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Freis B, Ramírez MDLÁ, Furgiuele S, Journe F, Cheignon C, Charbonnière LJ, Henoumont C, Kiefer C, Mertz D, Affolter-Zbaraszczuk C, Meyer F, Saussez S, Laurent S, Tasso M, Bégin-Colin S. Bioconjugation studies of an EGF-R targeting ligand on dendronized iron oxide nanoparticles to target head and neck cancer cells. Int J Pharm 2023; 635:122654. [PMID: 36720449 DOI: 10.1016/j.ijpharm.2023.122654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 01/31/2023]
Abstract
A major challenge in nanomedicine is designing nanoplatforms (NPFs) to selectively target abnormal cells to ensure early diagnosis and targeted therapy. Among developed NPFs, iron oxide nanoparticles (IONPs) are good MRI contrast agents and can be used for therapy by hyperthermia and as radio-sensitizing agents. Active targeting is a promising method for selective IONPs accumulation in cancer tissues and is generally performed by using targeting ligands (TL). Here, a TL specific for the epidermal growth factor receptor (EGFR) is bound to the surface of dendronized IONPs to produce nanostructures able to specifically recognize EGFR-positive FaDu and 93-Vu head and neck cancer cell lines. Several parameters were optimized to ensure a high coupling yield and to adequately quantify the amount of TL per nanoparticle. Nanostructures with variable amounts of TL on the surface were produced and evaluated for their potential to specifically target and be thereafter internalized by cells. Compared to the bare NPs, the presence of the TL at the surface was shown to be effective to enhance their internalization and to play a role in the total amount of iron present per cell.
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Affiliation(s)
- Barbara Freis
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux, UMR CNRS-UdS 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg, France; Laboratoire de NMR et d'imagerie moléculaire, Université de Mons, Avenue Maistriau 19, 7000 Mons, Belgium
| | - María De Los Ángeles Ramírez
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux, UMR CNRS-UdS 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg, France
| | - Sonia Furgiuele
- Department of Human Anatomy and Experimental Oncology, Faculty of Medicine, Research Institute for Health Sciences and Technology, University of Mons (UMONS), Avenue du Champ de Mars, 8, 7000 Mons, Belgium
| | - Fabrice Journe
- Department of Human Anatomy and Experimental Oncology, Faculty of Medicine, Research Institute for Health Sciences and Technology, University of Mons (UMONS), Avenue du Champ de Mars, 8, 7000 Mons, Belgium
| | - Clémence Cheignon
- Université de Strasbourg, CNRS, Institut Pluridisciplinaire Hubert Curien, UMR 7178, 25, rue Becquerel, 67087 Strasbourg, France
| | - Loïc J Charbonnière
- Université de Strasbourg, CNRS, Institut Pluridisciplinaire Hubert Curien, UMR 7178, 25, rue Becquerel, 67087 Strasbourg, France
| | - Céline Henoumont
- Laboratoire de NMR et d'imagerie moléculaire, Université de Mons, Avenue Maistriau 19, 7000 Mons, Belgium
| | - Celine Kiefer
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux, UMR CNRS-UdS 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg, France
| | - Damien Mertz
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux, UMR CNRS-UdS 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg, France
| | - Christine Affolter-Zbaraszczuk
- Inserm U1121, Centre de recherche en biomédecine de Strasbourg, 1 rue Eugène Boeckel, CS 60026, 67084 Strasbourg Cedex, France
| | - Florent Meyer
- Inserm U1121, Centre de recherche en biomédecine de Strasbourg, 1 rue Eugène Boeckel, CS 60026, 67084 Strasbourg Cedex, France
| | - Sven Saussez
- Department of Human Anatomy and Experimental Oncology, Faculty of Medicine, Research Institute for Health Sciences and Technology, University of Mons (UMONS), Avenue du Champ de Mars, 8, 7000 Mons, Belgium
| | - Sophie Laurent
- Laboratoire de NMR et d'imagerie moléculaire, Université de Mons, Avenue Maistriau 19, 7000 Mons, Belgium
| | - Mariana Tasso
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux, UMR CNRS-UdS 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg, France; Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET, Diagonal 113 y 64, 1900 La Plata, Argentina
| | - Sylvie Bégin-Colin
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux, UMR CNRS-UdS 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg, France.
