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Ngema L, Adeyemi SA, Marimuthu T, Ubanako PN, Ngwa W, Choonara YE. Short Antiangiogenic MMP-2 Peptide-Decorated Conjugated Linoleic Acid-Coated SPIONs for Targeted Paclitaxel Delivery in an A549 Cell Xenograft Mouse Tumor Model. ACS OMEGA 2024; 9:700-713. [PMID: 38222506 PMCID: PMC10785664 DOI: 10.1021/acsomega.3c06489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/28/2023] [Accepted: 10/31/2023] [Indexed: 01/16/2024]
Abstract
The design of targeted antiangiogenic nanovectors for the delivery of anticancer drugs presents a viable approach for effective management of nonsmall-cell lung carcinoma (NSCLC). Herein, we report on the fabrication of a targeted delivery nanosystem for paclitaxel (PTX) functionalized with a short antimatrix metalloproteinase 2 (MMP-2) CTT peptide for selective MMP-2 targeting and effective antitumor activity in NSCLC. The fabrication of the targeted nanosystem (CLA-coated PTX-SPIONs@CTT) involved coating of superparamagnetic iron-oxide nanoparticles (SPIONs) with conjugated linoleic acid (CLA) via chemisorption, onto which PTX was adsorbed, and subsequent surface functionalization with carboxylic acid groups for conjugation of the CTT peptide. CLA-coated PTX SPIONs@CTT had a mean particle size of 99.4 nm and a PTX loading efficiency of ∼98.5%. The nanosystem exhibited a site-specific in vitro PTX release and a marked antiproliferative action on lung adenocarcinoma cells. The CTT-functionalized nanosystem significantly inhibited MMP-2 secretion by almost 70% from endothelial cells, indicating specific anti-MMP-2 activity. Treatment of tumor-bearing mice with subcutaneous injection of the CTT-functionalized nanosystem resulted in 69.7% tumor inhibition rate, and the administration of the nanosystem subcutaneously prolonged the half-life of PTX and circulation time in vivo. As such, CLA-coated PTX-SPIONs@CTT presents with potential for application as a targeted nanomedicine in NSCLC management.
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Affiliation(s)
- Lindokuhle
M. Ngema
- Wits
Advanced Drug Delivery Platform Research Unit, Department of Pharmacy
and Pharmacology, School of Therapeutic Sciences, Faculty of Health
Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa
| | - Samson A. Adeyemi
- Wits
Advanced Drug Delivery Platform Research Unit, Department of Pharmacy
and Pharmacology, School of Therapeutic Sciences, Faculty of Health
Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa
| | - Thashree Marimuthu
- Wits
Advanced Drug Delivery Platform Research Unit, Department of Pharmacy
and Pharmacology, School of Therapeutic Sciences, Faculty of Health
Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa
| | - Philemon N. Ubanako
- Wits
Advanced Drug Delivery Platform Research Unit, Department of Pharmacy
and Pharmacology, School of Therapeutic Sciences, Faculty of Health
Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa
| | - Wilfred Ngwa
- Sidney
Kimmel Comprehensive Cancer Center, Johns
Hopkins Medicine, Baltimore, Maryland 21218, United States
| | - Yahya E. Choonara
- Wits
Advanced Drug Delivery Platform Research Unit, Department of Pharmacy
and Pharmacology, School of Therapeutic Sciences, Faculty of Health
Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa
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2
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Gopinath P, Oviya RP, Gopisetty G. Oestrogen receptor-independent actions of oestrogen in cancer. Mol Biol Rep 2023; 50:9497-9509. [PMID: 37731028 DOI: 10.1007/s11033-023-08793-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 08/30/2023] [Indexed: 09/22/2023]
Abstract
Oestrogen, the primary female sex hormone, plays a significant role in tumourigenesis. The major pathway for oestrogen is via binding to its receptor [oestrogen receptor (ERα or β)], followed by nuclear translocation and transcriptional regulation of target genes. Almost 70% of breast tumours are ER + , and endocrine therapies with selective ER modulators (tamoxifen) have been successfully applied. As many as 25% of tamoxifen-treated patients experience disease relapse within 5 years upon completion of chemotherapy. In such cases, the ER-independent oestrogen actions provide a plausible explanation for the resistance, as well as expands the existing horizon of available drug targets. ER-independent oestrogen signalling occurs via one of the following pathways: signalling through membrane receptors, oxidative catabolism giving rise to genotoxic metabolites, effects on mitochondria and redox balance, and induction of inflammatory cytokines. The current review focuses on the non-classical oestrogen signalling, its role in cancer, and its clinical significance.
