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Hirano M, Iwata K, Yamada Y, Shinoda Y, Yamazaki M, Hino S, Ikeda A, Shimizu A, Otsuka S, Nakagawa H, Watanabe Y. AlveoMPU: Bridging the Gap in Lung Model Interactions Using a Novel Alveolar Bilayer Film. Polymers (Basel) 2024; 16:1486. [PMID: 38891433 PMCID: PMC11174738 DOI: 10.3390/polym16111486] [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: 04/16/2024] [Revised: 05/20/2024] [Accepted: 05/21/2024] [Indexed: 06/21/2024] Open
Abstract
The alveoli, critical sites for gas exchange in the lungs, comprise alveolar epithelial cells and pulmonary capillary endothelial cells. Traditional experimental models rely on porous polyethylene terephthalate or polycarbonate membranes, which restrict direct cell-to-cell contact. To address this limitation, we developed AlveoMPU, a new foam-based mortar-like polyurethane-formed alveolar model that facilitates direct cell-cell interactions. AlveoMPU features a unique anisotropic mortar-shaped configuration with larger pores at the top and smaller pores at the bottom, allowing the alveolar epithelial cells to gradually extend toward the bottom. The underside of the film is remarkably thin, enabling seeded pulmonary microvascular endothelial cells to interact with alveolar epithelial cells. Using AlveoMPU, it is possible to construct a bilayer structure mimicking the alveoli, potentially serving as a model that accurately simulates the actual alveoli. This innovative model can be utilized as a drug-screening tool for measuring transepithelial electrical resistance, assessing substance permeability, observing cytokine secretion during inflammation, and evaluating drug efficacy and pharmacokinetics.
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Affiliation(s)
- Minoru Hirano
- Frontier Research Management Office, Toyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute 480-1192, Aichi, Japan; (Y.Y.); (Y.W.)
| | - Kosuke Iwata
- Organic Device Development Department, Material Development Division, Toyoda Gosei Co., Ltd., 1-1 Higashitakasuka, Futatsudera, Ama 490-1207, Aichi, Japan; (K.I.); (M.Y.); (S.H.); (A.I.); (A.S.); (S.O.); (H.N.)
| | - Yuri Yamada
- Frontier Research Management Office, Toyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute 480-1192, Aichi, Japan; (Y.Y.); (Y.W.)
| | - Yasuhiko Shinoda
- Organic Device Development Department, Material Development Division, Toyoda Gosei Co., Ltd., 1-1 Higashitakasuka, Futatsudera, Ama 490-1207, Aichi, Japan; (K.I.); (M.Y.); (S.H.); (A.I.); (A.S.); (S.O.); (H.N.)
| | - Masateru Yamazaki
- Organic Device Development Department, Material Development Division, Toyoda Gosei Co., Ltd., 1-1 Higashitakasuka, Futatsudera, Ama 490-1207, Aichi, Japan; (K.I.); (M.Y.); (S.H.); (A.I.); (A.S.); (S.O.); (H.N.)
| | - Sayaka Hino
- Organic Device Development Department, Material Development Division, Toyoda Gosei Co., Ltd., 1-1 Higashitakasuka, Futatsudera, Ama 490-1207, Aichi, Japan; (K.I.); (M.Y.); (S.H.); (A.I.); (A.S.); (S.O.); (H.N.)
| | - Aya Ikeda
- Organic Device Development Department, Material Development Division, Toyoda Gosei Co., Ltd., 1-1 Higashitakasuka, Futatsudera, Ama 490-1207, Aichi, Japan; (K.I.); (M.Y.); (S.H.); (A.I.); (A.S.); (S.O.); (H.N.)
| | - Akiko Shimizu
- Organic Device Development Department, Material Development Division, Toyoda Gosei Co., Ltd., 1-1 Higashitakasuka, Futatsudera, Ama 490-1207, Aichi, Japan; (K.I.); (M.Y.); (S.H.); (A.I.); (A.S.); (S.O.); (H.N.)
| | - Shuhei Otsuka
- Organic Device Development Department, Material Development Division, Toyoda Gosei Co., Ltd., 1-1 Higashitakasuka, Futatsudera, Ama 490-1207, Aichi, Japan; (K.I.); (M.Y.); (S.H.); (A.I.); (A.S.); (S.O.); (H.N.)
| | - Hiroyuki Nakagawa
- Organic Device Development Department, Material Development Division, Toyoda Gosei Co., Ltd., 1-1 Higashitakasuka, Futatsudera, Ama 490-1207, Aichi, Japan; (K.I.); (M.Y.); (S.H.); (A.I.); (A.S.); (S.O.); (H.N.)
| | - Yoshihide Watanabe
- Frontier Research Management Office, Toyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute 480-1192, Aichi, Japan; (Y.Y.); (Y.W.)
