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Grosso R, Benito E, Carbajo-Gordillo AI, Díaz MJ, García-Martín MG, de-Paz MV. Advanced interpenetrating polymer networks for innovative gastroretentive formulations targeting Helicobacter pylori gastric colonization. Eur J Pharm Sci 2024; 200:106840. [PMID: 38909691 DOI: 10.1016/j.ejps.2024.106840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 04/25/2024] [Accepted: 06/20/2024] [Indexed: 06/25/2024]
Abstract
The escalating challenges of Helicobacter pylori-induced gastric complications, driven by rising antibiotic resistance and persistent cancer risks, underscore the demand for innovative therapeutic strategies. This study addresses this urgency through the development of tailored semi-interpenetrating polymer networks (semi-IPN) serving as gastroretentive matrices for amoxicillin (AMOX). They are biodegradable, absorb significant volume of simulated gastric fluid (swelling index > 360 %) and exhibit superporous microstructures, remarkable mucoadhesion, and buoyancy. The investigation includes assessment at pH 1.2 for comparative analysis with prior studies and, notably, at pH 5.0, reflecting the acidic environment in H. pylori-infected stomachs. The semi-IPN demonstrated gel-like structures, maintaining integrity throughout the 24-hour controlled release study, and disintegrating upon completing their intended function. Evaluated in gastroretentive drug delivery system performance, AMOX release at pH 1.2 and pH 5.0 over 24 h (10 %-100 %) employed experimental design methodology, elucidating dominant release mechanisms. Their mucoadhesive, buoyant, three-dimensional scaffold stability, and gastric biodegradability make them ideal for accommodating substantial AMOX quantities. Furthermore, exploring the inclusion of the potassium-competitive acid blocker (P-CAB) vonoprazan (VONO) in AMOX-loaded formulations shows promise for precise and effective drug delivery. This innovative approach has the potential to combat H. pylori infections, thereby preventing the gastric cancer induced by this pathogen.
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Affiliation(s)
- Roberto Grosso
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, C/ Prof. García González, n. 2, 41012, Seville, Spain
| | - Elena Benito
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, C/ Prof. García González, n. 2, 41012, Seville, Spain.
| | - Ana I Carbajo-Gordillo
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, C/ Prof. García González, n. 2, 41012, Seville, Spain
| | | | - M Gracia García-Martín
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, C/ Prof. García González, n. 2, 41012, Seville, Spain
| | - M-Violante de-Paz
- Departamento de Química Orgánica y Farmacéutica, Facultad de Farmacia, Universidad de Sevilla, C/ Prof. García González, n. 2, 41012, Seville, Spain.
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2
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Chitas R, Fonseca DR, Parreira P, Martins MCL. Targeted nanotherapeutics for the treatment of Helicobacter pylori infection. J Biomed Sci 2024; 31:78. [PMID: 39128983 DOI: 10.1186/s12929-024-01068-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Accepted: 07/16/2024] [Indexed: 08/13/2024] Open
Abstract
Helicobacter pylori infection is involved in gastric diseases such as peptic ulcer and adenocarcinoma. Approved antibiotherapies still fail in 10 to 40% of the infected patients and, in this scenario, targeted nanotherapeutics emerged as powerful allies for H. pylori eradication. Nano/microparticles conjugated with H. pylori binding molecules were developed to eliminate H. pylori by either (i) blocking essential mechanisms of infection, such as adhesion to gastric mucosa or (ii) binding and killing H. pylori through the release of drugs within the bacteria or at the site of infection. Glycan antigens (as Lewis B and sialyl-Lewis X), pectins, lectins, phosphatidylethanolamine and epithelial cell membranes were conjugated with nano/microparticles to successfully block H. pylori adhesion. Urea-coated nanoparticles were used to improve drug delivery inside bacteria through H. pylori UreI channel. Moreover, nanoparticles coated with antibodies against H. pylori and loaded with sono/photosensitizers, were promising for their application as targeted sono/photodynamic therapies. Further, non-specific H. pylori nano/microparticles, but only active in the acidic gastric environment, coated with binders to bacterial membrane, extracellular polymeric substances or to high temperature requirement A protease, were evaluated. In this review, an overview of the existing nanotherapeutics targeting H. pylori will be given and their rational, potential to counteract infection, as well as level of development will be presented and discussed.
