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Ghio AJ, Hilborn ED. Cyanobacterial blooms, iron, and environmental pollutants. Biometals 2024; 37:577-586. [PMID: 37910342 PMCID: PMC11209704 DOI: 10.1007/s10534-023-00553-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/14/2023] [Indexed: 11/03/2023]
Abstract
Iron determines the abundance and diversity of life and controls primary production in numerous aqueous environments. Over the past decades, the availability of this metal in natural waters has decreased. Iron deficiency can apply a selective pressure on microbial aquatic communities. Each aquatic organism has their individual requirements for iron and pathways for metal acquisition, despite all having access to the common pool of iron. Cyanobacteria, a photosynthesizing bacterium that can accumulate and form so-called 'algal blooms', have evolved strategies to thrive in such iron-deficient aqueous environments where they can outcompete other organisms in iron acquisition in diverse microbial communities. Metabolic pathways for iron acquisition employed by cyanobacteria allow it to compete successfully for this essential nutrient. By competing more effectively for requisite iron, cyanobacteria can displace other species and grow to dominate the microbial population in a bloom. Aquatic resources are damaged by a diverse number of environmental pollutants that can further decrease metal availability and result in a functional deficiency of available iron. Pollutants can also increase iron demand. A pollutant-exposed microbe is compelled to acquire further metal critical to its survival. Even in pollutant-impacted waters, cyanobacteria enjoy a competitive advantage and cyanobacterial dominance can be the result. We propose that cyanobacteria have a distinct competitive advantage over many other aquatic microbes in polluted, iron-poor environments.
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Affiliation(s)
- Andrew J Ghio
- US Environmental Protection Agency, Chapel Hill, NC, USA.
- Human Studies Facility, 104 Mason Farm Road, Chapel Hill, NC, 27514, USA.
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2
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Cerracchio C, Amoroso MG, Piccolo M, Ferraro MG, Nocera FP, De Martino L, Serra F, Irace C, Tenore GC, Novellino E, Santamaria R, Fiorito F. Antiviral activity of Taurisolo® during bovine alphaherpesvirus 1 infection. Virus Res 2023; 336:199217. [PMID: 37666327 PMCID: PMC10504091 DOI: 10.1016/j.virusres.2023.199217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/28/2023] [Accepted: 09/01/2023] [Indexed: 09/06/2023]
Abstract
Bovine alphaherpesvirus 1 (BoAHV-1), the pathogen causing Infectious Bovine Rhinotracheitis (IBR) and predisposing to polymicrobial infections in cattle, provokes farm economic losses and trading restrictions in the world. However, nontoxic antiviral agents for BoAHV-1 infection are still unavailable, but plant extracts, such as flavonoid derivatives possess activity against BoAHV-1. Taurisolo®, a nutraceutical produced by Aglianico grape pomace, has recently shown promising antiviral activity. Herein, the potential activity of Taurisolo® during BoAHV-1 infection in Madin Darby bovine kidney (MDBK) cells was tested. Taurisolo® enhanced cell viability and reduced morphological death signs in BoAHV-1-infected cells. Moreover, Taurisolo® influenced the expression of bICP0, the key regulatory protein of BoAHV-1, and it strongly diminished virus yield. These effects were associated with an up-regulation of aryl hydrocarbon receptor (AhR), a transcription factor involved in microbial metabolism and immune response. In conclusion, our findings indicate that Taurisolo® may represent a potential antiviral agent against BoAHV-1 infection. Noteworthy, AhR could be involved in the observed effects and become a new target in antiviral therapy.
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Affiliation(s)
- Claudia Cerracchio
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy
| | | | - Marialuisa Piccolo
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | | | - Francesca Paola Nocera
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy
| | - Luisa De Martino
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy
| | - Francesco Serra
- Istituto Zooprofilattico del Mezzogiorno, 80055 Portici, Naples, Italy
| | - Carlo Irace
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy.
| | - Gian Carlo Tenore
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Ettore Novellino
- Department of Medicine and Surgery, Catholic University of the Sacred Heart, 00168 Rome, Italy
| | - Rita Santamaria
- Department of Pharmacy, University of Naples Federico II, 80131 Naples, Italy
| | - Filomena Fiorito
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy.