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2
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Patra S, Pareek D, Gupta PS, Wasnik K, Singh G, Yadav DD, Mastai Y, Paik P. Progress in Treatment and Diagnostics of Infectious Disease with Polymers. ACS Infect Dis 2024; 10:287-316. [PMID: 38237146 DOI: 10.1021/acsinfecdis.3c00528] [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] [Indexed: 02/10/2024]
Abstract
In this era of advanced technology and innovation, infectious diseases still cause significant morbidity and mortality, which need to be addressed. Despite overwhelming success in the development of vaccines, transmittable diseases such as tuberculosis and AIDS remain unprotected, and the treatment is challenging due to frequent mutations of the pathogens. Formulations of new or existing drugs with polymeric materials have been explored as a promising new approach. Variations in shape, size, surface charge, internal morphology, and functionalization position polymer particles as a revolutionary material in healthcare. Here, an overview is provided of major diseases along with statistics on infection and death rates, focusing on polymer-based treatments and modes of action. Key issues are discussed in this review pertaining to current challenges and future perspectives.
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Affiliation(s)
- Sukanya Patra
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
| | - Divya Pareek
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
| | - Prem Shankar Gupta
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
| | - Kirti Wasnik
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
| | - Gurmeet Singh
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
| | - Desh Deepak Yadav
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
| | - Yitzhak Mastai
- Department of Chemistry, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Pradip Paik
- School of Biomedical Engineering, Indian Institute of Technology-BHU, Varanasi 221005, India
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3
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PAMAM dendrimers of generation 4.5 loaded with curcumin interfere with α-synuclein aggregation. OPENNANO 2023. [DOI: 10.1016/j.onano.2023.100140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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4
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Wang X, Wu DH, Senyo SE. mRNA therapy for myocardial infarction: A review of targets and delivery vehicles. Front Bioeng Biotechnol 2022; 10:1037051. [PMID: 36507276 PMCID: PMC9732118 DOI: 10.3389/fbioe.2022.1037051] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 11/11/2022] [Indexed: 11/27/2022] Open
Abstract
Cardiovascular diseases are the leading cause of death in the world. This is partly due to the low regenerative capacity of adult hearts. mRNA therapy is a promising approach under development for cardiac diseases. In mRNA therapy, expression of the target protein is modulated by delivering synthetic mRNA. mRNA therapy benefits cardiac regeneration by increasing cardiomyocyte proliferation, reducing fibrosis, and promoting angiogenesis. Because mRNA is translated in the cytoplasm, the delivery efficiency of mRNA into the cytoplasm and nucleus significantly affects its therapeutic efficacy. To improve delivery efficiency, non-viral vehicles such as lipid nanoparticles have been developed. Non-viral vehicles can protect mRNA from enzymatic degradation and facilitate the cellular internalization of mRNA. In addition to non-viral vehicles, viral vectors have been designed to deliver mRNA templates into cardiac cells. This article reviews lipid nanoparticles, polymer nanoparticles, and viral vectors that have been utilized to deliver mRNA into the heart. Because of the growing interest in lipid nanoparticles, recent advances in lipid nanoparticles designed for cardiac mRNA delivery are discussed. Besides, potential targets of mRNA therapy for myocardial infarction are discussed. Gene therapies that have been investigated in patients with cardiac diseases are analyzed. Reviewing mRNA therapy from a clinically relevant perspective can reveal needs for future investigations.