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Affiliation(s)
- Rute Chitas
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Diana R Fonseca
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- FEUP - Faculdade de Engenharia, Departamento de Engenharia Metalúrgica e de Materiais, Universidade do Porto, Porto, Portugal
| | - Paula Parreira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
| | - M Cristina L Martins
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal.
- ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal.
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3
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Spósito L, Fonseca D, Gonçalves Carvalho S, Sábio RM, Marena GD, Bauab TM, Bagliotti Meneguin A, Parreira P, L Martins MC, Chorilli M. Engineering resveratrol-loaded chitosan nanoparticles for potential use against Helicobacter pylori infection. Eur J Pharm Biopharm 2024; 199:114280. [PMID: 38588828 DOI: 10.1016/j.ejpb.2024.114280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 04/04/2024] [Accepted: 04/05/2024] [Indexed: 04/10/2024]
Abstract
Helicobacter pylori (H. pylori) is a microorganism directly linked to severe clinical conditions affecting the stomach. The virulence factors and its ability to form biofilms increase resistance to conventional antibiotics, growing the need for new substances and strategies for the treatment of H. pylori infection. The trans-resveratrol (RESV), a bioactive polyphenol from natural sources, has a potential activity against this gastric pathogen. Here, Chitosan nanoparticles (NP) containing RESV (RESV-NP) were developed for H. pylori management. The RESV-NP were prepared using the ionic gelation method and characterized by Dynamic Light Scattering (DLS), Nanoparticle Tracking Analysis (NTA) and, Cryogenic Transmission Electron Microscopy (Cryo - TEM). The encapsulation efficiency (EE) and in vitro release rate of RESV were quantified using high-performance liquid chromatography (HPLC). RESV-NP performance against H. pylori was evaluated by the quantification of the minimum inhibitory/bactericidal concentrations (MIC/MBC), time to kill, alterations in H. pylori morphology in its planktonic form, effects against H. pylori biofilm and in an in vitro infection model. RESV-NP cytotoxicity was evaluated against AGS and MKN-74 cell lines and by hemolysis assay. Acute toxicity was tested using Galleria mellonella model assays. RESV-NP showed a spherical shape, size of 145.3 ± 24.7 nm, polydispersity index (PDI) of 0.28 ± 0.008, and zeta potential (ZP) of + 16.9 ± 1.81 mV in DLS, while particle concentration was 3.12 x 1011 NP/mL (NTA). RESV-NP EE was 72 %, with full release within the first 5 min. In microbiological assays, RESV-NP presented a MIC/MBC of 3.9 µg/mL, a time to kill of 24 h for complete eradication of H. pylori. At a concentration of 2xMIC (7.8 µg/mL), RESV-NP completely eradicated the H. pylori biofilm, and in an in vitro infection model, RESV-NP (4xMIC - 15.6 µg/mL) showed a significant decrease in bacterial load (1 Log10CFU/mL) when compared to the H. pylori J99 control. In addition, they did not demonstrate a toxic character at MIC concentration for both cell lines. The use of the RESV-NP with mucoadhesion profile is an interesting strategy for oral administration of substances targeting gastric disorders, linked to H. pylori infections.
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Affiliation(s)
- Larissa Spósito
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Department of Drugs and Medicines, Araraquara, SP, Brazil; São Paulo State University (UNESP), School of Pharmaceutical Sciences, Department of Biological Sciences, Araraquara, SP, Brazil; i3S-Instituto de Investigação e Inovação em Saúde, Rua Alfredo Allen, 208, Porto 4200-135, Portugal; INEB-Instituto de Engenharia Biomédica, Rua Alfredo Allen, 208, Porto 4200-135, Portugal
| | - Diana Fonseca
- i3S-Instituto de Investigação e Inovação em Saúde, Rua Alfredo Allen, 208, Porto 4200-135, Portugal; INEB-Instituto de Engenharia Biomédica, Rua Alfredo Allen, 208, Porto 4200-135, Portugal
| | - Suzana Gonçalves Carvalho
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Department of Drugs and Medicines, Araraquara, SP, Brazil
| | - Rafael Miguel Sábio
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Department of Drugs and Medicines, Araraquara, SP, Brazil
| | - Gabriel Davi Marena
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Department of Drugs and Medicines, Araraquara, SP, Brazil; São Paulo State University (UNESP), School of Pharmaceutical Sciences, Department of Biological Sciences, Araraquara, SP, Brazil
| | - Taís Maria Bauab
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Department of Biological Sciences, Araraquara, SP, Brazil
| | - Andréia Bagliotti Meneguin
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Department of Drugs and Medicines, Araraquara, SP, Brazil
| | - Paula Parreira
- i3S-Instituto de Investigação e Inovação em Saúde, Rua Alfredo Allen, 208, Porto 4200-135, Portugal; INEB-Instituto de Engenharia Biomédica, Rua Alfredo Allen, 208, Porto 4200-135, Portugal
| | - M Cristina L Martins
- i3S-Instituto de Investigação e Inovação em Saúde, Rua Alfredo Allen, 208, Porto 4200-135, Portugal; INEB-Instituto de Engenharia Biomédica, Rua Alfredo Allen, 208, Porto 4200-135, Portugal.
