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Okuyama H, Sugawara Y, Yamaguchi T. Machine-Learning-Aided Understanding of Protein Adsorption on Zwitterionic Polymer Brushes. ACS APPLIED MATERIALS & INTERFACES 2024; 16:25236-25245. [PMID: 38700668 PMCID: PMC11103666 DOI: 10.1021/acsami.4c01401] [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] [Revised: 04/21/2024] [Accepted: 04/24/2024] [Indexed: 05/22/2024]
Abstract
Constructing antifouling surfaces is a crucial technique for optimizing the performance of devices such as water treatment membranes and medical devices in practical environments. These surfaces are achieved by modification with hydrophilic polymers. Notably, zwitterionic (ZI) polymers have attracted considerable interest because of their ability to form a robust hydration layer and inhibit the adsorption of foulants. However, the importance of the molecular weight and density of the ZI polymer on the antifouling property is partially understood, and the surface design still retains an empirical flavor. Herein, we individually assessed the influence of the molecular weight and density of the ZI polymer on protein adsorption through machine learning. The results corroborated that protein adsorption is more strongly influenced by density than by molecular weight. Furthermore, the distribution of predicted protein adsorption against molecular weight and polymer density enabled us to determine conditions that enhanced (or weaken) antifouling. The relevance of this prediction method was also demonstrated by estimating the protein adsorption over a wide range of ionic strengths. Overall, this machine-learning-based approach is expected to contribute as a tool for the optimized functionalization of materials, extending beyond the applications of ZI polymer brushes.
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Affiliation(s)
- Hiroto Okuyama
- Laboratory for Chemistry
and Life Science, Tokyo Institute of Technology, Yokohama 226-8501, Japan
| | - Yuuki Sugawara
- Laboratory for Chemistry
and Life Science, Tokyo Institute of Technology, Yokohama 226-8501, Japan
| | - Takeo Yamaguchi
- Laboratory for Chemistry
and Life Science, Tokyo Institute of Technology, Yokohama 226-8501, Japan
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2
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Jaradat E, Meziane A, Lamprou DA. Conventional vs PEGylated loaded liposomal formulations by microfluidics for delivering hydrophilic chemotherapy. Int J Pharm 2024; 655:124077. [PMID: 38569975 DOI: 10.1016/j.ijpharm.2024.124077] [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: 02/14/2024] [Revised: 04/01/2024] [Accepted: 04/01/2024] [Indexed: 04/05/2024]
Abstract
Developing drug delivery systems (DDSs) is one of the approaches used to improve cancer treatment, with the main goal of loading cancer drugs into a carrier targeting a specific organ and avoiding the distribution to healthy tissues. Nanoparticles (NPs) have been shown to be one of the optimum carriers that can be used as DDSs. Lipid-based NPs, such as liposomes, have been investigated in the current study due to their low toxicity and ability to carry hydrophilic and hydrophobic molecules. In the current studies, conventional liposomes composed of DPPC, and cholesterol and PEGylated liposomes composed of DPPC, cholesterol, and DSPE-PEG2000 are manufactured and loaded with Carboplatin. The study focused on investigating and comparing the impact of modifying the carboplatin-loaded liposomes with different concentrations of DSPE-PEG2000 on the NP diameter, polydispersity, ζ-potential, encapsulation efficiency (EE%), and drug release. The hydrodynamic microfluidic system was used to investigate any possible improvement in the EE% over other conventional methods. The results showed the microfluidic system's promising effect in enhancing the EE% of the Carboplatin. Moreover, the results showed a smaller diameter and higher stability of the PEGylated liposome. However, conventional liposomes represent better homogeneity and higher encapsulation efficiency for hydrophilic molecules.
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Affiliation(s)
- Eman Jaradat
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | | | - Dimitrios A Lamprou
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK.
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3
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Alhazza A, Mahdipoor P, Hall R, Manda A, Lohan S, Parang K, Aliabadi HM. Modifying peptide/lipid-associated nucleic acids (PLANAs) for CRISPR/Cas9 ribonucleoprotein delivery. Eur J Pharm Sci 2024; 195:106708. [PMID: 38262570 DOI: 10.1016/j.ejps.2024.106708] [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: 10/06/2023] [Revised: 01/16/2024] [Accepted: 01/18/2024] [Indexed: 01/25/2024]
Abstract
With the first reports on the possibility of genome editing by Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) and CRISPR-associated protein (Cas)9 surfacing in 2005, the enthusiasm for protein silencing via nucleic acid delivery experienced a resurgence following a period of diminished enthusiasm due to challenges in delivering small interfering RNAs (siRNA), especially in vivo. However, delivering the components necessary for this approach into the nucleus is challenging, maybe even more than the cytoplasmic delivery of siRNA. We previously reported the birth of peptide/lipid-associated nucleic acids (PLANAs) for siRNA delivery. This project was designed to investigate the efficiency of these nanoparticles for in vitro delivery of CRISPR/Cas9 ribonucleoproteins. Our initial experiments indicated higher toxicity for PLANAs with the more efficient reverse transfection method. Therefore, polyethylene glycol (PEG) was added to the composition for PEGylation of the nanoparticles by partially replacing two of the lipid components with the PEG-conjugated counterparts. The results indicated a more significant reduction in the toxicity of the nanoparticle, less compromise in encapsulation efficiency and more PEGylation of the surface of the nanoparticles using DOPE-PEG2000 at 50 % replacement of the naïve lipid. The cell internalization and transfection efficiency showed a comparable efficiency for the PEGylated and non-PEGylated PLANAs and the commercially available Lipofectamine™ CRISPRMAX™. Next Generation Sequencing of the cloned cells showed a variety of indels in the transfected cell population. Overall, our results indicate the efficiency and safety of PEGylated PLANAs for in vitro transfection with CRISPR/Cas9 ribonucleoproteins. PEGylation has been studied extensively for in vivo delivery, and PEGylated PLANAs will be candidates for future in vivo studies.
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Affiliation(s)
- Abdulelah Alhazza
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA; Department of Pharmaceutics, Faculty of Pharmacy, Northern Border University, Rafha, 76313, Saudi Arabia
| | - Parvin Mahdipoor
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA
| | - Ryley Hall
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA
| | - Arthur Manda
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA
| | - Sandeep Lohan
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA
| | - Keykavous Parang
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA; Center for Targeted Drug Delivery, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, California 92618, USA
| | - Hamidreza Montazeri Aliabadi
- Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, CA 92618, USA; Center for Targeted Drug Delivery, Chapman University School of Pharmacy, Harry and Diane Rinker Health Science Campus, Irvine, California 92618, USA.
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4
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Vozgirdaite D, Hervé-Aubert K, Uzbekov R, Chourpa I, Allard-Vannier E. Design, optimization, characterization, and in vitro evaluation of metformin-loaded liposomes for triple negative breast cancer treatment. J Liposome Res 2024:1-15. [PMID: 38459750 DOI: 10.1080/08982104.2024.2321528] [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: 10/06/2023] [Accepted: 02/16/2024] [Indexed: 03/10/2024]
Abstract
Recently, metformin (Met) has shown to have antineoplastic properties in cancer treatment by improving hypoxic tumor conditions, and causing reduction in the synthesis of biomolecules, which are vital for cancer growth. However, as an orally administered drug, Met has low bioavailability and rapid renal clearance. Thus, the goal of this study was to vectorize Met inside liposomes in the context of triple negative breast cancer (TNBC), which currently lacks treatment options when compared to other types of breast cancer. Vectorization of Met inside liposomes was done using Bangham method by implementing double design of experiment methodology to increase Met drug loading (minimum-run resolution V characterization design and Box-Behnken design), as it is generally extremely low for hydrophilic molecules. Optimization of Met-loaded liposome synthesis was successfully achieved with drug loading of 190 mg/g (19% w/w). The optimal Met-liposomes were 170 nm in diameter with low PdI (< 0.1) and negative surface charge (-20 mV), exhibiting sustained Met release at pH 7.4. The liposomal Met delivery system was stable over several months, and successfully reduced TNBC cell proliferation due to the encapsulated drug. This study is one the first reports addressing liposome formulation through thin-film hydration using two design of experiment methods aiming to increase drug loading of Met.
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Affiliation(s)
- Daiva Vozgirdaite
- UPR 4301 CBM, CNRS, NMNS department, University of Tours, Tours, France
| | | | - Rustem Uzbekov
- Laboratoire Biologie Cellulaire et Microscopie Electronique, Faculty of Medicine, University of Tours, Tours, France
- Faculty of Bioengineering and Bioinformatics, Moscow State University, Moscow, Russia
| | - Igor Chourpa
- UPR 4301 CBM, CNRS, NMNS department, University of Tours, Tours, France
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5
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Chen J, Wang H, Zhang L, Yan W, Sheng R. Facile preparation of PEGylated polyethylenimine polymers as vaccine carriers with reduced cytotoxicity and enhanced Interleukin-2 (IL-2) production. Colloids Surf B Biointerfaces 2023; 230:113520. [PMID: 37619373 DOI: 10.1016/j.colsurfb.2023.113520] [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: 04/21/2023] [Revised: 08/16/2023] [Accepted: 08/18/2023] [Indexed: 08/26/2023]
Abstract
Developing low-cost, easy-to-prepare, biocompatible and highly efficient vaccine carriers is a promising approach to realize practical cancer immunotherapy. In this study, through facile modification of mPEG5k-4-toluenesulfonate (mPEG5k-OTs) on PEI25k under mild conditions, a series of "stealth" mPEG5k-PEI25k polymers (PP1, PP2 and PP3) were prepared, their structures and physicochemical properties were characterized and theoretically analyzed. The polymers could bind/load ovalbumin (OVA) to form mPEG5k-PEI25k/OVA complexes as negatively charged nanoparticles with small hydrodynamic particle size (80-210 nm) and narrow size distribution. Compared to PEI25k/OVA, lower cytotoxicity could be achieved on mPEG5k-PEI25k/OVA complexes in dendritic cells (DCs). In DCs-RF 33.70 T-cells co-culture system, the mPEG5k-PEI25k/OVA complexes could bring about higher IL-2 production /secretion than that of PEI25k/OVA, notably, the optimum IL-2 secretion could reach 9.3-folds of the PEI25k/OVA under serum condition (10% FBS). Moreover, the cell biological features could be optimized by selecting suitable mPEG5k-grafting ratios and/or mPEG5k-PEI25k/OVA weight ratios. Intracellular imaging results showed that the mPEG5k-PEI25k(PP3)/Rhodamine-OVA complexes mainly localized inside lysosomes. Taken together, this work provided a facile method to prepare "stealth" PEGylated-PEI25k polymers with reduced cytotoxicity, promoted OVA cross-presentation efficiency and improved serum compatibility towards cancer immunotherapy.
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Affiliation(s)
- Jian Chen
- School of Pharmacy, Shanghai Jiao Tong University, Dongchuan Road 800, Shanghai 200240, China.
| | - Hui Wang
- School of Pharmacy, Second Military Medical University, 800 Xiangyin Road, Shanghai 200433, China
| | - Li Zhang
- Instrumental Analysis Center, Shanghai Jiao Tong University, Dongchuan Road, Shanghai 200240, China.
| | - Wanying Yan
- School of Pharmacy, Shanghai Jiao Tong University, Dongchuan Road 800, Shanghai 200240, China
| | - Ruilong Sheng
- CQM - Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9000-390 Funchal, Portugal.
