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Bernert M, Bignoux MJ, Madhav C, Gqeba S, Otgaar TC, Morris G, Weiss SFT, Ferreira E. PLGA nanocapsules as a delivery system for a recombinant LRP-based therapeutic. FEBS Open Bio 2024; 14:1072-1086. [PMID: 38702074 PMCID: PMC11216925 DOI: 10.1002/2211-5463.13809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 02/12/2024] [Accepted: 04/22/2024] [Indexed: 05/06/2024] Open
Abstract
Telomerase activity is directly affected by the laminin receptor precursor (LRP) protein, a highly conserved nonintegrin transmembrane receptor, which has been shown to have therapeutic effects in ageing, and age-related diseases. Recently, it has been found that overexpression of LRP-FLAG, by plasmid transfection, leads to a significant increase in telomerase activity in cell culture models. This may indicate that upregulation of LRP can be used to treat various age-related diseases. However, transfection is not a viable treatment strategy for patients. Therefore, we present a nanoencapsulated protein-based drug synthesised using poly(lactic-co-glycolic acid) (PLGA) nanocapsules for delivery of the 37 kDa LRP protein therapeutic. PLGA nanocapsules were synthesised using the double emulsification-solvent evaporation technique. Different purification methods, including filtration and centrifugation, were tested to ensure that the nanocapsules were within the optimal size range, and the BCA assay was used to determine encapsulation efficiency. The completed drug was tested in a HEK-293 cell culture model, to investigate the effect on cell viability, LRP protein levels and telomerase activity. A significant increase in total LRP protein levels with a concomitant increase in cell viability and telomerase activity was observed. Due to the observed increase in telomerase activity, this approach could represent a safer alternative to plasmid transfection for the treatment of age-related diseases.
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Affiliation(s)
- Martin Bernert
- School of Molecular and Cell BiologyUniversity of the WitwatersrandJohannesburgSouth Africa
| | - Monique J. Bignoux
- School of Molecular and Cell BiologyUniversity of the WitwatersrandJohannesburgSouth Africa
| | - Chandni Madhav
- School of Molecular and Cell BiologyUniversity of the WitwatersrandJohannesburgSouth Africa
| | - Sichumiso Gqeba
- School of Molecular and Cell BiologyUniversity of the WitwatersrandJohannesburgSouth Africa
| | - Tyrone C. Otgaar
- School of Molecular and Cell BiologyUniversity of the WitwatersrandJohannesburgSouth Africa
| | - Gavin Morris
- School of Molecular and Cell BiologyUniversity of the WitwatersrandJohannesburgSouth Africa
| | - Stefan F. T. Weiss
- School of Molecular and Cell BiologyUniversity of the WitwatersrandJohannesburgSouth Africa
| | - Eloise Ferreira
- School of Molecular and Cell BiologyUniversity of the WitwatersrandJohannesburgSouth Africa
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Ranch K, Chawnani D, Jani H, Acharya D, Patel CA, Jacob S, Babu RJ, Tiwari AK, Al-Tabakha MM, Boddu SHS. An update on the latest strategies in retinal drug delivery. Expert Opin Drug Deliv 2024; 21:695-712. [PMID: 38787783 DOI: 10.1080/17425247.2024.2358886] [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: 01/23/2024] [Accepted: 05/20/2024] [Indexed: 05/26/2024]
Abstract
INTRODUCTION Retinal drug delivery has witnessed significant advancements in recent years, mainly driven by the prevalence of retinal diseases and the need for more efficient and patient-friendly treatment strategies. AREAS COVERED Advancements in nanotechnology have introduced novel drug delivery platforms to improve bioavailability and provide controlled/targeted delivery to specific retinal layers. This review highlights various treatment options for retinal diseases. Additionally, diverse strategies aimed at enhancing delivery of small molecules and antibodies to the posterior segment such as implants, polymeric nanoparticles, liposomes, niosomes, microneedles, iontophoresis and mixed micelles were emphasized. A comprehensive overview of the special technologies currently under clinical trials or already in the clinic was provided. EXPERT OPINION Ideally, drug delivery system for treating retinal diseases should be less invasive in nature and exhibit sustained release up to several months. Though topical administration in the form of eye drops offers better patient compliance, its clinical utility is limited by nature of the drug. There is a wide range of delivery platforms available, however, it is not easy to modify any single platform to accommodate all types of drugs. Coordinated efforts between ophthalmologists and drug delivery scientists are necessary while developing therapeutic compounds, right from their inception.
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Affiliation(s)
- Ketan Ranch
- Department of Pharmaceutics, L. M. College of Pharmacy, Ahmedabad, India
| | - Disha Chawnani
- Department of Pharmaceutics, L. M. College of Pharmacy, Ahmedabad, India
| | - Harshilkumar Jani
- Department of Pharmaceutics, L. M. College of Pharmacy, Ahmedabad, India
| | - Devarshi Acharya
- Department of Pharmaceutics, L. M. College of Pharmacy, Ahmedabad, India
| | - Chirag Amrutlal Patel
- Department of Pharmacology & Pharmacy practices, L. M. College of Pharmacy, Ahmedabad, India
| | - Shery Jacob
- Department of Pharmaceutical Sciences, College of Pharmacy, Gulf Medical University, Ajman, United Arab Emirates UAE
| | - R Jayachandra Babu
- Department of Drug Discovery and Development, Harrison College of Pharmacy, Auburn University, Auburn, AL, USA
| | - Amit K Tiwari
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Moawia M Al-Tabakha
- Center of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman, UAE
| | - Sai H S Boddu
- Center of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman, UAE
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3
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Mahmoud SM, Barakat OS, Kotram LE. Stimulation the immune response through ξ potential on core-shell 'calcium oxide/magnetite iron oxides' nanoparticles. Anim Biotechnol 2023; 34:2657-2673. [PMID: 35981058 DOI: 10.1080/10495398.2022.2111310] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
This study investigated the role of ξ Potential on Monometallic (MM) and Bimetallic (BM) Calcium Oxide/Magnetite Iron Oxides nanoparticles to stimulate the immune response. Metallic nanoparticles (MNPs) were biosynthesis using Pseudomonas fluorescens S48. MNPs characterization was carried out by UV-Vis spectra, XRD analysis, Zeta potential and Particles size, SEM-EDS, and TEM, and the concentrations were calculated by ICP-AES. The immune system activity was measured by estimation of lymphocytes transformation, phagocytic activity. The end point was in evaluating the toxicity of Metallic NPs by comet assay. SEM-EDS and TEM micrographs showed that MM CaO and Fe3O4 represent a perfect example of zero-dimensional (0-D) NPs with cubic and spherical particles in shape, while BM CaO/Fe3O4 NPs appeared in the form of Core-shell structure. The variations effect of novelty MM, BM CaO/Fe3O4 NPs in enhancing immune activity were based on the ξ Potential whereas negatively and positively charged. These findings demonstrate that the cationic CaO/Fe3O4 NPs are inefficient in stimulating the immune system which causes a high cytotoxic effect. But the anionic CaO/Fe3O4 NPs have advantages in targeting the immune system because of enhanced delivery to the cells through adsorptive endocytosis as well as the half-life clearance from the blood.
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Affiliation(s)
- Sara Mohamed Mahmoud
- Biotechnology Department, Faculty of Graduate Studies and Environmental Researches, Ain Shams University, Cairo, Egypt
| | - Olfat S Barakat
- Agricultural Microbiology Department, Faculty of Agriculture, Cairo University, Giza, Egypt
| | - Laila E Kotram
- Immunity Department, Animal Reproduction Research Institute (ARRI), Agriculture Research Center (ARC), Giza, Egypt
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4
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Hussain K, Jabbar A, Ali Hasan K, Ali M, Ul-Haq Z, Shah MR, Ahmad Khan S, Rashid MA, Kazi M, Abbas MN. Investigating the self-assembling of nicotinic hydrazide-based amphiphile into nano-range vesicles and its amphotericin B loading applications. Drug Deliv 2023; 30:2174205. [PMID: 36785530 PMCID: PMC9930833 DOI: 10.1080/10717544.2023.2174205] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Abstract
Most of the drugs are hydrophobic and have low water solubility, therefore posing issues in their absorption and bioavailability. Nonionic surfactants improve the solubility of hydrophobic drugs by entrapping them in their lipid bilayers. Two nonionic surfactants NODNH-16 and NODNH-18 are synthesized and characterized using different techniques i.e. EI-MS, 1H NMR, and FTIR. These newly synthesized surfactants were screened for blood hemolysis assay and cell toxicity studies using the NIH/3T3 cell line to assess their biocompatibility. Then amphotericin B was loaded into niosomal vesicles, and the drug entrapment efficiency of these surfactants was measured using UV-visible spectroscopy. The morphology of drug-loaded niosomes of synthesized surfactants was investigated using AFM, and their size, polydispersity, and zeta potential were measured with the Zetasizer instrument. Finally, a simulation study was performed to determine the pattern of self-assembly of the synthesized amphiphiles. Both synthesized nonionic surfactants showed good entrapment efficiency of 60.65 ± 2.12% and 68.45 ± 2.12%, respectively. It was also confirmed that both these synthesized nonionic surfactants were safe and biocompatible and showed less blood hemolysis (i.e. 21.13 ± 2.11% and 23.32 ± 2.45%) and higher 3T3 cells' viability at 150 µg/mL concentration as compared to Tween®-80. The antifungal potential of amphotericin B-loaded niosomes has been evaluated against unicellular multi-fungal species, which showed a promising potential for fungicidal activity. These results are substantiated by constructing a safe vehicle system for drug delivery.
