1
|
Okeke EB, Louttit C, Snyder CM, Moon JJ. Neutrophils and neutrophil extracellular traps in cancer: promising targets for engineered nanomaterials. Drug Deliv Transl Res 2023; 13:1882-1895. [PMID: 36182992 PMCID: PMC10066838 DOI: 10.1007/s13346-022-01243-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2022] [Indexed: 01/07/2023]
Abstract
Neutrophils are the most abundant white blood cells in circulation and constitute up to 60% of circulating leukocytes. Neutrophils play a significant role in host defense against pathogens through various mechanisms, including phagocytosis, production of antimicrobial proteins, and formation of neutrophil extracellular traps (NETs). Recently, the role of neutrophils and NETs in cancer has generated significant interest, as accumulating evidence suggests that neutrophils and NETs contribute to cancer progression and are associated with adverse patient outcomes. In this review, we will first highlight the roles of neutrophils and NETs in cancer progression and metastasis and discuss new drug delivery approaches to target and modulate neutrophils and NETs for cancer therapeutics.
Collapse
Affiliation(s)
- Emeka B Okeke
- Department of Biology, State University of New York at Fredonia, Fredonia, NY, 14063, USA.
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI, 48109, USA.
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109, USA.
| | - Cameron Louttit
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109, USA
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Caitlin M Snyder
- Department of Biology, State University of New York at Fredonia, Fredonia, NY, 14063, USA
| | - James J Moon
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI, 48109, USA.
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI, 48109, USA.
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA.
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA.
| |
Collapse
|
2
|
Mao CM, Sampath J, Sprenger KG, Drobny G, Pfaendtner J. Molecular Driving Forces in Peptide Adsorption to Metal Oxide Surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:5911-5920. [PMID: 30955325 DOI: 10.1021/acs.langmuir.8b01392] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Molecular recognition between peptides and metal oxide surfaces is a fundamental process in biomineralization, self-assembly, and biocompatibility. Yet, the underlying driving forces and dominant mechanisms remain unclear, bringing obstacles to understand and control this process. To elucidate the mechanism of peptide/surface recognition, specifically the role of serine phosphorylation, we employed molecular dynamics simulation and metadynamics-enhanced sampling to study five artificial peptides, DDD, DSS, DpSpS, DpSpSGKK, and DpSKGpSK, interacting with two surfaces: rutile TiO2 and quartz SiO2. On both surfaces, we observe that phosphorylation increases the binding energy. However, the interfacial peptide conformation reveals a distinct binding mechanism on each surface. We also study the impact of peptide sequence to binding free energy and interfacial conformation on both surfaces, specifically the impact on the behavior of phosphorylated serine. Finally, the results are discussed in context of prior studies investigating the role of serine phosphorylation in peptide binding to silica.