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Affiliation(s)
- Prarthana Gopinath
- Department of Molecular Oncology, Cancer Institute (WIA), Adyar, Chennai, 600020, India
| | - Revathi Paramasivam Oviya
- Department of Biotechnology, School of Bio and Chemical Engineering, Sathyabama Institute of Science and Technology, Chennai, 600119, India
| | - Gopal Gopisetty
- Department of Molecular Oncology, Cancer Institute (WIA), Adyar, Chennai, 600020, India.
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Ngema LM, Adeyemi SA, Marimuthu T, Ubanako PN, Ngwa W, Choonara YE. Surface Immobilization of Anti-VEGF Peptide on SPIONs for Antiangiogenic and Targeted Delivery of Paclitaxel in Non-Small-Cell Lung Carcinoma. ACS APPLIED BIO MATERIALS 2023. [PMID: 37384895 PMCID: PMC10354746 DOI: 10.1021/acsabm.3c00224] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
A design has been established for the surface decoration of superparamagnetic iron oxide nanoparticles (SPIONs) with anti-vascular endothelial growth factor peptide, HRH, to formulate a targeted paclitaxel (PTX) delivery nanosystem with notable tumor targetability and antiangiogenic activity. The design methodology included (i) tandem surface functionalization via coupling reactions, (ii) pertinent physicochemical characterization, (iii) in vitro assessment of drug release, anti-proliferative activity, and quantification of vascular endothelial growth factor A (VEGF-A) levels, and (iv) in vivo testing using a lung tumor xenograft mouse model. Formulated CLA-coated PTX-SPIONs@HRH depicted a size and surface charge of 108.5 ± 3.5 nm and -30.4 ± 2.3 mV, respectively, and a quasi-spherical shape relative to pristine SPIONs. Fourier transform infrared (FTIR) analysis and estimation of free carboxylic groups supported the preparation of the CLA-coated PTX-SPIONs@HRH. CLA-coated PTX-SPIONs@HRH exhibited high PTX loading efficiency (98.5%) and sustained release in vitro, with a marked dose dependent anti-proliferative activity in A549 lung adenocarcinoma cells, complimented by an enhanced cellular uptake. CLA-coated PTX-SPIONs@HRH significantly reduced secretion levels of VEGF-A in human dermal microvascular endothelial cells from 46.9 to 35.6 pg/mL compared to untreated control. A 76.6% tumor regression was recorded in a lung tumor xenograft mouse model following intervention with CLA-coated PTX-SPIONs@HRH, demonstrating tumor targetability and angiogenesis inhibition. CLA-coated PTX-SPIONs@HRH enhanced the half-life of PTX by almost 2-folds and demonstrated a prolonged PTX plasma circulation time from a subcutaneous injection (SC). Thus, it is suggested that CLA-coated PTX-SPIONs@HRH could provide a potential effective treatment modality for non-small-cell lung carcinoma as a nanomedicine.
