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Liu Q, Shang Y, Shen L, Yu X, Cao Y, Zeng L, Zhang H, Rao Z, Li Y, Tao Z, Liu Z, Huang X. Outer membrane vesicles from genetically engineered Salmonella enterica serovar Typhimurium presenting Helicobacter pylori antigens UreB and CagA induce protection against Helicobacter pylori infection in mice. Virulence 2024; 15:2367783. [PMID: 38937901 DOI: 10.1080/21505594.2024.2367783] [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: 04/30/2024] [Accepted: 06/09/2024] [Indexed: 06/29/2024] Open
Abstract
Helicobacter pylori causes globally prevalent infections that are highly related to chronic gastritis and even development of gastric carcinomas. With the increase of antibiotic resistance, scientists have begun to search for better vaccine design strategies to eradicate H. pylori colonization. However, while current strategies prefer to formulate vaccines with a single H. pylori antigen, their potential has not yet been fully realized. Outer membrane vesicles (OMVs) are a potential platform since they could deliver multiple antigens. In this study, we engineered three crucial H. pylori antigen proteins (UreB, CagA, and VacA) onto the surface of OMVs derived from Salmonella enterica serovar Typhimurium (S. Typhimurium) mutant strains using the hemoglobin protease (Hbp) autotransporter system. In various knockout strategies, we found that OMVs isolated from the ΔrfbP ΔfliC ΔfljB ΔompA mutants could cause distinct increases in immunoglobulin G (IgG) and A (IgA) levels and effectively trigger T helper 1- and 17-biased cellular immune responses, which perform a vital role in protecting against H. pylori. Next, OMVs derived from ΔrfbP ΔfliC ΔfljB ΔompA mutants were used as a vector to deliver different combinations of H. pylori antigens. The antibody and cytokine levels and challenge experiments in mice model indicated that co-delivering UreB and CagA could protect against H. pylori and antigen-specific T cell responses. In summary, OMVs derived from the S. Typhimurium ΔrfbP ΔfliC ΔfljB ΔompA mutant strain as the vector while importing H. pylori UreB and CagA as antigenic proteins using the Hbp autotransporter system would greatly benefit controlling H. pylori infection.
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Affiliation(s)
- Qiong Liu
- The First Affiliated Hospital, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University
| | - Yinpan Shang
- The First Affiliated Hospital, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University
| | - Lu Shen
- The First Affiliated Hospital, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University
| | - Xiaomin Yu
- The First Affiliated Hospital, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University
| | - Yanli Cao
- The First Affiliated Hospital, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University
| | - Lingbing Zeng
- The First Affiliated Hospital, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University
| | - Hanchi Zhang
- The First Affiliated Hospital, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University
- The Second Clinical Medical College, Nanchang University, Nanchang, China
| | - Zirong Rao
- The First Affiliated Hospital, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University
- HuanKui Academy, Nanchang University, Nanchang, China
| | - Yi Li
- The First Affiliated Hospital, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University
- The First Clinical Medical College, Nanchang University, Nanchang, China
| | - Ziwei Tao
- The First Affiliated Hospital, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University
| | - Zhili Liu
- The First Affiliated Hospital, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University
- HuanKui Academy, Nanchang University, Nanchang, China
| | - Xiaotian Huang
- The First Affiliated Hospital, School of Basic Medical Sciences, Jiangxi Medical College, Nanchang University
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2
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El-Sherbiny GM, Kalaba MH, Foda AM, M E S, Youssef ASED, A Elsehemy I, Farghal EE, El-Fakharany EM. Nanoemulsion of cinnamon oil to combat colistin-resistant Klebsiella pneumoniae and cancer cells. Microb Pathog 2024; 192:106705. [PMID: 38761892 DOI: 10.1016/j.micpath.2024.106705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 04/27/2024] [Accepted: 05/16/2024] [Indexed: 05/20/2024]
Abstract
This study aimed to investigate the potential of cinnamon oil nanoemulsion (CONE) as an antibacterial agent against clinical strains of colistin-resistant Klebsiella pneumoniae and its anticancer activity. The prepared and characterized CONE was found to have a spherical shape with an average size of 70.6 ± 28.3 nm under TEM and a PDI value of 0.076 and zeta potential value of 6.9 mV using DLS analysis. The antibacterial activity of CONE against Klebsiella pneumoniae strains was investigated, and it was found to have higher inhibitory activity (18.3 ± 1.2-30.3 ± 0.8 mm) against the tested bacteria compared to bulk cinnamon oil (14.6 ± 0.88-20.6 ± 1.2) with MIC values ranging from 0.077 to 0.31 % v/v which equivalent to 0.2-0.82 ng/ml of CONE. CONE inhibited the growth of bacteria in a dose and time-dependent manner based on the time-kill assay in which Klebsiella pneumoniae B-9 was used as a model among the bacterial strains under investigation. The study also investigated the expression of the mcr-1 gene in the Klebsiella pneumoniae strains and found that all strains were positive for the gene expression and subsequently its presence. The level of mcr-1 gene expression among the B-2, B-4, B-9, and B-11 control strains and that treated with colistin was similar, but it was different in both B-5 and B-2. However, all strains exhibited a significant downregulation in gene expression (ranging from 3.97 to 8.7-fold) after their treatment with CONE. Additionally, the CONE-treated bacterial cells appeared with a great deformation compared with control cells under TEM. Finally, CONE exhibited selective toxicity against different cancer cell lines depending on comparison with the normal cell lines.
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Affiliation(s)
- Gamal M El-Sherbiny
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo, 11884, Egypt.
| | - Mohamed H Kalaba
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo, 11884, Egypt
| | - Abdullah M Foda
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo, 11884, Egypt
| | - Shehata M E
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo, 11884, Egypt
| | - Amira Salah El-Din Youssef
- Virology and Immunology Unit, Cancer Biology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Islam A Elsehemy
- Chemistry of Natural and Microbial Products, National Research Centre, Giza, Egypt
| | - Eman E Farghal
- Clinical and Chemical Pathology Department, Faculty of Medicine, Tanta University, Tanta, 31527, Egypt
| | - Esmail M El-Fakharany
- Protein Research Department, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Application, Egypt; Pharmaceutical and Fermentation Industries Development Center (PFIDC), City of Scientific Research and Technological Applications (STTA-City), New Borg Al Arab, Alexandria, Egypt
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3
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Rzepka Z, Rok J, Zdybel M, Pilawa B, Beberok A, Wrześniok D. Streptomycin generates oxidative stress in melanin-producing cells: In vitro study with EPR spectroscopy evidence. Toxicol In Vitro 2024; 98:105844. [PMID: 38740103 DOI: 10.1016/j.tiv.2024.105844] [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: 12/01/2023] [Revised: 02/12/2024] [Accepted: 05/08/2024] [Indexed: 05/16/2024]
Abstract
Streptomycin (STR) is an aminoglycoside antibiotic with a broad-spectrum of activity and ototoxic potential. The mechanism of STR-induced inner ear damage has not been fully elucidated. It was previously found that STR binds to melanin, which may result in the accumulation of the drug in melanin-containing tissues. Melanin pigment is present in various parts of the inner ear, including the cochlea and vestibular organ. The present study aimed to assess if streptomycin generates oxidative stress and affects melanogenesis in normal human melanocytes. Moreover the variation of free radical concentration in STR-treated melanocytes was examined by electron paramagnetic resonance spectroscopy (EPR). We found that STR decreases cell metabolic activity and reduces melanin content. The observed changes in the activity of antioxidant enzymes activity in HEMn-DPs treated with streptomycin may suggest that the drug affects redox homeostasis in melanocytes. In this work EPR study expanded knowledge about free radicals in interactions of STR and melanin in melanocytes. The results may help elucidate the mechanisms of STR toxicity on pigment cells, including melanin-producing cells in the inner ear. This is important because understanding the mechanism of STR-induced ototoxicity would be helpful in developing new therapeutic strategies to protect patients' hearing.
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Affiliation(s)
- Zuzanna Rzepka
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, 4 Jagiellońska Str., 41-200 Sosnowiec, Poland
| | - Jakub Rok
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, 4 Jagiellońska Str., 41-200 Sosnowiec, Poland
| | - Magdalena Zdybel
- Department of Biophysics, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, 8 Jedności Str., 41-200 Sosnowiec, Poland
| | - Barbara Pilawa
- Department of Biophysics, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, 8 Jedności Str., 41-200 Sosnowiec, Poland
| | - Artur Beberok
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, 4 Jagiellońska Str., 41-200 Sosnowiec, Poland
| | - Dorota Wrześniok
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, 4 Jagiellońska Str., 41-200 Sosnowiec, Poland.
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Vásquez Bonilla JN, Barranco Florido E, Hamdan Partida A, Ponce Alquicira E, Loera O. Interaction of beauvericin in combination with antibiotics against methicillin-resistant Staphylococcus aureus and Salmonella typhimurium. Toxicon 2024; 243:107713. [PMID: 38615997 DOI: 10.1016/j.toxicon.2024.107713] [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: 11/22/2023] [Revised: 02/27/2024] [Accepted: 04/08/2024] [Indexed: 04/16/2024]
Abstract
Multidrug resistance in bacteria is a major challenge worldwide, increasing both mortality by infections and costs for the health systems. Therefore, it is of utmost importance to find new drugs against resistant bacteria. Beauvericin (BEA) is a mycotoxin produced by entomopathogenic and other fungi of the genus Fusarium. Our work determines the effect of BEA combined with antibiotics, which has not been previously explored. The combination analysis included different antibiotics against non-methicillin-resistant Staphylococcus aureus (NT-MRSA), methicillin-resistant Staphylococcus aureus (MRSA), and Salmonella typhimurium. BEA showed a synergy effect with oxacillin with a fractional inhibitory concentration index (FICI) = 0.373 and an additive effect in combination with lincomycin (FICI = 0.507) against MRSA. In contrast, it was an antagonist when combined with ciprofloxacin against S. typhimurium. We propose BEA as a molecule with the potential for the development of new therapies in combination with current antibiotics against multidrug-resistant bacteria.
