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Abiodun Daramola O, Bazibuhe Safari J, Omotayo Adeniyi K, Siwe-Noundou X, Margaret Kirkpatrick Dingle L, Lesley Edkins A, Foster Tseki P, Werner Maçedo Krause R. Biocompatible liposome and chitosan-coated CdTe/CdSe/ZnSe multi-core-multi-shell fluorescent nanoprobe for biomedical applications. J Photochem Photobiol A Chem 2024; 454:115714. [DOI: 10.1016/j.jphotochem.2024.115714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2024]
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Coccini T, Caloni F, Russo LA, Villani L, Lonati D, De Simone U. 3D human stem-cell-derived neuronal spheroids for in vitro neurotoxicity testing of methylglyoxal, highly reactive glycolysis byproduct and potent glycating agent. Curr Res Toxicol 2024; 7:100176. [PMID: 38975063 PMCID: PMC11225170 DOI: 10.1016/j.crtox.2024.100176] [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: 12/13/2023] [Revised: 03/27/2024] [Accepted: 06/05/2024] [Indexed: 07/09/2024] Open
Abstract
Human-derived three-dimensional (3D) in vitro models are advanced human cell-based model for their complexity, relevance and application in toxicity testing. Intracellular accumulation of methylglyoxal (MGO), the most potent glycating agent in humans, mainly generated as a by-product of glycolysis, is associated with age-related diseases including neurodegenerative disorders. In our study, 3D human stem-cell-derived neuronal spheroids were set up and applied to evaluate cytotoxic effects after short-term (5 to 48 h) treatments with different MGO concentrations, including low levels, taking into consideration several biochemical endpoints. In MGO-treated neurospheroids, reduced cell growth proliferation and decreased cell viability occurred early from 5-10 μM, and their compactness diminished starting from 100 μM, apparently without affecting spheroid size. MGO markedly caused loss of the neuronal markers MAP-2 and NSE from 10-50 μM, decreased the detoxifying Glo1 enzyme from 50 μM, and activated NF-kB by nuclear translocation. The cytochemical evaluation of the 3D sections showed the presence of necrotic cells with loss of nuclei. Apoptotic cells were observed from 50 μM MGO after 48 h, and from 100 μM after 24 h. MGO (50-10 µM) also induced modifications of the cell-cell and cell-ECM interactions. These effects worsened at the higher concentrations (300-500 µM). In 3D neuronal spheroids, MGO tested concentrations comparable to human samples levels measured in MGO-associated diseases, altered neuronal key signalling endpoints relevant for the pathogenesis of neurodegenerative diseases and aging. The findings also demonstrated that the use of 3D neuronal spheroids of human origin can be useful in a strategy in vitro for testing MGO and other dicarbonyls evaluation.
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Affiliation(s)
- Teresa Coccini
- Istituti Clinici Scientifici Maugeri IRCCS, Laboratory of Clinical and Experimental Toxicology, and Pavia Poison Centre-National Toxicology Information Centre, Toxicology Unit, Pavia, Italy
| | - Francesca Caloni
- Dipartimento di Scienze e Politiche Ambientali (ESP), Università degli Studi di Milano, Milan, Italy
| | | | - Laura Villani
- Istituti Clinici Scientifici Maugeri IRCCS, Pathology Unit, Pavia, Italy
| | - Davide Lonati
- Istituti Clinici Scientifici Maugeri IRCCS, Laboratory of Clinical and Experimental Toxicology, and Pavia Poison Centre-National Toxicology Information Centre, Toxicology Unit, Pavia, Italy
| | - Uliana De Simone
- Istituti Clinici Scientifici Maugeri IRCCS, Laboratory of Clinical and Experimental Toxicology, and Pavia Poison Centre-National Toxicology Information Centre, Toxicology Unit, Pavia, Italy
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3
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De Simone U, Pignatti P, Villani L, Russo LA, Sargenti A, Bonetti S, Buscaglia E, Coccini T. Human Astrocyte Spheroids as Suitable In Vitro Screening Model to Evaluate Synthetic Cannabinoid MAM2201-Induced Effects on CNS. Int J Mol Sci 2023; 24:ijms24021421. [PMID: 36674936 PMCID: PMC9861655 DOI: 10.3390/ijms24021421] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/02/2023] [Accepted: 01/05/2023] [Indexed: 01/12/2023] Open
Abstract
There is growing concern about the consumption of synthetic cannabinoids (SCs), one of the largest groups of new psychoactive substances, its consequence on human health (general population and workers), and the continuous placing of new SCs on the market. Although drug-induced alterations in neuronal function remain an essential component for theories of drug addiction, accumulating evidence indicates the important role of activated astrocytes, whose essential and pleiotropic role in brain physiology and pathology is well recognized. The study aims to clarify the mechanisms of neurotoxicity induced by one of the most potent SCs, named MAM-2201 (a naphthoyl-indole derivative), by applying a novel three-dimensional (3D) cell culture model, mimicking the physiological and biochemical properties of brain tissues better than traditional two-dimensional in vitro systems. Specifically, human astrocyte spheroids, generated from the D384 astrocyte cell line, were treated with different MAM-2201 concentrations (1-30 µM) and exposure times (24-48 h). MAM-2201 affected, in a concentration- and time-dependent manner, the cell growth and viability, size and morphological structure, E-cadherin and extracellular matrix, CB1-receptors, glial fibrillary acidic protein, and caspase-3/7 activity. The findings demonstrate MAM-2201-induced cytotoxicity to astrocyte spheroids, and support the use of this human 3D cell-based model as species-specific in vitro tool suitable for the evaluation of neurotoxicity induced by other SCs.
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Affiliation(s)
- Uliana De Simone
- Laboratory of Clinical and Experimental Toxicology, and Pavia Poison Centre-National Toxicology Information Centre, Toxicology Unit, Istituti Clinici Scientifici Maugeri IRCCS, 27100 Pavia, Italy
| | - Patrizia Pignatti
- Allergy and Immunology Unit, Istituti Clinici Scientifici Maugeri IRCCS, 27100 Pavia, Italy
| | - Laura Villani
- Pathology Unit, Istituti Clinici Scientifici Maugeri IRCCS, 27100 Pavia, Italy
| | | | | | - Simone Bonetti
- CNR-ISMN, Institute for Nanostructured Materials, 40129 Bologna, Italy
| | - Eleonora Buscaglia
- Laboratory of Clinical and Experimental Toxicology, and Pavia Poison Centre-National Toxicology Information Centre, Toxicology Unit, Istituti Clinici Scientifici Maugeri IRCCS, 27100 Pavia, Italy
| | - Teresa Coccini
- Laboratory of Clinical and Experimental Toxicology, and Pavia Poison Centre-National Toxicology Information Centre, Toxicology Unit, Istituti Clinici Scientifici Maugeri IRCCS, 27100 Pavia, Italy
- Correspondence: ; Tel.: +39-0382-592416
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Quantum Dots Mediated Imaging and Phototherapy in Cancer Spheroid Models: State of the Art and Perspectives. Pharmaceutics 2022; 14:pharmaceutics14102136. [PMID: 36297571 PMCID: PMC9611360 DOI: 10.3390/pharmaceutics14102136] [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: 09/09/2022] [Revised: 10/03/2022] [Accepted: 10/05/2022] [Indexed: 11/16/2022] Open
Abstract
Quantum Dots (QDs) are fluorescent nanoparticles known for their exceptional optical properties, i.e., high fluorescence emission, photostability, narrow emission spectrum, and broad excitation wavelength. These properties make QDs an exciting choice for bioimaging applications, notably in cancer imaging. Challenges lie in their ability to specifically label targeted cells. Numerous studies have been carried out with QDs coupled to various ligands like peptides, antibodies, aptamers, etc., to achieve efficient targeting. Most studies were conducted in vitro with two-dimensional cell monolayers (n = 8902) before evolving towards more sophisticated models. Three-dimensional multicellular tumor models better recapitulate in vivo conditions by mimicking cell-to-cell and cell-matrix interactions. To date, only few studies (n = 34) were conducted in 3D in vitro models such as spheroids, whereas these models could better represent QDs behavior in tumors compared to monolayers. Thus, the purpose of this review is to present a state of the art on the studies conducted with Quantum Dots on spheroid models for imaging and phototherapy purposes.