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3
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Fiorito F, Irace C, Nocera FP, Piccolo M, Ferraro MG, Ciampaglia R, Tenore GC, Santamaria R, De Martino L. MG-132 interferes with iron cellular homeostasis and alters virulence of bovine herpesvirus 1. Res Vet Sci 2021; 137:1-8. [PMID: 33906007 DOI: 10.1016/j.rvsc.2021.04.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/02/2021] [Accepted: 04/19/2021] [Indexed: 12/14/2022]
Abstract
Bovine herpesvirus 1 (BoHV-1) requires an iron-replete cell host to replicate efficiently. BoHV-1 infection provokes an increase in ferritin levels and a decrease of transferrin receptor 1 (TfR-1) expression, ultimately lowering iron pool extent. Thus, cells try to limit iron availability for virus spread. It has been demonstrated that MG-132, a proteasome inhibitor, reduces BoHV-1 release. Since ferritin, the major iron storage protein in mammalian cells, undergoes proteasome-mediated degradation, herein, the influence of MG-132 on iron metabolism during BoHV-1 infection was examined. Following infection in bovine cells (MDBK), MG-132 reduced cell death and viral yield. Western blot analysis showed a significant ferritin accumulation, likely due to the inhibition of its proteasome-mediated degradation pathway. In addition, the concomitant down-regulation of TfR-1 expression, observed during infection, was counteracted by proteasome inhibitor. This trend may be explained by enhanced acidic vesicular organelles, detected by acridine orange staining, determining a reduction of intracellular pH, that promotes new synthesis of TfR-1 degraded in a recycling pathway. In addition, MG-132 influences cellular iron distribution during BoHV-1 infection, as revealed by Perls' Prussian blue staining. However, cellular iron content, evaluated by Atomic Absorption Spectrophotometry, resulted essentially unaltered. These findings reveal that MG-132 may contribute to limit cellular iron availability for virus replication thereby enhancing cell survival.
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Affiliation(s)
- Filomena Fiorito
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Naples, Italy.
| | - Carlo Irace
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Francesca Paola Nocera
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Naples, Italy
| | | | | | | | - Gian Carlo Tenore
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Rita Santamaria
- Department of Pharmacy, University of Naples Federico II, Naples, Italy.
| | - Luisa De Martino
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Naples, Italy
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4
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Bovine herpesvirus-1 infection in mouse neuroblastoma (Neuro-2A) cells. Vet Microbiol 2020; 247:108762. [PMID: 32768214 DOI: 10.1016/j.vetmic.2020.108762] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/12/2020] [Accepted: 06/13/2020] [Indexed: 12/16/2022]
Abstract
Bovine herpesvirus 1 (BoHV-1) is an important cattle pathogen, that may cause rhinotracheitis, abortions and shipping fever. Virus establishes latency in sensory neurons, but periodically could reactivate. Recent studies identified mouse neuroblastoma (Neuro-2A) cells as a novel cell culture model to study factors that regulate BoHV-1 productive infection in neuronal cells. Herein, following BoHV-1 infection in Neuro-2A, a reduced cell viability occurred. Membrane damage and death morphological alterations, features of apoptosis and necrosis, were distinguished in infected cells. In addition, biochemical signs of apoptosis (caspase 3 activation and PARP cleavage) were observed. These results were accompanied by incomplete autophagy due to enhanced amounts of autophagic markers (LC3-II, ATG5 and Beclin 1), in the presence of increased levels of p62. Interestingly, protein expression of viral infected cell protein 0 (bICP0) was detected in Neuro-2A cells, although BoHV-1 inefficiently replicates in these cells, because just low levels of viral yield were found. Taken together, our results suggest that BoHV-1 may exert its potential neurotoxicity through a combined mechanism of necrosis and apoptosis. Moreover, incomplete autophagy occurred during BoHV-1 replication in Neuro-2A cells, which were favourable for viral persistence.
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Fiorito F, Iovane V, Marullo A, Costagliola A, Granato GE, De Martino L. 2,3,7,8-Tetrachlorodibenzo-p-dioxin influences bovine herpesvirus 1 replication through upregulation of SIRT3 and cytoskeletal reorganization. Vet Res Commun 2017; 41:299-306. [PMID: 29081026 PMCID: PMC7088714 DOI: 10.1007/s11259-017-9701-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 10/20/2017] [Indexed: 12/30/2022]
Abstract
Infection of kidney cells (MDBK) with Bovine Herpesvirus 1 (BoHV-1) is affected by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), which accelerates BoHV-1-induced apoptosis and increases virus replication. Herein, to elucidate the mechanism through TCDD modifies BoHV-1 infection, we analyzed the modulation of a members of Sirtuin proteins family in MDBK cells. We found that mitochondrial SIRT3 was upregulated during infection. This change was accompanied by cytoskeletal rearrangements and cell extensions. All these trends were drastically modified by TCDD. We hypothesize that, taken together, these results might further clarify the processes responsible for the action of TCDD on the BoHV-1 replication, resulting in enhanced virus production.