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Affiliation(s)
- Lindokuhle M Ngema
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa
| | - Samson A Adeyemi
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa
| | - Thashree Marimuthu
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa
| | - Philemon N Ubanako
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa
| | - Wilfred Ngwa
- Sidney Kimmel Comprehensive Cancer Center, School of Medicine, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Yahya E Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa
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Cunningham C, Bolcaen J, Bisio A, Genis A, Strijdom H, Vandevoorde C. Recombinant Endostatin as a Potential Radiosensitizer in the Treatment of Non-Small Cell Lung Cancer. Pharmaceuticals (Basel) 2023; 16:219. [PMID: 37259367 PMCID: PMC9961924 DOI: 10.3390/ph16020219] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/22/2023] [Accepted: 01/24/2023] [Indexed: 11/03/2023] Open
Abstract
Non-small cell lung cancer (NSCLC) is the most prevalent type of lung cancer, which is the leading cause of cancer-related deaths worldwide. Over the past decades, tumour angiogenesis has been intensely studied in the treatment of NSCLC due to its fundamental role in cancer progression. Several anti-angiogenic drugs, such as recombinant endostatin (RE), have been evaluated in several preclinical and clinical trials, with mixed and often disappointing results. However, there is currently an emerging interest in RE due to its ability to create a vascular normalization window, which could further improve treatment efficacy of the standard NSCLC treatment. This review provides an overview of preclinical and clinical studies that combined RE and radiotherapy for NSCLC treatment. Furthermore, it highlights the ongoing challenges that have to be overcome in order to maximize the benefit; as well as the potential advantage of combinations with particle therapy and immunotherapy, which are rapidly gaining momentum in the treatment landscape of NSCLC. Different angiogenic and immunosuppressive effects are observed between particle therapy and conventional X-ray radiotherapy. The combination of RE, particle therapy and immunotherapy presents a promising future therapeutic triad for NSCLC.
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Affiliation(s)
- Charnay Cunningham
- Centre for Cardio-Metabolic Research in Africa (CARMA), Division of Medical Physiology, Stellenbosch University, Cape Town 7602, South Africa
- Radiation Biophysics Division, SSC Laboratory, NRF Ithemba LABS, Cape Town 7131, South Africa
| | - Julie Bolcaen
- Radiation Biophysics Division, SSC Laboratory, NRF Ithemba LABS, Cape Town 7131, South Africa
| | - Alessandra Bisio
- Department of Cellular, Computational and Integrative Biology—CIBIO, University of Trento, 38123 Trento, Italy
| | - Amanda Genis
- Centre for Cardio-Metabolic Research in Africa (CARMA), Division of Medical Physiology, Stellenbosch University, Cape Town 7602, South Africa
| | - Hans Strijdom
- Centre for Cardio-Metabolic Research in Africa (CARMA), Division of Medical Physiology, Stellenbosch University, Cape Town 7602, South Africa
| | - Charlot Vandevoorde
- Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung, Planckstr. 1, 64291 Darmstadt, Germany
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Ogunjobi JK, Adewale AI, Adeyemi SA. Cellulose nanocrystals from Siam weed: Synthesis and physicochemical characterization. Heliyon 2023; 9:e13104. [PMID: 36747922 PMCID: PMC9898745 DOI: 10.1016/j.heliyon.2023.e13104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 01/13/2023] [Accepted: 01/16/2023] [Indexed: 01/21/2023] Open
Abstract
The use of biomass for the development of environmentally friendly and industrially useful materials is still attracting global interest. Herein, cellulose nanocrystals were prepared from Siam weed. The production steps involved dewaxing the biomass sample, bleaching treatment, alkali treatment and acid hydrolysis. The resulting cellulose nanocrystals were characterized using Fourier transformed infrared (FTIR) spectroscopy, X-ray diffraction (XRD) spectroscopy, thermo-gravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and dynamic light scattering (DLS) technique. Chemical composition results showed that Siam weed contained 39.6% cellulose, 27.5% hemicellulose, 28.7% lignin and 4.2% extractive. FTIR spectrum confirmed the presence of cellulose and absence of lignin and hemicellulose while XRD analysis revealed that the cellulose nanocrystals have crystallinity index of 66.2% and particle size of 2.2 nm. TGA revealed that thermal stability of raw Siam weed is lower than that of its cellulose nanocrystals due to the presence of the non-cellulosic component with lower temperature of degradation. SEM revealed that degradation of cellulosic chain had occurred. TEM confirmed that the crystal size is in the nanoscale with an average size <100 nm. DLS data revealed a nanocellulose with an average hydrodynamic size of 213 nm and a zeta potential at -9.57 mV.