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Henrique RBL, Lima RRM, Monteiro CAP, Oliveira WF, Pereira G, Cabral Filho PE, Fontes A. Advances in the study of spheroids as versatile models to evaluate biological interactions of inorganic nanoparticles. Life Sci 2022; 302:120657. [PMID: 35609631 DOI: 10.1016/j.lfs.2022.120657] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/10/2022] [Accepted: 05/18/2022] [Indexed: 12/26/2022]
Abstract
Spheroids are in vitro three-dimensional multicellular microstructures able to mimic the biological microenvironment, including the complexity of tumor architecture. Therefore, results closer to those expected for in vivo organisms can be reached using spheroids compared to the cell culture monolayer model. Inorganic nanoparticles (NPs) have also been playing relevant roles in the comprehension of biological processes. Moreover, they have been probed as novel diagnostic and therapeutical nanosystems. In this context, in this review, we present applications, published in the last five years, which show that spheroids can be versatile models to study and evaluate biological interactions involving inorganic NPs. Applications of spheroids associated with (i) basic studies to assess the penetration profile of nanostructures, (ii) the evaluation of NP toxicity, and (iii) NP-based therapeutical approaches are described. Fundamentals of spheroids and their formation methods are also included. We hope that this review can be a reference and guide future investigations related to this interesting three-dimensional biological model, favoring advances to Nanobiotechnology.
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Affiliation(s)
- Rafaella B L Henrique
- Departamento de Biofísica e Radiobiologia, Centro de Biociências, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Rennan R M Lima
- Departamento de Biofísica e Radiobiologia, Centro de Biociências, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Camila A P Monteiro
- Departamento de Biofísica e Radiobiologia, Centro de Biociências, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Weslley F Oliveira
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Goreti Pereira
- Departamento de Química Fundamental, Centro de Ciências Exatas e da Natureza, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Paulo E Cabral Filho
- Departamento de Biofísica e Radiobiologia, Centro de Biociências, Universidade Federal de Pernambuco, Recife, PE, Brazil.
| | - Adriana Fontes
- Departamento de Biofísica e Radiobiologia, Centro de Biociências, Universidade Federal de Pernambuco, Recife, PE, Brazil.
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Hashemzadeh H, Kelkawi AHA, Allahverdi A, Rothbauer M, Ertl P, Naderi-Manesh H. Fingerprinting Metabolic Activity and Tissue Integrity of 3D Lung Cancer Spheroids under Gold Nanowire Treatment. Cells 2022; 11:478. [PMID: 35159286 PMCID: PMC8834455 DOI: 10.3390/cells11030478] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/22/2022] [Accepted: 01/24/2022] [Indexed: 12/12/2022] Open
Abstract
Inadequacy of most animal models for drug efficacy assessments has led to the development of improved in vitro models capable of mimicking in vivo exposure scenarios. Among others, 3D multicellular spheroid technology is considered to be one of the promising alternatives in the pharmaceutical drug discovery process. In addition to its physiological relevance, this method fulfills high-throughput and low-cost requirements for preclinical cell-based assays. Despite the increasing applications of spheroid technology in pharmaceutical screening, its application, in nanotoxicity testing is still in its infancy due to the limited penetration and uptake rates into 3D-cell assemblies. To gain a better understanding of gold nanowires (AuNWs) interactions with 3D spheroids, a comparative study of 2D monolayer cultures and 3D multicellular spheroids was conducted using two lung cancer cell lines (A549 and PC9). Cell apoptosis (live/dead assay), metabolic activity, and spheroid integrity were evaluated following exposure to AuNWs at different dose-time manners. Results revealed a distinct different cellular response between 2D and 3D cell cultures during AuNWs treatment including metabolic rates, cell viability, dose-response curves and, uptake rates. Our data also highlighted further need for more physiologically relevant tissue models to investigate in depth nanomaterial-biology interactions. It is important to note that higher concentrations of AuNWs with lower exposure times and lower concentrations of AuNWs with higher exposure times of 3 days resulted in the loss of spheroid integrity by disrupting cell-cell contacts. These findings could help to increase the understanding of AuNWs-induced toxicity on tissue levels and also contribute to the establishment of new analytical approaches for toxicological and drug screening studies.
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Affiliation(s)
- Hadi Hashemzadeh
- Nanobiotechnology Department, Faculty of Biosciences, Tarbiat Modares University, Tehran 14115-111, Iran; (H.H.); (A.H.A.K.)
| | - Ali Hamad Abd Kelkawi
- Nanobiotechnology Department, Faculty of Biosciences, Tarbiat Modares University, Tehran 14115-111, Iran; (H.H.); (A.H.A.K.)
| | - Abdollah Allahverdi
- Biophysics Department, Faculty of Biosciences, Tarbiat Modares University, Tehran 14115-111, Iran;
| | - Mario Rothbauer
- Faculty of Technical Chemistry, Vienna University of Technology (TUW), Getreidemarkt 9/163-164, 1060 Vienna, Austria;
- Orthopedic Microsystems Group, Karl Chiari Lab for Orthopedic Biology, Department of Orthopedics and Trauma Surgery, Medical University of Vienna, 1090 Vienna, Austria
| | - Peter Ertl
- Faculty of Technical Chemistry, Vienna University of Technology (TUW), Getreidemarkt 9/163-164, 1060 Vienna, Austria;
| | - Hossein Naderi-Manesh
- Nanobiotechnology Department, Faculty of Biosciences, Tarbiat Modares University, Tehran 14115-111, Iran; (H.H.); (A.H.A.K.)