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2
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Wu S, Helal-Neto E, Matos APDS, Jafari A, Kozempel J, Silva YJDA, Serrano-Larrea C, Alves Junior S, Ricci-Junior E, Alexis F, Santos-Oliveira R. Radioactive polymeric nanoparticles for biomedical application. Drug Deliv 2021; 27:1544-1561. [PMID: 33118416 PMCID: PMC7599028 DOI: 10.1080/10717544.2020.1837296] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Nowadays, emerging radiolabeled nanosystems are revolutionizing medicine in terms of diagnostics, treatment, and theranostics. These radionuclides include polymeric nanoparticles (NPs), liposomal carriers, dendrimers, magnetic iron oxide NPs, silica NPs, carbon nanotubes, and inorganic metal-based nanoformulations. Between these nano-platforms, polymeric NPs have gained attention in the biomedical field due to their excellent properties, such as their surface to mass ratio, quantum properties, biodegradability, low toxicity, and ability to absorb and carry other molecules. In addition, NPs are capable of carrying high payloads of radionuclides which can be used for diagnostic, treatment, and theranostics depending on the radioactive material linked. The radiolabeling process of nanoparticles can be performed by direct or indirect labeling process. In both cases, the most appropriate must be selected in order to keep the targeting properties as preserved as possible. In addition, radionuclide therapy has the advantage of delivering a highly concentrated absorbed dose to the targeted tissue while sparing the surrounding healthy tissues. Said another way, radioactive polymeric NPs represent a promising prospect in the treatment and diagnostics of cardiovascular diseases such as cardiac ischemia, infectious diseases such as tuberculosis, and other type of cancer cells or tumors.
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Affiliation(s)
- Shentian Wu
- Department of Radiotherapy Center, Maoming People's Hospital, Maoming City, China
| | - Edward Helal-Neto
- Nuclear Engineering Institute, Brazilian Nuclear Energy Commission, Rio de Janeiro, Brazil
| | | | - Amir Jafari
- Nuclear Engineering Institute, Brazilian Nuclear Energy Commission, Rio de Janeiro, Brazil.,Department of Medical Nanotechnology in the Faculty of Advanced Technology in Medicine, Iran University of Medical Science, Tehran, Iran
| | - Ján Kozempel
- Faculty of Nuclear Sciences and Physical Engineering (FJFI), Czech Technical University in Prague (ČVUT), Prague, Czech Republic
| | | | | | - Severino Alves Junior
- Department of Fundamental Chemistry, Federal University of Pernambuco, Recife, Brazil
| | - Eduardo Ricci-Junior
- Faculty of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Frank Alexis
- School of Biological Sciences and Engineering, Yachay Tech University, Urcuquí, Ecuador
| | - Ralph Santos-Oliveira
- Nuclear Engineering Institute, Brazilian Nuclear Energy Commission, Rio de Janeiro, Brazil.,Laboratory of Radiopharmacy and Nanoradiopharmaceuticals, Zona Oeste State University, Rio de Janeiro, Brazil
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3
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Cinotti E, Belgrano V, Labeille B, Grivet D, Douchet C, Chauleur C, Cambazard F, Thomas A, Prade V, Tognetti L, Cartocci A, Rubegni P, Perrot JL. In vivo and ex vivo confocal microscopy for the evaluation of surgical margins of melanoma. JOURNAL OF BIOPHOTONICS 2020; 13:e202000179. [PMID: 32706484 DOI: 10.1002/jbio.202000179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/30/2020] [Accepted: 07/16/2020] [Indexed: 06/11/2023]
Abstract
We report the first series of melanomas (MMs) where the surgical margins were evaluated both by ex vivo confocal microscopy (EVCM) and in vivo reflectance confocal microscopy (RCM). We evaluated the surgical margins of 42 cutaneous MMs of lentigo maligna/lentigo maligna melanoma type and 2 mucosal MMs with EVCM. Cutaneous MMs also underwent RCM mapping. Imaging results were compared with histopathology. The rate of correct identification of the tumor margins (invaded or not invaded) was 97.6% for RCM (evaluations of cutaneous MMs) and 95.5% for EVCM (evaluations of both cutaneous and mucosal MMs). Our study showed that the MM extension is visible under EVCM and that the combination of in vivo RCM and EVCM can be a new strategy for the evaluation of surgical margins of MMs.