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Affiliation(s)
- Joseph K. Ogunjobi
- Department of Chemistry, Federal University of Technology, PMB 704, Akure, Nigeria,Corresponding author.
| | - Adetola I. Adewale
- Department of Chemistry, Federal University of Technology, PMB 704, Akure, Nigeria
| | - Samson A. Adeyemi
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Science, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown, 2193, South Africa
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Targeted Cancer Therapy via pH-Functionalized Nanoparticles: A Scoping Review of Methods and Outcomes. Gels 2022; 8:gels8040232. [PMID: 35448133 PMCID: PMC9030880 DOI: 10.3390/gels8040232] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/03/2022] [Accepted: 04/06/2022] [Indexed: 02/04/2023] Open
Abstract
(1) Background: In recent years, several studies have described various and heterogenous methods to sensitize nanoparticles (NPs) to pH changes; therefore, in this current scoping review, we aimed to map current protocols for pH functionalization of NPs and analyze the outcomes of drug-loaded pH-functionalized NPs (pH-NPs) when delivered in vivo in tumoral tissue. (2) Methods: A systematic search of the PubMed database was performed for all published studies relating to in vivo models of anti-tumor drug delivery via pH-responsive NPs. Data on the type of NPs, the pH sensitization method, the in vivo model, the tumor cell line, the type and name of drug for targeted therapy, the type of in vivo imaging, and the method of delivery and outcomes were extracted in a separate database. (3) Results: One hundred and twenty eligible manuscripts were included. Interestingly, 45.8% of studies (n = 55) used polymers to construct nanoparticles, while others used other types, i.e., mesoporous silica (n = 15), metal (n = 8), lipids (n = 12), etc. The mean acidic pH value used in the current literature is 5.7. When exposed to in vitro acidic environment, without exception, pH-NPs released drugs inversely proportional to the pH value. pH-NPs showed an increase in tumor regression compared to controls, suggesting better targeted drug release. (4) Conclusions: pH-NPs were shown to improve drug delivery and enhance antitumoral effects in various experimental malignant cell lines.
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Ngema LM, Adeyemi SA, Marimuthu T, Ubanako P, Wamwangi D, Choonara YE. Synthesis of Novel Conjugated Linoleic Acid (CLA)-Coated Superparamagnetic Iron Oxide Nanoparticles (SPIONs) for the Delivery of Paclitaxel with Enhanced In Vitro Anti-Proliferative Activity on A549 Lung Cancer Cells. Pharmaceutics 2022; 14:pharmaceutics14040829. [PMID: 35456663 PMCID: PMC9031641 DOI: 10.3390/pharmaceutics14040829] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 03/31/2022] [Accepted: 04/06/2022] [Indexed: 01/06/2023] Open
Abstract
The application of Superparamagnetic Iron Oxide Nanoparticles (SPIONs) as a nanomedicine for Non-Small Cell Lung Carcinoma (NSCLC) can provide effective delivery of anticancer drugs with minimal side-effects. SPIONs have the flexibility to be modified to achieve enhanced oading of hydrophobic anticancer drugs such as paclitaxel (PTX). The purpose of this study was to synthesize novel trans-10, cis-12 conjugated linoleic acid (CLA)-coated SPIONs loaded with PTX to enhance the anti-proliferative activity of PTX. CLA-coated PTX-SPIONs with a particle size and zeta potential of 96.5 ± 0.6 nm and −27.3 ± 1.9 mV, respectively, were synthesized. The superparamagnetism of the CLA-coated PTX-SPIONs was confirmed, with saturation magnetization of 60 emu/g and 29 Oe coercivity. CLA-coated PTX-SPIONs had a drug loading efficiency of 98.5% and demonstrated sustained site-specific in vitro release of PTX over 24 h (i.e., 94% at pH 6.8 mimicking the tumor microenvironment). Enhanced anti-proliferative activity was also observed with the CLA-coated PTX-SPIONs against a lung adenocarcinoma (A549) cell line after 72 h, with a recorded cell viability of 17.1%. The CLA-coated PTX-SPIONs demonstrated enhanced suppression of A549 cell proliferation compared to pristine PTX, thus suggesting potential application of the nanomedicine as an effective site-specific delivery system for enhanced therapeutic activity in NSCLC therapy.