| | - Marlus Chorilli
- São Paulo State University (UNESP), School of Pharmaceutical Sciences, Department of Drugs and Medicines, Araraquara, SP, Brazil.
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Shokri S, Shariatifar N, Molaee-Aghaee E, Khaniki GJ, Sadighara P, Faramarzi MA, Mohammadi M, Rezagholizade-Shirvan A. Synthesis and characterization of a novel magnetic chitosan-nickel ferrite nanocomposite for antibacterial and antioxidant properties. Sci Rep 2023; 13:15777. [PMID: 37737259 PMCID: PMC10516962 DOI: 10.1038/s41598-023-42974-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 09/17/2023] [Indexed: 09/23/2023] Open
Abstract
A novel nanomagnet modified with nickel ferrite nanoparticles (NPs) coated with hybrid chitosan (Cs-NiFe2O4) was synthesized using the co-precipitation method. The resulting nanomagnets were characterized using various techniques. The size of the nanomagnetic particles was estimated to be about 40 nm based on the transmission electron microscopy (TEM) image and X-ray diffraction analysis (XRD) pattern (using the Debye-Scherrer equation). Scanning electron microscopy (SEM) images indicated that the surface of Cs-NiFe2O4 NPs is flatter and smoother than the uncoated NiFe2O4 NPs. According to value stream mapping (VSM) analysis, the magnetization value of Cs-NiFe2O4 NPs (17.34 emu/g) was significantly lower than NiFe2O4 NPs (40.67 emu/g). The Cs-NiFe2O4 NPs indicated higher antibacterial properties than NiFe2O4 NPs and Cs. The minimum inhibitory concentrations of Cs-NiFe2O4 NPs against S. aureus and E. coli were 128 and 256 mg/mL, respectively. Antioxidant activity (evaluated by 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging test) for NiFe2O4 NPs and Cs-NiFe2O4 NPs at the concentration of 100 µg/mL were 35% and 42%, respectively. Consequently, the synthesized Cs-NiFe2O4 NPs can be proposed as a viable material for biomedical applications.
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Affiliation(s)
- Samira Shokri
- Department of Environmental Health, Food Safety Division, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Nabi Shariatifar
- Department of Environmental Health, Food Safety Division, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
| | - Ebrahim Molaee-Aghaee
- Department of Environmental Health, Food Safety Division, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
| | - Gholamreza Jahed Khaniki
- Department of Environmental Health, Food Safety Division, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Parisa Sadighara
- Department of Environmental Health, Food Safety Division, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ali Faramarzi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mansoureh Mohammadi
- Department of Food Science and Technology, Faculty of Nutrition Science and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Zhao WB, Liu KK, Wang Y, Li FK, Guo R, Song SY, Shan CX. Antibacterial Carbon Dots: Mechanisms, Design, and Applications. Adv Healthc Mater 2023; 12:e2300324. [PMID: 37178318 DOI: 10.1002/adhm.202300324] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/15/2023] [Indexed: 05/15/2023]
Abstract
The increase in antibiotic resistance promotes the situation of developing new antibiotics at the forefront, while the development of non-antibiotic pharmaceuticals is equally significant. In the post-antibiotic era, nanomaterials with high antibacterial efficiency and no drug resistance make them attractive candidates for antibacterial materials. Carbon dots (CDs), as a kind of carbon-based zero-dimensional nanomaterial, are attracting much attention for their multifunctional properties. The abundant surface states, tunable photoexcited states, and excellent photo-electron transfer properties make sterilization of CDs feasible and are gradually emerging in the antibacterial field. This review provides comprehensive insights into the recent development of CDs in the antibacterial field. The topics include mechanisms, design, and optimization processes, and their potential practical applications are also highlighted, such as treatment of bacterial infections, against bacterial biofilms, antibacterial surfaces, food preservation, and bacteria imaging and detection. Meanwhile, the challenges and outlook of CDs in the antibacterial field are discussed and proposed.
