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Eke Z, Örgül D, Varan G, Erdoğar N. In-vitro and Ex-vivo Evaluation of Chitosan Gel Containing Metformin Loaded Polymeric Nanoparticles for Topical Treatment of Melanoma. Drug Dev Ind Pharm 2024:1-17. [PMID: 38916971 DOI: 10.1080/03639045.2024.2372290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 06/18/2024] [Indexed: 06/27/2024]
Abstract
ObjectiveThe purpose of this study was to prepare and evaluate chitosan (CS) gel containing metformin (MET) loaded polycaprolactone (PCL) nanoparticles (NPs) for topical treatment of melanoma.SignificanceTopical administration of MET-PCL NPs-CS gel improves penetration of drug, decrease side effects and increase efficacy of treatment.MethodsMET-PCL nanoparticles were prepared by double emulsion method. Particle size, charge, encapsulation efficiency, release and morphology were evaluated. MET-PCL NPs-CS gel formulation were characterized in terms of organoleptic properties, pH, gelling time, viscosity, spreadability, release and morphology. Cytotoxicity was performed on B16F10 cells. Ex vivo permeability were done with pig skin.ResultsThe size, charge and encapsulation efficiency were found to be 180 ± 10 nm, -11.4 mV and 93%. SEM images showed that nanoparticles were spherical and smooth. An initial burst release followed by a slower release was observed. MET-PCL NPs-CS gel was found to be transparent. The pH was 4.9 ± 0.05. The gelation time was 1.6 ± 0.2 min. The viscosity results confirm pseudoplastic behaviour of gel. The spreadability by % area was 392 ± 6.4 cm. The images showed that gelling network of CS gel was composed of suspended nanoparticles. The viscosity was between 554-3503 cP. Met-PCL NPs-CS gel showed prolonged release up to 72 h. On B16F10 cells, gel showed higher cytotoxicity compared to MET solution. MET-PCL NPs-CS gel had 2-fold higher permeability in pig skin compared with Met-CS gel.ConclusionsTopical administration of Met-PCL NPs-CS gel into the skin resulted in improved dermal penetration and this promising approach may be of value in effective treatment of melanoma and other skin cancers.
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Affiliation(s)
- Ziyneti Eke
- Hacettepe University Faculty of Pharmacy, Department of Pharmaceutical Technology, Ankara, Turkey
| | - Dilara Örgül
- Selçuk University Faculty of Pharmacy, Department of Pharmaceutical Technology, Konya, Turkey
| | - Gamze Varan
- Hacettepe University Vaccine Institute, Department of Vaccine Technology, Ankara, Turkey
| | - Nazlı Erdoğar
- Hacettepe University Faculty of Pharmacy, Department of Pharmaceutical Technology, Ankara, Turkey
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Li M, Gan J, Xu X, Zhang S, Li Y, Bian L, Dong Z. Preparation, characterisation and in vitro anti-inflammatory activity of Baicalin microsponges. Heliyon 2024; 10:e29151. [PMID: 38617936 PMCID: PMC11015413 DOI: 10.1016/j.heliyon.2024.e29151] [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: 02/02/2024] [Revised: 03/25/2024] [Accepted: 04/02/2024] [Indexed: 04/16/2024] Open
Abstract
Baicalin, a flavonoid extracted from traditional Chinese medicine, Scutellaria baicalensis has significant anti-inflammatory effects. Microsponges are drug delivery systems that improve drug stability and slow the release rate. The combination of baicalin and the microsponges produced a new and stable system for its delivery, resulting in a novel formulation of baicalin. Baicalin microsponges (BM) were prepared using the quasi-emulsion solvent diffusion method. Effects of the mass ratio of the polymer (ethylcellulose) to baicalin, the concentration of the emulsifier polyvinyl alcohol (PVA), the stirring speed on the encapsulation efficiency (EE), and yield of the microsponges were investigated by combining the one-factor test and Box-Behnken design (BBD). The preparation process was standardised using 2.61:1 mass ratio of ethyl cellulose to baicalin, 2.17% concentration of PVA, with stirring at 794 rpm. Optimised BM formulations were evaluated for the parameters of EE (54.06 ± 3.02)% and yield of (70.37 ± 2.41)%, transmission electron microscopy (TEM), and in vitro cell evaluation. Results of the in vitro anti-inflammatory assay showed that baicalin microsponges-pretreated-lipopolysaccharide (LPS)-induced RAW264.7, mouse macrophages showed reduced inflammatory response, similar to that seen in baicalin-treated macrophages.