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Affiliation(s)
- Kashif Hussain
- H.E.J. Research Institute of Chemistry, International Centre for Chemical and Biological Sciences, Karachi University, Karachi, Pakistan
| | - Abdul Jabbar
- H.E.J. Research Institute of Chemistry, International Centre for Chemical and Biological Sciences, Karachi University, Karachi, Pakistan
| | - Khwaja Ali Hasan
- Molecular Biology & Structural Biochemistry Research Laboratory, Department of Biochemistry, University of Karachi, Karachi, Pakistan
| | - Muneeb Ali
- H.E.J. Research Institute of Chemistry, International Centre for Chemical and Biological Sciences, Karachi University, Karachi, Pakistan
| | - Zaheer Ul-Haq
- H.E.J. Research Institute of Chemistry, International Centre for Chemical and Biological Sciences, Karachi University, Karachi, Pakistan
| | - Muhammad Raza Shah
- H.E.J. Research Institute of Chemistry, International Centre for Chemical and Biological Sciences, Karachi University, Karachi, Pakistan,CONTACT Muhammad Raza Shah International Center for Chemical and Biological Sciences, H.E.J. Research Institute of Chemistry, University of Karachi, 74200Karachi, Pakistan
| | - Saeed Ahmad Khan
- Department of Pharmacy, Kohat University of Science and Technology, Kohat, Pakistan,Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, Texas, USA
| | - Md Abdur Rashid
- Pharmacy Discipline, Faculty of Health, School of Clinical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia,Department of Pharmaceutics, College of Pharmacy, King Khalid University, Guraiger, Abha, Saudi Arabia,Md Abdur Rashid Department of Pharmaceutics, College of Pharmacy, King Khalid University, Guraiger, Abha62529, Saudi Arabia
| | - Mohsin Kazi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Muhammad Naseer Abbas
- Department of Pharmacy, Kohat University of Science and Technology, Kohat, Khyber Pakhtunkhwa, Pakistan
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Barakat EH, Akl MA, Ibrahim MF, Mohamed Dawaba H, Afouna MI. Formulation and optimization of theophylline-loaded enteric-coated spanlastic nanovesicles for colon delivery; Ameliorate acetic acid-induced ulcerative colitis. Int J Pharm 2023; 643:123253. [PMID: 37473974 DOI: 10.1016/j.ijpharm.2023.123253] [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: 05/10/2023] [Revised: 07/15/2023] [Accepted: 07/17/2023] [Indexed: 07/22/2023]
Abstract
Treatment of colon diseases presents one of the most significant obstacles to drug delivery due to the inability to deliver sufficient drug concentration selectively to the colon. The goal of the proposed study was to develop, optimize, and assess an effective colon target delivery system of theophylline-based nanovesicles (TP-NVs) surrounded by a biodegradable polymeric shell of chitosan (CS) and Eudragit L100 (EL100) for the treatment of ulcerative colitis (UC). TP-loaded nanovesicles were fabricated using the ethanol injection method and coated with CS and EL100, respectively. We used a 32-factorial design approach to optimize the concentration of CS and EL100 to minimize particle size (PS) and maximize the cumulative amount of theophylline released (CTR) after 24 h. The optimized formulation was described using transmission electron microscopy (TEM), differential scanning calorimetry (DSC), and in vitro release. In-vivo quantification of theophylline in the gastrointestinal tract and in-vivo targeting potential in a rat model of acetic acid-induced colitis were also thoroughly evaluated. The characteristics of the optimal formula predicted by the 32-factorial design approach corresponded exceptionally well with the measured PS of 271.3 nm, the zeta potential of -39.9 mV, and CTR of 3.95, and a 99.93% after 5 and 24 h, respectively. Notably, the in vivo results in the rat model of colitis showed that the formulation with an optimized coat significantly improved theophylline distribution to the colon and markedly decreased the expression of interleukin-6 and ulcerative lesions compared to a pure theophylline solution. These outcomes elucidated the feasibility of a 32-factorial design to detect the crucial interactions between the study's components. Our findings suggested that enteric-coated nanovesicles formulations with optimal coat compositions of 0.2693% (w/v) and 0.75% (w/v) of CS and EL100, respectively, were promising carriers for colonic delivery of theophylline, a rate-limiting step in the treatment of UC.
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Affiliation(s)
- Elsaied H Barakat
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Nasr City, Cairo, Egypt
| | - Mohamed A Akl
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Nasr City, Cairo, Egypt; Department of Pharmaceutics, College of Pharmacy, The Islamic University, Najaf 54001, Iraq.
| | - Mohamed F Ibrahim
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Nasr City, Cairo, Egypt
| | - Hamdy Mohamed Dawaba
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Nasr City, Cairo, Egypt; Department of Pharmaceutics, Faculty of Pharmacy, Sinai University-Kantara Branch, Ismailia Governorate, Egypt
| | - Mohsen I Afouna
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Nasr City, Cairo, Egypt.
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3D Printed Scaffold Based on Type I Collagen/PLGA_TGF-β1 Nanoparticles Mimicking the Growth Factor Footprint of Human Bone Tissue. Polymers (Basel) 2022; 14:polym14050857. [PMID: 35267680 PMCID: PMC8912467 DOI: 10.3390/polym14050857] [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: 01/28/2022] [Revised: 02/11/2022] [Accepted: 02/18/2022] [Indexed: 02/05/2023] Open
Abstract
In bone regenerative strategies, the controlled release of growth factors is one of the main aspects for successful tissue regeneration. Recent trends in the drug delivery field increased the interest in the development of biodegradable systems able to protect and transport active agents. In the present study, we designed degradable poly(lactic-co-glycolic)acid (PLGA) nanocarriers suitable for the release of Transforming Growth Factor-beta 1 (TGF-β1), a key molecule in the management of bone cells behaviour. Spherical TGF-β1-containing PLGA (PLGA_TGF-β1) nanoparticles (ca.250 nm) exhibiting high encapsulation efficiency (ca.64%) were successfully synthesized. The TGF-β1 nanocarriers were subsequently combined with type I collagen for the fabrication of nanostructured 3D printed scaffolds able to mimic the TGF-β1 presence in the human bone extracellular matrix (ECM). The homogeneous hybrid formulation underwent a comprehensive rheological characterisation in view of 3D printing. The 3D printed collagen-based scaffolds (10 mm × 10 mm × 1 mm) successfully mimicked the TGF-β1 presence in human bone ECM as assessed by immunohistochemical TGF-β1 staining, covering ca.3.4% of the whole scaffold area. Moreover, the collagenous matrix was able to reduce the initial burst release observed in the first 24 h from about 38% for the PLGA_TGF-β1 alone to 14.5%, proving that the nanocarriers incorporation into collagen allows achieving sustained release kinetics.
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7
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Choudhury SD. Nano-Medicines a Hope for Chagas Disease! Front Mol Biosci 2021; 8:655435. [PMID: 34141721 PMCID: PMC8204082 DOI: 10.3389/fmolb.2021.655435] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 03/29/2021] [Indexed: 12/12/2022] Open
Abstract
Chagas disease, is a vector-mediated tropical disease whose causative agent is a parasitic protozoan named Trypanosoma cruzi. It is a very severe health issue in South America and Mexico infecting millions of people every year. Protozoan T. cruzi gets transmitted to human through Triatominae, a subfamily of the Reduviidae, and do not have any effective treatment or preventative available. The lack of economic gains from this tropical parasitic infection, has always been the reason behind its negligence by researchers and drug manufacturers for many decades. Hence there is an enormous requirement for more efficient and novel strategies to reduce the fatality associated with these diseases. Even, available diagnosis protocols are outdated and inefficient and there is an urgent need for rapid high throughput diagnostics as well as management protocol. The current advancement of nanotechnology in the field of healthcare has generated hope for better management of many tropical diseases including Chagas disease. Nanoparticulate systems for drug delivery like poloxamer coated nanosuspension of benzimidazole have shown promising results in reducing toxicity, elevating efficacy and bioavailability of the active compound against the pathogen, by prolonging release, thereby increasing the therapeutic index. Moreover, nanoparticle-based drug delivery has shown promising results in inducing the host’s immune response against the pathogen with very few side effects. Besides, advances in diagnostic assays, such as nanosensors, aided in the accurate detection of the parasite. In this review, we provide an insight into the life cycle stages of the pathogen in both vertebrate host and the insect vector, along with an overview of the current therapy for Chagas disease and its limitations; nano carrier-based delivery systems for antichagasic agents, we also address the advancement of nano vaccines and nano-diagnostic techniques, for treatment of Chagas disease, majorly focusing on the novel perspectives in combating the disease.
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Renzi DF, de Almeida Campos L, Miranda EH, Mainardes RM, Abraham WR, Grigoletto DF, Khalil NM. Nanoparticles as a Tool for Broadening Antifungal Activities. Curr Med Chem 2021; 28:1841-1873. [PMID: 32223729 DOI: 10.2174/0929867327666200330143338] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 02/28/2020] [Accepted: 03/09/2020] [Indexed: 11/22/2022]
Abstract
Fungal infections are diseases that are considered neglected although their infection rates have increased worldwide in the last decades. Thus, since the antifungal arsenal is restricted and many strains have shown resistance, new therapeutic alternatives are necessary. Nanoparticles are considered important alternatives to promote drug delivery. In this sense, the objective of the present study was to evaluate the contributions of newly developed nanoparticles to the treatment of fungal infections. Studies have shown that nanoparticles generally improve the biopharmaceutical and pharmacokinetic characteristics of antifungals, which is reflected in a greater pharmacodynamic potential and lower toxicity, as well as the possibility of prolonged action. It also offers the proposition of new routes of administration. Nanotechnology is known to contribute to a new drug delivery system, not only for the control of infectious diseases but for various other diseases as well. In recent years, several studies have emphasized its application in infectious diseases, presenting better alternatives for the treatment of fungal infections.
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Affiliation(s)
- Daniele Fernanda Renzi
- Pharmaceutical Nanotechnology Laboratory, Universidade Estadual do Centro-Oeste, Alameda Élio Antonio Dalla Vecchia, 838 - CEP 85040-167, Guarapuava-PR, Brazil
| | - Laís de Almeida Campos
- Pharmaceutical Nanotechnology Laboratory, Universidade Estadual do Centro-Oeste, Alameda Élio Antonio Dalla Vecchia, 838 - CEP 85040-167, Guarapuava-PR, Brazil
| | - Eduardo Hösel Miranda
- Pharmaceutical Nanotechnology Laboratory, Universidade Estadual do Centro-Oeste, Alameda Élio Antonio Dalla Vecchia, 838 - CEP 85040-167, Guarapuava-PR, Brazil
| | - Rubiana Mara Mainardes
- Pharmaceutical Nanotechnology Laboratory, Universidade Estadual do Centro-Oeste, Alameda Élio Antonio Dalla Vecchia, 838 - CEP 85040-167, Guarapuava-PR, Brazil
| | - Wolf-Rainer Abraham
- Helmholtz Center for Infection Research, Chemical Microbiology, Inhoffenstraße 7, 38124 Braunschweig, Germany
| | - Diana Fortkamp Grigoletto
- Pharmaceutical Nanotechnology Laboratory, Universidade Estadual do Centro-Oeste, Alameda Élio Antonio Dalla Vecchia, 838 - CEP 85040-167, Guarapuava-PR, Brazil
| | - Najeh Maissar Khalil
- Pharmaceutical Nanotechnology Laboratory, Universidade Estadual do Centro-Oeste, Alameda Élio Antonio Dalla Vecchia, 838 - CEP 85040-167, Guarapuava-PR, Brazil
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9
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Naidu ECS, Olojede SO, Lawal SK, Rennie CO, Azu OO. Nanoparticle delivery system, highly active antiretroviral therapy, and testicular morphology: The role of stereology. Pharmacol Res Perspect 2021; 9:e00776. [PMID: 34107163 PMCID: PMC8189564 DOI: 10.1002/prp2.776] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 12/16/2022] Open
Abstract
The conjugation of nanoparticles (NPs) with antiretroviral drugs is a drug delivery approach with great potential for managing HIV infections. Despite their promise, recent studies have highlighted the toxic effects of nanoparticles on testicular tissue and their impact on sperm morphology. This review explores the role of stereological techniques in assessing the testicular morphology in highly active antiretroviral therapy (HAART) when a nanoparticle drug delivery system is used. Also, NPs penetration and pharmacokinetics concerning the testicular tissue and blood-testis barrier form the vital part of this review. More so, various classes of NPs employed in biomedical and clinical research to deliver antiretroviral drugs were thoroughly discussed. In addition, considerations for minimizing nanoparticle-drugs toxicity, ensuring enhanced permeability of nanoparticles, maximizing drug efficacy, ensuring adequate bioavailability, and formulation of HAART-NPs fabrication are well discussed.