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Affiliation(s)
| | - Esteban Barranco Florido
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana-Xochimilco, 04960, Mexico City, Mexico
| | - Aida Hamdan Partida
- Departamento de Atención a la Salud, Universidad Autónoma Metropolitana-Xochimilco, 04960, Mexico City, Mexico
| | - Edith Ponce Alquicira
- Departamento de Biotecnología, Universidad Autónoma Metropolitana-Iztapalapa, 09340, Mexico City, Mexico
| | - Octavio Loera
- Departamento de Biotecnología, Universidad Autónoma Metropolitana-Iztapalapa, 09340, Mexico City, Mexico.
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Menikheim CB, Mousavi S, Bereswill S, Heimesaat MM. Polyphenolic compounds in the combat of foodborne infections - An update on recent evidence. Eur J Microbiol Immunol (Bp) 2024; 14:116-125. [PMID: 38526560 PMCID: PMC11097791 DOI: 10.1556/1886.2024.00018] [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: 02/12/2024] [Accepted: 03/09/2024] [Indexed: 03/26/2024] Open
Abstract
In recent years, the incidence of food-borne bacterial enteric diseases has increased worldwide causing significant health care and socioeconomic burdens. According to the World Health Organization, there are an estimated 600 million cases of foodborne illnesses worldwide each year, resulting in 420,000 deaths. Despite intensive efforts to tackle this problem, foodborne pathogenic microorganisms continue to be spread further. Therefore, there is an urgent need to find novel anti-microbial non-toxic compounds for food preservation. One way to tackle this issue may be the usage of polyphenols, which have received increasing attention in the recent years given their pleotropic health-promoting properties. This prompted us to perform a literature search summarizing studies from the past 10 years regarding the potential anti-microbial and disease-alleviating effects of plant-derived phenolic compounds against foodborne bacterial pathogens. The included 16 studies provide evidence that polyphenols show pronounced anti-bacterial and anti-oxidant effects against both Gram-positive and Gram-negative bacterial species. In addition, synergistic anti-microbial effects in combination with synthetic antibiotics were observed. In conclusion, phenolic compounds may be useful as natural anti-microbial agents in the food, agricultural, and pharmaceutical industries in the combat of foodborne infections.
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Affiliation(s)
- Carolin B. Menikheim
- Institute of Microbiology, Infectious Diseases, and Immunology, Gastrointestinal Microbiology Research Group, Charité – University Medicine Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Soraya Mousavi
- Institute of Microbiology, Infectious Diseases, and Immunology, Gastrointestinal Microbiology Research Group, Charité – University Medicine Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Stefan Bereswill
- Institute of Microbiology, Infectious Diseases, and Immunology, Gastrointestinal Microbiology Research Group, Charité – University Medicine Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Markus M. Heimesaat
- Institute of Microbiology, Infectious Diseases, and Immunology, Gastrointestinal Microbiology Research Group, Charité – University Medicine Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
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Rippon MG, Daly K, Rogers AA, Westgate S. Safety and effectiveness of an antiseptic wound cleansing and irrigation solution containing polyhexamethylene biguanide. J Wound Care 2024; 33:324-334. [PMID: 38683774 DOI: 10.12968/jowc.2024.33.5.324] [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] [Indexed: 05/02/2024]
Abstract
OBJECTIVE There is currently a wide range of cleansing and irrigation solutions available for wounds, many of which contain antimicrobial agents. The aim of this study was to assess the safety of HydroClean Solution (HARTMANN, Germany), a polyhexamethylene biguanide (PHMB)-containing irrigation solution, in a standard cytotoxicity assay, and to assess its effect in a three-dimensional (3D) full-thickness model of human skin. METHOD A number of commercially available wound cleansing and irrigation solutions, including the PHMB-containing irrigation solution, were tested in a cytotoxicity assay using L929 mouse fibroblasts (ISO 10993-5:2009). The PHMB-containing irrigation solution was then assessed in an in vitro human keratinocyte-fibroblast 3D full-thickness wounded skin model to determine its effect on wound healing over six days. The effect of the PHMB-containing irrigation solution on tissue viability was measured using a lactate dehydrogenase (LDH) assay, and proinflammatory effects were measured using an interleukin-6 (IL-6) production assay. RESULTS The PHMB-containing irrigation solution was shown to be equivalent to other commercially available cleansing and irrigation solutions when tested in the L929 fibroblast cytotoxicity assay. When assessed in the in vitro 3D human full-thickness wound healing model, the PHMB-containing irrigation solution treatment resulted in no difference in levels of LDH or IL-6 when compared with levels produced in control Dulbecco's phosphate-buffered saline cultures. There was, however, a pronounced tissue thickening of the skin model in the periwound region. CONCLUSION The experimental data presented in this study support the conclusion that the PHMB-containing irrigation solution has a safety profile similar to other commercially available cleansing and irrigation solutions. Evidence also suggests that the PHMB-containing irrigation solution does not affect tissue viability or proinflammatory cytokine production, as evidenced by LDH levels or the production of IL-6 in a 3D human full-thickness wound healing model. The PHMB-containing irrigation solution stimulated new tissue growth in the periwound region of the skin model.
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Affiliation(s)
- Mark G Rippon
- Huddersfield University, Huddersfield, UK
- Daneriver Consultancy Ltd, Holmes Chapel, Cheshire, UK
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Edis Z, Bloukh SH. Thymol, a Monoterpenoid within Polymeric Iodophor Formulations and Their Antimicrobial Activities. Int J Mol Sci 2024; 25:4949. [PMID: 38732168 PMCID: PMC11084924 DOI: 10.3390/ijms25094949] [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: 03/31/2024] [Revised: 04/18/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024] Open
Abstract
Antimicrobial resistance (AMR) poses an emanating threat to humanity's future. The effectiveness of commonly used antibiotics against microbial infections is declining at an alarming rate. As a result, morbidity and mortality rates are soaring, particularly among immunocompromised populations. Exploring alternative solutions, such as medicinal plants and iodine, shows promise in combating resistant pathogens. Such antimicrobials could effectively inhibit microbial proliferation through synergistic combinations. In our study, we prepared a formulation consisting of Aloe barbadensis Miller (AV), Thymol, iodine (I2), and polyvinylpyrrolidone (PVP). Various analytical methods including SEM/EDS, UV-vis, Raman, FTIR, and XRD were carried out to verify the purity, composition, and morphology of AV-PVP-Thymol-I2. We evaluated the inhibitory effects of this formulation against 10 selected reference strains using impregnated sterile discs, surgical sutures, gauze bandages, surgical face masks, and KN95 masks. The antimicrobial properties of AV-PVP-Thymol-I2 were assessed through disc diffusion methods against 10 reference strains in comparison with two common antibiotics. The 25-month-old formulation exhibited slightly lower inhibitory zones, indicating changes in the sustained-iodine-release reservoir. Our findings confirm AV-PVP-Thymol-I2 as a potent antifungal and antibacterial agent against the reference strains, demonstrating particularly strong inhibitory action on surgical sutures, cotton bandages, and face masks. These results enable the potential use of the formulation AV-PVP-Thymol-I2 as a promising antimicrobial agent against wound infections and as a spray-on contact-killing agent.
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Affiliation(s)
- Zehra Edis
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Science, Ajman University, Ajman P.O. Box 346, United Arab Emirates
- Center of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman P.O. Box 346, United Arab Emirates;
| | - Samir Haj Bloukh
- Center of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman P.O. Box 346, United Arab Emirates;
- Department of Clinical Sciences, College of Pharmacy and Health Science, Ajman University, Ajman P.O. Box 346, United Arab Emirates
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Cresti L, Cappello G, Pini A. Antimicrobial Peptides towards Clinical Application-A Long History to Be Concluded. Int J Mol Sci 2024; 25:4870. [PMID: 38732089 PMCID: PMC11084544 DOI: 10.3390/ijms25094870] [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: 03/27/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
Antimicrobial peptides (AMPs) are molecules with an amphipathic structure that enables them to interact with bacterial membranes. This interaction can lead to membrane crossing and disruption with pore formation, culminating in cell death. They are produced naturally in various organisms, including humans, animals, plants and microorganisms. In higher animals, they are part of the innate immune system, where they counteract infection by bacteria, fungi, viruses and parasites. AMPs can also be designed de novo by bioinformatic approaches or selected from combinatorial libraries, and then produced by chemical or recombinant procedures. Since their discovery, AMPs have aroused interest as potential antibiotics, although few have reached the market due to stability limits or toxicity. Here, we describe the development phase and a number of clinical trials of antimicrobial peptides. We also provide an update on AMPs in the pharmaceutical industry and an overall view of their therapeutic market. Modifications to peptide structures to improve stability in vivo and bioavailability are also described.