Collapse
|
3
|
Perfilieva OA, Pyshnyi DV, Lomzov AA. Molecular Dynamics Simulation of Polarizable Gold Nanoparticles Interacting with Sodium Citrate. J Chem Theory Comput 2018; 15:1278-1292. [DOI: 10.1021/acs.jctc.8b00362] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Olga A. Perfilieva
- Institute of Chemical
Biology and Fundamental Medicine, SB RAS, 8 Lavrentiev Avenue, Novosibirsk 630090, Russia
| | - Dmitrii V. Pyshnyi
- Institute of Chemical
Biology and Fundamental Medicine, SB RAS, 8 Lavrentiev Avenue, Novosibirsk 630090, Russia
- Novosibirsk State
University, 2 Pirogova Street, Novosibirsk 630090, Russia
| | - Alexander A. Lomzov
- Institute of Chemical
Biology and Fundamental Medicine, SB RAS, 8 Lavrentiev Avenue, Novosibirsk 630090, Russia
- Novosibirsk State
University, 2 Pirogova Street, Novosibirsk 630090, Russia
| |
Collapse
|
4
|
Hughes ZE, Kochandra R, Walsh TR. Facet-Specific Adsorption of Tripeptides at Aqueous Au Interfaces: Open Questions in Reconciling Experiment and Simulation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:3742-3754. [PMID: 28358489 DOI: 10.1021/acs.langmuir.6b04558] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The adsorption of three homo-tripeptides, HHH, YYY, and SSS, at the aqueous Au interface is investigated, using molecular dynamics simulations. We find that consideration of surface facet effects, relevant to experimental conditions, opens up new questions regarding interpretations of current experimental findings. Our well-tempered metadynamics simulations predict the rank ordering of the tripeptide binding affinities at aqueous Au(111) to be YYY > HHH > SSS. This ranking differs with that obtained from existing experimental data which used surface-immobilized Au nanoparticles as the target substrate. The influence of Au facet on these experimental findings is then considered, via our binding strength predictions of the relevant amino acids at aqueous Au(111) and Au(100)(1 × 1). The Au(111) interface supports an amino acid ranking of Tyr > HisA ≃ HisH > Ser, matching that of the tripeptides on Au(111), while the ranking on Au(100) is HisA > Ser ≃ Tyr ≃ HisH, with only HisA showing non-negligible binding. The substantial reduction in Tyr amino acid affinity for Au(100) vs Au(111) offers one possible explanation for the experimentally observed weaker adsorption of YYY on the nanoparticle-immobilized substrate compared with HHH. In a separate set of simulations, we predict the structures of the adsorbed tripeptides at the two aqueous Au facets, revealing facet-dependent differences in the adsorbed conformations. Our findings suggest that Au facet effects, where relevant, may influence the adsorption structures and energetics of biomolecules, highlighting the possible influence of the structural model used to interpret experimental binding data.
Collapse
Affiliation(s)
- Zak E Hughes
- Institute for Frontier Materials, Deakin University , Geelong, Victoria 3216, Australia
| | - Raji Kochandra
- Institute for Frontier Materials, Deakin University , Geelong, Victoria 3216, Australia
| | - Tiffany R Walsh
- Institute for Frontier Materials, Deakin University , Geelong, Victoria 3216, Australia
| |
Collapse
|
5
|
Abd Ellah N, Taylor L, Troja W, Owens K, Ayres N, Pauletti G, Jones H. Development of Non-Viral, Trophoblast-Specific Gene Delivery for Placental Therapy. PLoS One 2015; 10:e0140879. [PMID: 26473479 PMCID: PMC4608830 DOI: 10.1371/journal.pone.0140879] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 10/01/2015] [Indexed: 12/14/2022] Open
Abstract
Low birth weight is associated with both short term problems and the fetal programming of adult onset diseases, including an increased risk of obesity, diabetes and cardiovascular disease. Placental insufficiency leading to intrauterine growth restriction (IUGR) contributes to the prevalence of diseases with developmental origins. Currently there are no therapies for IUGR or placental insufficiency. To address this and move towards development of an in utero therapy, we employ a nanostructure delivery system complexed with the IGF-1 gene to treat the placenta. IGF-1 is a growth factor critical to achieving appropriate placental and fetal growth. Delivery of genes to a model of human trophoblast and mouse placenta was achieved using a diblock copolymer (pHPMA-b-pDMAEMA) complexed to hIGF-1 plasmid DNA under the control of trophoblast-specific promoters (Cyp19a or PLAC1). Transfection efficiency of pEGFP-C1-containing nanocarriers in BeWo cells and non-trophoblast cells was visually assessed via fluorescence microscopy. In vivo transfection and functionality was assessed by direct placental-injection into a mouse model of IUGR. Complexes formed using pHPMA-b-pDMAEMA and CYP19a-923 or PLAC1-modified plasmids induce trophoblast-selective transgene expression in vitro, and placental injection of PLAC1-hIGF-1 produces measurable RNA expression and alleviates IUGR in our mouse model, consequently representing innovative building blocks towards human placental gene therapies.