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6
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Fadaei MR, Mohammadi M, Fadaei MS, Jaafari MR. The crossroad of nanovesicles and oral delivery of insulin. Expert Opin Drug Deliv 2023; 20:1387-1413. [PMID: 37791986 DOI: 10.1080/17425247.2023.2266992] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 10/02/2023] [Indexed: 10/05/2023]
Abstract
INTRODUCTION Diabetes mellitus is one of the challenging health problems worldwide. Multiple daily subcutaneous injection of insulin causes poor compliance in patients. Development of efficient oral formulations to improve the quality of life of such patients has been an important goal in pharmaceutical industry. However, due to serious issues such as low bioavailability and instability, it has not been achieved yet. AREAS COVERED Due to functional properties of the vesicles and the fact that hepatic-directed vesicles of insulin could reach the clinical phases, we focused on three main vesicular delivery systems for oral delivery of insulin: liposomes, niosomes, and polymersomes. Recent papers were thoroughly discussed to provide a broad overview of such oral delivery systems. EXPERT OPINION Although conventional liposomes are unstable in the presence of bile salts, their further modifications such as surface coating could increase their stability in the GI tract. Bilosomes showed good flexibility and stability in GI fluids. Also, niosomes were stable, but they could not induce significant hypoglycemia in animal studies. Although polymersomes were effective, they are expensive and there are some issues about their safety and industrial scale-up. Also, we believe that other modifications such as addition of a targeting agent or surface coating of the vesicles could significantly increase the bioavailability of insulin-loaded vesicles.
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Affiliation(s)
- Mohammad Reza Fadaei
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Marzieh Mohammadi
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Saleh Fadaei
- Student Research Committee, School of Pharmacy, Mashhad University of Medical Science, Mashhad, Iran
| | - Mahmoud Reza Jaafari
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Pharmaceutical Nanotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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7
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Tenchov R, Sasso JM, Zhou QA. PEGylated Lipid Nanoparticle Formulations: Immunological Safety and Efficiency Perspective. Bioconjug Chem 2023. [PMID: 37162501 DOI: 10.1021/acs.bioconjchem.3c00174] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Lipid nanoparticles (LNPs) have been recognized as efficient vehicles to transport a large variety of therapeutics. Currently in the spotlight as important constituents of the COVID-19 mRNA vaccines, LNPs play a significant role in protecting and transporting mRNA to cells. As one of their key constituents, polyethylene glycol (PEG)-lipid conjugates are important in defining LNP physicochemical characteristics and biological activity. PEGylation has proven particularly efficient in conferring longer systemic circulation of LNPs, thus greatly improving their pharmacokinetics and efficiency. Along with revealing the benefits of PEG conjugates, studies have revealed unexpected immune reactions against PEGylated nanocarriers such as accelerated blood clearance (ABC), involving the production of anti-PEG antibodies at initial injection, which initiates accelerated blood clearance upon subsequent injections, as well as a hypersensitivity reaction referred to as complement activation-related pseudoallergy (CARPA). Further, data have been accumulated indicating consistent yet sometimes controversial correlations between various structural parameters of the PEG-lipids, the properties of the PEGylated LNPs, and the magnitude of the observed adverse effects. Detailed knowledge and comprehension of such correlations are of foremost importance in the efforts to diminish and eliminate the undesirable immune reactions and improve the safety and efficiency of the PEGylated medicines. Here, we present an overview based on analysis of data from the CAS Content Collection regarding the PEGylated LNP immunogenicity and overall safety concerns. A comprehensive summary has been compiled outlining how various structural parameters of the PEG-lipids affect the immune responses and activities of the LNPs, with regards to their efficiency in drug delivery. This Review is thus intended to serve as a helpful resource in understanding the current knowledge in the field, in an effort to further solve the remaining challenges and to achieve full potential.
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Affiliation(s)
- Rumiana Tenchov
- CAS, a division of the American Chemical Society, 2540 Olentangy River Road, Columbus, Ohio 43202, United States
| | - Janet M Sasso
- CAS, a division of the American Chemical Society, 2540 Olentangy River Road, Columbus, Ohio 43202, United States
| | - Qiongqiong Angela Zhou
- CAS, a division of the American Chemical Society, 2540 Olentangy River Road, Columbus, Ohio 43202, United States
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8
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Massaro M, Wu S, Baudo G, Liu H, Collum S, Lee H, Stigliano C, Segura-Ibarra V, Karmouty-Quintana H, Blanco E. Lipid nanoparticle-mediated mRNA delivery in lung fibrosis. Eur J Pharm Sci 2023; 183:106370. [PMID: 36642345 PMCID: PMC10898324 DOI: 10.1016/j.ejps.2023.106370] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 11/14/2022] [Accepted: 01/01/2023] [Indexed: 01/15/2023]
Abstract
mRNA delivery enables the specific synthesis of proteins with therapeutic potential, representing a powerful strategy in diseases lacking efficacious pharmacotherapies. Idiopathic pulmonary fibrosis (IPF) is a chronic lung disease characterized by excessive extracellular matrix (ECM) deposition and subsequent alveolar remodeling. Alveolar epithelial type 2 cells (AEC2) and fibroblasts represent important targets in IPF given their role in initiating and driving aberrant wound healing responses that lead to excessive ECM deposition. Our objective was to examine a lipid nanoparticle (LNP)-based mRNA construct as a viable strategy to target alveolar epithelial cells and fibroblasts in IPF. mRNA-containing LNPs measuring ∼34 nm had high encapsulation efficiency, protected mRNA from degradation, and exhibited sustained release kinetics. eGFP mRNA LNP transfection in human primary cells proved dose- and time-dependent in vitro. In a bleomycin mouse model of lung fibrosis, luciferase mRNA LNPs administered intratracheally led to site-specific lung accumulation. Importantly, bioluminescence signal was detected in lungs as early as 2 h after delivery, with signal still evident at 48 h. Of note, LNPs were found associated with AEC2 and fibroblasts in vivo. Findings highlight the potential for pulmonary delivery of mRNA in IPF, opening therapeutic avenues aimed at halting and potentially reversing disease progression.
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Affiliation(s)
- Matteo Massaro
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030 United States; College of Materials Sciences and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049 China
| | - Suhong Wu
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030 United States
| | - Gherardo Baudo
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030 United States; College of Materials Sciences and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049 China
| | - Haoran Liu
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030 United States
| | - Scott Collum
- Department of Biochemistry and Molecular Biology, Divisions of Critical Care, Pulmonary and Sleep Medicine, Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, TX 77030, United States
| | - Hyunho Lee
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030 United States
| | - Cinzia Stigliano
- Department of Neurosurgery, Center for Neuroregeneration, Houston Methodist Research Institute, Houston, TX 77030 United States
| | - Victor Segura-Ibarra
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030 United States
| | - Harry Karmouty-Quintana
- Department of Biochemistry and Molecular Biology, Divisions of Critical Care, Pulmonary and Sleep Medicine, Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, TX 77030, United States
| | - Elvin Blanco
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030 United States; Department of Cardiology, Houston Methodist DeBakey Heart and Vascular Center, Houston Methodist Hospital, Houston, TX 77030 United States; Department of Medicine, Weill Cornell Medical College, New York, NY 10065, United States.
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Mal S, Duarte E Souza L, Allard C, David C, Blais-Ouellette S, Gaboury L, Tang NYW, Martel R. Duplex Phenotype Detection and Targeting of Breast Cancer Cells Using Nanotube Nanoprobes and Raman Imaging. ACS APPLIED BIO MATERIALS 2023; 6:1173-1184. [PMID: 36795958 DOI: 10.1021/acsabm.2c01002] [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: 02/18/2023]
Abstract
We designed, synthesized, and characterized a Raman nanoprobe made of dye-sensitized single-walled carbon nanotubes (SWCNTs) that can selectively target biomarkers of breast cancer cells. The nanoprobe is composed of Raman-active dyes encapsulated inside a SWCNT, whose surface is covalently grafted with poly(ethylene glycol) (PEG) at a density of ∼0.7% per carbon. Using α-sexithiophene- and β-carotene-derived nanoprobes covalently bound to an antibody, either anti-E-cadherin (E-cad) or anti-keratin-19 (KRT19), we prepared two distinct nanoprobes that specifically recognize biomarkers on breast cancer cells. Immunogold experiments and transmission electron microscopy (TEM) images are first used to guide the synthesis protocol for higher PEG-antibody attachment and biomolecule loading capacity. The duplex of nanoprobes was then applied to target E-cad and KRT19 biomarkers in T47D and MDA-MB-231 breast cancer cell lines. Hyperspectral imaging of specific Raman bands allows for simultaneous detection of this nanoprobe duplex on target cells without the need for additional filters or subsequent incubation steps. Our results confirm the high reproducibility of the nanoprobe design for duplex detection and highlight the potential of Raman imaging for advanced biomedical applications in oncology.
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Affiliation(s)
- Suraj Mal
- Department of Chemistry, University of Montreal, Montreal, Quebec H3C 3J7, Canada
| | - Layane Duarte E Souza
- Institute for Research in Immunology and Cancer (IRIC), Department of Pathology and Cell Biology, University of Montreal, Montreal, Quebec H3T 1J4, Canada
| | - Charlotte Allard
- Department of Engineering Physics, Polytechnique of Montreal, Montreal, Quebec H3T 1J4, Canada
| | - Carolane David
- Department of Chemistry, University of Montreal, Montreal, Quebec H3C 3J7, Canada
| | | | - Louis Gaboury
- Institute for Research in Immunology and Cancer (IRIC), Department of Pathology and Cell Biology, University of Montreal, Montreal, Quebec H3T 1J4, Canada
| | - Nathalie Y-W Tang
- Department of Chemistry, University of Montreal, Montreal, Quebec H3C 3J7, Canada
| | - Richard Martel
- Department of Chemistry, University of Montreal, Montreal, Quebec H3C 3J7, Canada
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Yoo J, Kim K, Kim S, Park HH, Shin H, Joo J. Tailored polyethylene glycol grafting on porous nanoparticles for enhanced targeting and intracellular siRNA delivery. NANOSCALE 2022; 14:14482-14490. [PMID: 36134732 DOI: 10.1039/d2nr02995b] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Surface functionalization of nanoparticles with polyethylene glycol (PEG) has been widely demonstrated as an anti-opsonization strategy to reduce protein corona formation which is one of the major concerns affecting target receptor recognition. However, excessive surface passivation with PEG can lead to the strong inhibition of cellular uptake and less efficient binding to target receptors, resulting in reduced potential of targeted delivery. To improve specific cell targeting while reducing the nonspecific protein adsorption, a secondary packaging of the nanoparticles with shorter PEG chains, making the targeting ligands densely stretched out for enhanced molecular recognition is demonstrated. Particularly, we report the tailored surface functionalization of the porous nanoparticles that require the stealth shielding onto the open-pore region. This study shows that, in addition to the surface chemistry, the conformation of the PEG layers controls the cellular interaction of nanoparticles. Since the distance between neighboring PEG chains determines the structural conformation of the grafted PEG molecules, tailored PEG combinations can efficiently resist the adsorption of serum proteins onto the pores by transitioning the conformation of the PEG chains, thus significantly enhance the targeting efficiency (>5-fold). The stretched brush PEG conformation with secondary packaging of shorter PEG chains could be a promising anti-opsonization and active targeting strategy for efficient intracellular delivery of nanoparticles.