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Affiliation(s)
- Lindokuhle M. Ngema
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa; (L.M.N.); (S.A.A.); (T.M.); (P.U.)
| | - Samson A. Adeyemi
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa; (L.M.N.); (S.A.A.); (T.M.); (P.U.)
| | - Thashree Marimuthu
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa; (L.M.N.); (S.A.A.); (T.M.); (P.U.)
| | - Philemon Ubanako
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa; (L.M.N.); (S.A.A.); (T.M.); (P.U.)
| | - Daniel Wamwangi
- School of Physics, Materials Physics Research Institute, University of the Witwatersrand, Private Bag 3, WITS, Johannesburg 2050, South Africa;
| | - Yahya E. Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa; (L.M.N.); (S.A.A.); (T.M.); (P.U.)
- Correspondence: ; Tel.: +27-11-717-2052
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In Vitro and In Vivo Evaluation of a Cyclic LyP-1-Modified Nanosystem for Targeted Endostatin Delivery in a KYSE-30 Cell Xenograft Athymic Nude Mice Model. Pharmaceuticals (Basel) 2022; 15:ph15030353. [PMID: 35337150 PMCID: PMC8955112 DOI: 10.3390/ph15030353] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/09/2022] [Accepted: 03/10/2022] [Indexed: 02/01/2023] Open
Abstract
This work investigated the use of LyP-1 as a homing peptide for p32 receptor targeting on the surface of an endostatin (ENT)-loaded chitosan-grafted nanosystem intended for intracellular delivery of ENT and mitochondrial targeting in a squamous cell carcinoma (SCC) cell line (KYSE-30) model. The angiogenic factors for VEGF-C and MMP2 were assessed with in vivo evaluation of the nanosystem upon ENT release and tumor necrosis in nude mice with a KYSE-30 cell xenograft. The LyP-1-modified nanosystem revealed a three-fold decrease in proliferation at 1000 µg/mL compared with the control and facilitated receptor-mediated cellular uptake and internalization. In addition, targeting of the Lyp-1-functionalized nanosystem to mitochondrial and nuclear proteins in vitro and in vivo was achieved. Up to 60% inhibition of KYSE-30 cell migration was observed and the expressions of VEGF-C and MMP-2 as angiogenic markers were reduced 3- and 2-fold, respectively. A marked reduction in tumor mass was recorded (43.25%) with the control, a 41.36% decrease with the nanoparticles and a 61.01% reduction with the LyP-1-modified nanosystem following treatment in mice. The LyP-1-functionalized nanosystem targeted tumor lymphatics, instigated nuclear rupture and mitochondrial distortion, and decreased cell proliferation and migration with inhibition of VEGF-C and MMP2 expression.
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Recent patents on water-soluble polysaccharides for advanced drug delivery, tissue engineering and regenerative medicine. Pharm Pat Anal 2022; 11:75-88. [PMID: 35758101 DOI: 10.4155/ppa-2022-0004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Water-soluble polysaccharides have unique properties and have found wide application in the design of advanced drug-delivery systems and the biofabrication of tissue engineered scaffolds in regenerative medicine. This patent review provides a concise incursion into the mechanisms that define the key properties of water-soluble polysaccharides that have found embodiment within active patents recently granted (2020-2021). In addition, the relationship between their solubility and structural features such as molecular weight, ionic profile, degree of branching/crosslinking, side-chain flexibility and the presence/modification of functional groups that have been discusses. An assimilation of patents in which water-soluble polysaccharides are central to the design of therapeutic interventions applied to specialized treatments in oncology, infectious diseases and neuronal disorders is provided.
