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Sola-Leyva A, Jabalera Y, Jimenez-Carretero M, Lázaro M, Pozo-Gualda T, García-Vargas PJ, Luque-Navarro PM, Fasiolo A, López-Cara LC, Iglesias GR, Paz Carrasco-Jiménez M, Jiménez-López C. Directing novel ChoKα1 inhibitors using MamC-mediated biomimetic magnetic nanoparticles: a way to improve specificity and efficiency. Bioorg Chem 2024; 151:107693. [PMID: 39116523 DOI: 10.1016/j.bioorg.2024.107693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Revised: 07/30/2024] [Accepted: 08/02/2024] [Indexed: 08/10/2024]
Abstract
Targeting phospholipid biosynthesis, specifically phosphatidylcholine (PC), which is enhanced in tumor cells, has been proven a suitable antitumor strategy. In fact, the overexpression of the choline kinase α1 (ChoKα1) isoform has been found in malignant cells and tumors, thus becoming an excellent antitumor target. ChoKα1 inhibitors are being synthesized at the present that show a large inhibitory activity. Two of them have been chosen in this study as representatives of different structural families: a biscationic biphenyl derivative of thieno[3,2-d]pyrimidinium substituted with a cyclic amine (here referred to as Fa22) and a biscationic biphenyl thioethano derivative of 7-chloro-quinolinium substituted with a pyrrolidinic moiety (here referred to as PL48). However, the potential use of these types of compounds in systemic treatments is hampered because of their low specificity. In fact, to enter the cell and reach their target, these inhibitors use choline transporters and inhibit choline uptake, being that one of the causes of their toxicity. One way to solve this problem could be allowing their entrance into the cells by alternative ways. With this goal, MamC-mediated magnetic nanoparticles (BMNPs), already proven effective drug nanocarriers, have been used to immobilize Fa22 and PL48. The idea is to let BMNPs enter the cell (they enter the cell by endocytosis) carrying these molecules, and, therefore, offering another way in for these compounds. In the present study, we demonstrate that the coupling of Fa22 and PL48 to BMNPs allows these molecules to enter the tumoral cell without completely inhibiting choline uptake, so, therefore, the use of Fa22 and PL48 in these nanoformulations reduces the toxicity compared to that of the soluble drugs. Moreover, the nanoassemblies Fa22-BMNPs and PL48-BMNPs allow the combination of chemotherapy and local hyperthermia therapies for a enhanced cytotoxic effect on the tumoral HepG2 cell line. The consistency of the results, independently of the drug structure, may indicate that this behavior could be extended to other ChoKα1 inhibitors, opening up a possibility for their potential use in clinics.
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Affiliation(s)
- Alberto Sola-Leyva
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, Granada 18071, Spain; Instituto de Investigación Biosanitaria ibs.GRANADA, Granada 18014, Spain.
| | - Ylenia Jabalera
- Department of Microbiology, Faculty of Sciences, University of Granada, Granada 18071, Spain.
| | | | - Marina Lázaro
- NanoMag Lab. Department of Applied Physic, Faculty of Science, University of Granada, Granada 18071, Spain
| | - Tamara Pozo-Gualda
- Department of Microbiology, Faculty of Sciences, University of Granada, Granada 18071, Spain
| | - Pedro J García-Vargas
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, Granada 18071, Spain
| | - Pilar M Luque-Navarro
- Department of Pharmaceutical and Organic Chemistry, Faculty of Pharmacy, University of Granada, Granada 18071, Spain
| | - Alberto Fasiolo
- Department of Pharmaceutical and Organic Chemistry, Faculty of Pharmacy, University of Granada, Granada 18071, Spain
| | - Luisa C López-Cara
- Department of Pharmaceutical and Organic Chemistry, Faculty of Pharmacy, University of Granada, Granada 18071, Spain.
| | - Guillermo R Iglesias
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada 18014, Spain; NanoMag Lab. Department of Applied Physic, Faculty of Science, University of Granada, Granada 18071, Spain; MNat Unit of Excellence, University of Granada, Granada 18071, Spain.
| | - María Paz Carrasco-Jiménez
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, University of Granada, Granada 18071, Spain.