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Affiliation(s)
- Jounghyun Yoo
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea.
| | - Kyunghwan Kim
- Department of Chemistry, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea
| | - Suhyun Kim
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea.
| | - Hee Ho Park
- Department of Bioengineering, Hanyang University, Seoul 04763, Republic of Korea.
| | - Heungsoo Shin
- Department of Bioengineering, Hanyang University, Seoul 04763, Republic of Korea.
| | - Jinmyoung Joo
- Department of Biomedical Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, Republic of Korea.
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11
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Cardiolipin for Enhanced Cellular Uptake and Cytotoxicity of Thermosensitive Liposome-Encapsulated Daunorubicin toward Breast Cancer Cell Lines. Int J Mol Sci 2022; 23:ijms231911763. [PMID: 36233061 PMCID: PMC9569717 DOI: 10.3390/ijms231911763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 09/22/2022] [Accepted: 09/30/2022] [Indexed: 11/16/2022] Open
Abstract
Daunorubicin (DNR) and cardiolipin (CL) were co-delivered using thermosensitive liposomes (TSLs). 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC), 1-myristoyl-2-stearoyl-sn-glycero-3-phosphocholine (MSPC), cholesterol, 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[methoxy(polyethylene glycol)-2000] or DSPE-mPEG (2000) and CL were used in the formulation of liposomes at a molar ratio of 57:40:30:3:20, respectively. CL forms raft-like microdomains that may relocate and change lipid organization of the outer and inner mitochondrial membranes. Such transbilayer lipid movement eventually leads to membrane permeabilization. TSLs were prepared by thin-film hydration (drug:lipid ratio 1:5) where DNR was encapsulated within the aqueous core of the liposomes and CL acted as a component of the lipid bilayer. The liposomes exhibited high drug encapsulation efficiency (>90%), small size (~115 nm), narrow size distribution (polydispersity index ~0.12), and a rapid release profile under the influence of mild hyperthermia. The liposomes also exhibited ~4-fold higher cytotoxicity against MDA-MB-231 cells compared to DNR or liposomes similar to DaunoXome® (p < 0.001). This study provides a basis for developing a co-delivery system of DNR and CL encapsulated in liposomes for treatment of breast cancer.
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de Souza Guimarães M, Cachumba JJM, Bueno CZ, Torres-Obreque KM, Lara GVR, Monteiro G, Barbosa LRS, Pessoa A, Rangel-Yagui CDO. Peg-Grafted Liposomes for L-Asparaginase Encapsulation. Pharmaceutics 2022; 14:1819. [PMID: 36145567 PMCID: PMC9503594 DOI: 10.3390/pharmaceutics14091819] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/17/2022] [Accepted: 08/24/2022] [Indexed: 11/17/2022] Open
Abstract
L-asparaginase (ASNase) is an important biological drug used to treat Acute Lymphoblastic Leukemia (ALL). It catalyzes the hydrolysis of L-asparagine (Asn) in the bloodstream and, since ALL cells cannot synthesize Asn, protein synthesis is impaired leading to apoptosis. Despite its therapeutic importance, ASNase treatment is associated to side effects, mainly hypersensitivity and immunogenicity. Furthermore, degradation by plasma proteases and immunogenicity shortens the enzyme half-life. Encapsulation of ASNase in liposomes, nanostructures formed by the self-aggregation of phospholipids, is an attractive alternative to protect the enzyme from plasma proteases and enhance pharmacokinetics profile. In addition, PEGylation might prolong the in vivo circulation of liposomes owing to the spherical shielding conferred by the polyethylene (PEG) corona around the nanostructures. In this paper, ASNase was encapsulated in liposomal formulations composed by 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) or 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) containing or not different concentrations of 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N [methoxy (polyethylene glycol)-2000] (DSPE-PEG). Nanostructures of approximately 142-202 nm of diameter and polydispersity index (PDI) of 0.069 to 0.190 were obtained and the vesicular shape confirmed by Transmission Electron Microscopy (TEM and cryo-TEM). The encapsulation efficiency (%EE) varied from 10% to 16%. All formulations presented activity in contact with ASNase substrate, indicating the liposomes permeability to Asn and/or enzyme adsorption at the nanostructures' surface; the highest activity was observed for DMPC/DSPE-PEG 10%. Finally, we investigated the activity against the Molt 4 leukemic cell line and found a lower IC50 for the DMPC/DSPE-PEG 10% formulation in comparison to the free enzyme, indicating our system could provide in vivo activity while protecting the enzyme from immune system recognition and proteases degradation.
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Affiliation(s)
- Marina de Souza Guimarães
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Sciences, University of São Paulo, São Paulo 05508-000, SP, Brazil
| | - Jorge Javier Muso Cachumba
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Sciences, University of São Paulo, São Paulo 05508-000, SP, Brazil
| | - Cecilia Zorzi Bueno
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Sciences, University of São Paulo, São Paulo 05508-000, SP, Brazil
| | - Karin Mariana Torres-Obreque
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Sciences, University of São Paulo, São Paulo 05508-000, SP, Brazil
| | - Grace Verónica Ruiz Lara
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Sciences, University of São Paulo, São Paulo 05508-000, SP, Brazil
| | - Gisele Monteiro
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Sciences, University of São Paulo, São Paulo 05508-000, SP, Brazil
| | - Leandro Ramos Souza Barbosa
- Department of General Physics, Institute of Physics, University of São Paulo, São Paulo 05508-000, SP, Brazil
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-100, SP, Brazil
| | - Adalberto Pessoa
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Sciences, University of São Paulo, São Paulo 05508-000, SP, Brazil
| | - Carlota de Oliveira Rangel-Yagui
- Department of Biochemical and Pharmaceutical Technology, School of Pharmaceutical Sciences, University of São Paulo, São Paulo 05508-000, SP, Brazil
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13
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Changeable net charge on nanoparticles facilitates intratumor accumulation and penetration. J Control Release 2022; 346:392-404. [PMID: 35461967 DOI: 10.1016/j.jconrel.2022.04.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 04/05/2022] [Accepted: 04/15/2022] [Indexed: 12/24/2022]
Abstract
The Enhanced Permeability and Retention (EPR) effect is a golden strategy for the nanoparticle (NP)-based targeting of solid tumors, and the surface property of NPs might be a determinant on their targeting efficiency. Poly(ethylene glycol) (PEG) is commonly used as a shell material; however, it has been pointed out that PEG-coated NPs may exhibit accumulation near tumor vasculature rather than having homogenous intratumor distribution. The PEG shell plays a pivotal role on prolonged blood circulation of NPs but potentially impairs the intratumor retention of NPs. In this study, we report on a shell material to enhance tumor-targeted delivery of NPs by maximizing the EPR effect: polyzwitterion based on ethylenediamine-based carboxybetaine [PGlu(DET-Car)], which shows the changeable net charge responding to surrounding pH. The net charge of PGlu(DET-Car), is neutral at physiological pH 7.4, allowing it to exhibit a stealth property during the blood circulation; however, it becomes cationic for tissue-interactive performance under tumorous acidic conditions owing to the stepwise protonation behavior of ethylenediamine. Indeed, the PGlu(DET-Car)-coated NPs (i.e., gold NPs in the present study) exhibited prolonged blood circulation and remarkably enhanced tumor accumulation and retention than PEG-coated NPs, achieving 32.1% of injected dose/g of tissue, which was 4.2 times larger relative to PEG-coated NPs. Interestingly, a considerable portion of PGlu(DET-Car)-coated NPs clearly penetrated into deeper tumor sites and realized the effective accumulation in hypoxic regions, probably because the cationic net charge of PGlu(DET-Car) is augmented in more acidic hypoxic regions. This study suggests that the changeable net charge on the NP surface in response to tumorous acidic conditions is a promising strategy for tumor-targeted delivery based on the EPR effect.
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14
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pH-Sensitive Liposomes for Enhanced Cellular Uptake and Cytotoxicity of Daunorubicin in Melanoma (B16-BL6) Cell Lines. Pharmaceutics 2022; 14:pharmaceutics14061128. [PMID: 35745701 PMCID: PMC9228428 DOI: 10.3390/pharmaceutics14061128] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/13/2022] [Accepted: 05/23/2022] [Indexed: 02/05/2023] Open
Abstract
Daunorubicin (DNR) was delivered using a pH-sensitive liposomal system in B16-BL6 melanoma cell lines for enhanced cytotoxic effects. DNR was encapsulated within liposomes and CL as a component of the lipid bilayer. PEGylated pH-sensitive liposomes, containing CL, were prepared in the molar ratio of 40:30:5:17:8 for DOPE/cholesterol/DSPE-mPEG (2000)/CL/SA using the lipid film hydration method and loaded with DNR (drug: lipid ratio of 1:5). The CL liposomes exhibited high drug encapsulation efficiency (>90%), a small size (~94 nm), narrow size distribution (polydispersity index ~0.16), and a rapid release profile at acidic pH (within 1 h). Furthermore, the CL liposomes exhibited 12.5- and 2.5-fold higher cytotoxicity compared to DNR or liposomes similar to DaunoXome®. This study provides a basis for developing DNR pH-sensitive liposomes for melanoma treatment.
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15
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Kowalska M, Broniatowski M, Mach M, Płachta Ł, Wydro P. The effect of the polyethylene glycol chain length of a lipopolymer (DSPE-PEGn) on the properties of DPPC monolayers and bilayers. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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Shi L, Zhang J, Zhao M, Tang S, Cheng X, Zhang W, Li W, Liu X, Peng H, Wang Q. Effects of polyethylene glycol on the surface of nanoparticles for targeted drug delivery. NANOSCALE 2021; 13:10748-10764. [PMID: 34132312 DOI: 10.1039/d1nr02065j] [Citation(s) in RCA: 229] [Impact Index Per Article: 76.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
The rapid development of drug nanocarriers has benefited from the surface hydrophilic polymers of particles, which has improved the pharmacokinetics of the drugs. Polyethylene glycol (PEG) is a kind of polymeric material with unique hydrophilicity and electrical neutrality. PEG coating is a crucial factor to improve the biophysical and chemical properties of nanoparticles and is widely studied. Protein adherence and macrophage removal are effectively relieved due to the existence of PEG on the particles. This review discusses the PEGylation methods of nanoparticles and related techniques that have been used to detect the PEG coverage density and thickness on the surface of the nanoparticles in recent years. The molecular weight (MW) and coverage density of the PEG coating on the surface of nanoparticles are then described to explain the effects on the biophysical and chemical properties of nanoparticles.
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Affiliation(s)
- Liwang Shi
- Department of Pharmaceutics, Daqing Campus of Harbin Medical University, 1 Xinyang Rd., Daqing 163319, China.
