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Yang Y, Shan S, Huang Z, Wang S, Liu Z, Yong H, Liu Z, Zhang C, Song F. Increased IP3R-3 degradation induced by acrylamide promoted Ca 2+-dependent calpain activation and axon damage in rats. Toxicol Lett 2023:S0378-4274(23)00203-5. [PMID: 37353096 DOI: 10.1016/j.toxlet.2023.06.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 04/23/2023] [Accepted: 06/10/2023] [Indexed: 06/25/2023]
Abstract
Occupational and environmental exposure to acrylamide (ACR) can cause selective peripheral and central nerve fiber degeneration. IP3R-3 is an important transmembrane Ca2+ channel on the endoplasmic reticulum (ER), previous studies have found that ACR could induce Ca2+-dependent calpain activation and axon injury, but the exact role of IP3R-3 in ACR neuropathy is still unclear. Here we show that ACR exposure (40mg/kg) markedly increased the ubiquitination of IP3R-3 in rat spinal cords, and promoted the degradation of IP3R-3 through the ubiquitin-proteasome pathway. Furthermore, the normal structure of ER, especially the mitochondrial associated membranes (MAMs) component, was significantly impaired in ACR neuropathy, and the ER stress pathway was activated, which indicated that the aberrant increase of cytoplasmic Ca2+ could be attributed the destruction of IP3R-3. Further investigation demonstrated that the proteasome inhibitor MG-132 effectively rescued the IP3R-3 loss, attenuated the intracellular Ca2+ increase, and reduced the axon loss of Neuron 2a (N2a) cells following ACR exposure. Moreover, the calpain inhibitor ALLN also reduced the loss of IP3R-3 and axon injury in N2a cells, but did not alleviate the Ca2+ increase in cytosol, supporting that the abnormal ubiquitination of IP3R-3 was the upstream of the cellular Ca2+ rise and axon damage in ACR neuropathy. Taken together, our results suggested that the aberrant IP3R-3 degradation played an important role in the disturbance of Ca2+ homeostasis and the downstream axon loss in ACR neuropathy, thus providing a potential therapeutic target for ACR neurotoxicity.
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Affiliation(s)
- Yiyu Yang
- Department of Toxicology and Nutrition, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Shulin Shan
- Department of Toxicology and Nutrition, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Zhengcheng Huang
- Department of Toxicology and Nutrition, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Shuai Wang
- Department of Toxicology and Nutrition, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Zhaoxiong Liu
- Department of Toxicology and Nutrition, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Hui Yong
- Qingdao Municipal Center for Disease Control and Prevention, Qingdao, Shandong, 266000, China
| | - Zhidan Liu
- Department of Toxicology and Nutrition, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Cuiqin Zhang
- Department of Toxicology and Nutrition, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China; School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Fuyong Song
- Department of Toxicology and Nutrition, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China.
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Kołodziejczyk AM, Grala MM, Zimon A, Białkowska K, Walkowiak B, Komorowski P. Investigation of HUVEC response to exposure to PAMAM dendrimers – changes in cell elasticity and vesicles release. Nanotoxicology 2022; 16:375-392. [DOI: 10.1080/17435390.2022.2097138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Agnieszka Maria Kołodziejczyk
- Nanomaterial Structural Research Laboratory, Bionanopark Ltd., Lodz, Poland
- Molecular and Nanostructural Biophysics Laboratory, Bionanopark Ltd., Lodz, Poland
| | | | - Aleksandra Zimon
- Nanomaterial Structural Research Laboratory, Bionanopark Ltd., Lodz, Poland
| | - Kamila Białkowska
- Molecular and Nanostructural Biophysics Laboratory, Bionanopark Ltd., Lodz, Poland
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Bogdan Walkowiak
- Nanomaterial Structural Research Laboratory, Bionanopark Ltd., Lodz, Poland
- Department of Biophysics, Institute of Materials Science and Engineering, Lodz University of Technology, Lodz, Poland
| | - Piotr Komorowski
- Nanomaterial Structural Research Laboratory, Bionanopark Ltd., Lodz, Poland
- Department of Biophysics, Institute of Materials Science and Engineering, Lodz University of Technology, Lodz, Poland
