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Zhou K, Tang M, Zhang W, Chen Y, Guan Y, Huang R, Duan J, Liu Z, Ji X, Jiang Y, Hu Y, Zhang X, Zhou J, Chen M. Exposure to Molybdate Results in Metabolic Disorder: An Integrated Study of the Urine Elementome and Serum Metabolome in Mice. TOXICS 2024; 12:288. [PMID: 38668511 PMCID: PMC11053804 DOI: 10.3390/toxics12040288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 04/04/2024] [Accepted: 04/12/2024] [Indexed: 04/29/2024]
Abstract
The increasing use of molybdate has raised concerns about its potential toxicity in humans. However, the potential toxicity of molybdate under the current level of human exposure remains largely unknown. Endogenous metabolic alterations that are caused in humans by environmental exposure to pollutants are associated with the occurrence and progression of many diseases. This study exposed eight-week-old male C57 mice to sodium molybdate at doses relevant to humans (0.01 and 1 mg/kg/day) for eight weeks. Inductively coupled plasma mass spectrometry (ICP-MS) and ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS) were utilized to assess changes in urine element levels and serum metabolites in mice, respectively. A total of 838 subjects from the NHANES 2017-2018 population database were also included in our study to verify the associations between molybdenum and cadmium found in mice. Analysis of the metabolome in mice revealed that four metabolites in blood serum exhibited significant changes, including 5-aminolevulinic acid, glycolic acid, l-acetylcarnitine, and 2,3-dihydroxypropyl octanoate. Analysis of the elementome revealed a significant increase in urine levels of cadmium after molybdate exposure in mice. Notably, molybdenum also showed a positive correlation with cadmium in humans from the NHANES database. Further analysis identified a positive correlation between cadmium and 2,3-dihydroxypropyl octanoate in mice. In conclusion, these findings suggest that molybdate exposure disrupted amino acid and lipid metabolism, which may be partially mediated by molybdate-altered cadmium levels. The integration of elementome and metabolome data provides sensitive information on molybdate-induced metabolic disorders and associated toxicities at levels relevant to human exposure.
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Affiliation(s)
- Kun Zhou
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (K.Z.); (M.T.); (Y.C.); (Y.G.); (R.H.); (J.D.); (Z.L.); (X.J.); (Y.J.); (J.Z.)
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Miaomiao Tang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (K.Z.); (M.T.); (Y.C.); (Y.G.); (R.H.); (J.D.); (Z.L.); (X.J.); (Y.J.); (J.Z.)
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Wei Zhang
- Sir Run Run Hospital of Nanjing Medical University, Nanjing 211166, China; (W.Z.); (Y.H.)
| | - Yanling Chen
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (K.Z.); (M.T.); (Y.C.); (Y.G.); (R.H.); (J.D.); (Z.L.); (X.J.); (Y.J.); (J.Z.)
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Yusheng Guan
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (K.Z.); (M.T.); (Y.C.); (Y.G.); (R.H.); (J.D.); (Z.L.); (X.J.); (Y.J.); (J.Z.)
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Rui Huang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (K.Z.); (M.T.); (Y.C.); (Y.G.); (R.H.); (J.D.); (Z.L.); (X.J.); (Y.J.); (J.Z.)
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Jiawei Duan
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (K.Z.); (M.T.); (Y.C.); (Y.G.); (R.H.); (J.D.); (Z.L.); (X.J.); (Y.J.); (J.Z.)
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Zibo Liu
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (K.Z.); (M.T.); (Y.C.); (Y.G.); (R.H.); (J.D.); (Z.L.); (X.J.); (Y.J.); (J.Z.)
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Xiaoming Ji
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (K.Z.); (M.T.); (Y.C.); (Y.G.); (R.H.); (J.D.); (Z.L.); (X.J.); (Y.J.); (J.Z.)
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Yingtong Jiang
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (K.Z.); (M.T.); (Y.C.); (Y.G.); (R.H.); (J.D.); (Z.L.); (X.J.); (Y.J.); (J.Z.)
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Yanhui Hu
- Sir Run Run Hospital of Nanjing Medical University, Nanjing 211166, China; (W.Z.); (Y.H.)
| | - Xiaoling Zhang
- Department of Hygienic Analysis and Detection, Nanjing Medical University, Nanjing 211166, China;
| | - Jingjing Zhou
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (K.Z.); (M.T.); (Y.C.); (Y.G.); (R.H.); (J.D.); (Z.L.); (X.J.); (Y.J.); (J.Z.)
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Minjian Chen
- State Key Laboratory of Reproductive Medicine and Offspring Health, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China; (K.Z.); (M.T.); (Y.C.); (Y.G.); (R.H.); (J.D.); (Z.L.); (X.J.); (Y.J.); (J.Z.)
- Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
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Xu D, Tong Y, Chen B, Li B, Wang S, Zhang D. The influence of first desaturase subfamily genes on fatty acid synthesis, desiccation tolerance and inter-caste nutrient transfer in the termite Coptotermes formosanus. INSECT MOLECULAR BIOLOGY 2024; 33:55-68. [PMID: 37750189 DOI: 10.1111/imb.12877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 09/13/2023] [Indexed: 09/27/2023]
Abstract
Desaturase enzymes play an essential role in the biosynthesis of unsaturated fatty acids (UFAs). In this study, we identified seven "first desaturase" subfamily genes (Cfor-desatA1, Cfor-desatA2-a, Cfor-desatA2-b, Cfor-desatB-a, Cfor-desatB-b, Cfor-desatD and Cfor-desatE) from the Formosan subterranean termite Coptotermes formosanus. These desaturases were highly expressed in the cuticle and fat body of C. formosanus. Inhibition of either the Cfor-desatA2-a or Cfor-desatA2-b gene resulted in a significant decrease in the contents of fatty acids (C16:0, C18:0, C18:1 and C18:2) in worker castes. Moreover, we observed that inhibition of most of desaturase genes identified in this study had a negative impact on the survival rate and desiccation tolerance of workers. Interestingly, when normal soldiers were reared together with dsCfor-desatA2-b-treated workers, they exhibited higher mortality, suggesting that desaturase had an impact on trophallaxis among C. formosanus castes. Our findings shed light on the novel roles of desaturase family genes in the eusocial termite C. formosanus.
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Affiliation(s)
- Danni Xu
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou, China
| | - Yuxin Tong
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou, China
- School of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, China
| | - Bosheng Chen
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou, China
| | - Baoling Li
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou, China
| | - Shengyin Wang
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou, China
| | - Dayu Zhang
- The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, College of Advanced Agricultural Sciences, Zhejiang A&F University, Hangzhou, China
- School of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, China
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Lai X, Chow SH, Le Brun AP, Muir BW, Bergen PJ, White J, Yu HH, Wang J, Danne J, Jiang JH, Short FL, Han ML, Strugnell RA, Song J, Cameron NR, Peleg AY, Li J, Shen HH. Polysaccharide-Targeting Lipid Nanoparticles to Kill Gram-Negative Bacteria. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305052. [PMID: 37798622 DOI: 10.1002/smll.202305052] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/16/2023] [Indexed: 10/07/2023]
Abstract
The rapid increase and spread of Gram-negative bacteria resistant to many or all existing treatments threaten a return to the preantibiotic era. The presence of bacterial polysaccharides that impede the penetration of many antimicrobials and protect them from the innate immune system contributes to resistance and pathogenicity. No currently approved antibiotics target the polysaccharide regions of microbes. Here, describe monolaurin-based niosomes, the first lipid nanoparticles that can eliminate bacterial polysaccharides from hypervirulent Klebsiella pneumoniae, are described. Their combination with polymyxin B shows no cytotoxicity in vitro and is highly effective in combating K. pneumoniae infection in vivo. Comprehensive mechanistic studies have revealed that antimicrobial activity proceeds via a multimodal mechanism. Initially, lipid nanoparticles disrupt polysaccharides, then outer and inner membranes are destabilized and destroyed by polymyxin B, resulting in synergistic cell lysis. This novel lipidic nanoparticle system shows tremendous promise as a highly effective antimicrobial treatment targeting multidrug-resistant Gram-negative pathogens.
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Affiliation(s)
- Xiangfeng Lai
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Seong Hoong Chow
- Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, 3800, Australia
| | - Anton P Le Brun
- Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, New South Wales, 2232, Australia
| | | | - Phillip J Bergen
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, Victoria, 3800, Australia
| | - Jacinta White
- CSIRO Manufacturing, Clayton, Victoria, 3168, Australia
| | - Heidi H Yu
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, Victoria, 3800, Australia
| | - Jiping Wang
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, Victoria, 3800, Australia
| | - Jill Danne
- Monash Ramaciotti Centre for Cryo-Electron Microscopy, A Node of Microscopy Australia, Monash University, Clayton, Victoria, 3800, Australia
| | - Jhih-Hang Jiang
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, Victoria, 3800, Australia
| | - Francesca L Short
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, Victoria, 3800, Australia
| | - Mei-Ling Han
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, Victoria, 3800, Australia
| | - Richard A Strugnell
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, 3000, Australia
| | - Jiangning Song
- Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, 3800, Australia
| | - Neil R Cameron
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Anton Y Peleg
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, Victoria, 3800, Australia
| | - Jian Li
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, Victoria, 3800, Australia
| | - Hsin-Hui Shen
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, Victoria, 3800, Australia
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Microbiology, Monash University, Clayton, Victoria, 3800, Australia
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Arellano H, Nardello-Rataj V, Szunerits S, Boukherroub R, Fameau AL. Saturated long chain fatty acids as possible natural alternative antibacterial agents: Opportunities and challenges. Adv Colloid Interface Sci 2023; 318:102952. [PMID: 37392663 DOI: 10.1016/j.cis.2023.102952] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/14/2023] [Accepted: 06/16/2023] [Indexed: 07/03/2023]
Abstract
The spread of new strains of antibiotic-resistant pathogenic microorganisms has led to the urgent need to discover and develop new antimicrobial systems. The antibacterial effects of fatty acids have been well-known and recognized since the first experiments of Robert Koch in 1881, and they are now used in diverse fields. Fatty acids can prevent the growth and directly kill bacteria by insertion into their membrane. For that, a sufficient amount of fatty acid molecules has to be solubilized in water to transfer from the aqueous phase to the cell membrane. Due to conflicting results in the literature and lack of standardization methods, it is very difficult to draw clear conclusions on the antibacterial effect of fatty acids. Most of the current studies link fatty acids' effectiveness against bacteria to their chemical structure, notably the alkyl chain length and the presence of double bonds in their chain. Furthermore, the solubility of fatty acids and their critical aggregation concentration is not only related to their structure, but also influenced by medium conditions (pH, temperature, ionic strength, etc.). There is a possibility that the antibacterial activity of saturated long chain fatty acids (LCFA) may be underestimated due to the lack of water solubility and the use of unsuitable methods to assess their antibacterial activity. Thus, enhancing the solubility of these long chain saturated fatty acids is the main goal before examining their antibacterial properties. To increase their water solubility and thereby improve their antibacterial efficacy, novel alternatives may be considered, including the use of organic positively charged counter-ions instead of the conventional sodium and potassium soaps, the formation of catanionic systems, the mixture with co-surfactants, and solubilization in emulsion systems. This review summarizes the latest findings on fatty acids as antibacterial agents, with a focus on long chain saturated fatty acids. Additionally, it highlights the different ways to improve their water solubility, which may be a crucial factor in increasing their antibacterial efficacy. We finish with a discussion on the challenges, strategies and opportunities for the formulation of LCFAs as antibacterial agents.
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Affiliation(s)
- Helena Arellano
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Véronique Nardello-Rataj
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, F-59000 Lille, France
| | - Sabine Szunerits
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520 - IEMN, F-59000 Lille, France
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520 - IEMN, F-59000 Lille, France
| | - Anne-Laure Fameau
- Univ. Lille, CNRS, INRAe, Centrale Lille, UMET, F-59000, Lille, France.