- Biophysics Department, Faculty of Biosciences, Tarbiat Modares University, Tehran 14115-111, Iran;
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De Simone U, Croce AC, Pignatti P, Buscaglia E, Caloni F, Coccini T. Three dimensional spheroid cell culture of human MSC‐derived neuron‐like cells: new in vitro model to assess magnetite nanoparticle‐induced neurotoxicity effects. J Appl Toxicol 2022; 42:1230-1252. [DOI: 10.1002/jat.4292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/19/2022] [Accepted: 01/20/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Uliana De Simone
- Laboratory of Clinical and Experimental Toxicology, and Pavia Poison Centre ‐ National Toxicology Information Centre, Toxicology Unit, Istituti Clinici Scientifici Maugeri IRCCS Pavia Italy
| | - Anna Cleta Croce
- Institute of Molecular Genetics, Italian National Research Council (CNR) Pavia Italy
- Department of Biology & Biotechnology University of Pavia Pavia Italy
| | - Patrizia Pignatti
- Allergy and Immunology Unit, Istituti Clinici Scientifici Maugeri IRCCS Pavia Italy
| | - Eleonora Buscaglia
- Laboratory of Clinical and Experimental Toxicology, and Pavia Poison Centre ‐ National Toxicology Information Centre, Toxicology Unit, Istituti Clinici Scientifici Maugeri IRCCS Pavia Italy
| | - Francesca Caloni
- Department of Health, Animal Science and Food Safety Universitá degli Studi di Milano Milan Italy
| | - Teresa Coccini
- Laboratory of Clinical and Experimental Toxicology, and Pavia Poison Centre ‐ National Toxicology Information Centre, Toxicology Unit, Istituti Clinici Scientifici Maugeri IRCCS Pavia Italy
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Martinent R, Tawffik S, López-Andarias J, Moreau D, Laurent Q, Matile S. Dithiolane quartets: thiol-mediated uptake enables cytosolic delivery in deep tissue. Chem Sci 2021; 12:13922-13929. [PMID: 34760179 PMCID: PMC8549803 DOI: 10.1039/d1sc04828g] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 09/20/2021] [Indexed: 12/12/2022] Open
Abstract
The cytosolic delivery of various substrates in 3D multicellular spheroids by thiol-mediated uptake is reported. This is important because most orthodox systems, including polycationic cell-penetrating peptides, fail to deliver efficiently into deep tissue. The grand principles of supramolecular chemistry, that is the pH dependence of dynamic covalent disulfide exchange with known thiols on the transferrin receptor, are proposed to account for transcytosis into deep tissue, while the known but elusive exchange cascades along the same or other partners assure cytosolic delivery in kinetic competition. For quantitative detection in the cytosol, the 2D chloroalkane penetration assay (CAPA) is translated to 3D deep tissue. The targeted delivery of quantum dots, otherwise already troublesome in 2D culture, and the controlled release of mechanophores are realized to exemplify the power of thiol-mediated uptake into spheroids. As transporters, dithiolane quartets on streptavidin templates are introduced as modular motifs. Built from two amino acids only, the varied stereochemistry and peptide sequence are shown to cover maximal functional space with minimal structural change, i.e., constitutional isomers. Reviving a classic in peptide chemistry, this templated assembly of β quartets promises to expand streptavidin biotechnology in new directions, while the discovery of general cytosolic delivery in deep tissue as an intrinsic advantage further enhances the significance and usefulness of thiol-mediated uptake.
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Affiliation(s)
- Rémi Martinent
- Department of Organic Chemistry, University of Geneva Geneva Switzerland https://www.unige.ch/sciences/chiorg/matile/ +41 22 379 6523
| | - Salman Tawffik
- Department of Organic Chemistry, University of Geneva Geneva Switzerland https://www.unige.ch/sciences/chiorg/matile/ +41 22 379 6523
| | - Javier López-Andarias
- Department of Organic Chemistry, University of Geneva Geneva Switzerland https://www.unige.ch/sciences/chiorg/matile/ +41 22 379 6523
| | - Dimitri Moreau
- Department of Organic Chemistry, University of Geneva Geneva Switzerland https://www.unige.ch/sciences/chiorg/matile/ +41 22 379 6523
| | - Quentin Laurent
- Department of Organic Chemistry, University of Geneva Geneva Switzerland https://www.unige.ch/sciences/chiorg/matile/ +41 22 379 6523
| | - Stefan Matile
- Department of Organic Chemistry, University of Geneva Geneva Switzerland https://www.unige.ch/sciences/chiorg/matile/ +41 22 379 6523
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Prasad M, Kumar R, Buragohain L, Kumari A, Ghosh M. Organoid Technology: A Reliable Developmental Biology Tool for Organ-Specific Nanotoxicity Evaluation. Front Cell Dev Biol 2021; 9:696668. [PMID: 34631696 PMCID: PMC8495170 DOI: 10.3389/fcell.2021.696668] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 08/13/2021] [Indexed: 12/14/2022] Open
Abstract
Engineered nanomaterials are bestowed with certain inherent physicochemical properties unlike their parent materials, rendering them suitable for the multifaceted needs of state-of-the-art biomedical, and pharmaceutical applications. The log-phase development of nano-science along with improved "bench to beside" conversion carries an enhanced probability of human exposure with numerous nanoparticles. Thus, toxicity assessment of these novel nanoscale materials holds a key to ensuring the safety aspects or else the global biome will certainly face a debacle. The toxicity may span from health hazards due to direct exposure to indirect means through food chain contamination or environmental pollution, even causing genotoxicity. Multiple ways of nanotoxicity evaluation include several in vitro and in vivo methods, with in vitro methods occupying the bulk of the "experimental space." The underlying reason may be multiple, but ethical constraints in in vivo animal experiments are a significant one. Two-dimensional (2D) monoculture is undoubtedly the most exploited in vitro method providing advantages in terms of cost-effectiveness, high throughput, and reproducibility. However, it often fails to mimic a tissue or organ which possesses a defined three-dimensional structure (3D) along with intercellular communication machinery. Instead, microtissues such as spheroids or organoids having a precise 3D architecture and proximate in vivo tissue-like behavior can provide a more realistic evaluation than 2D monocultures. Recent developments in microfluidics and bioreactor-based organoid synthesis have eased the difficulties to prosper nano-toxicological analysis in organoid models surpassing the obstacle of ethical issues. The present review will enlighten applications of organoids in nanotoxicological evaluation, their advantages, and prospects toward securing commonplace nano-interventions.
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Affiliation(s)
- Minakshi Prasad
- Department of Animal Biotechnology, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, India
| | - Rajesh Kumar
- Department of Veterinary Physiology and Biochemistry, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, India
| | - Lukumoni Buragohain
- Department of Animal Biotechnology, College of Veterinary Science, Assam Agricultural University, Guwahati, India
| | | | - Mayukh Ghosh
- Department of Veterinary Physiology and Biochemistry, RGSC, Banaras Hindu University, Varanasi, India
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Gibler P, Gimble J, Hamel K, Rogers E, Henderson M, Wu X, Olesky S, Frazier T. Human Adipose-Derived Stromal/Stem Cell Culture and Analysis Methods for Adipose Tissue Modeling In Vitro: A Systematic Review. Cells 2021; 10:1378. [PMID: 34204869 PMCID: PMC8227575 DOI: 10.3390/cells10061378] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 12/11/2022] Open
Abstract
Human adipose-derived stromal/stem cells (hASC) are widely used for in vitro modeling of physiologically relevant human adipose tissue. These models are useful for the development of tissue constructs for soft tissue regeneration and 3-dimensional (3D) microphysiological systems (MPS) for drug discovery. In this systematic review, we report on the current state of hASC culture and assessment methods for adipose tissue engineering using 3D MPS. Our search efforts resulted in the identification of 184 independent records, of which 27 were determined to be most relevant to the goals of the present review. Our results demonstrate a lack of consensus on methods for hASC culture and assessment for the production of physiologically relevant in vitro models of human adipose tissue. Few studies have assessed the impact of different 3D culture conditions on hASC adipogenesis. Additionally, there has been a limited use of assays for characterizing the functionality of adipose tissue in vitro. Results from this study suggest the need for more standardized culture methods and further analysis on in vitro tissue functionality. These will be necessary to validate the utility of 3D MPS as an in vitro model to reduce, refine, and replace in vivo experiments in the drug discovery regulatory process.