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Safety Challenges and Application Strategies for the Use of Dendrimers in Medicine. Pharmaceutics 2022; 14:pharmaceutics14061292. [PMID: 35745863 PMCID: PMC9230513 DOI: 10.3390/pharmaceutics14061292] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/11/2022] [Accepted: 06/15/2022] [Indexed: 01/07/2023] Open
Abstract
Dendrimers are used for a variety of applications in medicine but, due to their host–guest and entrapment characteristics, are particularly used for the delivery of genes and drugs. However, dendrimers are intrinsically toxic, thus creating a major limitation for their use in biological systems. To reduce such toxicity, biocompatible dendrimers have been designed and synthesized, and surface engineering has been used to create advantageous changes at the periphery of dendrimers. Although dendrimers have been reviewed previously in the literature, there has yet to be a systematic and comprehensive review of the harmful effects of dendrimers. In this review, we describe the routes of dendrimer exposure and their distribution in vivo. Then, we discuss the toxicity of dendrimers at the organ, cellular, and sub-cellular levels. In this review, we also describe how technology can be used to reduce dendrimer toxicity, by changing their size and surface functionalization, how dendrimers can be combined with other materials to generate a composite formulation, and how dendrimers can be used for the diagnosis of disease. Finally, we discuss future challenges, developments, and research directions in developing biocompatible and safe dendrimers for medical purposes.
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Lima TSM, Souza W, Geaquinto LRO, Sanches PL, Stepień EL, Meneses J, Fernández-de Gortari E, Meisner-Kober N, Himly M, Granjeiro JM, Ribeiro AR. Nanomaterial Exposure, Extracellular Vesicle Biogenesis and Adverse Cellular Outcomes: A Scoping Review. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1231. [PMID: 35407349 PMCID: PMC9000848 DOI: 10.3390/nano12071231] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 03/26/2022] [Accepted: 03/28/2022] [Indexed: 02/01/2023]
Abstract
The progressively increasing use of nanomaterials (NMs) has awakened issues related to nanosafety and its potential toxic effects on human health. Emerging studies suggest that NMs alter cell communication by reshaping and altering the secretion of extracellular vesicles (EVs), leading to dysfunction in recipient cells. However, there is limited understanding of how the physicochemical characteristics of NMs alter the EV content and their consequent physiological functions. Therefore, this review explored the relevance of EVs in the nanotoxicology field. The current state of the art on how EVs are modulated by NM exposure and the possible regulation and modulation of signaling pathways and physiological responses were assessed in detail. This review followed the manual for reviewers produced by The Joanna Brigs Institute for Scoping Reviews and the PRISMA extension for Scoping Reviews (PRISMA-ScR): checklist and explanation. The research question, "Do NMs modulate cellular responses mediated by EVs?" was analyzed following the PECO model (P (Population) = EVs, E (Exposure) = NMs, C (Comparator) = EVs without exposure to NMs, O (Outcome) = Cellular responses/change in EVs) to help methodologically assess the association between exposure and outcome. For each theme in the PECO acronym, keywords were defined, organized, and researched in PubMed, Science Direct, Scopus, Web of Science, EMBASE, and Cochrane databases, up to 30 September 2021. In vitro, in vivo, ex vivo, and clinical studies that analyzed the effect of NMs on EV biogenesis, cargo, and cellular responses were included in the analysis. The methodological quality assessment was conducted using the ToxRTool, ARRIVE guideline, Newcastle Ottawa and the EV-TRACK platform. The search in the referred databases identified 2944 articles. After applying the eligibility criteria and two-step screening, 18 articles were included in the final review. We observed that depending on the concentration and physicochemical characteristics, specific NMs promote a significant increase in EV secretion as well as changes in their cargo, especially regarding the expression of proteins and miRNAs, which, in turn, were involved in biological processes that included cell communication, angiogenesis, and activation of the immune response, etc. Although further studies are necessary, this work suggests that molecular investigations on EVs induced by NM exposure may become a potential tool for toxicological studies since they are widely accessible biomarkers that may form a bridge between NM exposure and the cellular response and pathological outcome.