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Affiliation(s)
- Elisa Cinotti
- Department of Medical, Surgical and Neurological Science, Dermatology Section, University of Siena, S. Maria alle Scotte Hospital, Siena, Italy
| | - Valerio Belgrano
- Department of Surgical Sciences and Integrated Diagnostics, San Martino University General Hospital, Genoa, Italy
| | - Bruno Labeille
- Department of Dermatology, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Damien Grivet
- Department of Ophthalmology, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Catherine Douchet
- Department of Pathology, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Celine Chauleur
- Department of Gynecology, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Frédéric Cambazard
- Department of Dermatology, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Alix Thomas
- Department of Maxillofacial and Plastic Surgery, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Virginie Prade
- Department of Maxillofacial and Plastic Surgery, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - Linda Tognetti
- Department of Medical, Surgical and Neurological Science, Dermatology Section, University of Siena, S. Maria alle Scotte Hospital, Siena, Italy
| | | | - Pietro Rubegni
- Department of Medical, Surgical and Neurological Science, Dermatology Section, University of Siena, S. Maria alle Scotte Hospital, Siena, Italy
| | - Jean Luc Perrot
- Department of Medical, Surgical and Neurological Science, Dermatology Section, University of Siena, S. Maria alle Scotte Hospital, Siena, Italy
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Malvehy J, Pérez-Anker J, Toll A, Pigem R, Garcia A, Alos LL, Puig S. Ex vivo confocal microscopy: revolution in fast pathology in dermatology. Br J Dermatol 2020; 183:1011-1025. [PMID: 32134506 DOI: 10.1111/bjd.19017] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/02/2020] [Indexed: 02/06/2023]
Abstract
Confocal microscopy with in vivo and ex vivo modalities has been used in the evaluation of skin cancer and other dermatological disorders. Recent developments in ex vivo confocal microscopy allow for faster pathology assessment with greater accuracy by the visualization of cellular and architectural details, similarly to standard pathology, in either paraffin-embedded or frozen samples. They include the possibility of multimodal confocal microscopy using different lasers and fusion images. New staining protocols including immunostaining, with no damage to conventional histopathology preparation, have been recently described in melanocytic tumours and inflammatory skin diseases. Digital staining with haematoxylin and eosin is also incorporated in the new devices. In this review the applications of ex vivo confocal microscopy will be presented with the description of the technique and the technology, clinical evidence in dermatology and other fields, and further applications.