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Affiliation(s)
- Miao Li
- School of Pharmacy, Jiangsu Ocean University, Lianyungang, 222005, PR China
- Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Lianyungang, 222005, PR China
| | - Jiajie Gan
- School of Pharmacy, Jiangsu Ocean University, Lianyungang, 222005, PR China
- Jiangsu Marine Pharmaceutical Resources Development Engineering Research Center, Lianyungang, 222005, PR China
| | - Xuhui Xu
- School of Pharmacy, Jiangsu Ocean University, Lianyungang, 222005, PR China
- Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Lianyungang, 222005, PR China
| | - Shuai Zhang
- School of Pharmacy, Jiangsu Ocean University, Lianyungang, 222005, PR China
- Jiangsu Marine Pharmaceutical Resources Development Engineering Research Center, Lianyungang, 222005, PR China
| | - Yuanyuan Li
- School of Pharmacy, Jiangsu Ocean University, Lianyungang, 222005, PR China
| | - Le Bian
- School of Pharmacy, Jiangsu Ocean University, Lianyungang, 222005, PR China
- Jiangsu Marine Pharmaceutical Resources Development Engineering Research Center, Lianyungang, 222005, PR China
| | - Zibo Dong
- School of Pharmacy, Jiangsu Ocean University, Lianyungang, 222005, PR China
- Jiangsu Key Laboratory of Marine Pharmaceutical Compound Screening, Lianyungang, 222005, PR China
- Jiangsu Marine Pharmaceutical Resources Development Engineering Research Center, Lianyungang, 222005, PR China
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Ding J, Su J, Luo B, Ding L. Preparation and Evaluation of Folate Modified PEG-PLLA Nanoparticles Loaded with Lycorine for Glioma Treatment. Molecules 2024; 29:1081. [PMID: 38474593 DOI: 10.3390/molecules29051081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/19/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
Lycorine is a kind of natural active ingredient with a strong antitumor effect. In this study, folate ligand-conjugated polyethylene glycol-block-poly(l-lactide) (PEG-PLLA) nanoparticles (FA-PEG-PLLA NPs) were designed to deliver lycorine to enhance its anti-glioma activity. The successful preparation of the FA-PEG-PLLA polymer was confirmed by 1H-NMR, FT-IR, XRD, TGA, and DSC. The optimal formulation for LYC@FA-PEG-PLLA NPs was determined by response surface analysis as follows: sodium dodecyl sulfate (SDS) of 1%, carrier material of 0.03 g, organic phase volume of 3 mL, and ultrasonic power of 20%. The LYC@FA-PEG-PLLA NPs exhibited an encapsulation efficiency of 83.58% and a particle size of 49.71 nm, demonstrating good stability. Hemolysis experiments, MTT assays, and cell scratch assays revealed excellent biocompatibility of FA-PEG-PLLA and superior anti-glioma activity of LYC@FA-PEG-PLLA NPs compared to the raw drug. Additionally, cell apoptosis assays, ROS experiments, and western blot analysis demonstrated that LYC@FA-PEG-PLLA NPs contributed to cell apoptosis by inducing ROS generation and increasing the expression of NF-κB inhibitory protein IκBα. These results suggested that LYC@FA-PEG-PLLA NPs hold promise for glioma treatment.