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Affiliation(s)
- Xinming Wang
- Department of Cardiovascular Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Douglas H. Wu
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
| | - Samuel E. Senyo
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
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5
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Ranathunge TA, Yaddehige ML, Varma JH, Smith C, Nguyen J, Owolabi I, Kolodziejczyk W, Hammer NI, Hill G, Flynt A, Watkins DL. Heteroacene-Based Amphiphile as a Molecular Scaffold for Bioimaging Probes. Front Chem 2021; 9:729125. [PMID: 34485246 PMCID: PMC8416430 DOI: 10.3389/fchem.2021.729125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 08/03/2021] [Indexed: 11/13/2022] Open
Abstract
The challenges faced with current fluorescence imaging agents have motivated us to study two nanostructures based on a hydrophobic dye, 6H-pyrrolo[3,2-b:4,5-b']bis [1,4]benzothiazine (TRPZ). TRPZ is a heteroacene with a rigid, pi-conjugated structure, multiple reactive sites, and unique spectroscopic properties. Here we coupled TRPZ to a tert-butyl carbamate (BOC) protected 2,2-bis(hydroxymethyl)propanoic acid (bisMPA) dendron via azide-alkyne Huisgen cycloaddition. Deprotection of the protected amine groups on the dendron afforded a cationic terminated amphiphile, TRPZ-bisMPA. TRPZ-bisMPA was nanoprecipitated into water to obtain nanoparticles (NPs) with a hydrodynamic radius that was <150 nm. For comparison, TRPZ-PG was encapsulated in pluronic-F127 (Mw = 12 kD), a polymer surfactant to afford NPs almost twice as large as those formed by TRPZ-bisMPA. Size and stability studies confirm the suitability of the TRPZ-bisMPA NPs for biomedical applications. The photophysical properties of the TRPZ-bisMPA NPs show a quantum yield of 49%, a Stokes shift of 201 nm (0.72 eV) and a lifetime of 6.3 ns in water. Further evidence was provided by cell viability and cellular uptake studies confirming the low cytotoxicity of TRPZ-bisMPA NPs and their potential in bioimaging.
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Affiliation(s)
- Tharindu A. Ranathunge
- Department of Chemistry and Biochemistry, University of Mississippi University, Oxford, MS, United States
| | - Mahesh Loku Yaddehige
- Department of Chemistry and Biochemistry, University of Mississippi University, Oxford, MS, United States
| | - Jordan H. Varma
- Department of Chemistry and Biochemistry, University of Mississippi University, Oxford, MS, United States
| | - Cameron Smith
- Department of Chemistry and Biochemistry, University of Mississippi University, Oxford, MS, United States
| | - Jay Nguyen
- Cellular and Molecular Biology, The University of Southern Mississippi, Hattiesburg, MS, United States
| | - Iyanuoluwani Owolabi
- Cellular and Molecular Biology, The University of Southern Mississippi, Hattiesburg, MS, United States
| | - Wojciech Kolodziejczyk
- Interdisciplinary Center for Nanotoxicity, Department of Chemistry, Physics and Atmospheric Sciences, Jackson State University, Jackson, MS, United States
| | - Nathan I. Hammer
- Department of Chemistry and Biochemistry, University of Mississippi University, Oxford, MS, United States
| | - Glake Hill
- Interdisciplinary Center for Nanotoxicity, Department of Chemistry, Physics and Atmospheric Sciences, Jackson State University, Jackson, MS, United States
| | - Alex Flynt
- Cellular and Molecular Biology, The University of Southern Mississippi, Hattiesburg, MS, United States
| | - Davita L. Watkins
- Department of Chemistry and Biochemistry, University of Mississippi University, Oxford, MS, United States
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6
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Abstract
The development of molecular nanostructures with well-defined particle size and shape is of eminent interest in biomedicine. Among many studied nanostructures, dendrimers represent the group of those most thoroughly characterized ones. Due to their unique structure and properties, dendrimers are very attractive for medical and pharmaceutical applications. Owing to the controllable cavities inside the dendrimer, guest molecules may be encapsulated, and highly reactive terminal groups are susceptible to further modifications, e.g., to facilitate target delivery. To understand the potential of these nanoparticles and to predict and avoid any adverse cellular reactions, it is necessary to know the mechanisms responsible for an efficient dendrimer uptake and the destination of their intracellular journey. In this article, we summarize the results of studies describing the dendrimer uptake, traffic, and efflux mechanisms depending on features of specific nanoparticles and cell types. We also present mechanisms of dendrimers responsible for toxicity and alteration in signal transduction pathways at the cellular level.