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Ioannou P, Baliou S, Kofteridis DP. Antimicrobial Peptides in Infectious Diseases and Beyond-A Narrative Review. Life (Basel) 2023; 13:1651. [PMID: 37629508 PMCID: PMC10455936 DOI: 10.3390/life13081651] [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: 07/17/2023] [Revised: 07/26/2023] [Accepted: 07/27/2023] [Indexed: 08/27/2023] Open
Abstract
Despite recent medical research and clinical practice developments, the development of antimicrobial resistance (AMR) significantly limits therapeutics for infectious diseases. Thus, novel treatments for infectious diseases, especially in this era of increasing AMR, are urgently needed. There is ongoing research on non-classical therapies for infectious diseases utilizing alternative antimicrobial mechanisms to fight pathogens, such as bacteriophages or antimicrobial peptides (AMPs). AMPs are evolutionarily conserved molecules naturally produced by several organisms, such as plants, insects, marine organisms, and mammals, aiming to protect the host by fighting pathogenic microorganisms. There is ongoing research regarding developing AMPs for clinical use in infectious diseases. Moreover, AMPs have several other non-medical applications in the food industry, such as preservatives, animal husbandry, plant protection, and aquaculture. This review focuses on AMPs, their origins, biology, structure, mechanisms of action, non-medical applications, and clinical applications in infectious diseases.
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Affiliation(s)
- Petros Ioannou
- School of Medicine, University of Crete, 71003 Heraklion, Greece
- Internal Medicine, University Hospital of Heraklion, 71110 Heraklion, Greece
| | - Stella Baliou
- Internal Medicine, University Hospital of Heraklion, 71110 Heraklion, Greece
| | - Diamantis P. Kofteridis
- School of Medicine, University of Crete, 71003 Heraklion, Greece
- Internal Medicine, University Hospital of Heraklion, 71110 Heraklion, Greece
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Makky AMA, S El-Leithy E, Hussein DG, Khattab A. A Full Factorial Design to Optimize Aminexil Nano Lipid Formulation to Improve Skin Permeation and Efficacy Against Alopecia. AAPS PharmSciTech 2023; 24:40. [PMID: 36653508 DOI: 10.1208/s12249-023-02500-3] [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: 09/09/2022] [Accepted: 12/27/2022] [Indexed: 01/20/2023] Open
Abstract
Aminexil (AMX) is considered to be one of the most widely used hair growth promoters. Nanostructured lipid carriers (NLC) are employed to increase the permeation of both lipophilic and hydrophilic drugs. Aminexil nanostructured lipid carrier (NLC) designed by pre-emulsion/ultrasonication method was utilized for alopecia treatment. For selecting optimum excipients, a solubility study was executed in liquid lipids, solid lipids, surfactants, and co-surfactants. A 23 full factorial design was utilized for NLC optimization. Characterization of the developed formulas was performed. The penetration of the optimized formula across cuticle tissues was studied using confocal laser scanning microscopy (CLSM). AMX showed high solubility in glyceryl monostearate (GMS) and stearic acid, 28.87 ± 2.17 and 58.06 ± 2.227 mg/g, respectively. The results of physicochemical characterization showed that formula A7 was the optimized one. It is composed of GMS (solid lipid), oleic acid:garlic oil (1:1 v/v) (liquid lipid), and a surfactant/co-surfactant mixture (Cremophor EL/Transcutol HP). The particle size (PS) was 238.0 ± 2.13 nm, entrapment efficiency (EE) 100.535 ± 6.73%, and zeta potential (ZP) - 29.3 ± 0.93 mv. Ex vivo permeation study demonstrates the potential of AMX-NLC (formula A7) as a delivery system for AMX. The CLSM highly proved AMX-loaded NLC penetration through the skin. The histological study clearly demonstrated that AMX-loaded NLC promoted hair growth more effectively than the market product in chemotherapy-induced alopecia rats. The acquired findings revealed that targeting of AMX-loaded NLC into hair follicles was improved.
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Affiliation(s)
- Amna M A Makky
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
| | - Eman S El-Leithy
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Cairo, Egypt.,Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Helwan University, Ain-Helwan, Cairo, 11795, Egypt
| | - Doaa Galaa Hussein
- Department of Pharmaceutics, Egyptian Drug Authority (EDA), Cairo, Egypt
| | - Abeer Khattab
- Department of Pharmaceutics, Egyptian Drug Authority (EDA), Cairo, Egypt.
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Imperlini E, Massaro F, Buonocore F. Antimicrobial Peptides against Bacterial Pathogens: Innovative Delivery Nanosystems for Pharmaceutical Applications. Antibiotics (Basel) 2023; 12:antibiotics12010184. [PMID: 36671385 PMCID: PMC9854484 DOI: 10.3390/antibiotics12010184] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 01/19/2023] Open
Abstract
The introduction of antibiotics has revolutionized the treatment and prevention of microbial infections. However, the global spread of pathogens resistant to available antibiotics is a major concern. Recently, the WHO has updated the priority list of multidrug-resistant (MDR) species for which the discovery of new therapeutics is urgently needed. In this scenario, antimicrobial peptides (AMPs) are a new potential alternative to conventional antibiotics, as they show a low risk of developing antimicrobial resistance, thus preventing MDR bacterial infections. However, there are limitations and challenges related to the clinical impact of AMPs, as well as great scientific efforts to find solutions aimed at improving their biological activity, in vivo stability, and bioavailability by reducing the eventual toxicity. To overcome some of these issues, different types of nanoparticles (NPs) have been developed for AMP delivery over the last decades. In this review, we provide an update on recent nanosystems applied to AMPs, with special attention on their potential pharmaceutical applications for the treatment of bacterial infections. Among lipid nanomaterials, solid lipid NPs and lipid nanocapsules have been employed to enhance AMP solubility and protect peptides from proteolytic degradation. In addition, polymeric NPs, particularly nanogels, are able to help in reducing AMP toxicity and also increasing AMP loading. To boost AMP activity instead, mesoporous silica or gold NPs can be selected due to their easy surface functionalization. They have been also used as nanocarriers for different AMP combinations, thus synergistically potentiating their action against pathogens.
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Elmowafy M, Shalaby K, Elkomy MH, Awad Alsaidan O, Gomaa HAM, Abdelgawad MA, Massoud D, Salama A, El-Say KM. Development and assessment of phospholipid-based luteolin-loaded lipid nanocapsules for skin delivery. Int J Pharm 2022; 629:122375. [PMID: 36351506 DOI: 10.1016/j.ijpharm.2022.122375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 11/01/2022] [Accepted: 11/02/2022] [Indexed: 11/08/2022]
Abstract
Luteolin is an excellent flavone possessing several beneficial properties such as antioxidant and anti-inflammatory effects which are interesting for skin delivery. Development of an appropriate skin delivery system could be a promising strategy to improve luteolin cutaneous performance.So, the main aim of this work was to fabricate, characterize and evaluate phospholipid-based luteolin-loaded lipid nanocapsules for skin delivery. The influence of phospholipid/oil ratio, surfactant type and chitosan coating were investigated. The prepared formulations underwent in vitro assessment and the selected formulations were evaluated ex vivo and in vivo. The mean diameters of investigated formulations varied between 174 nm and 628 nm while zeta potential varied between -25.7 ± 4.8 mV and 6.8 ± 1.7 mV. Increasing in phospholipid/oil ratios resulted in decrease in particles size with little effect on zeta potential and drug encapsulation. Cremophor EL showed the lowest particle sizes and the highest drug encapsulation. Chitosan coating shifted zeta potential towards positive values. Structural analyses showed that luteolin is incorporated into lipid core of nanocapsules. Selected formulations (LNC4 and LNC13) exhibited sustained in vitro release and antioxidant activity. LNC13 (chitosan coated) showed higher flux (0.457 ± 0.113 µg/cm2/h), permeability (45.70 ± 11.66 *10-5 cm2/h) and skin retention (121.66 ± 7.6 µg/cm2 after 24 h) when compared to LNC4 and suspension. It also showed disordered the integrity of the stratum corneum, increased epidermal thickness and relieving most of inflammatory features in animal model. In conclusion, this study proves that lipid nanocapsules could effectively deliver luteolin into skin and then can be established as a potential system in the pharmaceutical and cosmeceutical horizons.
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Affiliation(s)
- Mohammed Elmowafy
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka P.O. Box 2014, Saudi Arabia.
| | - Khaled Shalaby
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka P.O. Box 2014, Saudi Arabia
| | - Mohammed H Elkomy
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka P.O. Box 2014, Saudi Arabia
| | - Omar Awad Alsaidan
- Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka P.O. Box 2014, Saudi Arabia
| | - Hesham A M Gomaa
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka P.O. Box 2014, Saudi Arabia
| | - Mohamed A Abdelgawad
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka, Saudi Arabia
| | - Diaa Massoud
- Department of Biology, College of Science, Jouf University, Sakaka P.O. Box 2014, Saudi Arabia
| | - Ayman Salama
- Department of Pharmaceutics, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia; Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr City, Cairo, Egypt
| | - Khalid M El-Say
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Ren R, Lim C, Li S, Wang Y, Song J, Lin TW, Muir BW, Hsu HY, Shen HH. Recent Advances in the Development of Lipid-, Metal-, Carbon-, and Polymer-Based Nanomaterials for Antibacterial Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12213855. [PMID: 36364631 PMCID: PMC9658259 DOI: 10.3390/nano12213855] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 10/28/2022] [Accepted: 10/28/2022] [Indexed: 05/29/2023]
Abstract
Infections caused by multidrug-resistant (MDR) bacteria are becoming a serious threat to public health worldwide. With an ever-reducing pipeline of last-resort drugs further complicating the current dire situation arising due to antibiotic resistance, there has never been a greater urgency to attempt to discover potential new antibiotics. The use of nanotechnology, encompassing a broad range of organic and inorganic nanomaterials, offers promising solutions. Organic nanomaterials, including lipid-, polymer-, and carbon-based nanomaterials, have inherent antibacterial activity or can act as nanocarriers in delivering antibacterial agents. Nanocarriers, owing to the protection and enhanced bioavailability of the encapsulated drugs, have the ability to enable an increased concentration of a drug to be delivered to an infected site and reduce the associated toxicity elsewhere. On the other hand, inorganic metal-based nanomaterials exhibit multivalent antibacterial mechanisms that combat MDR bacteria effectively and reduce the occurrence of bacterial resistance. These nanomaterials have great potential for the prevention and treatment of MDR bacterial infection. Recent advances in the field of nanotechnology are enabling researchers to utilize nanomaterial building blocks in intriguing ways to create multi-functional nanocomposite materials. These nanocomposite materials, formed by lipid-, polymer-, carbon-, and metal-based nanomaterial building blocks, have opened a new avenue for researchers due to the unprecedented physiochemical properties and enhanced antibacterial activities being observed when compared to their mono-constituent parts. This review covers the latest advances of nanotechnologies used in the design and development of nano- and nanocomposite materials to fight MDR bacteria with different purposes. Our aim is to discuss and summarize these recently established nanomaterials and the respective nanocomposites, their current application, and challenges for use in applications treating MDR bacteria. In addition, we discuss the prospects for antimicrobial nanomaterials and look forward to further develop these materials, emphasizing their potential for clinical translation.