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Affiliation(s)
- Peyton Gibler
- Obatala Sciences Inc., New Orleans, LA 70148, USA; (P.G.); (K.H.); (E.R.); (M.H.); (X.W.); (S.O.); (T.F.)
| | - Jeffrey Gimble
- Obatala Sciences Inc., New Orleans, LA 70148, USA; (P.G.); (K.H.); (E.R.); (M.H.); (X.W.); (S.O.); (T.F.)
- Department of Structural and Cell Biology, Tulane University School of Medicine, New Orleans, LA 70112, USA
- Department of Medicine, Tulane University School of Medicine, New Orleans, LA 70112, USA
- Department of Surgery, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Katie Hamel
- Obatala Sciences Inc., New Orleans, LA 70148, USA; (P.G.); (K.H.); (E.R.); (M.H.); (X.W.); (S.O.); (T.F.)
| | - Emma Rogers
- Obatala Sciences Inc., New Orleans, LA 70148, USA; (P.G.); (K.H.); (E.R.); (M.H.); (X.W.); (S.O.); (T.F.)
| | - Michael Henderson
- Obatala Sciences Inc., New Orleans, LA 70148, USA; (P.G.); (K.H.); (E.R.); (M.H.); (X.W.); (S.O.); (T.F.)
| | - Xiying Wu
- Obatala Sciences Inc., New Orleans, LA 70148, USA; (P.G.); (K.H.); (E.R.); (M.H.); (X.W.); (S.O.); (T.F.)
| | - Spencer Olesky
- Obatala Sciences Inc., New Orleans, LA 70148, USA; (P.G.); (K.H.); (E.R.); (M.H.); (X.W.); (S.O.); (T.F.)
| | - Trivia Frazier
- Obatala Sciences Inc., New Orleans, LA 70148, USA; (P.G.); (K.H.); (E.R.); (M.H.); (X.W.); (S.O.); (T.F.)
- Department of Structural and Cell Biology, Tulane University School of Medicine, New Orleans, LA 70112, USA
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Kumari A, Sharma A, Sharma R, Malairaman U, Raj Singh R. Biocompatible and fluorescent water based NIR emitting CdTe quantum dot probes for biomedical applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 248:119206. [PMID: 33272844 DOI: 10.1016/j.saa.2020.119206] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 10/31/2020] [Accepted: 11/06/2020] [Indexed: 06/12/2023]
Abstract
Proficient fluorescent-characteristics, cytotoxicity-behavior and antimicrobial-activity of near-infrared-emitting (NIR) CdTe quantum dots (QDs) were studied sumptuously as these QDs are having an excellence in deep-tissue dissemination of light. These, NIR-emitting QDs were synthesized using aqueous method, utilizing 3-mercaptopropionic-acid (3-MPA) as a stabilizer; it controls leakage of Cd and Te ions from CdTe QDs. However, encapsulation by polymers also prevents the same by seizing toxic consequence of prepared QDs which was confirmed from cytotoxicity studies. Therefore, easy modification according to biological environment of these encapsulated CdTe QDs can serve in bio imaging and distribution. Antimicrobial study investigated the toxic effects of QDs against bacterial strains and support cytotoxicity studies and showing maximum 26 mm zone of inhibition against bacterial strain. These, NIR fluorescent QDs possess many attractive optical properties over the standard fluorescent probes (organic dyes) and can replace these dyes, as there is no specific dye which works in NIR range.
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Affiliation(s)
- Asha Kumari
- Nanotechnology Laboratory, Department of Physics and Materials Science, Jaypee University of Information Technology, Waknaghat, Solan 173234, India; Department of Chemistry, Career Point University, Hamirpur 176041, India
| | - Arun Sharma
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan 173234, India
| | - Rahul Sharma
- Department of Chemistry, Career Point University, Hamirpur 176041, India
| | - Udayabanu Malairaman
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan 173234, India
| | - Ragini Raj Singh
- Nanotechnology Laboratory, Department of Physics and Materials Science, Jaypee University of Information Technology, Waknaghat, Solan 173234, India.
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12
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NIR Imaging of the Integrin-Rich Head and Neck Squamous Cell Carcinoma Using Ternary Copper Indium Selenide/Zinc Sulfide-Based Quantum Dots. Cancers (Basel) 2020; 12:cancers12123727. [PMID: 33322532 PMCID: PMC7764319 DOI: 10.3390/cancers12123727] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/08/2020] [Accepted: 12/08/2020] [Indexed: 12/20/2022] Open
Abstract
The efficient intraoperative identification of cancers requires the development of the bright, minimally-toxic, tumor-specific near-infrared (NIR) probes as contrast agents. Luminescent semiconductor quantum dots (QDs) offer several unique advantages for in vivo cellular imaging by providing bright and photostable fluorescent probes. Here, we present the synthesis of ZnCuInSe/ZnS core/shell QDs emitting in NIR (~750 nm) conjugated to NAVPNLRGDLQVLAQKVART (A20FMDV2) peptide for targeting αvβ6 integrin-rich head and neck squamous cell carcinoma (HNSCC). Integrin αvβ6 is usually not detectable in nonpathological tissues, but is highly upregulated in HNSCC. QD-A20 showed αvβ6 integrin-specific binding in two-dimension (2D) monolayer and three-dimension (3D) spheroid in vitro HNSCC models. QD-A20 exhibit limited penetration (ca. 50 µm) in stroma-rich 3D spheroids. Finally, we demonstrated the potential of these QDs by time-gated fluorescence imaging of stroma-rich 3D spheroids placed onto mm-thick tissue slices to mimic imaging conditions in tissues. Overall, QD-A20 could be considered as highly promising nanoprobes for NIR bioimaging and imaging-guided surgery.
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Liu N, Tang M. Toxicity of different types of quantum dots to mammalian cells in vitro: An update review. JOURNAL OF HAZARDOUS MATERIALS 2020; 399:122606. [PMID: 32516645 DOI: 10.1016/j.jhazmat.2020.122606] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/23/2020] [Accepted: 03/27/2020] [Indexed: 05/18/2023]
Abstract
Currently, there are a great quantity type of quantum dots (QDs) that has been developed by researchers. Depending on the core material, they can be roughly divided into cadmium, silver, indium, carbon and silicon QDs. And studies on the toxicity of QDs are also increasing rapidly, but in vivo tests in model animals fail to reach a consistent conclusion. Therefore, we review the literatures dealing with the cytotoxicity of QDs in mammalian cells in vitro. After a short summary of the application characteristics of five types of QDs, the fate of QDs in cells will be discussed, ranging from the uptake, transportation, sublocation and excretion. A substantial part of the review will be focused on in vitro toxicity, in which the type of QDs is combined with their adverse effect and toxic mechanism. Because of their different luminescent properties, different subcellular fate, and different degree of cytotoxicity, we provide an overview on the balance of optical stability and biocompatibility of QDs and give a short outlook on future direction of cytotoxicology of QDs.