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Ngema LM, Adeyemi SA, Marimuthu T, Choonara YE. A review on engineered magnetic nanoparticles in Non-Small-Cell lung carcinoma targeted therapy. Int J Pharm 2021; 606:120870. [PMID: 34245844 DOI: 10.1016/j.ijpharm.2021.120870] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/25/2021] [Accepted: 07/05/2021] [Indexed: 02/07/2023]
Abstract
There are growing appeals forthe design of efficacious treatment options for non-small-cell lung carcinoma (NSCLC) as it accrues to ~ 85% cases of lung cancer. Although platinum-based doublet chemotherapy has been the main therapeutic intervention in NSCLC management, this leads to myriad of problems including intolerability to the doublet regimens and detrimental side effects due to high doses. A new approach is therefore needed and warrants the design of targeted drug delivery systems that can halt tumor proliferation and metastasis by targeting key molecules, while exhibiting minimal side effects and toxicity. This review aims to explore the rational design of magnetic nanoparticles for the development of tumor-targeting systems for NSCLC. In the review, we explore the anticancer merits of conjugated linoleic acid (CLA) and provide a concise incursion into its application for the invention of functionalized magnetic nanoparticles in the targeted treatment of NSCLC. Recent nanoparticle-based targeted chemotherapies for targeting angiogenesis biomarkers in NSCLC will also be reviewed to further highlight versatility of magnetic nanoparticles. These developments through molecular tuning at the nanoscale and supported by comprehensive pre-clinical studies could lead to the establishment of precise nanosystems for tumor-homing cancer therapy.
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Affiliation(s)
- Lindokuhle M Ngema
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa
| | - Samson A Adeyemi
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa
| | - Thashree Marimuthu
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa
| | - Yahya E Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
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Preparation, Biosafety, and Cytotoxicity Studies of a Newly Tumor-Microenvironment-Responsive Biodegradable Mesoporous Silica Nanosystem Based on Multimodal and Synergistic Treatment. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:7152173. [PMID: 33488930 PMCID: PMC7803173 DOI: 10.1155/2020/7152173] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 07/28/2020] [Indexed: 12/25/2022]
Abstract
Patients with triple negative breast cancer (TNBC) often suffer relapse, and clinical improvements offered by radiotherapy and chemotherapy are modest. Although targeted therapy and immunotherapy have been a topic of significant research in recent years, scientific developments have not yet translated to significant improvements for patients with TNBC. In view of these current clinical treatment shortcomings, we designed a silica nanosystem (SNS) with Nano-Ag as the core and a complex of MnO2 and doxorubicin (Dox) as the surrounding mesoporous silica shell. This system was coated with anti-PD-L1 to target the PD-L1 receptor, which is highly expressed on the surface of tumor cells. MnO2 itself has been shown to act as chemodynamic therapy (CDT), and Dox is cytotoxic. Thus, the full SNS system presents a multimodal, potentially synergistic strategy for the treatment of TNBC. Given potential interest in the clinical translation of SNS, the biological safety and antitumor activity of SNS were evaluated in a series of studies that included physicochemical characterization, particle stability, blood compatibility, and cytotoxicity. We found that the particle size and zeta potential of SNS were 94.6 nm and -22.1 mV, respectively. Ultraviolet spectrum analysis showed that Nano-Ag, Dox, and MnO2 were successfully loaded into SNS, and the drug loading ratio of Dox was about 10.2%. Stability studies found that the particle size of SNS did not change in different solutions. Hemolysis tests showed that SNS, at levels far exceeding the anticipated physiologic concentrations, did not induce red blood cell lysis. Further in vitro and in vivo experiments found that SNS did not activate platelets or cause coagulopathy and had no significant effects on the total number of blood cells or hepatorenal function. Cytotoxicity experiments suggested that SNS significantly inhibited the growth of tumor cells by damaging cell membranes, increasing intracellular ROS levels, inhibiting the release of TGF-β1 cytokines by macrophages, and inhibiting intracellular protein synthesis. In general, SNS appeared to have favorable biosafety and antitumor effects and may represent an attractive new therapeutic approach for the treatment of TNBC.
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