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Affiliation(s)
- Barbara Ziemba
- Department of Clinical and Laboratory Genetics, Medical University of Lodz, Lodz, Poland
| | - Maciej Borowiec
- Department of Clinical and Laboratory Genetics, Medical University of Lodz, Lodz, Poland
| | - Ida Franiak-Pietryga
- Department of Clinical and Laboratory Genetics, Medical University of Lodz, Lodz, Poland.,Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
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7
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Bianculli RH, Mase JD, Schulz MD. Antiviral Polymers: Past Approaches and Future Possibilities. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01273] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Rachel H. Bianculli
- Department of Chemistry, Macromolecules Innovation Institute (MII), Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Jonathan D. Mase
- Department of Chemistry, Macromolecules Innovation Institute (MII), Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Michael D. Schulz
- Department of Chemistry, Macromolecules Innovation Institute (MII), Virginia Tech, Blacksburg, Virginia 24061, United States
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8
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Qin C, Wen S, Zhu S, Liu D, Chen S, Qie J, Chen H, Lin Q. Are Poly(amidoamine) Dendrimers Safe for Ocular Applications? Toxicological Evaluation in Ocular Cells and Tissues. J Ocul Pharmacol Ther 2020; 36:715-724. [PMID: 33121321 DOI: 10.1089/jop.2020.0078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Purpose: The human eye is a sophisticated and sensitive sensory organ. Because of the existence of the blood-ocular barrier and corneal-scleral barrier, safe and efficient ocular drug delivery system is highly desired; yet, it remains an unsolved issue. Due to the unique structure and drug loading property, Poly(amidoamine) (PAMAM) has received much attention in the ocular drug delivery investigation. Herein, we evaluated the ocular cytotoxicity and biosafety of PAMAM dendrimers. Methods: The ocular cytotoxicity and biosafety of PAMAM dendrimers were evaluated by conducting in vitro and in vivo experiments on ocular systems. The in vitro effect of PAMAM dendrimer of different generations (G4.0, G5.0, and G6.0) and concentrations on ocular cell metabolism, apoptosis, and oxidative damage were quantitatively assessed. In vivo biosafety of PAMAM dendrimers were further investigated on intraocular tissue by ocular irritation and intravitreal injection approaches. Results: It is found that that the cytotoxicity of PAMAM was time and generation dependent. PAMAM at a concentration below 50 μg/mL had minimal impact on the ocular tissue, whereas it caused apparent damage when above 50 μg/mL in the investigated situation. Further, our in vivo results showed that higher concentration of dendrimer (100 μg/mL) was associated with functional impairment demonstrated via optical coherence tomography and electroretinogram, although macroscopic structural changes were absent in fundus and histopathological studies. Overall, a higher concentration of PAMAM, such as above 50 μg/mL, may cause ocular functional damage. Conclusion: The PAMAM at the concentrations lower than 50 μg/mL showed good biocompatibility and biosafety in human ocular cells and tissues.
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Affiliation(s)
- Chen Qin
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Shimin Wen
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Siqing Zhu
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Dong Liu
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Siqi Chen
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Jiqiao Qie
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Hao Chen
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Quankui Lin
- School of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, China
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9
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Nanomaterials and Their Negative Effects on Human Health. APPLICATIONS OF NANOMATERIALS IN HUMAN HEALTH 2020. [PMCID: PMC7305518 DOI: 10.1007/978-981-15-4802-4_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Mesostructured silica, dendrimers, and allotropes of carbon were exhaustively used in biomedical, cosmetics, semiconductors, and food industry applications. Considering the huge prospect of nanomaterials, their potential hazards on exposure to humans and their related ecotoxicological effects needs to be summarized. Nanoparticles with size below 100 nm could pass into the lung and then to blood through inhalation, ingestion, and skin contact. As nanotechnology innovation is expected to achieve $ 2231 million by 2025, humans will be exposed ever increasingly in day-to-day life and in industries. In this review, the latest synthetic methodology of silica, dendrimers, and CNTs, their biological applications (in vitro and in vivo) related to toxicity were discussed. In terms of structured silica, the toxic and non-toxic effect induced by specific templates (cetylpyridinium bromide, cetyltrimethylammonium bromide, dipalmitoylphosphatidylcholine, C16L-tryptophan, C16-L-histidine, and C16-L-poline) that are used to generate mesoporous silica, silica nanoparticle sizes (25, 50, 60, 115, and 500 nm), and silane functionalization (NH2 and COOH) were discussed. The recent applications of different generations (G3, G4, G5, and G6) of amphiphilic Janus dendrimers were discussed along with toxicity effect of different charged dendrimers (cationic and anionic) and effect of PEGylation. Recent synthesis, advantages, and disadvantages of carbon nanotubes (CNTs) were presented for structures like single walled carbon nanotubes (SWCNTs) and multiwalled carbon nanotubes (MWCNTs). The influence of diameter of SWCNTs (linear and short), thickness (thin and thick), effect of oxidation, metal oxide species (TiO2, Fe, and Au), and biocompatible polymers (polyethylene glycol, bisphosphonate, and alendronate) were shown in relation to molecular pathways in animal cells.