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Affiliation(s)
- Na Liu
- Key Laboratory of Environmental Medicine & Engineering, Ministry of Education, School of Public Health, Southeast University, 87 Ding Jia Qiao, Nanjing 210009, PR China.
| | - Meng Tang
- Key Laboratory of Environmental Medicine & Engineering, Ministry of Education, School of Public Health, Southeast University, 87 Ding Jia Qiao, Nanjing 210009, PR China.
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Galdiero E, Siciliano A, Lombardi L, Falanga A, Galdiero S, Martucci F, Guida M. Quantum dots functionalized with gH625 attenuate QDs oxidative stress and lethality in Caenorhabditis elegans: a model system. ECOTOXICOLOGY (LONDON, ENGLAND) 2020; 29:156-162. [PMID: 31927676 DOI: 10.1007/s10646-019-02158-3] [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] [Accepted: 12/24/2019] [Indexed: 06/10/2023]
Abstract
Nanomaterials have revolutionized many scientific fields and are widely applied to address environmental problems and to develop novel health care strategies. However, their mechanism of action is still poorly understood. Several nanomaterials for medical applications are based on quantum dots (QDs). Despite their amazing physico-chemical properties, quantum dots display significant adverse effects. In the present study, the effects of QDs on the motor nervous system of nematodes Caenorhabditis elegans have been investigated as a non-mammalian alternative model. We also explored the possibility of modifying the toxicity of QDs by coating with a cell-penetrating peptide gH625 and thus we analysed the effects determined by QDs-gH625 complexes on the nematodes. With this work, we have demonstrated, by in vivo experiments, that the peptide gH625 is able to reduce the side effects of metallic nanoparticle making them more suitable for medical applications.
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Affiliation(s)
- Emilia Galdiero
- Department of Biology, University of Naples "Federico II"- Monte Sant'Angelo, 80126, Napoli, Italy
| | - Antonietta Siciliano
- Department of Biology, University of Naples "Federico II"- Monte Sant'Angelo, 80126, Napoli, Italy.
| | - Lucia Lombardi
- Department of Pharmacy, CiRPEB-University of Naples "Federico II", Via Mezzocannone 16, 80134, Napoli, Italy
| | - Annarita Falanga
- Department of Agricultural Science, University of Naples Federico II, via Università 100, 80055, Portici, Napoli, Italy
| | - Stefania Galdiero
- Department of Pharmacy, CiRPEB-University of Naples "Federico II", Via Mezzocannone 16, 80134, Napoli, Italy
| | - Francesca Martucci
- Department of Biology, University of Naples "Federico II"- Monte Sant'Angelo, 80126, Napoli, Italy
| | - Marco Guida
- Department of Biology, University of Naples "Federico II"- Monte Sant'Angelo, 80126, Napoli, Italy
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15
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Ag Seleci D, Maurer V, Stahl F, Scheper T, Garnweitner G. Rapid Microfluidic Preparation of Niosomes for Targeted Drug Delivery. Int J Mol Sci 2019; 20:ijms20194696. [PMID: 31546717 PMCID: PMC6801367 DOI: 10.3390/ijms20194696] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 09/16/2019] [Accepted: 09/20/2019] [Indexed: 12/31/2022] Open
Abstract
Niosomes are non-ionic surfactant-based vesicles with high promise for drug delivery applications. They can be rapidly prepared via microfluidics, allowing their reproducible production without the need of a subsequent size reduction step, by controlled mixing of two miscible phases of an organic (lipids dissolved in alcohol) and an aqueous solution in a microchannel. The control of niosome properties and the implementation of more complex functions, however, thus far are largely unknown for this method. Here we investigate microfluidics-based manufacturing of topotecan (TPT)-loaded polyethylene glycolated niosomes (PEGNIO). The flow rate ratio of the organic and aqueous phases was varied and optimized. Furthermore, the surface of TPT-loaded PEGNIO was modified with a tumor homing and penetrating peptide (tLyp-1). The designed nanoparticular drug delivery system composed of PEGNIO-TPT-tLyp-1 was fabricated for the first time via microfluidics in this study. The physicochemical properties were determined through dynamic light scattering (DLS) and zeta potential analysis. In vitro studies of the obtained formulations were performed on human glioblastoma (U87) cells. The results clearly indicated that tLyp-1-functionalized TPT-loaded niosomes could significantly improve anti-glioma treatment.
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Affiliation(s)
- Didem Ag Seleci
- Institute for Particle Technology (iPAT), Technische Universität Braunschweig, 38104 Braunschweig, Germany.
- Centre for Pharmaceutical Engineering Research (PVZ), Technische Universität Braunschweig, 38106 Braunschweig, Germany.
| | - Viktor Maurer
- Institute for Particle Technology (iPAT), Technische Universität Braunschweig, 38104 Braunschweig, Germany.
- Centre for Pharmaceutical Engineering Research (PVZ), Technische Universität Braunschweig, 38106 Braunschweig, Germany.
| | - Frank Stahl
- Institute for Technical Chemistry, Leibniz University Hannover, 30167 Hannover, Germany.
| | - Thomas Scheper
- Institute for Technical Chemistry, Leibniz University Hannover, 30167 Hannover, Germany.
| | - Georg Garnweitner
- Institute for Particle Technology (iPAT), Technische Universität Braunschweig, 38104 Braunschweig, Germany.
- Centre for Pharmaceutical Engineering Research (PVZ), Technische Universität Braunschweig, 38106 Braunschweig, Germany.
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16
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Hao M, Liu R. Molecular mechanism of CAT and SOD activity change under MPA-CdTe quantum dots induced oxidative stress in the mouse primary hepatocytes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 220:117104. [PMID: 31141778 DOI: 10.1016/j.saa.2019.05.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 04/23/2019] [Accepted: 05/09/2019] [Indexed: 06/09/2023]
Abstract
Quantum dots (QDs) are a unique class of nano-materials that have attractive potentials in biological and biomedical applications, and the concern on their biosafety is concomitantly increasing. The overproduction of reactive oxygen species (ROS) is considered to be one of the reasons that induce the in vitro QDs induced toxic response. However, the exact molecular pathways underlying these effects remain poorly clarified and few studies combine the molecular results with the cellular results to explore the cytotoxic effect of QDs. The aim of the present study was to evaluate the effect of mercaptopropionic acid (MPA) capped CdTe QDs on the structures and functions of two antioxidant enzymes, catalase (CAT) superoxide dismutase (SOD), and then associated with the cytotoxic effects of oxidative stress induced by MPA-CdTe QDs on mouse hepatocytes to define the toxic underlying mechanism. The molecular experiment results showed that the exposure of QDs significantly changed the conformation of CAT and SOD, and leading to the promotion of molecular CAT activity and the inhibition of molecular SOD activity. Meanwhile, the cellular experiment results demonstrated that exposure to QDs changed the activities of CAT and SOD in mouse primary hepatocytes, led to the break of redox balance and resulted in the oxidative stress and cell apoptosis. This study explores the effects of MPA- CdTe QDs to the CAT and SOD molecules and then demonstrates the subsequent QDs toxic effects at a cellular level, revealing their potential risk in biomedical applications.