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Affiliation(s)
- Wen-Bo Zhao
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
| | - Kai-Kai Liu
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
| | - Yong Wang
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
| | - Fu-Kui Li
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
| | - Rui Guo
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
| | - Shi-Yu Song
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
| | - Chong-Xin Shan
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450052, China
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Jia M, Yi B, Chen X, Xu Y, Xu X, Wu Z, Ji J, Tang J, Yu D, Zheng Y, Zhou Q, Zhao Y. Carbon dots induce pathological damage to the intestine via causing intestinal flora dysbiosis and intestinal inflammation. J Nanobiotechnology 2023; 21:167. [PMID: 37231475 PMCID: PMC10210306 DOI: 10.1186/s12951-023-01931-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 05/16/2023] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND Carbon dots (CDs), as excellent antibacterial nanomaterials, have gained great attention in treating infection-induced diseases such as periodontitis and stomatitis. Given the eventual exposure of CDs to the intestine, elucidating the effect of CDs on intestinal health is required for the safety evaluation of CDs. RESULTS Herein, CDs extracted from ε-poly-L-lysine (PL) were chosen to explore the modulation effect of CDs on probiotic behavior in vitro and intestinal remodeling in vivo. Results verify that PL-CDs negatively regulate Lactobacillus rhamnosus (L. rhamnosus) growth via increasing reactive oxygen species (ROS) production and reducing the antioxidant activity, which subsequently destroys membrane permeability and integrity. PL-CDs are also inclined to inhibit cell viability and accelerate cell apoptosis. In vivo, the gavage of PL-CDs is verified to induce inflammatory infiltration and barrier damage in mice. Moreover, PL-CDs are found to increase the Firmicutes to Bacteroidota (F/B) ratio and the relative abundance of Lachnospiraceae while decreasing that of Muribaculaceae. CONCLUSION Overall, these evidences indicate that PL-CDs may inevitably result in intestinal flora dysbiosis via inhibiting probiotic growth and simultaneously activating intestinal inflammation, thus causing pathological damage to the intestine, which provides an effective and insightful reference for the potential risk of CDs from the perspective of intestinal remodeling.
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Affiliation(s)
- Mengmeng Jia
- School of Public Health, Qingdao University, Qingdao, 266071 China
| | - Bingcheng Yi
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, 266071 China
| | - Xian Chen
- School of Public Health, Qingdao University, Qingdao, 266071 China
| | - Yongzhi Xu
- School of Stomatology, Qingdao University, Qingdao, 266003 China
| | - Xinkai Xu
- School of Stomatology, Qingdao University, Qingdao, 266003 China
| | - Zhaoxu Wu
- School of Public Health, Qingdao University, Qingdao, 266071 China
| | - Jing Ji
- School of Public Health, Qingdao University, Qingdao, 266071 China
| | - Jinglong Tang
- School of Public Health, Qingdao University, Qingdao, 266071 China
| | - Dianke Yu
- School of Public Health, Qingdao University, Qingdao, 266071 China
| | - Yuxin Zheng
- School of Public Health, Qingdao University, Qingdao, 266071 China
| | - Qihui Zhou
- School of Rehabilitation Sciences and Engineering, University of Health and Rehabilitation Sciences, Qingdao, 266071 China
- School of Stomatology, Qingdao University, Qingdao, 266003 China
- Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, 325000 Zhejiang China
| | - Yanjie Zhao
- School of Public Health, Qingdao University, Qingdao, 266071 China
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Huang S, Song Y, Zhang JR, Chen X, Zhu JJ. Antibacterial Carbon Dots-Based Composites. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2207385. [PMID: 36799145 DOI: 10.1002/smll.202207385] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/20/2023] [Indexed: 06/18/2023]
Abstract
The emergence and global spread of bacterial resistance to conventionally used antibiotics have highlighted the urgent need for new antimicrobial agents that might replace antibiotics. Currently, nanomaterials hold considerable promise as antimicrobial agents in anti-inflammatory therapy. Due to their distinctive functional physicochemical characteristics and exceptional biocompatibility, carbon dots (CDs)-based composites have attracted a lot of attention in the context of these antimicrobial nanomaterials. Here, a thorough assessment of current developments in the field of antimicrobial CDs-based composites is provided, starting with a brief explanation of the general synthesis procedures, categorization, and physicochemical characteristics of CDs-based composites. The many processes driving the antibacterial action of these composites are then thoroughly described, including physical destruction, oxidative stress, and the incorporation of antimicrobial agents. Finally, the obstacles that CDs-based composites now suffer in combating infectious diseases are outlined and investigated, along with the potential applications of antimicrobial CDs-based composites.
