1
|
Huang Z, Zhou Z, Ye Q, Li X, Wang T, Li J, Dong W, Guo R, Ding Y, Xue H, Ding H, Lau CH. Effects of Different Surface Functionalizations of Silica Nanoparticles on Mesenchymal Stem Cells. ACS APPLIED BIO MATERIALS 2024; 7:3295-3305. [PMID: 38701399 DOI: 10.1021/acsabm.4c00241] [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: 05/05/2024]
Abstract
Physicochemical properties of nanoparticles, such as particle size, surface charge, and particle shape, have a significant impact on cell activities. However, the effects of surface functionalization of nanoparticles with small chemical groups on stem cell behavior and function remain understudied. Herein, we incorporated different chemical functional groups (amino, DETA, hydroxyl, phosphate, and sulfonate with charges of +9.5, + 21.7, -14.1, -25.6, and -37.7, respectively) to the surface of inorganic silica nanoparticles. To trace their effects on mesenchymal stem cells (MSCs) of rat bone marrow, these functionalized silica nanoparticles were used to encapsulate Rhodamine B fluorophore dye. We found that surface functionalization with positively charged and short-chain chemical groups facilitates cell internalization and retention of nanoparticles in MSCs. The endocytic pathway differed among functionalized nanoparticles when tested with ion-channel inhibitors. Negatively charged nanoparticles mainly use lysosomal exocytosis to exit cells, while positively charged nanoparticles can undergo endosomal escape to avoid scavenging. The cytotoxic profiles of these functionalized silica nanoparticles are still within acceptable limits and tolerable. They exerted subtle effects on the actin cytoskeleton and migration ability. Last, phosphate-functionalized nanoparticles upregulate osteogenesis-related genes and induce osteoblast-like morphology, implying that it can direct MSCs lineage specification for bone tissue engineering. Our study provides insights into the rational design of biomaterials for effective drug delivery and regenerative medicine.
Collapse
Affiliation(s)
- Zhihao Huang
- Department of Biology, College of Science, Shantou University, 515063 Shantou, Guangdong, China
| | - Zhongqi Zhou
- Pediatric Hematology Laboratory, Division of Hematology/Oncology, Department of Pediatrics, The Seventh Affiliated Hospital of Sun Yat-Sen University, 518107 Shenzhen, Guangdong, China
| | - Qiaoyuan Ye
- Department of Dermatology, The Second Clinical Medical College, Guangdong Medical University, 523808 Dongguan, Guangdong, China
| | - Xiaoyan Li
- Center for Vascular Surgery and Wound Care, Jinshan Hospital, Fudan University, 200540 Shanghai, China
| | - Tao Wang
- Department of Biology, College of Science, Shantou University, 515063 Shantou, Guangdong, China
| | - Jiaqi Li
- Department of Biology, College of Science, Shantou University, 515063 Shantou, Guangdong, China
| | - Wenjiao Dong
- Department of Epidemiology and Health Statistics, School of Public Health, Guangdong Medical University, 523808 Dongguan, Guangdong, China
| | - Rui Guo
- Animal Husbandry and Veterinary Institute, Hubei Academy of Agricultural Science, 430064 Wuhan, Hubei, China
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis, Ministry of Agriculture, 430064 Wuhan, Hubei, China
| | - Yuanlin Ding
- Department of Epidemiology and Health Statistics, School of Public Health, Guangdong Medical University, 523808 Dongguan, Guangdong, China
| | - Hongman Xue
- Pediatric Hematology Laboratory, Division of Hematology/Oncology, Department of Pediatrics, The Seventh Affiliated Hospital of Sun Yat-Sen University, 518107 Shenzhen, Guangdong, China
| | - Haifeng Ding
- Department of Otolaryngology, Shenzhen Pingshan District People's Hospital, 518118 Shenzhen, Guangdong, China
| | - Cia-Hin Lau
- Department of Biology, College of Science, Shantou University, 515063 Shantou, Guangdong, China
| |
Collapse
|
2
|