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Affiliation(s)
- J Malvehy
- Dermatology Department, University of Barcelona, Barcelona, Spain.,Institut d'Investigacions Biomediques August Pi I Sunyer (IDIBAPS), Barcelona, Spain.,Biomedical Research Networking Centre on Rare Diseases (CIBERER), ISCIII, Barcelona, Spain
| | - J Pérez-Anker
- Dermatology Department, University of Barcelona, Barcelona, Spain
| | - A Toll
- Dermatology Department, University of Barcelona, Barcelona, Spain
| | - R Pigem
- Dermatology Department, University of Barcelona, Barcelona, Spain
| | - A Garcia
- Pathology Department, Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain
| | - L L Alos
- Pathology Department, Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain
| | - S Puig
- Dermatology Department, University of Barcelona, Barcelona, Spain.,Institut d'Investigacions Biomediques August Pi I Sunyer (IDIBAPS), Barcelona, Spain.,Biomedical Research Networking Centre on Rare Diseases (CIBERER), ISCIII, Barcelona, Spain
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5
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Nguyen DV, Hugoni L, Filippi M, Perton F, Shi D, Voirin E, Power L, Cotin G, Krafft MP, Scherberich A, Lavalle P, Begin-Colin S, Felder-Flesch D. Mastering bioactive coatings of metal oxide nanoparticles and surfaces through phosphonate dendrons. NEW J CHEM 2020. [DOI: 10.1039/c9nj05565g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Dendritic phosphonates are versatile coatings of several nanomaterials for health applications ranging from implants to nanoparticles and microbubbles.
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6
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Filippi M, Born G, Felder-Flesch D, Scherberich A. Use of nanoparticles in skeletal tissue regeneration and engineering. Histol Histopathol 2019; 35:331-350. [PMID: 31721139 DOI: 10.14670/hh-18-184] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Bone and osteochondral defects represent one of the major causes of disabilities in the world. Derived from traumas and degenerative pathologies, these lesions cause severe pain, joint deformity, and loss of joint motion. The standard treatments in clinical practice present several limitations. By producing functional substitutes for damaged tissues, tissue engineering has emerged as an alternative in the treatment of defects in the skeletal system. Despite promising preliminary clinical outcomes, several limitations remain. Nanotechnologies could offer new solutions to overcome those limitations, generating materials more closely mimicking the structures present in naturally occurring systems. Nanostructures comparable in size to those appearing in natural bone and cartilage have thus become relevant in skeletal tissue engineering. In particular, nanoparticles allow for a unique combination of approaches (e.g. cell labelling, scaffold modification or drug and gene delivery) inside single integrated systems for optimized tissue regeneration. In the present review, the main types of nanoparticles and the current strategies for their application to skeletal tissue engineering are described. The collection of studies herein considered confirms that advanced nanomaterials will be determinant in the design of regenerative therapeutic protocols for skeletal lesions in the future.
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Affiliation(s)
- Miriam Filippi
- Department of Biomedical Engineering, University of Basel, Allschwil, Basel, Switzerland.,Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Gordian Born
- Department of Biomedical Engineering, University of Basel, Allschwil, Basel, Switzerland.,Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Delphine Felder-Flesch
- Institut de Physique et Chimie des Matériaux Strasbourg, UMR CNRS-Université de Strasbourg, Strasbourg, France
| | - Arnaud Scherberich
- Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland.,Department of Biomedical Engineering, University of Basel, Allschwil, Basel, Switzerland.
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Bağcı IS, Aoki R, Krammer S, Ruzicka T, Sárdy M, Hartmann D. Ex vivo confocal laser scanning microscopy: An innovative method for direct immunofluorescence of cutaneous vasculitis. JOURNAL OF BIOPHOTONICS 2019; 12:e201800425. [PMID: 31021054 DOI: 10.1002/jbio.201800425] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 02/05/2019] [Accepted: 03/07/2019] [Indexed: 06/09/2023]
Abstract
Ex vivo confocal laser scanning microscopy (ex vivo CLSM) offers an innovative diagnostic approach through vertical scanning of skin samples with a resolution close to conventional histology. In addition, it enables fluorescence detection in tissues. We aimed to assess the applicability of ex vivo CLSM in the detection of vascular immune complexes in cutaneous vasculitis and to compare its diagnostic accuracy with direct immunofluorescence (DIF) microscopy. Eighty-two sections of 49 vasculitis patients with relevant DIF microscopy findings were examined using ex vivo CLSM following staining with fluorescent-labeled IgG, IgM, IgA, C3 and fibrinogen antibodies. DIF microscopy showed immunoreactivity of vessels with IgG, IgM, IgA, C3 and Fibrinogen in 2.0%, 49.9%, 12.2%, 59.2% and 44.9% of the patients, respectively. Ex vivo CLSM detected positive vessels with the same antibodies in 2.0%, 38.8%, 8.2%, 42.9% and 36.7% of the patients, respectively. The detection rate of positive superficial dermal vessels was significantly higher in DIF microscopy as compared to ex vivo CLSM (P < .05). Whereas, ex vivo CLSM identified positive deep dermal vessels more frequently compared to DIF microscopy. In conclusion, ex vivo CLSM could identify specific binding of the antibodies in vessels and showed a comparable performance to conventional DIF microscopy in diagnosing vasculitis.