Collapse
Affiliation(s)
- Noura Abd Ellah
- James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH, 45267, United States of America
- Faculty of Pharmacy, Assiut University, 71515, Assiut, Arab Republic of Egypt
| | - Leeanne Taylor
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, United States of America
| | - Weston Troja
- Divisions of General and Thoracic Surgery and Reproductive Sciences, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, United States of America
| | - Kathryn Owens
- Divisions of General and Thoracic Surgery and Reproductive Sciences, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, United States of America
| | - Neil Ayres
- Department of Chemistry, University of Cincinnati, Cincinnati, OH, 45221, United States of America
| | - Giovanni Pauletti
- James L. Winkle College of Pharmacy, University of Cincinnati, Cincinnati, OH, 45267, United States of America
| | - Helen Jones
- Divisions of General and Thoracic Surgery and Reproductive Sciences, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, 45229, United States of America
- * E-mail:
| |
Collapse
|
6
|
Wright LB, Palafox-Hernandez JP, Rodger PM, Corni S, Walsh TR. Facet selectivity in gold binding peptides: exploiting interfacial water structure. Chem Sci 2015; 6:5204-5214. [PMID: 29449926 PMCID: PMC5669244 DOI: 10.1039/c5sc00399g] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 06/20/2015] [Indexed: 11/21/2022] Open
Abstract
Peptide sequences that can discriminate between gold facets under aqueous conditions offer a promising route to control the growth and organisation of biomimetically-synthesised gold nanoparticles. Knowledge of the interplay between sequence, conformations and interfacial properties is essential for predictable manipulation of these biointerfaces, but the structural connections between a given peptide sequence and its binding affinity remain unclear, impeding practical advances in the field. These structural insights, at atomic-scale resolution, are not easily accessed with experimental approaches, but can be delivered via molecular simulation. A current unmet challenge lies in forging links between predicted adsorption free energies derived from enhanced sampling simulations with the conformational ensemble of the peptide and the water structure at the surface. To meet this challenge, here we use an in situ combination of Replica Exchange with Solute Tempering with Metadynamics simulations to predict the adsorption free energy of a gold-binding peptide sequence, AuBP1, at the aqueous Au(111), Au(100)(1 × 1) and Au(100)(5 × 1) interfaces. We find adsorption to the Au(111) surface is stronger than to Au(100), irrespective of the reconstruction status of the latter. Our predicted free energies agree with experiment, and correlate with trends in interfacial water structuring. For gold, surface hydration is predicted as a chief determining factor in peptide-surface recognition. Our findings can be used to suggest how shaped seed-nanocrystals of Au, in partnership with AuBP1, could be used to control AuNP nanoparticle morphology.
Collapse
Affiliation(s)
- Louise B Wright
- Dept. of Chemistry , University of Warwick , Coventry , CV4 7AL , UK
| | | | - P Mark Rodger
- Dept. of Chemistry , University of Warwick , Coventry , CV4 7AL , UK
- Centre for Scientific Computing , University of Warwick , Coventry , CV4 7AL , UK .
| | - Stefano Corni
- Centro S3 CNR Istituto Nanoscienze , Modena , Italy .
| | - Tiffany R Walsh
- Institute for Frontier Materials , Deakin University , Geelong , 3216 , VIC , Australia .