Wang M, Jiang K, Gao Y, Liu Y, Zhang Z, Zhao W, Ji H, Zheng T, Feng H. A facile fabrication of conjugated fluorescent nanoparticles and micro-scale patterned encryption via high resolution inkjet printing. NANOSCALE 2021; 13:14337-14345. [PMID: 34473162 DOI: 10.1039/d1nr03062k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Conjugated fluorescent materials are getting more and more attention in the biomedical arena due to their high fluorescence intensity, non-bleaching and good biocompatibility. However, conjugated fluorescent materials are still not widely used in the field of anti-counterfeiting and pattern encryption due to their extremely low solubility and enormous difficulties in processing. Here, we use a facile approach to fabricate conjugated polymer fluorescent nanoparticles through a classic micro-emulsion method to address these issues. The particle size, loading materials and fluorescence intensity can be tuned as demanded. Later, these particles are transformed into invisible inks for inkjet printers to achieve micro-scale pattern encryption. These patterns show an ultra-high accuracy of around 30 micrometres. They can be used as QR codes for information encryption with 3 times more information encryption and great anti-counterfeiting ability. Finally, we establish an identification recognition system to check their validity. The scenario is the patient identification system of a hospital. The results show that these tags can be read in less than 3 seconds and they can last for 12 months at least. This facile approach holds great potential and bright prospects in the field of privacy protection, information encryption and anti-counterfeiting.
Collapse
Affiliation(s)
- Min Wang
- Sauvage Laboratory for Smart Materials, Flexible Printed Electronic Technology Center, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
| | - Kunkun Jiang
- Sauvage Laboratory for Smart Materials, Flexible Printed Electronic Technology Center, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
| | - Yifan Gao
- Sauvage Laboratory for Smart Materials, Flexible Printed Electronic Technology Center, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
| | - Yaming Liu
- Sauvage Laboratory for Smart Materials, Flexible Printed Electronic Technology Center, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
| | - Zhenchao Zhang
- Sauvage Laboratory for Smart Materials, Flexible Printed Electronic Technology Center, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
| | - Weiwei Zhao
- Sauvage Laboratory for Smart Materials, Flexible Printed Electronic Technology Center, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
| | - Hongjun Ji
- Sauvage Laboratory for Smart Materials, Flexible Printed Electronic Technology Center, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
| | - Tingting Zheng
- Peking University Shenzhen Hospital & Biomedical Research Institute, Shenzhen-PKU-HKUST Medical Center, Shenzhen, 518036, China
| | - Huanhuan Feng
- Sauvage Laboratory for Smart Materials, Flexible Printed Electronic Technology Center, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China.
| |
Collapse
|
3
|
Sanz-Ortega L, Rojas JM, Barber DF. Improving Tumor Retention of Effector Cells in Adoptive Cell Transfer Therapies by Magnetic Targeting. Pharmaceutics 2020; 12:E812. [PMID: 32867162 PMCID: PMC7557387 DOI: 10.3390/pharmaceutics12090812] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/19/2020] [Accepted: 08/24/2020] [Indexed: 02/07/2023] Open
Abstract
Adoptive cell transfer therapy is a promising anti-tumor immunotherapy in which effector immune cells are transferred to patients to treat tumors. However, one of its main limitations is the inefficient trafficking of inoculated effector cells to the tumor site and the small percentage of effector cells that remain activated when reaching the tumor. Multiple strategies have been attempted to improve the entry of effector cells into the tumor environment, often based on tumor types. It would be, however, interesting to develop a more general approach, to improve and facilitate the migration of specific activated effector lymphoid cells to any tumor type. We and others have recently demonstrated the potential for adoptive cell transfer therapy of the combined use of magnetic nanoparticle-loaded lymphoid effector cells together with the application of an external magnetic field to promote the accumulation and retention of lymphoid cells in specific body locations. The aim of this review is to summarize and highlight the recent findings in the field of magnetic accumulation and retention of effector cells in tumors after adoptive transfer, and to discuss the possibility of using this approach for tumor targeting with chimeric antigen receptor (CAR) T-cells.