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17
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Le NTT, Nguyen DTD, Nguyen NH, Nguyen CK, Nguyen DH. Methoxy polyethylene glycol–cholesterol modified soy lecithin liposomes for poorly
water‐soluble
anticancer drug delivery. J Appl Polym Sci 2020. [DOI: 10.1002/app.49858] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Ngoc Thuy Trang Le
- Graduate University of Science and Technology Vietnam Academy of Science and Technology Hanoi City Vietnam
- Institute of Applied Materials Science Vietnam Academy of Science and Technology Ho Chi Minh City Vietnam
| | - Dinh Tien Dung Nguyen
- Institute of Applied Materials Science Vietnam Academy of Science and Technology Ho Chi Minh City Vietnam
| | - Ngoc Hoi Nguyen
- Institute of Applied Materials Science Vietnam Academy of Science and Technology Ho Chi Minh City Vietnam
| | - Cuu Khoa Nguyen
- Institute of Applied Materials Science Vietnam Academy of Science and Technology Ho Chi Minh City Vietnam
| | - Dai Hai Nguyen
- Graduate University of Science and Technology Vietnam Academy of Science and Technology Hanoi City Vietnam
- Institute of Applied Materials Science Vietnam Academy of Science and Technology Ho Chi Minh City Vietnam
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18
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Sezigen S, Esim O, Sarper M, Savaser A. In vitro evaluation of two different types of obidoxime-loaded nanoparticles for cytotoxicity and blood-brain barrier transport. Toxicol Lett 2020; 330:53-58. [PMID: 32380126 DOI: 10.1016/j.toxlet.2020.03.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 03/16/2020] [Accepted: 03/23/2020] [Indexed: 10/24/2022]
Abstract
Nerve agents (NA) are chemical warfare munitions and their exposure causes a progressive inhibition of acetylcholinesterase (AChE). This inhibition causes NA-induced brain damage in central nervous system (CNS). Oximes reactivate AChE in both the peripheral nervous system and the CNS. Transport of the oxime across the blood-brain barrier (BBB) in the existed therapeutic concentrations at the brain parenchyma determines the effectiveness of antidote therapy on respiratory depression and NA-induced brain damage. However, oximes could not cross the BBB in therapeutic concentrations. The aim of this study was to load AChE reactivator obidoxime chloride to PLGA and PEG-b-PLGA nanoparticles and to improve the BBB transport of the molecule. Brain microvascular endothelial cells were used as the BBB model. 79.3 ± 4.2% of obidoxime was released from PLGA nanoparticles and 88.2 ± 4.4% of obidoxime was released from PEG-b-PLGA nanoparticles within 24 h. It was found that PEG-b-PLGA nanoparticles were ideal drug carrier because of its low tissue toxicity, few side effects, and controllable drug release profile. Transport efficiency of obidoxime across the BBB is a major challenge in the prevention of the CNS, the effectiveness of NA poisoning and new strategies like using obidoxime-loaded PEG-b-PLGA nanoparticles could overcome this challenge for the management of NA-induced brain damage.
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Affiliation(s)
- Sermet Sezigen
- University of Health Sciences, Department of Medical CBRN Defense, 06010, Ankara, Turkey.
| | - Ozgur Esim
- University of Health Sciences, Gulhane Faculty of Pharmacy, Department of Pharmaceutical Technology, 06010, Ankara, Turkey
| | - Meral Sarper
- University of Health Sciences, Gulhane Institute of Health Sciences, 06010, Ankara, Turkey
| | - Ayhan Savaser
- University of Health Sciences, Gulhane Faculty of Pharmacy, Department of Pharmaceutical Technology, 06010, Ankara, Turkey
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19
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Saraswat AL, Maher TJ. Development and optimization of stealth liposomal system for enhanced in vitro cytotoxic effect of quercetin. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2019.101477] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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20
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Kesarwani V, Kelly HG, Shankar M, Robinson KJ, Kent SJ, Traven A, Corrie SR. Characterization of Key Bio-Nano Interactions between Organosilica Nanoparticles and Candida albicans. ACS APPLIED MATERIALS & INTERFACES 2019; 11:34676-34687. [PMID: 31483991 DOI: 10.1021/acsami.9b10853] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Nanoparticle-cell interactions between silica nanomaterials and mammalian cells have been investigated extensively in the context of drug delivery, diagnostics, and imaging. While there are also opportunities for applications in infectious disease, the interactions of silica nanoparticles with pathogenic microbes are relatively underexplored. To bridge this knowledge gap, here, we investigate the effects of organosilica nanoparticles of different sizes, concentrations, and surface coatings on surface association and viability of the major human fungal pathogen Candida albicans. We show that uncoated and PEGylated organosilica nanoparticles associate with C. albicans in a size and concentration-dependent manner, but on their own, do not elicit antifungal activity. The particles are also shown to associate with human white blood cells, in a similar trend as observed with C. albicans, and remain noncytotoxic toward neutrophils. Smaller particles are shown to have low association with C. albicans in comparison to other sized particles and their association with blood cells was also observed to be minimal. We further demonstrate that by chemically immobilizing the clinically important echinocandin class antifungal drug, caspofungin, to PEGylated nanoparticles, the cell-material interaction changes from benign to antifungal, inhibiting C. albicans growth when provided in high local concentration on a surface. Our study provides the foundation for defining how organosilica particles could be tailored for clinical applications against C. albicans. Possible future developments include designing biomaterials that could detect, prevent, or treat bloodstream C. albicans infections, which at present have very high patient mortality.
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Affiliation(s)
- Vidhishri Kesarwani
- Department of Chemical Engineering and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology , Monash University , Clayton , Victoria 3800 , Australia
- Infection and Immunity Program and the Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute , Monash University , Clayton , Victoria 3800 , Australia
| | - Hannah G Kelly
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, and ARC Centre of Excellence in Convergent BioNano Science and Technology , The University of Melbourne , Melbourne , Victoria 3010 , Australia
| | - Madhu Shankar
- Infection and Immunity Program and the Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute , Monash University , Clayton , Victoria 3800 , Australia
| | - Kye J Robinson
- Department of Chemical Engineering and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology , Monash University , Clayton , Victoria 3800 , Australia
| | - Stephen J Kent
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, and ARC Centre of Excellence in Convergent BioNano Science and Technology , The University of Melbourne , Melbourne , Victoria 3010 , Australia
| | - Ana Traven
- Infection and Immunity Program and the Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute , Monash University , Clayton , Victoria 3800 , Australia
| | - Simon R Corrie
- Department of Chemical Engineering and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology , Monash University , Clayton , Victoria 3800 , Australia
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21
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Shafi AS, McClements J, Albaijan I, Abou-Saleh RH, Moran C, Koutsos V. Probing phospholipid microbubbles by atomic force microscopy to quantify bubble mechanics and nanostructural shell properties. Colloids Surf B Biointerfaces 2019; 181:506-515. [DOI: 10.1016/j.colsurfb.2019.04.062] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 04/05/2019] [Accepted: 04/29/2019] [Indexed: 12/17/2022]
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22
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Anchoring Property of a Novel Hydrophilic Lipopolymer, HDAS-SHP, Post-Inserted in Preformed Liposomes. NANOMATERIALS 2019; 9:nano9091185. [PMID: 31438526 PMCID: PMC6780652 DOI: 10.3390/nano9091185] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 07/30/2019] [Accepted: 08/16/2019] [Indexed: 11/17/2022]
Abstract
Polyethylene glycol (PEG)-phospholipids in long-circulating liposomes cause non-specific immune reactions; mainly attributable to negatively-charged phosphoryl s at the interface of PEG and phospholipid. We investigated a novel lipopolymer, by which a superhydrophilic polymer (SHP) is conjugated to a non-phospholipid N1-(2-aminoethyl)-N4-hexadecyl-2-tetradecylsuccinamide (HDAS). The modification of preformed liposomes HDAS-SHP, HDAS-PEG2000, and DSPE-PEG2000 were performed by post-insertion techniques. The efficiency of post-insertion and desorption rates, from the liposome surface, were determined. HDAS-SHP micelles showed highly positive zeta potential (+28.4 mV); zeta potentials of DSPE-PEG2000 and HDAS-PEG2000 micelles were −34.4 mV, and −3.7 mV, respectively. Critical micelle concentration predicted amphiphilicity of HDAS-SHP (CMC 2.58 µM) as close to that of DSPE-PEG2000 (CMC 2.44 µM). Both HDAS-SHP and HDAS-PEG2000 post-inserted with comparable efficiency (79%, and 73%, respectively), but noticeably lower than DSPE-PEG2000 (90%). The desorption rate of HDAS-SHP was close to that of DSPE-PEG2000 (0.53%/h, and 0.45%/h, respectively); the desorption rate for HDAS-PEG2000 was slightly more at 0.67%/h. Compared to plain liposomes, both HDAS-SHP- and DSPE-PEG2000-liposomes showed significant leakage of encapsulated Na-fluorescein isothiocyanate (FITC) upon incubation with serum. At the same time, both modified liposomes were found to suppress serum levels of the complement proteins, Bb and C4d. We infer that HDAS-SHP is a viable alternative to commonly-used PEG-phospholipid derivatives for stealth purposes.
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23
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Yari H, Nkepang G, Awasthi V. Surface Modification of Liposomes by a Lipopolymer Targeting Prostate Specific Membrane Antigen for Theranostic Delivery in Prostate Cancer. MATERIALS 2019; 12:ma12050756. [PMID: 30841602 PMCID: PMC6427334 DOI: 10.3390/ma12050756] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 02/25/2019] [Accepted: 02/27/2019] [Indexed: 01/16/2023]
Abstract
Prostate specific membrane antigen (PSMA) is a marker for diagnosis and targeted delivery of therapeutics to advanced/metastasized prostate cancer. We report a liposome-based system for theranostic delivery to PSMA-expressing (PSMA+) LNCaP cells. A lipopolymer (P3) comprising of PSMA ligand (PSMAL), polyethylene glycol (PEG2000), and palmitate was synthesized and post-inserted into the surface of preformed liposomes. These P3-liposomes were loaded with doxorubicin and radiolabeled with 99mTc radionuclide to study their theranostic characteristics. Differential expression of PSMA on LNCaP and PC3 cells was confirmed by immunoblotting as well as by uptake of PSMAL labeled with 18F radionuclide. We found that the uptake of 99mTc-labeled P3-liposomes by LNCaP cells was >3-fold higher than 99mTc-labeled Plain-liposomes; the amount of doxorubicin delivered to LNCaP cells was also found to be >3-fold higher by P3-liposomes. Cell-based cytotoxicity assay results showed that doxorubicin-loaded P3-liposomes were significantly more toxic to LNCaP cells (p < 0.05), but not to PSMA-negative PC3 cells. Compared to doxorubicin-loaded Plain-liposomes, the IC50 value of doxorubicin-loaded P3-liposomes was reduced by ~5-fold in LNCaP cells. Together, these results suggest that surface functionalization of liposomes with small PSMA-binding motifs, such as PSMAL, can provide a viable platform for specific delivery of theranostics to PSMA+ prostate cancer.