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Affiliation(s)
- Shan Huang
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
| | - Yuexin Song
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Jian-Rong Zhang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Xiaojun Chen
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
| | - Jun-Jie Zhu
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
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Arif M, Ahmad R, Sharaf M, Muhammad J, Abdalla M, Eltayb WA, Liu CG. Antibacterial and antibiofilm activity of mannose-modified chitosan/PMLA nanoparticles against multidrug-resistant Helicobacter pylori. Int J Biol Macromol 2022; 223:418-432. [PMID: 36356866 DOI: 10.1016/j.ijbiomac.2022.10.265] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 10/26/2022] [Accepted: 10/30/2022] [Indexed: 11/09/2022]
Abstract
Because of the apparent stasis in antibiotic discoveries and the growth of multidrug resistance, Helicobacter pylori-associated gastric infections are difficult to eradicate. In the search for alternative therapy, the reductive amination of chitosan with mannose, followed by ionic gelation, produced mannose functionalized chitosan nanoparticles. Then, molecular docking and molecular dynamics (MD) simulations were conducted with H. pylori lectin (HPLectin) as a target protein involved in bacterium adherence to host cells, biofilm formation, and cytotoxicity. Changes in zeta potential and FTIR spectroscopy revealed that chitosan was functionalized with mannose. Time-kill, polystyrene adherence, and antibiofilm studies were utilized to assess nanoparticles as an alternative antibacterial treatment against a resistant gastric pathogen. Man-CS-Nps were discovered to have effective anti-adherence and biofilm disruption characteristics in suppressing the development of resistant H. pylori. In addition, bioimaging studies with CLSM, TEM, and SEM illustrated that Man-CS-Nps interacted with bacterial cells and induced membrane disruption by creating holes in the outer membranes of the bacterial cells, resulting in the leakage of amino acids. Importantly, molecular docking and 20 ns MD simulations revealed that Man-CS-Nps inhibited the target protein through slow-binding inhibition and hydrogen bond interactions with active site residues. As a consequence of the findings of this study, the Man-CS-Nps is an excellent candidate for developing alternative therapies for the increasing incidences of resistant gastric infections.
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Affiliation(s)
- Muhammad Arif
- College of Marine Life Science, Ocean University of China, No.5 Yushan Road, Qingdao 266003, PR China
| | - Rafiq Ahmad
- Department of Microbiology, The University of Haripur, Haripur 22610, Pakistan
| | - Mohamed Sharaf
- Department of Biochemistry, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo 11751, Egypt
| | - Javed Muhammad
- Department of Microbiology, The University of Haripur, Haripur 22610, Pakistan
| | - Mohnad Abdalla
- Key Laboratory of Chemical Biology (Ministry of Education), Department of Pharmaceutics, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, 44 Cultural West Road, Shandong Province, 250012, PR China.
| | - Wafa Ali Eltayb
- Biotechnology Department, Faculty of Science and Technology, Shendi University, Shendi, Nher Anile, Sudan
| | - Chen-Guang Liu
- College of Marine Life Science, Ocean University of China, No.5 Yushan Road, Qingdao 266003, PR China.