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Affiliation(s)
- Laura Cresti
- Medical Biotechnology Department, University of Siena, Via A Moro 2, 53100 Siena, Italy; (G.C.); (A.P.)
| | - Giovanni Cappello
- Medical Biotechnology Department, University of Siena, Via A Moro 2, 53100 Siena, Italy; (G.C.); (A.P.)
| | - Alessandro Pini
- Medical Biotechnology Department, University of Siena, Via A Moro 2, 53100 Siena, Italy; (G.C.); (A.P.)
- SetLance srl, Via Fiorentina 1, 53100 Siena, Italy
- Laboratory of Clinical Pathology, Santa Maria alle Scotte University Hospital, 53100 Siena, Italy
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Wang Y, Shi J, Wang M, Zhang L, Wang R, Zhang J, Qing H, Duan J, Zhang X, Pu G. pH-Responsive Co-Assembled Peptide Hydrogel to Inhibit Drug-Resistant Bacterial Infection and Promote Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2024; 16:18400-18410. [PMID: 38576193 DOI: 10.1021/acsami.3c18436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Drug-resistant bacterial infection and biofilm formation are the key inhibitors of wound healing, and new strategies are urgently needed to address these issues. In this study, we designed a pH-responsive co-assembled peptide hydrogel to inhibit Methicillin-resistant Staphylococcus aureus (MRSA) infection and promote wound healing. We synthesized a cationic short peptide (Nap-FFKKK) and a co-assembled hydrogel with curcumin at pH ∼ 7.8. The loaded curcumin was continuously released in a weak acid environment (pH ∼ 5.5). The lysine-rich cationic peptide inhibited biofilm formation in MRSA via electrostatic interaction with the negatively charged bacterial cell surface and, thus, provided a reinforcing antibacterial effect with curcumin. In vitro antibacterial experiments showed that the co-assembled system considerably reduced the minimum inhibitory concentration of curcumin against MRSA by 10-fold and promoted wound healing in a mouse model of MRSA-infected wounds. This study provides a simple and promising strategy to treat drug-resistant bacterial infections in wounds.
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Affiliation(s)
- Yu Wang
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang, Shaanxi 712100, P. R. China
| | - Jingru Shi
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang, Shaanxi 712100, P. R. China
| | - Mengyao Wang
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang, Shaanxi 712100, P. R. China
| | - Lingjiao Zhang
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang, Shaanxi 712100, P. R. China
| | - Rui Wang
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang, Shaanxi 712100, P. R. China
| | - Junjie Zhang
- Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, P. R. China
| | - Huiling Qing
- Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, P. R. China
| | - Jinyou Duan
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang, Shaanxi 712100, P. R. China
| | - Xiaoli Zhang
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, 22 Xinong Road, Yangling, Xianyang, Shaanxi 712100, P. R. China
| | - Guojuan Pu
- Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450003, P. R. China
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10
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Xing H, de Campos LJ, Pereira AJ, Fiora MM, Aguiar-Alves F, Tagliazucchi M, Conda-Sheridan M. Engineering a nanoantibiotic system displaying dual mechanism of action. Proc Natl Acad Sci U S A 2024; 121:e2321498121. [PMID: 38593077 PMCID: PMC11032466 DOI: 10.1073/pnas.2321498121] [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: 12/09/2023] [Accepted: 03/04/2024] [Indexed: 04/11/2024] Open
Abstract
In recent decades, peptide amphiphiles (PAs) have established themselves as promising self-assembling bioinspired materials in a wide range of medical fields. Herein, we report a dual-therapeutic system constituted by an antimicrobial PA and a cylindrical protease inhibitor (LJC) to achieve broad antimicrobial spectrum and to enhance therapeutic efficacy. We studied two strategies: PA-LJC nanostructures (Encapsulation) and PA nanostructures + free LJC (Combination). Computational modeling using a molecular theory for amphiphile self-assembly captures and explains the morphology of PA-LJC nanostructures and the location of encapsulated LJC in agreement with transmission electron microscopy and two-dimensional (2D) NMR observations. The morphology and release profile of PA-LJC assemblies are strongly correlated to the PA:LJC ratio: high LJC loading induces an initial burst release. We then evaluated the antimicrobial activity of our nanosystems toward gram-positive and gram-negative bacteria. We found that the Combination broadens the spectrum of LJC, reduces the therapeutic concentrations of both agents, and is not impacted by the inoculum effect. Further, the Encapsulation provides additional benefits including bypassing water solubility limitations of LJC and modulating the release of this molecule. The different properties of PA-LJC nanostructures results in different killing profiles, and reduced cytotoxicity and hemolytic activity. Meanwhile, details in membrane alterations caused by each strategy were revealed by various microscopy and fluorescent techniques. Last, in vivo studies in larvae treated by the Encapsulation strategy showed better antimicrobial efficacy than polymyxin B. Collectively, this study established a multifunctional platform using a versatile PA to act as an antibiotic, membrane-penetrating assistant, and slow-release delivery vehicle.
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Affiliation(s)
- Huihua Xing
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE68198
| | - Luana Janaína de Campos
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE68198
| | - Aramis Jose Pereira
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE68198
| | - Maria Mercedes Fiora
- Instituto Nacional de Tecnología Industrial, Micro y Nanotecnologías, San Martín, Buenos AiresB1650WAB, Argentina
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Inorgánica Analítica y Química Física, Pabellón 2, Ciudad Universitaria, Ciudad Autónoma de Buenos AiresC1428, Argentina
- Universidad de Buenos Aires-Consejo Nacional de Investigaciones Cientificas y Tecnicas, Facultad de Ciencias Exactas y Naturales, Instituto de Quimica de los Materiales, Ambiente y Energia, Pabellon 2, Ciudad Universitaria, Ciudad Autonoma de Buenos AiresC1428
| | - Fabio Aguiar-Alves
- Department of Pharmaceutical Sciences, Lloyd L. Gregory School of Pharmacy, Palm Beach Atlantic University, FL33401
| | - Mario Tagliazucchi
- Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Química Inorgánica Analítica y Química Física, Pabellón 2, Ciudad Universitaria, Ciudad Autónoma de Buenos AiresC1428, Argentina
- Universidad de Buenos Aires-Consejo Nacional de Investigaciones Cientificas y Tecnicas, Facultad de Ciencias Exactas y Naturales, Instituto de Quimica de los Materiales, Ambiente y Energia, Pabellon 2, Ciudad Universitaria, Ciudad Autonoma de Buenos AiresC1428
| | - Martin Conda-Sheridan
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE68198
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Drioiche A, Baammi S, Zibouh K, Al Kamaly O, Alnakhli AM, Remok F, Saidi S, Amaiach R, El Makhoukhi F, Elomri A, Zair T. A Study of the Synergistic Effects of Essential Oils from Origanum compactum and Origanum elongatum with Commercial Antibiotics against Highly Prioritized Multidrug-Resistant Bacteria for the World Health Organization. Metabolites 2024; 14:210. [PMID: 38668338 PMCID: PMC11051742 DOI: 10.3390/metabo14040210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 03/30/2024] [Accepted: 04/02/2024] [Indexed: 04/28/2024] Open
Abstract
The irrational use of antibiotics has favored the emergence of resistant bacteria, posing a serious threat to global health. To counteract antibiotic resistance, this research seeks to identify novel antimicrobials derived from essential oils that operate through several mechanisms. It aims to evaluate the quality and composition of essential oils from Origanum compactum and Origanum elongatum; test their antimicrobial activity against various strains; explore their synergies with commercial antibiotics; predict the efficacy, toxicity, and stability of compounds; and understand their molecular interactions through docking and dynamic simulations. The essential oils were extracted via hydrodistillation from the flowering tops of oregano in the Middle Atlas Mountains in Morocco. Gas chromatography combined with mass spectrometry (GC-MS) was used to examine their composition. Nine common antibiotics were chosen and tested alone or in combination with essential oils to discover synergistic effects against clinically important and resistant bacterial strains. A comprehensive in silico study was conducted, involving molecular docking and molecular dynamics simulations (MD). O. elongatum oil includes borneol (8.58%), p-cymene (42.56%), thymol (28.43%), and carvacrol (30.89%), whereas O. compactum oil is mostly composed of γ-terpinene (22.89%), p-cymene (15.84%), thymol (10.21%), and (E)-caryophyllene (3.63%). With O. compactum proving to be the most potent, these essential oils showed antibacterial action against both Gram-positive and Gram-negative bacteria. Certain antibiotics, including ciprofloxacin, ceftriaxone, amoxicillin, and ampicillin, have been shown to elicit synergistic effects. To fight resistant bacteria, the essential oils of O. compactum and O. elongatum, particularly those high in thymol and (E)-caryophyllene, seem promising when combined with antibiotics. These synergistic effects could result from their ability to target the same bacterial proteins or facilitate access to target sites, as suggested by molecular docking simulations. Molecular dynamics simulations validated the stability of the examined protein-ligand complexes, emphasizing the propensity of substances like thymol and (E)-caryophyllene for particular target proteins, opening the door to potentially effective new therapeutic approaches against pathogens resistant to multiple drugs.
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Affiliation(s)
- Aziz Drioiche
- Research Team of Chemistry of Bioactive Molecules and the Environment, Laboratory of Innovative Materials and Biotechnology of Natural Resources, Faculty of Sciences, Moulay Ismail University, B.P. 11201, Zitoune, Meknes 50070, Morocco; (K.Z.); (F.R.); (S.S.); (F.E.M.)