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Affiliation(s)
- Edwin Coleridge S. Naidu
- Discipline of Clinical AnatomySchool of Laboratory Medicine & Medical SciencesNelson R Mandela School of MedicineUniversity of KwaZulu‐NatalDurbanSouth Africa
| | - Samuel Oluwaseun Olojede
- Discipline of Clinical AnatomySchool of Laboratory Medicine & Medical SciencesNelson R Mandela School of MedicineUniversity of KwaZulu‐NatalDurbanSouth Africa
| | - Sodiq Kolawole Lawal
- Discipline of Clinical AnatomySchool of Laboratory Medicine & Medical SciencesNelson R Mandela School of MedicineUniversity of KwaZulu‐NatalDurbanSouth Africa
| | - Carmen Olivia Rennie
- Discipline of Clinical AnatomySchool of Laboratory Medicine & Medical SciencesNelson R Mandela School of MedicineUniversity of KwaZulu‐NatalDurbanSouth Africa
| | - Onyemaechi Okpara Azu
- Discipline of Clinical AnatomySchool of Laboratory Medicine & Medical SciencesNelson R Mandela School of MedicineUniversity of KwaZulu‐NatalDurbanSouth Africa
- Department of AnatomySchool of MedicineUniversity of NamibiaWindhoekNamibia
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Reparative and toxicity-reducing effects of liposome-encapsulated saikosaponin in mice with liver fibrosis. Biosci Rep 2021; 40:225990. [PMID: 32756863 PMCID: PMC7426636 DOI: 10.1042/bsr20201219] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 07/24/2020] [Accepted: 08/04/2020] [Indexed: 12/19/2022] Open
Abstract
Saikosaponin d (SSd), a primary active component of the Chinese herb Bupleurum falcatum, has antitumor and antiliver fibrosis effects. However, the toxicity of SSd at high doses can induce conditions such as metabolic disorders and hemolysis in vivo, thus hampering its clinical use. The present study investigated the toxicity-reducing effects of liposome encapsulation of pure SSd and the therapeutic action of SSd-loaded liposomes (Lipo-SSd) in liver fibrosis in vitro and in vivo. Lipo-SSd (diameter, 31.7 ± 7.8 nm) was prepared at an entrapment efficiency of 94.1%. After 10-day incubation, a slow release profile of 56% SSd from Lipo-SSd was observed. The IC50 of SSd on hepatic stellate cells was approximately 2.9 μM. Lipo-SSd exhibited much lower cytotoxicity than did pure SSd. In the in vivo toxicity assay, Lipo-SSd significantly increased mice survival rate and duration compared with pure SSd at the same dose. These in vitro and in vivo data indicate that liposomal encapsulation can reduce the cytotoxicity of SSd. The histopathological analysis results demonstrated that in mice with thioacetamide-induced liver fibrosis, Lipo-SSd exerted more obvious fibrosis- and inflammation-alleviating and liver tissue-reparative effects than did pure SSd; these effects are potentially attributable to the sustained release of SSd. In conclusion, Lipo-SSd fabricated here have antiliver fibrosis effects and lower toxicity compared with that of pure SSd.
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11
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Drug Carriers: Classification, Administration, Release Profiles, and Industrial Approach. Processes (Basel) 2021. [DOI: 10.3390/pr9030470] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
This work is aimed at providing a description of the complex world of drug carriers, starting from the description of this particular market in terms of revenue. Then, a brief overview of several types of conventional and innovative drug carrier systems has been included. The types of administration routes were also analyzed, with a critical and qualitative comment on drug release kinetics and drug profile shapes. Carriers were classified according to their ability to provide a prolonged and targeted release. The concept of the therapeutic window has been presented, providing advantages of having pulsed drug release to avoid side effects to target tissues. A critical comment on the use of conventional and innovative techniques for the production of drug carriers by large industrial companies has been proposed. As a final attempt for this work, an overall unique schematization of a drug carrier production process has been added, highlighting the necessity to create a strong double link among world-requested versatility of drug carriers for human applications and the newly developed industrial processes.
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12
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Trzciński JW, Morillas-Becerril L, Scarpa S, Tannorella M, Muraca F, Rastrelli F, Castellani C, Fedrigo M, Angelini A, Tavano R, Papini E, Mancin F. Poly(lipoic acid)-Based Nanoparticles as Self-Organized, Biocompatible, and Corona-Free Nanovectors. Biomacromolecules 2020; 22:467-480. [PMID: 33347750 PMCID: PMC8016167 DOI: 10.1021/acs.biomac.0c01321] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
![]()
Herein
we present an innovative approach to produce biocompatible,
degradable, and stealth polymeric nanoparticles based on poly(lipoic
acid), stabilized by a PEG-ended surfactant. Taking advantage of the
well-known thiol-induced polymerization of lipoic acid, a universal
and nontoxic nanovector consisted of a solid cross-linked polymeric
matrix of lipoic acid monomers was prepared and loaded with active
species with a one-step protocol. The biological studies demonstrated
a high stability in biological media, the virtual absence of “protein”
corona in biological fluids, the absence of acute toxicity in vitro
and in vivo, complete clearance from the organism, and a relevant
preference for short-term accumulation in the heart. All these features
make these nanoparticles candidates as a promising tool for nanomedicine.
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Affiliation(s)
- Jakub W Trzciński
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, Padova, I-35131, Italy
| | - Lucía Morillas-Becerril
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, Padova, I-35131, Italy
| | - Sara Scarpa
- Dipartimento di Scienze Biomediche, Università di Padova, via U. Bassi 58/B1, Padova, I-35131, Italy.,Centre for Innovative Biotechnological Research-CRIBI, Università di Padova, via U. Bassi 58/B1, Padova, I-35131, Italy
| | - Marco Tannorella
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, Padova, I-35131, Italy
| | - Francesco Muraca
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, Padova, I-35131, Italy
| | - Federico Rastrelli
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, Padova, I-35131, Italy
| | - Chiara Castellani
- Patologia Cardiovascolare e Anatomia Patologica, Dipartimento di Scienze Cardio-Toraco-Vascolari e Sanità Pubblica, Università di Padova, via Giustiniani 2, Padova, I-35128, Italy
| | - Marny Fedrigo
- Patologia Cardiovascolare e Anatomia Patologica, Dipartimento di Scienze Cardio-Toraco-Vascolari e Sanità Pubblica, Università di Padova, via Giustiniani 2, Padova, I-35128, Italy
| | - Annalisa Angelini
- Patologia Cardiovascolare e Anatomia Patologica, Dipartimento di Scienze Cardio-Toraco-Vascolari e Sanità Pubblica, Università di Padova, via Giustiniani 2, Padova, I-35128, Italy
| | - Regina Tavano
- Dipartimento di Scienze Biomediche, Università di Padova, via U. Bassi 58/B1, Padova, I-35131, Italy.,Centre for Innovative Biotechnological Research-CRIBI, Università di Padova, via U. Bassi 58/B1, Padova, I-35131, Italy
| | - Emanuele Papini
- Dipartimento di Scienze Biomediche, Università di Padova, via U. Bassi 58/B1, Padova, I-35131, Italy.,Centre for Innovative Biotechnological Research-CRIBI, Università di Padova, via U. Bassi 58/B1, Padova, I-35131, Italy
| | - Fabrizio Mancin
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, Padova, I-35131, Italy
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Ma Q, Gao Y, Sun W, Cao J, Liang Y, Han S, Wang X, Sun Y. Self-Assembled chitosan/phospholipid nanoparticles: from fundamentals to preparation for advanced drug delivery. Drug Deliv 2020; 27:200-215. [PMID: 31983258 PMCID: PMC7034086 DOI: 10.1080/10717544.2020.1716878] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 01/04/2020] [Accepted: 01/13/2020] [Indexed: 12/20/2022] Open
Abstract
With the development of nanotechnology, self-assembled chitosan/phospholipid nanoparticles (SACPNs) show great promise in a broad range of applications, including therapy, diagnosis, in suit imaging and on-demand drug delivery. Here, a brief review of the SACPNs is presented, and its critical underlying formation mechanisms are interpreted with an emphasis on the intrinsic physicochemical properties. The state-of-art preparation methods of SACPNs are summarized, with particular descriptions about the classic solvent injection method. Then SACPNs microstructures are characterized, revealing the unique spherical core-shell structure and the drug release mechanisms. Afterwards, a comprehensive and in-depth depiction of their emerging applications, with special attention to drug delivery areas, are categorized and reviewed. Finally, conclusions and outlooks on further advancing the SACPNs toward a more powerful and versatile platform for investigations covering from fundamental understanding to developing multi-functional drug delivery systems are discussed.
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Affiliation(s)
- Qingming Ma
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, China
| | - Yang Gao
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, China
| | - Wentao Sun
- Center for Basic Medical Research, TEDA International Cardiovascular Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Jie Cao
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, China
| | - Yan Liang
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, China
| | - Shangcong Han
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, China
| | - Xinyu Wang
- Institute of Thermal Science and Technology, Shandong University, Jinan, China
| | - Yong Sun
- Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, China
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14
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Pinto EG, Barbosa LRS, Mortara RA, Tempone AG. Targeting intracellular Leishmania (L.) infantum with nitazoxanide entrapped into phosphatidylserine-nanoliposomes: An experimental study. Chem Biol Interact 2020; 332:109296. [PMID: 33096056 PMCID: PMC7573672 DOI: 10.1016/j.cbi.2020.109296] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/05/2020] [Accepted: 10/19/2020] [Indexed: 11/24/2022]
Abstract
Leishmaniasis is a parasitic neglected tropical disease and result in a broad spectrum of clinical manifestations, ranging from a single ulceration to a progressive and fatal visceral disease. Comprising a limited and highly toxic therapeutic arsenal, new treatments are urgently needed. Targeting delivery of drugs has been a promising approach for visceral leishmaniasis (VL). Phosphatidylserine-liposomes have demonstrated superior efficacy in VL, targeting intracellular parasites in host cells through macrophage scavenger receptors. In this work, we investigated the in vitro and in vivo efficacy of the antihelminthic drug nitazoxanide in a nanoliposomal formulation against Leishmania (L.) infantum. Physicochemical parameters of liposomes containing nitazoxanide (NTZ-LP) were determined by dynamic light scattering and small angle X-ray scattering. The efficacy of the formulation was verified in an intracellular amastigote model and in an experimental hamster model. Our findings showed that NTZ-LP was able to eliminate the amastigotes inside the host cell with an IC50 value of 16 μM. NTZ-LP was labelled a fluorescent probe and by spectrofluorimetry, we observed that the infected macrophages internalized similar levels of the drug to the uninfected cells. The confocal microscopy images confirmed the uptake and demonstrated a diffuse distribution of the NTZ-LP in the cytoplasm of Leishmania-infected macrophages, with the vesicles in a closer proximity to the parasites. For the in vivo efficacy, the liposomal NTZ-LP was administrated intraperitoneally to Leishmania-infected hamsters for 10 consecutive days at 2 mg/kg/day. By qPCR we demonstrated a reduction of the parasite burden by 82% and 50% in the liver (p < 0.05) and spleen (p < 0.05), respectively. NTZ (non-liposomal) was administered at 100 mg/kg/day per oral (p.o.) for the same period, but demonstrated no efficacy. This liposomal formulation ensured a targeting delivery of NTZ to the intracellular parasites, resulting in an good efficacy at a low dose in animals, and it may represent a new candidate therapy for VL. Nanoliposomal nitazoxanide (NTZ-LP) eliminates amastigotes of Leishmania. The uptake of NTZ-LP by infected macrophages is similar to uninfected cells. NTZ-LP localizes in a closer proximity to the amastigotes inside the macrophages. NTZ-LP reduces the parasite burden by 82% (liver) and 50% (spleen) of hamsters.