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Affiliation(s)
- Hooman Yari
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Oklahoma Health Sciences Center, 1110 North Stonewall Avenue, Oklahoma City, OK 73117, USA.
| | - Gregory Nkepang
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Oklahoma Health Sciences Center, 1110 North Stonewall Avenue, Oklahoma City, OK 73117, USA.
| | - Vibhudutta Awasthi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Oklahoma Health Sciences Center, 1110 North Stonewall Avenue, Oklahoma City, OK 73117, USA.
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24
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Mahendra A, James HP, Jadhav S. PEG-grafted phospholipids in vesicles: Effect of PEG chain length and concentration on mechanical properties. Chem Phys Lipids 2019; 218:47-56. [DOI: 10.1016/j.chemphyslip.2018.12.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 11/10/2018] [Accepted: 12/01/2018] [Indexed: 10/27/2022]
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25
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The effect of DSPE-PEG2000, cholesterol and drug incorporated in bilayer on the formation of discoidal micelles. Eur J Pharm Sci 2018; 125:74-85. [DOI: 10.1016/j.ejps.2018.09.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 09/06/2018] [Accepted: 09/15/2018] [Indexed: 12/17/2022]
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26
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Rational design of liposomes for sustained release drug delivery of bevacizumab to treat ocular angiogenesis. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.07.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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27
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Malvezzi M, Andra KK, Pandey K, Lee BC, Falzone ME, Brown A, Iqbal R, Menon AK, Accardi A. Out-of-the-groove transport of lipids by TMEM16 and GPCR scramblases. Proc Natl Acad Sci U S A 2018; 115:E7033-E7042. [PMID: 29925604 PMCID: PMC6065010 DOI: 10.1073/pnas.1806721115] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Phospholipid scramblases externalize phosphatidylserine to facilitate numerous physiological processes. Several members of the structurally unrelated TMEM16 and G protein-coupled receptor (GPCR) protein families mediate phospholipid scrambling. The structure of a TMEM16 scramblase shows a membrane-exposed hydrophilic cavity, suggesting that scrambling occurs via the ‟credit-card" mechanism where lipid headgroups permeate through the cavity while their tails remain associated with the membrane core. Here we show that afTMEM16 and opsin, representatives of the TMEM16 and GCPR scramblase families, transport phospholipids with polyethylene glycol headgroups whose globular dimensions are much larger than the width of the cavity. This suggests that transport of these large headgroups occurs outside rather than within the cavity. These large lipids are scrambled at rates comparable to those of normal phospholipids and their presence in the reconstituted vesicles promotes scrambling of normal phospholipids. This suggests that both large and small phospholipids can move outside the cavity. We propose that the conformational rearrangements underlying TMEM16- and GPCR-mediated credit-card scrambling locally deform the membrane to allow transbilayer lipid translocation outside the cavity and that both mechanisms underlie transport of normal phospholipids.
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Affiliation(s)
- Mattia Malvezzi
- Department of Anesthesiology, Weill Cornell Medical College, New York, NY 10065
| | - Kiran K Andra
- Department of Biochemistry, Weill Cornell Medical College, New York, NY 10065
| | - Kalpana Pandey
- Department of Biochemistry, Weill Cornell Medical College, New York, NY 10065
| | - Byoung-Cheol Lee
- Department of Anesthesiology, Weill Cornell Medical College, New York, NY 10065
| | - Maria E Falzone
- Department of Biochemistry, Weill Cornell Medical College, New York, NY 10065
| | - Ashley Brown
- Department of Biochemistry, Weill Cornell Medical College, New York, NY 10065
| | - Rabia Iqbal
- Department of Biochemistry, Weill Cornell Medical College, New York, NY 10065
| | - Anant K Menon
- Department of Biochemistry, Weill Cornell Medical College, New York, NY 10065
| | - Alessio Accardi
- Department of Anesthesiology, Weill Cornell Medical College, New York, NY 10065;
- Department of Biochemistry, Weill Cornell Medical College, New York, NY 10065
- Department of Physiology and Biophysics, Weill Cornell Medical College, New York, NY 10065
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28
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Huckaby JT, Lai SK. PEGylation for enhancing nanoparticle diffusion in mucus. Adv Drug Deliv Rev 2018; 124:125-139. [PMID: 28882703 DOI: 10.1016/j.addr.2017.08.010] [Citation(s) in RCA: 230] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Revised: 08/29/2017] [Accepted: 08/30/2017] [Indexed: 02/07/2023]
Abstract
The viscoelastic mucus secretions coating exposed organs such as the lung airways and the female reproductive tract can trap and quickly eliminate not only foreign pathogens and ultrafine particles but also particle-based drug delivery systems, thus limiting sustained and targeted drug delivery at mucosal surfaces. To improve particle distribution across the mucosa and enhance delivery to the underlying epithelium, many investigators have sought to develop nanoparticles capable of readily traversing mucus. The first synthetic nanoparticles shown capable of rapidly penetrating physiological mucus secretions utilized a dense coating of polyethylene glycol (PEG) covalently grafted onto the surface of preformed polymeric nanoparticles. In the decade since, PEG has become the gold standard in engineering mucus-penetrating drug carriers for sustained and targeted drug delivery to the lungs, gastrointestinal tract, eyes, and female reproductive tract. This review summarizes the history of the development of various PEG-based mucus-penetrating particles, and highlights the key physicochemical properties of PEG coatings and PEGylation strategies to achieve muco-inert PEG coatings on nanoparticle drug carriers for improved drug and gene delivery at mucosal surfaces.
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29
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Solid Lipid Nanoparticles of Albendazole for Enhancing Cellular Uptake and Cytotoxicity against U-87 MG Glioma Cell Lines. Molecules 2017; 22:molecules22112040. [PMID: 29165384 PMCID: PMC6150363 DOI: 10.3390/molecules22112040] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 11/14/2017] [Accepted: 11/21/2017] [Indexed: 11/17/2022] Open
Abstract
Albendazole (ABZ) is an antihelminthic drug used for the treatment of several parasitic infestations. In addition to this, there are reports on the anticancer activity of ABZ against a wide range of cancer types. However, its effect on glioma has not yet been reported. In the present study, cytotoxicity of ABZ and ABZ loaded solid lipid nanoparticles (ASLNs) was tested in human glioma/astrocytoma cell line (U-87 MG). Using glyceryl trimyristate as lipid carrier and tween 80 as surfactant spherical ASLNs with an average size of 218.4 ± 5.1 nm were prepared by a combination of high shear homogenization and probe sonication methods. A biphasic in vitro release pattern of ABZ from ASLNs was observed, where 82% of ABZ was released in 24 h. In vitro cell line studies have shown that ABZ in the form of ASLNs was more cytotoxic (IC50 = 4.90 µg/mL) to U-87 MG cells compared to ABZ in the free form (IC50 = 13.30 µg/mL) due to the efficient uptake of the former by these cells.
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Dendrimer-doxorubicin conjugates exhibit improved anticancer activity and reduce doxorubicin-induced cardiotoxicity in a murine hepatocellular carcinoma model. PLoS One 2017; 12:e0181944. [PMID: 28829785 PMCID: PMC5567696 DOI: 10.1371/journal.pone.0181944] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 07/10/2017] [Indexed: 02/08/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the 2nd leading cause of cancer-related deaths every year globally. The most common form of treatment, hepatic arterial infusion (HAI), involves the direct injection of doxorubicin (DOX) into the hepatic artery. It is plagued with limited therapeutic efficacy and the occurrence of severe toxicities (e.g. cardiotoxicity). We aim to improve the therapeutic index of DOX delivered via HAI by loading the drug onto generation 5 (G5) poly(amidoamine) (PAMAM) dendrimers targeted to hepatic cancer cells via N-acetylgalactosamine (NAcGal) ligands. DOX is attached to the surface of G5 molecules via two different enzyme-sensitive linkages, L3 or L4, to achieve controllable drug release inside hepatic cancer cells. We previously reported on P1 and P2 particles that resulted from the combination of NAcGal-targeting with L3- or L4-DOX linkages, respectively, and showed controllable DOX release and toxicity towards hepatic cancer cells comparable to free DOX. In this study, we demonstrate that while the intratumoral delivery of free DOX (1 mg/kg) into HCC-bearing nod scid gamma (NSG) mice achieves a 2.5-fold inhibition of tumor growth compared to the saline group over 30 days, P1 and P2 particles delivered at the same DOX dosage achieve a 5.1- and 4.4-fold inhibition, respectively. Incubation of the particles with human induced pluripotent stem cell derived cardiomyocytes (hiPSC CMs) showed no effect on monolayer viability, apoptosis induction, or CM electrophysiology, contrary to the effect of free DOX. Moreover, magnetic resonance imaging revealed that P1- and P2-treated mice maintained cardiac function after intraperitoneal administration of DOX at 1 mg/kg for 21 days, unlike the free DOX group at an equivalent dosage, confirming that P1/P2 can avoid DOX-induced cardiotoxicity. Taken together, these results highlight the ability of P1/P2 particles to improve the therapeutic index of DOX and offer a replacement therapy for clinical HCC treatment.
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Papi M, Caputo D, Palmieri V, Coppola R, Palchetti S, Bugli F, Martini C, Digiacomo L, Pozzi D, Caracciolo G. Clinically approved PEGylated nanoparticles are covered by a protein corona that boosts the uptake by cancer cells. NANOSCALE 2017; 9:10327-10334. [PMID: 28702661 DOI: 10.1039/c7nr03042h] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Today, liposomes are an advanced technology of drug carriers with a dozen drugs in clinical practice and many more in clinical trials. A bottleneck associated with the clinical translation of liposomes has long been 'opsonization', i.e. the adsorption of plasma proteins at the liposome surface resulting in their rapid clearance from circulation. For decades, the most popular way to avoid opsonization has been grafting polyethylene glycol (PEG) onto the liposome surface. Recent studies have clarified that grafting PEG onto the liposome surface reduces, but does not completely prevent protein binding. In this work, we employed dynamic light scattering, zeta-potential analysis, one-dimensional sodium dodecyl sulfate polyacrylamide gel electrophoresis (1D-SDS-PAGE), semi-quantitative densitometry and cell imaging to explore the bio-nano-interactions between human plasma (HP) and Onivyde, a PEGylated liposomal drug that has recently been approved by the Food and Drug Administration (FDA) for the treatment of metastatic pancreatic ductal adenocarcinoma (PDAC). To properly evaluate the role of PEGylation, an unPEGylated variant of Onivyde was used as a reference. Collectively, our findings suggest that: (i) although PEGylated, Onivyde is not "stealth" in HP; (ii) surface chemistry is more important than PEGylation in controlling the bio-nano-interactions between Onivyde and plasma components. Of note is that the PC was found to boost the cellular uptake of Onivyde in the pancreas ductal adenocarcinoma cell line (PANC-1) thus suggesting its prominent role in its indication for PDAC treatment. Relevant implications for drug delivery and drug design are discussed.