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Affiliation(s)
- Işın S Bağcı
- Department of Dermatology and Allergy, University Hospital, LMU Munich, Munich, Germany
| | - Rui Aoki
- Department of Dermatology and Allergy, University Hospital, LMU Munich, Munich, Germany
| | - Sebastian Krammer
- Department of Dermatology and Allergy, University Hospital, LMU Munich, Munich, Germany
| | - Thomas Ruzicka
- Department of Dermatology and Allergy, University Hospital, LMU Munich, Munich, Germany
| | - Miklós Sárdy
- Department of Dermatology and Allergy, University Hospital, LMU Munich, Munich, Germany
- Department of Dermatology, Venereology and Dermatooncology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Daniela Hartmann
- Department of Dermatology and Allergy, University Hospital, LMU Munich, Munich, Germany
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Ray AS, Ghann WE, Tsoi PS, Szychowski B, Dockery LT, Pak YJ, Li W, Kane MA, Swaan P, Daniel MC. Set of Highly Stable Amine- and Carboxylate-Terminated Dendronized Au Nanoparticles with Dense Coating and Nontoxic Mixed-Dendronized Form. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:3391-3403. [PMID: 30712354 PMCID: PMC6499480 DOI: 10.1021/acs.langmuir.8b03196] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The synthesis of a novel poly(propyleneimine) (PPI) dendron in gram scale as well as its use in the formation of a highly stable, dendronized gold nanoparticle (AuNP)-based drug delivery platform is described herein. The AuNP-based platform is composed of three complementary parts: (i) a 15 nm AuNP core, (ii) a heterofunctional thioctic acid-terminated tetraethylene glycol spacer, and (iii) a third-generation PPI dendron with a unique protonation profile and diverse end-group functionalization that allows for further derivatization. The prepared dendronized AuNPs are able to withstand several rounds of lyophilization cycles with no sign of aggregation, are stable in phosphate-buffered saline and Hanks' buffer as well as in serum, and are resistant to degradation by glutathione exchange reactions. This nanocarrier platform displays a dense coating, with >1400 dendrons/AuNPs, which will enable very high payload. Furthermore, while amine-terminated AuNPs expectedly showed cytotoxicity against the MCF-7 breast cancer cell line from a NP concentration of 1 nM, the mixed monolayer AuNPs (coated with 40/60 amine/carboxylate dendrons) interestingly did not exhibit any sign of toxicity at concentrations as high as 15 nM, similar to the carboxylate-terminated AuNPs. The described dendronized AuNPs address the current practical need for a stable NP-based drug delivery platform which is scalable and easily conjugable, has long-term stability in solution, and can be conveniently formulated as a powder and redispersed in desired buffer or serum.