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Affiliation(s)
- Ruohua Ren
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Chiaxin Lim
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, VIC 3800, Australia
- Biomedicine Discovery Institute, Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC 3800, Australia
| | - Shiqi Li
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Yajun Wang
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Jiangning Song
- Biomedicine Discovery Institute, Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC 3800, Australia
| | - Tsung-Wu Lin
- Department of Chemistry, Tunghai University, No.1727, Sec.4, Taiwan Boulevard, Xitun District, Taichung 40704, Taiwan
| | | | - Hsien-Yi Hsu
- School of Energy and Environment, Department of Materials Science and Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong 518057, China
| | - Hsin-Hui Shen
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, VIC 3800, Australia
- Biomedicine Discovery Institute, Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC 3800, Australia
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10
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Beraldo-Araújo VL, Flávia Siqueira Vicente A, van Vliet Lima M, Umerska A, Souto EB, Tajber L, Oliveira-Nascimento L. Levofloxacin in nanostructured lipid carriers: Preformulation and critical process parameters for a highly incorporated formulation. Int J Pharm 2022; 626:122193. [PMID: 36108993 DOI: 10.1016/j.ijpharm.2022.122193] [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: 02/16/2022] [Revised: 08/05/2022] [Accepted: 09/07/2022] [Indexed: 10/14/2022]
Abstract
The first step of a successful nanoformulation development is preformulation studies, in which the best excipients, drug-excipient compatibility and interactions can be identified. During the formulation, the critical process parameters and their impact must be studied to establish the stable system with a high drug entrapment efficiency (EE). This work followed these steps to develop nanostructured lipid carriers (NLCs) to deliver the antibiotic levofloxacin (LV). The preformulation studies covered drug solubility in excipients and thorough characterization using thermal analysis, X-ray diffraction and spectroscopy. A design of experiment based on the process parameters identified nanoparticles with < 200 nm in size, polydispersity <= 0.3, zeta potential -21 to -24 mV, high EE formulations (>71 %) and an acceptable level of LV degradation products (0.37-1.13 %). To the best of our knowledge, this is the first time that a drug degradation is reported and studied in work on nanostructured lipids. LV impurities following the NLC production were detected, mainly levofloxacin N-oxide, a degradation product that has no antimicrobial activity and could interfere with LV quantification in spectrophotometric experiments. Also, the achievement of the highest EE in lipid nanoparticles than those described in the literature to date and the apparent protective action of NLC of entrapped-LV against degradation are important findings.
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Affiliation(s)
- Viviane Lucia Beraldo-Araújo
- Faculty of Pharmaceutical Sciences, State University of Campinas, Campinas, Brazil; School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, College Green, Dublin 2, Ireland; Centre of Biological Engineering (CEB), University of Minho, Campus de Gualtar, 4700 Braga, Portugal
| | | | - Marcelo van Vliet Lima
- Faculty of Pharmaceutical Sciences, State University of Campinas, Campinas, Brazil; Sanofi Medley Farmacêutica Ltda, Campinas, Brazil
| | - Anita Umerska
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, College Green, Dublin 2, Ireland
| | - Eliana B Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; REQUIMTE/UCIBIO, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Lidia Tajber
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, College Green, Dublin 2, Ireland.
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11
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Prasad SR, Kumar P, Mandal S, Mohan A, Chaurasia R, Shrivastava A, Nikhil P, Aishwarya D, Ramalingam P, Gajbhiye R, Singh S, Dasgupta A, Chourasia M, Ravichandiran V, Das P, Mandal D. Mechanistic insight into the role of mevalonate kinase by a natural fatty acid-mediated killing of Leishmania donovani. Sci Rep 2022; 12:16453. [PMID: 36180490 PMCID: PMC9525708 DOI: 10.1038/s41598-022-20509-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 09/14/2022] [Indexed: 11/29/2022] Open
Abstract
We evaluated the anti-leishmanial efficacy of different saturated medium-chain fatty acids (FAs, C8–C18) where FA containing C8 chain, caprylic acid (CA), was found to be most potent against Leishmania donovani, the causative agent for visceral leishmaniasis (VL). Different analogs of CA with C8 linear chain, but not higher, along with a carboxyl/ester group showed a similar anti-leishmanial effect. Ergosterol depletion was the major cause of CA-mediated cell death. Molecular docking and molecular dynamic simulation studies indicated the enzyme mevalonate kinase (MevK) of the ergosterol biosynthesis pathway as a possible target of CA. Enzyme assays with purified recombinant MevK and CA/CA analogs confirmed the target with a competitive inhibition pattern. Using biochemical and biophysical studies; strong binding interaction between MevK and CA/CA analogs was established. Further, using parasites with overexpressed MevK and proteomics studies of CA-treated parasites the direct role of MevK as the target was validated. We established the mechanism of the antileishmanial effect of CA, a natural product, against VL where toxicity and drug resistance with current chemotherapeutics demand an alternative. This is the first report on the identification of an enzymatic target with kinetic parameters and mechanistic insights against any organism for a natural medium-chain FA.
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Affiliation(s)
- Surendra Rajit Prasad
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Export Promotions Industrial Park (EPIP), Vaishali District, Hajipur, Bihar, 844102, India
| | - Prakash Kumar
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Export Promotions Industrial Park (EPIP), Vaishali District, Hajipur, Bihar, 844102, India
| | - Saptarshi Mandal
- Department of Chemistry, Indian Institute of Technology, Patna Bihta, Bihar, 801106, India
| | - Anu Mohan
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Export Promotions Industrial Park (EPIP), Vaishali District, Hajipur, Bihar, 844102, India
| | - Radhika Chaurasia
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Export Promotions Industrial Park (EPIP), Vaishali District, Hajipur, Bihar, 844102, India
| | - Ashish Shrivastava
- Translational Bioinformatics and Computational Genomics Research Lab, Department of Life Sciences, Shiv Nadar University, G.B. Nagar, Uttar Pradesh, 201314, India
| | - Pallaprolu Nikhil
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research, Hajipur, 844102, India
| | - Dande Aishwarya
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research, Hajipur, 844102, India
| | - P Ramalingam
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research, Hajipur, 844102, India
| | - Rahul Gajbhiye
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research, Hajipur, 844102, India
| | - Shriya Singh
- Molecular Microbiology and Immunology Division, CSIR-Central Drug Research Institute, Sitapur Rd, Sector-10, Jankipuram Extension, Lucknow, Uttar Pradesh, 226031, India
| | - Arunava Dasgupta
- Molecular Microbiology and Immunology Division, CSIR-Central Drug Research Institute, Sitapur Rd, Sector-10, Jankipuram Extension, Lucknow, Uttar Pradesh, 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Mukesh Chourasia
- Amity Institute of Biotechnology, Amity University, Sector 125, Noida, Uttar Pradesh, 201301, India
| | - V Ravichandiran
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Export Promotions Industrial Park (EPIP), Vaishali District, Hajipur, Bihar, 844102, India.,National Institute of Pharmaceutical Education and Research, Kolkata, 700054, India
| | - Prolay Das
- Department of Chemistry, Indian Institute of Technology, Patna Bihta, Bihar, 801106, India
| | - Debabrata Mandal
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Export Promotions Industrial Park (EPIP), Vaishali District, Hajipur, Bihar, 844102, India.
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12
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Intranasally administered melatonin core-shell polymeric nanocapsules: A promising treatment modality for cerebral ischemia. Life Sci 2022; 306:120797. [PMID: 35841976 DOI: 10.1016/j.lfs.2022.120797] [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: 02/22/2022] [Revised: 06/30/2022] [Accepted: 07/08/2022] [Indexed: 11/22/2022]
Abstract
AIMS The neurohormone melatonin (MEL) has been reported as a promising neuroprotective molecule, however it suffers pharmaceutical limitations such as poor solubility and low bioavailability, which hinder its pharmacological and clinical potential. In the current work, MEL was loaded in core-shell nanocarrier system; polymeric nanocapsules (PNCs), and assessed for its potential in cerebral ischemia reperfusion injury rat model when administered intranasally. KEY FINDINGS Adopting a D-optimal factorial design, MEL-PNCs were successfully formulated using the nanoprecipitation technique. MEL-PNCs exhibited a particle size ranging from 143.5 to 444 nm, negative zeta potential values ranging from -24.2 to -38.7 mV, cumulative release % for MEL ranging from 36.79 to 41.31 % over 8 h period, with overall good storage properties. The selected MEL-PNCs formulation displayed 8-fold higher permeation than the drug solution across sheep nasal mucosa. MEL-PNCs administered intranasally decreased oxidative stress and hippocampal inflammation, and the histological examination revealed the significant restoration of hippocampal neurons. SIGNIFICANCE MEL-PNCs administered intranasally could be a promising treatment modality in brain ischemia.
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13
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Biocompatibility and Antimicrobial Activity of Nanostructured Lipid Carriers for Topical Applications Are Affected by Type of Oils Used in Their Composition. Pharmaceutics 2021; 13:pharmaceutics13111950. [PMID: 34834365 PMCID: PMC8618763 DOI: 10.3390/pharmaceutics13111950] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 11/13/2021] [Accepted: 11/15/2021] [Indexed: 01/14/2023] Open
Abstract
Nanostructured lipid carriers (NLCs) have gained significant attention as tools for the dermal delivery of therapeutics due to their stability, biocompatibility, and ability to improve drug bioavailability. The use of natural plant oils (NPO) in NLC formulations has numerous benefits for the skin due to their therapeutic potential. This work shows the effect of NLC composition on bioavailability in epidermal cells and antimicrobial activity against Staphylococcus aureus. Sixteen systems containing fixed (sunflower, olive, corn, peanut, coconut, castor, and sweet almond) and essential (eucalyptus) oils, with different solid lipid (SL): liquid lipid (LL) ratios, were engineered. The structural properties, bioavailability, and antimicrobial action of the particles was studied. The choice of NPO influenced the physicochemical stability by changing the diameter of NLC formulations (between 160 nm and 185 nm) and Z-potential (between −46 mV and −61 mV). All of the systems were characterized by concentration-dependent cytocompatibility with human epidermal keratinocytes (HaCaT) and human dermal fibroblasts (HDFn). The SL:LL ratio in some NLC systems impacted cell cytotoxicity differently. Antimicrobial properties were observed in all 16 systems; however, the type of oil and SL:LL ratio affected the activity of the formulations. Two NLC-NPO systems were found to be non-cytotoxic to human cells lines at concentrations that completely inhibited bacterial growth. These results present a strong argument that the use of natural oils in NLC formulations presents a promising tool for the treatment of skin infections.
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14
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Zhang QY, Yan ZB, Meng YM, Hong XY, Shao G, Ma JJ, Cheng XR, Liu J, Kang J, Fu CY. Antimicrobial peptides: mechanism of action, activity and clinical potential. Mil Med Res 2021; 8:48. [PMID: 34496967 PMCID: PMC8425997 DOI: 10.1186/s40779-021-00343-2] [Citation(s) in RCA: 192] [Impact Index Per Article: 64.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 08/30/2021] [Indexed: 12/15/2022] Open
Abstract
The management of bacterial infections is becoming a major clinical challenge due to the rapid evolution of antibiotic resistant bacteria. As an excellent candidate to overcome antibiotic resistance, antimicrobial peptides (AMPs) that are produced from the synthetic and natural sources demonstrate a broad-spectrum antimicrobial activity with the high specificity and low toxicity. These peptides possess distinctive structures and functions by employing sophisticated mechanisms of action. This comprehensive review provides a broad overview of AMPs from the origin, structural characteristics, mechanisms of action, biological activities to clinical applications. We finally discuss the strategies to optimize and develop AMP-based treatment as the potential antimicrobial and anticancer therapeutics.
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Affiliation(s)
- Qi-Yu Zhang
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China
| | - Zhi-Bin Yan
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China
| | - Yue-Ming Meng
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China
| | - Xiang-Yu Hong
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China
| | - Gang Shao
- Department of Oncology, The 903rd Hospital of PLA, Hangzhou, 310013, Zhejiang, China
| | - Jun-Jie Ma
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China
| | - Xu-Rui Cheng
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China
| | - Jun Liu
- Department of Pharmaceutical Chemistry and the Cardiovascular Research Institute, University of California San Francisco, 555 Mission Bay Blvd. South, San Francisco, CA, 94158, USA
| | - Jian Kang
- Oncogenic Signaling and Growth Control Program, Peter MacCallum Cancer Centre, 305 Grattan Street, Melbourne, VIC, 3000, Australia.,Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, 3010, Australia
| | - Cai-Yun Fu
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, No. 928, Street 2, Xiasha Higher Education Zone, Hangzhou, 310018, Zhejiang, China.