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Affiliation(s)
- Jieqiong Ding
- Department of Physiology, School of Basic Medical Sciences, Hubei University of Science and Technology, Xianning 437100, China
| | - Jie Su
- Department of Pharmaceutics, School of Pharmacy, Hubei University of Science and Technology, Xianning 437100, China
| | - Binhua Luo
- Department of Pharmaceutics, School of Pharmacy, Hubei University of Science and Technology, Xianning 437100, China
| | - Liqiong Ding
- Department of Pharmaceutics, School of Pharmacy, Hubei University of Science and Technology, Xianning 437100, China
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Aboelenin AM, El-Mowafy M, Saleh NM, Shaaban MI, Barwa R. Ciprofloxacin- and levofloxacin-loaded nanoparticles efficiently suppressed fluoroquinolone resistance and biofilm formation in Acinetobacter baumannii. Sci Rep 2024; 14:3125. [PMID: 38326515 PMCID: PMC10850473 DOI: 10.1038/s41598-024-53441-1] [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: 07/23/2023] [Accepted: 01/31/2024] [Indexed: 02/09/2024] Open
Abstract
The spread of fluoroquinolone (FQ) resistance in Acinetobacter baumannii represents a critical health threat. This study aims to overcome FQ resistance in A. baumannii via the formulation of polymeric nanoFQs. Herein, 80 A. baumannii isolates were obtained from diverse clinical sources. All A. baumannii isolates showed high resistance to most of the investigated antimicrobials, including ciprofloxacin (CIP) and levofloxacin (LEV) (97.5%). FQ resistance-determining regions of the gyrA and parC genes were the most predominant resistant mechanism, harbored by 69 (86.3%) and 75 (93.8%) of the isolates, respectively. Additionally, plasmid-mediated quinolone resistance genes aac(6')-Ib and qnrS were detected in 61 (76.3%) and 2 (2.5%) of the 80 isolates, respectively. The CIP- and LEV-loaded poly ε-caprolactone (PCL) nanoparticles, FCIP and FLEV, respectively, showed a 1.5-6- and 6-12-fold decrease in the MIC, respectively, against the tested isolates. Interestingly, the time kill assay demonstrated that MICs of FCIP and FLEV completely killed A. baumannii isolates after 5-6 h of treatment. Furthermore, FCIP and FLEV were found to be efficient in overcoming the FQ resistance mediated by the efflux pumps in A. baumannii isolates as revealed by decreasing the MIC four-fold lower than that of free CIP and LEV, respectively. Moreover, FCIP and FLEV at 1/2 and 1/4 MIC significantly decreased biofilm formation by 47-93% and 69-91%, respectively. These findings suggest that polymeric nanoparticles can restore the effectiveness of FQs and represent a paradigm shift in the fight against A. baumannii isolates.
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Affiliation(s)
- Alaa M Aboelenin
- Department of Microbiology and Immunology, Faculty of Pharmacy, Mansoura University, PO Box 35516, Mansoura, Egypt
| | - Mohammed El-Mowafy
- Department of Microbiology and Immunology, Faculty of Pharmacy, Mansoura University, PO Box 35516, Mansoura, Egypt
| | - Noha M Saleh
- Department of Pharmaceutics, Faculty of Pharmacy, Mansoura University, PO Box 35516, Mansoura, Egypt
| | - Mona I Shaaban
- Department of Microbiology and Immunology, Faculty of Pharmacy, Mansoura University, PO Box 35516, Mansoura, Egypt.
| | - Rasha Barwa
- Department of Microbiology and Immunology, Faculty of Pharmacy, Mansoura University, PO Box 35516, Mansoura, Egypt.
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Avey AM, Devos F, Roberts AG, Essawy ESE, Baar K. Inhibiting JAK1, not NF-κB, reverses the effect of pro-inflammatory cytokines on engineered human ligament function. Matrix Biol 2024; 125:100-112. [PMID: 38151137 DOI: 10.1016/j.matbio.2023.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/23/2023] [Accepted: 12/23/2023] [Indexed: 12/29/2023]
Abstract
The role of inflammation in chronic tendon/ligament injury is hotly debated. There is less debate about inflammation following acute injury. To better understand the effect of acute inflammation, in this study we developed a multi-cytokine model of inflammatory tendinitis. The combined treatment with TNF-α, IL-1β, and IL-6, at dosages well below what are routinely used in vitro, decreased the mechanical properties and collagen content of engineered human ligaments. Treatment with this cytokine mixture resulted in an increase in phospho-NF-κB and MMP-1, did not affect procollagen production, and decreased STAT3 phosphorylation relative to controls. Using this more physiologically relevant model of acute inflammation, we inhibited NF-κB or JAK1 signaling in an attempt to reverse the negative effects of the cytokine mixture. Surprisingly, NF-κB inhibition led to an even greater decrease in mechanical function and collagen content. By contrast, inhibiting JAK1 led to an increase in mechanical properties, collagen content and thermal stability concomitant with a decrease in MMP-1. Our results suggest that inhibition of JAK1, not NF-κB, reverses the negative effects of pro-inflammatory cytokines on collagen content and mechanics in engineered human ligaments.