- Medical Microbiology Laboratory, Mohamed V. Hospital, Meknes 50000, Morocco
| | - Soukayna Baammi
- Bioinformatics Laboratory, College of Computing, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco;
| | - Khalid Zibouh
- Research Team of Chemistry of Bioactive Molecules and the Environment, Laboratory of Innovative Materials and Biotechnology of Natural Resources, Faculty of Sciences, Moulay Ismail University, B.P. 11201, Zitoune, Meknes 50070, Morocco; (K.Z.); (F.R.); (S.S.); (F.E.M.)
| | - Omkulthom Al Kamaly
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia; (O.A.K.); (A.M.A.)
| | - Anwar M. Alnakhli
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia; (O.A.K.); (A.M.A.)
| | - Firdaous Remok
- Research Team of Chemistry of Bioactive Molecules and the Environment, Laboratory of Innovative Materials and Biotechnology of Natural Resources, Faculty of Sciences, Moulay Ismail University, B.P. 11201, Zitoune, Meknes 50070, Morocco; (K.Z.); (F.R.); (S.S.); (F.E.M.)
| | - Soukaina Saidi
- Research Team of Chemistry of Bioactive Molecules and the Environment, Laboratory of Innovative Materials and Biotechnology of Natural Resources, Faculty of Sciences, Moulay Ismail University, B.P. 11201, Zitoune, Meknes 50070, Morocco; (K.Z.); (F.R.); (S.S.); (F.E.M.)
| | - Rachid Amaiach
- Laboratory of Materials, Processes, Catalysis and Environment, School of Technology, University Sidi Mohamed Ben Abdellah, Fez 30000, Morocco;
| | - Fadoua El Makhoukhi
- Research Team of Chemistry of Bioactive Molecules and the Environment, Laboratory of Innovative Materials and Biotechnology of Natural Resources, Faculty of Sciences, Moulay Ismail University, B.P. 11201, Zitoune, Meknes 50070, Morocco; (K.Z.); (F.R.); (S.S.); (F.E.M.)
| | - Abdelhakim Elomri
- UNIROUEN, INSA Rouen, CNRS, COBRA (UMR 6014), Normandie University, 76000 Rouen, France;
| | - Touriya Zair
- Research Team of Chemistry of Bioactive Molecules and the Environment, Laboratory of Innovative Materials and Biotechnology of Natural Resources, Faculty of Sciences, Moulay Ismail University, B.P. 11201, Zitoune, Meknes 50070, Morocco; (K.Z.); (F.R.); (S.S.); (F.E.M.)
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Răducu L, Moraru OE, Gheoca-Mutu DE, Peligrad T, Țigăran AE, Abu-Baker A, Ion DE, Ursuț BM, Jecan CR, Avino A. Confronting a New Challenge in Plastic Surgery: MDR Infections in Patients with Chronic Wounds. Life (Basel) 2024; 14:444. [PMID: 38672715 PMCID: PMC11050788 DOI: 10.3390/life14040444] [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: 02/02/2024] [Revised: 03/20/2024] [Accepted: 03/25/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND The presence of a wound can be anywhere from non-problematic to life-threatening on a severity spectrum, with bacterial infection and resistance playing a major role in the development of chronicity, delaying wound healing. Wound colonization with multiple organisms and the limited number of effective antibiotics place a heavy burden on the healthcare system, with patients going through multiple surgeries during a prolonged hospitalization time. By analyzing the resistance patterns of pluri-bacterial populations and the approach used in managing complex cases, we aim to improve the protocols applied in caring for chronic wounds in our practice and share our experiences and observations. METHODS We designed a retrospective study on 212 diabetic and non-diabetic patients, aiming to evaluate the course of chronic wound treatment in our practice. We focused on the impact that MDR bacteria and diabetes have on surgical outcomes and their role in the healing process. RESULTS Patients who received empiric antibiotic therapy before being admitted eventually presented with multiple MDR bacteria compared to those who did not receive antibiotics (p = 0.014). The presence of at least one MDR bacteria in the wound bed was associated with ulcers reaching bone (p = 0.02) and was positively correlated with the number of surgeries performed (p < 0.001). Diabetes played a significant role in surgery-related complications (p = 0.02) and hospitalization time (p < 0.001). CONCLUSIONS Proper management of chronic wounds requires a comprehensive, multidisciplinary approach and a thorough understanding of antibiotic usage. To address this need, we have developed and implemented a chronic wound treatment protocol in our clinic, with the goal of discharging patients once their ulcers have been treated and closed. A key summary of the protocol presented is to reduce the incidence of MDR bacteria and improve the patient's quality of life.
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Affiliation(s)
- Laura Răducu
- Discipline of Plastic Surgery, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (L.R.); (C.-R.J.); (A.A.)
- Department of Plastic and Reconstructive Surgery, “Prof. Dr. Agrippa Ionescu” Emergency Clinical Hospital, 011356 Bucharest, Romania; (D.-E.G.-M.); (A.-E.Ț.); (A.A.-B.); (D.-E.I.)
| | - Oriana Elena Moraru
- Discipline of Cardiovascular Surgery, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
- Department of Vascular Surgery, “Prof. Dr. Agrippa Ionescu” Emergency Clinical Hospital, 011356 Bucharest, Romania
| | - Daniela-Elena Gheoca-Mutu
- Department of Plastic and Reconstructive Surgery, “Prof. Dr. Agrippa Ionescu” Emergency Clinical Hospital, 011356 Bucharest, Romania; (D.-E.G.-M.); (A.-E.Ț.); (A.A.-B.); (D.-E.I.)
- Discipline of Anatomy, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania;
| | - Teodora Peligrad
- Department of Plastic and Reconstructive Surgery, “Prof. Dr. Agrippa Ionescu” Emergency Clinical Hospital, 011356 Bucharest, Romania; (D.-E.G.-M.); (A.-E.Ț.); (A.A.-B.); (D.-E.I.)
| | - Andrada-Elena Țigăran
- Department of Plastic and Reconstructive Surgery, “Prof. Dr. Agrippa Ionescu” Emergency Clinical Hospital, 011356 Bucharest, Romania; (D.-E.G.-M.); (A.-E.Ț.); (A.A.-B.); (D.-E.I.)
| | - Abdalah Abu-Baker
- Department of Plastic and Reconstructive Surgery, “Prof. Dr. Agrippa Ionescu” Emergency Clinical Hospital, 011356 Bucharest, Romania; (D.-E.G.-M.); (A.-E.Ț.); (A.A.-B.); (D.-E.I.)
- Doctoral School, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Daniela-Elena Ion
- Department of Plastic and Reconstructive Surgery, “Prof. Dr. Agrippa Ionescu” Emergency Clinical Hospital, 011356 Bucharest, Romania; (D.-E.G.-M.); (A.-E.Ț.); (A.A.-B.); (D.-E.I.)
| | - Bogdan Mihai Ursuț
- Discipline of Anatomy, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania;
- Department of General Surgery, “Prof. Dr. Agrippa Ionescu” Emergency Clinical Hospital, 011356 Bucharest, Romania
| | - Cristian-Radu Jecan
- Discipline of Plastic Surgery, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (L.R.); (C.-R.J.); (A.A.)
- Department of Plastic and Reconstructive Surgery, “Prof. Dr. Agrippa Ionescu” Emergency Clinical Hospital, 011356 Bucharest, Romania; (D.-E.G.-M.); (A.-E.Ț.); (A.A.-B.); (D.-E.I.)
| | - Adelaida Avino
- Discipline of Plastic Surgery, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania; (L.R.); (C.-R.J.); (A.A.)
- Department of Plastic and Reconstructive Surgery, “Prof. Dr. Agrippa Ionescu” Emergency Clinical Hospital, 011356 Bucharest, Romania; (D.-E.G.-M.); (A.-E.Ț.); (A.A.-B.); (D.-E.I.)
- Doctoral School, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania
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Van Goethem MW, Marasco R, Hong P, Daffonchio D. The antibiotic crisis: On the search for novel antibiotics and resistance mechanisms. Microb Biotechnol 2024; 17:e14430. [PMID: 38465465 PMCID: PMC10926060 DOI: 10.1111/1751-7915.14430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/07/2024] [Accepted: 02/13/2024] [Indexed: 03/12/2024] Open
Abstract
In the relentless battle for human health, the proliferation of antibiotic-resistant bacteria has emerged as an impending catastrophe of unprecedented magnitude, potentially driving humanity towards the brink of an unparalleled healthcare crisis. The unyielding advance of antibiotic resistance looms as the foremost threat of the 21st century in clinical, agricultural and environmental arenas. Antibiotic resistance is projected to be the genesis of the next global pandemic, with grim estimations of tens of millions of lives lost annually by 2050. Amidst this impending calamity, our capacity to unearth novel antibiotics has languished, with the past four decades marred by a disheartening 'antibiotic discovery void'. With nearly 80% of our current antibiotics originating from natural or semi-synthetic sources, our responsibility is to cast our investigative nets into uncharted ecological niches teeming with microbial strife, the so-called 'microbial oases of interactions'. Within these oases of interactions, where microorganisms intensively compete for space and nutrients, a dynamic and ever-evolving microbial 'arms race' is constantly in place. Such a continuous cycle of adaptation and counter-adaptation is a fundamental aspect of microbial ecology and evolution, as well as the secrets to unique, undiscovered antibiotics, our last bastion against the relentless tide of resistance. In this context, it is imperative to invest in research to explore the competitive realms, like the plant rhizosphere, biological soil crusts, deep sea hydrothermal vents, marine snow and the most modern plastisphere, in which competitive interactions are at the base of the microorganisms' struggle for survival and dominance in their ecosystems: identify novel antibiotic by targeting microbial oases of interactions could represent a 'missing piece of the puzzle' in our fight against antibiotic resistance.