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Vyas A, Petrášek Z, Nidetzky B. Limits of Non-invasive Enzymatic Activation by Local Temperature Control. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2312220. [PMID: 38344893 DOI: 10.1002/smll.202312220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Indexed: 07/26/2024]
Abstract
Enzymatic activity depends on and can therefore be regulated by temperature. Selective modulation of the activity of different enzymes in one reaction pot would require temperature control local to each type of enzyme. It has been suggested previously that immobilization of enzyme on magnetic nanoparticles and exposing them to alternating magnetic field can enhance the reaction rate. This enhancement has been explained as being mediated by temperature increase caused by dissipation of the absorbed field energy in the form of heat. However, the possibility of spatially limiting this temperature increase on the microscale has been questioned. Here, it is investigated whether an activity enhancement of the enzyme sucrose phosphorylase immobilized on magnetic beads can be achieved, how this effect is related to the increase in temperature, and whether temperature differences within one reaction pot could be generated in this way. It is found that alternating magnetic field stimulation leads to increased enzymatic activity fully attributable to the increase of bulk temperature. Both theoretical analysis and experimental data indicate that no local heating near the particle surface takes place. It is further concluded that relevant increase of surface temperature can be obtained only with macroscopic, millimeter-sized, magnetic particles.
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Affiliation(s)
- Anisha Vyas
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, Petersgasse 12, Graz, A-8010, Austria
| | - Zdeněk Petrášek
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, Petersgasse 12, Graz, A-8010, Austria
| | - Bernd Nidetzky
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, Petersgasse 12, Graz, A-8010, Austria
- Austrian Centre of Industrial Biotechnology, Krenngasse 37, Graz, A-8010, Austria
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Lázaro M, Lupiáñez P, Sola-Leyva A, Pozo-Gualda T, Oltolina F, Jimenez-Carretero M, Jimenez-Lopez C, Carrasco-Jiménez MP, Iglesias GR. The importance of cell uptake in photothermal treatments mediated by biomimetic magnetic nanoparticles. Colloids Surf B Biointerfaces 2024; 234:113722. [PMID: 38160473 DOI: 10.1016/j.colsurfb.2023.113722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 12/12/2023] [Accepted: 12/19/2023] [Indexed: 01/03/2024]
Abstract
Biomimetic magnetic nanoparticles (BMNPs) mediated by MamC have proven to be photothermal agents able to allow an optimized cytotoxicity against tumoral cells when used simultaneously as drug nanotransporters and as hyperthermia agents. However, it remains unclear whether BMNPs need to be internalized by the cells and/or if there is a threshold for internal Fe concentration for the photothermal therapy to be effective. In this study, three different situations for photothermal treatments have been simulated to disentangle the effect of BMNPs cell uptake on cell viability after photothermal treatments. Human hepatoblastoma (HepG2) cell line was treated with suspensions of BMNPs, and protocols were developed to have only intracellular BMNPs, only extracellular BMNPs or both, followed by photothermal exposure of the treated cell cultures. Our data demonstrate that: (1) Although the heating efficiency of the photothermal agent is not altered by its location (intra/extracellular), the intracellular location of BMNPs is crucial to ensure the cytotoxic effect of photothermal treatments, especially at low Fe concentration. In fact, the concentration of BMNPs needed to reach the same cytotoxic effect following upon laser irradiation of 0.2 W/cm2 is three times larger if BMNPs are located extracellularly compared to that needed if BMNPs are located intracellularly; (2) For a given location of the BMNPs, cell death increases with BMNPs (or Fe) concentration. When BMNPs are located intracellularly, there is a threshold for Fe concentration (∼ 0.5 mM at laser power intensities of 0.1 W/cm2) needed to affect cell viability following upon cell exposure to photothermia. (3) Bulk temperature rise is not the only factor accounting for cell death. Actually, temperature increases inside the cells cause more damage to cell structures and trigger cell death more efficiently than an increase in the temperature outside the cell.