| |
Collapse
|
7
|
Wright LB, Rodger PM, Walsh TR. Structure and properties of citrate overlayers adsorbed at the aqueous Au(111) interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:15171-15180. [PMID: 25454252 DOI: 10.1021/la503690t] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
One of the most common means of gold nanoparticle (AuNP) biofunctionalization involves the manipulation of precursor citrate-capped AuNPs via ligand displacement. However, the molecular-level structural characteristics of the citrate overlayer adsorbed at the aqueous Au interface at neutral pH remain largely unknown. Access to atomistic-scale details of these interfaces will contribute much needed insight into how AuNPs can be manipulated and exploited in aqueous solution. Here, the structures of such citrate overlayers adsorbed at the aqueous Au(111) interface at pH 7 are predicted and characterized using atomistic molecular dynamics simulations, for a range of citrate surface densities. We find that the overlayers are disordered in the surface density range considered, and that many of their key characteristics are invariant with surface density. In particular, we predict the overlayers to have 3-D, rather than 2-D, morphologies, with the anions closest to the gold surface being oriented with their carboxylate groups pointing away from the surface. We predict both striped and island morphologies for our overlayers, depending on the citrate surface density, and in all cases we find bare patches of the gold surface are present. Our simulations suggest that both citrate-gold adsorption and citrate-counterion pairing contribute to the stability of these citrate overlayer morphologies. We also calculate the free energy of adsorption at the aqueous Au(111) interface of a single citrate molecule, and compare this with the corresponding value for a single arginine molecule. These findings enable us to predict the conditions under which ligand displacement of surface-adsorbed citrate by arginine may take place. Our findings represent the first steps toward elucidating a more elaborate, detailed atomistic-scale model relating to the biofunctionalization of citrate-capped AuNPs.
Collapse
Affiliation(s)
- Louise B Wright
- University of Warwick , Department of Chemistry and Centre for Scientific Computing, Coventry CV4 7AL, United Kingdom
| | | | | |
Collapse
|
8
|
Ivani S, Karimi I, Tabatabaei SRF, Syedmoradi L. Effects of prenatal exposure to single-wall carbon nanotubes on reproductive performance and neurodevelopment in mice. Toxicol Ind Health 2014; 32:1293-301. [DOI: 10.1177/0748233714555388] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Carbon nanotubes with extraordinary properties may become a novel drug and gene delivery tool in nanomedicine; however, insufficient information is available regarding their biosafety. Therefore, this work was performed to study the effect of prenatal exposure of single-walled carbon nanotubes (SWCNTs) on reproductive and neurobehavioral endpoints in mice. Thirty pregnant female mice were assigned to three groups ( n = 10 for each group). The two treated groups were injected intraperitoneally (i.p.) with 1 or 10 mg/kg body weight (b.w.) of SWCNTs suspended in 1 ml of phosphate buffer saline (PBS) on gestational days 0 and 3. The control group was injected i.p. with an equal volume of PBS. The neurobehavioral ontogeny of pups was evaluated using a modified Fox battery. A decrease in litter size on postnatal day 2 was observed in the group treated with 10 mg/kg b.w. of SWCNTs whereas no significant differences between groups were observed in any other parameters. The behavioral development of pups did not show significant differences during growth except for the surface righting reflex, which showed significant delay compared to control in the group treated with 1 mg/kg b.w. SWCNTs. Moreover, exposed offspring (10 mg/kg b.w. SWCNTs) displayed enhanced anxiety in the elevated plus maze; however, other ethological analysis (Morris water maze and open field test) did not show behavioral changes in the experimental groups. In conclusion, the present results demonstrated small changes in offspring sensory and motor development following exposure to SWCNTs and support the idea that SWCNT risk assessment merits further investigation.
