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Guido V, Olivieri PH, Brito ML, Prezoto BC, Martinez DST, Oliva MLV, Sousa AA. Stealth and Biocompatible Gold Nanoparticles through Surface Coating with a Zwitterionic Derivative of Glutathione. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:12167-12178. [PMID: 38808371 PMCID: PMC11171461 DOI: 10.1021/acs.langmuir.4c01123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/11/2024] [Accepted: 05/21/2024] [Indexed: 05/30/2024]
Abstract
Gold nanoparticles (AuNPs) hold promise in biomedicine, but challenges like aggregation, protein corona formation, and insufficient biocompatibility must be thoroughly addressed before advancing their clinical applications. Designing AuNPs with specific protein corona compositions is challenging, and strategies for corona elimination, such as coating with polyethylene glycol (PEG), have limitations. In this study, we introduce a commercially available zwitterionic derivative of glutathione, glutathione monoethyl ester (GSHzwt), for the surface coating of colloidal AuNPs. Particles coated with GSHzwt were investigated alongside four other AuNPs coated with various ligands, including citrate ions, tiopronin, glutathione, cysteine, and PEG. We then undertook a head-to-head comparison of these AuNPs to assess their behavior in biological fluid. GSHzwt-coated AuNPs exhibited exceptional resistance to aggregation and protein adsorption. The particles could also be readily functionalized with biotin and interact with streptavidin receptors in human plasma. Additionally, they exhibited significant blood compatibility and noncytotoxicity. In conclusion, GSHzwt provides a practical and easy method for the surface passivation of AuNPs, creating "stealth" particles for potential clinical applications.
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Affiliation(s)
- Vinicius
S. Guido
- Department
of Biochemistry, Federal University of São
Paulo, São
Paulo 04044-020, Brazil
| | - Paulo H. Olivieri
- Department
of Biochemistry, Federal University of São
Paulo, São
Paulo 04044-020, Brazil
| | - Milena L. Brito
- Brazilian
Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo 13083-100, Brazil
| | - Benedito C. Prezoto
- Laboratory
of Pharmacology, the Butantan Institute, São Paulo 05503-900, Brazil
| | - Diego S. T. Martinez
- Brazilian
Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo 13083-100, Brazil
| | - Maria Luiza V. Oliva
- Department
of Biochemistry, Federal University of São
Paulo, São
Paulo 04044-020, Brazil
| | - Alioscka A. Sousa
- Department
of Biochemistry, Federal University of São
Paulo, São
Paulo 04044-020, Brazil
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2
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Gao W, Li JJ, Shi J, Lan H, Guo Y, Fu D. Ångstrom-scale gold particles loaded with alendronate via alpha-lipoic acid alleviate bone loss in osteoporotic mice. J Nanobiotechnology 2024; 22:212. [PMID: 38689294 PMCID: PMC11059737 DOI: 10.1186/s12951-024-02466-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 04/04/2024] [Indexed: 05/02/2024] Open
Abstract
Osteoporosis is a highly prevalent metabolic disease characterized by low systemic bone mass and deterioration of bone microarchitecture, resulting in reduced bone strength and increased fracture risk. Current treatment options for osteoporosis are limited by factors such as efficacy, cost, availability, side effects, and acceptability to patients. Gold nanoparticles show promise as an emerging osteoporosis therapy due to their osteogenic effects and ability to allow therapeutic delivery but have inherent constraints, such as low specificity and the potential for heavy metal accumulation in the body. This study reports the synthesis of ultrasmall gold particles almost reaching the Ångstrom (Ång) dimension. The antioxidant alpha-lipoic acid (LA) is used as a dispersant and stabilizer to coat Ångstrom-scale gold particles (AuÅPs). Alendronate (AL), an amino-bisphosphonate commonly used in drug therapy for osteoporosis, is conjugated through LA to the surface of AuÅPs, allowing targeted delivery to bone and enhancing antiresorptive therapeutic effects. In this study, alendronate-loaded Ångstrom-scale gold particles (AuÅPs-AL) were used for the first time to promote osteogenesis and alleviate bone loss through regulation of the WNT signaling pathway, as shown through in vitro tests. The in vivo therapeutic effects of AuÅPs-AL were demonstrated in an established osteoporosis mouse model. The results of Micro-computed Tomography, histology, and tartrate-resistant acid phosphatase staining indicated that AuÅPs-AL significantly improved bone density and prevented bone loss, with no evidence of nanoparticle-associated toxicity. These findings suggest the possible future application of AuÅPs-AL in osteoporosis therapy and point to the potential of developing new approaches for treating metabolic bone diseases using Ångstrom-scale gold particles.