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15
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Tan JYB, Yoon BK, Cho NJ, Lovrić J, Jug M, Jackman JA. Lipid Nanoparticle Technology for Delivering Biologically Active Fatty Acids and Monoglycerides. Int J Mol Sci 2021; 22:9664. [PMID: 34575831 PMCID: PMC8465605 DOI: 10.3390/ijms22189664] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 09/03/2021] [Accepted: 09/05/2021] [Indexed: 12/12/2022] Open
Abstract
There is enormous interest in utilizing biologically active fatty acids and monoglycerides to treat phospholipid membrane-related medical diseases, especially with the global health importance of membrane-enveloped viruses and bacteria. However, it is difficult to practically deliver lipophilic fatty acids and monoglycerides for therapeutic applications, which has led to the emergence of lipid nanoparticle platforms that support molecular encapsulation and functional presentation. Herein, we introduce various classes of lipid nanoparticle technology and critically examine the latest progress in utilizing lipid nanoparticles to deliver fatty acids and monoglycerides in order to treat medical diseases related to infectious pathogens, cancer, and inflammation. Particular emphasis is placed on understanding how nanoparticle structure is related to biological function in terms of mechanism, potency, selectivity, and targeting. We also discuss translational opportunities and regulatory needs for utilizing lipid nanoparticles to deliver fatty acids and monoglycerides, including unmet clinical opportunities.
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Affiliation(s)
- Jia Ying Brenda Tan
- School of Chemical Engineering and Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Korea; (J.Y.B.T.); (B.K.Y.)
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 637553, Singapore;
| | - Bo Kyeong Yoon
- School of Chemical Engineering and Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Korea; (J.Y.B.T.); (B.K.Y.)
- School of Healthcare and Biomedical Engineering, Chonnam National University, Yeosu 59626, Korea
| | - Nam-Joon Cho
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 637553, Singapore;
| | - Jasmina Lovrić
- Department of Pharmaceutical Technology, Faculty of Pharmacy and Biochemistry, University of Zagreb, 10000 Zagreb, Croatia; (J.L.); (M.J.)
| | - Mario Jug
- Department of Pharmaceutical Technology, Faculty of Pharmacy and Biochemistry, University of Zagreb, 10000 Zagreb, Croatia; (J.L.); (M.J.)
| | - Joshua A. Jackman
- School of Chemical Engineering and Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Korea; (J.Y.B.T.); (B.K.Y.)
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16
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Dos Santos Ramos MA, de Toledo LG, Spósito L, Marena GD, de Lima LC, Fortunato GC, Araújo VHS, Bauab TM, Chorilli M. Nanotechnology-based lipid systems applied to resistant bacterial control: A review of their use in the past two decades. Int J Pharm 2021; 603:120706. [PMID: 33991597 DOI: 10.1016/j.ijpharm.2021.120706] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/09/2021] [Accepted: 05/10/2021] [Indexed: 02/07/2023]
Abstract
The rate of infections caused by resistant bacteria to the antimicrobials available for human use grows exponentially every year, which generates major impacts on human health and the world economy. In the last two decades, human beings can witness the expressive increase in the Science and Technology worldwide, and areas such as Health Sciences have benefited from these advances in favor of human health, such as the advent of Pharmaceutical Nanotechnology as an important approach applied for bacterial infections treatment with resistance profile to available antibiotics. This review of the scientific literature brings the applicability of nanotechnology-based lipid systems as an innovative tool in the improvement of bacterial infections treatment. Important studies involving the use of liposomes, solid lipid nanoparticles, nanostructured lipid carriers, nanoemulsions, microemulsions and lipid nanocapsules were verified in the period from 2000 to 2020, where important scientific results were found and will serve as a basis for the use of these systems to remain in constant updating. This manuscript shows the use of these drug delivery systems as potential vehicles for antibacterial compounds, which opens a new hope in the complement of the antibacterial therapeutic arsenal. Important studies developed in the last 20 years are present in this review, and thus guarantees an update on the use of these drug delivery systems for researchers from different areas of Health Sciences.
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Affiliation(s)
- Matheus Aparecido Dos Santos Ramos
- Department of Drug and Medicines, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, 14.800-903 São Paulo State, Brazil.
| | - Luciani Gaspar de Toledo
- Department of Biological Sciences, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, 14.800-903 São Paulo State, Brazil
| | - Larissa Spósito
- Department of Drug and Medicines, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, 14.800-903 São Paulo State, Brazil
| | - Gabriel Davi Marena
- Department of Drug and Medicines, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, 14.800-903 São Paulo State, Brazil
| | - Laura Caminitti de Lima
- Department of Biological Sciences, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, 14.800-903 São Paulo State, Brazil
| | - Giovanna Capaldi Fortunato
- Department of Drug and Medicines, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, 14.800-903 São Paulo State, Brazil
| | - Victor Hugo Sousa Araújo
- Department of Drug and Medicines, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, 14.800-903 São Paulo State, Brazil
| | - Taís Maria Bauab
- Department of Biological Sciences, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, 14.800-903 São Paulo State, Brazil
| | - Marlus Chorilli
- Department of Drug and Medicines, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, 14.800-903 São Paulo State, Brazil.
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17
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Thorn CR, Thomas N, Boyd BJ, Prestidge CA. Nano-fats for bugs: the benefits of lipid nanoparticles for antimicrobial therapy. Drug Deliv Transl Res 2021; 11:1598-1624. [PMID: 33675007 DOI: 10.1007/s13346-021-00921-w] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/20/2021] [Indexed: 12/24/2022]
Abstract
Bacterial infections are an imminent global healthcare threat evolving from rapidly advancing bacterial defence mechanisms that antibiotics fail to overcome. Antibiotics have been designed for systemic administration to target planktonic bacteria, leading to difficulties in reaching the site of localized bacterial infection and an inability to overcome the biological, chemical and physical barriers of bacteria, including biofilms, intracellular infections and antimicrobial resistance. The amphiphilic, biomimetic and antimicrobial properties of lipids provide a promising toolbox to innovate and advance antimicrobial therapies, overcoming the barriers presented by bacteria in order to directly and effectively treat recalcitrant infections. Nanoparticulate lipid-based drug delivery systems can enhance antibiotic permeation through the chemical and physical barriers of bacterial infections, as well as fuse with bacterial cell membranes, release antibiotics in response to bacteria and act synergistically with loaded antibiotics to enhance the total antimicrobial efficacy. This review explores the barriers presented by bacterial infections that pose bio-pharmaceutical challenges to antibiotics and how different structural and functional mechanisms of lipids can enhance antimicrobial therapies. Different nanoparticulate lipid-based systems are presented as valuable drug delivery systems to advance the efficacy of antibiotics, including liposomes, liquid crystalline nanoparticles, solid lipid nanoparticles, nanostructured lipid carriers and lipid nanocarriers. In summary, liquid crystalline nanoparticles are emerging with the greatest potential for clinical applications and commercial success as an "all-rounder" advanced lipid-based antimicrobial therapy that overcomes the multiple biological, chemical and physical barriers of bacteria.
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Affiliation(s)
- Chelsea R Thorn
- Clinical and Health Science, University of South Australia, City East Campus, Adelaide, SA, 5000, Australia.,The Basil Hetzel Institute for Translational Health Research, Woodville, SA, 5011, Australia.,ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, University of South Australia, SA, 5000, Adelaide, Australia
| | - Nicky Thomas
- Clinical and Health Science, University of South Australia, City East Campus, Adelaide, SA, 5000, Australia.,The Basil Hetzel Institute for Translational Health Research, Woodville, SA, 5011, Australia.,ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, University of South Australia, SA, 5000, Adelaide, Australia
| | - Ben J Boyd
- ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, University of South Australia, SA, 5000, Adelaide, Australia.,Drug Delivery Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Pde, Parkville, VIC, 3052, Australia
| | - Clive A Prestidge
- Clinical and Health Science, University of South Australia, City East Campus, Adelaide, SA, 5000, Australia. .,ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, University of South Australia, SA, 5000, Adelaide, Australia.
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18
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Ibrahim UH, Devnarain N, Govender T. Biomimetic strategies for enhancing synthesis and delivery of antibacterial nanosystems. Int J Pharm 2021; 596:120276. [DOI: 10.1016/j.ijpharm.2021.120276] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/09/2020] [Accepted: 12/19/2020] [Indexed: 12/19/2022]
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19
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Chantadee T, Santimaleeworagun W, Phorom Y, Phaechamud T. Saturated Fatty Acid-Based In Situ Forming Matrices for Localized Antimicrobial Delivery. Pharmaceutics 2020; 12:pharmaceutics12090808. [PMID: 32854439 PMCID: PMC7559323 DOI: 10.3390/pharmaceutics12090808] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/13/2020] [Accepted: 08/21/2020] [Indexed: 02/06/2023] Open
Abstract
In recent years, the world has faced the issue of antibiotic resistance. Methicillin-resistant Staphylococcus aureus (MRSA) is a significant problem in various treatments and control of infections. Biocompatible materials with saturated fatty acids of different chain lengths (C8-C18) were studied as matrix formers of localized injectable vancomycin HCl (VCM)-loaded antisolvent-induced in situ forming matrices. The series of fatty acid-based in situ forming matrices showed a low viscosity (5.47-13.97 cPs) and pH value in the range of 5.16-6.78, with high injectability through a 27-G needle (1.55-3.12 N). The preparations exhibited low tolerance to high concentrations of KH2PO4 solution (1.88-5.42% v/v) and depicted an electrical potential change during phase transformation. Their phase transition and matrix formation at the microscopic and macroscopic levels depended on the chain length of fatty acids and solvent characteristics. The VCM release pattern depended on the nucleation/crystallization and solvent exchange behaviors of the delivery system. The 35% w/v of C12-C16 fatty acid-based in situ forming matrix prolonged the VCM release over seven days in which C12, C14, C16 -based formulation reached 56, 84, and 85% cumulative drug release at 7th day. The release data fitted well with Higuchi's model. The developed formulations presented efficient antimicrobial activities against standard S. aureus, MRSA, Escherichia coli, and Candida albicans. Hence, VCM-loaded antisolvent-induced fatty acid-based in situ forming matrix is a potential local delivery system for the treatment of local Gram-positive infection sites, such as joints, eyes, dermis of surgery sites, etc., in the future.
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Affiliation(s)
- Takron Chantadee
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand
- Correspondence: (T.C.); (T.P.); Tel.: +66-034-255800 (T.C. & T.P.)
| | - Wichai Santimaleeworagun
- Department of Pharmacy, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand;
| | - Yaowaruk Phorom
- Secretary Office of Faculty, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand;
| | - Thawatchai Phaechamud
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand
- Natural Bioactive and Material for Health Promotion and Drug Delivery System Group (NBM Group), Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand
- Correspondence: (T.C.); (T.P.); Tel.: +66-034-255800 (T.C. & T.P.)