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Alshallash KS, Sharaf M, Abdel-Aziz HF, Arif M, Hamdy AE, Khalifa SM, Hassan MF, Abou ghazala MM, Bondok A, Ibrahim MTS, Alharbi K, Elkelish A. Postharvest physiology and biochemistry of Valencia orange after coatings with chitosan nanoparticles as edible for green mold protection under room storage conditions. FRONTIERS IN PLANT SCIENCE 2022; 13:1034535. [PMID: 36523617 PMCID: PMC9745901 DOI: 10.3389/fpls.2022.1034535] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 10/24/2022] [Indexed: 06/17/2023]
Abstract
Because of their unique features, nanomaterials have been proposed and have gained acceptance in postharvest applications in fruit. Increasing the storage life and improving the quality of Valencia oranges was investigated using nano-chitosan. A chitosan nanoparticle was prepared by using high-energy ball milling. Chitosan nanoparticles were characterized by Dynamic light scattering, FTIR spectroscopy and Surface morphology by transmission electron microscopy. Fully mature Valencia oranges were harvested and then coated with one of these concentrations (0.2, 0.4, and 0.8% nano-chitosan) and control. The fruits were stored under room storage conditions for 75 days. The quality parameters (fruit weight losses, fruit decay percentage, fruit firmness, total acidity, total soluble solids percentage and T.S.S./acid ratio, ascorbic acid content) were taken in biweekly intervals after 0, 15, 30, 45, 60, and 75 days. Beside the in vitro testing of antifungal activity of chitosan nanoparticles. According to the findings of the two succeeding seasons, the nano-chitosan 0.8% treatment showed the best effects and had the lowest rate of fruit weight loss, fruit deterioration, and T.S.S./acid ratio in comparison to the other treatments in both seasons. Furthermore, the 0.8% nano-chitosan reveled the highest levels of fruit hardness and fruit pulp firmness. Fruit weight loss, fruit deterioration, TSS, and TSS/acid ratio, as well as other metrics, were steadily elevated prior to the storage time. The best results were obtained when Valencia oranges fruits were treated with 0.8% nano-chitosan for 75 days at room temperature.
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Affiliation(s)
- Khalid S. Alshallash
- College of Science and Humanities - Huraymila, Imam Mohammed Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia
| | - Mohamed Sharaf
- Department of Biochemistry, Faculty of Agriculture, AL-Azhar University, Nasr City, Cairo, Egypt
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Hosny F. Abdel-Aziz
- Department of Horticulture, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
| | - Muhammad Arif
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Ashraf E. Hamdy
- Department of Horticulture, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
| | - Sobhy M. Khalifa
- Department of Horticulture, Faculty of Agriculture, Al-Azhar University, Cairo, Egypt
| | - Mohamed F. Hassan
- Department of Agriculture Botany, Faculty of Agriculture, Al‐Azhar University, Nasr City, Cairo, Egypt
| | - Mostafa M. Abou ghazala
- Department of Agriculture Botany, Faculty of Agriculture, Al‐Azhar University, Nasr City, Cairo, Egypt
| | - Ahmed Bondok
- Department of Plant Pathology, Faculty of Agriculture, Ain Shams University, Cairo, Egypt
| | - Mariam T. S. Ibrahim
- Department of Biochemistry, Faculty of Agriculture, Ain Shams University, Cairo, Egypt
| | - Khadiga Alharbi
- Department of Biology, College of science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Amr Elkelish
- Botany Department, Faculty of Science, Suez Canal University Ismailia, Ismailia, Egypt
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10
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Mapping Archaeal Diversity in Soda Lakes by Coupling 16S rRNA PCR-DGGE Analysis with Remote Sensing and GIS Technology. FERMENTATION 2022. [DOI: 10.3390/fermentation8080365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The haloarchaeal diversity of four hypersaline alkaline lakes from the Wadi El-Natrun depression (Northern Egypt) was investigated using culture-independent polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) of 16S rRNA gene phylotypes, which was combined with remote sensing and geographic information system (GIS) data to highlight the distribution pattern of the microbial diversity in water and sediment samples. The majority of archaeal sequences identified in all four lakes belonged to the phyla Euryarchaeota and Crenarchaeota. Sediment samples from Beida Lake and water samples from El-Hamra Lake showed the highest levels of archaeal diversity. Sequence similarities ≥ 95% were found between six of the acquired clones and uncultured Halorhabdus, Euryarchaeota, and archaeon clones. In addition, two clones shared a high level of sequence similarity (97%) with unclassified archaea, while other nine clones exhibited 96% to 99% sequence similarity with uncultured archaeon clones, and only one clone showed 97% identity with an uncultured Crenarchaeota. Likewise, 7 DGGE bands presented a sequence similarity of 90 to 98% to Halogranum sp., Halalkalicoccus tibetensis, Halalkalicoccus jeotgali, uncultured Halorubrum, Halobacteriaceae sp., or uncultured haloarchaeon. In conclusion, while the variety of alkaliphilic haloarchaea in the examined soda lakes was restricted, the possibility of uncovering novel species for biotechnological applications from these extreme habitats remains promising.