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Patel M, De Paoli SH, Elhelu OK, Farooq S, Simak J. Cell membrane disintegration and extracellular vesicle release in a model of different size and charge PAMAM dendrimers effects on cultured endothelial cells. Nanotoxicology 2019; 13:664-681. [DOI: 10.1080/17435390.2019.1570373] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Mehulkumar Patel
- Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, USA
| | - Silvia H. De Paoli
- Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, USA
| | - Oumsalama K. Elhelu
- Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, USA
| | - Sehrish Farooq
- Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, USA
| | - Jan Simak
- Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD, USA
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11
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Mehta P, Kadam S, Pawar A, Bothiraja C. Dendrimers for pulmonary delivery: current perspectives and future challenges. NEW J CHEM 2019. [DOI: 10.1039/c9nj01591d] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dendrimers and dendrimer-based delivery systems are potential biomedicines in the rapidly growing field of nanomedicine.
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Affiliation(s)
- Piyush Mehta
- Department of Quality Assurance
- Poona College of Pharmacy
- Bharati Vidyapeeth (Deemed to be University)
- Pune 38
- India
| | - Shivajirao Kadam
- Bharati Vidyapeeth Bhavan
- Bharati Vidyapeeth (Deemed to be University)
- Pune 30
- India
| | - Atmaram Pawar
- Department of Pharmaceutics
- Poona College of Pharmacy
- Bharati Vidyapeeth (Deemed to be University)
- Pune 411038
- India
| | - C. Bothiraja
- Department of Pharmaceutics
- Poona College of Pharmacy
- Bharati Vidyapeeth (Deemed to be University)
- Pune 411038
- India
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12
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An Intelligent Nanoscale Insulin Delivery System. Molecules 2018; 23:molecules23112945. [PMID: 30423891 PMCID: PMC6278487 DOI: 10.3390/molecules23112945] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/02/2018] [Accepted: 11/09/2018] [Indexed: 01/31/2023] Open
Abstract
Insulin injection relies on strict blood glucose monitoring. However, existing techniques and algorithms for blood glucose monitoring cannot be completed in a timely way. In this study, we have developed a new intelligent glucose-sensitive insulin delivery system to stabilize blood glucose levels in the body. This system does not require real-time detection of blood glucose. First, we successfully synthesized a nanoscale material called PAM-PAspPBA-b-PEG by using chemical methods. We then conducted TEM, DLS, and 1H-NMR analyses to characterize the physicochemical properties, such as size, molecular composition, and configuration of the nanomaterial. We verified the glucose responsibility of the insulin loading nanoscale material in vitro and evaluated its safety and effect on mice in vivo. Results showed that insulin-loaded PAM-PAspPBA-b-PEG is glucose-sensitive, safer and more effective than regular insulin injection. This study provides a basis for future development of smart insulin delivery systems.
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13
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Araújo RVD, Santos SDS, Igne Ferreira E, Giarolla J. New Advances in General Biomedical Applications of PAMAM Dendrimers. Molecules 2018; 23:E2849. [PMID: 30400134 PMCID: PMC6278347 DOI: 10.3390/molecules23112849] [Citation(s) in RCA: 136] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 09/07/2018] [Accepted: 09/07/2018] [Indexed: 12/25/2022] Open
Abstract
Dendrimers are nanoscopic compounds, which are monodispersed, and they are generally considered as homogeneous. PAMAM (polyamidoamine) was introduced in 1985, by Donald A. Tomalia, as a new class of polymers, named 'starburst polymers'. This important contribution of Professor Tomalia opened a new research field involving nanotechnological approaches. From then on, many groups have been using PAMAM for diverse applications in many areas, including biomedical applications. The possibility of either linking drugs and bioactive compounds, or entrapping them into the dendrimer frame can improve many relevant biological properties, such as bioavailability, solubility, and selectivity. Directing groups to reach selective delivery in a specific organ is one of the advanced applications of PAMAM. In this review, structural and safety aspects of PAMAM and its derivatives are discussed, and some relevant applications are briefly presented. Emphasis has been given to gene delivery and targeting drugs, as advanced delivery systems using PAMAM and an incentive for its use on neglected diseases are briefly mentioned.