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Optimal formation of uniform-phase supported lipid bilayers from phospholipid–monoglyceride bicellar mixtures. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2020.04.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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van Staden D, du Plessis J, Viljoen J. Development of a Self-Emulsifying Drug Delivery System for Optimized Topical Delivery of Clofazimine. Pharmaceutics 2020; 12:E523. [PMID: 32521671 PMCID: PMC7356627 DOI: 10.3390/pharmaceutics12060523] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/27/2020] [Accepted: 06/02/2020] [Indexed: 11/24/2022] Open
Abstract
A quality-by-design and characterization approach was followed to ensure development of self-emulsifying drug delivery systems (SEDDSs) destined for topical delivery of the highly lipophilic clofazimine. Solubility and water-titration experiments identified spontaneous emulsification capacity of different excipient combinations and clofazimine. After identifying self-emulsification regions, check-point formulations were selected within the self-emulsification region by considering characteristics required to achieve optimized topical drug delivery. Check-point formulations, able to withstand phase separation after 24 h at an ambient temperature, were subjected to characterization studies. Experiments involved droplet size evaluation; size distribution; zeta-potential; self-emulsification time and efficacy; viscosity and pH measurement; cloud point assessment; and thermodynamic stability studies. SEDDSs with favorable properties, i.e., topical drug delivery, were subjected to dermal diffusion studies. Successful in vitro topical clofazimine delivery was observed. Olive oil facilitated the highest topical delivery of clofazimine probably due to increased oleic acid levels that enhanced stratum corneum lipid disruption, followed by improved dermal clofazimine delivery. Finally, isothermal microcalometric experiments studied the compatibility of excipients. Potential interactions were depicted between argan oil and clofazimine as well as between Span®60 and argan-, macadamia- and olive oil, respectively. However, despite some mundane incompatibilities, successful development of topical SEDDSs achieved enhanced topical clofazimine delivery.
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Affiliation(s)
| | | | - Joe Viljoen
- Faculty of Health Sciences, Centre of Excellence for Pharmaceutical Sciences (PharmacenTM), Building G16, North-West University, 11 Hoffman Street, Potchefstroom, North-West Province 2520, South Africa; (D.v.S.); (J.d.P.)
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Chantadee T, Santimaleeworagun W, Phorom Y, Chuenbarn T, Phaechamud T. Vancomycin HCl-loaded lauric acid in situ-forming gel with phase inversion for periodontitis treatment. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101615] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Zhang S, Xiong J, Lou W, Ning Z, Zhang D, Yang J. Antifungal Effect of Triglycerol Monolaurate Synthesized by Lipozyme 435-Mediated Esterification. J Microbiol Biotechnol 2020; 30:561-570. [PMID: 31986567 PMCID: PMC9728257 DOI: 10.4014/jmb.1910.10043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This study was designed to synthesize triglycerol monolaurate (TGML) with Lipozyme 435 as the catalyst, and explore its effects on the growth of Aspergillus parasiticus (A. parasiticus) and Aspergillus flavus (A. flavus) and the secretion of aflatoxin b1. The highest content of TGML (49.76%) was obtained at a molar ratio of triglycerol to lauric acid of 1.08, a reaction temperature of 84.93°C, a reaction time of 6 h and an enzyme dosage of 1.32%. After purification by molecular distillation combined with the washes with ethyl acetate and water, the purity of TGML reached 98.3%. Through characterization by electrospray-ionization mass spectrometry, infrared spectrum and nuclear magnetic resonance, the structure of TGML was identified as a linear triglycerol combined with lauroyl at the end. Finally, the inhibitory effects of TGML on the growths of A. parasiticus and A. flavus and the secretion of aflatoxin b1 were evaluated by measuring the colony diameter, the inhibition rate of mycelial growth and the content of mycotoxin in the media. The results indicated that TGML had a stronger inhibitory effects on colony growth and mycelial development of both toxic molds compared to sodium benzoate and potassium sorbate, and the secretions of toxins from A. parasiticus and A. flavus were completely suppressed when adding TGML at 10 and 5 mM, respectively. Based on the above results, TGML may be used as a substitute for traditional antifungal agents in the food industry.
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Affiliation(s)
- Song Zhang
- School of Food Science and Engineering, South China University of Technology, 381Wushan Road, Guangzhou 510641, P.R. China
| | - Jian Xiong
- School of Food Science and Engineering, South China University of Technology, 381Wushan Road, Guangzhou 510641, P.R. China
| | - Wenyong Lou
- School of Food Science and Engineering, South China University of Technology, 381Wushan Road, Guangzhou 510641, P.R. China
| | - Zhengxiang Ning
- School of Food Science and Engineering, South China University of Technology, 381Wushan Road, Guangzhou 510641, P.R. China
| | - Denghui Zhang
- Innovation Center of Bioactive Molecule Development and Application, South China Institute of Collaborative Innovation, Xuefu Road, Dongguan 221116, P.R. China
| | - Jiguo Yang
- School of Food Science and Engineering, South China University of Technology, 381Wushan Road, Guangzhou 510641, P.R. China,Corresponding author Phone: +86-13560396620 Fax: +86-0769-38822110 E-mail:
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Development of Topical/Transdermal Self-Emulsifying Drug Delivery Systems, Not as Simple as Expected. Sci Pharm 2020. [DOI: 10.3390/scipharm88020017] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Self-emulsifying drug delivery systems (SEDDSs) originated as an oral lipid-based drug delivery system with the sole purpose of improving delivery of highly lipophilic drugs. However, the revolutionary drug delivery possibilities presented by these uniquely simplified systems in terms of muco-adhesiveness and zeta-potential changing capacity lead the way forward to ground-breaking research. Contrarily, SEDDSs destined for topical/transdermal drug delivery have received limited attention. Therefore, this review is focused at utilising principles, established during development of oral SEDDSs, and tailoring them to fit evaluation strategies for an optimised topical/transdermal drug delivery vehicle. This includes a detailed discussion of how the authentic pseudo-ternary phase diagram is employed to predict phase behaviour to find the self-emulsification region most suitable for formulating topical/transdermal SEDDSs. Additionally, special attention is given to the manner of characterising oral SEDDSs compared to topical/transdermal SEDDSs, since absorption within the gastrointestinal tract and the multi-layered nature of the skin are two completely diverse drug delivery territories. Despite the advantages of the topical/transdermal drug administration route, certain challenges such as the relatively undiscovered field of skin metabolomics as well as the obstacles of choosing excipients wisely to establish skin penetration enhancement might prevail. Therefore, development of topical/transdermal SEDDSs might be more complicated than expected.
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Biphasic reaction of glycerol and oleic acid: Byproducts formation and phase transfer autocatalytic effect. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.02.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Vancomycin hydrochloride-loaded stearic acid/lauric acid in situ forming matrix for antimicrobial inhibition in patients with joint infection after total knee arthroplasty. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 115:110761. [PMID: 32600673 DOI: 10.1016/j.msec.2020.110761] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 01/20/2020] [Accepted: 02/17/2020] [Indexed: 12/24/2022]
Abstract
Knee joint infection following total knee arthroplasty (TKA) is a serious condition and the treatments are complicated. The intra-articular solvent exchange-induced in situ forming matrix is of interest for modulating the release of antibiotics with a high drug concentration and a long period of exposed time at the target site. Stearic acid (S) and lauric acid (L) at various ratios were used as matrix formers by dissolving them in biocompatible solvents such as N-methyl pyrrolidone (NMP) and dimethyl sulfoxide (DMSO). Their matrix formation behaviors in phosphate buffer (pH7.4) and hyaluronic acid (HA) solution were evaluated. Also, the density, viscosity, injectability, solvent diffusion, in vitro degradability and drug release using the dialysis tube method were investigated. The L:S ratio of 1:1 in DMSO exhibited rapid matrix formation and a remarkably low viscosity (7.67±0.03 cp) with acceptable injectability (0.608±0.027N and 0.867±0.010N through 18-G and 27-G, respectively). Vancomycin HCl (V)-loaded L/S in situ forming matrix still provided ease of injection (1.079±0.215N and 1.230±0.145N through 18-G and 27-G needle, respectively) with fatty acid matrix formation after solvent exchange within 1min, whilst V sustainably released over 6days. It also presented effective antimicrobial activities against standard Staphylococcus aureus and methicillin-resistant Staphylococcus aureus strains. Therefore, V-loaded solvent exchange-induced in situ forming matrix using L and S as the matrix formers may be a potential local delivery system for treating knee joint infections occurring after TKA in the future.
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Zhang Q, Wu W, Zhang J, Xia X. Antimicrobial lipids in nano-carriers for antibacterial delivery. J Drug Target 2019; 28:271-281. [PMID: 31613147 DOI: 10.1080/1061186x.2019.1681434] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Antimicrobial lipids have been recognised as broad-spectrum antibacterial agents. They can directly act on and lyse bacterial cell membrane, and inhibit bacterial growth through a range of mechanisms. Antimicrobial lipids include free fatty acids, monoglycerides, cholesteryl ester, sphingolipids and etc., with the first two being the most extensively studied. Their application is usually hindered by the low solubility of the compounds themselves, and nano-sized lipid-based carriers can endow druggability to these antimicrobial agents for they improve lipid solubility and dispersion in aqueous formulations. Nano-carriers also possess advantages in overcoming drug resistance. In this review we will discuss different kinds of antimicrobial lipids in nano-sized carriers for antibacterial delivery. CAL02 as a promising infection-controlling liposome consisted of cholesterol and sphingomyelin will also be included for it's a unique anti-infection approach, which signifies that the underlying antibacterial roles antimicrobial lipids needs to be further addressed. With the global emergence of antibiotic resistance, antimicrobial lipids formulated in nano-carriers might provide a novel alternative in combatting infectious diseases.
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Affiliation(s)
- Qianyu Zhang
- Innovative Drug Research Centre (IDRC), School of Pharmaceutical Sciences, Chongqing University, Chongqing, China
| | - Wen Wu
- Innovative Drug Research Centre (IDRC), School of Pharmaceutical Sciences, Chongqing University, Chongqing, China
| | - Jinqiang Zhang
- Innovative Drug Research Centre (IDRC), School of Pharmaceutical Sciences, Chongqing University, Chongqing, China
| | - Xuefeng Xia
- Innovative Drug Research Centre (IDRC), School of Pharmaceutical Sciences, Chongqing University, Chongqing, China
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Al-Bakri AG, Mahmoud NN. Photothermal-Induced Antibacterial Activity of Gold Nanorods Loaded into Polymeric Hydrogel against Pseudomonas aeruginosa Biofilm. Molecules 2019; 24:E2661. [PMID: 31340472 PMCID: PMC6680386 DOI: 10.3390/molecules24142661] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/18/2019] [Accepted: 07/19/2019] [Indexed: 02/07/2023] Open
Abstract
In this study, the photothermal-induced bactericidal activity of phospholipid-decorated gold nanorods (DSPE-AuNR) suspension against Pseudomonas aeruginosa planktonic and biofilm cultures was investigated. We found that the treatment of planktonic culture of Pseudomonas aeruginosa with DSPE-AuNR suspension (0.25-0.03 nM) followed by a continuous laser beam exposure resulted in ~6 log cycle reduction of the bacterial viable count in comparison to the control. The percentage reduction of Pseudomonas aeruginosa biofilm viable count was ~2.5-6.0 log cycle upon laser excitation with different concentrations of DSPE-AuNR as compared to the control. The photothermal ablation activity of DSPE-AuNR (0.125 nM) loaded into poloxamer 407 hydrogel against Pseudomonas aeruginosa biofilm resulted in ~4.5-5 log cycle reduction in the biofilm viable count compared to the control. Moreover, transmission electron microscope (TEM) images of the photothermally-treated bacteria revealed a significant change in the bacterial shape and lysis of the bacterial cell membrane in comparison to the untreated bacteria. Furthermore, the results revealed that continuous and pulse laser beam modes effected a comparable photothermal-induced bactericidal activity. Therefore, it can be concluded that phospholipid-coated gold nanorods present a promising nanoplatform to eradicate Pseudomonas aeruginosa biofilm responsible for common skin diseases.