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Affiliation(s)
- M Lázaro
- NanoMag Laboratory. Department of Applied Physics, Edificio I+D Josefina Castro, University of Granada, Instituto de Investigación Biosanitaria, Av. de Madrid, 28, Granada 18012, Spain
| | - P Lupiáñez
- NanoMag Laboratory. Department of Applied Physics, Edificio I+D Josefina Castro, University of Granada, Instituto de Investigación Biosanitaria, Av. de Madrid, 28, Granada 18012, Spain
| | - A Sola-Leyva
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, 18071 Granada, Spain
| | - T Pozo-Gualda
- Department of Microbiology, Faculty of Sciences, 18071 Granada, Spain
| | - F Oltolina
- Department of Microbiology, Faculty of Sciences, 18071 Granada, Spain
| | | | - C Jimenez-Lopez
- Department of Microbiology, Faculty of Sciences, 18071 Granada, Spain.
| | - M P Carrasco-Jiménez
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, 18071 Granada, Spain.
| | - G R Iglesias
- NanoMag Laboratory. Department of Applied Physics, Edificio I+D Josefina Castro, University of Granada, Instituto de Investigación Biosanitaria, Av. de Madrid, 28, Granada 18012, Spain
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Xi P, Liu S, Tang J, Wang X, Liu Y, Wang X, Hu S, Wang K, Li W, Cai Z, Shi H, Dai P. Single-cell transcriptomics reveals ferrimagnetic vortex iron oxide nanoring-mediated mild magnetic hyperthermia exerts antitumor effects by alleviating macrophage suppression in breast cancer. Biomed Pharmacother 2024; 170:115954. [PMID: 38039753 DOI: 10.1016/j.biopha.2023.115954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/13/2023] [Accepted: 11/27/2023] [Indexed: 12/03/2023] Open
Abstract
The potential of Ferrimagnetic vortex iron oxide nanoring-mediated mild magnetic hyperthermia (FVIO-MHT) in solid tumor therapy has been demonstrated. However, the impact of FVIO-MHT on the tumor microenvironment (TME) remains unclear. This study utilized single-cell transcriptome sequencing to examine the alterations in the TME in response to FVIO-MHT in breast cancer. The results revealed the cellular composition within the tumor microenvironment (TME) was primarily modified due to a decrease in tumor cells and an increased infiltration of myeloid cells. Subsequently, an enhancement in active oxygen (ROS) metabolism was observed, indicating oxidative damage to tumor cells. Interestingly, FVIO-MHT reprogrammed the macrophages' phenotypes, as evidenced by alterations in the transcriptome characteristics associated with both classic and alternative activated phenotypes. And an elevated level of ROS generation and oxidative phosphorylation suggested that activated phagocytosis and inflammation occurred in macrophages. Additionally, cell-cell communication analysis revealed that FVIO-MHT attenuated the suppression between tumor cells and macrophages by inhibiting phagocytic checkpoint and macrophage migration inhibitory factor signaling pathways. Inhibition of B2m, an anti-phagocytosis checkpoint, could promote macrophage-mediated phagocytosis and significantly inhibit tumor growth. These data emphasize FVIO-MHT may promote the antitumor capabilities of macrophages by alleviating the suppression between tumor cells and macrophages.
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Affiliation(s)
- Pei Xi
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University of Xi'an, 710069 Shaanxi, China; Shaanxi Lifegen Co., Ltd., Xi' an, China
| | - Shihui Liu
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University of Xi'an, 710069 Shaanxi, China
| | - Jiaxuan Tang
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University of Xi'an, 710069 Shaanxi, China
| | - Xun Wang
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University of Xi'an, 710069 Shaanxi, China
| | - Yongkang Liu
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University of Xi'an, 710069 Shaanxi, China
| | - Xinxin Wang
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University of Xi'an, 710069 Shaanxi, China
| | - Shuwei Hu
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University of Xi'an, 710069 Shaanxi, China
| | - Kaixuan Wang
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University of Xi'an, 710069 Shaanxi, China
| | - Wang Li
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University of Xi'an, 710069 Shaanxi, China
| | - Zhiye Cai
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University of Xi'an, 710069 Shaanxi, China
| | - Hailong Shi
- School of Basic Medicine, Shaanxi University of Chinese Medicine, Xi'an-Xianyang New Economic Zone, 712046 Shaanxi, China.
| | - Penggao Dai
- National Engineering Research Center for Miniaturized Detection Systems, College of Life Science, Northwest University of Xi'an, 710069 Shaanxi, China; Shaanxi Lifegen Co., Ltd., Xi' an, China.