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Affiliation(s)
- M Papi
- Istituto di Fisica, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy
| | - D Caputo
- University Campus Bio-Medico di Roma, Via Alvaro del Portillo 200, 00128 Rome, Italy
| | - V Palmieri
- Istituto di Fisica, Università Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy
| | - R Coppola
- University Campus Bio-Medico di Roma, Via Alvaro del Portillo 200, 00128 Rome, Italy
| | - S Palchetti
- Department of Molecular Medicine, "Sapienza" University of Rome, Viale Regina Elena 291, 00161 Rome, Italy. and Istituti Fisioterapici Ospitalieri, Istituto Regina Elena, Via Elio Chianesi 53, 00144 Rome, Italy
| | - F Bugli
- Istituto di Microbiologia, Universitá Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy
| | - C Martini
- Istituto di Microbiologia, Universitá Cattolica del Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy
| | - L Digiacomo
- Department of Molecular Medicine, "Sapienza" University of Rome, Viale Regina Elena 291, 00161 Rome, Italy. and Department of Bioscience and Biotechnology, University of Camerino, Via Gentile III da Varano, 62032 Camerino, MC, Italy
| | - D Pozzi
- Department of Molecular Medicine, "Sapienza" University of Rome, Viale Regina Elena 291, 00161 Rome, Italy. and Istituti Fisioterapici Ospitalieri, Istituto Regina Elena, Via Elio Chianesi 53, 00144 Rome, Italy
| | - G Caracciolo
- Department of Molecular Medicine, "Sapienza" University of Rome, Viale Regina Elena 291, 00161 Rome, Italy.
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Khan AU, Scruggs C, Hicks D, Liu G. Two-Dimensional Plasmonic Nanoparticle as a Nanoscale Sensor to Probe Polymer Brush Formation. Anal Chem 2017. [PMID: 28629218 DOI: 10.1021/acs.analchem.7b01361] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Assad U. Khan
- Department
of Chemistry, ‡Materials Science and Engineering, and §Macromolecules Innovation Institute, Virginia Tech, 800 West Campus Drive, Blacksburg, Virginia 24061, United States
| | - Clayton Scruggs
- Department
of Chemistry, ‡Materials Science and Engineering, and §Macromolecules Innovation Institute, Virginia Tech, 800 West Campus Drive, Blacksburg, Virginia 24061, United States
| | - David Hicks
- Department
of Chemistry, ‡Materials Science and Engineering, and §Macromolecules Innovation Institute, Virginia Tech, 800 West Campus Drive, Blacksburg, Virginia 24061, United States
| | - Guoliang Liu
- Department
of Chemistry, ‡Materials Science and Engineering, and §Macromolecules Innovation Institute, Virginia Tech, 800 West Campus Drive, Blacksburg, Virginia 24061, United States
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Kuruvilla SP, Tiruchinapally G, ElAzzouny M, ElSayed MEH. N-Acetylgalactosamine-Targeted Delivery of Dendrimer-Doxorubicin Conjugates Influences Doxorubicin Cytotoxicity and Metabolic Profile in Hepatic Cancer Cells. Adv Healthc Mater 2017; 6. [PMID: 28085993 DOI: 10.1002/adhm.201601046] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 11/25/2016] [Indexed: 12/28/2022]
Abstract
This study describes the development of targeted, doxorubicin (DOX)-loaded generation 5 (G5) polyamidoamine dendrimers able to achieve cell-specific DOX delivery and release into the cytoplasm of hepatic cancer cells. G5 is functionalized with poly(ethylene glycol) (PEG) brushes displaying N-acetylgalactosamine (NAcGal) ligands to target hepatic cancer cells. DOX is attached to G5 through one of two aromatic azo-linkages, L3 or L4, achieving either P1 ((NAcGalβ -PEGc)16.6 -G5-(L3-DOX)11.6 ) or P2 ((NAcGalβ -PEGc)16.6 -G5-(L4-DOX)13.4 ) conjugates. After confirming the conjugates' biocompatibility, flow cytometry studies show P1/P2 achieve 100% uptake into hepatic cancer cells at 30-60 × 10-9 m particle concentration. This internalization correlates with cytotoxicity against HepG2 cells with 50% inhibitory concentration (IC50 ) values of 24.8, 1414.0, and 237.8 × 10-9 m for free DOX, P1, and P2, respectively. Differences in cytotoxicity prompted metabolomics analysis to identify the intracellular release behavior of DOX. Results show that P1/P2 release alternative DOX metabolites than free DOX. Stable isotope tracer studies show that the different metabolites induce different effects on metabolic cycles. Namely, free DOX reduces glycolysis and increases fatty acid oxidation, while P1/P2 increase glycolysis, likely as a response to high oxidative stress. Overall, P1/P2 conjugates offer a platform drug delivery technology for improving hepatic cancer therapy.
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Affiliation(s)
- Sibu P. Kuruvilla
- Department of Materials Science and Engineering University of Michigan 2300 Hayward St. Ann Arbor MI 48109 USA
| | - Gopinath Tiruchinapally
- Department of Biomedical Engineering University of Michigan 1101 Beal Avenue Ann Arbor MI 48109 USA
| | - Mahmoud ElAzzouny
- Department of Internal Medicine University of Michigan Medical School 1500 East Medical Center Drive Ann Arbor MI 48109 USA
| | - Mohamed E. H. ElSayed
- Department of Biomedical Engineering University of Michigan 1101 Beal Avenue Ann Arbor MI 48109 USA
- Department of Macromolecular Science and Engineering University of Michigan 2300 Hayward Avenue Ann Arbor MI 48109 USA
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Åslund AKO, Sulheim E, Snipstad S, von Haartman E, Baghirov H, Starr N, Kvåle Løvmo M, Lelú S, Scurr D, Davies CDL, Schmid R, Mørch Ý. Quantification and Qualitative Effects of Different PEGylations on Poly(butyl cyanoacrylate) Nanoparticles. Mol Pharm 2017; 14:2560-2569. [DOI: 10.1021/acs.molpharmaceut.6b01085] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Andreas K. O. Åslund
- Department
of Physics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Einar Sulheim
- Department
of Physics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
- SINTEF Materials and Chemistry, Trondheim, Norway
| | - Sofie Snipstad
- Department
of Physics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Eva von Haartman
- Pharmaceutical
Sciences Laboratory, Åbo Akademi University, Turku, Finland
| | - Habib Baghirov
- Department
of Physics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Nichola Starr
- School
of Pharmacy, The University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Mia Kvåle Løvmo
- Department
of Physics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Sylvie Lelú
- Department
of Physics, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - David Scurr
- School
of Pharmacy, The University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | | | - Ruth Schmid
- SINTEF Materials and Chemistry, Trondheim, Norway
| | - Ýrr Mørch
- SINTEF Materials and Chemistry, Trondheim, Norway
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Oroskar P, Jameson CJ, Murad S. Molecular dynamics simulations reveal how characteristics of surface and permeant affect permeation events at the surface of soft matter. MOLECULAR SIMULATION 2017. [DOI: 10.1080/08927022.2016.1268259] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Priyanka Oroskar
- Department of Chemical Engineering, University of Illinois at Chicago, Chicago, IL, USA
| | - Cynthia J. Jameson
- Department of Chemistry, University of Illinois at Chicago, Chicago, IL, USA
| | - Sohail Murad
- Department of Chemical Engineering, Illinois Institute of Technology, Chicago, IL, USA
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36
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Liposomal drug delivery systems for targeted cancer therapy: is active targeting the best choice? Future Med Chem 2016; 8:2091-2112. [PMID: 27774793 DOI: 10.4155/fmc-2016-0135] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Liposomes are biodegradable and biocompatible self-forming spherical lipid bilayer vesicles. They can encapsulate and deliver one or more hydrophobic and hydrophilic therapeutic agents with poor therapeutic indices to tumor sites. Properties such as lipid bilayer fluidity, charge, size and surface hydration can be modified to extend liposome circulation time in the bloodstream and enhance efficacy. The focus of this review is on ligand-conjugated liposomes and their potential application in tumor-targeted delivery. Ligand-conjugated liposomes are designed to target receptors which are overexpressed on tumor cells to decrease drugs side effects by enhancing their selective delivery to tumor site. Despite the extensive research in this area, no small molecule ligand-conjugated liposome has been approved up to date for cancer therapy.
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Bunker A, Magarkar A, Viitala T. Rational design of liposomal drug delivery systems, a review: Combined experimental and computational studies of lipid membranes, liposomes and their PEGylation. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2016; 1858:2334-2352. [DOI: 10.1016/j.bbamem.2016.02.025] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 02/09/2016] [Accepted: 02/10/2016] [Indexed: 01/22/2023]
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da Cunha CRA, da Silva LCN, Almeida FJF, Ferraz MS, Varejão N, Cartaxo MFDS, de Miranda RDCM, de Aguiar FCA, Santos NPDS, Coelho LCBB, Santos-Magalhães NS, Correia MTDS. Encapsulation into Stealth Liposomes Enhances the Antitumor Action of Recombinant Cratylia mollis Lectin Expressed in Escherichia coli. Front Microbiol 2016; 7:1355. [PMID: 27695439 PMCID: PMC5026010 DOI: 10.3389/fmicb.2016.01355] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 08/16/2016] [Indexed: 11/13/2022] Open
Abstract
This study evaluated the in vivo antitumor potential of the recombinant lectin from seeds of Cratylia mollis (rCramoll) expressed in Escherichia coli, free or encapsulated in stealth liposomes, using mice transplanted with sarcoma 180. rCramoll-loaded stealth liposomes (rCramoll-lipo) were formulated by hydration of the lipid film followed by cycles of freezing and thawing, and about 60% of rCramoll was encapsulated. This novel preparation showed particle size, polydispersity index, and pH suitable for the evaluation of antitumor activity in vivo. Tumor growth inhibition rates were 59% for rCramoll and 75% for rCramoll-lipo. Histopathological analysis of the experimental groups showed that both free and encapsulated lectin caused no changes in the kidneys of animals. Hematological analysis revealed that treatment with rCramoll-lipo significantly increased leukocyte concentration when compared with the untreated and rCramoll group. In conclusion, the encapsulation of rCramoll in stealth liposomes improves its antitumor activity without substantial toxicity; this approach was more successful than the previous results reported for pCramoll loaded into conventional liposomes. At this point, a crucial difference between the antitumor action of free and encapsulated rCramoll was found along with their effects on immune cells. Further investigations are required to elucidate the mechanism(s) of the antitumor effect induced by rCramoll.