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Affiliation(s)
- Amal G Al-Bakri
- School of Pharmacy, The University of Jordan, Amman 11942, Jordan.
| | - Nouf N Mahmoud
- Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman 11733, Jordan
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Fluoroquinolone Amorphous Polymeric Salts and Dispersions for Veterinary Uses. Pharmaceutics 2019; 11:pharmaceutics11060268. [PMID: 31181834 PMCID: PMC6631417 DOI: 10.3390/pharmaceutics11060268] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 06/03/2019] [Accepted: 06/06/2019] [Indexed: 11/30/2022] Open
Abstract
Enrofloxacin (ENRO) is a poorly soluble drug used in veterinary medicine. It differs from the more widely used fluoroquinolone ciprofloxacin (CIP) by the presence of an ethyl substituent on its piperazine amino group. While a number of recent studies have examined amorphous composite formulations of CIP, little research has been conducted with ENRO in this area. Therefore, the main purpose of this work was to produce amorphous solid dispersions (ASDs) of ENRO. The solid-state properties of these samples were investigated and compared to those of the equivalent CIP ASDs, and their water uptake behavior, solubility, dissolution, and antibacterial activity were assessed. Like CIP, X-ray amorphous solid dispersions were obtained when ENRO was ball milled with acidic polymers, whereas the use of neutral polymers resulted in semi-crystalline products. Proton transfer from the carboxylic acids of the polymers to the tertiary amine of ENRO’s piperazine group appears to occur in the ASDs, resulting in an ionic bond between the two components. Therefore, these ASDs can be referred to as amorphous polymeric salts (APSs). The glass transition temperatures of the APSs were significantly higher than that of ENRO, and they were also resistant to crystallization when exposed to high humidity levels. Greater concentrations were achieved with the APSs than the pure drug during solubility and dissolution studies, and this enhancement was sustained for the duration of the experiments. In addition, the antimicrobial activity of ENRO was not affected by APS formation, while the minimum inhibitory concentrations and minimum bactericidal concentrations obtained with the APS containing hydroxypropyl methylcellulose acetate succinate grade MG (HPMCAS-MG) were significantly lower than those of the pure drug. Therefore, APS formation is one method of improving the pharmaceutical properties of this drug.
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Villarreal-Lara R, Rodríguez-Sánchez DG, Díaz De La Garza RI, García-Cruz MI, Castillo A, Pacheco A, Hernández-Brenes C. Purified avocado seed acetogenins: Antimicrobial spectrum and complete inhibition of Listeria monocytogenes in a refrigerated food matrix. CYTA - JOURNAL OF FOOD 2019. [DOI: 10.1080/19476337.2019.1575908] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Raúl Villarreal-Lara
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Monterrey, N.L., México
| | | | | | | | - Alejandro Castillo
- Department of Animal Science, Texas A&M University, College Station, TX, USA
| | - Adriana Pacheco
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Monterrey, N.L., México
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Håkansson J, Ringstad L, Umerska A, Johansson J, Andersson T, Boge L, Rozenbaum RT, Sharma PK, Tollbäck P, Björn C, Saulnier P, Mahlapuu M. Characterization of the in vitro, ex vivo, and in vivo Efficacy of the Antimicrobial Peptide DPK-060 Used for Topical Treatment. Front Cell Infect Microbiol 2019; 9:174. [PMID: 31192163 PMCID: PMC6548878 DOI: 10.3389/fcimb.2019.00174] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 05/08/2019] [Indexed: 12/26/2022] Open
Abstract
Antimicrobial peptides, also known as host defense peptides, have recently emerged as a promising new category of therapeutic agents for the treatment of infectious diseases. This study evaluated the preclinical in vitro, ex vivo, and in vivo antimicrobial activity, as well as the potential to cause skin irritation, of human kininogen-derived antimicrobial peptide DPK-060 in different formulations designed for topical delivery. We found that DPK-060 formulated in acetate buffer or poloxamer gel caused a marked reduction of bacterial counts of Staphylococcus aureus in vitro (minimum microbicidal concentration <5 μg/ml). We also found that DPK-060 in poloxamer gel significantly suppressed microbial survival in an ex vivo wound infection model using pig skin and in an in vivo mouse model of surgical site infection (≥99 or ≥94% reduction in bacterial counts was achieved with 1% DPK-060 at 4 h post-treatment, respectively). Encapsulation of DPK-060 in different types of lipid nanocapsules or cubosomes did not improve the bactericidal potential of the peptide under the applied test conditions. No reduction in cell viability was observed in response to administration of DPK-060 in any of the formulations tested. In conclusion, the present study confirms that DPK-060 has the potential to be an effective and safe drug candidate for the topical treatment of microbial infections; however, adsorption of the peptide to nanocarriers failed to show any additional benefits.
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Affiliation(s)
- Joakim Håkansson
- Division of Bioscience and Materials, RISE Research Institutes of Sweden, Borås, Sweden
| | - Lovisa Ringstad
- Division of Bioscience and Materials, RISE Research Institutes of Sweden, Borås, Sweden
| | - Anita Umerska
- Université de Lorraine, CITHEFOR, Nancy, France.,INSERM 1066, CNRS 6021, Université Bretagne Loire, MINT, UNIV Angers, Angers, France
| | - Jenny Johansson
- Division of Bioscience and Materials, RISE Research Institutes of Sweden, Borås, Sweden
| | - Therese Andersson
- Division of Bioscience and Materials, RISE Research Institutes of Sweden, Borås, Sweden
| | - Lukas Boge
- Division of Bioscience and Materials, RISE Research Institutes of Sweden, Borås, Sweden
| | - René T Rozenbaum
- Department of Biomedical Engineering, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Prashant K Sharma
- Department of Biomedical Engineering, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Petter Tollbäck
- Division of Bioscience and Materials, RISE Research Institutes of Sweden, Borås, Sweden
| | - Camilla Björn
- Division of Bioscience and Materials, RISE Research Institutes of Sweden, Borås, Sweden
| | - Patrick Saulnier
- INSERM 1066, CNRS 6021, Université Bretagne Loire, MINT, UNIV Angers, Angers, France
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Antimicrobial Effect of Thymus capitatus and Citrus limon var. pompia as Raw Extracts and Nanovesicles. Pharmaceutics 2019; 11:pharmaceutics11050234. [PMID: 31091818 PMCID: PMC6572595 DOI: 10.3390/pharmaceutics11050234] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 05/02/2019] [Accepted: 05/05/2019] [Indexed: 12/20/2022] Open
Abstract
In view of the increasing interest in natural antimicrobial molecules, this study screened the ability of Thymus capitatus (TC) essential oil and Citrus limon var. pompia (CLP) extract as raw extracts or incorporated in vesicular nanocarriers against Streptococcus mutans and Candida albicans. After fingerprint, TC or CLP were mixed with lecithin and water to produce liposomes, or different ratios of water/glycerol or water/propylene glycol (PG) to produce glycerosomes and penetration enhancer vesicles (PEVs), respectively. Neither the raw extracts nor the nanovesicles showed cytotoxicity against human gingival fibroblasts at all the concentrations tested (1, 10, 100 μg/mL). The disc diffusion method, MIC-MBC/MFC, time-kill assay, and transmission electron microscopy (TEM) demonstrated the highest antimicrobial potential of TC against S. mutans and C. albicans. The very high presence of the phenol, carvacrol, in TC (90.1%) could explain the lethal effect against the yeast, killing up to 70% of Candida and not just arresting its growth. CLP, rich in polyphenols, acted in a similar way to TC in reducing S. mutans, while the data showed a fungistatic rather than a fungicidal activity. The phospholipid vesicles behaved similarly, suggesting that the transported extract was not the only factor to be considered in the outcomes, but also their components had an important role. Even if other investigations are necessary, TC and CLP incorporated in nanocarriers could be a promising and safe antimicrobial in caries prevention.
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Zhang S, Xiong J, Lou W, Ning Z, Zhang D, Yang J. Antimicrobial activity and action mechanism of triglycerol monolaurate on common foodborne pathogens. Food Control 2019. [DOI: 10.1016/j.foodcont.2018.11.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Synergistic Effect of Combinations Containing EDTA and the Antimicrobial Peptide AA230, an Arenicin-3 Derivative, on Gram-Negative Bacteria. Biomolecules 2018; 8:biom8040122. [PMID: 30360557 PMCID: PMC6315934 DOI: 10.3390/biom8040122] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 10/18/2018] [Accepted: 10/19/2018] [Indexed: 01/24/2023] Open
Abstract
The worldwide occurrence of resistance to standard antibiotics and lack of new antibacterial drugs demand new strategies to treat complicated infections. Hence, the aim of this study was to examine the antibacterial activities of an antimicrobial peptide, arenicin-3 derivative AA230, and ethylenediaminetetraacetic acid (EDTA) as well as the two compounds in combination against Gram-negative bacteria. AA230 showed strong antibacterial activity against all of the studied standard strains and clinical isolates, with minimum inhibitory concentrations ranging between 1 µg/mL and 8 µg/mL. AA230 exhibited a bactericidal mode of action. EDTA inhibited the growth of Acinetobacter baumannii at 500–1000 µg/mL. Strains of Acinetobacter baumannii were found to be more susceptible to EDTA than Pseudomonas aeruginosa or Escherichia coli. The antibacterial effects of both AA230 and EDTA were independent of the antibiotic resistance patterns. Indifference to synergistic activity was observed for AA230 and EDTA combinations using checkerboard titration. In time-kill studies, a substantial synergistic interaction between AA230 and EDTA was detected against all of the tested strains. The addition of EDTA enabled a 2–4-fold decrease in the AA230 dose. In conclusion, AA230 could have potential applications in the treatment of infections caused by Gram-negative organisms, and its effect can be potentiated by EDTA.
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Athanázio-Heliodoro JC, Okino-Delgado CH, Fernandes CJDC, Zanutto MR, Prado DZD, da Silva RA, Facanali R, Zambuzzi WF, Marques MOM, Fleuri LF. Improvement of lipase obtaining system by orange waste-based solid-state fermentation: production, characterization and application. Prep Biochem Biotechnol 2018; 48:565-573. [DOI: 10.1080/10826068.2018.1476879] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
| | - Clarissa Hamaio Okino-Delgado
- Chemistry and Biochemistry Department, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | | | - Mirella Rossitto Zanutto
- Chemistry and Biochemistry Department, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Débora Zanoni do Prado
- Chemistry and Biochemistry Department, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Rodrigo Augusto da Silva
- Chemistry and Biochemistry Department, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | | | - Willian Fernando Zambuzzi
- Chemistry and Biochemistry Department, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | | | - Luciana Francisco Fleuri
- Chemistry and Biochemistry Department, Institute of Biosciences, São Paulo State University (UNESP), Botucatu, SP, Brazil
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Churchward CP, Alany RG, Snyder LAS. Alternative antimicrobials: the properties of fatty acids and monoglycerides. Crit Rev Microbiol 2018; 44:561-570. [PMID: 29733249 DOI: 10.1080/1040841x.2018.1467875] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
With the rising antibiotic resistance of many bacterial species, alternative treatments are necessary to combat infectious diseases. The World Health Organization and the US Centres for Disease Control and Prevention have warned that some infections, such as those from Neisseria gonorrhoeae, may be untreatable within a few years. One avenue of exploration is the use of antimicrobial fatty acids and their derivatives for therapeutic prevention or treatment of bacterial infections. Several studies have explored the activity of fatty acids and their derivatives, including monoglycerides against a variety of bacterial species. These are reviewed here, assessing the antimicrobial properties that have been demonstrated and the feasibility of therapeutic applications.