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Affiliation(s)
- Minglu Hao
- School of Environmental Science and Engineering, Shandong University, China -America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China -America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China.
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17
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Hao M, Liu R. Conformational and functional effects of MPA-CdTe quantum dots on SOD: Evaluating the mechanism of oxidative stress induced by quantum dots in the mouse nephrocytes. J Mol Recognit 2019; 32:e2783. [PMID: 31044464 DOI: 10.1002/jmr.2783] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 03/01/2019] [Accepted: 03/19/2019] [Indexed: 01/28/2023]
Abstract
The application of quantum dots (QDs) is restricted by the biosafety issue. QDs contribute to the adverse effects of organisms probably because of the ability to induce oxidative stress via changing the activity of antioxidant enzyme, for example, superoxide dismutase (SOD). But the underlying molecular mechanisms still remain unclear. This study investigated the harmful effects of oxidative stress induced by mercaptopropionic acid capped CdTe QDs (MPA-CdTe QDs) on the mouse primary nephrocytes as well as the structure and function of SOD molecule and explored the underlying molecular mechanism. After 24-hour MPA-CdTe QD exposure, the activation level of extracellular regulated protein kinase (ERK) signaling pathway and cysteinyl-directed aspartate-specific proteases (Caspases) significantly increased, which led to the increasing level of reactive oxygen species (ROS) and cell apoptosis; the group pretreated with ROS scavenger N-acetyl-L-cysteine (NAC) significantly reduced the apoptotic cell percentage, indicating that ROS played a critical role in QD-induced cytotoxicity. Further molecular experiments showed that the interacting processes between the MPA-CdTe QDs and SOD were spontaneous which changed the conformation, secondary structure of SOD. The interaction significantly resulted in the tightening of polypeptide chains and the shrinkage of SOD, leading to the inhibition of molecular SOD activity. This study demonstrates the adverse effects of QDs, revealing their potential risk in biomedical applications.
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Affiliation(s)
- Minglu Hao
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment and Health, Qingdao, China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment and Health, Qingdao, China
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18
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Fleddermann J, Susewind J, Peuschel H, Koch M, Tavernaro I, Kraegeloh A. Distribution of SiO 2 nanoparticles in 3D liver microtissues. Int J Nanomedicine 2019; 14:1411-1431. [PMID: 30863069 PMCID: PMC6390853 DOI: 10.2147/ijn.s189888] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Introduction Nanoparticles (NPs) are used in numerous products in technical fields and biomedicine; their potential adverse effects have to be considered in order to achieve safe applications. Besides their distribution in tissues, organs, and cellular localization, their impact and penetration during the process of tissue formation occurring in vivo during liver regeneration are critical steps for establishment of safe nanomaterials. Materials and methods In this study, 3D cell culture of human hepatocarcinoma cells (HepG2) was used to generate cellular spheroids, serving as in vitro liver microtissues. In order to determine their differential distribution and penetration depth in HepG2 spheroids, SiO2 NPs were applied either during or after spheroid formation. The NP penetration was comprehensively studied using confocal laser scanning microscopy and scanning electron microscopy. Results Spheroids were exposed to 100 µg mL−1 SiO2 NPs either at the beginning of spheroid formation, or during or after formation of spheroids. Microscopy analyses revealed that NP penetration into the spheroid is limited. During and after spheroid formation, SiO2 NPs penetrated about 20 µm into the spheroids, corresponding to about three cell layers. In contrast, because of the addition of SiO2 NPs simultaneously to cell seeding, NP agglomerates were located also in the spheroid center. Application of SiO2 NPs during the process of spheroid formation had no impact on final spheroid size. Conclusion Understanding the distribution of NPs in tissues is essential for biomedical applications. The obtained results indicate that NPs show only limited penetration into already formed tissue, which is probably caused by the alteration of the tissue structure and cell packing density during the process of spheroid formation.
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Affiliation(s)
- Jana Fleddermann
- INM - Leibniz Institute for New Materials, Saarbrücken, Germany,
| | | | - Henrike Peuschel
- INM - Leibniz Institute for New Materials, Saarbrücken, Germany,
| | - Marcus Koch
- INM - Leibniz Institute for New Materials, Saarbrücken, Germany,
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Soheyli E, Sahraei R, Nabiyouni G, Nazari F, Tabaraki R, Ghaemi B. Luminescent, low-toxic and stable gradient-alloyed Fe:ZnSe(S)@ZnSe(S) core:shell quantum dots as a sensitive fluorescent sensor for lead ions. NANOTECHNOLOGY 2018; 29:445602. [PMID: 30106010 DOI: 10.1088/1361-6528/aada29] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In this paper, an aqueous-based approach is introduced for facile, fast, and green synthesis of gradient-alloyed Fe-doped ZnSe(S)@ZnSe(S) core:shell quantum dots (QDs) with intense and stable emission. Co-utilization of co-nucleation and growth doping strategies, along with systematic optimization of emission intensity, provide a well-controllable/general method to achieve internally doped QDs (d-dots) with intense emission. Results indicate that the alloyed ZnSe(S)@ZnSe(S) core:shell QDs have a gradient structure that consists of a Se-rich core and a S-rich shell. This gradient structure cannot only passivate the core d-dots by means of the wider band gap S-rich shell, but also minimizes the lattice mismatch between alloyed core-shell structures. Using this novel strategy and utilizing the wider band gap S-rich shell can obviously increase the cyan emission intensity and also drastically improve the emission stability against chemical and optical corrosion. Furthermore, the cytotoxicity experiments indicate that the obtained d-dots are nontoxic nanomaterials, and thus they can be considered as a promising alternative to conventional Cd-based QDs for fluorescent probes in biological fields. Finally, it is demonstrated that the present low-toxicity and gradient-alloyed core:shell d-dots can be used as sensitive chemical detectors for Pb2+ ions with excellent selectivity, small detection limit, and rapid response time.
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Affiliation(s)
- Ehsan Soheyli
- Department of Physics, Faculty of Science, Arak University, Arak 3815688394, Iran. Institute of Nanoscience and Nanotechnology, Arak University, Arak, Iran. Department of Chemistry, Faculty of Science, Ilam University, 65315-516, Ilam, Iran
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Chen G, Zhang Y, Li C, Huang D, Wang Q, Wang Q. Recent Advances in Tracking the Transplanted Stem Cells Using Near-Infrared Fluorescent Nanoprobes: Turning from the First to the Second Near-Infrared Window. Adv Healthc Mater 2018; 7:e1800497. [PMID: 30019509 DOI: 10.1002/adhm.201800497] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 06/22/2018] [Indexed: 12/29/2022]
Abstract
Stem cell-based regenerative medicine has attracted tremendous attention for its great potential to treat numerous incurable diseases. Tracking and understanding the fate and regenerative capabilities of transplanted stem cells is vital for improving the safety and therapeutic efficacy of stem cell-based therapy, therefore accelerating the clinical application of stem cells. Fluorescent nanoparticles (NPs) have been widely used for in vivo tracking of the transplanted stem cells. Among these fluorescent NPs, near-infrared (NIR) NPs have greatly improved the sensitivity, tissue penetration depth, spatial and temporal resolutions of the fluorescence imaging-based stem cell tracking technologies due to the reduced absorption, scattering, and autofluorescence of NIR fluorescence in tissues. Here, this review summarizes the recent studies regarding the tracking of transplanted stem cells using NIR NPs and emphasizes the recent advances of fluorescence imaging in the second NIR window (NIR-II, 1000-1700 nm). Furthermore, the challenges and future prospects of the NIR NP-based technologies are also discussed.