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Affiliation(s)
- Weihang Gao
- Department of Orthopaedics, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, P. R. China
- Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430077, China
| | - Jiao Jiao Li
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Jingyu Shi
- Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430077, China
| | - Hongbing Lan
- Tongji School of Pharmacy, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yuanyuan Guo
- Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430077, China.
- Hubei Key Laboratory of Metabolic Abnormalities and Vascular Aging, Huazhong University of Science and Technology, Wuhan, 430077, China.
| | - Dehao Fu
- Department of Orthopaedics, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, P. R. China.
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3
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Sokolovska L, Isaguliants M, Buonaguro FM. Proceedings of the Online Conference "Vaccines and Vaccination during and Post COVID Pandemics" (7-9 December 2022). Vaccines (Basel) 2023; 11:1175. [PMID: 37514990 PMCID: PMC10383049 DOI: 10.3390/vaccines11071175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/30/2023] Open
Abstract
The COVID-19 pandemic put focus on various aspects of vaccine research and development. These include mass vaccination strategies, vaccination compliance and hesitancy, acceptance of novel vaccine approaches, preclinical and animal models used to assess vaccine safety and efficacy, and many other related issues. These issues were addressed by the international online conference "Vaccines and Vaccination During and Post COVID Pandemics" (VAC&VAC 2022) held on the platform of Riga Stradins University, Riga, Latvia. Conference was supported by the International Society for Vaccines, the National Cancer Institute "Fondazione Pascale" (Naples, Italy), and the scientific journal VACCINES (mdpi). VAC&VAC 2022 attracted nearly 150 participants from 14 countries. This report summarizes conference presentations and their discussion. Sessions covered the topics of (1) COVID-19 vaccine development, evaluation, and attitude towards these vaccines, (2) HPV and cancer vaccines, (3) progress and challenges of HIV vaccine development, (4) new and re-emerging infectious threats, and (5) novel vaccine vehicles, adjuvants, and carriers. Each session was introduced by a plenary lecture from renowned experts from leading research institutions worldwide. The conference also included sessions on research funding and grant writing and an early career researcher contest in which the winners received monetary awards and a chance to publish their results free of charge in the special issue of VACCINES covering the meeting.
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Affiliation(s)
- Liba Sokolovska
- Institute of Microbiology and Virology, Riga Stradins University, LV-1007 Riga, Latvia
| | - Maria Isaguliants
- Institute of Microbiology and Virology, Riga Stradins University, LV-1007 Riga, Latvia
| | - Franco M Buonaguro
- Experimental Oncology Department, National Cancer Institute 'Fondazione Pascale', 80131 Naples, Italy
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4
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Callmann CE, Vasher MK, Das A, Kusmierz CD, Mirkin CA. In Vivo Behavior of Ultrasmall Spherical Nucleic Acids. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300097. [PMID: 36905236 PMCID: PMC10272074 DOI: 10.1002/smll.202300097] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/09/2023] [Indexed: 05/10/2023]
Abstract
The biological properties of spherical nucleic acids (SNAs) are largely independent of nanoparticle core identity but significantly affected by oligonucleotide surface density. Additionally, the payload-to-carrier (i.e., DNA-to-nanoparticle) mass ratio of SNAs is inversely proportional to core size. While SNAs with many core types and sizes have been developed, all in vivo analyses of SNA behavior have been limited to cores >10 nm in diameter. However, "ultrasmall" nanoparticle constructs (<10 nm diameter) can exhibit increased payload-to-carrier ratios, reduced liver accumulation, renal clearance, and enhanced tumor infiltration. Therefore, we hypothesized that SNAs with ultrasmall cores exhibit SNA-like properties, but with in vivo behavior akin to traditional ultrasmall nanoparticles. To investigate, we compared the behavior of SNAs with 1.4-nm Au102 nanocluster cores (AuNC-SNAs) and SNAs with 10-nm gold nanoparticle cores (AuNP-SNAs). Significantly, AuNC-SNAs possess SNA-like properties (e.g., high cellular uptake, low cytotoxicity) but show distinct in vivo behavior. When intravenously injected in mice, AuNC-SNAs display prolonged blood circulation, lower liver accumulation, and higher tumor accumulation than AuNP-SNAs. Thus, SNA-like properties persist at the sub-10-nm length scale and oligonucleotide arrangement and surface density are responsible for the biological properties of SNAs. This work has implications for the design of new nanocarriers for therapeutic applications.