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Affiliation(s)
- Cássia R. A. da Cunha
- Laboratório de Bioquímica de Proteínas, Departamento de Bioquímica, Universidade Federal de PernambucoRecife, Brazil
| | - Luís C. N. da Silva
- Laboratório de Bioquímica de Proteínas, Departamento de Bioquímica, Universidade Federal de PernambucoRecife, Brazil
- Programa de Pós-Graduação em Biologia Parasitária, Universidade CeumaSão Luís, Brazil
| | - Fábio J. F. Almeida
- Laboratório de Imunopatologia Keizo-Asami, Universidade Federal de PernambucoRecife, Brazil
| | - Milena S. Ferraz
- Laboratório de Imunopatologia Keizo-Asami, Universidade Federal de PernambucoRecife, Brazil
| | - Nathalia Varejão
- Laboratório de Agregação de Proteínas e Amiloidoses, Instituto de Bioquímica Médica, Universidade Federal do Rio de JaneiroRio de Janeiro, Brazil
| | | | | | | | | | - Luana C. B. B. Coelho
- Laboratório de Bioquímica de Proteínas, Departamento de Bioquímica, Universidade Federal de PernambucoRecife, Brazil
| | | | - Maria T. dos Santos Correia
- Laboratório de Bioquímica de Proteínas, Departamento de Bioquímica, Universidade Federal de PernambucoRecife, Brazil
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Oroskar PA, Jameson CJ, Murad S. Simulated Permeation and Characterization of PEGylated Gold Nanoparticles in a Lipid Bilayer System. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:7541-7555. [PMID: 27399834 DOI: 10.1021/acs.langmuir.6b01740] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
PEGylated gold nanoparticles are considered suitable nanocarriers for use in biomedical applications and targeted drug delivery systems. In our previous investigation with the alkanethiol-functionalized gold nanoparticle, we found that permeation across a protein-free phospholipid membrane resulted in damaging effects of lipid displacement and water and ion leakage. In the present study, we carry out a series of coarse-grained molecular simulations to explore permeation of lipid bilayer systems by a PEGylated gold nanoparticle, especially at the bulk-liquid-lipid interface as well as the interface between the two lipid leaflets. Initially, we examine molecular-level details of a PEGylated gold nanoparticle (constructed from cycled annealing) in water and find a distribution of ligand configurations (from mushroom to brush states) present in nanoparticles with medium to high surface coverage. We also find that the characteristic properties of the PEGylated gold nanoparticle do not change when it is placed in a salt solution. In our permeation studies, we investigate events of water and ion penetration as well as lipid translocation while varying the ligand length, nanoparticle surface coverage, and ion concentration gradient of our system. Results from our studies show the following: (1) The number of water molecules in the interior of the membrane during ligand-coated nanoparticle permeation increases with PEGn-SH surface coverage, ligand length, and permeation velocity but is not sensitive to the ion concentration gradient. (2) Lipid molecules do not leave the membrane; instead they complete trans-bilayer lipid flip-flop with longer ligands and higher surface coverages. (3) The lack of formation of stable water pores prevents ion translocation. (4) The PEGylated nanoparticle causes less damage to the membrane overall due to favorable interactions with the lipid headgroups which may explain why experimentalists observe endocytosis of PEGylated nanocarriers in vivo.
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Affiliation(s)
- Priyanka A Oroskar
- Department of Chemical Engineering, University of Illinois at Chicago , 810 South Clinton Street, Chicago, Illinois 60607, United States
| | - Cynthia J Jameson
- Department of Chemical Engineering, University of Illinois at Chicago , 810 South Clinton Street, Chicago, Illinois 60607, United States
- Department of Chemistry, University of Illinois at Chicago , 845 West Taylor Street, Chicago, Illinois 60607, United States
| | - Sohail Murad
- Department of Chemical Engineering, University of Illinois at Chicago , 810 South Clinton Street, Chicago, Illinois 60607, United States
- Department of Chemical and Biological Engineering, Illinois Institute of Technology , 3300 South Federal Street, Chicago, Illinois 60616, United States
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Yingchoncharoen P, Kalinowski DS, Richardson DR. Lipid-Based Drug Delivery Systems in Cancer Therapy: What Is Available and What Is Yet to Come. Pharmacol Rev 2016; 68:701-87. [PMID: 27363439 PMCID: PMC4931871 DOI: 10.1124/pr.115.012070] [Citation(s) in RCA: 422] [Impact Index Per Article: 52.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Cancer is a leading cause of death in many countries around the world. However, the efficacy of current standard treatments for a variety of cancers is suboptimal. First, most cancer treatments lack specificity, meaning that these treatments affect both cancer cells and their normal counterparts. Second, many anticancer agents are highly toxic, and thus, limit their use in treatment. Third, a number of cytotoxic chemotherapeutics are highly hydrophobic, which limits their utility in cancer therapy. Finally, many chemotherapeutic agents exhibit short half-lives that curtail their efficacy. As a result of these deficiencies, many current treatments lead to side effects, noncompliance, and patient inconvenience due to difficulties in administration. However, the application of nanotechnology has led to the development of effective nanosized drug delivery systems known commonly as nanoparticles. Among these delivery systems, lipid-based nanoparticles, particularly liposomes, have shown to be quite effective at exhibiting the ability to: 1) improve the selectivity of cancer chemotherapeutic agents; 2) lower the cytotoxicity of anticancer drugs to normal tissues, and thus, reduce their toxic side effects; 3) increase the solubility of hydrophobic drugs; and 4) offer a prolonged and controlled release of agents. This review will discuss the current state of lipid-based nanoparticle research, including the development of liposomes for cancer therapy, different strategies for tumor targeting, liposomal formulation of various anticancer drugs that are commercially available, recent progress in liposome technology for the treatment of cancer, and the next generation of lipid-based nanoparticles.
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Affiliation(s)
- Phatsapong Yingchoncharoen
- Molecular Pharmacology and Pathology Program, Department of Pathology, Faculty of Medicine, Bosch Institute, The University of Sydney, Sydney, NSW, Australia
| | - Danuta S Kalinowski
- Molecular Pharmacology and Pathology Program, Department of Pathology, Faculty of Medicine, Bosch Institute, The University of Sydney, Sydney, NSW, Australia
| | - Des R Richardson
- Molecular Pharmacology and Pathology Program, Department of Pathology, Faculty of Medicine, Bosch Institute, The University of Sydney, Sydney, NSW, Australia
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41
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Harnessing steric hindrance to control interfacial adsorption of patchy nanoparticles onto hairy vesicles. Colloids Surf B Biointerfaces 2016; 141:458-466. [DOI: 10.1016/j.colsurfb.2016.01.061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Revised: 01/25/2016] [Accepted: 01/31/2016] [Indexed: 11/22/2022]
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42
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Licciardi M, Paolino D, Mauro N, Cosco D, Giammona G, Fresta M, Cavallaro G, Celia C. Cationic Supramolecular Vesicular Aggregates for Pulmonary Tissue Selective Delivery in Anticancer Therapy. ChemMedChem 2016; 11:1734-44. [PMID: 27273893 DOI: 10.1002/cmdc.201600070] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Indexed: 12/22/2022]
Abstract
The biopharmaceutical properties of supramolecular vesicular aggregates (SVAs) were characterized with regard to their physicochemical features and compared with cationic liposomes (CLs). Neutral and cationic SVAs were synthesized using two different copolymers of poly(aspartyl hydrazide) by thin-layer evaporation and extrusion techniques. Both copolymers were self-assembled in pre-formulated liposomes and formed neutral and cationic SVAs. Gemcitabine hydrochloride (GEM) was used as an anticancer drug and loaded by a pH gradient remote loading procedure, which significantly increased drug loading inside the SVAs. The resulting average size of the SVAs was 100 nm. The anticancer activity of GEM-loaded neutral and cationic SVAs was tested in human alveolar basal epithelial (A549) and colorectal cancer (CaCo-2) cells. GEM-loaded cationic SVAs increased the anticancer activity in A549 and CaCo-2 cells relative to free drug, neutral SVAs, and CLs. In vivo biodistribution in Wistar rats showed that cationic SVAs accumulate at higher concentrations in lung tissue than neutral SVAs and CLs. Cationic SVAs may therefore serve as an innovative future therapy for pulmonary carcinoma.
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Affiliation(s)
- Mariano Licciardi
- Laboratory of Biocompatible Polymers, Biological, Chemical and Pharmaceutical Sciences and Technologies Department (STEBICEF), University of Palermo, Via Archirafi 32, 90123, Palermo, Italy
| | - Donatella Paolino
- Department of Experimental and Clinical Medicine, Building of BioSciences, University of Catanzaro "Magna Graecia", V.le Europa s.n.c., 88100, Germaneto, Italy.,Interregional Research Center for Food Safety & Health (IRCFSH), Building of BioSciences, University of Catanzaro "Magna Graecia", V.le Europa s.n.c., 88100, Germaneto, Italy
| | - Nicolò Mauro
- Laboratory of Biocompatible Polymers, Biological, Chemical and Pharmaceutical Sciences and Technologies Department (STEBICEF), University of Palermo, Via Archirafi 32, 90123, Palermo, Italy
| | - Donato Cosco
- Interregional Research Center for Food Safety & Health (IRCFSH), Building of BioSciences, University of Catanzaro "Magna Graecia", V.le Europa s.n.c., 88100, Germaneto, Italy.,Department of Health Sciences, University of Catanzaro "Magna Graecia", Building of BioSciences, V.le Europa s.n.c., 88100, Germaneto, Italy
| | - Gaetano Giammona
- Laboratory of Biocompatible Polymers, Biological, Chemical and Pharmaceutical Sciences and Technologies Department (STEBICEF), University of Palermo, Via Archirafi 32, 90123, Palermo, Italy.,Mediterranean Center for Human Advanced Biotechnologies (Med-Chab), Viale delle Scienze Ed. 18, 90128, Palermo, Italy
| | - Massimo Fresta
- Interregional Research Center for Food Safety & Health (IRCFSH), Building of BioSciences, University of Catanzaro "Magna Graecia", V.le Europa s.n.c., 88100, Germaneto, Italy.,Department of Health Sciences, University of Catanzaro "Magna Graecia", Building of BioSciences, V.le Europa s.n.c., 88100, Germaneto, Italy
| | - Gennara Cavallaro
- Laboratory of Biocompatible Polymers, Biological, Chemical and Pharmaceutical Sciences and Technologies Department (STEBICEF), University of Palermo, Via Archirafi 32, 90123, Palermo, Italy
| | - Christian Celia
- Department of Pharmacy, University of Chieti - Pescara "G. d'Annunzio", Via dei Vestini 31, 66100, Chieti, Italy. .,Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Avenue, Houston, TX, 77030, USA.
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Mennini N, Mura P, Nativi C, Richichi B, Di Cesare Mannelli L, Ghelardini C. Injectable liposomal formulations of opiorphin as a new therapeutic strategy in pain management. Future Sci OA 2015; 1:FSO2. [PMID: 28031877 PMCID: PMC5137926 DOI: 10.4155/fso.14.3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Conventional and PEGylated liposomes were developed, aimed at improving the pain-killing effect of opiorphin. METHODS The antinociceptive action of the formulations was investigated on rats (tail-flick test), and compared with that of opiorphin and morphine aqueous solutions (all at 5 mg/kg). RESULTS Opiorphin loading in conventional liposomes enabled a 28% AUC increase with respect to free peptide. PEGylated liposomes provided AUC values 80, 60 and 40% higher than free peptide, morphine and opiorphin-loaded conventional liposomes, respectively. Moreover, opiorphin entrapment in PEGylated liposomes increased analgesic effect duration by more than 50%. These results were attributed to the greater effectiveness of PEGylated liposomes in protecting the drug and prolonging its circulation time. CONCLUSION Opiorphin-loaded PEGylated-liposomes can represent a valid alternative to morphine in pain management.