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Seabra AB, Silveira NM, Ribeiro RV, Pieretti JC, Barroso JB, Corpas FJ, Palma JM, Hancock JT, Petřivalský M, Gupta KJ, Wendehenne D, Loake GJ, Durner J, Lindermayr C, Molnár Á, Kolbert Z, Oliveira HC. Nitric oxide-releasing nanomaterials: from basic research to potential biotechnological applications in agriculture. THE NEW PHYTOLOGIST 2022; 234:1119-1125. [PMID: 35266146 DOI: 10.1111/nph.18073] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 02/22/2022] [Indexed: 05/23/2023]
Abstract
Nitric oxide (NO) is a multifunctional gaseous signal that modulates the growth, development and stress tolerance of higher plants. NO donors have been used to boost plant endogenous NO levels and to activate NO-related responses, but this strategy is often hindered by the relative instability of donors. Alternatively, nanoscience offers a new, promising way to enhance NO delivery to plants, as NO-releasing nanomaterials (e.g. S-nitrosothiol-containing chitosan nanoparticles) have many beneficial physicochemical and biochemical properties compared to non-encapsulated NO donors. Nano NO donors are effective in increasing tissue NO levels and enhancing NO effects both in animal and human systems. The authors believe, and would like to emphasize, that new trends and technologies are essential for advancing plant NO research and nanotechnology may represent a breakthrough in traditional agriculture and environmental science. Herein, we aim to draw the attention of the scientific community to the potential of NO-releasing nanomaterials in both basic and applied plant research as alternatives to conventional NO donors, providing a brief overview of the current knowledge and identifying future research directions. We also express our opinion about the challenges for the application of nano NO donors, such as the environmental footprint and stakeholder's acceptance of these materials.
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Affiliation(s)
- Amedea B Seabra
- Center of Natural and Human Sciences, Federal University of ABC (UFABC), Santo André, SP, 09210-580, Brazil
| | - Neidiquele M Silveira
- Laboratory of Plant Physiology 'Coaracy M. Franco', Center R&D in Ecophysiology and Biophysics, Agronomic Institute (IAC), Campinas, SP, 13075-630, Brazil
- Laboratory of Crop Physiology, Department of Plant Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, 13083-970, Brazil
| | - Rafael V Ribeiro
- Laboratory of Crop Physiology, Department of Plant Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, 13083-970, Brazil
| | - Joana C Pieretti
- Center of Natural and Human Sciences, Federal University of ABC (UFABC), Santo André, SP, 09210-580, Brazil
| | - Juan B Barroso
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Center for Advanced Studies in Olive Grove and Olive Oils, Faculty of Experimental Sciences, Department of Experimental Biology, Campus Universitario 'Las Lagunillas' s/n, University of Jaén, Jaén, 23071, Spain
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry and Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Profesor Albareda 1, Granada, 18008, Spain
| | - José M Palma
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry and Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Profesor Albareda 1, Granada, 18008, Spain
| | - John T Hancock
- Department of Applied Sciences, University of the West of England, Bristol, BS16 1QY, UK
| | - Marek Petřivalský
- Faculty of Science, Department of Biochemistry, Palacký University, Šlechtitelů 27, Olomouc, CZ-783 71, Czech Republic
| | - Kapuganti J Gupta
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - David Wendehenne
- Agroécologie, CNRS, INRA, Institut Agro Dijon, Univ. Bourgogne Franche-Comté, Dijon, 21000, France
| | - Gary J Loake
- Institute of Molecular Plant Sciences, University of Edinburgh, Edinburgh, EH9 3JH, UK
| | - Jorg Durner
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München - German Research Center for Environmental Health, München/Neuherberg, 85764, Germany
| | - Christian Lindermayr
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München - German Research Center for Environmental Health, München/Neuherberg, 85764, Germany