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Affiliation(s)
- Erika Gracielle Pinto
- Drug Discovery Unit, Division of Biological Chemistry and Drug Discovery, College of Life Sciences, University of Dundee, Sir James Black Centre, Dundee DD1 5EH, UK
| | - Leandro R S Barbosa
- Instituto de Física, Universidade de São Paulo, Rua do Matão, 1, 05508-090, São Paulo, SP, Brazil
| | - Renato A Mortara
- Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, UNIFESP, Rua Botucatu 862, 6◦ andar, 04039-02, São Paulo, SP, Brazil
| | - Andre Gustavo Tempone
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, Av. Dr. Arnaldo, 351, 8(o) andar, 01246-000, São Paulo, SP, Brazil.
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15
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Omar SH, Osman R, Mamdouh W, Abdel-Bar HM, Awad GAS. Bioinspired lipid-polysaccharide modified hybrid nanoparticles as a brain-targeted highly loaded carrier for a hydrophilic drug. Int J Biol Macromol 2020; 165:483-494. [PMID: 32987085 DOI: 10.1016/j.ijbiomac.2020.09.170] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 09/11/2020] [Accepted: 09/20/2020] [Indexed: 12/31/2022]
Abstract
Lipid-polysaccharide modified biohybrid nanoparticles (NPs) are eminent drug carriers for brain targeting, owing to their ability to prolong the circulation time and penetrate the blood brain barrier (BBB). Biohybrid NPs particular interest arises from their potential to mimic biological components. Herein, we prepared bioinspired lipid polymeric NPs, either naked or surface modified by a synthesized biocompatible dextran-cholic acid (DxC). The nanoprecipitation method was tailored to allow the assembly of the multicomponent NPs in a single step. Modulating the solvent/antisolvent system provided lipid polymer hybrid NPs in the size of 111.6 ± 11.4 nm size. The NPs encapsulated up to 92 ± 1.2% of a hydrophilic anti-Alzheimer drug, rivastigmine (Riv). The brain uptake, biodistribution and pharmacokinetics studies, proved the efficient fast penetration of the bioinspired surface modified NPs to the brain of healthy albino rats. The modified nanocarrier caused a 5.4 fold increase in brain targeting efficiency compared to the drug solution. Furthermore, the presence of DxC increased Riv's brain residence time up to 40 h. The achieved results suggest that the fabricated biohybrid delivery system was able to circumvent the BBB and is expected to minimize Riv systemic side effects.
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Affiliation(s)
- Sara Hassan Omar
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt; Department of Chemistry, School of Sciences and Engineering, The American University in Cairo, New Cairo, Egypt
| | - Rihab Osman
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.
| | - Wael Mamdouh
- Department of Chemistry, School of Sciences and Engineering, The American University in Cairo, New Cairo, Egypt
| | - Hend Mohamed Abdel-Bar
- Department of Pharmaceutics, Faculty of Pharmacy, University of Sadat City, Menoufia, Egypt
| | - Gehanne A S Awad
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
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16
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Martínez-López AL, Pangua C, Reboredo C, Campión R, Morales-Gracia J, Irache JM. Protein-based nanoparticles for drug delivery purposes. Int J Pharm 2020; 581:119289. [DOI: 10.1016/j.ijpharm.2020.119289] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/27/2020] [Accepted: 03/28/2020] [Indexed: 02/07/2023]
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17
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Lavanya V, Rajeswari P, Vidyavathi M, Sureshkumar RV. Preparation of Atorvastatin Loaded Chitosan Nanoparticles: In Vitro and In Vivo Evaluations. INTERNATIONAL JOURNAL OF NANOSCIENCE 2020. [DOI: 10.1142/s0219581x19500364] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
This study is aimed at the preparation and evaluation of atorvastatin (AN)-loaded chitosan (CS) nanoparticles to achieve improved bioavailability of atorvastatin as its bioavailability is very poor. Chitosan is a popular choice in the application as a drug delivery carrier due to its biocompatibility, chemical versatility, aqueous solubility and low cost. Hence, a total of nine formulations (AN1–AN9) were prepared to study the effects of CS:tripolyphosphate (TPP) ratio and the amount of drug. The best formulation was selected by calculating the overall desirability (OD) factor. Among all, AN9 was found to possess the maximum percentage yield, loading efficiency and percentage (%) drug release compared to other formulations due to the incorporation of more amount of polymer compared to other formulations. SEM microphotographs and zeta-sizer reports indicated that atorvastatin-loaded chitosan nanoparticles were in the nanometric range and were spherical, discrete and uniform in size. The selected polymer chitosan was found to possess good compatibility with atorvastatin, without any mutual interaction, based on the results of DSC and FTIR analyses. The nanoparticles were found to have good flow properties. The in vivo results proved that the best formulation has shown significant difference in the reduction of triglycerides (TG), total cholesterol (TC) and no significant change in high density lipids (HDL) cholesterol levels in blood when compared with the marketed formulation. Better regenerative changes were observed during histopathological evaluation of liver in a group treated with atorvastatin nanoparticles than those of other groups, that confirmed the improved hypolipidemic action. Thus, from all the above observations, it was concluded that AN9 formulation has shown the highest in vitro drug release and loading efficiency than other formulations, which might be due to increased entrapment of drug and the surface area through decreased particle size which further confirmed the improved in vitro bioavailability and in vivo performance than those of marketed atorvastatin tablet. This study strongly suggests the use of chitosan nanoparticles as drug delivery system to improve the bioavailability of atorvastatin.
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Affiliation(s)
- V. Lavanya
- Institute of Pharmaceutical Technology, Sri Padmavati Mahila Visvavidyalayam, Tirupati 517502, Andhra Pradesh, India
| | - P. Rajeswari
- Institute of Pharmaceutical Technology, Sri Padmavati Mahila Visvavidyalayam, Tirupati 517502, Andhra Pradesh, India
| | - M. Vidyavathi
- Institute of Pharmaceutical Technology, Sri Padmavati Mahila Visvavidyalayam, Tirupati 517502, Andhra Pradesh, India
| | - R. V. Sureshkumar
- Department of Surgery and Radiology, College of Veterinary Science, SV Veterinary University, Tirupati 517502, Andhra Pradesh, India
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18
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Alfaifi MY, Shati AA, Alshehri MA, Elbehairi SEI, Fahmy UA, Alshehri OY. Atorvastatin-TPGS-PLGA Nanoparticles Cytotoxicity Augmentation Against Liver Cancer HepG2 cells. INT J PHARMACOL 2020. [DOI: 10.3923/ijp.2020.79.86] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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19
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Naidu PSR, Denham E, Bartlett CA, McGonigle T, Taylor NL, Norret M, Smith NM, Dunlop SA, Iyer KS, Fitzgerald M. Protein corona formation moderates the release kinetics of ion channel antagonists from transferrin-functionalized polymeric nanoparticles. RSC Adv 2020; 10:2856-2869. [PMID: 35496130 PMCID: PMC9048831 DOI: 10.1039/c9ra09523c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 12/25/2019] [Indexed: 11/21/2022] Open
Abstract
Transferrin (Tf)-functionalized p(HEMA-ran-GMA) nanoparticles were designed to incorporate and release a water-soluble combination of three ion channel antagonists, namely zonampanel monohydrate (YM872), oxidized adenosine triphosphate (oxATP) and lomerizine hydrochloride (LOM) identified as a promising therapy for secondary degeneration that follows neurotrauma. Coupled with a mean hydrodynamic size of 285 nm and near-neutral surface charge of −5.98 mV, the hydrophilic nature of the functionalized polymeric nanoparticles was pivotal in effectively encapsulating the highly water soluble YM872 and oxATP, as well as lipophilic LOM dissolved in water-based medium, by a back-filling method. Maximum loading efficiencies of 11.8 ± 1.05% (w/w), 13.9 ± 1.50% (w/w) and 22.7 ± 4.00% (w/w) LOM, YM872 and oxATP respectively were reported. To obtain an estimate of drug exposure in vivo, drug release kinetics assessment by HPLC was conducted in representative physiological milieu containing 55% (v/v) human serum at 37 °C. In comparison to serum-free conditions, it was demonstrated that the inevitable adsorption of serum proteins on the Tf-functionalized nanoparticle surface as a protein corona impeded the rate of release of LOM and YM872 at both pH 5 and 7.4 over a period of 1 hour. While the release of oxATP from the nanoparticles was detectable for up to 30 minutes under serum-free conditions at pH 7.4, the presence of serum proteins and a slightly acidic environment impaired the detection of the drug, possibly due to its molecular instability. Nevertheless, under representative physiological conditions, all three drugs were released in combination from Tf-functionalized p(HEMA-ran-GMA) nanoparticles and detected for up to 20 minutes. Taken together, the study provided enhanced insight into potential physiological outcomes in the presence of serum proteins, and suggests that p(HEMA-ran-GMA)-based therapeutic nanoparticles may be promising drug delivery vehicles for CNS therapy. Transferrin (Tf)-functionalized p(HEMA-ran-GMA) nanoparticles were designed to incorporate and release a water-soluble combination of three ion channel antagonists, identified as a promising therapy for secondary degeneration following neurotrauma.![]()
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Affiliation(s)
- Priya S. R. Naidu
- School of Molecular Sciences
- The University of Western Australia
- Crawley
- Australia
| | - Eleanor Denham
- Curtin Health Innovation Research Institute
- Curtin University
- Bentley
- Australia
| | - Carole A. Bartlett
- Curtin Health Innovation Research Institute
- Curtin University
- Bentley
- Australia
| | - Terry McGonigle
- Curtin Health Innovation Research Institute
- Curtin University
- Bentley
- Australia
| | - Nicolas L. Taylor
- School of Molecular Sciences
- The University of Western Australia
- Crawley
- Australia
- Australian Research Council Centre of Excellence in Plant Energy Biology
| | - Marck Norret
- School of Molecular Sciences
- The University of Western Australia
- Crawley
- Australia
| | - Nicole. M. Smith
- School of Molecular Sciences
- The University of Western Australia
- Crawley
- Australia
| | - Sarah A. Dunlop
- School of Biological Sciences
- The University of Western Australia
- Crawley
- Australia
| | - K. Swaminathan Iyer
- School of Molecular Sciences
- The University of Western Australia
- Crawley
- Australia
| | - Melinda Fitzgerald
- Curtin Health Innovation Research Institute
- Curtin University
- Bentley
- Australia
- School of Biological Sciences
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20
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Baranowska-Korczyc A, Mackiewicz E, Ranoszek-Soliwoda K, Grobelny J, Celichowski G. Facile synthesis of SnO 2shell followed by microwave treatment for high environmental stability of Ag nanoparticles. RSC Adv 2020; 10:38424-38436. [PMID: 35517546 PMCID: PMC9057269 DOI: 10.1039/d0ra06159j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 10/01/2020] [Indexed: 11/21/2022] Open
Abstract