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Affiliation(s)
- Filomena Fiorito
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, 80055, Naples, Italy.
| | - Valentina Iovane
- Department of Pharmacy, University of Salerno, Fisciano, Salerno, 84084, Italy
| | - Annarosaria Marullo
- Department of Veterinary Medicine and Animal Production, University of Naples "Federico II", 80137, Naples, Italy.,Department of Veterinary Medical Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Anna Costagliola
- Department of Veterinary Medicine and Animal Production, University of Naples "Federico II", 80137, Naples, Italy.
| | - Giovanna Elvira Granato
- Department of Veterinary Medicine and Animal Production, University of Naples "Federico II", 80137, Naples, Italy
| | - Luisa De Martino
- Department of Veterinary Medicine and Animal Production, University of Naples "Federico II", 80137, Naples, Italy
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MG-132 reduces virus release in Bovine herpesvirus-1 infection. Sci Rep 2017; 7:13306. [PMID: 29042667 PMCID: PMC5645422 DOI: 10.1038/s41598-017-13717-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 09/26/2017] [Indexed: 12/25/2022] Open
Abstract
Bovine herpesvirus 1 (BoHV-1) can provoke conjunctivitis, abortions and shipping fever. BoHV-1 infection can also cause immunosuppression and increased susceptibility to secondary bacterial infections, leading to pneumonia and occasionally to death. Herein, we investigated the influence of MG-132, a proteasome inhibitor, on BoHV-1 infection in bovine kidney (MDBK) cells. Infection of MDBK cells with BoHV-1 induces apoptotic cell death that enhances virus release. Whereas, MG-132 inhibited virus-induced apoptosis and stimulated autophagy. Protein expression of viral infected cell protein 0 (bICP0), which is constitutively expressed during infection and is able to stimulate Nuclear factor kappa B (NF-κB), was completely inhibited by MG-132. These results were accompanied by a significant delay in the NF-κB activation. Interestingly, the efficient virus release provoked by BoHV-1-induced apoptosis was significantly reduced by MG-132. Overall, this study suggests that MG-132, through the activation of autophagy, may limit BoHV-1 replication during productive infection, by providing an antiviral defense mechanism.
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Irace C, Misso G, Capuozzo A, Piccolo M, Riccardi C, Luchini A, Caraglia M, Paduano L, Montesarchio D, Santamaria R. Antiproliferative effects of ruthenium-based nucleolipidic nanoaggregates in human models of breast cancer in vitro: insights into their mode of action. Sci Rep 2017; 7:45236. [PMID: 28349991 PMCID: PMC5368645 DOI: 10.1038/srep45236] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 02/17/2017] [Indexed: 12/26/2022] Open
Abstract
Looking for new metal-based anticancer treatments, in recent years many ruthenium complexes have been proposed as effective and safe potential drugs. In this context we have recently developed a novel approach for the in vivo delivery of Ru(III) complexes, preparing stable ruthenium-based nucleolipidic nanoaggregates endowed with significant antiproliferative activity. Herein we describe the cellular response to our ruthenium-containing formulations in selected models of human breast cancer. By in vitro bioscreens in the context of preclinical studies, we have focused on their ability to inhibit breast cancer cell proliferation by the activation of the intrinsic apoptotic pathway, possibly via mitochondrial perturbations involving Bcl-2 family members and predisposing to programmed cell death. In addition, the most efficient ruthenium-containing cationic nanoaggregates we have hitherto developed are able to elicit both extrinsic and intrinsic apoptosis, as well as autophagy. To limit chemoresistance and counteract uncontrolled proliferation, multiple cell death pathways activation by metal-based chemotherapeutics is a challenging, yet very promising strategy for targeted therapy development in aggressive cancer diseases, such as triple-negative breast cancer with limited treatment options. These outcomes provide valuable, original knowledge on ruthenium-based candidate drugs and new insights for future optimized cancer treatment protocols.