| | - Árpád Molnár
- Department of Plant Biology, University of Szeged, Szeged, 6726, Hungary
| | - Zsuzsanna Kolbert
- Department of Plant Biology, University of Szeged, Szeged, 6726, Hungary
| | - Halley C Oliveira
- Department of Animal and Plant Biology, State University of Londrina (UEL), Londrina, PR, 86057-970, Brazil
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Environmentally Toxic Solid Nanoparticles in Noradrenergic and Dopaminergic Nuclei and Cerebellum of Metropolitan Mexico City Children and Young Adults with Neural Quadruple Misfolded Protein Pathologies and High Exposures to Nano Particulate Matter. TOXICS 2022; 10:toxics10040164. [PMID: 35448425 PMCID: PMC9028025 DOI: 10.3390/toxics10040164] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/17/2022] [Accepted: 03/22/2022] [Indexed: 11/17/2022]
Abstract
Quadruple aberrant hyperphosphorylated tau, beta-amyloid, α-synuclein and TDP-43 neuropathology and metal solid nanoparticles (NPs) are documented in the brains of children and young adults exposed to Metropolitan Mexico City (MMC) pollution. We investigated environmental NPs reaching noradrenergic and dopaminergic nuclei and the cerebellum and their associated ultrastructural alterations. Here, we identify NPs in the locus coeruleus (LC), substantia nigrae (SN) and cerebellum by transmission electron microscopy (TEM) and energy-dispersive X-ray spectrometry (EDX) in 197 samples from 179 MMC residents, aged 25.9 ± 9.2 years and seven older adults aged 63 ± 14.5 years. Fe, Ti, Hg, W, Al and Zn spherical and acicular NPs were identified in the SN, LC and cerebellar neural and vascular mitochondria, endoplasmic reticulum, Golgi, neuromelanin, heterochromatin and nuclear pore complexes (NPCs) along with early and progressive neurovascular damage and cerebellar endothelial erythrophagocytosis. Strikingly, FeNPs 4 ± 1 nm and Hg NPs 8 ± 2 nm were seen predominantly in the LC and SN. Nanoparticles could serve as a common denominator for misfolded proteins and could play a role in altering and obstructing NPCs. The NPs/carbon monoxide correlation is potentially useful for evaluating early neurodegeneration risk in urbanites. Early life NP exposures pose high risk to brains for development of lethal neurologic outcomes. NP emissions sources ought to be clearly recognized, regulated, and monitored; future generations are at stake.
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Environmental Nanoparticles Reach Human Fetal Brains. Biomedicines 2022; 10:biomedicines10020410. [PMID: 35203619 PMCID: PMC8962421 DOI: 10.3390/biomedicines10020410] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/01/2022] [Accepted: 02/07/2022] [Indexed: 12/10/2022] Open
Abstract
Anthropogenic ultrafine particulate matter (UFPM) and industrial and natural nanoparticles (NPs) are ubiquitous. Normal term, preeclamptic, and postconceptional weeks(PCW) 8–15 human placentas and brains from polluted Mexican cities were analyzed by TEM and energy-dispersive X-ray spectroscopy. We documented NPs in maternal erythrocytes, early syncytiotrophoblast, Hofbauer cells, and fetal endothelium (ECs). Fetal ECs exhibited caveolar NP activity and widespread erythroblast contact. Brain ECs displayed micropodial extensions reaching luminal NP-loaded erythroblasts. Neurons and primitive glia displayed nuclear, organelle, and cytoplasmic NPs in both singles and conglomerates. Nanoscale Fe, Ti, and Al alloys, Hg, Cu, Ca, Sn, and Si were detected in placentas and fetal brains. Preeclamptic fetal blood NP vesicles are prospective neonate UFPM exposure biomarkers. NPs are reaching brain tissues at the early developmental PCW 8–15 stage, and NPs in maternal and fetal placental tissue compartments strongly suggests the placental barrier is not limiting the access of environmental NPs. Erythroblasts are the main early NP carriers to fetal tissues. The passage of UFPM/NPs from mothers to fetuses is documented and fingerprinting placental single particle composition could be useful for postnatal risk assessments. Fetal brain combustion and industrial NPs raise medical concerns about prenatal and postnatal health, including neurological and neurodegenerative lifelong consequences.