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Affiliation(s)
- Alec M Avey
- Department of Neurobiology, Physiology and Behavior, University of California Davis, Davis, CA 95616, United States
| | - Florence Devos
- Department of Neurobiology, Physiology and Behavior, University of California Davis, Davis, CA 95616, United States
| | - Albany G Roberts
- Department of Neurobiology, Physiology and Behavior, University of California Davis, Davis, CA 95616, United States
| | - El Sayed El Essawy
- Department of Neurobiology, Physiology and Behavior, University of California Davis, Davis, CA 95616, United States; Department of Sport Psychology, Mansoura University, Dakahlia Governorate 35516, Egypt
| | - Keith Baar
- Department of Neurobiology, Physiology and Behavior, University of California Davis, Davis, CA 95616, United States; Department of Physiology and Membrane Biology, University of California Davis, Davis, CA 95616, United States; VA Northern California Health Care System, Mather, CA 95655, United States.
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Salem-Bekhit MM, Riad OKM, Selim HMRM, Tohamy STK, Taha EI, Al-Suwayeh SA, Shazly GA. Box-Behnken Design for Assessing the Efficiency of Aflatoxin M1 Detoxification in Milk Using Lactobacillus rhamnosus and Saccharomyces cerevisiae. Life (Basel) 2023; 13:1667. [PMID: 37629525 PMCID: PMC10456063 DOI: 10.3390/life13081667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/27/2023] [Accepted: 07/27/2023] [Indexed: 08/27/2023] Open
Abstract
Milk contaminated with aflatoxin can lead to liver cancer. Aflatoxin B1 (AFB1), a serious animal feed contaminant, is transformed into Aflatoxin M1 (AFM1) and secreted in milk. In this study, a biological method using probiotic bacteria, Lactobacillus rhamnosus (L. rhamnosus) in combination with Saccharomyces cerevisiae (S. cerevisiae), was used to assess their antiaflatoxigenic effect in animal milk. A Box-Behnken design was used to establish the optimal ratio of L. rhamnosus and S. cerevisiae, incubation time, and temperature for efficient AFM1 detoxification from milk. To achieve this, the primary, interaction, and quadratic effects of the chosen factors were investigated. To investigate the quadratic response surfaces, a second-order polynomial model was built using a three-factor, three-level Box-Behnken design. The quantity of AFM1 was detected by the ELISA technique. The results of these experiments obtained an optimum condition in AFM1 detoxification of the three tested factors in order to maximize their effect on AFM1 detoxification in milk. The model was tested in three highly contaminated milk samples to assure the efficacy of the model. AFM1 detoxification was up to 98.4% in contaminated milk samples. These promising results provide a safe, low-cost, and low-time-consuming solution to get rid of the problem of milk contamination with AFM1.
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Affiliation(s)
- Mounir M. Salem-Bekhit
- Kayyali Chair for Pharmaceutical Industries, Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Omnia Karem M. Riad
- Department of Microbiology and Immunology, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11651, Egypt; (O.K.M.R.); (S.T.K.T.)
| | - Heba Mohammed Refat M. Selim
- Department of Microbiology and Immunology, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11651, Egypt; (O.K.M.R.); (S.T.K.T.)
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Al-Maarefa University, Diriyah, Riyadh 13713, Saudi Arabia
| | - Sally Tohamy Kamal Tohamy
- Department of Microbiology and Immunology, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11651, Egypt; (O.K.M.R.); (S.T.K.T.)
| | - Ehab I. Taha
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (E.I.T.); (S.A.A.-S.); (G.A.S.)
| | - Saleh A. Al-Suwayeh
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (E.I.T.); (S.A.A.-S.); (G.A.S.)
| | - Gamal A. Shazly
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (E.I.T.); (S.A.A.-S.); (G.A.S.)
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