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Affiliation(s)
- Carlo Irace
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131-Naples, Italy
| | - Gabriella Misso
- Department of Biochemistry, Biophysics and General Pathology, University of Campania “Luigi Vanvitelli”, Via L. De Crecchio 7, 80138-Naples, Italy
| | - Antonella Capuozzo
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131-Naples, Italy
| | - Marialuisa Piccolo
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131-Naples, Italy
| | - Claudia Riccardi
- Department of Chemical Sciences, University of Naples “Federico II”, Via Cintia 21, 80126-Naples, Italy
| | - Alessandra Luchini
- Department of Chemical Sciences, University of Naples “Federico II”, Via Cintia 21, 80126-Naples, Italy
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38000, Grenoble, France
| | - Michele Caraglia
- Department of Biochemistry, Biophysics and General Pathology, University of Campania “Luigi Vanvitelli”, Via L. De Crecchio 7, 80138-Naples, Italy
| | - Luigi Paduano
- Department of Chemical Sciences, University of Naples “Federico II”, Via Cintia 21, 80126-Naples, Italy
- CSGI - Consorzio Sistemi a Grande Interfase, Department of Chemistry, University of Florence, Via della Lastruccia 3, 50019-Sesto Fiorentino (FI) Italy
| | - Daniela Montesarchio
- Department of Chemical Sciences, University of Naples “Federico II”, Via Cintia 21, 80126-Naples, Italy
| | - Rita Santamaria
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131-Naples, Italy
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Fiorito F, Santamaria R, Irace C, De Martino L, Iovane G. 2,3,7,8-tetrachlorodibenzo-p-dioxin and the viral infection. ENVIRONMENTAL RESEARCH 2017; 153:27-34. [PMID: 27883971 DOI: 10.1016/j.envres.2016.11.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Revised: 10/13/2016] [Accepted: 11/09/2016] [Indexed: 06/06/2023]
Abstract
Exposure to 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), a widespread highly toxic environmental contaminant, suppresses immune response and leads to an increased susceptibility to infectious agents. In particular, several studies have provided evidence that TCDD decreases resistance to numerous viruses. Indeed, in vivo and in vitro investigations showed that the presence of TCDD is able to interfere with the replication of both human and animal viruses, such as influenza A viruses, coxsackie virus B3, immunodeficiency virus type-1 (HIV-1), cytomegalovirus (CMV), herpes simplex II, and bovine herpesvirus 1. Moreover, TCDD could induce an exacerbation of latent infection produced by HIV-1, CMV or Epstein-Barr virus. In this review, we first describe the general effects of TCDD exposure on mammalian cells, then we focus on its influence on the viral infections. Overall, the available data support the concept that TCDD exposure may act as an additional risk factor in promoting of viral diseases.
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Affiliation(s)
- Filomena Fiorito
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy; Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, Portici, 80055 Naples, Italy.
| | - Rita Santamaria
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Carlo Irace
- Department of Pharmacy, University of Naples "Federico II", Via D. Montesano 49, 80131 Naples, Italy
| | - Luisa De Martino
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy.
| | - Giuseppe Iovane
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy
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Miniaci MC, Irace C, Capuozzo A, Piccolo M, Di Pascale A, Russo A, Lippiello P, Lepre F, Russo G, Santamaria R. Cysteine Prevents the Reduction in Keratin Synthesis Induced by Iron Deficiency in Human Keratinocytes. J Cell Biochem 2016. [PMID: 26212225 DOI: 10.1002/jcb.25286] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
L-cysteine is currently recognized as a conditionally essential sulphur amino acid. Besides contributing to many biological pathways, cysteine is a key component of the keratin protein by its ability to form disulfide bridges that confer strength and rigidity to the protein. In addition to cysteine, iron represents another critical factor in regulating keratins expression in epidermal tissues, as well as in hair follicle growth and maturation. By focusing on human keratinocytes, the aim of this study was to evaluate the effect of cysteine supplementation as nutraceutical on keratin biosynthesis, as well as to get an insight on the interplay of cysteine availability and cellular iron status in regulating keratins expression in vitro. Herein we demonstrate that cysteine promotes a significant up-regulation of keratins expression as a result of de novo protein synthesis, while the lack of iron impairs keratin expression. Interestingly, cysteine supplementation counteracts the adverse effect of iron deficiency on cellular keratin expression. This effect was likely mediated by the up-regulation of transferrin receptor and ferritin, the main cellular proteins involved in iron homeostasis, at last affecting the labile iron pool. In this manner, cysteine may also enhance the metabolic iron availability for DNA synthesis without creating a detrimental condition of iron overload. To the best of our knowledge, this is one of the first study in an in vitro keratinocyte model providing evidence that cysteine and iron cooperate for keratins expression, indicative of their central role in maintaining healthy epithelia.