Collapse
Affiliation(s)
- Laura Sanz-Ortega
- Center for Hematology and Regenerative Medicine (HERM), Department of Medicine, Karolinska Institute, 14183 Stockholm, Sweden;
| | - José Manuel Rojas
- Animal Health Research Centre (CISA)-INIA, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, 28130 Madrid, Spain;
| | - Domingo F. Barber
- Department of Immunology and Oncology, and NanoBiomedicine Initiative, Centro Nacional de Biotecnología (CNB)-CSIC, 28049 Madrid, Spain
| |
Collapse
|
4
|
Jiang K, Xu D, Liu Z, Zhao W, Ji H, Zhang J, Li M, Zheng T, Feng H. An invisible private 2D barcode design and implementation with tunable fluorescent nanoparticles. RSC Adv 2019; 9:37292-37299. [PMID: 35542252 PMCID: PMC9075753 DOI: 10.1039/c9ra05774a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 10/25/2019] [Indexed: 12/19/2022] Open
Abstract
The popularity of 2D barcodes is playing a key role in simplifying people's daily life activities, such as identification, quick payment, checking in and checking out, etc. However, relevant issues have emerged as their popularity has soared. The most urgent and representative problem is decryption, which may lead to serious information leakage and substantial damage to organizations, such as governments and international enterprises. This issue is mainly due to the visibility of 2D barcodes. In order to prevent potential privacy violation and sensitive information leakage through easy access of those visible 2D barcodes, we have designed and fabricated invisible 2D barcodes that will only be visible under UV illumination. This approach provides a promising solution to address the previous problem by transferring 2D barcodes into an invisible state. We have employed a typical micro-emulsion method to fabricate polystyrene (PS) fluorescent nanoparticles due to its simplicity. The invisible patterns can and will only be accessed and recognized under UV light illumination to protect personal private information. These invisible 2D barcodes provide a feasible solution for personal information protection and fit with a patient's privacy protection scenario very well, as we have demonstrated.
Collapse
Affiliation(s)
- Kunkun Jiang
- Flexible Printed Electronics Technology Center, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen) Shenzhen 518055 China
| | - Dandan Xu
- Flexible Printed Electronics Technology Center, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen) Shenzhen 518055 China
| | - Zhongyang Liu
- Flexible Printed Electronics Technology Center, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen) Shenzhen 518055 China
| | - Weiwei Zhao
- Flexible Printed Electronics Technology Center, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen) Shenzhen 518055 China
| | - Hongjun Ji
- Flexible Printed Electronics Technology Center, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen) Shenzhen 518055 China
| | - Jiaheng Zhang
- Flexible Printed Electronics Technology Center, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen) Shenzhen 518055 China
| | - Mingyu Li
- Flexible Printed Electronics Technology Center, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen) Shenzhen 518055 China
| | - Tingting Zheng
- Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Peking University Shenzhen Hospital Shenzhen China
| | - Huanhuan Feng
- Flexible Printed Electronics Technology Center, School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen) Shenzhen 518055 China
| |
Collapse
|
5
|
Emulsion Techniques for the Production of Pharmacological Nanoparticles. Macromol Biosci 2019; 19:e1900063. [DOI: 10.1002/mabi.201900063] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 04/10/2019] [Indexed: 12/13/2022]
|
6
|
Edlich A, Volz P, Brodwolf R, Unbehauen M, Mundhenk L, Gruber AD, Hedtrich S, Haag R, Alexiev U, Kleuser B. Crosstalk between core-multishell nanocarriers for cutaneous drug delivery and antigen-presenting cells of the skin. Biomaterials 2018; 162:60-70. [PMID: 29438881 DOI: 10.1016/j.biomaterials.2018.01.058] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 01/24/2018] [Accepted: 01/31/2018] [Indexed: 01/15/2023]
Abstract
Owing their unique chemical and physical properties core-multishell (CMS) nanocarriers are thought to underlie their exploitable biomedical use for a topical treatment of skin diseases. This highlights the need to consider not only the efficacy of CMS nanocarriers but also the potentially unpredictable and adverse consequences of their exposure thereto. As CMS nanocarriers are able to penetrate into viable layers of normal and stripped human skin ex vivo as well as in in vitro skin disease models the understanding of nanoparticle crosstalk with components of the immune system requires thorough investigation. Our studies highlight the biocompatible properties of CMS nanocarriers on Langerhans cells of the skin as they did neither induce cytotoxicity and genotoxicity nor cause reactive oxygen species (ROS) or an immunological response. Nevertheless, CMS nanocarriers were efficiently taken up by Langerhans cells via divergent endocytic pathways. Bioimaging of CMS nanocarriers by fluorescence lifetime imaging microscopy (FLIM) and flow cytometry indicated not only a localization within the lysosomes but also an energy-dependent exocytosis of unmodified CMS nanocarriers into the extracellular environment.