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Affiliation(s)
- Cassandra E Callmann
- Department of Chemistry, International Institute for Nanotechnology, Northwestern University, Evanston, IL, 60208, USA
| | - Matthew K Vasher
- Department of Biomedical Engineering, International Institute for Nanotechnology, Northwestern University, Evanston, IL, 60208, USA
| | - Anindita Das
- Department of Chemistry, International Institute for Nanotechnology, Northwestern University, Evanston, IL, 60208, USA
| | - Caroline D Kusmierz
- Department of Chemistry, International Institute for Nanotechnology, Northwestern University, Evanston, IL, 60208, USA
| | - Chad A Mirkin
- Department of Chemistry, International Institute for Nanotechnology, Northwestern University, Evanston, IL, 60208, USA
- Department of Biomedical Engineering, International Institute for Nanotechnology, Northwestern University, Evanston, IL, 60208, USA
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5
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Wang Z, You T, Cai C, Su Q, Cheng J, Xiao J, Duan X. Biomimetic Gold Nanostructure with a Virus-like Topological Surface for Enhanced Antigen Cross-Presentation and Antitumor Immune Response. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 36897565 DOI: 10.1021/acsami.2c21028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The internalization of antigens by dendritic cells (DCs) is the initial critical step for vaccines to activate the immune response; however, the systemic delivery of antigens into DCs is hampered by various technical challenges. Here we show that a virus-like gold nanostructure (AuNV) can effectively bind to and be internalized by DCs due to its biomimetic topological morphology, thereby significantly promoting the maturation of DCs and the cross-presentation of the model antigen ovalbumin (OVA). In vivo experiments demonstrate that AuNV efficiently delivers OVA to draining lymph nodes and significantly inhibits the growth of MC38-OVA tumors, generating a ∼80% decrease in tumor volume. Mechanistic studies reveal that the AuNV-OVA vaccine induces a remarkable increase in the rate of maturation of DCs, OVA presentation, and CD4+ and CD8+ T lymphocyte populations in both lymph node and tumor and an obvious decrease in myeloid-derived suppressor cells and regulatory T cell populations in spleen. The good biocompatibility, strong adjuvant activity, enhanced uptake of DCs, and improved T cell activation make AuNV a promising antigen delivery platform for vaccine development.
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Affiliation(s)
- Zhenyu Wang
- Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Tingting You
- Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Chengyuan Cai
- Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Qianyi Su
- Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jinmei Cheng
- Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jisheng Xiao
- Department of Cardiology, Heart Center, Zhujiang Hospital, Southern Medical University; Department of Pharmacy, Zhujiang Hospital, Southern Medical University; Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease; Translational Medicine Research Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, China
| | - Xiaopin Duan
- Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
- Experimental Education/Administration Center, School of Basic Medical Science, Southern Medical University, Guangzhou 510515, China
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6
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Ganguly K, Espinal MM, Dutta SD, Patel DK, Patil TV, Luthfikasari R, Lim* KT. Multifunctional 3D platforms for rapid hemostasis and wound healing: Structural and functional prospects at biointerfaces. Int J Bioprint 2022; 9:648. [PMID: 36844240 PMCID: PMC9947489 DOI: 10.18063/ijb.v9i1.648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 08/29/2022] [Indexed: 12/05/2022] Open
Abstract
354Fabrication of multifunctional hemostats is indispensable against chronic blood loss and accelerated wound healing. Various hemostatic materials that aid wound repair or rapid tissue regeneration has been developed in the last 5 years. This review provides an overview of the three-dimensional (3D) hemostatic platforms designed through the latest technologies like electrospinning, 3D printing, and lithography, solely or in combination, for application in rapid wound healing. We critically discuss the pivotal role of micro/nano-3D topography and biomaterial properties in mediating rapid blood clots and healing at the hemostat-biointerface. We also highlight the advantages and limitations of the designed 3D hemostats. We anticipate that this review will guide the fabrication of smart hemostats of the future for tissue engineering applications.