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Affiliation(s)
- Colin P Churchward
- a School of Life Sciences, Pharmacy, and Chemistry , Kingston University , Kingston upon Thames , UK
| | - Raid G Alany
- a School of Life Sciences, Pharmacy, and Chemistry , Kingston University , Kingston upon Thames , UK
| | - Lori A S Snyder
- a School of Life Sciences, Pharmacy, and Chemistry , Kingston University , Kingston upon Thames , UK
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37
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Boge L, Västberg A, Umerska A, Bysell H, Eriksson J, Edwards K, Millqvist-Fureby A, Andersson M. Freeze-dried and re-hydrated liquid crystalline nanoparticles stabilized with disaccharides for drug-delivery of the plectasin derivative AP114 antimicrobial peptide. J Colloid Interface Sci 2018; 522:126-135. [PMID: 29587194 DOI: 10.1016/j.jcis.2018.03.062] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 03/14/2018] [Accepted: 03/18/2018] [Indexed: 11/25/2022]
Abstract
Liquid crystalline nanoparticles (LCNPs), e.g. cubosomes and hexosomes, are receiving more and more attraction as drug delivery vehicles. Dry powder formulation that forms LCNPs upon hydration can be advantageous to make new routes of administration accessible. In this work, we investigate use of three disaccharides (lactose, trehalose and sucrose) as protective matrices for glycerol monooleate based LCNP forming powders produced by freeze-drying. Phase behavior, particle size and size distributions at the different preparation steps were monitored by small angle x-ray scattering (SAXS) and dynamic light scattering (DLS). Particle appearance was imaged by cryogenic transmission electron microscopy (cryo-TEM). Moreover, the therapeutic relevant antimicrobial peptide AP114 (plectasin derivative) was incorporated in the formulations. Peptide encapsulation and release as well as in vitro antibacterial effect were investigated. Results showed that all freeze-dried powders did form particles with liquid crystalline structure upon hydration. However, a phase transition from the bicontinuous cubic Pn3m to the reversed hexagonal was observed, as a consequence of sugar addition and the freeze-drying procedure. Data indicates that trehalose is the preferred choice of lyo-protectant in order to maintain a mono-modal particle size distribution. In addition, antimicrobial activity of AP114-containing formulations was found to be highest for the formulation containing trehalose. The release kinetics of AP114 from the nanoparticles was strongly affected by the dimensions of the hexagonal phase. Larger dimension of the hexagonal phase, significantly improved the release of AP114 and antimicrobial activity of the formulation.
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Affiliation(s)
- Lukas Boge
- RISE Research Institutes of Sweden, Drottning Kristinas väg 45, Box 5607 Stockholm SE-11486, Sweden; Department of Chemistry and Chemical Engineering, Applied Chemistry, Chalmers University of Technology, Kemigården 4, Göteborg SE-41296, Sweden.
| | - Amanda Västberg
- RISE Research Institutes of Sweden, Drottning Kristinas väg 45, Box 5607 Stockholm SE-11486, Sweden
| | - Anita Umerska
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, 4 rue Larrey, Angers 49933 Cedex, France
| | - Helena Bysell
- RISE Research Institutes of Sweden, Drottning Kristinas väg 45, Box 5607 Stockholm SE-11486, Sweden
| | - Jonny Eriksson
- Department of Chemistry - BMC, Uppsala University, Husargatan 3 Box 579, Uppsala SE-75123, Sweden
| | - Katarina Edwards
- Department of Chemistry - BMC, Uppsala University, Husargatan 3 Box 579, Uppsala SE-75123, Sweden
| | - Anna Millqvist-Fureby
- RISE Research Institutes of Sweden, Drottning Kristinas väg 45, Box 5607 Stockholm SE-11486, Sweden
| | - Martin Andersson
- Department of Chemistry and Chemical Engineering, Applied Chemistry, Chalmers University of Technology, Kemigården 4, Göteborg SE-41296, Sweden
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38
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Nehme H, Saulnier P, Ramadan AA, Cassisa V, Guillet C, Eveillard M, Umerska A. Antibacterial activity of antipsychotic agents, their association with lipid nanocapsules and its impact on the properties of the nanocarriers and on antibacterial activity. PLoS One 2018; 13:e0189950. [PMID: 29298353 PMCID: PMC5752010 DOI: 10.1371/journal.pone.0189950] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Accepted: 12/05/2017] [Indexed: 11/18/2022] Open
Abstract
Bacterial antibiotic resistance is an emerging public health problem worldwide; therefore, new therapeutic strategies are needed. Many studies have described antipsychotic compounds that present antibacterial activity. Hence, the aims of this study were to evaluate the in vitro antibacterial activity of antipsychotics belonging to different chemical families, to assess the influence of their association with lipid nanocapsules (LNCs) on their antimicrobial activity as well as drug release and to study the uptake of LNCs by bacterial cells. Antibacterial activity was evaluated against Gram-positive Staphylococcus aureus and Gram negative Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae and Acinetobacter baumannii by minimum inhibitory concentration (MIC) assay, and the capability of killing tested microorganisms was evaluated by time kill assay. LNCs were prepared by phase inversion method, and the antipsychotic agents were incorporated using pre-loading and post-loading strategies. Only phenothiazines and thioxanthenes showed antibacterial activity, which was independent of antibiotic-resistance patterns. Loading the nanocarriers with the drugs affected the properties of the former, particularly their zeta potential. The release rate depended on the drug and its concentration-a maximum of released drug of less than 40% over 24 hours was observed for promazine. The influence of the drug associations on the antibacterial properties was concentration-dependent since, at low concentrations (high nanocarrier/drug ratio), the activity was lost, probably due to the high affinity of the drug to nanocarriers and slow release rate, whereas at higher concentrations, the activity was well maintained for the majority of the drugs. Chlorpromazine and thioridazine increased the uptake of the LNCs by bacteria compared with blank LNCs, even below the minimum inhibitory concentration.
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Affiliation(s)
- Hassan Nehme
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, France
| | - Patrick Saulnier
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, France
| | - Alyaa A. Ramadan
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, France
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | | | - Catherine Guillet
- Service Commun de Cytometrie et d’analyse Nucleotidique (SCCAN), IFR 132, IBS–CHU, Angers, France
| | - Matthieu Eveillard
- Equipe ATIP AVENIR, CRCINA, Inserm, Université de Nantes, Université d'Angers, Angers, France
| | - Anita Umerska
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, France
- Université de Lorraine, CITHEFOR, EA, Nancy, France
- * E-mail:
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39
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Hureaux J, Lacoeuille F, Lagarce F, Rousselet MC, Contini A, Saulnier P, Benoit JP, Urban T. Absence of lung fibrosis after a single pulmonary delivery of lipid nanocapsules in rats. Int J Nanomedicine 2017; 12:8159-8170. [PMID: 29184405 PMCID: PMC5687496 DOI: 10.2147/ijn.s146740] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Lipid nanocapsules (LNCs) are potential drug carriers for pulmonary delivery since they can be nebulized without any structural or functional changes, and the aerosols produced are highly compatible with pulmonary drug delivery in human beings. The alveolar surface tension, in vitro cytotoxicity, biodistribution and pulmonary toxicity in rats of a single endotracheal spray of LNCs or paclitaxel-loaded LNCs were studied. In vitro cytotoxicity of LNCs after a spray remained unchanged. Biodistribution study showed a homogeneous repartition in the lungs in rats with an improvement in lung retention of the radiolabeled tracer loaded in LNCs compared to the absence of LNCs with a lung half-time of 8.8±0.7 hours. Bronchoalveolar fluid analysis revealed transient 7-day alveolar inflammation, reaching a maximum between days 2 and 4, characterized by a peak of granulocytes at day 1 followed by a peak of lymphocytes at day 3. Alveolar protein levels were increased at days 3 and 7. Acute inflammation was increased with paclitaxel-loaded LNCs in comparison with blank LNCs but dropped out at day 7. No histological pulmonary lesion was observed at day 60. LNCs lowered surface tension to a greater degree than Curosurf® in a physicochemical model of the pulmonary alveolus. A single pulmonary delivery of LNCs induces a short-term alveolar inflammation with no residual lesions in rats at day 60. These data permit to start the study of LNCs in surfactant replacement therapy.
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Affiliation(s)
- José Hureaux
- Unité Micro et Nanomédecines Biomimétiques (MINT), Université d'Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire.,Université d'Angers, CHU, Pôle Hippocrate, Service de Pneumologie
| | - Franck Lacoeuille
- Université d'Angers, CHU, Pôle Signal Image Stérilisation, Service de Médecine nucléaire.,CRCINA, Université Nantes Université Angers
| | - Frédéric Lagarce
- Unité Micro et Nanomédecines Biomimétiques (MINT), Université d'Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire.,Université d'Angers, CHU, Pôle Hippocrate, Pharmacie
| | - Marie-Christine Rousselet
- Université d'Angers, CHU, Pôle de Biologie-Pathologie, Département de Cytologie et d'Histologie Pathologique
| | - Aurélien Contini
- Université d'Angers, CHU, Pôle Signal Image Stérilisation, Service de Médecine nucléaire.,CRCINA, Université Nantes Université Angers
| | - Patrick Saulnier
- Unité Micro et Nanomédecines Biomimétiques (MINT), Université d'Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire.,Université d'Angers, CHU, Service la Recherche Clinique et Innovation, Angers, France
| | - Jean-Pierre Benoit
- Unité Micro et Nanomédecines Biomimétiques (MINT), Université d'Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire.,Université d'Angers, CHU, Pôle Hippocrate, Pharmacie
| | - Thierry Urban
- Unité Micro et Nanomédecines Biomimétiques (MINT), Université d'Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire.,Université d'Angers, CHU, Pôle Hippocrate, Service de Pneumologie
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40
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Anacarso I, Quartieri A, De Leo R, Pulvirenti A. Evaluation of the antimicrobial activity of a blend of monoglycerides against Escherichia coli and Enterococci with multiple drug resistance. Arch Microbiol 2017; 200:85-89. [PMID: 28799127 DOI: 10.1007/s00203-017-1419-5] [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] [Received: 06/26/2017] [Revised: 07/24/2017] [Accepted: 07/27/2017] [Indexed: 10/19/2022]
Abstract
Bacterial antibiotic resistance is a natural phenomenon, seriously affecting the treatment of infections. The biggest danger is that current antibiotics are not able to eradicate the resistant strains. In recent years, alternative antibacterial substances are being sought, which can help in these cases. Fatty acids and monoglycerides are known among the natural substances for their antimicrobial properties and, important detail, bacteria do not develop resistance to them. In this work, we studied the antimicrobial effects of a monoglyceride blend against some multi-resistant Enterococci and Escherichia coli strains. Based on literature data, a blend of fatty acids and their monoglycerides was created and its antimicrobial activity was evaluated against 37 strains of E. coli and 17 Enterococci presenting resistance to at least two antibiotics. A different behavior was observed in the two groups of bacteria, proving that alternative substances can be considerate for the potential treatment of multidrug-resistant strains.
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Affiliation(s)
- Immacolata Anacarso
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Giovanni Amendola, 2-Padiglione Besta, 42122, Reggio Emilia, Italy
| | - Andrea Quartieri
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Giovanni Amendola, 2-Padiglione Besta, 42122, Reggio Emilia, Italy
| | - Riccardo De Leo
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Giovanni Amendola, 2-Padiglione Besta, 42122, Reggio Emilia, Italy
| | - Andrea Pulvirenti
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Giovanni Amendola, 2-Padiglione Besta, 42122, Reggio Emilia, Italy.
