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Moubayed NMS, Alsabbagh R, Smiline GAS, Gunasekaran S, Alshihri S, Sabour A. Evaluation of phyto-gallic acid as a potential inhibitor of Staphylococcus aureus efflux pump mediated tetracycline resistance: an in-vitro and in-silico study. Nat Prod Res 2024:1-8. [PMID: 38733626 DOI: 10.1080/14786419.2024.2349810] [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: 01/22/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024]
Abstract
Plants contain many bioactive compounds with potent antibacterial and efflux pump inhibitory activity (EPI). In this study, gallic acid extracted from pomegranate molasses by analytical HPLC holds promise as an EPI drug for Staphylococcus aureus mediated tetracycline resistance, it lowered the bacterial resistance and reversed the mechanism via tet family efflux pump, using molecular technique and in-silico molecular docking analysis. Extracted gallic acid combined with tetracycline demonstrated a significant decrease in the minimal inhibitory concentration MIC compared to its single activity. