2020; 8:E261. [PMID: 32485944 PMCID: PMC7349924 DOI: 10.3390/vaccines8020261] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/20/2020] [Accepted: 05/25/2020] [Indexed: 12/11/2022] Open
Abstract
Sustained immune responses, particularly antibody responses, are key for protection against many endemic infectious diseases. Antibody responses are often accompanied by T helper (Th) cell immunity. Herein we study small biodegradable poly (ethylene glycol)-b-poly (lactic-co-glycolic acid) nanoparticles (PEG-b-PLGA NPs, 25-50 nm) as antigen- or adjuvant-carriers. The antigen carrier function of PEG-b-PLGA NPs was compared against an experimental benchmark polystyrene nanoparticles (PS NPs, 40-50 nm), both conjugated with the model antigen ovalbumin (OVA-PS NPs, and OVA-PEG-b-PLGA NPs). The OVA-PEG-b-PLGA NPs induced sustained antibody responses to Day 120 after two immunizations. The OVA-PEG-b-PLGA NPs as a self-adjuvanting vaccine further induced IL-4 producing T-helper cells (Th2), but not IFN-γ producing T-cells (Th1). The PEG-b-PLGA NPs as a carrier for CpG adjuvant (CpG-PEG-b-PLGA NPs) were also tested as mix-in vaccine adjuvants comparatively for protein antigens, or for protein-conjugated to PS NPs or to PEG-b-PLGA NPs. While the addition of this adjuvant NP did not further increase T-cell responses, it improved the consistency of antibody responses across all immunization groups. Together these data support further development of PEG-b-PLGA NPs as a vaccine carrier, particularly where it is desired to induce Th2 immunity and achieve sustained antibody titers in the absence of affecting Th1 immunity.
Collapse
Affiliation(s)
- Kirsty L. Wilson
- School of Health and Biomedical Sciences, Royal Melbourne Institute of Technology (RMIT) University, Melbourne, Victoria 3084, Australia;
- Department of Immunology and Pathology, Monash University, Melbourne, Victoria 3181, Australia
| | - Gregory P. Howard
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA;
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Heather Coatsworth
- Emerging Pathogens Institute, Department of Infectious Diseases & Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA;
| | - Rhoel R. Dinglasan
- Emerging Pathogens Institute, Department of Infectious Diseases & Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA;
| | - Hai-Quan Mao
- Department of Biomedical Engineering, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA;
- Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Materials Science and Engineering, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Magdalena Plebanski
- School of Health and Biomedical Sciences, Royal Melbourne Institute of Technology (RMIT) University, Melbourne, Victoria 3084, Australia;
- Department of Immunology and Pathology, Monash University, Melbourne, Victoria 3181, Australia
| |
Collapse
|
31
|
Pallares RM, Abergel RJ. Transforming lanthanide and actinide chemistry with nanoparticles. NANOSCALE 2020; 12:1339-1348. [PMID: 31859321 DOI: 10.1039/c9nr09175k] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Lanthanides and actinides are used in a wide variety of applications, from energy production to life sciences. To address toxicity issues due to the chemical, and often radiological, properties of these elements, methods to quantify and recover them from industrial waste are necessary. When used in biomedicine, lanthanides and actinides are incorporated in compounds that show promising therapeutic and/or bioimaging properties, but lack robust strategies to target cancer and other pathologies. Furthermore, current decorporation protocols to respond to accidental actinide exposure rely on intravenous injections of soluble chelating agents, which are inefficient for treatment of inhaled radionuclides trapped in lungs. In recent years, nanoparticles have emerged as powerful tools in both industry and clinical settings. Because some inorganic nanoparticles are sensitive to external stimuli, such as light and magnetic fields, they can be used as building blocks for sensitive bioassays and separation techniques. In addition, nanoparticles can be functionalized with multiple ligands and act as carriers for selective delivery of therapeutic and contrast agents. This review summarizes and discusses recent progress on the use of nanoparticles in lanthanide and actinide chemistry. We examine different types of nanoparticles based on composition, functionalization, and properties, and we critically analyze their performance in a comparative mode. Our focus is two-pronged, including the nanoparticles free of lanthanides and actinides that are used for the detection, separation, or decorporation of f-block elements, as well as the nanoparticles that enhance the inherent properties of lanthanides and actinides for therapeutics, imaging and catalysis.
Collapse
Affiliation(s)
- Roger M Pallares
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
| | | |
Collapse
|
32
|
Pallares RM, Carter KP, Zeltmann SE, Tratnjek T, Minor AM, Abergel RJ. Selective Lanthanide Sensing with Gold Nanoparticles and Hydroxypyridinone Chelators. Inorg Chem 2020; 59:2030-2036. [PMID: 31971379 DOI: 10.1021/acs.inorgchem.9b03393] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The octadentate hydroxypyridinone chelator 3,4,3-LI(1,2-HOPO) is a promising therapeutic agent because of its high affinity for f-block elements and noncytotoxicity at medical dosages. The interaction between 3,4,3-LI(1,2-HOPO) and other biomedically relevant metals such as gold, however, has not been explored. Gold nanoparticles functionalized with chelators have demonstrated great potential in theranostics, yet thus far, no protocol that combines 3,4,3-LI(1,2-HOPO) and colloidal gold has been developed. Here, we characterize the solution thermodynamic properties of the complexes formed between 3,4,3-LI(1,2-HOPO) and Au3+ ions and demonstrate how under specific pH conditions the chelator promotes the growth of gold nanoparticles, acting as both reducing and stabilizing agent. 3,4,3-LI(1,2-HOPO) ligands on the nanoparticle surface remain active and selective toward f-block elements, as evidenced by gold nanoparticle selective aggregation. Finally, a new colorimetric assay capable of reaching the detection levels necessary for the quantification of lanthanides in waste from industrial processes is developed based on the inhibition of particle growth by lanthanides.
Collapse
Affiliation(s)
- Roger M Pallares
- Chemical Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Korey P Carter
- Chemical Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Steven E Zeltmann
- National Center for Electron Microscopy, Molecular Foundry , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Toni Tratnjek
- Chemical Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Andrew M Minor
- National Center for Electron Microscopy, Molecular Foundry , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.,Department of Materials Science and Engineering , University of California , Berkeley , California 94720 , United States
| | - Rebecca J Abergel
- Chemical Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.,Department of Nuclear Engineering , University of California , Berkeley , California 94720 , United States
| |
Collapse
|
33
|
Pallares RM, Thanh NTK, Su X. Quantifying the binding between proteins and open chromatin-like DNA sequences with gold nanorods. Chem Commun (Camb) 2019; 55:15041-15044. [PMID: 31696164 DOI: 10.1039/c9cc07511a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The binding of transcription factors to DNA is one of the main mechanisms in gene regulation. While transcription factors frequently bind to unwrapped long DNA sequences known as open chromatin structures, most bioassays that study protein-DNA binding rely on short oligonucleotide probes. In this work, we develop a gold nanorod-based colorimetric assay for the binding of transcription factors to DNA in long open chromatin-like structures. After the determination of the binding affinity and stoichiometry, we explored the effect of the probe length on the assay performance and compared it to other established techniques.
Collapse
Affiliation(s)
- Roger M Pallares
- Biophysics Group, Department of Physics and Astronomy, University College London, London, WC1E 6BT, UK.
| | | | | |
Collapse
|
34
|
Pallares RM, Thanh NTK, Su X. Sensing of circulating cancer biomarkers with metal nanoparticles. NANOSCALE 2019; 11:22152-22171. [PMID: 31555790 DOI: 10.1039/c9nr03040a] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The analysis of circulating cancer biomarkers, including cell-free and circulating tumor DNA, circulating tumor cells, microRNA and exosomes, holds promise in revolutionizing cancer diagnosis and prognosis using body fluid analysis, also known as liquid biopsy. To enable clinical application of these biomarkers, new analytical tools capable of detecting them in very low concentrations in complex sample matrixes are needed. Metal nanoparticles have emerged as extraordinary analytical scaffolds because of their unique optoelectronic properties and ease of functionalization. Hence, multiple analytical techniques have been developed based on these nanoparticles and their plasmonic properties. The aim of this review is to summarize and discuss the present development on the use of metal nanoparticles for the analysis of circulating cancer biomarkers. We examine how metal nanoparticles can be used as (1) analytical transducers in various sensing principles, such as aggregation induced colorimetric assays, plasmon resonance energy transfer, surface enhanced Raman spectroscopy, and refractive index sensing, and (2) signal amplification elements in surface plasmon resonance spectroscopy and electrochemical detection. We critically discuss the clinical relevance of each category of circulating biomarkers, followed by a thorough analysis of how these nanoparticle-based designs have overcome some of the main challenges that gold standard analytical techniques currently face, and what new directions the field may take in the future.
Collapse
Affiliation(s)
- Roger M Pallares
- Biophysics Group, Department of Physics and Astronomy, University College London, London, WC1E 6BT, UK.
| | | | | |
Collapse
|
35
|
Han S, Wang W, Wang S, Wang S, Ju R, Pan Z, Yang T, Zhang G, Wang H, Wang L. Multifunctional biomimetic nanoparticles loading baicalin for polarizing tumor-associated macrophages. NANOSCALE 2019; 11:20206-20220. [PMID: 31621735 DOI: 10.1039/c9nr03353j] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Immunosuppression and immune tolerance lead tumor cells to evade immune system surveillance and weaken drug efficacy. The presence of various immunosuppressive cells in the tumor microenvironment, especially tumor-associated macrophages (TAMs), has been shown to be a driving force in tumor initiation and development. Reversion of the TAM phenotype is an effective way to induce a subsequent antitumor immune response. In this study, we developed baicalin-loaded poly(d,l-lactide-co-glycolide) (PLGA) nanoparticles containing an antigenic peptide (Hgp 10025-33, Hgp) and a toll-like receptor 9 agonist (CpG). The nanoparticles were further coated with a galactose-inserted erythrocyte membrane, which actively targeted the TAMs. The TAM polarization and tumor treatment effectiveness of the nanoparticles were evaluated. The biomimetic nanoparticles showed enhanced cell uptake in vitro and targeted effects in vivo. In addition, compared with baicalin-loaded PLGA-NPs (B@NPs), the biomimetic nanoparticles, such as Hgp/B@NPs-CpG and NPs@RBC-Gala, significantly polarized the TAMs such that they changed from the M2 type to the M1 type both in vitro and in vivo. Subsequently, the infiltration of CD4+ T and CD8+ T cells into tumor sites after being induced by the biomimetic nanoparticles was greatly increased, which suggested a significant enhancement of the immune activation effect and T cell response. In addition, the activation of the T cells and induction of the CTL responses effectively suppressed melanoma tumor growth in vivo. In conclusion, the biomimetic nanoparticles effectively reversed the TAM phenotype from M2 to M1, which further improved the tumor immune microenvironment and promoted tumor immunotherapy. These results suggested that the TAM-targeted biomimetic drug delivery system had the potential to reverse the phenotypes of TAMs contributing to reverse the immunosuppressive tumor microenvironment and promote tumor treatment.
Collapse
Affiliation(s)
- Shulan Han
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, P. R. China. and Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China.
| | - Wenjie Wang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, P. R. China.
| | - Shengfang Wang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, P. R. China.
| | - Shuo Wang
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China.
| | - Ruijun Ju
- Beijing Institute of Petrochemical Technology, Beijing 102617, P.R. China
| | - Zihao Pan
- Beijing Institute of Petrochemical Technology, Beijing 102617, P.R. China
| | - Tingyuan Yang
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China.
| | - Guifeng Zhang
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China.
| | - Huimei Wang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, P. R. China.
| | - Lianyan Wang
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, P.R. China.
| |
Collapse
|
36
|
Ke X, Howard GP, Tang H, Cheng B, Saung MT, Santos JL, Mao HQ. Physical and chemical profiles of nanoparticles for lymphatic targeting. Adv Drug Deliv Rev 2019; 151-152:72-93. [PMID: 31626825 DOI: 10.1016/j.addr.2019.09.005] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 09/03/2019] [Accepted: 09/24/2019] [Indexed: 12/14/2022]
Abstract
Nanoparticles (NPs) have been gaining prominence as delivery vehicles for modulating immune responses to improve treatments against cancer and autoimmune diseases, enhancing tissue regeneration capacity, and potentiating vaccination efficacy. Various engineering approaches have been extensively explored to control the NP physical and chemical properties including particle size, shape, surface charge, hydrophobicity, rigidity and surface targeting ligands to modulate immune responses. This review examines a specific set of physical and chemical characteristics of NPs that enable efficient delivery targeted to secondary lymphoid tissues, specifically the lymph nodes and immune cells. A critical analysis of the structure-property-function relationship will facilitate further efforts to engineer new NPs with unique functionalities, identify novel utilities, and improve the clinical translation of NP formulations for immunotherapy.
Collapse
|
37
|
Pallares RM, Choo P, Cole LE, Mirkin CA, Lee A, Odom TW. Manipulating Immune Activation of Macrophages by Tuning the Oligonucleotide Composition of Gold Nanoparticles. Bioconjug Chem 2019; 30:2032-2037. [PMID: 31243978 PMCID: PMC6657697 DOI: 10.1021/acs.bioconjchem.9b00316] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This paper describes how the ligand shell containing immunostimulatory oligonucleotides surrounding gold nanoparticles affects the in vitro activation of macrophages. Nanoconstructs with similar ligand densities but different oligonucleotide compositions (from 0% to 100% immune-active cytosine-phosphate-guanine, CpG) were compared. Maximum immunostimulation was achieved with CpG content as low as 5% (with total oligonucleotide surface coverage remaining constant), correlating to high levels of antitumor cytokine release and low levels of cancer-promoting ones. Independent of CpG content, gold nanoparticles with low oligonucleotide densities exhibit poor cellular uptake, leading to insignificant immunostimulation and cytokine release. By identifying effects of ligand shell composition on macrophage activation, we can inform the design rules of therapeutic nanoconstructs to achieve specific immune responses.
Collapse
Affiliation(s)
- Roger M. Pallares
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Priscilla Choo
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Lisa E. Cole
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Chad A. Mirkin
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
| | - Andrew Lee
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Teri W. Odom
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
| |
Collapse
|
38
|
Hartshorn CM, Russell LM, Grodzinski P. National Cancer Institute Alliance for nanotechnology in cancer-Catalyzing research and translation toward novel cancer diagnostics and therapeutics. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2019; 11:e1570. [PMID: 31257722 DOI: 10.1002/wnan.1570] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 05/23/2019] [Indexed: 12/22/2022]
Abstract
Nanotechnology has been a burgeoning research field, which is finding compelling applications in several practical areas of everyday life. It has provided novel, paradigm shifting solutions to medical problems and particularly to cancer. In order to accelerate integration of nanotechnology into cancer research and oncology, the National Cancer Institute (NCI) of the National Institutes of Health (NIH) established the NCI Alliance for Nanotechnology in Cancer program in 2005. This effort brought together scientists representing physical sciences, chemistry, and engineering working at the nanoscale with biologists and clinicians working on cancer to form a uniquely multidisciplinary cancer nanotechnology research community. The last 14 years of the program have produced a remarkable body of scientific discovery and demonstrated its utility to the development of practical cancer interventions. This paper takes stock of how the Alliance program influenced melding of disparate research disciplines into the field of nanomedicine and cancer nanotechnology, has been highly productive in the scientific arena, and produced a mechanism of seamless transfer of novel technologies developed in academia to the clinical and commercial space. This article is categorized under: Toxicology and Regulatory Issues in Nanomedicine > Regulatory and Policy Issues in Nanomedicine Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease Diagnostic Tools > in vivo Nanodiagnostics and Imaging.
Collapse
Affiliation(s)
- Christopher M Hartshorn
- Nanodelivery Systems and Devices Branch, Cancer Imaging Program, National Cancer Institute, National Institutes of Health, Rockville, Maryland
| | - Luisa M Russell
- Nanodelivery Systems and Devices Branch, Cancer Imaging Program, National Cancer Institute, National Institutes of Health, Rockville, Maryland
| | - Piotr Grodzinski
- Nanodelivery Systems and Devices Branch, Cancer Imaging Program, National Cancer Institute, National Institutes of Health, Rockville, Maryland
| |
Collapse
|
39
|
Chiu YTE, Li H, Choi CHJ. Progress toward Understanding the Interactions between DNA Nanostructures and the Cell. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1805416. [PMID: 30786143 DOI: 10.1002/smll.201805416] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/26/2019] [Indexed: 05/28/2023]
Abstract
Advances in DNA nanotechnology empower the programmable assembly of DNA building blocks (oligonucleotides and plasmids) into DNA nanostructures with precise architectural control. As DNA nanostructures are biocompatible and can naturally enter mammalian cells without the aid of transfection agents, they have found numerous biological or biomedical applications as delivery carriers of therapeutic and imaging cargoes into mammalian cells for at least a decade. Nevertheless, mechanistic studies on how DNA nanostructures interact with cells have remained limited and incomprehensive until 2-3 years ago. This Review presents the recent progress in elucidating the "cell-nano" interactions of DNA nanostructures, with an emphasis on three key classes of structures commonly utilized in intracellular applications: tile-based structures, origami-based structures, and nanoparticle-templated structures. Structural parameters of DNA nanostructures and strategies of biochemical modification for promoting intracellular delivery are discussed. Biological mechanisms for cellular uptake, including specific pathways and receptors involved, are outlined. Routes of intracellular trafficking and degradation, together with strategies for re-directing their trafficking, are delineated. This Review concludes with several aspects of the "bio-nano" interactions of DNA nanostructures that warrant future investigations.
Collapse
Affiliation(s)
- Yee Ting Elaine Chiu
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Huize Li
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Chung Hang Jonathan Choi
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| |
Collapse
|
40
|
Zeng Q, Jewell CM. Directing toll-like receptor signaling in macrophages to enhance tumor immunotherapy. Curr Opin Biotechnol 2019; 60:138-145. [PMID: 30831487 DOI: 10.1016/j.copbio.2019.01.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 12/06/2018] [Accepted: 01/21/2019] [Indexed: 12/14/2022]
Abstract
A key challenge facing immunotherapy is poor infiltration of T cells into tumors, along with suppression of cells reaching these sites. However, macrophages make up a majority of immune cell infiltrates into tumors, creating natural targets for immunotherapies able to direct macrophages away from tumor-supportive functions and toward anti-tumor phenotypes. Recent studies demonstrate that toll-like receptors (TLRs) - pathways that quickly trigger early immune responses - play an important role in polarizing macrophages. Here, we present emerging ways in which TLR signaling is being manipulated in macrophages to create new opportunities for cancer immunotherapy. In particular, we discuss approaches to deliver TLR agonists, to leverage biomaterials in these therapies, and to couple TLR-based approaches with other frontline treatments as combination cancer therapies.
Collapse
Affiliation(s)
- Qin Zeng
- Fischell Department of Bioengineering, University of Maryland, 8278 Paint Branch Drive, College Park, MD 20742, USA
| | - Christopher M Jewell
- Fischell Department of Bioengineering, University of Maryland, 8278 Paint Branch Drive, College Park, MD 20742, USA; Robert E. Fischell Institute for Biomedical Devices, 8278 Paint Branch Drive, College Park, MD 20742, USA; United States Department of Veterans Affairs, Maryland VA Health Care System, 10 North Greene Street, Baltimore, MD 21201, USA; Department of Microbiology and Immunology, University of Maryland School of Medicine, 685 West Baltimore Street, Baltimore, MD 21201, USA; Marlene and Stewart Greenebaum Cancer Center, 22 South Greene Street, Baltimore, MD 21201, USA.
| |
Collapse
|