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Affiliation(s)
- Keya Ganguly
- Department of Biosystems Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Maria Mercedes Espinal
- Department of Biosystems Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Sayan Deb Dutta
- Department of Biosystems Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Dinesh K. Patel
- Institute of Forest Science, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Tejal V. Patil
- Department of Biosystems Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea,Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Rachmi Luthfikasari
- Department of Biosystems Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Ki-Taek Lim*
- Department of Biosystems Engineering, Kangwon National University, Chuncheon 24341, Republic of Korea,Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341, Republic of Korea,Institute of Forest Science, Kangwon National University, Chuncheon 24341, Republic of Korea, Corresponding author: Ki-Taek Lim ()
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7
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Fusco L, Gazzi A, Shuck CE, Orecchioni M, Alberti D, D'Almeida SM, Rinchai D, Ahmed E, Elhanani O, Rauner M, Zavan B, Grivel JC, Keren L, Pasqual G, Bedognetti D, Ley K, Gogotsi Y, Delogu LG. Immune Profiling and Multiplexed Label-Free Detection of 2D MXenes by Mass Cytometry and High-Dimensional Imaging. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2205154. [PMID: 36207284 PMCID: PMC10915970 DOI: 10.1002/adma.202205154] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/22/2022] [Indexed: 06/16/2023]
Abstract
There is a critical unmet need to detect and image 2D materials within single cells and tissues while surveying a high degree of information from single cells. Here, a versatile multiplexed label-free single-cell detection strategy is proposed based on single-cell mass cytometry by time-of-flight (CyTOF) and ion-beam imaging by time-of-flight (MIBI-TOF). This strategy, "Label-free sINgle-cell tracKing of 2D matErials by mass cytometry and MIBI-TOF Design" (LINKED), enables nanomaterial detection and simultaneous measurement of multiple cell and tissue features. As a proof of concept, a set of 2D materials, transition metal carbides, nitrides, and carbonitrides (MXenes), is selected to ensure mass detection within the cytometry range while avoiding overlap with more than 70 currently available tags, each able to survey multiple biological parameters. First, their detection and quantification in 15 primary human immune cell subpopulations are demonstrated. Together with the detection, mass cytometry is used to capture several biological aspects of MXenes, such as their biocompatibility and cytokine production after their uptake. Through enzymatic labeling, MXenes' mediation of cell-cell interactions is simultaneously evaluated. In vivo biodistribution experiments using a mixture of MXenes in mice confirm the versatility of the detection strategy and reveal MXene accumulation in the liver, blood, spleen, lungs, and relative immune cell subtypes. Finally, MIBI-TOF is applied to detect MXenes in different organs revealing their spatial distribution. The label-free detection of 2D materials by mass cytometry at the single-cell level, on multiple cell subpopulations and in multiple organs simultaneously, will enable exciting new opportunities in biomedicine.
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Affiliation(s)
- Laura Fusco
- ImmuneNano Laboratory, Department of Biomedical Sciences, University of Padua, Padua, 35129, Italy
- A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
- Human Immunology Division, Translational Medicine Department, Sidra Medicine, Doha, 26999, Qatar
| | - Arianna Gazzi
- ImmuneNano Laboratory, Department of Biomedical Sciences, University of Padua, Padua, 35129, Italy
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, 34127, Italy
| | - Christopher E Shuck
- A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
| | | | - Dafne Alberti
- Laboratory of Synthetic Immunology, Oncology and Immunology Section, Department of Surgery Oncology and Gastroenterology, University of Padua, Padua, 35124, Italy
| | - Sènan Mickael D'Almeida
- Flow Cytometry Core Facility, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, 1015, Switzerland
| | - Darawan Rinchai
- Human Immunology Division, Translational Medicine Department, Sidra Medicine, Doha, 26999, Qatar
| | - Eiman Ahmed
- Human Immunology Division, Translational Medicine Department, Sidra Medicine, Doha, 26999, Qatar
| | - Ofer Elhanani
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Martina Rauner
- Department of Medicine III, Center for Healthy Aging, Technical University Dresden, 01307, Dresden, Germany
| | - Barbara Zavan
- Department of Medical Sciences, University of Ferrara, Ferrara, 44121, Italy
- Maria Cecilia Hospital, GVM Care & Research, Ravenna, 48033, Italy
| | | | - Leeat Keren
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Giulia Pasqual
- Laboratory of Synthetic Immunology, Oncology and Immunology Section, Department of Surgery Oncology and Gastroenterology, University of Padua, Padua, 35124, Italy
| | - Davide Bedognetti
- Human Immunology Division, Translational Medicine Department, Sidra Medicine, Doha, 26999, Qatar
- Department of Internal Medicine and Medical Specialties, University of Genoa, Genoa, 16132, Italy
- College of Health and Life Sciences, Hamad Bin Khalifa University, Doha, 34110, Qatar
| | - Klaus Ley
- La Jolla Institute for Immunology, San Diego, CA, 92037, USA
- Immunology Center of Georgia (IMMCG), Augusta University, Augusta, GA, 30912, USA
| | - Yury Gogotsi
- A. J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
| | - Lucia Gemma Delogu
- ImmuneNano Laboratory, Department of Biomedical Sciences, University of Padua, Padua, 35129, Italy
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8
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Nanomedicine: controlling nanoparticle clearance for translational success. Trends Pharmacol Sci 2022; 43:709-711. [PMID: 35659416 DOI: 10.1016/j.tips.2022.05.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 04/08/2022] [Accepted: 05/09/2022] [Indexed: 11/23/2022]
Abstract
Achieving complete nanoparticle (NP) clearance is a key consideration in the design of safe and translatable nanomedicines. Renal-clearable nano formulations must encompass the beneficial nanoscale functionalities whilst exhibiting clearance profiles like those of small-molecule therapeutics. Recent developments in the field have enabled the growth of novel renal-clearable NPs with transformable sizes that take advantage of alternative clearance mechanisms to achieve controlled and efficient renal excretion to improve potential clinical translation.