Collapse
Affiliation(s)
- Saeed Ivani
- Division of Physiology, Department of Basic Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Isaac Karimi
- Laboratory of Molecular and Cellular Biology 1214, Department of Basic Veterinary Sciences, School of Veterinary Medicine, Razi University, Kermanshah, Iran
| | - Seyed Reza Fatemi Tabatabaei
- Division of Physiology, Department of Basic Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Leila Syedmoradi
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
9
|
Saeed LM, Mahmood M, Pyrek SJ, Fahmi T, Xu Y, Mustafa T, Nima ZA, Bratton SM, Casciano D, Dervishi E, Radominska-Pandya A, Biris AS. Single-walled carbon nanotube and graphene nanodelivery of gambogic acid increases its cytotoxicity in breast and pancreatic cancer cells. J Appl Toxicol 2014; 34:1188-99. [PMID: 25220893 DOI: 10.1002/jat.3018] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 03/03/2014] [Accepted: 03/20/2014] [Indexed: 12/20/2022]
Abstract
Graphene and single-walled carbon nanotubes were used to deliver the natural low-toxicity drug gambogic acid (GA) to breast and pancreatic cancer cells in vitro, and the effectiveness of this complex in suppressing cellular integrity was assessed. Cytotoxicity was assessed by measuring lactate dehydrogenase release, mitochondria dehydrogenase activity, mitochondrial membrane depolarization, DNA fragmentation, intracellular lipid content, and membrane permeability/caspase activity. The nanomaterials showed no toxicity at the concentrations used, and the antiproliferative effects of GA were significantly enhanced by nanodelivery. The results suggest that these complexes inhibit human breast and pancreatic cancer cells grown in vitro. This analysis represents a first step toward assessing their effectiveness in more complex, targeted, nanodelivery systems.
Collapse
Affiliation(s)
- Lamya M Saeed
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, AR, 72204, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Calcium-channel blocking and nanoparticles-based drug delivery for treatment of drug-resistant human cancers. Ther Deliv 2014; 5:763-80. [DOI: 10.4155/tde.14.30] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background: Cancer cell chemoresistance is one of the major limitations to successful cancer treatment and one of the factors that is responsible for the possible recurrence of the disease. Here, we aimed to combine a calcium-channel blocker, verapamil, with an alternative delivery of the anti-cancer drug, doxorubicin, using nanostructural materials. This approach could reduce the cellular resistance to chemotherapeutics agents. Results: The outcome of this complex approach on cellular viability was investigated by using various assays in both a time- and concentration-dependent manner: WST-1, flow cytometry cell viability assay, fluorescence microscopy, DNA fragmentation, and TUNEL labeling of apoptotic cells. Conclusion: All of these analytical assays confirmed the ability to reduce the chemoresistance of the cancer cells based on the proposed procedure.
Collapse
|
11
|
Wittig R, Rosenholm JM, von Haartman E, Hemming J, Genze F, Bergman L, Simmet T, Lindén M, Sahlgren C. Active targeting of mesoporous silica drug carriers enhances γ-secretase inhibitor efficacy in an in vivo model for breast cancer. Nanomedicine (Lond) 2014; 9:971-87. [DOI: 10.2217/nnm.13.62] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Aim: In this article, we use an alternative cancer model for the evaluation of nanotherapy, and assess the impact of surface functionalization and active targeting of mesoporous silica nanoparticles (MSNPs) on therapeutic efficacy in vivo. Materials & methods: We used the chorioallantoic membrane xenograft assay to investigate the biodistribution and therapeutic efficacy of folate versus polyethyleneimine-functionalized γ-secretase inhibitor-loaded MSNPs in breast and prostate tumor models. Results: γ-secretase inhibitor-loaded MSNPs inhibited tumor growth in breast and prostate cancer xenografts. Folate