Collapse
Affiliation(s)
- Alexander Edlich
- Institute of Nutritional Science, University of Potsdam, Potsdam, Germany
| | - Pierre Volz
- Institute of Experimental Physics, Freie Universität Berlin, Berlin, Germany
| | - Robert Brodwolf
- Institute of Experimental Physics, Freie Universität Berlin, Berlin, Germany
| | - Michael Unbehauen
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Lars Mundhenk
- Institute of Veterinary Pathology, Freie Universität Berlin, Berlin, Germany
| | - Achim D Gruber
- Institute of Veterinary Pathology, Freie Universität Berlin, Berlin, Germany
| | - Sarah Hedtrich
- Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - Rainer Haag
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - Ulrike Alexiev
- Institute of Experimental Physics, Freie Universität Berlin, Berlin, Germany.
| | - Burkhard Kleuser
- Institute of Nutritional Science, University of Potsdam, Potsdam, Germany.
| |
Collapse
|
7
|
Reisch A, Klymchenko AS. Fluorescent Polymer Nanoparticles Based on Dyes: Seeking Brighter Tools for Bioimaging. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:1968-92. [PMID: 26901678 PMCID: PMC5405874 DOI: 10.1002/smll.201503396] [Citation(s) in RCA: 364] [Impact Index Per Article: 45.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Revised: 12/13/2015] [Indexed: 05/13/2023]
Abstract
Speed, resolution and sensitivity of today's fluorescence bioimaging can be drastically improved by fluorescent nanoparticles (NPs) that are many-fold brighter than organic dyes and fluorescent proteins. While the field is currently dominated by inorganic NPs, notably quantum dots (QDs), fluorescent polymer NPs encapsulating large quantities of dyes (dye-loaded NPs) have emerged recently as an attractive alternative. These new nanomaterials, inspired from the fields of polymeric drug delivery vehicles and advanced fluorophores, can combine superior brightness with biodegradability and low toxicity. Here, we describe the strategies for synthesis of dye-loaded polymer NPs by emulsion polymerization and assembly of pre-formed polymers. Superior brightness requires strong dye loading without aggregation-caused quenching (ACQ). Only recently several strategies of dye design were proposed to overcome ACQ in polymer NPs: aggregation induced emission (AIE), dye modification with bulky side groups and use of bulky hydrophobic counterions. The resulting NPs now surpass the brightness of QDs by ≈10-fold for a comparable size, and have started reaching the level of the brightest conjugated polymer NPs. Other properties, notably photostability, color, blinking, as well as particle size and surface chemistry are also systematically analyzed. Finally, major and emerging applications of dye-loaded NPs for in vitro and in vivo imaging are reviewed.