This study describes a new method for passivating Ag nanoparticles (AgNPs) with SnO2 layer and their further treatment by microwave irradiation. The one-step process of SnO2 layer formation was carried out by adding sodium stannate to the boiling aqueous AgNPs solution, which resulted in the formation of core@shell Ag@SnO2 nanoparticles. The coating formation was a tunable process, making it possible to obtain an SnO2 layer thickness in the range from 2 to 13 nm. The morphology, size, zeta-potential, and optical properties of the Ag@SnO2NPs were studied. The microwave irradiation significantly improved the environmental resistance of Ag@SnO2NPs, which remained stable in different biological solutions such as NaCl at 150 mM and 0.1 M, Tris-buffered saline buffer at 0.1 M, and phosphate buffer at pH 5.6, 7.0, and 8.0. Ag@SnO2NPs after microwave irradiation were also stable at biologically relevant pH values, both highly acidic (1.4) and alkaline (13.2). Moreover, AgNPs covered with a 13 nm-thick SnO2 layer were resistant to cyanide up to 0.1 wt%. The microwave-treated SnO2 shell can facilitate the introduction of AgNPs in various solutions and extend their potential application in biological environments by protecting the metal nanostructures from dissolution and aggregation. This study describes a new method for passivating Ag nanoparticles (AgNPs) with SnO2 layer and their further treatment by microwave irradiation.![]()
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Affiliation(s)
- Anna Baranowska-Korczyc
- Faculty of Chemistry
- Department of Materials Technology and Chemistry
- The University of Łódź
- Łódź 90-236
- Poland
| | - Ewelina Mackiewicz
- Faculty of Chemistry
- Department of Materials Technology and Chemistry
- The University of Łódź
- Łódź 90-236
- Poland
| | | | - Jarosław Grobelny
- Faculty of Chemistry
- Department of Materials Technology and Chemistry
- The University of Łódź
- Łódź 90-236
- Poland
| | - Grzegorz Celichowski
- Faculty of Chemistry
- Department of Materials Technology and Chemistry
- The University of Łódź
- Łódź 90-236
- Poland
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21
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Loukanov A, Nikolova S, Filipov C, Nakabayashi S. Nanomaterials for cancer medication: from individual nanoparticles toward nanomachines and nanorobots. PHARMACIA 2019. [DOI: 10.3897/pharmacia.66.e37739] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The nanomaterials for cancer medication are already reality providing a wide range of new tools and possibilities, from earlier diagnostics and improved imaging to better, more efficient, and more targeted anticancer therapies. The purpose of this critical review is to focus on the current use of clinically approved nanoparticles for cancer theranostic, nanovaccines and delivery platforms for gene therapy. These include inorganic, metal and polymer nanoparticles, nanocrystals and varieties of drug delivery nanosystems (micelles, liposomes, microcapsules and etc.). The recent progress in cancer nanomedicine enables to combine the benefits of individual nanoparticles with biomolecules into a multifunction nanomachines and even highly advanced nanorobots for targeted therapies. Nowadays clinical trials with advanced anticancer nanomachines provide potential for more accurately and effective identification and destruction of the cancer cells present in the human body.
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22
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Trucillo P, Campardelli R, Reverchon E. Antioxidant loaded emulsions entrapped in liposomes produced using a supercritical assisted technique. J Supercrit Fluids 2019. [DOI: 10.1016/j.supflu.2019.104626] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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23
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Jesus S, Schmutz M, Som C, Borchard G, Wick P, Borges O. Hazard Assessment of Polymeric Nanobiomaterials for Drug Delivery: What Can We Learn From Literature So Far. Front Bioeng Biotechnol 2019; 7:261. [PMID: 31709243 PMCID: PMC6819371 DOI: 10.3389/fbioe.2019.00261] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 09/26/2019] [Indexed: 12/12/2022] Open
Abstract
The physicochemical properties of nanobiomaterials, such as their small size and high surface area ratio, make them attractive, novel drug-carriers, with increased cellular interaction and increased permeation through several biological barriers. However, these same properties hinder any extrapolation of knowledge from the toxicity of their raw material. Though, as suggested by the Safe-by-Design (SbD) concept, the hazard assessment should be the starting point for the formulation development. This may enable us to select the most promising candidates of polymeric nanobiomaterials for safe drug-delivery in an early phase of innovation. Nowadays the majority of reports on polymeric nanomaterials are focused in optimizing the nanocarrier features, such as size, physical stability and drug loading efficacy, and in performing preliminary cytocompatibility testing and proving effectiveness of the drug loaded formulation, using the most diverse cell lines. Toxicological studies exploring the biological effects of the polymeric nanomaterials, particularly regarding immune system interaction are often disregarded. The objective of this review is to illustrate what is known about the biological effects of polymeric nanomaterials and to see if trends in toxicity and general links between physicochemical properties of nanobiomaterials and their effects may be derived. For that, data on chitosan, polylactic acid (PLA), polyhydroxyalkanoate (PHA), poly(lactic-co-glycolic acid) (PLGA) and policaprolactone (PCL) nanomaterials will be evaluated regarding acute and repeated dose toxicity, inflammation, oxidative stress, genotoxicity, toxicity on reproduction and hemocompatibility. We further intend to identify the analytical and biological tests described in the literature used to assess polymeric nanomaterials toxicity, to evaluate and interpret the available results and to expose the obstacles and challenges related to the nanomaterial testing. At the present time, considering all the information collected, the hazard assessment and thus also the SbD of polymeric nanomaterials is still dependent on a case-by-case evaluation. The identified obstacles prevent the identification of toxicity trends and the generation of an assertive toxicity database. In the future, in vitro and in vivo harmonized toxicity studies using unloaded polymeric nanomaterials, extensively characterized regarding their intrinsic and extrinsic properties should allow to generate such database. Such a database would enable us to apply the SbD approach more efficiently.
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Affiliation(s)
- Sandra Jesus
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Mélanie Schmutz
- Laboratory for Technology and Society, Empa Swiss Laboratories for Materials Science and Technology, St. Gallen, Switzerland
| | - Claudia Som
- Laboratory for Technology and Society, Empa Swiss Laboratories for Materials Science and Technology, St. Gallen, Switzerland
| | - Gerrit Borchard
- School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland
| | - Peter Wick
- Laboratory for Particles-Biology Interactions, Empa Swiss Laboratories for Materials Science and Technology, St. Gallen, Switzerland
| | - Olga Borges
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
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24
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Ribeiro EB, de Marchi PGF, Honorio-França AC, França EL, Soler MAG. Interferon-gamma carrying nanoemulsion with immunomodulatory and anti-tumor activities. J Biomed Mater Res A 2019; 108:234-245. [PMID: 31587469 DOI: 10.1002/jbm.a.36808] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 09/14/2019] [Accepted: 09/16/2019] [Indexed: 12/20/2022]
Abstract
The therapeutic administration of cytokines has been introduced aiming to modulate the immune response system, seeking for different approaches to face pathologies such as cancer, auto immune and infectious diseases. The objective of this study was to investigate the effects of a stable oil-in-water (O/W) nanoemulsion system carrying the cytokine Interferon gamma (IFN-γ) on the activity of phagocytes and MCF-7 human breast cancer cells. Nanoemulsions were prepared through ultra-homogenization, and they consisted of distilled water, triglycerides of capric acid/caprylic, sorbitan-oleate, polysorbate 80, and 1-butanol. IFN-γ (100 ng ml-1 ) was incorporated into two O/W nanoemulsion formulations, and these formulations were characterized in terms of their preliminary and accelerated physicochemical stability, rheological properties, droplet size, polydispersity and surface charge. We identified the most optimal IFN-γ nanoemulsion (IFN-γNE2), which remained stable under extreme temperature variations for 90 days, contained an average dose of 97 ng ml-1 of IFN-γ and exhibited a biocompatible pH and a relative stable rheological profile. Cell viability and intracellular Ca2+ release assays conducted showed that IFN-γNE2 reduced the cell viability of MCF-7 cells without affecting the cell viability of phagocytes. Furthermore, IFN-γNE2 was able to induce cellular activity of phagocytes as evidenced by increased intracellular Ca2+ release in these cells. Our findings on this IFN-γ nanoemulsion suggest that it can be a promising therapeutic agent for immunostimulation and cancer treatment.
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Affiliation(s)
- Elton B Ribeiro
- Institute of Physics, University of Brasilia, Brasilia-DF, Brazil.,Institute of Health Science, Federal University of Mato Grosso, Sinop, MT, Brazil
| | - Patricia G F de Marchi
- Institute of Biological and Health Science, Federal University of Mato Grosso, Barra do Garças, MT, Brazil
| | - Adenilda C Honorio-França
- Institute of Biological and Health Science, Federal University of Mato Grosso, Barra do Garças, MT, Brazil
| | - Eduardo L França
- Institute of Biological and Health Science, Federal University of Mato Grosso, Barra do Garças, MT, Brazil
| | - Maria A G Soler
- Institute of Physics, University of Brasilia, Brasilia-DF, Brazil
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25
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Synthesis of organic phase change materials (PCM) for energy storage applications: A review. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.nanoso.2019.100399] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Li C, Cai G, Song D, Gao R, Teng P, Zhou L, Ji Q, Sui H, Cai J, Li Q, Wang Y. Development of EGFR-targeted evodiamine nanoparticles for the treatment of colorectal cancer. Biomater Sci 2019; 7:3627-3639. [PMID: 31328737 DOI: 10.1039/c9bm00613c] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Invasion and metastasis of colorectal cancer (CRC) are leading causes of death of CRC patients. Previous findings demonstrate that evodiamine (Evo), an indolequinone alkaloid, is effective in combating CRC; however, its poor aqueous solubility and low oral bioavailability limit its application in the prevention of invasion and metastasis of CRC. It is known that selectively targeting cancer-specific receptors highly expressed on the surface of cancer cells by nanocarriers loaded with cytotoxic drugs is a viable strategy in nanobiotechnology to enhance cancer cell killing and minimize side effects. In this study, we report the development of a new class of nanotherapeutics: EGFR-targeting Evo-encapsulated poly(amino acid) nanoparticles (GE11-Evo-NPs). These nanoparticles exhibited good aqueous solubility, slow release, and active targeting capability. Their inhibitory effect on human colon cancer cells and therapeutic efficacy against invasion and metastasis of CRC in nude mice were systematically investigated. Mechanisms of the GE11-Evo-NPs against EGFR mediated invasion and metastasis of CRC were also explored. Compared with free Evo, the GE11-Evo-NPs showed significantly increased cytotoxicity to colon cancer cells and potently inhibited CRC LoVo cell adhesion, invasion, and migration. The expression of EGFR, VEGF, and MMP proteins was dramatically down-regulated, which may partially account for their inhibition of invasion and metastasis of CRC. Moreover, in vivo studies show that the GE11-Evo-NPs exhibited much greater potency than other control groups in inhibiting CRC invasion and metastasis, tumor volume, and growth in nude mice, leading to a significantly prolonged tumor-bearing survival duration (P < 0.01).