conjugation improved the therapeutic outcome in folic acid receptor-positive breast cancer, but not in prostate cancer lacking the receptor. Conclusion: The results demonstrate that therapeutic efficacy is linked to cellular uptake of MSNPs as opposed to tumor accumulation, and show that MSNP-based delivery of γ-secretase inhibitors is therapeutically effective in both breast and prostate cancer. In this article, we present a model system for a medium-to-high throughput, cost-effective, quantitative evaluation of nanoparticulate drug carriers. Original submitted 12 November 2012; Revised submitted 8 February 2013
Collapse
Affiliation(s)
- Rainer Wittig
- Institute for Laser Technologies in Medicine & Metrology at Ulm University, Helmholtzstrasse 12, D-89081 Ulm, Germany
| | - Jessica M Rosenholm
- Center for Functional Materials, Laboratory for Physical Chemistry, Department of Natural Sciences, Åbo Akademi University, FI-20500 Turku, Finland
| | - Eva von Haartman
- Center for Functional Materials, Laboratory for Physical Chemistry, Department of Natural Sciences, Åbo Akademi University, FI-20500 Turku, Finland
| | - Jarl Hemming
- Wood & Paper Chemistry, Department of Chemical Engineering, Åbo Akademi University, FI-20500 Turku, Finland
| | - Felicitas Genze
- Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Helmholtzstrasse 20, D-89081 Ulm, Germany
| | - Lotta Bergman
- Inorganic Chemistry II, Ulm University, Albert-Einstein-Allee 11, D-89081 Ulm, Germany
| | - Thomas Simmet
- Institute of Pharmacology of Natural Products & Clinical Pharmacology, Ulm University, Helmholtzstrasse 20, D-89081 Ulm, Germany
| | - Mika Lindén
- Inorganic Chemistry II, Ulm University, Albert-Einstein-Allee 11, D-89081 Ulm, Germany
| | - Cecilia Sahlgren
- Department of Biomedical Engineering, Technical University of Eindhoven, 2612 Eindhoven, The Netherlands
| |
Collapse
|
12
|
Nanotechnology-Based Drug Delivery Systems for Targeting, Imaging and Diagnosis of Neurodegenerative Diseases. Pharm Res 2013; 30:2499-511. [DOI: 10.1007/s11095-013-1156-7] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2012] [Accepted: 07/22/2013] [Indexed: 12/26/2022]
|
13
|
Tessmer I, Kaur P, Lin J, Wang H. Investigating bioconjugation by atomic force microscopy. J Nanobiotechnology 2013; 11:25. [PMID: 23855448 PMCID: PMC3723498 DOI: 10.1186/1477-3155-11-25] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2013] [Accepted: 07/05/2013] [Indexed: 12/15/2022] Open
Abstract
Nanotechnological applications increasingly exploit the selectivity and processivity of biological molecules. Integration of biomolecules such as proteins or DNA into nano-systems typically requires their conjugation to surfaces, for example of carbon-nanotubes or fluorescent quantum dots. The bioconjugated nanostructures exploit the unique strengths of both their biological and nanoparticle components and are used in diverse, future oriented research areas ranging from nanoelectronics to biosensing and nanomedicine. Atomic force microscopy imaging provides valuable, direct insight for the evaluation of different conjugation approaches at the level of the individual molecules. Recent technical advances have enabled high speed imaging by AFM supporting time resolutions sufficient to follow conformational changes of intricately assembled nanostructures in solution. In addition, integration of AFM with different spectroscopic and imaging approaches provides an enhanced level of information on the investigated sample. Furthermore, the AFM itself can serve as an active tool for the assembly of nanostructures based on bioconjugation. AFM is hence a major workhorse in nanotechnology; it is a powerful tool for the structural investigation of bioconjugation and bioconjugation-induced effects as well as the simultaneous active assembly and analysis of bioconjugation-based nanostructures.
Collapse
Affiliation(s)
- Ingrid Tessmer
- Rudolf Virchow Center for Experimental Biomedicine, University of Würzburg, Josef-Schneider-Str, 2, 97080, Würzburg, Germany.