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Affiliation(s)
- Marc W. Van Goethem
- Biological and Environmental Sciences and Engineering Division (BESE)King Abdullah University of Science and Technology (KAUST)ThuwalSaudi Arabia
| | - Ramona Marasco
- Biological and Environmental Sciences and Engineering Division (BESE)King Abdullah University of Science and Technology (KAUST)ThuwalSaudi Arabia
| | - Pei‐Ying Hong
- Biological and Environmental Sciences and Engineering Division (BESE)King Abdullah University of Science and Technology (KAUST)ThuwalSaudi Arabia
- Water Desalination and Reuse CenterBiological and Environmental Science and Engineering, King Abdullah University of Science and Technology (KAUST)ThuwalSaudi Arabia
| | - Daniele Daffonchio
- Biological and Environmental Sciences and Engineering Division (BESE)King Abdullah University of Science and Technology (KAUST)ThuwalSaudi Arabia
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Bo L, Sun H, Li YD, Zhu J, Wurpel JND, Lin H, Chen ZS. Combating antimicrobial resistance: the silent war. Front Pharmacol 2024; 15:1347750. [PMID: 38420197 PMCID: PMC10899355 DOI: 10.3389/fphar.2024.1347750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 02/02/2024] [Indexed: 03/02/2024] Open
Abstract
Once hailed as miraculous solutions, antibiotics no longer hold that status. The excessive use of antibiotics across human healthcare, agriculture, and animal husbandry has given rise to a broad array of multidrug-resistant (MDR) pathogens, posing formidable treatment challenges. Antimicrobial resistance (AMR) has evolved into a pressing global health crisis, linked to elevated mortality rates in the modern medical era. Additionally, the absence of effective antibiotics introduces substantial risks to medical and surgical procedures. The dwindling interest of pharmaceutical industries in developing new antibiotics against MDR pathogens has aggravated the scarcity issue, resulting in an exceedingly limited pipeline of new antibiotics. Given these circumstances, the imperative to devise novel strategies to combat perilous MDR pathogens has become paramount. Contemporary research has unveiled several promising avenues for addressing this challenge. The article provides a comprehensive overview of these innovative therapeutic approaches, highlighting their mechanisms of action, benefits, and drawbacks.
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Affiliation(s)
- Letao Bo
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Queens, NY, United States
| | - Haidong Sun
- Shenzhen Hospital of Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Yi-Dong Li
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Queens, NY, United States
| | - Jonathan Zhu
- Carle Place Middle and High School, Carle Place, NY, United States
| | - John N. D. Wurpel
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Queens, NY, United States
| | - Hanli Lin
- Shenzhen Hospital of Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Zhe-Sheng Chen
- Institute for Biotechnology, St. John’s University, Queens, NY, United States
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15
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Efremova I, Maslennikov R, Zharkova M, Poluektova E, Benuni N, Kotusov A, Demina T, Ivleva A, Adzhieva F, Krylova T, Ivashkin V. Efficacy and Safety of a Probiotic Containing Saccharomyces boulardii CNCM I-745 in the Treatment of Small Intestinal Bacterial Overgrowth in Decompensated Cirrhosis: Randomized, Placebo-Controlled Study. J Clin Med 2024; 13:919. [PMID: 38337613 PMCID: PMC10856456 DOI: 10.3390/jcm13030919] [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: 01/02/2024] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
(1) Background: The aim was to evaluate the effectiveness of the probiotic containing Saccharomyces boulardii in the treatment of small intestinal bacterial overgrowth (SIBO) in patients with decompensated cirrhosis. (2) Methods: This was a blinded, randomized, placebo-controlled study. (3) Results: After 3 months of treatment, SIBO was absent in 80.0% of patients in the probiotic group and in 23.1% of patients in the placebo group (p = 0.002). The patients with eliminated SIBO had decreased frequency of ascites and hepatic encephalopathy, the increased platelets and albumin levels, the decreased blood levels of total bilirubin, biomarkers of bacterial translocation (lipopolysaccharide [LPS]) and systemic inflammation (C-reactive protein), and positive changes in markers of hyperdynamic circulation compared with the state at inclusion. There were no significant changes in the claudin 3 level (the intestinal barrier biomarker) in these patients. No significant changes were observed in the group of patients with persistent SIBO. The serum level of nitrate (endothelial dysfunction biomarker) was lower in patients with eradicated SIBO than in patients with persistent SIBO. One (5.3%) patient with eradicated SIBO and six (42.9%) patients with persistent SIBO died within the first year of follow-up (p = 0.007). (4) Conclusions: SIBO eradication was an independent predictor of a favorable prognosis during the first year of follow-up.
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Affiliation(s)
- Irina Efremova
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, Moscow 119992, Russia (M.Z.); (E.P.); (N.B.); (A.K.); (A.I.); (T.K.)
| | - Roman Maslennikov
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, Moscow 119992, Russia (M.Z.); (E.P.); (N.B.); (A.K.); (A.I.); (T.K.)
- The Interregional Public Organization “Scientific Community for the Promotion of the Clinical Study of the Human Microbiome”, Moscow 119435, Russia
| | - Maria Zharkova
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, Moscow 119992, Russia (M.Z.); (E.P.); (N.B.); (A.K.); (A.I.); (T.K.)
| | - Elena Poluektova
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, Moscow 119992, Russia (M.Z.); (E.P.); (N.B.); (A.K.); (A.I.); (T.K.)
- The Interregional Public Organization “Scientific Community for the Promotion of the Clinical Study of the Human Microbiome”, Moscow 119435, Russia
| | - Nona Benuni
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, Moscow 119992, Russia (M.Z.); (E.P.); (N.B.); (A.K.); (A.I.); (T.K.)
| | - Aleksandr Kotusov
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, Moscow 119992, Russia (M.Z.); (E.P.); (N.B.); (A.K.); (A.I.); (T.K.)
| | - Tatyana Demina
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, Moscow 119992, Russia (M.Z.); (E.P.); (N.B.); (A.K.); (A.I.); (T.K.)
| | - Aleksandra Ivleva
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, Moscow 119992, Russia (M.Z.); (E.P.); (N.B.); (A.K.); (A.I.); (T.K.)
| | - Farida Adzhieva
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, Moscow 119992, Russia (M.Z.); (E.P.); (N.B.); (A.K.); (A.I.); (T.K.)
| | - Taisiya Krylova
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, Moscow 119992, Russia (M.Z.); (E.P.); (N.B.); (A.K.); (A.I.); (T.K.)
| | - Vladimir Ivashkin
- Department of Internal Medicine, Gastroenterology and Hepatology, Sechenov University, Moscow 119992, Russia (M.Z.); (E.P.); (N.B.); (A.K.); (A.I.); (T.K.)
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de Araújo ACJ, Freitas PR, Araújo IM, Siqueira GM, de Oliveira Borges JA, Alves DS, Miranda GM, Dos Santos Nascimento IJ, de Araújo-Júnior JX, da Silva-Júnior EF, de Aquino TM, Junior FJBM, Marinho ES, Dos Santos HS, Tintino SR, Coutinho HDM. Potentiating-antibiotic activity and absorption, distribution, metabolism, excretion and toxicity properties (ADMET) analysis of synthetic thiadiazines against multi-drug resistant (MDR) strains. Fundam Clin Pharmacol 2024; 38:84-98. [PMID: 37649138 DOI: 10.1111/fcp.12950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 08/03/2023] [Accepted: 08/10/2023] [Indexed: 09/01/2023]
Abstract
BACKGROUND Thiadiazines are heterocyclic compounds that contain two nitrogen atoms and one sulfur atom in their structure. These synthetic molecules have several relevant pharmacological activities, such as antifungal, antibacterial, and antiparasitic. OBJECTIVES The present study aimed to evaluate the possible in vitro and in silico interactions of compounds derived from thiadiazines. METHODS The compounds were initially synthesized, purified, and confirmed through HPLC methodology. Multi-drug resistant bacterial strains of Staphylococcus aureus 10 and Pseudomonas aeruginosa 24 were used to evaluate the direct and modifying antibiotic activity of thiadiazine derivatives. ADMET assays (absorption, distribution, metabolism, excretion, and toxicity) were conducted, which evaluated the influence of the compounds against thousands of macromolecules considered as bioactive targets. RESULTS There were modifications in the chemical synthesis in carbon 4 or 3 in one of the aromatic rings of the structure where different ions were added, ensuring a variability of products. It was possible to observe results that indicate the possibility of these compounds acting through the cyclooxygenase 2 mechanism, which, in addition to being involved in inflammatory responses, also acts by helping sodium reabsorption. The amine group present in thiadiazine analogs confers hydrophilic characteristics to the substances, but this primary characteristic has been altered due to alterations and insertions of other ligands. The characteristics of the analogs generally allow easy intestinal absorption, reduce possible hepatic toxic effects, and enable possible neurological and anti-inflammatory action. The antibacterial activity tests showed a slight direct action, mainly of the IJ23 analog. Some compounds were able to modify the action of the antibiotics gentamicin and norfloxacin against multi-drug resistant strains, indicating a possible synergistic action. CONCLUSIONS Among all the results obtained in the study, the relevance of thiadiazine analogs as possible coadjuvant drugs in the antibacterial, anti-inflammatory, and neurological action with low toxicity is clear. Need for further studies to verify these effects in living organisms is not ruled out.