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Affiliation(s)
- Renan Vinicius de Araújo
- Laboratory of Design and Synthesis of Chemotherapeutics Potentially Active in Neglected Diseases (LAPEN), Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo-USP, 580⁻Building 13, São Paulo SP 05508-900, Brazil.
| | - Soraya da Silva Santos
- Laboratory of Design and Synthesis of Chemotherapeutics Potentially Active in Neglected Diseases (LAPEN), Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo-USP, 580⁻Building 13, São Paulo SP 05508-900, Brazil.
| | - Elizabeth Igne Ferreira
- Laboratory of Design and Synthesis of Chemotherapeutics Potentially Active in Neglected Diseases (LAPEN), Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo-USP, 580⁻Building 13, São Paulo SP 05508-900, Brazil.
| | - Jeanine Giarolla
- Laboratory of Design and Synthesis of Chemotherapeutics Potentially Active in Neglected Diseases (LAPEN), Department of Pharmacy, Faculty of Pharmaceutical Sciences, University of São Paulo-USP, 580⁻Building 13, São Paulo SP 05508-900, Brazil.
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14
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Wang B, Sun Y, Davis TP, Ke PC, Wu Y, Ding F. Understanding Effects of PAMAM Dendrimer Size and Surface Chemistry on Serum Protein Binding with Discrete Molecular Dynamics Simulations. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2018; 6:11704-11715. [PMID: 30881771 PMCID: PMC6413314 DOI: 10.1021/acssuschemeng.8b01959] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Polyamidoamine (PAMAM) dendrimers, a class of polymeric nanoparticles (NPs) with highly-controllable sizes and surface chemistry, are promising candidates for many biomedical applications, including drug and gene delivery, imaging, and inhibition of amyloid aggregation. In circulation, binding of serum proteins with dendritic NPs renders the formation of protein corona and alters the biological identity of the NP core, which may subsequently elicit immunoresponse and cytotoxicity. Understanding the effects of PAMAM size and surface chemistry on serum protein binding is, therefore, crucial to enable their broad biomedical applications. Here, by applying atomistic discrete molecular dynamics (DMD) simulations, we first uncovered the binding of PAMAM with HSA and Ig and detailed the dependences of such binding on PAMAM size and surface modification. Compared to either anionic or cationic surfaces, modifications with neutral phosphorylcholine (PC), polyethylene glycol (PEG), and hydroxyls (OH) significantly reduced binding with proteins. The relatively strong binding between proteins and PAMAM dendrimers with charged surface groups was mainly driven by electrostatic interactions as well as hydrophobic interactions. Using steered DMD (SDMD) simulations, we conducted a force-pulling experiment in silico estimating the critical forces separating PAMAM-protein complexes and deriving the corresponding free energy barriers for dissociation. The SDMD-derived HSA-binding affinities were consistent with existing experimental measurements. Our results highlighted the association dynamics of protein-dendrimer interactions and binding affinities, whose implications range from fundamental nanobio interfacial phenomena to the development of "stealth NPs".