| | | | | | | |
Collapse
|
14
|
Alinejad Y, Faucheux N, Soucy G. Preosteoblasts behavior in contact with single-walled carbon nanotubes synthesized by radio frequency induction thermal plasma using various catalysts. J Appl Toxicol 2013; 33:1143-55. [DOI: 10.1002/jat.2875] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 02/01/2013] [Accepted: 02/15/2013] [Indexed: 01/11/2023]
Affiliation(s)
| | - Nathalie Faucheux
- Cell-Biomaterial Biohybrid Systems Laboratory, Department of Chemical Engineering and Biotechnological Engineering; Université de Sherbrooke; 2500 boul. de l'Université; Sherbrooke; Québec; Canada; J1K 2R1
| | - Gervais Soucy
- Thermal Plasma and Nanomaterial Synthesis Laboratory, Department of Chemical Engineering and Biotechnological Engineering; Université de Sherbrooke; Sherbrooke, 2500 boul. de l'Université; Sherbrooke; Québec; Canada; J1K 2R1
| |
Collapse
|
15
|
Wright LB, Rodger PM, Corni S, Walsh TR. GolP-CHARMM: First-Principles Based Force Fields for the Interaction of Proteins with Au(111) and Au(100). J Chem Theory Comput 2013; 9:1616-30. [DOI: 10.1021/ct301018m] [Citation(s) in RCA: 177] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Louise B. Wright
- University of Warwick, Dept.
of Chemistry and Centre for Scientific Computing, Coventry, CV4 7AL,
United Kingdom
| | - P. Mark Rodger
- University of Warwick, Dept.
of Chemistry and Centre for Scientific Computing, Coventry, CV4 7AL,
United Kingdom
| | | | - Tiffany R. Walsh
- Deakin University,
Institute for
Frontier Materials, Geelong, Vic. 3216, Australia
| |
Collapse
|
16
|
Wright LB, Walsh TR. Efficient conformational sampling of peptides adsorbed onto inorganic surfaces: insights from a quartz binding peptide. Phys Chem Chem Phys 2013; 15:4715-26. [DOI: 10.1039/c3cp42921k] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
17
|
Mahmood M, Villagarcia H, Dervishi E, Mustafa T, Alimohammadi M, Casciano D, Khodakovskaya M, Biris AS. Role of carbonaceous nanomaterials in stimulating osteogenesis in mammalian bone cells. J Mater Chem B 2013; 1:3220-3230. [DOI: 10.1039/c3tb20248h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
18
|
Hörner S, Fabritz S, Herce HD, Avrutina O, Dietz C, Stark RW, Cardoso MC, Kolmar H. Cube-octameric silsesquioxane-mediated cargo peptide delivery into living cancer cells. Org Biomol Chem 2013; 11:2258-65. [DOI: 10.1039/c2ob26808f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
19
|
Wright LB, Rodger PM, Walsh TR. Aqueous citrate: a first-principles and force-field molecular dynamics study. RSC Adv 2013. [DOI: 10.1039/c3ra42437e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
|
20
|
Xu P, Xu J, Liu S, Yang Z. Nano copper induced apoptosis in podocytes via increasing oxidative stress. JOURNAL OF HAZARDOUS MATERIALS 2012; 241-242:279-86. [PMID: 23063557 DOI: 10.1016/j.jhazmat.2012.09.041] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2012] [Revised: 08/31/2012] [Accepted: 09/17/2012] [Indexed: 05/07/2023]
Abstract
Nanosized copper particles (nano-Cu), one of the representative metal nanometer materials, were used in several domains, and the potential toxicity was raised more and more attention. In order to investigate the cytotoxicity induced by nano-Cu in podocytes, which was the key player of the glomerular filtration barrier, podocytes were treated with different concentrations of nano-Cu. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was used to measure the cell viability. Hoechst 33342 staining assay and Annexin V/PI double labeling assay were used to identify whether the cytotoxicity induced by nano-Cu was due to apoptosis or necrosis. The oxidative stress induced by nano-Cu and its mechanism were studied in relation to the generation of reactive oxygen species (ROS), superoxide dismutase (SOD) and malondialdehyde (MDA). As a result, while podocytes were treated with nano-Cu, the cell viability was significantly decreased and the apoptosis was significantly increased in podocytes. Results showed that nano-Cu affected the oxidant-antioxidant balance and had cytotoxicity in podocytes, resulting in the enhanced generation of ROS and MDA. Meanwhile, pretreatment with N-(2-mercaptopropionyl)-glycine (N-MPG), a type of ROS scavenger, could inhibit podocyte apoptosis induced by nano-Cu. Results suggested that the increased oxidative stress was a key mechanism in the podocyte apoptosis induced by nano-Cu, which could provide evidence for further research on the toxicity of nano-Cu.