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Affiliation(s)
- Thais S. M. Lima
- Directory of Life Sciences Applied Metrology, National Institute of Metrology Quality and Technology, Rio de Janeiro 25250-020, Brazil; (T.S.M.L.); (W.S.); (L.R.O.G.); (P.L.S.)
- Postgraduate Program in Biotechnology, National Institute of Metrology Quality and Technology, Rio de Janeiro 25250-020, Brazil
| | - Wanderson Souza
- Directory of Life Sciences Applied Metrology, National Institute of Metrology Quality and Technology, Rio de Janeiro 25250-020, Brazil; (T.S.M.L.); (W.S.); (L.R.O.G.); (P.L.S.)
- Postgraduate Program in Biotechnology, National Institute of Metrology Quality and Technology, Rio de Janeiro 25250-020, Brazil
| | - Luths R. O. Geaquinto
- Directory of Life Sciences Applied Metrology, National Institute of Metrology Quality and Technology, Rio de Janeiro 25250-020, Brazil; (T.S.M.L.); (W.S.); (L.R.O.G.); (P.L.S.)
- Postgraduate Program in Biotechnology, National Institute of Metrology Quality and Technology, Rio de Janeiro 25250-020, Brazil
| | - Priscila L. Sanches
- Directory of Life Sciences Applied Metrology, National Institute of Metrology Quality and Technology, Rio de Janeiro 25250-020, Brazil; (T.S.M.L.); (W.S.); (L.R.O.G.); (P.L.S.)
- Postgraduate Program in Translational Biomedicine, University Grande Rio, Duque de Caxias 25071-202, Brazil
| | - Ewa. L. Stepień
- Faculty of Physics, Astronomy, and Applied Computer Science, Jagiellonian University, 30-348 Kraków, Poland;
| | - João Meneses
- NanoSafety Group, International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal; (J.M.); (E.F.-d.G.)
| | - Eli Fernández-de Gortari
- NanoSafety Group, International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal; (J.M.); (E.F.-d.G.)
| | - Nicole Meisner-Kober
- Department of Biosciences & Medical Biology, University of Salzburg, 5020 Salzburg, Austria; (N.M.-K.); (M.H.)
| | - Martin Himly
- Department of Biosciences & Medical Biology, University of Salzburg, 5020 Salzburg, Austria; (N.M.-K.); (M.H.)
| | - José M. Granjeiro
- Directory of Life Sciences Applied Metrology, National Institute of Metrology Quality and Technology, Rio de Janeiro 25250-020, Brazil; (T.S.M.L.); (W.S.); (L.R.O.G.); (P.L.S.)
- Postgraduate Program in Biotechnology, National Institute of Metrology Quality and Technology, Rio de Janeiro 25250-020, Brazil
- Postgraduate Program in Translational Biomedicine, University Grande Rio, Duque de Caxias 25071-202, Brazil
- Dental School, Fluminense Federal University, Niterói 24020-140, Brazil
| | - Ana R. Ribeiro
- Postgraduate Program in Biotechnology, National Institute of Metrology Quality and Technology, Rio de Janeiro 25250-020, Brazil
- NanoSafety Group, International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal; (J.M.); (E.F.-d.G.)
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Elucidating inhaled liposome surface charge on its interaction with biological barriers in the lung. Eur J Pharm Biopharm 2022; 172:101-111. [PMID: 35149189 DOI: 10.1016/j.ejpb.2022.01.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 01/26/2022] [Accepted: 01/28/2022] [Indexed: 12/23/2022]
Abstract
Liposome is the promising nanocarrier for pulmonary drug delivery and surface charge is its basic property. However, there is a lack of knowledge about relationship between the liposomal surface charge and its interaction with biological barriers in the lung. Therefore, the purpose of this research is to elucidate the influence of liposome surface charge on its in vivo fate. Firstly, liposomes with positive, negative and neutral surface charge were constructed and characterized, their compatibility towards pulmonary cells was studied. Then their interaction with different biological barriers in lung, including mucus, trachea, bronchoalveolar lavage fluid (BALF) and alveolar macrophage, were investigated. Their retention behavior in lung and systemic exposure were further explored. It was demonstrated that neutrally and negatively charged liposomes were safer than positively charged ones. In the conducting airway, liposome with positive surface charge could better enhance trachea distribution but only within 2 h. In the respiratory region, both neutrally and negatively charged liposomes presented improved mucus permeability, good stability in BALF containing pulmonary surfactant, decreased macrophage uptake, prolonged lung retention and decreased systemic exposure to other organs, with neutrally charged liposome showing superior performance than the negatively charged ones. While the positively charged liposome was not stable in lung microenvironment with aggregation observed, leading to increased alveolar macrophage uptake, thereby lower pulmonary retention and higher risk of systemic exposure. In conclusion, liposomal surface charge is a tunable formulation factor to modulate the interaction with biological barriers in the lung and thus in vivo fate of inhaled liposomes.