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41
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Mouzouvi CRA, Umerska A, Bigot AK, Saulnier P. Surface active properties of lipid nanocapsules. PLoS One 2017; 12:e0179211. [PMID: 28796777 PMCID: PMC5552112 DOI: 10.1371/journal.pone.0179211] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 05/25/2017] [Indexed: 12/16/2022] Open
Abstract
Lipid nanocapsules (LNCs) are biomimetic nanocarriers used for the encapsulation of a broad variety of active ingredients. Similar to surface active compounds, LNCs contain both hydrophilic and hydrophobic parts in their structure. Moreover, the components of LNCs, macrogol 15 hydroxystearate (MHS) and lecithin, are known for their surface active properties. Therefore, the aim of this paper was to investigate the capability of the LNCs to decrease surface tension using two techniques: drop tensiometry and the Wilhelmy plate method. LNCs with diameters ranging from 30 to 100 nm were successfully obtained using a phase inversion technique. The LNCs' properties, such as size and zeta potential, depend on the composition. LNCs exhibit a lower limiting surface tension compared to MHS (34.8-35.0 mN/m and 37.7-38.8 mN/m, respectively), as confirmed by both drop tensiometry and the Wilhelmy plate method. LNCs have exhibited a saturated interfacial concentration (SIC) that was 10-fold higher than the critical micellar concentration (CMC) of MHS or the SIC of binary and ternary mixtures of LNC ingredients. The SIC of the LNC formulations depended on the mass mixing ratio of the MHS/triglycerides but not on the presence of lecithin. The CMC/SIC values measured by the Wilhelmy plate method were higher than those obtained using drop tensiometry because of the longer duration of the tensiometry measurement. In conclusion, the surfactant-like properties of the LNCs offer new possibilities for medical and pharmaceutical applications.
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Affiliation(s)
- Celia R. A. Mouzouvi
- ‘Micro et Nanomédecines biomimétiques—MINT‘, INSERM U1066 Université d’Angers, CNRS 6021, Université Bretagne Loire, Angers, France
- Laboratoire de Pharmacie Galenique et de technologie Pharmaceutique, UFR Pharmacie, FSS, Université d’Abomey-calavi, Cotonou, Benin
| | - Anita Umerska
- ‘Micro et Nanomédecines biomimétiques—MINT‘, INSERM U1066 Université d’Angers, CNRS 6021, Université Bretagne Loire, Angers, France
| | - André K. Bigot
- Unité d’Immunologie, Faculté des Sciences de la Santé, Université d’Abomey-calavi, Cotonou, Benin
| | - Patrick Saulnier
- ‘Micro et Nanomédecines biomimétiques—MINT‘, INSERM U1066 Université d’Angers, CNRS 6021, Université Bretagne Loire, Angers, France
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42
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Umerska A, Cassisa V, Bastiat G, Matougui N, Nehme H, Manero F, Eveillard M, Saulnier P. Synergistic interactions between antimicrobial peptides derived from plectasin and lipid nanocapsules containing monolaurin as a cosurfactant against Staphylococcus aureus. Int J Nanomedicine 2017; 12:5687-5699. [PMID: 28848347 PMCID: PMC5557623 DOI: 10.2147/ijn.s139625] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Development of effective antibacterial agents for the treatment of infections caused by Gram-positive bacteria resistant to existing antibiotics, such as methicillin-resistant Staphylococcus aureus (MRSA), is an area of intensive research. In this work, the antibacterial efficacy of two antimicrobial peptides derived from plectasin, AP114 and AP138, used alone and in combination with monolaurin-lipid nanocapsules (ML-LNCs) was evaluated. Several interesting findings emerged from the present study. First, ML-LNCs and both plectasin derivatives showed potent activity against all 14 tested strains of S. aureus, independent of their resistance phenotype. Both peptides displayed a considerable adsorption (33%-62%) onto ML-LNCs without having an important impact on the particle properties such as size. The combinations of peptide with ML-LNC displayed synergistic effect against S. aureus, as confirmed by two methods: checkerboard and time-kill assays. This synergistic interaction enables a dose reduction and consequently decreases the risk of toxicity and has the potential of minimizing the development of resistance. Together, these results suggest that ML-LNCs loaded with a plectasin derivative may be a very promising drug delivery system for further development as a novel antibacterial agent against S. aureus, including MRSA.
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Affiliation(s)
- Anita Umerska
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, Cedex, France
| | | | - Guillaume Bastiat
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, Cedex, France
| | - Nada Matougui
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, Cedex, France
| | - Hassan Nehme
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, Cedex, France
| | - Florence Manero
- SCIAM (Service Commun d'Imagerie et d'Analyses Microscopiques), Angers, France
| | - Matthieu Eveillard
- Equipe ATIP AVENIR, CRCINA, Inserm, Université de Nantes, Université d'Angers, Angers, France
| | - Patrick Saulnier
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, Cedex, France
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43
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Mesallati H, Umerska A, Paluch KJ, Tajber L. Amorphous Polymeric Drug Salts as Ionic Solid Dispersion Forms of Ciprofloxacin. Mol Pharm 2017; 14:2209-2223. [PMID: 28570079 DOI: 10.1021/acs.molpharmaceut.7b00039] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Ciprofloxacin (CIP) is a poorly soluble drug that also displays poor permeability. Attempts to improve the solubility of this drug to date have largely focused on the formation of crystalline salts and metal complexes. The aim of this study was to prepare amorphous solid dispersions (ASDs) by ball milling CIP with various polymers. Following examination of their solid state characteristics and physical stability, the solubility advantage of these ASDs was studied, and their permeability was investigated via parallel artificial membrane permeability assay (PAMPA). Finally, the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of the ASDs were compared to those of CIP. It was discovered that acidic polymers, such as Eudragit L100, Eudragit L100-55, Carbopol, and HPMCAS, were necessary for the amorphization of CIP. In each case, the positively charged secondary amine of CIP was found to interact with carboxylate groups in the polymers, forming amorphous polymeric drug salts. Although the ASDs began to crystallize within days under accelerated stability conditions, they remained fully X-ray amorphous following exposure to 90% RH at 25 °C, and demonstrated higher than predicted glass transition temperatures. The solubility of CIP in water and simulated intestinal fluid was also increased by all of the ASDs studied. Unlike a number of other solubility enhancing formulations, the ASDs did not decrease the permeability of the drug. Similarly, no decrease in antibiotic efficacy was observed, and significant improvements in the MIC and MBC of CIP were obtained with ASDs containing HPMCAS-LG and HPMCAS-MG. Therefore, ASDs may be a viable alternative for formulating CIP with improved solubility, bioavailability, and antimicrobial activity.
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Affiliation(s)
- Hanah Mesallati
- Synthesis and Solid State Pharmaceutical Centre, School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin , College Green, Dublin 2, Ireland
| | - Anita Umerska
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Universite Bretagne Loire , 4 rue Larrey, Angers 49933 Cedex, France
| | - Krzysztof J Paluch
- School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford , Bradford, West Yorkshire, BD7 1DP, United Kingdom
| | - Lidia Tajber
- Synthesis and Solid State Pharmaceutical Centre, School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin , College Green, Dublin 2, Ireland
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44
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Boge L, Umerska A, Matougui N, Bysell H, Ringstad L, Davoudi M, Eriksson J, Edwards K, Andersson M. Cubosomes post-loaded with antimicrobial peptides: characterization, bactericidal effect and proteolytic stability. Int J Pharm 2017; 526:400-412. [PMID: 28476579 DOI: 10.1016/j.ijpharm.2017.04.082] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 04/25/2017] [Accepted: 04/28/2017] [Indexed: 11/27/2022]
Abstract
Novel antibiotics, such as antimicrobial peptides (AMPs), have recently attended more and more attraction. In this work, dispersed cubic liquid crystalline gel (cubosomes) was used as drug delivery vehicles for three AMPs (AP114, DPK-060 and LL-37). Association of peptides onto cubosomes was studied at two cubosome/peptide ratios using high performance liquid chromatography, ζ-potential and circular dichroism measurements. AMPs impact on the cubosome structure was investigated using small angle x-ray scattering and cryogenic transmission electron microscopy. The antimicrobial effect of the AMP loaded cubosomes was studied in vitro by minimum inhibitory concentration and time-kill assays. Proteolytic protection was investigated by incubating the formulations with two elastases and the antimicrobial effect after proteolysis was studied using radial diffusion assay. Different association efficacy onto the cubosomes was observed among the AMPs, with LL-37 showing greatest association (>60%). AP114 loaded cubosomes displayed a preserved antimicrobial effect, whereas for LL-37 the broad spectrum bacterial killing was reduced to only comprise Gram-negative bacteria. Interestingly, DPK-060 loaded cubosomes showed a slight enhanced effect against S. aureus and E. coli strains. Moreover, the cubosomes were found to protect LL-37 from proteolytic degradation, resulting in a significantly better bactericidal effect after being subjected to elastase, compared to unformulated peptide.
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Affiliation(s)
- Lukas Boge
- RISE Research Institutes of Sweden, Drottning Kristinas väg 45 Box 5607 Stockholm SE 11486, Sweden; Department of Chemistry and Chemical Engineering, Applied Chemistry, Chalmers University of Technology, Kemigården 4 Göteborg SE-41296, Sweden.
| | - Anita Umerska
- INSERM U 1066, 'Micro et Nanomédecines biomimétiques - MINT', Angers, France; Université Angers, UMR-S1066 Angers, France
| | - Nada Matougui
- INSERM U 1066, 'Micro et Nanomédecines biomimétiques - MINT', Angers, France; Université Angers, UMR-S1066 Angers, France
| | - Helena Bysell
- RISE Research Institutes of Sweden, Drottning Kristinas väg 45 Box 5607 Stockholm SE 11486, Sweden
| | - Lovisa Ringstad
- RISE Research Institutes of Sweden, Drottning Kristinas väg 45 Box 5607 Stockholm SE 11486, Sweden
| | - Mina Davoudi
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, SE-221 84 Lund, Sweden
| | - Jonny Eriksson
- Department of Chemistry - BMC, Uppsala University, Husargatan 3 Box 579 Uppsala SE-75123, Sweden
| | - Katarina Edwards
- Department of Chemistry - BMC, Uppsala University, Husargatan 3 Box 579 Uppsala SE-75123, Sweden
| | - Martin Andersson
- Department of Chemistry and Chemical Engineering, Applied Chemistry, Chalmers University of Technology, Kemigården 4 Göteborg SE-41296, Sweden
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45
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Mahlapuu M, Håkansson J, Ringstad L, Björn C. Antimicrobial Peptides: An Emerging Category of Therapeutic Agents. Front Cell Infect Microbiol 2016; 6:194. [PMID: 28083516 PMCID: PMC5186781 DOI: 10.3389/fcimb.2016.00194] [Citation(s) in RCA: 1089] [Impact Index Per Article: 136.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Accepted: 12/12/2016] [Indexed: 12/15/2022] Open
Abstract
Antimicrobial peptides (AMPs), also known as host defense peptides, are short and generally positively charged peptides found in a wide variety of life forms from microorganisms to humans. Most AMPs have the ability to kill microbial pathogens directly, whereas others act indirectly by modulating the host defense systems. Against a background of rapidly increasing resistance development to conventional antibiotics all over the world, efforts to bring AMPs into clinical use are accelerating. Several AMPs are currently being evaluated in clinical trials as novel anti-infectives, but also as new pharmacological agents to modulate the immune response, promote wound healing, and prevent post-surgical adhesions. In this review, we provide an overview of the biological role, classification, and mode of action of AMPs, discuss the opportunities and challenges to develop these peptides for clinical applications, and review the innovative formulation strategies for application of AMPs.
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Affiliation(s)
- Margit Mahlapuu
- Promore Pharma AB, Karolinska Institutet Science ParkSolna, Sweden; The Lundberg Laboratory for Diabetes Research, Department of Molecular and Clinical Medicine, The Sahlgrenska Academy at University of GothenburgGothenburg, Sweden
| | - Joakim Håkansson
- SP Technical Research Institute of Sweden, Chemistry, Materials, and Surfaces Borås, Sweden
| | - Lovisa Ringstad
- SP Technical Research Institute of Sweden, Chemistry, Materials, and Surfaces Borås, Sweden
| | - Camilla Björn
- The Lundberg Laboratory for Diabetes Research, Department of Molecular and Clinical Medicine, The Sahlgrenska Academy at University of GothenburgGothenburg, Sweden; SP Technical Research Institute of Sweden, Chemistry, Materials, and SurfacesBorås, Sweden
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