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Affiliation(s)
| | - Priscilla Ramos Freitas
- Laboratory of Microbiology and Molecular Biology, LMBM, Universidade Regional do Cariri, Crato, Brazil
| | - Isaac Moura Araújo
- Laboratory of Microbiology and Molecular Biology, LMBM, Universidade Regional do Cariri, Crato, Brazil
| | - Gustavo Miguel Siqueira
- Laboratory of Microbiology and Molecular Biology, LMBM, Universidade Regional do Cariri, Crato, Brazil
| | | | - Daniel Sampaio Alves
- Laboratory of Microbiology and Molecular Biology, LMBM, Universidade Regional do Cariri, Crato, Brazil
| | | | - Igor José Dos Santos Nascimento
- Laboratory of Medicinal Chemistry, Institute of Pharmaceutical Sciences, Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - João Xavier de Araújo-Júnior
- Laboratory of Medicinal Chemistry, Institute of Pharmaceutical Sciences, Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - Edeildo Ferreira da Silva-Júnior
- Biological and Molecular Chemistry Research Group, Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - Thiago Mendonça de Aquino
- Laboratory of Synthesis and Research in Medicinal Chemistry, Research Group on Therapeutic Strategies - GPET, Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, Alagoas, Brazil
| | | | - Emmanuel Silva Marinho
- Laboratory of Chemistry of Natural and Synthetic Product, State University of Ceará, UECE, Fortaleza, Ceará, Brazil
| | - Helcio Silva Dos Santos
- Laboratory of Chemistry of Natural and Synthetic Product, State University of Ceará, UECE, Fortaleza, Ceará, Brazil
| | - Saulo Relison Tintino
- Laboratory of Microbiology and Molecular Biology, LMBM, Universidade Regional do Cariri, Crato, Brazil
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Shi C, Huang X, Wang D, Chu C, Shi Y, Yan B, Shan F, Zhang J, Zhang Z, Peng C, Tang BZ. Lipophilic AIEgens as the "Trojan Horse" with Discrepant Efficacy in Tracking and Treatment of Mycobacterial Infection. Adv Healthc Mater 2024; 13:e2301746. [PMID: 37747232 DOI: 10.1002/adhm.202301746] [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: 06/01/2023] [Revised: 08/07/2023] [Indexed: 09/26/2023]
Abstract
The highly contagious tuberculosis is a leading infectious killer, which urgently requires effective diagnosis and treatment methods. To address these issues, three lipophilic aggregation-induced emission (AIE) photosensitizers (TTMN, TTTMN, and MeOTTMN) are selected to evaluate their labeling and antimicrobial properties in vitro and in vivo. These three lipophilic AIEgens preserve low cytotoxicity and achieve real-time and non-invasive visualization of the process of mycobacteria infection in vitro and in vivo. More importantly, these AIEgens can be triggered by white light to produce reactive oxygen species (ROS), which is a highly efficient antibacterial reagent. Among these AIEgens, the TTMN photosensitizer has an outstanding antibacterial efficacy over the clinical first-line drug rifampicin at the same therapeutic concentration. Interestingly, this study also finds that TTMN can increase the expression of pro-inflammatory cytokines in the early stage of infection after light irradiation, indicating an additional pro-inflammatory role of TTMN. This work provides some feasibility basis for developing AIEgens-based agents for effectively destroying mycobacterium.
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Affiliation(s)
- Chunzi Shi
- Qingdao Institute, School of Life Medicine, Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Qingdao, 266500, China
- Department of Radiology, Ruijin Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, 200025, China
| | - Xueni Huang
- Qingdao Institute, School of Life Medicine, Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Qingdao, 266500, China
| | - Dong Wang
- Center for AIE Research, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Chengshengze Chu
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen, 518172, China
| | - Yuxin Shi
- Qingdao Institute, School of Life Medicine, Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Qingdao, 266500, China
| | - Bo Yan
- Qingdao Institute, School of Life Medicine, Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Qingdao, 266500, China
| | - Fei Shan
- Qingdao Institute, School of Life Medicine, Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Qingdao, 266500, China
| | - Jiulong Zhang
- Qingdao Institute, School of Life Medicine, Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Qingdao, 266500, China
| | - Zhiyong Zhang
- Qingdao Institute, School of Life Medicine, Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Qingdao, 266500, China
| | - Chen Peng
- Qingdao Institute, School of Life Medicine, Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Qingdao, 266500, China
| | - Ben Zhong Tang
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen, 518172, China
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18
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Nardulli P, Ballini A, Zamparella M, De Vito D. The Role of Stakeholders' Understandings in Emerging Antimicrobial Resistance: A One Health Approach. Microorganisms 2023; 11:2797. [PMID: 38004808 PMCID: PMC10673085 DOI: 10.3390/microorganisms11112797] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/10/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
The increasing misuse of antibiotics in human and veterinary medicine and in agroecosystems and the consequent selective pressure of resistant strains lead to multidrug resistance (AMR), an expanding global phenomenon. Indeed, this phenomenon represents a major public health target with significant clinical implications related to increased morbidity and mortality and prolonged hospital stays. The current presence of microorganisms multi-resistant to antibiotics isolated in patients is a problem because of the additional burden of disease it places on the most fragile patients and the difficulty of finding effective therapies. In recent decades, international organizations like the World Health Organization (WHO) and the European Centre for Disease Prevention and Control (ECDC) have played significant roles in addressing the issue of AMR. The ECDC estimates that in the European Union alone, antibiotic resistance causes 33,000 deaths and approximately 880,000 cases of disability each year. The epidemiological impact of AMR inevitably also has direct economic consequences related not only to the loss of life but also to a reduction in the number of days worked, increased use of healthcare resources for diagnostic procedures and the use of second-line antibiotics when available. In 2015, the WHO, recognising AMR as a complex problem that can only be addressed by coordinated multi-sectoral interventions, promoted the One Health approach that considers human, animal, and environmental health in an integrated manner. In this review, the authors try to address why a collaboration of all stakeholders involved in AMR growth and management is necessary in order to achieve optimal health for people, animals, plants, and the environment, highlighting that AMR is a growing threat to human and animal health, food safety and security, economic prosperity, and ecosystems worldwide.
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Affiliation(s)
- Patrizia Nardulli
- S.C. Farmacia e UMACA IRCCS Istituto Tumori “Giovanni Paolo II”, Viale O. Flacco 65, 70124 Bari, Italy;
| | - Andrea Ballini
- Department of Clinical and Experimental Medicine, University of Foggia, 71122 Foggia, Italy
| | | | - Danila De Vito
- Department of Translational Biomedicine and Neuroscience, Medical School, University Aldo Moro of Bari, 70124 Bari, Italy;
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19
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Dai JK, Dan WJ, Cao YD, Gao JX, Wang JR, Wan JB. Discovery of new quaternized norharmane dimers as potential anti-MRSA agents. J Adv Res 2023:S2090-1232(23)00328-4. [PMID: 37931657 DOI: 10.1016/j.jare.2023.11.005] [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: 07/23/2023] [Revised: 11/03/2023] [Accepted: 11/03/2023] [Indexed: 11/08/2023] Open
Abstract
INTRODUCTION Methicillin-resistant Staphylococcus aureus (MRSA)-caused infections greatly threaten public health. The discovery of natural-product-based anti-MRSA agents for treating infectious diseases has become one of the current research focuses. OBJECTIVES This study aims to identify promising anti-MRSA agents with a clear mechanism based on natural norharmane modified by quaternization or dimerization. METHODS A total of 32 norharmane analogues were prepared and characterized. Their antibacterial activities and resistance development propensity were tested by the broth double-dilution method. Cell counting kit-8 and hemolysis experiments were used to assess their biosafety. The plasma stability, bactericidal mode, and biofilm disruption effects were examined by colony counting and crystal violet staining assays. Fluorescence microscopy, metabolomic analysis, docking simulation and spectra titration revealed its anti-MRSA mechanisms. The mouse skin infection model was used to investigate the in vivo efficacy. RESULTS Compound 5a was selected as a potential anti-MRSA agent, which exhibited potent anti-MRSA activity in vitro and in vivo, low cytotoxicity and hemolysis under an effective dose. Moreover, compound 5a showed good stability in 50% plasma, a low tendency of resistance development and capabilities to disrupt bacterial biofilms. The mechanism studies revealed that compound 5a could inhibit the biosynthesis of bacteria cell walls, damage the membrane, disturb energy metabolism and amino acid metabolism pathways, and interfere with protein synthesis and nucleic acid function. CONCLUSIONS These results suggested that compound 5a is a promising candidate for combating MRSA infections, providing valuable information for further exploiting a new generation of therapeutic antibiotics.
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Affiliation(s)
- Jiang-Kun Dai
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau SAR, China; School of Life Science and Technology, Weifang Medical University, Shandong, China
| | - Wen-Jia Dan
- School of Life Science and Technology, Weifang Medical University, Shandong, China
| | - Yi-Dan Cao
- School of Life Science and Technology, Weifang Medical University, Shandong, China
| | - Ji-Xiang Gao
- School of Life Science and Technology, Weifang Medical University, Shandong, China
| | - Jun-Ru Wang
- College of Chemistry & Pharmacy, Northwest A&F University, Shaanxi, China
| | - Jian-Bo Wan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, Macau SAR, China.