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Scope and Limitations of Current Antibiotic Therapies against Helicobacter pylori: Reviewing Amoxicillin Gastroretentive Formulations. Pharmaceutics 2022; 14:pharmaceutics14071340. [PMID: 35890236 PMCID: PMC9320814 DOI: 10.3390/pharmaceutics14071340] [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: 05/26/2022] [Revised: 06/18/2022] [Accepted: 06/22/2022] [Indexed: 12/04/2022] Open
Abstract
Even though general improvement of quality of life has happened around the globe, statistics show that gastric cancer is still a very serious medical concern in some regions of the world. A big portion of malignant neoplasms that develop inside the stomach are linked to an infection of Helicobacter pylori; in fact, this pathogen has already been categorized as a group 1 carcinogen by the World Health Organization (WHO). Still, the efficacy of current anti-H. pylori therapeutic approaches is insufficient and follows a worrying decreasing trend, mainly due to an exponential increase in resistance to key antibiotics. This work analyzes the clinical and biological characteristics of this pathogen, especially its link to gastric cancer, and provides a comprehensive review of current formulation trends for H. pylori eradication. Research effort has focused both on the discovery of new combinations of chemicals that function as optimized antibiotic regimens, and on the preparation of gastroretentive drug delivery systems (GRDDSs) to improve overall pharmacokinetics. Regarding the last topic, this review aims to summarize the latest trend in amoxicillin-loaded GRDDS, since this is the antibiotic that has shown the least bacterial resistance worldwide. It is expected that the current work could provide some insight into the importance of innovative options to combat this microorganism. Therefore, this review can inspire new research strategies in the development of efficient formulations for the treatment of this infection and the consequent prevention of gastric cancer.
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12
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Huang X, Xu L, Qian H, Wang X, Tao Z. Polymalic acid for translational nanomedicine. J Nanobiotechnology 2022; 20:295. [PMID: 35729582 PMCID: PMC9210645 DOI: 10.1186/s12951-022-01497-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 06/07/2022] [Indexed: 11/10/2022] Open
Abstract
With rich carboxyl groups in the side chain, biodegradable polymalic acid (PMLA) is an ideal delivery platform for multifunctional purposes, including imaging diagnosis and targeting therapy. This polymeric material can be obtained via chemical synthesis, or biological production where L-malic acids are polymerized in the presence of PMLA synthetase inside a variety of microorganisms. Fermentative methods have been employed to produce PMLAs from biological sources, and analytical assessments have been established to characterize this natural biopolymer. Further functionalized, PMLA serves as a versatile carrier of pharmaceutically active molecules at nano scale. In this review, we first delineate biosynthesis of PMLA in different microorganisms and compare with its chemical synthesis. We then introduce the biodegradation mechanism PMLA, its upscaled bioproduction together with characterization. After discussing advantages and disadvantages of PMLA as a suitable delivery carrier, and strategies used to functionalize PMLA for disease diagnosis and therapy, we finally summarize the current challenges in the biomedical applications of PMLA and envisage the future role of PMLA in clinical nanomedicine. The biosynthesis of polymalic acid (PMLA) and its biotechnical high-grade production from microorganisms compared with the chemical synthesis of PMLA The physicochemical and biological characteristics of PMLA and its derivatives How PMLA’s general chemical characteristics can be used to generate various macromolecular compounds for pharmaceutical delivery The concepts of biological and clinical targeting exemplified by PMLA-based drugs and imaging agents and their biodistribution and biodegradability An evaluation of the mechanisms that generate preclinical antitumor efficacy and the translational potential for clinical imaging
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Affiliation(s)
- Xing Huang
- Center for Evidence-Based and Translational Medicine, Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
| | - Liusheng Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Hui Qian
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China.,Zhenjiang Key Laboratory of High Technology Research On Exosomes Foundation and Transformation Application, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Xinghuan Wang
- Center for Evidence-Based and Translational Medicine, Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China.
| | - Zhimin Tao
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China. .,Zhenjiang Key Laboratory of High Technology Research On Exosomes Foundation and Transformation Application, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China.