Collapse
Affiliation(s)
- Andreas Reisch
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de Pharmacie, 74, Route du Rhin, 67401 ILLKIRCH Cedex, France
| | - Andrey S. Klymchenko
- Laboratoire de Biophotonique et Pharmacologie, UMR 7213 CNRS, Université de Strasbourg, Faculté de Pharmacie, 74, Route du Rhin, 67401 ILLKIRCH Cedex, France
| |
Collapse
|
8
|
Zupke O, Distler E, Jürchott A, Paiphansiri U, Dass M, Thomas S, Hartwig UF, Theobald M, Landfester K, Mailänder V, Herr W. Nanoparticles and antigen-specific T-cell therapeutics: a comprehensive study on uptake and release. Nanomedicine (Lond) 2016; 10:1063-76. [PMID: 25929565 DOI: 10.2217/nnm.14.160] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM T lymphocytes are used as cellular therapeutics in many disease entities including cancer. We investigated the uptake and retention of nanoparticles (NPs) by these nonphagocytic cells. MATERIALS & METHODS Uptake, release and toxicity of various polymeric NP preparations were analyzed by flow cytometry, confocal laser scanning microscopy and transmission electron microscopy. T-cell effector functions were measured using IFN-γ-ELISPOT and (51)Chromium-release assays. RESULTS Amino-functionalized NPs were efficiently ingested by antigen-specific T cells without adversely influencing effector functions. NPs were stored in membrane-surrounded vesicles, with major proportions released extracellularly during 24 h. CONCLUSION Amino-functionalized polymeric NPs are efficiently taken up by human T cells and could be used to design nanocarriers for direct access and manipulation of antigen-specific T cells in vivo.
Collapse
Affiliation(s)
- Oliver Zupke
- Department of Medicine III, Hematology, Oncology & Pneumology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstr. 1, 55131 Mainz, Germany
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
9
|
Abstract
Soft fluorescent nanomaterials have attracted recent attention as imaging agents for biological applications, because they provide the advantages of good biocompatibility, high brightness, and easy biofunctionalization. Here, we provide a survey of recent developments in fluorescent soft nano-sized biological imaging agents. Various soft fluorescent nanoparticles (NPs) (including dye-doped polymer NPs, semiconducting polymer NPs, small-molecule organic NPs, nanogels, micelles, vesicles, and biomaterial-based NPs) are summarized from the perspectives of preparation methods, structure, optical properties, and surface functionalization. Based on both optical and functional properties of the nano-sized imaging agents, their applications are then reviewed in terms of in vitro imaging, in vivo imaging, and cellular-process imaging, by means of specific or nonspecific targeting.
Collapse
Affiliation(s)
- Hong-Shang Peng
- Department of Chemistry, University of Washington, Seattle, WA, USA.
| | | |
Collapse
|
10
|
Blaudszun AR, Lian Q, Schnabel M, Loretz B, Steinfeld U, Lee HH, Wenz G, Lehr CM, Schneider M, Philippi A. Polyester-idarubicin nanoparticles and a polymer-photosensitizer complex as potential drug formulations for cell-mediated drug delivery. Int J Pharm 2014; 474:70-9. [DOI: 10.1016/j.ijpharm.2014.07.048] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 07/22/2014] [Accepted: 07/26/2014] [Indexed: 01/12/2023]
|
11
|
Seydoux E, Rothen-Rutishauser B, Nita IM, Balog S, Gazdhar A, Stumbles PA, Petri-Fink A, Blank F, von Garnier C. Size-dependent accumulation of particles in lysosomes modulates dendritic cell function through impaired antigen degradation. Int J Nanomedicine 2014; 9:3885-902. [PMID: 25152619 PMCID: PMC4140235 DOI: 10.2147/ijn.s64353] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Introduction Nanosized particles may enable therapeutic modulation of immune responses by targeting dendritic cell (DC) networks in accessible organs such as the lung. To date, however, the effects of nanoparticles on DC function and downstream immune responses remain poorly understood. Methods Bone marrow–derived DCs (BMDCs) were exposed in vitro to 20 or 1,000 nm polystyrene (PS) particles. Particle uptake kinetics, cell surface marker expression, soluble protein antigen uptake and degradation, as well as in vitro CD4+ T-cell proliferation and cytokine production were analyzed by flow cytometry. In addition, co-localization of particles within the lysosomal compartment, lysosomal permeability, and endoplasmic