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20
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Shukla S, Rawat P, Sharma P, Trivedi P, Ghous F, Bishnoi A. Spectroscopic characterization, molecular docking and machine learning studies of sulphur containing hydrazide derivatives. Phys Chem Chem Phys 2023; 25:27677-27693. [PMID: 37812135 DOI: 10.1039/d3cp01133j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Machine learning applied in chemistry is a growing field of research. For assessing structure-property variations, this paper describes in silico studies of the hydrazide derivatives of thiosemicarbazide (TSCZ) and thiocarbohydrazide (TCHZ). The structures of TSCZ and TCHZ have been elucidated using modern spectroscopic techniques. The UV-vis spectra showed strong charge transfer transitions (π-π*) for TSCZ and TCHZ with high extinction coefficients. The NBO analysis showed orbital overlap between lp1 (N2) and σ* (C3-S4) in TSCZ and TCHZ due to intramolecular charge transfer. The first hyperpolarizabilities (β0) for TSCZ and TCHZ were found to be 0.7155 and 2.1615 × 10-30 esu, respectively, indicating their greater suitability for NLO applications as compared to standard reference urea. The strong electrophilic behaviour of TSCZ and TCHZ has been indicated by their global elecrophilicity index. The electrophilic reactivity descriptor analysis indicated that the investigated molecules could serve as precursors for the targeted synthesis of new heterocyclic derivatives. The docking studies showed appreciable binding energies with target proteins having PDB IDs 2WJE and 6CLU of Gram-positive bacteria, namely, Streptococcus pneumoniae phosphatase (PTP-CPS4B) and Staphylococcus aureus dihydropteroate synthase (saDHPS), respectively, for TSCZ and TCHZ, predicting good antimicrobial activity.
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Affiliation(s)
- Soni Shukla
- Department of Chemistry, University of Lucknow, Lucknow-226007, Uttar Pradesh, India.
| | - Poonam Rawat
- Department of Chemistry, University of Lucknow, Lucknow-226007, Uttar Pradesh, India.
| | - Pulkit Sharma
- Department of Chemistry, University of Lucknow, Lucknow-226007, Uttar Pradesh, India.
| | - Prince Trivedi
- Department of Chemistry, University of Lucknow, Lucknow-226007, Uttar Pradesh, India.
| | - Faraz Ghous
- Department of Chemistry, University of Lucknow, Lucknow-226007, Uttar Pradesh, India.
| | - Abha Bishnoi
- Department of Chemistry, University of Lucknow, Lucknow-226007, Uttar Pradesh, India.
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21
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Schelz Z, Muddather HF, Zupkó I. Repositioning of HMG-CoA Reductase Inhibitors as Adjuvants in the Modulation of Efflux Pump-Mediated Bacterial and Tumor Resistance. Antibiotics (Basel) 2023; 12:1468. [PMID: 37760764 PMCID: PMC10525194 DOI: 10.3390/antibiotics12091468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023] Open
Abstract
Efflux pump (EP)-mediated multidrug resistance (MDR) seems ubiquitous in bacterial infections and neoplastic diseases. The diversity and lack of specificity of these efflux mechanisms raise a great obstacle in developing drugs that modulate efflux pumps. Since developing novel chemotherapeutic drugs requires large investments, drug repurposing offers a new approach that can provide alternatives as adjuvants in treating resistant microbial infections and progressive cancerous diseases. Hydroxy-methyl-glutaryl coenzyme-A (HMG-CoA) reductase inhibitors, also known as statins, are promising agents in this respect. Originally, statins were used in the therapy of dyslipidemia and for the prevention of cardiovascular diseases; however, extensive research has recently been performed to elucidate the functions of statins in bacterial infections and cancers. The mevalonate pathway is essential in the posttranslational modification of proteins related to vital eukaryotic cell functions. In this article, a comparative review is given about the possible role of HMG-CoA reductase inhibitors in managing diseases of bacterial and neoplastic origin. Molecular research and clinical studies have proven the justification of statins in this field. Further well-designed clinical trials are urged to clarify the significance of the contribution of statins to the lower risk of disease progression in bacterial infections and cancerous diseases.
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Affiliation(s)
| | | | - István Zupkó
- Institute of Pharmacodynamics and Biopharmacy, Faculty of Pharmacy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary; (Z.S.); (H.F.M.)
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22
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Jaroszewski J, Mamun N, Czaja K. Bidirectional Interaction between Tetracyclines and Gut Microbiome. Antibiotics (Basel) 2023; 12:1438. [PMID: 37760733 PMCID: PMC10525114 DOI: 10.3390/antibiotics12091438] [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: 08/22/2023] [Revised: 09/06/2023] [Accepted: 09/10/2023] [Indexed: 09/29/2023] Open
Abstract
The escalating misuse of antibiotics, particularly broad-spectrum antibiotics, has emerged as a pivotal driver of drug resistance. Among these agents, tetracyclines are widely prescribed for bacterial infections, but their indiscriminate use can profoundly alter the gut microbiome, potentially compromising both their effectiveness and safety. This review delves into the intricate and dynamic interplay between tetracyclines and the gut microbiome, shedding light on their reciprocal influence. By exploring the effects of tetracyclines on the gut microbiome and the impact of gut microbiota on tetracycline therapy, we seek to gain deeper insights into this complex relationship, ultimately guiding strategies for preserving antibiotic efficacy and mitigating resistance development.
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Affiliation(s)
- Jerzy Jaroszewski
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-718 Olsztyn, Poland;
| | - Niles Mamun
- Department of Biomedical Sciences, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA;
| | - Krzysztof Czaja
- Department of Biomedical Sciences, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA;
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23
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Aflakian F, Mirzavi F, Aiyelabegan HT, Soleimani A, Gholizadeh Navashenaq J, Karimi-Sani I, Rafati Zomorodi A, Vakili-Ghartavol R. Nanoparticles-based therapeutics for the management of bacterial infections: A special emphasis on FDA approved products and clinical trials. Eur J Pharm Sci 2023; 188:106515. [PMID: 37402428 DOI: 10.1016/j.ejps.2023.106515] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 06/04/2023] [Accepted: 07/01/2023] [Indexed: 07/06/2023]
Abstract
Microbial resistance has increased in recent decades as a result of the extensive and indiscriminate use of antibiotics. The World Health Organization listed antimicrobial resistance as one of ten major global public health threats in 2021. In particular, six major bacterial pathogens, including third-generation cephalosporin-resistant Escherichia coli, methicillin-resistant Staphylococcus aureus, carbapenem-resistant Acinetobacter baumannii, Klebsiella pneumoniae, Streptococcus pneumoniae, and Pseudomonas aeruginosa, were found to have the highest resistance-related death rates in 2019. To respond to this urgent call, the creation of new pharmaceutical technologies based on nanoscience and drug delivery systems appears to be the promising strategy against microbial resistance in light of recent advancements, particularly the new knowledge of medicinal biology. Nanomaterials are often defined as substances having sizes between 1 and 100 nm. If the material is used on a small scale; its properties significantly change. They come in a variety of sizes and forms to help provide distinguishing characteristics for a wide range of functions. The field of health sciences has demonstrated a strong interest in numerous nanotechnology applications. Therefore, in this review, prospective nanotechnology-based therapeutics for the management of bacterial infections with multiple medication resistance are critically examined. Recent developments in these innovative treatment techniques are described, with an emphasis on preclinical, clinical, and combinatorial approaches.
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Affiliation(s)
- Fatemeh Aflakian
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Farshad Mirzavi
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | | | - Anvar Soleimani
- Department of Medical Microbiology, College of Health Sciences, Cihan University-Sulaimaniya, Sulaimaniya, 46001, Kurdistan Region, Iraq
| | | | - Iman Karimi-Sani
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Abolfazl Rafati Zomorodi
- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Roghayyeh Vakili-Ghartavol
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran; Nanomedicine and Nanobiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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24
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Zhao Y, Wang Y, Wang X, Qi R, Yuan H. Recent Progress of Photothermal Therapy Based on Conjugated Nanomaterials in Combating Microbial Infections. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2269. [PMID: 37570588 PMCID: PMC10421263 DOI: 10.3390/nano13152269] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 07/30/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023]
Abstract
Photothermal therapy has the advantages of non-invasiveness, low toxicity, simple operation, a broad spectrum of antibacterial ability, and non-proneness to developing drug resistance, which provide it with irreplaceable superiority in fighting against microbial infection. The effect of photothermal therapy is closely related to the choice of photothermal agent. Conjugated nanomaterials are potential candidates for photothermal agents because of their easy modification, excellent photothermal conversion efficiency, good photostability, and biodegradability. In this paper, the application of photothermal agents based on conjugated nanomaterials in photothermal antimicrobial treatment is reviewed, including conjugated small molecules, conjugated oligomers, conjugated polymers, and pseudo-conjugated polymers. At the same time, the application of conjugated nanomaterials in the combination of photothermal therapy (PTT) and photodynamic therapy (PDT) is briefly introduced. Finally, the research status, limitations, and prospects of photothermal therapy using conjugated nanomaterials as photothermal agents are discussed.