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Xu D, Tang WJ, Zhu YZ, Liu Z, Yang K, Liang MX, Chen X, Wu Y, Tang JH, Zhang W. Hyperthermia promotes exosome secretion by regulating Rab7b while increasing drug sensitivity in adriamycin-resistant breast cancer. Int J Hyperthermia 2022; 39:246-257. [PMID: 35100921 DOI: 10.1080/02656736.2022.2029585] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
PURPOSE To investigate the mechanism through which hyperthermia promotes exosome secretion and drug sensitivity in adriamycin-resistant breast cancer. MATERIALS AND METHODS We first evaluated the effect of hyperthermia on adriamycin-resistant breast cancer viability and used transmission electron microscopy, nanoparticle tracking analysis, and a bicinchoninic acid kit to validate the effect of hyperthermia on exosome secretion. The effective targeting molecules and pathways changed by hyperthermia were explored by RNA microarray and verified in vitro. The adriamycin-resistant MCF-7/ADR cells co-incubated with the exosomes produced by MCF-7/ADR cells after hyperthermia were assessed. The uptake of exosomes by MCF-7/ADR cells after hyperthermia treatment was evaluated by confocal microscopy. Finally, the mechanism through which hyperthermia promotes exosome secretion by hyperthermia was determined. RESULTS Hyperthermia significantly suppressed the growth of adriamycin-resistant breast cancer cells and increased drug sensitivity by upregulating FOS and CREB5, genes related to longer overall survival in breast cancer patients. Moreover, hyperthermia promoted exosome secretion through Rab7b, a small GTPase that controls endosome transport. The upregulated FOS and CREB5 antioncogenes can be transferred to MCF-7/ADR cells by hyperthermia-treated MCF-7/ADR cell-secreted exosomes. CONCLUSIONS Our results demonstrated a novel function of hyperthermia in promoting exosome secretion in adriamycin-resistant breast cancer cells and revealed the effects of hyperthermia on tumor cell biology. These hyperthermia-triggered exosomes can carry antitumor genes to the residual tumor and tumor microenvironment, which may be more beneficial to the effects of hyperthermia. These results represent an exploration of the relationship between therapeutic strategies and exosome biology.
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Affiliation(s)
- Di Xu
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Wen-Juan Tang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Yi-Zhi Zhu
- Department of Oncology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P. R. China
| | - Zhen Liu
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Kai Yang
- School of Clinical Medicine, Xuzhou Medical University, Xuzhou, P. R. China
| | - Ming-Xing Liang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Xiu Chen
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Yang Wu
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Jin-Hai Tang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Wei Zhang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
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Cell Behavioral Changes after the Application of Magneto-Mechanical Activation to Normal and Cancer Cells. MAGNETOCHEMISTRY 2022. [DOI: 10.3390/magnetochemistry8020021] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
In vitro cell exposure to nanoparticles, depending on the applied concentration, can help in the development of theranostic tools to better detect and treat human diseases. Recent studies have attempted to understand and exploit the impact of magnetic field-actuated internalized magnetic nanoparticles (MNPs) on the behavior of cancer cells. In this work, the viability rate of MNP’s-manipulated cancerous (MCF-7, MDA-MB-231) and non-cancerous (MCF-10A) cells was investigated in three different types of low-frequency magnetic fields: static, pulsed, and rotating field mode. In the non-cancerous cell line, the cell viability decreased mostly in cells with internalized MNPs and those treated with the pulsed field mode. In both cancer cell lines, the pulsed field mode was again the optimum magnetic field, which together with internalized MNPs caused a large decrease in cells’ viability (50–55% and 70% in MCF-7 and MDA-MB-231, respectively) while the static and rotating field modes maintained the viability at high levels. Finally, F-actin staining was used to observe the changes in the cytoskeleton and DAPI staining was performed to reveal the apoptotic alterations in cells’ nuclei before and after magneto-mechanical activation. Subsequently, reduced cell viability led to a loss of actin stress fibers and apoptotic nuclear changes in cancer cells subjected to MNPs triggered by a pulsed magnetic field.