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Affiliation(s)
| | - Carlo Irace
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | | | | | | | - Annapina Russo
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | | | | | - Giulia Russo
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Rita Santamaria
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
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Schreinemachers DM, Ghio AJ. Effects of Environmental Pollutants on Cellular Iron Homeostasis and Ultimate Links to Human Disease. ENVIRONMENTAL HEALTH INSIGHTS 2016; 10:35-43. [PMID: 26966372 PMCID: PMC4782969 DOI: 10.4137/ehi.s36225] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 01/20/2016] [Accepted: 01/21/2016] [Indexed: 05/04/2023]
Abstract
Chronic disease has increased in the past several decades, and environmental pollutants have been implicated. The magnitude and variety of diseases may indicate the malfunctioning of some basic mechanisms underlying human health. Environmental pollutants demonstrate a capability to complex iron through electronegative functional groups containing oxygen, nitrogen, or sulfur. Cellular exposure to the chemical or its metabolite may cause a loss of requisite functional iron from intracellular sites. The cell is compelled to acquire further iron critical to its survival by activation of iron-responsive proteins and increasing iron import. Iron homeostasis in the exposed cells is altered due to a new equilibrium being established between iron-requiring cells and the inappropriate chelator (the pollutant or its catabolite). Following exposure to environmental pollutants, the perturbation of functional iron homeostasis may be the mechanism leading to adverse biological effects. Understanding the mechanism may lead to intervention methods for this major public health concern.
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Maiolino S, Russo A, Pagliara V, Conte C, Ungaro F, Russo G, Quaglia F. Biodegradable nanoparticles sequentially decorated with Polyethyleneimine and Hyaluronan for the targeted delivery of docetaxel to airway cancer cells. J Nanobiotechnology 2015; 13:29. [PMID: 25888948 PMCID: PMC4424546 DOI: 10.1186/s12951-015-0088-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 03/19/2015] [Indexed: 12/31/2022] Open
Abstract
Background Novel polymeric nanoparticles (NPs) specifically designed for delivering chemotherapeutics in the body and aimed at improving treatment activity and selectivity, cover a very relevant area in the field of nanomedicine. Here, we describe how to build a polymer shell of Hyaluronan (HA) and Polyethyleneimine (PEI) on biodegradable NPs of poly(lactic-co-glycolic) acid (PLGA) through electrostatic interactions and to achieve NPs with unique features of sustained delivery of a docetaxel (DTX) drug cargo as well as improved intracellular uptake. Results A stable PEI or HA/PEI shell could be obtained by careful selection of layering conditions. NPs with exquisite stability in salt and protein-rich media, with size and surface charge matching biological requirements for intravenous injection and endowed with sustained DTX release could be obtained. Cytotoxicity, uptake and activity of both PLGA/PEI/HA and PLGA/PEI NPs were evaluated in CD44(+) (A549) and CD44(−) (Calu-3) lung cancer cells. In fact, PEI-coated NPs can be formed after degradation/dissociation of the surface HA because of the excess hyaluronidases overexpressed in tumour interstitium. There was no statistically significant cytotoxic effect of PLGA/PEI/HA and PLGA/PEI NPs in both cell lines, thus suggesting that introduction of PEI in NP shell was not hampered by its intrinsic toxicity. Intracellular trafficking of NPs fluorescently labeled with Rhodamine (RHO) (RHO-PLGA/PEI/HA and RHO-PLGA/PEI NPs) demonstrated an increased time-dependent uptake only for RHO-PLGA/PEI/HA NPs in A549 cells as compared to Calu-3 cells. As expected, RHO-PLGA/PEI NP uptake in A549 cells was comparable to that observed in Calu-3 cells. RHO-PLGA/PEI/HA NPs internalized into A549 cells showed a preferential perinuclear localization. Cytotoxicity data in A549 cells suggested that DTX delivered through PLGA/PEI/HA NPs exerted a more potent antiproliferative activity than free DTX. Furthermore, DTX-PLGA/PEI NPs, as hypothetical result of hyaluronidase-mediated degradation in tumor interstitium, were still able to improve the cytotoxic activity of free DTX. Conclusions Taken together, results lead us to hypothesize that biodegradable NPs coated with a PEI/HA shell represent a very promising system to treat CD44 overexpressing lung cancer. In principle, this novel nanocarrier can be extended to different single drugs and drug combinations taking advantage of the shell and core properties. Electronic supplementary material The online version of this article (doi:10.1186/s12951-015-0088-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sara Maiolino
- Laboratory of Drug Delivery, Department of Pharmacy, University of Napoli Federico II, Via Domenico Montesano 49, Napoli, 80131, Italy.