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Affiliation(s)
- Chunpu Li
- Department of Medical Oncology & Cancer institute of medicine, Shuguang Hospital, Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
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Quijia Quezada C, Azevedo CS, Charneau S, Santana JM, Chorilli M, Carneiro MB, Bastos IMD. Advances in nanocarriers as drug delivery systems in Chagas disease. Int J Nanomedicine 2019; 14:6407-6424. [PMID: 31496694 PMCID: PMC6691952 DOI: 10.2147/ijn.s206109] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 05/31/2019] [Indexed: 12/12/2022] Open
Abstract
Chagas disease is one of the most important public health problems in Latin America due to its high mortality and morbidity levels. There is no effective treatment for this disease since drugs are usually toxic with low bioavailability. Serious efforts to achieve disease control and eventual eradication have been unsuccessful to date, emphasizing the need for rapid diagnosis, drug development, and a reliable vaccine. Novel systems for drug and vaccine administration based on nanocarriers represent a promising avenue for Chagas disease treatment. Nanoparticulate systems can reduce toxicity, and increase the efficacy and bioavailability of active compounds by prolonging release, and therefore improve the therapeutic index. Moreover, nanoparticles are able to interact with the host's immune system, modulating the immune response to favour the elimination of pathogenic microorganisms. In addition, new advances in diagnostic assays, such as nanobiosensors, are beneficial in that they enable precise identification of the pathogen. In this review, we provide an overview of the strategies and nanocarrier-based delivery systems for antichagasic agents, such as liposomes, micelles, nanoemulsions, polymeric and non-polymeric nanoparticles. We address recent progress, with a particular focus on the advances of nanovaccines and nanodiagnostics, exploring new perspectives on Chagas disease treatment.
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Affiliation(s)
- Christian Quijia Quezada
- Pathogen-Host Interface Laboratory, Department of Cell Biology, Institute of Biology, University of Brasilia, Brasília, Brazil
- Department of Drugs and Medicines, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Clênia S Azevedo
- Pathogen-Host Interface Laboratory, Department of Cell Biology, Institute of Biology, University of Brasilia, Brasília, Brazil
| | - Sébastien Charneau
- Laboratory of Protein Chemistry and Biochemistry, Department of Cell Biology, Institute of Biology, University of Brasilia, Brasília, Brazil
| | - Jaime M Santana
- Pathogen-Host Interface Laboratory, Department of Cell Biology, Institute of Biology, University of Brasilia, Brasília, Brazil
| | - Marlus Chorilli
- Department of Drugs and Medicines, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Marcella B Carneiro
- Electron Microscopy Laboratory, Department of Cell Biology, Institute of Biology, University of Brasilia, Brasília, Brazil
| | - Izabela Marques Dourado Bastos
- Pathogen-Host Interface Laboratory, Department of Cell Biology, Institute of Biology, University of Brasilia, Brasília, Brazil
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Design and Characterization of Chitosan Nanoformulations for the Delivery of Antifungal Agents. Int J Mol Sci 2019; 20:ijms20153686. [PMID: 31357647 PMCID: PMC6695956 DOI: 10.3390/ijms20153686] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 07/25/2019] [Accepted: 07/25/2019] [Indexed: 01/18/2023] Open
Abstract
Among different Candida species triggering vaginal candidiasis, Candida albicans is the most predominant yeast. It is commonly treated using azole drugs such as Tioconazole (TIO) and Econazole (ECO). However, their low water solubility may affect their therapeutic efficiency. Therefore, the aim of this research was to produce a novel chitosan nanocapsule based delivery system comprising of TIO or ECO and to study their suitability in vaginal application. These systems were characterized by their physicochemical properties, encapsulation efficiency, in vitro release, storage stability, cytotoxicity, and in vitro biological activity. Both nanocapsules loaded with TIO (average hydrodynamic size of 146.8 ± 0.8 nm, zeta potential of +24.7 ± 1.1 mV) or ECO (average hydrodynamic size of 127.1 ± 1.5 nm, zeta potential of +33.0 ± 1.0 mV) showed excellent association efficiency (99% for TIO and 87% for ECO). The analysis of size, polydispersity index, and zeta potential of the systems at 4, 25, and 37 °C (over a period of two months) showed the stability of the systems. Finally, the developed nanosystems presented fungicidal activity against C. albicans at non-toxic concentrations (studied on model human skin cells). The results obtained from this study are the first step in the development of a pharmaceutical dosage form suitable for the treatment of vaginal candidiasis.
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Narmani A, Rezvani M, Farhood B, Darkhor P, Mohammadnejad J, Amini B, Refahi S, Abdi Goushbolagh N. Folic acid functionalized nanoparticles as pharmaceutical carriers in drug delivery systems. Drug Dev Res 2019; 80:404-424. [PMID: 31140629 DOI: 10.1002/ddr.21545] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 03/02/2019] [Accepted: 05/07/2019] [Indexed: 12/15/2022]
Abstract
Conventional chemotherapeutic approaches in cancer therapy such as surgery, chemotherapy, and radiotherapy have several disadvantages due to their nontargeted distributions in the whole body. On the other hand, nanoparticles (NPs) based therapies are remarkably progressing to solve several limitations of conventional drug delivery systems (DDSs) including nonspecific biodistribution and targeting, poor water solubility, weak bioavailability and biodegradability, low pharmacokinetic properties, and so forth. The enhanced permeability and retention effect escape from P-glycoprotein trap in cancer cells as a passive targeting mechanism, and active targeting strategies are also other most important advantages of NPs in cancer diagnosis and therapy. Folic acid (FA) is one of the biologic molecules which has been targeted overexpressed-folic acid receptor (FR) on the surface of cancer cells. Therefore, conjugation of FA to NPs most easily enhances the FR-mediated targeting delivery of therapeutic agents. Here, the recent works in FA which have been decorated NPs-based DDSs are discussed and cancer therapy potency of these NPs in clinical trials are presented.
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Affiliation(s)
- Asghar Narmani
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Melina Rezvani
- Department of Biology, Faculty of Sciences, Payame Noor University, Tehran, Iran
| | - Bagher Farhood
- Department of Medical Physics and Radiology, Faculty of Paramedical Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Parvaneh Darkhor
- Department of Medical Physics, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Javad Mohammadnejad
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Bahram Amini
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Soheila Refahi
- Department of Medical Physics, Faculty of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Nouraddin Abdi Goushbolagh
- Department of Medical Physics, Faculty of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Glycerol monolaurate nanocapsules for biomedical applications: in vitro toxicological studies. Naunyn Schmiedebergs Arch Pharmacol 2019; 392:1131-1140. [PMID: 31079199 DOI: 10.1007/s00210-019-01663-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 05/02/2019] [Indexed: 12/23/2022]
Abstract
The glycerol monolaurate (GML) is a surfactant used in the food industry and has potent antimicrobial activity against many microorganisms; however, the use of GML is not expanded due its high melting point and poor solubility in water. The aim of the study was to produce, characterize, and evaluate in vitro the cytotoxicity of GML and GML nanocapsules. The GML nanocapsules were produced and characterized by a mean diameter, zeta potential, and polydispersity index. The cytotoxicity was evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), lactate dehydrogenase (LDH) release, thiobarbituric acid reactive substances (TBARS), and hemolytic activity. The genotoxicity was verified by comet assay. The physicochemical parameters showed a mean diameter of 192.5 ± 2.8 nm, a polydispersity index of 0.061 ± 0.018, and a zeta potential about - 21.9 ± 1 mV. The viability test demonstrated the protector effect of GML nanocapsule compared with the GML on peripheral blood mononuclear cells (PBMC) and VERO cells (isolated from kidney epithelial cells extracted from an African green monkey). A reduction in lipid peroxidation and lactate dehydrogenase release in GML nanocapsule-exposed cells compared with GML treated cells was observed. The damage on erythrocytes was addressed in treatment with GML, while the treatment with GML nanocapsules did not cause an effect. Moreover, the comet assay showed that the GML-caused genotoxicity and GML nanocapsules do not demonstrate damage. The study showed the reduction of toxicity of GML nanocapsules by many methods used in antimicrobial therapy.
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Olusanya TO, Calabrese G, Fatouros DG, Tsibouklis J, Smith JR. Liposome formulations of o-carborane for the boron neutron capture therapy of cancer. Biophys Chem 2019; 247:25-33. [DOI: 10.1016/j.bpc.2019.01.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 01/17/2019] [Accepted: 01/19/2019] [Indexed: 01/06/2023]
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Srikar G, Rani AP. Study on influence of polymer and surfactant on in vitro performance of biodegradable aqueous-core nanocapsules of tenofovirdisoproxil fumarate by response surface methodology. BRAZ J PHARM SCI 2019. [DOI: 10.1590/s2175-97902019000118736] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Grandhi Srikar
- Jawaharlal Nehru Technological University Kakinada, India; Acharya Nagarjuna University, India
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Naderi J, Giles C, Saboohi S, Griesser HJ, Coad BR. Surface-grafted antimicrobial drugs: Possible misinterpretation of mechanism of action. Biointerphases 2018; 13:06E409. [PMID: 30482023 PMCID: PMC6905654 DOI: 10.1116/1.5050043] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 10/15/2018] [Accepted: 10/16/2018] [Indexed: 12/31/2022] Open
Abstract
Antimicrobial surface coatings that act through a contact-killing mechanism (not diffusive release) could offer many advantages to the design of medical device coatings that prevent microbial colonization and infections. However, as the authors show here, to prevent arriving at an incorrect conclusion about their mechanism of action, it is essential to employ thorough washing protocols validated by surface analytical data. Antimicrobial surface coatings were fabricated by covalently attaching polyene antifungal drugs to surface coatings. Thorough washing (often considered to be sufficient to remove noncovalently attached molecules) was used after immobilization and produced samples that showed a strong antifungal effect, with a log 6 reduction in Candida albicans colony forming units. However, when an additional washing step using surfactants and warmed solutions was used, more firmly adsorbed compounds were eluted from the surface as evidenced by XPS and ToF-SIMS, resulting in reduction and complete elimination of in vitro antifungal activity. Thus, polyene molecules covalently attached to surfaces appear not to have a contact-killing effect, probably because they fail to reach their membrane target. Without additional stringent washing and surface analysis, the initial favorable antimicrobial testing results could have been misinterpreted as evidencing activity of covalently grafted polyenes, while in reality activity arose from desorbing physisorbed molecules. To avoid unintentional confirmation bias, they suggest that binding and washing protocols be analytically verified by qualitative/quantitative instrumental methods, rather than relying on false assumptions of the rigors of washing/soaking protocols.