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Affiliation(s)
- Bo Wang
- department of Physics and Astronomy, Clemson University,
Clemson, SC 29634, USA
- Department of Systems and Computational Biology, Albert
Einstein College of Medicine, Bronx, NY 10461, USA
| | - Yunxiang Sun
- department of Physics and Astronomy, Clemson University,
Clemson, SC 29634, USA
| | - Thomas P. Davis
- ARC Centre of Excellence in Convergent Bio-Nano Science and
Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381
Royal Parade, Parkville, VIC 3052, Australia
| | - Pu Chun Ke
- ARC Centre of Excellence in Convergent Bio-Nano Science and
Technology, Monash Institute of Pharmaceutical Sciences, Monash University, 381
Royal Parade, Parkville, VIC 3052, Australia
| | - Yinghao Wu
- Department of Systems and Computational Biology, Albert
Einstein College of Medicine, Bronx, NY 10461, USA
| | - Feng Ding
- department of Physics and Astronomy, Clemson University,
Clemson, SC 29634, USA
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Osman N, Kaneko K, Carini V, Saleem I. Carriers for the targeted delivery of aerosolized macromolecules for pulmonary pathologies. Expert Opin Drug Deliv 2018; 15:821-834. [PMID: 30021074 PMCID: PMC6110405 DOI: 10.1080/17425247.2018.1502267] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 07/16/2018] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Macromolecules with unique effects and potency are increasingly being considered for application in lung pathologies. Numerous delivery strategies for these macromolecules through the lung have been investigated to improve the targeting and overall efficacy. AREAS COVERED Targeting approaches from delivery devices, formulation strategies and specific targets are discussed. EXPERT OPINION Although macromolecules are a heterogeneous group of molecules, a number of strategies have been investigated at the macro, micro, and nanoscopic scale for the delivery of macromolecules to specific sites and cells of lung tissues. Targeted approaches are already in use at the macroscopic scale through inhalation devices and formulations, but targeting strategies at the micro and nanoscopic scale are still in the laboratory stage. The combination of controlling lung deposition and targeting after deposition, through a combination of targeting strategies could be the future direction for the treatment of lung pathologies through the pulmonary route.
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Affiliation(s)
- Nashwa Osman
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - Kan Kaneko
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - Valeria Carini
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - Imran Saleem
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
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Lombardo D, Calandra P, Magazù S, Wanderlingh U, Barreca D, Pasqua L, Kiselev MA. Soft nanoparticles charge expression within lipid membranes: The case of amino terminated dendrimers in bilayers vesicles. Colloids Surf B Biointerfaces 2018; 170:609-616. [PMID: 29975909 DOI: 10.1016/j.colsurfb.2018.06.031] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 06/12/2018] [Accepted: 06/17/2018] [Indexed: 12/13/2022]
Abstract
Interactions of charged nanoparticles with model bio-membranes provide important insights about the soft interaction involved and the physico-chemical parameters that influence lipid bilayers stability, thus providing key features of their cytotoxicity effects onto cellular membranes. With this aim, the self-assembly processes between polyamidoamine dendrimers (generation G = 2.0 and G = 4.0) and dipalmitoylphosphatidylcholine (DPPC) lipids were investigated by means of Zeta potential analysis, x-rays, Raman and quasielastic light scattering experiments. Raman scattering data evidenced that dendrimers penetration produce a perturbation of the DPPC vesicles alkyl chains. A linear increase of liposome zeta-potential with increasing PAMAM concentration evidenced that only a fraction of the dendrimers effective charge contributes to the expression of the charge at the surface of the DPPC liposome. The linear region of the zeta-potential extends toward higher PAMAM concentrations as the dendrimer generation decreases from G = 4.0 to G = 2.0. Further increase in PAMAM concentration, outside of the linear region, causes a perturbation of the bilayer characterized by the loss in multilamellar correlation and the increase of DPPC liposome hydrodynamic radius. The findings of our investigation help to rationalize the effect of nanoparticles electrostatic interaction within lipid vesicles as well as to provide important insights about the perturbation of lipid bilayers membrane induced by nanoparticles inclusion.
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Affiliation(s)
- Domenico Lombardo
- Consiglio Nazionale delle Ricerche, Istituto per i Processi Chimico-Fisici, 98158 Messina, Italy.
| | - Pietro Calandra
- Consiglio Nazionale delle Ricerche, Istituto Studio Materiali Nanostrutturati, 00015 Roma, Italy
| | - Salvatore Magazù
- Dipartimento di Fisica e Scienze della Terra, Università di Messina, 98166 Messina, Italy
| | - Ulderico Wanderlingh
- Dipartimento di Fisica e Scienze della Terra, Università di Messina, 98166 Messina, Italy
| | - Davide Barreca
- Dipartimento di Scienze chimiche, biologiche, farmaceutiche ed ambientali, Università di Messina, 98166 Messina, Italy
| | - Luigi Pasqua
- Department of Environmental and Chemical Engineering, University of Calabria, 87036 Rende (CS), Italy
| | - Mikhail A Kiselev
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Dubna, Moscow 141980, Russia
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