| | - Annapina Russo
- Laboratory of Biochemistry, Department of Pharmacy, University of Napoli Federico II, Via Domenico Montesano 49, Napoli, 80131, Italy.
| | - Valentina Pagliara
- Laboratory of Biochemistry, Department of Pharmacy, University of Napoli Federico II, Via Domenico Montesano 49, Napoli, 80131, Italy.
| | - Claudia Conte
- Laboratory of Drug Delivery, Department of Pharmacy, University of Napoli Federico II, Via Domenico Montesano 49, Napoli, 80131, Italy.
| | - Francesca Ungaro
- Laboratory of Drug Delivery, Department of Pharmacy, University of Napoli Federico II, Via Domenico Montesano 49, Napoli, 80131, Italy.
| | - Giulia Russo
- Laboratory of Biochemistry, Department of Pharmacy, University of Napoli Federico II, Via Domenico Montesano 49, Napoli, 80131, Italy.
| | - Fabiana Quaglia
- Laboratory of Drug Delivery, Department of Pharmacy, University of Napoli Federico II, Via Domenico Montesano 49, Napoli, 80131, Italy.
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Musumeci D, Irace C, Santamaria R, Milano D, Tecilla P, Montesarchio D. Guanine-based amphiphiles: synthesis, ion transport properties and biological activity. Bioorg Med Chem 2015; 23:1149-56. [DOI: 10.1016/j.bmc.2014.12.055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Revised: 12/18/2014] [Accepted: 12/22/2014] [Indexed: 12/17/2022]
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13
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Vitiello G, Luchini A, D'Errico G, Santamaria R, Capuozzo A, Irace C, Montesarchio D, Paduano L. Cationic liposomes as efficient nanocarriers for the drug delivery of an anticancer cholesterol-based ruthenium complex. J Mater Chem B 2015; 3:3011-3023. [DOI: 10.1039/c4tb01807a] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Cationic nanovectors loaded with Ru-based nucleolipids exert a high growth-inhibitory activity against human cancer cells (MCF-7 (A), WiDr (B), and HeLa (C)).
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Affiliation(s)
- Giuseppe Vitiello
- Department of Chemical
- Materials and Production Engineering
- University of Naples “Federico II”
- 80125 Naples
- Italy
| | - Alessandra Luchini
- CSGI – Consorzio interuniversitario per lo sviluppo di Sistemi a Grande Interfase
- Department of Chemistry
- University of Florence
- 50019 Sesto Fiorentino (FI)
- Italy
| | - Gerardino D'Errico
- CSGI – Consorzio interuniversitario per lo sviluppo di Sistemi a Grande Interfase
- Department of Chemistry
- University of Florence
- 50019 Sesto Fiorentino (FI)
- Italy
| | - Rita Santamaria
- Department of Pharmacy
- University of Naples “Federico II”
- 80131 Naples
- Italy
| | - Antonella Capuozzo
- Department of Pharmacy
- University of Naples “Federico II”
- 80131 Naples
- Italy
| | - Carlo Irace
- Department of Pharmacy
- University of Naples “Federico II”
- 80131 Naples
- Italy
| | - Daniela Montesarchio
- Department of Chemical Sciences
- University of Naples “Federico II”
- 80126 Naples
- Italy
| | - Luigi Paduano
- CSGI – Consorzio interuniversitario per lo sviluppo di Sistemi a Grande Interfase
- Department of Chemistry
- University of Florence
- 50019 Sesto Fiorentino (FI)
- Italy
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Montesarchio D, Mangiapia G, Vitiello G, Musumeci D, Irace C, Santamaria R, D'Errico G, Paduano L. A new design for nucleolipid-based Ru(iii) complexes as anticancer agents. Dalton Trans 2013; 42:16697-708. [DOI: 10.1039/c3dt52320a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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