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9
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Popov AB, Melle F, Linnane E, González-López C, Ahmed I, Parshad B, Franck CO, Rahmoune H, Richards FM, Muñoz-Espín D, Jodrell DI, Fairen-Jimenez D, Fruk L. Size-tuneable and immunocompatible polymer nanocarriers for drug delivery in pancreatic cancer. NANOSCALE 2022; 14:6656-6669. [PMID: 35438701 PMCID: PMC9070568 DOI: 10.1039/d2nr00864e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/28/2022] [Indexed: 06/14/2023]
Abstract
Nanocarriers have emerged as one of the most promising approaches for drug delivery. Although several nanomaterials have been approved for clinical use, the translation from lab to clinic remains challenging. However, by implementing rational design strategies and using relevant models for their validation, these challenges are being addressed. This work describes the design of novel immunocompatible polymer nanocarriers made of melanin-mimetic polydopamine and Pluronic F127 units. The nanocarrier preparation was conducted under mild conditions, using a highly reproducible method that was tuned to provide a range of particle sizes (<100 nm) without changing the composition of the carrier. A set of in vitro studies were conducted to provide a comprehensive assessment of the effect of carrier size (40, 60 and 100 nm) on immunocompatibility, viability and uptake into different pancreatic cancer cells varying in morphological and phenotypic characteristics. Pancreatic cancer is characterised by poor treatment efficacy and no improvement in patient survival in the last 40 years due to the complex biology of the solid tumour. High intra- and inter-tumoral heterogeneity and a dense tumour microenvironment limit diffusion and therapeutic response. The Pluronic-polydopamine nanocarriers were employed for the delivery of irinotecan active metabolite SN38, which is used in the treatment of pancreatic cancer. Increased antiproliferative effect was observed in all tested cell lines after administration of the drug encapsulated within the carrier, indicating the system's potential as a therapeutic agent for this hard-to-treat cancer.
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Affiliation(s)
- Andrea Bistrović Popov
- BioNano Engineering Lab, Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, UK.
| | - Francesca Melle
- The Adsorption & Advanced Materials Laboratory (A2ML), Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, UK
| | - Emily Linnane
- The Adsorption & Advanced Materials Laboratory (A2ML), Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, UK
| | - Cristina González-López
- BioNano Engineering Lab, Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, UK.
- CRUK Cambridge Centre Early Detection Program, Department of Oncology, Hutchison/MRC Research Centre, University of Cambridge, Cambridge CB2 0RE, UK
| | - Ishtiaq Ahmed
- BioNano Engineering Lab, Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, UK.
| | - Badri Parshad
- BioNano Engineering Lab, Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, UK.
| | - Christoph O Franck
- BioNano Engineering Lab, Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, UK.
| | - Hassan Rahmoune
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, UK
| | - Frances M Richards
- Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Cambridge CB2 0RE, UK
- Translational Medicine, Oncology R&D, Astra Zeneca, Cambridge CB4 0WG, UK
| | - Daniel Muñoz-Espín
- CRUK Cambridge Centre Early Detection Program, Department of Oncology, Hutchison/MRC Research Centre, University of Cambridge, Cambridge CB2 0RE, UK
| | - Duncan I Jodrell
- Cancer Research UK Cambridge Institute, University of Cambridge, Li Ka Shing Centre, Cambridge CB2 0RE, UK
- Department of Oncology, University of Cambridge, Hutchison/MRC Research Centre, Cambridge Biomedical Campus, Cambridge, CB2 0XZ, UK
| | - David Fairen-Jimenez
- The Adsorption & Advanced Materials Laboratory (A2ML), Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, UK
| | - Ljiljana Fruk
- BioNano Engineering Lab, Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, UK.
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