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Affiliation(s)
- Javad Naderi
- Future Industries Institute, University of South Australia, Adelaide 5000, Australia
| | - Carla Giles
- Department of Primary Industries Parks Water and Environment Tasmania, Centre for Aquatic Animal Health and Vaccines, 165 Westbury Road, Prospect, Tasmania 7250, Australia
| | - Solmaz Saboohi
- Future Industries Institute, University of South Australia, Adelaide 5000, Australia
| | - Hans J Griesser
- Future Industries Institute, University of South Australia, Adelaide 5000, Australia
| | - Bryan R Coad
- Future Industries Institute, University of South Australia, Adelaide 5000, Australia
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Lysozyme and DNase I loaded poly (D, L lactide-co-caprolactone) nanocapsules as an oral delivery system. Sci Rep 2018; 8:13158. [PMID: 30177767 PMCID: PMC6120872 DOI: 10.1038/s41598-018-31303-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 08/16/2018] [Indexed: 12/17/2022] Open
Abstract
Clinical applications of oral protein therapy for the treatment of various chronic diseases are limited due to the harsh conditions encounter the proteins during their journey in the Gastrointestinal Tract. Although nanotechnology forms a platform for the development of oral protein formulations, obtaining physiochemically stable formulations able to deliver active proteins is still challenging because of harsh preparation conditions. This study proposes the use of poly (D, L-lactic-co-caprolactone)-based polymeric nanocapsules at different monomers' ratios for protein loading and oral delivery. All formulations had a spherical shape and nano-scale size, and lysozyme encapsulation efficiency reached 80% and significantly affected by monomers' ratio. Trehalose and physical state of lysozyme had a significant effect on its biological activity (P < 0.05). Less than 10% of the protein was released in simulated gastric fluid, and 73% was the highest recorded accumulative release percentage in simulated intestinal fluid (SIF) over 24 h. The higher caprolactone content, the higher encapsulation efficiency (EE) and the lower SIF release recorded. Therefore, the formulation factors were optimised and the obtained system was PEGylated wisely to attain EE 80%, 81% SIF release within 24 h, and 98% lysozyme biological activity. The optimum formulation was prepared to deliver DNase, and similar attributes were obtained.
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35
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The effect of polymer length on the in vitro characteristics of a drug loaded and targeted silica nanoparticles. Saudi Pharm J 2018; 26:1022-1026. [PMID: 30416358 PMCID: PMC6218376 DOI: 10.1016/j.jsps.2018.05.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 05/21/2018] [Indexed: 11/20/2022] Open
Abstract
The objective of this research was to investigate the effect of polymer length on the in vitro characteristics of thymoquinone-melatonin (TQ-MLT) when loaded into our previously prepared targeted drug delivery system (TDDS). Our system constructed from silica nanoparticles (NPs) and modified with diamine polymer (D4000), carboxymethyl-β-cyclodextrin (CM-β-CD) and folic acid (FA), respectively. In this study, three other different lengths of polymers (D230, D400 and D2000) were used and compared to D4000. The surface modification was characterized using fourier transform infrared spectroscopy (FTIR) and the mean particle size as well as polydispersity (PD) was measured using dynamic light scattering (DLS). The results, in general, showed that the release rate increases as the polymer length decreases. Also, shorter polymers showed an obvious burst release of most of the drug within the first hour. On the other hand, longer polymers exhibited a more sustained release in a pulsatile manner, with two moderate drug burst patterns occurred within the first and the last few hours. The in vitro cell viability assay showed that the percentage of cell toxicity toward HeLa cells increases with increasing the polymer length.
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de Assis DN, Araújo RS, Fuscaldi LL, Fernandes SOA, Mosqueira VCF, Cardoso VN. Biodistribution of free and encapsulated 99mTc-fluconazole in an infection model induced by Candida albicans. Biomed Pharmacother 2018; 99:438-444. [DOI: 10.1016/j.biopha.2018.01.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 12/30/2017] [Accepted: 01/03/2018] [Indexed: 10/18/2022] Open
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Marcinkowska M, Sobierajska E, Stanczyk M, Janaszewska A, Chworos A, Klajnert-Maculewicz B. Conjugate of PAMAM Dendrimer, Doxorubicin and Monoclonal Antibody-Trastuzumab: The New Approach of a Well-Known Strategy. Polymers (Basel) 2018; 10:polym10020187. [PMID: 30966223 PMCID: PMC6414888 DOI: 10.3390/polym10020187] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 02/09/2018] [Accepted: 02/12/2018] [Indexed: 11/16/2022] Open
Abstract
The strategy utilizing trastuzumab, a humanized monoclonal antibody against human epidermal growth receptor 2 (HER-2), as a therapeutic agent in HER-2 positive breast cancer therapy seems to have advantage over traditional chemotherapy, especially when given in combination with anticancer drugs. However, the effectiveness of single antibody or antibody conjugated with chemotherapeutics is still far from ideal. Antibody–dendrimer conjugates hold the potential to improve the targeting and release of active substance at the tumor site. In the present study, we developed and synthesized PAMAM dendrimer–trastuzumab conjugates carrying doxorubicin (dox) specifically to cells overexpressing HER-2. 1HNMR, FTIR and RP-HPLC were used to characterize the products and analyze their purity. Toxicity of PAMAM–trastuzumab and PAMAM–dox–trastuzumab conjugates compared with free trastuzumab and doxorubicin towards HER-2 positive (SKBR-3) and negative (MCF-7) human breast cancer cell lines was determined using MTT assay. Furthermore, the cellular uptake and cellular localization were studied by flow cytometry and confocal microscopy, respectively. A cytotoxicity profile of above mentioned compounds indicated that conjugate PAMAM–dox–trastuzumab was more effective when compared to free drug or the conjugate PAMAM–trastuzumab. Moreover, these results reveal that trastuzumab can be used as a targeting agent in PAMAM–dox–trastuzumab conjugate. Therefore PAMAM–dox–trastuzumab conjugate might be an interesting proposition which could lead to improvements in the effectiveness of drug delivery systems for tumors that overexpress HER-2.
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Affiliation(s)
- Monika Marcinkowska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
| | - Ewelina Sobierajska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
| | - Maciej Stanczyk
- Department of Surgical Oncology, Cancer Center, Copernicus Memorial Hospital, 93-509 Lodz, Poland.
| | - Anna Janaszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
| | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-236 Lodz, Poland.
| | - Barbara Klajnert-Maculewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany.
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Nano-carrier enabled drug delivery systems for nose to brain targeting for the treatment of neurodegenerative disorders. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2017.09.022] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Thakkar M, S B. Combating malaria with nanotechnology-based targeted and combinatorial drug delivery strategies. Drug Deliv Transl Res 2017; 6:414-25. [PMID: 27067712 DOI: 10.1007/s13346-016-0290-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Despite the advancement of science, infectious diseases such as malaria remain an ongoing challenge globally. The main reason this disease still remains a menace in many countries around the world is the development of resistance to many of the currently available anti-malarial drugs. While developing new drugs is rather expensive and the prospect of a potent vaccine is still evading our dream of a malaria-free world, one of the feasible options is to package the older drugs in newer ways. For this, nano-sized drug delivery vehicles have been used and are proving to be promising prospects in the way malaria will be treated in the future. Since, monotherapy has given way to combination therapy in malaria treatment, nanotechnology-based delivery carriers enable to encapsulate various drug moieties in the same package, thus avoiding the complications involved in conjugation chemistry to produce hybrid drug molecules. Further, we envisage that using targeted delivery approaches, we may be able to achieve a much better radical cure and curb the side effects associated with the existing drug molecules. Thus, this review will focus on some of the nanotechnology-based combination and targeted therapies and will discuss the possibilities of better therapies that may be developed in the future.
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Affiliation(s)
- Miloni Thakkar
- Department of Biological Sciences, Sunandan Divatia School of Science, NMIMS (Deemed-to-be) University, Vile Parle (W), Mumbai, 400056, India
| | - Brijesh S
- Department of Biological Sciences, Sunandan Divatia School of Science, NMIMS (Deemed-to-be) University, Vile Parle (W), Mumbai, 400056, India.
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Xiao H, Shi X, Chen X. Self-assembled nanocapsules in water: a molecular mechanistic study. Phys Chem Chem Phys 2017; 19:20377-20382. [PMID: 28678264 DOI: 10.1039/c7cp02631e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The self-assembly mechanism of one-end-open carbon nanotubes (CNTs) suspended in an aqueous solution was studied by molecular dynamics simulations. It was shown that two one-end-open CNTs with different diameters can coaxially self-assemble into a nanocapsule. The nanocapsules formed were stable in aqueous solution under ambient conditions, and the pressure inside the nanocapsule was much higher than the ambient pressure due to the van der Waals interactions between the two parts of the nanocapsule. The effects of the normalized radius difference, normalized inter-tube distance and aspect ratio of the CNT pairs were systematically explored. The electric field response of the nanocapsules was studied using ab initio molecular dynamics simulations, which shows that the nanocapsules can be opened by applying an external electric field, due to the polarization of carbon atoms. This discovery not only sheds light on a simple yet robust nanocapsule self-assembly mechanism, but also underpins potential innovations in drug delivery, nano-reactors, etc.
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Affiliation(s)
- Hang Xiao
- Columbia Nanomechanics Research Center, Department of Earth and Environmental Engineering, Columbia University, New York, NY 10027, USA.
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Functional nucleic acids as in vivo metabolite and ion biosensors. Biosens Bioelectron 2017; 94:94-106. [DOI: 10.1016/j.bios.2017.02.030] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 02/20/2017] [Accepted: 02/20/2017] [Indexed: 12/27/2022]
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Conte R, De Luca I, Valentino A, Di Salle A, Calarco A, Riccitiello F, Peluso G. Recent advances in “bioartificial polymeric materials” based nanovectors. PHYSICAL SCIENCES REVIEWS 2017. [DOI: 10.1515/psr-2016-0131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThis chapter analyzes the advantages of the use of bioartificial polymers as carriers and the main strategies used for their design. Despite the enormous progresses in this field, more studies are required for the fully evaluation of these nanovectors in complex organisms and for the characterization of the pharmacodynamic and pharmacokinetic of the loaded drugs. Moreover, progresses in polymer chemistry are introducing a wide range of functionalities in the bioartificial polymeric material (BPM) nanostructures leading to a second generation of bioartificial polymer therapeutics based on novel and heterogeneous architectures with higher molecular weight and predictable structures, in order to achieve greater multivalency and increased loading capacity. Therefore, research on bioartificial polymeric nanovectors is an “on-going” field capable of attracting medical interest.