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Pucci C, Degl'Innocenti A, Belenli Gümüş M, Ciofani G. Superparamagnetic iron oxide nanoparticles for magnetic hyperthermia: Recent advancements, molecular effects, and future directions in the omics era. Biomater Sci 2022; 10:2103-2121. [DOI: 10.1039/d1bm01963e] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Superparamagnetic iron oxide nanoparticles have attracted attention in the biomedical field thanks to their ability to prompt hyperthermia in response to an alternated magnetic field. Hyperthermia is well-known for inducing...
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Jabalera Y, Montalban-Lopez M, Vinuesa-Rodriguez JJ, Iglesias GR, Maqueda M, Jimenez-Lopez C. Antibacterial directed chemotherapy using AS-48 peptide immobilized on biomimetic magnetic nanoparticles combined with magnetic hyperthermia. Int J Biol Macromol 2021; 189:206-213. [PMID: 34419547 DOI: 10.1016/j.ijbiomac.2021.08.110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 07/29/2021] [Accepted: 08/14/2021] [Indexed: 12/01/2022]
Abstract
The design of new strategies to increase the effectiveness of the antibacterial treatments is a main goal in public health. So, the aim of the study was to achieve a local antibacterial directed therapy as novel alternative allowing both, the delivery of the drug at the target, while minimizing undesirable side effects, thus anticipating an enhanced effectiveness. Hence, we have developed an innovative nanoformulation composed by biomimetic magnetic nanoparticles functionalized with the antimicrobial peptide AS-48 and its potential against Gram-positive and Gram-negative bacteria, either by itself or combined with magnetic hyperthermia has been investigated. Besides, the physical properties, binding efficiency, stability and mechanism of action of this nanoassembly are analyzed. Remarkably, the nanoassembly has a strong bactericidal effect on Gram-positive bacteria, but surprisingly also on E. coli and, finally, when combined with magnetic hyperthermia, on P. aeruginosa and K. pneumoniae. The results obtained represent a breakthrough since it allows a local treatment of infections, reducing and concentrating the dose of antimicrobial compounds, avoiding secondary effects, including the resistance generation and particularly because the combination with magnetic hyperthermia helps sensitizing resistant bacteria to the bactericidal effect of AS-48. Thus, this new formulation should be considered a promising tool in the antibacterial fight.
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Affiliation(s)
- Y Jabalera
- Department of Microbiology, Faculty of Sciences, University of Granada, 18071 Granada, Spain
| | - M Montalban-Lopez
- Department of Microbiology, Faculty of Sciences, University of Granada, 18071 Granada, Spain
| | - J J Vinuesa-Rodriguez
- Department of Microbiology, Faculty of Sciences, University of Granada, 18071 Granada, Spain
| | - G R Iglesias
- Department of Applied Physic, Faculty of Sciences, University of Granada, 18071 Granada, Spain
| | - M Maqueda
- Department of Microbiology, Faculty of Sciences, University of Granada, 18071 Granada, Spain.
| | - C Jimenez-Lopez
- Department of Microbiology, Faculty of Sciences, University of Granada, 18071 Granada, Spain.
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Antioxidant product analysis of Folium Hibisci Mutabilis. JOURNAL OF SAUDI CHEMICAL SOCIETY 2021. [DOI: 10.1016/j.jscs.2021.101272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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(Carboxymethyl-stevioside)-coated magnetic dots for enhanced magnetic hyperthermia and improved glioblastoma treatment. Colloids Surf B Biointerfaces 2021; 205:111870. [PMID: 34034224 DOI: 10.1016/j.colsurfb.2021.111870] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/04/2021] [Accepted: 05/17/2021] [Indexed: 12/13/2022]
Abstract
The use of different types of biomaterials as surfactant moities has a defined role in magnetic hyperthermia-mediated cancer therapy (MHCT). In this work, we present carboxymethyl-stevioside (CMS)-modified magnetic dots (MDs) as efficient magnetic hyperthermia agents for glioma therapy. The synthesized MDs with CMS biosurfactant coating exhibited significant water stability that resulted in a remarkable specific absorption rate of 209.25 W/g on application of alternating magnetic field of strength 359 kHz and 188 Oe. The MDs further demonstrated significant anti-migratory and anti-invasive effect on glioma C6 cells by inhibiting the gene expression of matrix metalloproteinases-2 and -9. The effect of immediate and long term hyperthermia treatment was then evaluated after repetitive exposure to hyperthermia, in terms of glioma cell viability, the effect of treatment on cell morphology, the cell cycle distribution and oxidative stress generation. The results obtained suggest the promising potential of CMS-modified nano-heaters for excellent magnetic hyperthermia-mediated glioma therapy.