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Affiliation(s)
- Guangcun Chen
- CAS Key Laboratory of Nano-Bio Interface; Division of Nanobiomedicine and i -Lab; CAS Center for Excellence in Brain Science; Suzhou Institute of Nano-Tech and Nano-Bionics; Chinese Academy of Sciences; Suzhou 215123 China
| | - Yejun Zhang
- CAS Key Laboratory of Nano-Bio Interface; Division of Nanobiomedicine and i -Lab; CAS Center for Excellence in Brain Science; Suzhou Institute of Nano-Tech and Nano-Bionics; Chinese Academy of Sciences; Suzhou 215123 China
| | - Chunyan Li
- CAS Key Laboratory of Nano-Bio Interface; Division of Nanobiomedicine and i -Lab; CAS Center for Excellence in Brain Science; Suzhou Institute of Nano-Tech and Nano-Bionics; Chinese Academy of Sciences; Suzhou 215123 China
| | - Dehua Huang
- CAS Key Laboratory of Nano-Bio Interface; Division of Nanobiomedicine and i -Lab; CAS Center for Excellence in Brain Science; Suzhou Institute of Nano-Tech and Nano-Bionics; Chinese Academy of Sciences; Suzhou 215123 China
- School of Nano Technology and Nano Bionics; University of Science and Technology of China; Hefei 230026 China
| | - Qianwu Wang
- College of Materials Sciences and Opto-Electronic Technology; University of Chinese Academy of Sciences; Beijing 100049 China
| | - Qiangbin Wang
- CAS Key Laboratory of Nano-Bio Interface; Division of Nanobiomedicine and i -Lab; CAS Center for Excellence in Brain Science; Suzhou Institute of Nano-Tech and Nano-Bionics; Chinese Academy of Sciences; Suzhou 215123 China
- School of Nano Technology and Nano Bionics; University of Science and Technology of China; Hefei 230026 China
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21
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Selvaraj V, Thomas N, Anthuvan AJ, Nagamony P, Chinnuswamy V. Amine-functionalized diatom frustules: a platform for specific and sensitive detection of nitroaromatic explosive derivative. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:20540-20549. [PMID: 29243153 DOI: 10.1007/s11356-017-0916-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 12/03/2017] [Indexed: 06/07/2023]
Abstract
In the present study, an attempt was made to develop a proof of concept for the detection of nitroaromatic explosive derivatives through the photoluminescence (PL) quenching process using functionalized diatom frustules as a sensing platform. The diatom frustules are composed of nanostructured, highly porous biogenic silica material and emit strong, visible blue PL upon UV excitation. PL-active biosilica was isolated from the marine diatom Nitzschia sp. and was amine-functionalized to develop a sensing platform. Functionalized diatom frustules were further characterized using field emission scanning electron microscope and a series of spectroscopic methods. When nitroaromatic compounds were bound to the functionalized diatom frustules biosilica, the PL intensity from the functionalized biosilica was partially quenched due to the electrophilic nature of the nitro (-NO) groups. The quenching process confirmed the Meisenheimer complex formation and was investigated by using Fourier transform infrared spectroscopy and time-resolved photoluminescence studies. The developed platform was further evaluated for its sensitivity and specificity, and the limit of detection (LOD) of the assay was determined as 1 μM for a series of nitroaromatic explosive compounds. In conclusion, the developed sensing platform will have great utility in the development of on-site detection platforms for sensitive detection of warfare explosive nitroaromatic compounds from the environment.
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Affiliation(s)
- Viji Selvaraj
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, Tamilnadu, 641046, India
| | - Neethi Thomas
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, Tamilnadu, 641046, India
| | - Allen Joseph Anthuvan
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, Tamilnadu, 641046, India
| | - Ponpandian Nagamony
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, Tamilnadu, 641046, India
| | - Viswanathan Chinnuswamy
- Department of Nanoscience and Technology, Bharathiar University, Coimbatore, Tamilnadu, 641046, India.
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Parani S, Pandian K, Oluwafemi OS. Gelatin stabilization of quantum dots for improved stability and biocompatibility. Int J Biol Macromol 2017; 107:635-641. [PMID: 28919525 DOI: 10.1016/j.ijbiomac.2017.09.039] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 09/11/2017] [Accepted: 09/13/2017] [Indexed: 01/16/2023]
Abstract
We herein report an aqueous synthesis of gelatin stabilized CdTe/CdS/ZnS (CSSG) core/double shell quantum dots (QDs) with improved biocompatibility. The as-synthesized QDs were characterized by ultraviolet-visible (UV-vis) and photoluminescence (PL) spectroscopic techniques, x-ray diffraction technique (XRD), x-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). The CSSG QDs revealed high photoluminescence quantum yield (PLQY) with excellent stability over a period of one year and retained 90% of its initial PLQY without any aggregation or precipitation under ambient condition. The cell viability study conducted on HeLa, cervical cancer cell lines indicated that the gelatin stabilization effectively decreased the QDs cytotoxicity by about 50%. The CSSG QDs were conjugated with transferrin (Tf) for the efficient delivery to the cancer cells followed by fluorescence imaging. The results showed that the CSSG QDs illuminates the entire cell which renders the QDs as cell labeling markers. The gelatin stabilized core/double shell QDs are potential candidates for long time fluorescent bio-imaging.
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Affiliation(s)
- Sundararajan Parani
- Department of Applied Chemistry, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa; Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa
| | - Kannaiyan Pandian
- Department of Inorganic Chemistry, University of Madras, Maraimalai (Guindy) Campus, Chennai, 600025, India
| | - Oluwatobi Samuel Oluwafemi
- Department of Applied Chemistry, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa; Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa.
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Henriksen-Lacey M, Carregal-Romero S, Liz-Marzán LM. Current Challenges toward In Vitro Cellular Validation of Inorganic Nanoparticles. Bioconjug Chem 2017; 28:212-221. [PMID: 27709892 PMCID: PMC5247775 DOI: 10.1021/acs.bioconjchem.6b00514] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 10/06/2016] [Indexed: 01/09/2023]
Abstract
An impressive development has been achieved toward the production of well-defined "smart" inorganic nanoparticles, in which the physicochemical properties can be controlled and predicted to a high degree of accuracy. Nanoparticle design is indeed highly advanced, multimodal and multitargeting being the norm, yet we do not fully understand the obstacles that nanoparticles face when used in vivo. Increased cooperation between chemists and biochemists, immunologists and physicists, has allowed us to think outside the box, and we are slowly starting to understand the interactions that nanoparticles undergo under more realistic situations. Importantly, such an understanding involves awareness about the limitations when assessing the influence of such inorganic nanoparticles on biological entities and vice versa, as well as the development of new validation strategies.