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13
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Sharaf M, Arif M, Hamouda HI, Khan S, Abdalla M, Shabana S, Rozan HE, Khan TU, Chi Z, Liu C. Preparation, urease inhibition mechanisms, and anti- Helicobacter pylori activities of hesperetin-7-rhamnoglucoside. CURRENT RESEARCH IN MICROBIAL SCIENCES 2021; 3:100103. [PMID: 35024644 PMCID: PMC8732090 DOI: 10.1016/j.crmicr.2021.100103] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
This work investigated the effects of the bioflavonoid hesperetin-7-rhamnoglucoside isolated from Citrus uranium fruit peel on Helicobacter pylori (H. pylori). Separation and purity, crystalline state, and urease inhibition assays were carried out. Then, molecular docking and molecular dynamics (MD) simulations were conducted with urease as the target protein. Hesp was isolated from citrus peel with a purity of 95.14 µg mg-1 of dry raw material. X-ray diffraction analysis, hydrogen-1 nuclear magnetic resonance, Fourier transform infrared spectroscopy, and differential scanning calorimetry revealed that pure Hesp had the same crystallinity rating as the Hesp standard. The kinetic inhibition study demonstrated that Hesp inhibited H. pylori urease in a competitive and concentration-dependent manner with jack bean urease. In addition, bioimaging studies with laser scanning confocal microscopy and scanning electron microscopy illustrated that Hesp interacted with bacterial cells and induced membrane disruption by creating holes in the outer membranes of the bacterial cells, resulting in the leakage of amino acids. Importantly, molecular docking and 20 ns MD simulations revealed that Hesp inhibited the target protein through slow-binding inhibition and hydrogen bond interactions with active site residues, namely, Gly11 (O⋯H distance = 2.2 Å), Gly13 (O⋯H distance = 2.4 Å), Ser12 (O⋯H distance = 3.3 Å), Lys14 (O⋯H distance = 3.3 Å), and Arg179 (O⋯H distance = 2.7 Å). This work presents novel anti- H. pylori agents from natural sources.
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Affiliation(s)
- Mohamed Sharaf
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, PR China
- Department of Biochemistry, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, 11751, Egypt
| | - Muhammad Arif
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, PR China
| | - Hamed I. Hamouda
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, China
- Processes Design and Development Department, Egyptian Petroleum Research Institute, Nasr City, 11727, Cairo, Egypt
- University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Sohaib Khan
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, PR China
| | - Mohnad Abdalla
- Key Laboratory of Chemical Biology (Ministry of Education), Department of Pharmaceutics, School of Pharmaceutical Sciences, College of Medicine, Shandong University, 44 Cultural West Road, Shandong Province, 250012, PR China
| | - Samah Shabana
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, PR China
| | - Hussein. E. Rozan
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, PR China
- Department of Biochemistry, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, 11751, Egypt
| | - Tehsin Ullah Khan
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, PR China
| | - Zhe Chi
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, PR China
| | - Chenguang Liu
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, PR China
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Khan S, Sharaf M, Ahmed I, Khan TU, Shabana S, Arif M, Kazmi SSUH, Liu C. Potential utility of nano-based treatment approaches to address the risk of Helicobacter pylori. Expert Rev Anti Infect Ther 2021; 20:407-424. [PMID: 34658307 DOI: 10.1080/14787210.2022.1990041] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Helicobacter pylori (H. pylori) has occupied a significant place among infectious pathogens and it has been documented as a leading challenge due to its higher resistance to the commonly used drugs, higher adaptability, and lower targeting specificity of the available drugs. AREAS COVERED New treatment strategies are urgently needed in order to improve the current advancement in modern medicine. Nanocarriers have gained an advantage of drug encapsulation and high retention time in the stomach with a prolonged drug release rate at the targeted site. This article aims to highlight the recent advances in nanotechnology with special emphasis on metallic, polymeric, lipid, membrane coated, and target-specific nanoparticles (NPs), as well as, natural products for treating H. pylori infection. We discussed a comprehensive approach to understand H. pylori infection and elicits to rethink about the increasing threat posed by H. pylori and its treatment strategies. EXPERT OPINION To address these issues, nanotechnology has got huge potential to combat H. pylori infection and has made great progress in the field of biomedicine. Moreover, combinatory studies of natural products and probiotics in conjugation with NPs have proven efficiency against H. pylori infection, with an advantage of lower cytotoxicity, minimal side effects, and stronger antibacterial potential.[Figure: see text].
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Affiliation(s)
- Sohaib Khan
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Mohamed Sharaf
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, China.,Department of Biochemistry, Faculty of Agriculture, AL-Azhar University, Nasr City, Egypt
| | | | | | - Samah Shabana
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Muhammad Arif
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | | | - Chenguang Liu
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, China
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