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Synergistic Photothermal-Chemotherapy Based on the Use of Biomimetic Magnetic Nanoparticles. Pharmaceutics 2021; 13:pharmaceutics13050625. [PMID: 33924828 PMCID: PMC8144968 DOI: 10.3390/pharmaceutics13050625] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 04/22/2021] [Accepted: 04/25/2021] [Indexed: 12/18/2022] Open
Abstract
MamC-mediated biomimetic magnetic nanoparticles (BMNPs) have emerged as one of the most promising nanomaterials due to their magnetic features (superparamagnetic character and large magnetic moment per particle), their novel surface properties determined by MamC, their biocompatibility and their ability as magnetic hyperthermia agents. However, the current clinical application of magnetic hyperthermia is limited due to the fact that, in order to be able to reach an effective temperature at the target site, relatively high nanoparticle concentration, as well as high magnetic field strength and/or AC frequency are needed. In the present study, the potential of BMNPs to increase the temperature upon irradiation of a laser beam in the near infrared, at a wavelength at which tissues become partially transparent, is explored. Moreover, our results also demonstrate the synergy between photothermia and chemotherapy in terms of drug release and cytotoxicity, by using BMNPs functionalized with doxorubicin, and the effectiveness of this combination therapy against tumor cells in in vitro experiments. Therefore, the findings of the present study open the possibility of a novel, alternative approach to fight localized tumors.
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Nanoformulation Design Including MamC-Mediated Biomimetic Nanoparticles Allows the Simultaneous Application of Targeted Drug Delivery and Magnetic Hyperthermia. Polymers (Basel) 2020; 12:polym12081832. [PMID: 32824256 PMCID: PMC7465699 DOI: 10.3390/polym12081832] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 08/13/2020] [Indexed: 12/31/2022] Open
Abstract
The design of novel nanomaterials that can be used as multifunctional platforms allowing the combination of therapies is gaining increased interest. Moreover, if this nanomaterial is intended for a targeted drug delivery, the use of several guidance methods to increase guidance efficiency is also crucial. Magnetic nanoparticles (MNPs) allow this combination of therapies and guidance strategies. In fact, MNPs can be used simultaneously as drug nanocarriers and magnetic hyperthermia agents and, moreover, they can be guided toward the target by an external magnetic field and by their functionalization with a specific probe. However, it is difficult to find a system based on MNPs that exhibits optimal conditions as a drug nanocarrier and as a magnetic hyperthermia agent. In this work, a novel nanoformulation is proposed to be used as a multifunctional platform that also allows dual complementary guidance. This nanoformulation is based on mixtures of inorganic magnetic nanoparticles (M) that have been shown to be optimal hyperthermia agents, and biomimetic magnetic nanoparticles (BM), that have been shown to be highly efficient drug nanocarriers. The presence of the magnetosome protein MamC at the surface of BM confers novel surface properties that allow for the efficient and stable functionalization of these nanoparticles without the need of further coating, with the release of the relevant molecule being pH-dependent, improved by magnetic hyperthermia. The BM are functionalized with Doxorubicin (DOXO) as a model drug and with an antibody that allows for dual guidance based on a magnetic field and on an antibody. The present study represents a proof of concept to optimize the nanoformulation composition in order to provide the best performance in terms of the magnetic hyperthermia agent and drug nanocarrier.
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