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Affiliation(s)
- Arunendra Saha Ray
- Department of Chemistry and Biochemistry, University of Maryland Baltimore County (UMBC), Baltimore, Maryland 21250, United States
| | - William E. Ghann
- Department of Chemistry and Biochemistry, University of Maryland Baltimore County (UMBC), Baltimore, Maryland 21250, United States
| | - Phoebe S. Tsoi
- Department of Chemistry and Biochemistry, University of Maryland Baltimore County (UMBC), Baltimore, Maryland 21250, United States
| | - Brian Szychowski
- Department of Chemistry and Biochemistry, University of Maryland Baltimore County (UMBC), Baltimore, Maryland 21250, United States
| | - Lance T. Dockery
- Department of Chemistry and Biochemistry, University of Maryland Baltimore County (UMBC), Baltimore, Maryland 21250, United States
| | - Yewon J. Pak
- Department of Pharmaceutical Sciences, Center for Nanobiotechnology, University of Maryland, Baltimore, 20 Penn Street, Baltimore, Maryland 21201, United States
| | - Wenjing Li
- Mass Spectrometry Center, University of Maryland School of Pharmacy, Baltimore, Maryland 21201, United States
| | - Maureen A. Kane
- Mass Spectrometry Center, University of Maryland School of Pharmacy, Baltimore, Maryland 21201, United States
| | - Peter Swaan
- Department of Pharmaceutical Sciences, Center for Nanobiotechnology, University of Maryland, Baltimore, 20 Penn Street, Baltimore, Maryland 21201, United States
| | - Marie-Christine Daniel
- Department of Chemistry and Biochemistry, University of Maryland Baltimore County (UMBC), Baltimore, Maryland 21250, United States
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Casset A, Jouhannaud J, Garofalo A, Spiegelhalter C, Nguyen DV, Felder-Flesch D, Pourroy G, Pons F. Macrophage functionality and homeostasis in response to oligoethyleneglycol-coated IONPs: Impact of a dendritic architecture. Int J Pharm 2018; 556:287-300. [PMID: 30557682 DOI: 10.1016/j.ijpharm.2018.12.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 11/29/2018] [Accepted: 12/06/2018] [Indexed: 12/20/2022]
Abstract
The engineering of iron oxide nanoparticles (IONPs) for biomedical use has received great interest over the past decade. In the present study we investigated the biocompatibility of IONPs grafted with linear (2P) or generation 1 (2PG1) or 2 (2PG2) dendronized oligoethyleneglycol units in THP-1-derived macrophages. To evaluate IONP effects on cell functionality and homeostasis, mitochondrial function (MTT assay), membrane permeability (LDH release), inflammation (IL-8), oxidative stress (reduced glutathione, GSH), NLRP3 inflammasome activation (IL-1β) and nanoparticle cellular uptake (intracellular iron content) were quantified after a 4-h or 24-h cell exposure to increasing IONP concentrations (0-300 µg Fe/mL). IONPs coated with a linear molecule, NP10COP@2P, were highly taken up by cells and induced significant dose-dependent IL-8 release, oxidative stress and NLRP3 inflammasome activation. In comparison, IONPs coated with dendrons of generation 1 (NP10COP@2PG1) and 2 (NP10COP@2PG2) exhibited better biocompatibility. Effect of the dendritic architecture of the surface coating was investigated in a kinetic experiment involving cell short-term exposure (30 min or 1 h 30) to the two dendronized IONPs. NP10COP@2PG2 disrupted cellular homeostasis (LDH release, IL-1β and IL-8 secretion) to a greater extend than NP10COP@2PG1, which makes this last IONP the best candidate as MRI contrast or theranostic agent.
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Affiliation(s)
- Anne Casset
- Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France.
| | - Julien Jouhannaud
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux Strasbourg, UMR 7504, F-67000 Strasbourg, France
| | - Antonio Garofalo
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux Strasbourg, UMR 7504, F-67000 Strasbourg, France
| | - Coralie Spiegelhalter
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), INSERM, CNRS, Université de Strasbourg, F-67404 Illkirch, France
| | - Dinh-Vu Nguyen
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux Strasbourg, UMR 7504, F-67000 Strasbourg, France
| | - Delphine Felder-Flesch
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux Strasbourg, UMR 7504, F-67000 Strasbourg, France
| | - Geneviève Pourroy
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux Strasbourg, UMR 7504, F-67000 Strasbourg, France
| | - Françoise Pons
- Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France
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