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Figueira I, Godinho-Pereira J, Galego S, Maia J, Haskó J, Molnár K, Malhó R, Costa-Silva B, Wilhelm I, Krizbai IA, Brito MA. MicroRNAs and Extracellular Vesicles as Distinctive Biomarkers of Precocious and Advanced Stages of Breast Cancer Brain Metastases Development. Int J Mol Sci 2021; 22:5214. [PMID: 34069135 PMCID: PMC8155987 DOI: 10.3390/ijms22105214] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/07/2021] [Accepted: 05/09/2021] [Indexed: 12/28/2022] Open
Abstract
Triple negative breast cancer presents higher mortality and poorer survival rates than other breast cancer (BC) types, due to the proneness to brain metastases formation, which are usually diagnosed at advanced stages. Therefore, the discovery of BC brain metastases (BCBM) biomarkers appears pivotal for a timely intervention. With this work, we aimed to disclose microRNAs (miRNAs) and extracellular vesicles (EVs) in the circulation as biomarkers of BCBM formation. Using a BCBM animal model, we analyzed EVs in plasma by nanoparticle tracking analysis and ascertained their blood-brain barrier (BBB) origin by flow cytometry. We further evaluated circulating miRNAs by RT-qPCR and their brain expression by in situ hybridization. In parallel, a cellular model of BCBM formation, combining triple negative BC cells and BBB endothelial cells, was used to differentiate the origin of biomarkers. Established metastases were associated with an increased content of circulating EVs, particularly of BBB origin. Interestingly, deregulated miRNAs in the circulation were observed prior to BCBM detection, and their brain origin was suggested by matching alterations in brain parenchyma. In vitro studies indicated that miR-194-5p and miR-205-5p are expressed and released by BC cells, endothelial cells and during their interaction. These results highlight miRNAs and EVs as biomarkers of BCBM in early and advanced stages, respectively.
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Affiliation(s)
- Inês Figueira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (I.F.); (J.G.-P.); (S.G.)
- Farm-ID—Associação da Faculdade de Farmácia para a Investigação e Desenvolvimento, 1649-003 Lisbon, Portugal
| | - Joana Godinho-Pereira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (I.F.); (J.G.-P.); (S.G.)
- Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
| | - Sofia Galego
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (I.F.); (J.G.-P.); (S.G.)
| | - Joana Maia
- Champalimaud Centre for the Unknown, Champalimaud Foundation, 1400-038 Lisbon, Portugal; (J.M.); (B.C.-S.)
- Graduate Program in Areas of Basic and Applied Biology, University of Porto, 4099-002 Porto, Portugal
| | - János Haskó
- Biological Research Centre, Eötvös Loránd Research Network (ELKH), Institute of Biophysics, 6726 Szeged, Hungary; (J.H.); (K.M.); (I.W.); (I.A.K.)
| | - Kinga Molnár
- Biological Research Centre, Eötvös Loránd Research Network (ELKH), Institute of Biophysics, 6726 Szeged, Hungary; (J.H.); (K.M.); (I.W.); (I.A.K.)
| | - Rui Malhó
- BioISI, BioSystems and Integrative Sciences Institute, Faculty of Sciences, Universidade de Lisboa, 1749-016 Lisbon, Portugal;
| | - Bruno Costa-Silva
- Champalimaud Centre for the Unknown, Champalimaud Foundation, 1400-038 Lisbon, Portugal; (J.M.); (B.C.-S.)
| | - Imola Wilhelm
- Biological Research Centre, Eötvös Loránd Research Network (ELKH), Institute of Biophysics, 6726 Szeged, Hungary; (J.H.); (K.M.); (I.W.); (I.A.K.)