reticulum stress were analyzed. Results The frequency of PS particle–positive CD11c+/CD11b+ BMDCs reached an early plateau after 20 minutes and was significantly higher for 20 nm than for 1,000 nm PS particles at all time-points analyzed. PS particles did not alter cell viability or modify expression of the surface markers CD11b, CD11c, MHC class II, CD40, and CD86. Although particle exposure did not modulate antigen uptake, 20 nm PS particles decreased the capacity of BMDCs to degrade soluble antigen, without affecting their ability to induce antigen-specific CD4+ T-cell proliferation. Co-localization studies between PS particles and lysosomes using laser scanning confocal microscopy detected a significantly higher frequency of co-localized 20 nm particles as compared with their 1,000 nm counterparts. Neither size of PS particle caused lysosomal leakage, expression of endoplasmic reticulum stress gene markers, or changes in cytokines profiles. Conclusion These data indicate that although supposedly inert PS nanoparticles did not induce DC activation or alteration in CD4+ T-cell stimulating capacity, 20 nm (but not 1,000 nm) PS particles may reduce antigen degradation through interference in the lysosomal compartment. These findings emphasize the importance of performing in-depth analysis of DC function when developing novel approaches for immune modulation with nanoparticles.
Collapse
Affiliation(s)
- Emilie Seydoux
- Department of Respiratory Medicine, Inselspital, Bern University Hospital, Department of Clinical Research, University of Bern, Switzerland ; Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | - Barbara Rothen-Rutishauser
- Department of Respiratory Medicine, Inselspital, Bern University Hospital, Department of Clinical Research, University of Bern, Switzerland ; Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland
| | - Izabela M Nita
- Department of Respiratory Medicine, Inselspital, Bern University Hospital, Department of Clinical Research, University of Bern, Switzerland
| | - Sandor Balog
- Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland
| | - Amiq Gazdhar
- Department of Respiratory Medicine, Inselspital, Bern University Hospital, Department of Clinical Research, University of Bern, Switzerland
| | - Philip A Stumbles
- School of Veterinary and Life Sciences, Molecular and Biomedical Sciences, Murdoch University, Perth, WA, Australia ; Telethon Kids Institute, Perth, WA, Australia
| | - Alke Petri-Fink
- Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland ; Department of Chemistry, University of Fribourg, Fribourg, Switzerland
| | - Fabian Blank
- Department of Respiratory Medicine, Inselspital, Bern University Hospital, Department of Clinical Research, University of Bern, Switzerland
| | - Christophe von Garnier
- Department of Respiratory Medicine, Inselspital, Bern University Hospital, Department of Clinical Research, University of Bern, Switzerland
| |
Collapse
|
12
|
Baumann D, Hofmann D, Nullmeier S, Panther P, Dietze C, Musyanovych A, Ritz S, Landfester K, Mailänder V. Complex encounters: nanoparticles in whole blood and their uptake into different types of white blood cells. Nanomedicine (Lond) 2013; 8:699-713. [DOI: 10.2217/nnm.12.111] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: A whole blood assay for evaluating the uptake of nanoparticles into white blood cells in order to close the gap between basic studies in cell culture and pharmacokinetic studies in animals was developed. Materials & methods: After drawing peripheral blood into standard blood collection vials with different anticoagulants, amino- and carboxy-functionalized polymeric styrene nanoparticles were added and uptake was evaluated by flow cytometry. Results: By counterstaining surface markers of leukocytes (e.g., monocytes, neutrophil granulocytes, B or T lymphocytes), investigations of different cell types can be conducted in a single run by flow cytometry. The authors demonstrated that anticoagulation should be done with heparin, and not EDTA, in order to prevent hampering of uptake mechanisms. Conclusion: By using heparinized whole blood, the authors demonstrated differences and usefulness of this assay for screening cellular uptake as it should occur in the bloodstream. Nevertheless, animal studies are warranted for final assessment of the nanoparticles. Original submitted 11 November 2011; Revised submitted 1 July 2012; Published online 31 August 2012