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Affiliation(s)
- Malou Henriksen-Lacey
- CIC biomaGUNE, Paseo
de Miramón 182, 20014 Donostia − San Sebastián, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina
(CIBER-BBN), 2014 Donostia − San Sebastián, Spain
| | | | - Luis M. Liz-Marzán
- CIC biomaGUNE, Paseo
de Miramón 182, 20014 Donostia − San Sebastián, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina
(CIBER-BBN), 2014 Donostia − San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
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Tian X, Xiao BB, Wu A, Yu L, Zhou J, Wang Y, Wang N, Guan H, Shang ZF. Hydroxylated-graphene quantum dots induce cells senescence in both p53-dependent and -independent manner. Toxicol Res (Camb) 2016; 5:1639-1648. [PMID: 30090463 PMCID: PMC6061981 DOI: 10.1039/c6tx00209a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 09/06/2016] [Indexed: 12/19/2022] Open
Abstract
The numerous particular chemical/physical properties make graphene quantum dots (GQDs) attractive for various biomedical applications such as drug delivery, bioimaging and tumor photodynamic therapy (PDT). In the present study, the critical roles of hydroxyl-modified GQDs (OH-GQDs) on lung carcinoma A549 (wild type p53) and H1299 (p53-null) cells were investigated. Our data showed that a medium concentration (50 μg mL-1) of OH-GQDs significantly decreased the viability of A549 and H1299 cells. OH-GQDs treatment enhanced intracellular reactive oxygen species (ROS) generation. Furthermore, we found that treatment with ROS scavenger N-acetylcysteine (NAC) at least partially abolished the cytotoxic effect of OH-GQDs on A549 and H1299 cells. Hydroxylated GQDs lead to G0-G1 arrest and cells senescence. Signal pathway analysis revealed that OH-GQDs activated the expression of p21 in both a p53-dependent and -independent manner. Consistent with this, OH-GQDs could also inhibit the phosphorylation of Rb in both A549 and H1299 cells. These findings provide valuable information for the consideration of biomedical application of GQDs in the future.
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Affiliation(s)
- Xin Tian
- School of Radiation Medicine and Protection , Medical College of Soochow University , Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Suzhou , Jiangsu 215123 , P.R. China .
| | - Bei-Bei Xiao
- School of Radiation Medicine and Protection , Medical College of Soochow University , Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Suzhou , Jiangsu 215123 , P.R. China .
| | - Anqing Wu
- School of Radiation Medicine and Protection , Medical College of Soochow University , Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Suzhou , Jiangsu 215123 , P.R. China .
| | - Lan Yu
- Division of Molecular Radiation Biology , Department of Radiation Oncology , University of Texas Southwestern Medical Center at Dallas , Dallas , Texas 75390 , USA
| | - Jundong Zhou
- Suzhou Cancer Center Core Laboratory , Nanjing Medical University Affiliated Suzhou Hospital , Suzhou , Jiangsu 215001 , P.R. China
| | - Yu Wang
- Department of Radiation Toxicology and Oncology , Beijing Key Laboratory for Radiobiology (BKLRB) , Beijing Institute of Radiation Medicine , Beijing 100850 , P. R. China .
| | - Nan Wang
- School of Radiation Medicine and Protection , Medical College of Soochow University , Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Suzhou , Jiangsu 215123 , P.R. China .
| | - Hua Guan
- Department of Radiation Toxicology and Oncology , Beijing Key Laboratory for Radiobiology (BKLRB) , Beijing Institute of Radiation Medicine , Beijing 100850 , P. R. China .
| | - Zeng-Fu Shang
- School of Radiation Medicine and Protection , Medical College of Soochow University , Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions , Suzhou , Jiangsu 215123 , P.R. China .
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25
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Muoth C, Wichser A, Monopoli M, Correia M, Ehrlich N, Loeschner K, Gallud A, Kucki M, Diener L, Manser P, Jochum W, Wick P, Buerki-Thurnherr T. A 3D co-culture microtissue model of the human placenta for nanotoxicity assessment. NANOSCALE 2016; 8:17322-17332. [PMID: 27714104 DOI: 10.1039/c6nr06749b] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
There is increasing evidence that certain nanoparticles (NPs) can overcome the placental barrier, raising concerns on potential adverse effects on the growing fetus. But even in the absence of placental transfer, NPs may pose a risk to proper fetal development if they interfere with the viability and functionality of the placental tissue. The effects of NPs on the human placenta are not well studied or understood, and predictive in vitro placenta models to achieve mechanistic insights on NP-placenta interactions are essentially lacking. Using the scaffold-free hanging drop technology, we developed a well-organized and highly reproducible 3D co-culture microtissue (MT) model consisting of a core of placental fibroblasts surrounded by a trophoblast cell layer, which resembles the structure of the in vivo placental tissue. We could show that secretion levels of human chorionic gonadotropin (hCG) were significantly higher in 3D than in 2D cell cultures, which indicates an enhanced differentiation of trophoblasts grown on 3D MTs. NP toxicity assessment revealed that cadmium telluride (CdTe) and copper oxide (CuO) NPs but not titanium dioxide (TiO2) NPs decreased MT viability and reduced the release of hCG. NP acute toxicity was significantly reduced in 3D co-culture MTs compared to 2D monocultures. Taken together, 3D placental MTs provide a new and promising model for the fast generation of tissue-relevant acute NP toxicity data, which are indispensable for the safe development of NPs for industrial, commercial and medical applications.
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Affiliation(s)
- Carina Muoth
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.
| | - Adrian Wichser
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.
| | - Marco Monopoli
- Centre for BioNano Interactions, School of Chemistry and Chemical Biology, University College Dublin, Dublin 4, Ireland
| | - Manuel Correia
- Research Group for Nano-Bio Science, Division for Food Technology, National Food Institute, Technical University of Denmark, Mørkhøj Bygade 19, DK-2860 Søborg, Denmark
| | - Nicky Ehrlich
- Research Group for Nano-Bio Science, Division for Food Technology, National Food Institute, Technical University of Denmark, Mørkhøj Bygade 19, DK-2860 Søborg, Denmark
| | - Katrin Loeschner
- Research Group for Nano-Bio Science, Division for Food Technology, National Food Institute, Technical University of Denmark, Mørkhøj Bygade 19, DK-2860 Søborg, Denmark
| | - Audrey Gallud
- Division of Molecular Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Nobels väg 13, 171 77 Stockholm, Sweden
| | - Melanie Kucki
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.
| | - Liliane Diener
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.
| | - Pius Manser
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.
| | - Wolfram Jochum
- Institute of Pathology, Cantonal Hospital St. Gallen, Rorschacherstrasse 95, 9007 St. Gallen, Switzerland
| | - Peter Wick
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.
| | - Tina Buerki-Thurnherr
- Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.
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26
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Ulusoy M, Jonczyk R, Walter JG, Springer S, Lavrentieva A, Stahl F, Green M, Scheper T. Aqueous Synthesis of PEGylated Quantum Dots with Increased Colloidal Stability and Reduced Cytotoxicity. Bioconjug Chem 2015; 27:414-26. [DOI: 10.1021/acs.bioconjchem.5b00491] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | | | | | | | | | | | - Mark Green
- Department
of Physics, King’s College London, The Strand, WC2R 2LS London, U.K
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