- Institute of Life Sciences, Vasile Goldis Western University of Arad, 310025 Arad, Romania
| | - István A. Krizbai
- Biological Research Centre, Eötvös Loránd Research Network (ELKH), Institute of Biophysics, 6726 Szeged, Hungary; (J.H.); (K.M.); (I.W.); (I.A.K.)
- Institute of Life Sciences, Vasile Goldis Western University of Arad, 310025 Arad, Romania
| | - Maria Alexandra Brito
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (I.F.); (J.G.-P.); (S.G.)
- Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
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Duguay BA, Lu L, Arizmendi N, Unsworth LD, Kulka M. The Possible Uses and Challenges of Nanomaterials in Mast Cell Research. THE JOURNAL OF IMMUNOLOGY 2020; 204:2021-2032. [PMID: 32253270 DOI: 10.4049/jimmunol.1800658] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 12/19/2019] [Indexed: 11/19/2022]
Abstract
Mast cells are tissue-resident immune cells that are involved in inflammation and fibrosis but also serve beneficial roles, including tissue maintenance, angiogenesis, pathogen clearance, and immunoregulation. Their multifaceted response and the ability of their mediators to target multiple organs and tissues means that mast cells play important roles in numerous conditions, including asthma, atopic dermatitis, drug sensitivities, ischemic heart disease, Alzheimer disease, arthritis, irritable bowel syndrome, infections (parasites, bacteria and viruses), and cancer. As a result, mast cells have become an important target for drug discovery and diagnostic research. Recent work has focused on applying novel nanotechnologies to explore cell biology. In this brief review, we will highlight the use of nanomaterials to modify mast cell functions and will discuss the potential of these technologies as research tools for understanding mast cell biology.
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Affiliation(s)
- Brett A Duguay
- Nanotechnology Research Centre, National Research Council Canada, Edmonton, Alberta T6G 2M9, Canada
| | - Lei Lu
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, People's Republic of China
| | - Narcy Arizmendi
- Nanotechnology Research Centre, National Research Council Canada, Edmonton, Alberta T6G 2M9, Canada
| | - Larry D Unsworth
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta T6G 1H9, Canada; and
| | - Marianna Kulka
- Nanotechnology Research Centre, National Research Council Canada, Edmonton, Alberta T6G 2M9, Canada.,Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
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Wang D, Meng Y, Wang X, Xia G, Zhang Q. The Endocytic Mechanism and Cytotoxicity of Boron-Containing Vesicles. Chem Pharm Bull (Tokyo) 2020; 68:618-627. [DOI: 10.1248/cpb.c19-00971] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Dan Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Yue Meng
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Xuelei Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Guimin Xia
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Qiang Zhang
- Beijing Key Laboratory of Molecular Pharmaceutics and State Key Laboratory of Natural and Biomimetic Drugs, Peking University
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9
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Pawlaczyk M, Schroeder G. Dendrimer-Functionalized Hybrid Materials Based on Silica as Novel Carriers of Bioactive Acids. Molecules 2020; 25:molecules25112660. [PMID: 32521636 PMCID: PMC7321234 DOI: 10.3390/molecules25112660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 05/31/2020] [Accepted: 06/03/2020] [Indexed: 11/17/2022] Open
Abstract
One of the major goals in the materials science is the design and development of non-toxic, versatile, and efficient drug delivery systems. The study reported in this paper concerns the syntheses of poly(amidoamine) (PAMAM) dendrimers with tris(2-aminoethyl)amine as an amine core and different terminal amines, and their attachment to silica matrix. The obtained ethylenediamine (EDA), triethylenetetramine (TETA), tris(2-aminoethyl)amine (TREN) and 4,7,10-trioxa-1,13-tridecanediamine (TRI-OXA) dendrimers were introduced to the support surface via an epoxy linker, leading to a loading efficiency in the range of 0.054–0.113 mmol g−1, determined using elemental and thermogravimetric analyses. The materials exhibited high adsorption capacities towards the chosen model drugs: folic, salicylic and nicotinic acid. The investigated adsorption processes were found to follow the Freundlich isotherm model, with indication of the drugs’ structure influence on the binding efficiency. Drug-loaded hybrid materials were also described for in vitro drug release in three pH-different paraphysiological media. The highest percentage release was obtained in the tests performed at pH 2.0, ranging between 35.42 and 99.83%. Satisfactory results and the versatility of PAMAM dendrimers may lead to the application of such materials not only as drug carriers dedicated to a wide range of pharmaceutics, but also as analytical tools for pre-concentration and/or the determination of biocompound contamination in samples.