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Ghosh S, Mondal L, Chakraborty S, Mukherjee B. Early Stage HIV Management and Reduction of Stavudine-Induced Hepatotoxicity in Rats by Experimentally Developed Biodegradable Nanoparticles. AAPS PharmSciTech 2017; 18:697-709. [PMID: 27222026 DOI: 10.1208/s12249-016-0539-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 04/21/2016] [Indexed: 01/12/2023] Open
Abstract
The objectives of this research work were to develop optimized nanoparticulate formulations of poly (d,l-lactic-co-glycolic acid) (PLGA) (85:15) with an anti-AIDS drug stavudine and to evaluate their in-vitro uptake by the macrophages and hepatotoxicity in-vivo. Nanoparticles were prepared by nanoprecipitation method based on a factorial design with varying parameters such as the amounts of polymer and stabilizer used. Physicochemical characterizations such as drug-excipient interaction, surface morphology, particle size, and zeta potential measurements were carried out. The best formulation was selected and tagged with fluorescein isothiocyanate (FITC) for cellular uptake study of the formulation. In-vitro uptake of nanoparticles by macrophages was carried out. Formulation-induced hepatotoxicity was assessed by analyzing some serum hepatotoxic parameters and hepatic histology following 10-day treatment in comparison with the free drug. Nanoparticles exhibited smooth surface with particle size 84-238 nm, high entrapment efficiency (approx 85%), and negative surface charge. Formulations showed a sustained drug release pattern over the study period. In-vitro uptake study by macrophages exhibited a time-dependent profile. In-vivo studies on rats showed improvement in the serum parameters and maintenance of the integrity of the hepatic architecture indicating decreased hepatotoxicity with the formulations as compared to the free drug. The experimental results showed a positive outcome in the development of antiretroviral drug carrier exhibiting sustained drug release, macrophage-targeted delivery characteristics, and having reduced hepatoxicity. This could be beneficial for the management of early stage of HIV infection besides reducing the drug load for effective treatment, thereby offering an attractive option in AIDS therapy.
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A Review of Injectable and Implantable Biomaterials for Treatment and Repair of Soft Tissues in Wound Healing. JOURNAL OF NANOTECHNOLOGY 2017. [DOI: 10.1155/2017/6341710] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The two major topics concerning the development of nanomedicine are drug delivery and tissue engineering. With the advance in nanotechnology, scientists and engineers now have the ability to fabricate functional drug carriers and/or biomaterials that deliver and release drugs locally as well as promote tissue regeneration. In this short review, we address the use of nanotechnology in the fabrication of biomaterials (i.e., nanoparticles and nanofibers) and their therapeutic function in wound healing as dressing materials. Furthermore, we discuss the use of surface nanofeatures to regulate cell adhesion, migration, proliferation, and differentiation, which is a crucial step in wound healing associated with tissue regeneration. Given that nanotechnology-based biomaterials exhibit superior pharmaceutical performance as compared to the traditional medicine, this short review provides current status and future directions of how nanotechnology is and will be used in biomedical field, especially in wound healing.
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Othman R, Vladisavljević GT, Nagy ZK, Holdich RG. Encapsulation and Controlled Release of Rapamycin from Polycaprolactone Nanoparticles Prepared by Membrane Micromixing Combined with Antisolvent Precipitation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:10685-10693. [PMID: 27690454 DOI: 10.1021/acs.langmuir.6b03178] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Rapamycin-loaded polycaprolactone nanoparticles (RAPA-PCL NPs) with a polydispersity index of 0.006-0.073 were fabricated by antisolvent precipitation combined with micromixing using a ringed stainless steel membrane with 10 μm diameter laser-drilled pores. The organic phase composed of 6 g L-1 PCL and 0.6-3.0 g L-1 RAPA in acetone was injected through the membrane at 140 L m-2 h-1 into 0.2 wt % aqueous poly(vinyl alcohol) solution stirred at 1300 rpm, resulting in a Z-average mean of 189-218 nm, a drug encapsulation efficiency of 98.8-98.9%, and a drug loading in the NPs of 9-33%. The encapsulation of RAPA was confirmed by UV-vis spectroscopy, XRD, DSC, and ATR-FTIR. The disappearance of sharp characteristic peaks of crystalline RAPA in the XRD pattern of RAPA-PCL NPs revealed that the drug was molecularly dispersed in the polymer matrix or RAPA and PCL were present in individual amorphous domains. The rate of drug release in pure water was negligible due to low aqueous solubility of RAPA. RAPA-PCL NPs released more than 91% of their drug cargo after 2.5 h in the release medium composed of 0.78-1.5 M of the hydrotropic agent N,N-diethylnicotinamide, 10 vol % ethanol, and 2 vol % Tween 20 in phosphate buffered saline. The dissolution of RAPA was slower when the drug was embedded in the PCL matrix of the NPs than dispersed in the form of pure RAPA nanocrystals.
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Affiliation(s)
- Rahimah Othman
- Department of Chemical Engineering, Loughborough University , Ashby Road, Loughborough, Leicestershire LE11 3TU, U.K
- School of Bioprocess Engineering, Universiti Malaysia Perlis , Kompleks Pusat Pengajian Jejawi 3, 02600 Arau, Perlis, Malaysia
| | - Goran T Vladisavljević
- Department of Chemical Engineering, Loughborough University , Ashby Road, Loughborough, Leicestershire LE11 3TU, U.K
| | - Zoltan K Nagy
- Department of Chemical Engineering, Loughborough University , Ashby Road, Loughborough, Leicestershire LE11 3TU, U.K
- School of Chemical Engineering, Purdue University , West Lafayette, Indiana 47907-2100, United States
| | - R G Holdich
- Department of Chemical Engineering, Loughborough University , Ashby Road, Loughborough, Leicestershire LE11 3TU, U.K
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Na JH, Koo H, Lee S, Han SJ, Lee KE, Kim S, Lee H, Lee S, Choi K, Kwon IC, Kim K. Precise Targeting of Liver Tumor Using Glycol Chitosan Nanoparticles: Mechanisms, Key Factors, and Their Implications. Mol Pharm 2016; 13:3700-3711. [DOI: 10.1021/acs.molpharmaceut.6b00507] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jin Hee Na
- Center for Theragnosis,
Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 North Caroline Street, Baltimore, Maryland 21287, United States
- The Center
for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, Maryland 21231, United States
| | - Heebeom Koo
- Department of Medical Lifescience, College
of Medicine, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 06591, Republic of Korea
| | - Sangmin Lee
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 North Caroline Street, Baltimore, Maryland 21287, United States
- The Center
for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, Maryland 21231, United States
| | - Seung Jin Han
- Center for Theragnosis,
Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - Kyung Eun Lee
- Advanced Analysis Center, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea
| | - Sunjin Kim
- Department of Chemistry and Institute for NanoCentury
and BioCentury, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
| | - Haeshin Lee
- Department of Chemistry and Institute for NanoCentury
and BioCentury, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
| | - Seulki Lee
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 North Caroline Street, Baltimore, Maryland 21287, United States
- The Center
for Nanomedicine, The Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 North Broadway, Baltimore, Maryland 21231, United States
| | - Kuiwon Choi
- Korea Institute of Science and Technology Europe (KIST-Europe) Forschungsgesellschaft mbH, Campus E7.1, 66123 Saarbrücken, Germany
| | - Ick Chan Kwon
- Center for Theragnosis,
Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea
- KU-KIST School, Korea University, 1 Anam-dong, Seongbuk-gu, Seoul 136-701, Republic of Korea
| | - Kwangmeyung Kim
- Center for Theragnosis,
Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea
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Khare V, Singh A, Mahajan G, Alam N, Kour S, Gupta M, Kumar A, Singh G, Singh SK, Saxena AK, Mondhe DM, Gupta PN. Long-circulatory nanoparticles for gemcitabine delivery: Development and investigation of pharmacokinetics and in-vivo anticancer efficacy. Eur J Pharm Sci 2016; 92:183-93. [DOI: 10.1016/j.ejps.2016.07.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 06/14/2016] [Accepted: 07/08/2016] [Indexed: 02/06/2023]
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Sukhbir S, Yashpal S, Sandeep A. Development and statistical optimization of nefopam hydrochloride loaded nanospheres for neuropathic pain using Box-Behnken design. Saudi Pharm J 2016; 24:588-599. [PMID: 27752232 PMCID: PMC5059834 DOI: 10.1016/j.jsps.2015.03.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 03/15/2015] [Indexed: 01/19/2023] Open
Abstract
Nefopam hydrochloride (NFH) is a non-opioid centrally acting analgesic drug used to treat chronic condition such as neuropathic pain. In current research, sustained release nefopam hydrochloride loaded nanospheres (NFH-NS) were auspiciously synthesized using binary mixture of eudragit RL 100 and RS 100 with sorbitan monooleate as surfactant by quasi solvent diffusion technique and optimized by 35 Box-Behnken designs to evaluate the effects of process and formulation variables. Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetric (DSC) and X-ray diffraction (XRD) affirmed absence of drug-polymer incompatibility and confirmed formation of nanospheres. Desirability function scrutinized by design-expert software for optimized formulation was 0.920. Optimized batch of NFH-NS had mean particle size 328.36 nm ± 2.23, % entrapment efficiency (% EE) 84.97 ± 1.23, % process yield 83.60 ± 1.31 and % drug loading (% DL) 21.41 ± 0.89. Dynamic light scattering (DLS), zeta potential analysis and scanning electron microscopy (SEM) validated size, charge and shape of nanospheres, respectively. In-vitro drug release study revealed biphasic release pattern from optimized nanospheres. Korsmeyer Peppas found excellent kinetics model with release exponent less than 0.45. Chronic constricted injury (CCI) model of optimized NFH-NS in Wistar rats produced significant difference in neuropathic pain behavior (p < 0.05) as compared to free NFH over 10 h indicating sustained action. Long term and accelerated stability testing of optimized NFH-NS revealed degradation rate constant 1.695 × 10-4 and shelf-life 621 days at 25 ± 2 °C/60% ± 5% RH.
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Affiliation(s)
- S. Sukhbir
- Department of Research, Innovation and Consultancy, Punjab Technical University, Jalandhar-Kapurthala Highway, Kapurthala 144603, Punjab, India
- Chitkara College of Pharmacy, Chitkara University, Chandigarh Patiala National-Highway (NH-64), Rajpura, Patiala 140401, Punjab, India
| | - S. Yashpal
- Lord Shiva College of Pharmacy, Sirsa 125055, Haryana, India
| | - A. Sandeep
- Chitkara College of Pharmacy, Chitkara University, Chandigarh Patiala National-Highway (NH-64), Rajpura, Patiala 140401, Punjab, India
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Chen L, Liu X, Wong KH. Novel nanoparticle materials for drug/food delivery-polysaccharides. PHYSICAL SCIENCES REVIEWS 2016. [DOI: 10.1515/psr-2016-0053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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50
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In Vitro Activity of Melaleuca alternifolia (Tea Tree) in Its Free Oil and Nanoemulsion Formulations Against Pythium insidiosum. Mycopathologia 2016; 181:865-869. [DOI: 10.1007/s11046-016-0051-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 08/09/2016] [Indexed: 10/21/2022]
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