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Affiliation(s)
- Natascia Mennini
- Department of Chemistry, University of Florence, Polo Scientifico Sesto Fiorentino, Sesto Fiorentino (FI), Italy
| | - Paola Mura
- Department of Chemistry, University of Florence, Polo Scientifico Sesto Fiorentino, Sesto Fiorentino (FI), Italy
| | - Cristina Nativi
- Department of Chemistry, University of Florence, Polo Scientifico Sesto Fiorentino, Sesto Fiorentino (FI), Italy
| | - Barbara Richichi
- Department of Chemistry, University of Florence, Polo Scientifico Sesto Fiorentino, Sesto Fiorentino (FI), Italy
| | - Lorenzo Di Cesare Mannelli
- Department of Neurosciences, Psychology, Drug Research & Child Health, University of Florence, Firenze, Italy
| | - Carla Ghelardini
- Department of Neurosciences, Psychology, Drug Research & Child Health, University of Florence, Firenze, Italy
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Bakardzhiev P, Momekova D, Edwards K, Konstantinov S, Rangelov S. Novel polyglycidol-lipid conjugates create a stabilizing hydrogen-bonded layer around cholesterol-containing dipalmitoyl phosphatidylcholine liposomes. J Drug Deliv Sci Technol 2015. [DOI: 10.1016/j.jddst.2015.06.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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45
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Aydin F, Uppaladadium G, Dutt M. Harnessing Nanoscale Confinement to Design Sterically Stable Vesicles of Specific Shapes via Self-Assembly. J Phys Chem B 2015. [DOI: 10.1021/acs.jpcb.5b02239] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fikret Aydin
- Department of Chemical and
Biochemical Engineering, Rutgers The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Geetartha Uppaladadium
- Department of Chemical and
Biochemical Engineering, Rutgers The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Meenakshi Dutt
- Department of Chemical and
Biochemical Engineering, Rutgers The State University of New Jersey, Piscataway, New Jersey 08854, United States
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Momin N, Lee S, Gadok AK, Busch DJ, Bachand GD, Hayden CC, Stachowiak JC, Sasaki DY. Designing lipids for selective partitioning into liquid ordered membrane domains. SOFT MATTER 2015; 11:3241-3250. [PMID: 25772372 DOI: 10.1039/c4sm02856b] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Self-organization of lipid molecules into specific membrane phases is key to the development of hierarchical molecular assemblies that mimic cellular structures. While the packing interaction of the lipid tails should provide the major driving force to direct lipid partitioning to ordered or disordered membrane domains, numerous examples show that the headgroup and spacer play important but undefined roles. We report here the development of several new biotinylated lipids that examine the role of spacer chemistry and structure on membrane phase partitioning. The new lipids were prepared with varying lengths of low molecular weight polyethylene glycol (EGn) spacers to examine how spacer hydrophilicity and length influence their partitioning behavior following binding with FITC-labeled streptavidin in liquid ordered (Lo) and liquid disordered (Ld) phase coexisting membranes. Partitioning coefficients (Kp Lo/Ld) of the biotinylated lipids were determined using fluorescence measurements in studies with giant unilamellar vesicles (GUVs). Compared against DPPE-biotin, DPPE-cap-biotin, and DSPE-PEG2000-biotin lipids, the new dipalmityl-EGn-biotin lipids exhibited markedly enhanced partitioning into liquid ordered domains, achieving Kp of up to 7.3 with a decaethylene glycol spacer (DP-EG10-biotin). We further demonstrated biological relevance of the lipids with selective partitioning to lipid raft-like domains observed in giant plasma membrane vesicles (GPMVs) derived from mammalian cells. Our results found that the spacer group not only plays a pivotal role for designing lipids with phase selectivity but may also influence the structural order of the domain assemblies.
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Affiliation(s)
- Noor Momin
- Sandia National Laboratories, Biotechnology and Bioengineering Dept., Livermore, CA, USA.
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47
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The design of shape-tunable hairy vesicles. Colloids Surf B Biointerfaces 2015; 128:268-275. [DOI: 10.1016/j.colsurfb.2015.01.049] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 01/10/2015] [Accepted: 01/28/2015] [Indexed: 11/20/2022]
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48
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Yu T, Chan KWY, Anonuevo A, Song X, Schuster BS, Chattopadhyay S, Xu Q, Oskolkov N, Patel H, Ensign LM, van Zjil PCM, McMahon MT, Hanes J. Liposome-based mucus-penetrating particles (MPP) for mucosal theranostics: demonstration of diamagnetic chemical exchange saturation transfer (diaCEST) magnetic resonance imaging (MRI). NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2014; 11:401-5. [PMID: 25461289 DOI: 10.1016/j.nano.2014.09.019] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 09/22/2014] [Accepted: 09/30/2014] [Indexed: 02/02/2023]
Abstract
UNLABELLED Mucus barriers lining mucosal epithelia reduce the effectiveness of nanocarrier-based mucosal drug delivery and imaging ("theranostics"). Here, we describe liposome-based mucus-penetrating particles (MPP) capable of loading hydrophilic agents, e.g., the diaCEST MRI contrast agent barbituric acid (BA). We observed that polyethylene glycol (PEG)-coated liposomes containing ≥7 mol% PEG diffused only ~10-fold slower in human cervicovaginal mucus (CVM) compared to their theoretical speeds in water. 7 mol%-PEG liposomes contained sufficient BA loading for diaCEST contrast, and provided improved vaginal distribution compared to 0 and 3mol%-PEG liposomes. However, increasing PEG content to ~12 mol% compromised BA loading and vaginal distribution, suggesting that PEG content must be optimized to maintain drug loading and stability. Non-invasive diaCEST MRI illustrated uniform vaginal coverage and longer retention of BA-loaded 7 mol%-PEG liposomes compared to unencapsulated BA. Liposomal MPP with optimized PEG content hold promise for drug delivery and imaging at mucosal surfaces. FROM THE CLINICAL EDITOR This team of authors characterized liposome-based mucus-penetrating particles (MPP) capable of loading hydrophilic agents, such as barbituric acid (a diaCEST MRI contrast agent) and concluded that liposomal MPP with optimized PEG coating enables drug delivery and imaging at mucosal surfaces.
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Affiliation(s)
- Tao Yu
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Center for Nanomedicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Kannie W Y Chan
- Russell H. Morgan Department of Radiology and Radiological Sciences, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, USA; F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, USA; Center for Nanomedicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Abraham Anonuevo
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, USA; Center for Nanomedicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Xiaolei Song
- Russell H. Morgan Department of Radiology and Radiological Sciences, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, USA; F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, USA
| | - Benjamin S Schuster
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Center for Nanomedicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Sumon Chattopadhyay
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, USA; Center for Nanomedicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Qingguo Xu
- Department of Ophthalmology, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Center for Nanomedicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Nikita Oskolkov
- Russell H. Morgan Department of Radiology and Radiological Sciences, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, USA; F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, USA
| | - Himatkumar Patel
- Department of Ophthalmology, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Center for Nanomedicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Laura M Ensign
- Department of Ophthalmology, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Center for Nanomedicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Peter C M van Zjil
- Russell H. Morgan Department of Radiology and Radiological Sciences, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, USA; F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, USA
| | - Michael T McMahon
- Russell H. Morgan Department of Radiology and Radiological Sciences, Division of MR Research, The Johns Hopkins University School of Medicine, Baltimore, USA; F.M. Kirby Research Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, USA; Center for Nanomedicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Justin Hanes
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, USA; Department of Ophthalmology, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA; Center for Nanomedicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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Abou-Saleh RH, Swain M, Evans SD, Thomson NH. Poly(ethylene glycol) lipid-shelled microbubbles: abundance, stability, and mechanical properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:5557-63. [PMID: 24758714 DOI: 10.1021/la404804u] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Poly(ethylene glycol) (PEG) is widely used on the outside of biomedical delivery vehicles to impart stealth properties. Encapsulated gas microbubbles (MBs) are being increasingly considered as effective carriers for therapeutic intervention to deliver drug payloads or genetic vectors. MBs have the advantage that they can be imaged and manipulated by ultrasound fields with great potential for targeted therapy and diagnostic purposes. Lipid-shelled MBs are biocompatible and can be functionalized on the outer surface for tissue targeting and new therapeutic methods. As MBs become a key route for drug delivery, exploring the effect of PEG-ylation on the MB properties is important. Here, we systematically investigate the effect of PEG-lipid solution concentration ranging between 0 and 35 mol % on the formation of MBs in a microfluidic flow-focusing device. The abundance of the MBs is correlated with the MB lifetime and the whole MB mechanical response, as measured by AFM compression using a tipless cantilever. The maximal MB concentration and stability (lifetime) occurs at a low concentration of PEG-lipid (∼5 mol %). For higher PEG-lipid concentrations, the lifetime and MB concentration decrease, and are accompanied by a correlation between the predicted surface PEG configuration and the whole MB stiffness, as measured at higher compression loads. These results inform the rationale design and fabrication of lipid-based MBs for therapeutic applications and suggest that only relatively small amounts of PEG incorporation are required for optimizing MB abundance and stability while retaining similar mechanical response at low loads.
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Affiliation(s)
- Radwa H Abou-Saleh
- Molecular and Nanoscale Physics Group, School of Physics and Astronomy, University of Leeds , Leeds LS2 9JT, United Kingdom
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50
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Dey P, Blakey I, Thurecht KJ, Fredericks PM. Hyperbranched polymer-gold nanoparticle assemblies: role of polymer architecture in hybrid assembly formation and SERS activity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:2249-2258. [PMID: 24548062 DOI: 10.1021/la4047462] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Plasmonic gold nanoassemblies that self-assemble with the aid of linking molecules or polymers have the potential to yield controlled hierarchies of morphologies and consequently result in materials with tailored optical (e.g., localized surface plasmon resonances (LSPR)) and spectroscopic properties (e.g., surface-enhanced Raman scattering (SERS)). Molecular linkers that are structurally well-defined are promising for forming hybrid nanoassemblies which are stable in aqueous solution and are increasingly finding application in nanomedicine. Despite much ongoing research in this field, the precise role of molecular linkers in governing the morphology and properties of the hybrid nanoassemblies remains unclear. Previously we have demonstrated that branched linkers, such as hyperbranched polymers, with specific anchoring end groups can be successfully employed to form assemblies of gold NPs demonstrating near-infrared SPRs and intense SERS scattering. We herein introduce a tailored polymer as a versatile molecular linker, capable of manipulating nanoassembly morphologies and hot-spot density. In addition, this report explores the role of the polymeric linker architecture, specifically the degree of branching of the tailored polymer in determining the formation, morphology, and properties of the hybrid nanoassemblies. The degree of branching of the linker polymer, in addition to the concentration and number of anchoring groups, is observed to strongly influence the self-assembly process. The assembly morphology shifts primarily from 1D-like chains to 2D plates and finally to 3D-like globular structures, with increase in degree of branching of the macromolecular linker. Insights have been gained into how the morphology influences the SERS performance of these nanoassemblies with respect to hot-spot density. These findings supplement the understanding of the morphology determining nanoassembly formation and pave the way for the possible application of these nanoassemblies as SERS biosensors for medical diagnostics.
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Affiliation(s)
- Priyanka Dey
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology , Brisbane, Queensland 4001, Australia
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