Collapse
Affiliation(s)
- Pengjuan Xu
- College of Medicine, Nankai University, Tianjin 300071, China
| | | | | | | |
Collapse
|
21
|
Haque MM, Im HY, Seo JE, Hasan M, Woo K, Kwon OS. Acute toxicity and tissue distribution of CdSe/CdS-MPA quantum dots after repeated intraperitoneal injection to mice. J Appl Toxicol 2012; 33:940-50. [PMID: 22733552 DOI: 10.1002/jat.2775] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2011] [Revised: 04/12/2012] [Accepted: 04/12/2012] [Indexed: 11/11/2022]
Abstract
Quantum dots (QDs) are novel tools with multiple biological and medical applications because of their superior photoemission and photostability characteristics. However, leaching of toxic metals from QDs is of great concern. Therefore, for the successful application of QDs in bioscience, it is essential to understand their biological fate and toxicity. We investigated toxicological effects and tissue distribution of mercaptopropionic acid-conjugated cadmium selenide/cadmium sulfide (CdSe/CdS-MPA) QDs after repeated intraperitoneal injection into BALB/c mice. The mice were injected every 3 days with various doses of QDs (0, 5, 10 and 25 mg kg(-1) ). The subsequent effects of QDs on plasma levels of various biomarkers were evaluated at different time points (at 0, 1, 4, 7, 10, 13 and 15 days). Various tissue samples (spleen, liver, lung, kidneys, brain, heart and thymus) were collected for toxicity analysis, distribution testing, histopathological examination and inflammation assessment. No abnormal clinical signs or behaviors were recorded but the body weight of mice treated with 25 mg kg(-1) QDs was significantly decreased from day 7 compared with control mice. QDs were observed in the liver, spleen, lung and kidneys, but not in brain or heart. Significantly higher levels of lactate dehydrogenase and nicotinamide adenine dinucleotide phosphate oxidase were found in the plasma, liver and spleen. Histopathological examination did not show any tissue toxicity but the levels of interleukin-6, a pro-inflammatory marker, were increased in the plasma, liver and spleen. All of these findings provide insight into the observed toxicological effect levels and tissue-specific distribution of CdSe/CdS-MPA QDs.
Collapse
Affiliation(s)
- Md Mamunul Haque
- Toxicology Laboratory, Korea Institute of Science and Technology, Seoul, 136-791, Korea
| | | | | | | | | | | |
Collapse
|
22
|
Nanocarriers as Nanomedicines. NANOBIOTECHNOLOGY - INORGANIC NANOPARTICLES VS ORGANIC NANOPARTICLES 2012. [DOI: 10.1016/b978-0-12-415769-9.00014-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
23
|
Ivani S, Karimi I, Tabatabaei SRF. Biosafety of multiwalled carbon nanotube in mice: a behavioral toxicological approach. J Toxicol Sci 2012. [DOI: 10.2131/jts.37.1191] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Saeed Ivani
- Division of Physiology, Department of Basic Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Iran
| | - Isaac Karimi
- Division of Biochemistry, Physiology and Pharmacology, Department of Basic Veterinary Sciences, School of Veterinary Medicine, Razi University, Kermanshah, Iran
| | - Seyed Reza Fatemi Tabatabaei
- Division of Physiology, Department of Basic Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Iran
| |
Collapse
|
24
|
Xu Y, Heberlein WE, Mahmood M, Orza AI, Karmakar A, Mustafa T, Biris AR, Casciano D, Biris AS. Progress in materials for thermal ablation of cancer cells. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm32792a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|