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Affiliation(s)
- Yue Zhao
- Department of Chemistry, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Yi Wang
- Department of Chemistry, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Xiaoyu Wang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Ruilian Qi
- Department of Chemistry, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Huanxiang Yuan
- Department of Chemistry, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
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25
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Kaiser KG, Delattre V, Frost VJ, Buck GW, Phu JV, Fernandez TG, Pavel IE. Nanosilver: An Old Antibacterial Agent with Great Promise in the Fight against Antibiotic Resistance. Antibiotics (Basel) 2023; 12:1264. [PMID: 37627684 PMCID: PMC10451389 DOI: 10.3390/antibiotics12081264] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/21/2023] [Accepted: 07/27/2023] [Indexed: 08/27/2023] Open
Abstract
Antibiotic resistance in bacteria is a major problem worldwide that costs 55 billion USD annually for extended hospitalization, resource utilization, and additional treatment expenditures in the United States. This review examines the roles and forms of silver (e.g., bulk Ag, silver salts (AgNO3), and colloidal Ag) from antiquity to the present, and its eventual incorporation as silver nanoparticles (AgNPs) in numerous antibacterial consumer products and biomedical applications. The AgNP fabrication methods, physicochemical properties, and antibacterial mechanisms in Gram-positive and Gram-negative bacterial models are covered. The emphasis is on the problematic ESKAPE pathogens and the antibiotic-resistant pathogens of the greatest human health concern according to the World Health Organization. This review delineates the differences between each bacterial model, the role of the physicochemical properties of AgNPs in the interaction with pathogens, and the subsequent damage of AgNPs and Ag+ released by AgNPs on structural cellular components. In closing, the processes of antibiotic resistance attainment and how novel AgNP-antibiotic conjugates may synergistically reduce the growth of antibiotic-resistant pathogens are presented in light of promising examples, where antibiotic efficacy alone is decreased.
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Affiliation(s)
- Kyra G. Kaiser
- Department of Physical and Environmental Sciences, Texas A&M University Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA; (K.G.K.); (V.D.); (G.W.B.)
- Department of Life Sciences, Texas A&M University Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA
| | - Victoire Delattre
- Department of Physical and Environmental Sciences, Texas A&M University Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA; (K.G.K.); (V.D.); (G.W.B.)
- Department of Life Sciences, Texas A&M University Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA
| | - Victoria J. Frost
- Department of Chemistry, Physics, Geology and the Environment, Winthrop University, 701 Oakland Avenue, Rock Hill, SC 29733, USA; (V.J.F.); (J.V.P.)
- Department of Biology, Winthrop University, 701 Oakland Avenue, Rock Hill, SC 29733, USA
| | - Gregory W. Buck
- Department of Physical and Environmental Sciences, Texas A&M University Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA; (K.G.K.); (V.D.); (G.W.B.)
- Department of Life Sciences, Texas A&M University Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA
| | - Julianne V. Phu
- Department of Chemistry, Physics, Geology and the Environment, Winthrop University, 701 Oakland Avenue, Rock Hill, SC 29733, USA; (V.J.F.); (J.V.P.)
- Department of Biology, Winthrop University, 701 Oakland Avenue, Rock Hill, SC 29733, USA
| | - Timea G. Fernandez
- Department of Chemistry, Physics, Geology and the Environment, Winthrop University, 701 Oakland Avenue, Rock Hill, SC 29733, USA; (V.J.F.); (J.V.P.)
- Department of Biology, Winthrop University, 701 Oakland Avenue, Rock Hill, SC 29733, USA
| | - Ioana E. Pavel
- Department of Physical and Environmental Sciences, Texas A&M University Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA; (K.G.K.); (V.D.); (G.W.B.)
- Department of Life Sciences, Texas A&M University Corpus Christi, 6300 Ocean Drive, Corpus Christi, TX 78412, USA
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26
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Labes A. Marine Resources Offer New Compounds and Strategies for the Treatment of Skin and Soft Tissue Infections. Mar Drugs 2023; 21:387. [PMID: 37504918 PMCID: PMC10381745 DOI: 10.3390/md21070387] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 07/29/2023] Open
Abstract
Bioprospecting of the marine environment for drug development has gained much attention in recent years owing to its massive chemical and biological diversity. Drugs for the treatment of skin and soft tissue infections have become part of the search, mainly with respect to enlarging the number of available antibiotics, with a special focus on multidrug-resistant Gram-positive bacteria, being the major causative agents in this field. Marine resources offer novel natural products with distinct biological activities of pharmaceutical importance, having the chance to provide new chemical scaffolds and new modes of action. New studies advance the field by proposing new strategies derived from an ecosystemic understanding for preventive activities against biofilms and new compounds suitable as disinfectants, which sustain the natural flora of the skin. Still, the development of new compounds is often stuck at the discovery level, as marine biotechnology also needs to overcome technological bottlenecks in drug development. This review summarizes its potential and shows these bottlenecks and new approaches.
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Affiliation(s)
- Antje Labes
- Department of Energy and Biotechnology, Flensburg University of Applied Sciences ZAiT, Kanzleistraße 91-93, D-24943 Flensburg, Germany
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27
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De Gaetano GV, Lentini G, Famà A, Coppolino F, Beninati C. Antimicrobial Resistance: Two-Component Regulatory Systems and Multidrug Efflux Pumps. Antibiotics (Basel) 2023; 12:965. [PMID: 37370284 DOI: 10.3390/antibiotics12060965] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/22/2023] [Accepted: 05/24/2023] [Indexed: 06/29/2023] Open
Abstract
The number of multidrug-resistant bacteria is rapidly spreading worldwide. Among the various mechanisms determining resistance to antimicrobial agents, multidrug efflux pumps play a noteworthy role because they export extraneous and noxious substrates from the inside to the outside environment of the bacterial cell contributing to multidrug resistance (MDR) and, consequently, to the failure of anti-infective therapies. The expression of multidrug efflux pumps can be under the control of transcriptional regulators and two-component systems (TCS). TCS are a major mechanism by which microorganisms sense and reply to external and/or intramembrane stimuli by coordinating the expression of genes involved not only in pathogenic pathways but also in antibiotic resistance. In this review, we describe the influence of TCS on multidrug efflux pump expression and activity in some Gram-negative and Gram-positive bacteria. Taking into account the strict correlation between TCS and multidrug efflux pumps, the development of drugs targeting TCS, alone or together with already discovered efflux pump inhibitors, may represent a beneficial strategy to contribute to the fight against growing antibiotic resistance.
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Affiliation(s)
| | - Germana Lentini
- Department of Human Pathology, University of Messina, 98124 Messina, Italy
| | - Agata Famà
- Department of Human Pathology, University of Messina, 98124 Messina, Italy
| | - Francesco Coppolino
- Department of Biomedical, Dental and Imaging Sciences, University of Messina, 98124 Messina, Italy
| | - Concetta Beninati
- Department of Human Pathology, University of Messina, 98124 Messina, Italy
- Scylla Biotech Srl, 98124 Messina, Italy
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28
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Pereira L, Cotas J. Therapeutic Potential of Polyphenols and Other Micronutrients of Marine Origin. Mar Drugs 2023; 21:323. [PMID: 37367648 DOI: 10.3390/md21060323] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/22/2023] [Accepted: 05/25/2023] [Indexed: 06/28/2023] Open
Abstract
Polyphenols are compounds found in various plants and foods, known for their antioxidant and anti-inflammatory properties. Recently, researchers have been exploring the therapeutic potential of marine polyphenols and other minor nutrients that are found in algae, fish and crustaceans. These compounds have unique chemical structures and exhibit diverse biological properties, including anti-inflammatory, antioxidant, antimicrobial and antitumor action. Due to these properties, marine polyphenols are being investigated as possible therapeutic agents for the treatment of a wide variety of conditions, such as cardiovascular disease, diabetes, neurodegenerative diseases and cancer. This review focuses on the therapeutic potential of marine polyphenols and their applications in human health, and also, in marine phenolic classes, the extraction methods, purification techniques and future applications of marine phenolic compounds.
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Affiliation(s)
- Leonel Pereira
- MARE-Marine and Environmental Sciences Centre/ARNET-Aquatic Research Network, IATV-Institute of Environment, Technology and Life, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
- Instituto do Ambiente Tecnologia e Vida, Faculdade de Ciências e Tecnologia, Rua Sílvio Lima, 3030-790 Coimbra, Portugal
| | - João Cotas
- MARE-Marine and Environmental Sciences Centre/ARNET-Aquatic Research Network, IATV-Institute of Environment, Technology and Life, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
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29
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Leanse LG, Hong W, de Souza Rastelli AN. Editorial: Photonics-based diagnosis and treatment of infectious and inflammatory diseases. Front Microbiol 2023; 14:1205032. [PMID: 37187541 PMCID: PMC10175852 DOI: 10.3389/fmicb.2023.1205032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 04/14/2023] [Indexed: 05/17/2023] Open
Affiliation(s)
- Leon G. Leanse
- Health and Sport Sciences Hub, University of Gibraltar, Gibraltar, Gibraltar
- Wellman Center for Photomedicine, Harvard Medical School, Massachusetts General Hospital, Boston, MA, United States
- *Correspondence: Leon G. Leanse
| | - Weili Hong
- Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Alessandra Nara de Souza Rastelli
- Department of Restorative Dentistry, Araraquara School of Dentistry, São Paulo State University-UNESP, Araraquara, São Paulo, Brazil
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