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iRGD and TGN co-modified PAMAM for multi-targeted delivery of ATO to gliomas. Biochem Biophys Res Commun 2020; 527:117-123. [DOI: 10.1016/j.bbrc.2020.04.064] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 03/13/2020] [Accepted: 04/13/2020] [Indexed: 12/13/2022]
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Ghaemi B, Moshiri A, Herrmann IK, Hajipour MJ, Wick P, Amani A, Kharrazi S. Supramolecular Insights into Domino Effects of Ag@ZnO-Induced Oxidative Stress in Melanoma Cancer Cells. ACS APPLIED MATERIALS & INTERFACES 2019; 11:46408-46418. [PMID: 31729218 DOI: 10.1021/acsami.9b13420] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Recent studies suggest that cancer cell death accompanied by organelle dysfunction might be a promising approach for cancer therapy. The Golgi apparatus has a key role in cell function and may initiate signaling pathways to mitigate stress and, if irreparable, start apoptosis. It has been shown that Golgi disassembly and fragmentation under oxidative stress act as indicators for stress-mediated cell death pathways through cell cycle arrest in the G2/M phase. The present study shows that UV-induced reactive oxygen species (ROS) generation by Ag@ZnO nanoparticles (NPs) transform the Golgi structures from compressed perinuclear ribbons into detached vesicle-like structures distributed in the entire cytoplasm of melanoma cells. This study also demonstrates that Ag@ZnO NP-induced Golgi fragmentation cooccurs with G2 block of cell cycle progression, preventing cells from entering the mitosis phase. Additionally, the increased intracellular ROS production triggered by Ag@ZnO NPs upon UV exposure promoted autophagy. Taken together, Ag@ZnO NPs induce stress-related Golgi fragmentation and autophagy, finally leading to melanoma cell apoptosis. Intracellular oxidative stress generated by Ag@ZnO NPs upon UV irradiation may thus represent a targeted approach to induce cancer cell death through organelle destruction in melanoma cells, while fibroblast cells remained largely unaffected.
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Affiliation(s)
- Behnaz Ghaemi
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine (SATiM) , Tehran University of Medical Sciences , 1417755469 Tehran , Iran
- Laboratory for Particles-Biology Interactions , Swiss Federal Laboratories for Material Science and Technology (Empa) , 9014 St. Gallen , Switzerland
| | - Arfa Moshiri
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases , Shahid Beheshti University of Medical Sciences , 1985717413 Tehran , Iran
- Laboratory of Experimental Therapies in Oncology , IRCCS Instituto Giannina Gaslini , 16147 Genova , Italy
| | - Inge K Herrmann
- Laboratory for Particles-Biology Interactions , Swiss Federal Laboratories for Material Science and Technology (Empa) , 9014 St. Gallen , Switzerland
| | - Mohammad Javad Hajipour
- Precision Health Program , Michigan State University , East Lansing , Michigan 48824 , United States
| | - Peter Wick
- Laboratory for Particles-Biology Interactions , Swiss Federal Laboratories for Material Science and Technology (Empa) , 9014 St. Gallen , Switzerland
| | - Amir Amani
- Natural Products and Medicinal Plants Research Center , North Khorasan University of Medical Sciences , 9414975516 Bojnurd , Iran
| | - Sharmin Kharrazi
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine (SATiM) , Tehran University of Medical Sciences , 1417755469 Tehran , Iran
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