Collapse
Affiliation(s)
- Daniela Baumann
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Daniel Hofmann
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Sven Nullmeier
- Institute of Anatomy, University of Magdeburg, Haus 43, Leipziger Straße 44, 39120 Magdeburg, Germany
| | - Patricia Panther
- Institute of Anatomy, University of Magdeburg, Haus 43, Leipziger Straße 44, 39120 Magdeburg, Germany
| | - Claudia Dietze
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Anna Musyanovych
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Sandra Ritz
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Katharina Landfester
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Volker Mailänder
- Third Department of Medicine (Hematology, Oncology & Pneumology), University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
| |
Collapse
|
13
|
Landfester K, Mailänder V. Nanocapsules with specific targeting and release properties using miniemulsion polymerization. Expert Opin Drug Deliv 2013; 10:593-609. [DOI: 10.1517/17425247.2013.772976] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
14
|
Frick SU, Bacher N, Baier G, Mailänder V, Landfester K, Steinbrink K. Functionalized polystyrene nanoparticles trigger human dendritic cell maturation resulting in enhanced CD4+ T cell activation. Macromol Biosci 2012; 12:1637-47. [PMID: 23042770 DOI: 10.1002/mabi.201200223] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 08/03/2012] [Indexed: 01/13/2023]
Abstract
Nanoparticles (NP) represent a promising tool for biomedical applications. Here, sulfonate- and phosphonate-functionalized polystyrene NP are analyzed for their interaction with human monocyte-derived dendritic cells (DC). Immature dendritic cells (iDC) display a higher time- and dose-dependent uptake of functionalized polystyrene NP compared to mature dendritic cells (mDC). Notably, NP induce an enhanced maturation of iDC but not of mDC (upregulation of stimulatory molecules and cytokines). NP-triggered maturation results in a significantly enhanced T cell stimulatory capacity (increased CD4(+) T cell proliferation and IFN-γ production), indicating a shift to a pronounced Th1 response. Immunomodulatory properties of NP may be a useful strategy for strengthening the efficacy of NP-based approaches in immunotherapy.
Collapse
Affiliation(s)
- Stefanie U Frick
- Department of Dermatology, University Medical Center, Johannes Gutenberg-University Mainz, Langenbeckstrasse 1, 55131 Mainz, Germany
| | | | | | | | | | | |
Collapse
|
15
|
Stevens AL, Kaeser A, Schenning APHJ, Herz LM. Morphology-dependent energy transfer dynamics in fluorene-based amphiphile nanoparticles. ACS NANO 2012; 6:4777-4787. [PMID: 22548325 DOI: 10.1021/nn204942r] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Nanoparticles are interesting systems to study because of their large range of potential uses in biological imaging and sensing. We investigated molecular nanoparticles formed by fast injection of a small volume of molecularly dissolved fluorene-derivative amphiphilic molecules into a polar solvent, which resulted in solid spherical particles of ∼80 nm diameter with high stability. Energy transfer studies were carried out on two-component nanoparticles that contained mixtures of donor and acceptor amphiphiles of various fractions. We conducted time-resolved photoluminescence measurements on the two-component nanoparticles in order to determine whether the fundamental donor-acceptor interaction parameter (the Förster radius) depends on the acceptor concentration. The Förster radius was found to be large for very low incorporated acceptor fractions (<0.1%), but it declined with increasing concentration. These changes were concomitant with shifts in the acceptor emission and absorption circular dichroism spectra that indicated an increasing clustering of acceptors into domains as their fraction was raised. In addition, for acceptor fractions below 2% the extracted Förster radii were found to be significantly larger than predicted from donor-acceptor spectral overlap calculations, in accordance with efficient excitation diffusion within the donor matrix, aiding the overall transfer to acceptors. We conclude that energy transfer in two-component nanoparticles shows a complex interplay between phase segregation of the constituent donor and acceptor molecules and excitation diffusion within their domains.
Collapse
Affiliation(s)
- Amy L Stevens
- Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, United Kingdom
| | | | | | | |
Collapse
|
16
|
Nikolajski M, Wotschadlo J, Clement JH, Heinze T. Amino-functionalized cellulose nanoparticles: preparation, characterization, and interactions with living cells. Macromol Biosci 2012; 12:920-5. [PMID: 22535832 DOI: 10.1002/mabi.201200040] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Indexed: 11/07/2022]
Abstract
Spherical nanoparticles with sizes from 80 to 200 nm are obtained by self-assembly of highly functionalized 6-deoxy-6-(ω-aminoalkyl)aminocellulosecarbamates. The particles are very stable, nontoxic, and possess primary amino groups that are accessible to further modifications in aqueous suspension. The particles can be labeled with rhodamine B isothiocyanate without changing their size, stability, and shape. The nanoparticles obtained are investigated by means of photo correlation spectroscopy, zeta potential measurements, SEM and fluorescence spectroscopy. Incorporation of the nanoparticles in human foreskin fibroblasts BJ-1-htert and breast carcinoma MCF-7 cells without any transfection reagent is proved by means of confocal laser scanning microscopy.
Collapse
Affiliation(s)
- Melanie Nikolajski
- Center of Excellence for Polysaccharide Research, Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University of Jena, Jena, Germany
| | | | | | | |
Collapse
|
17
|
Bartneck M, Keul HA, Wambach M, Bornemann J, Gbureck U, Chatain N, Neuss S, Tacke F, Groll J, Zwadlo-Klarwasser G. Effects of nanoparticle surface-coupled peptides, functional endgroups, and charge on intracellular distribution and functionality of human primary reticuloendothelial cells. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2012; 8:1282-92. [PMID: 22406188 DOI: 10.1016/j.nano.2012.02.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Revised: 01/15/2012] [Accepted: 02/22/2012] [Indexed: 11/27/2022]
Abstract
UNLABELLED The medical use of nanoparticles (NPs) has to consider their interactions with the cells of the reticuloendothelial system. In this study the authors used gold nanorods coated by PEG chains bearing peptides or charged functional groups to study their influence on the uptake, subcellular distribution, and activation of human primary reticuloendothelial cells: monocytes, macrophages (MΦ), immature and mature dendritic cells (DC), and endothelial cells (EC). We found that beside MΦ and immature DC also EC internalize large quantities of NPs and observed an increased uptake of positively charged particles. Most notably, NPs accumulated in the MHC II compartment in mature DC that is involved in antigen processing. Furthermore, surface-coupled peptide sequences RGD and GLF altered the activation profile of DC, and modulated cytokine release in both DC and MΦ in a cell specific manner. These data suggest that the charge of NPs mainly influences their uptake, whereas conjugated peptides alter cell functions. FROM THE CLINICAL EDITOR In this paper the interactions between RES cells and nanoparticles is investigated, concluding that in the case of gold nanorods charge determines uptake characteristics, whereas conjugated peptides determine their function.
Collapse
Affiliation(s)
- Matthias Bartneck
- Department of Medicine III, Medical Faculty, RWTH Aachen, Aachen, Germany.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Höcherl A, Dass M, Landfester K, Mailänder V, Musyanovych A. Competitive Cellular Uptake of Nanoparticles Made From Polystyrene, Poly(methyl methacrylate), and Polylactide. Macromol Biosci 2012; 12:454-64. [DOI: 10.1002/mabi.201100337] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2011] [Revised: 12/01/2011] [Indexed: 01/23/2023]
|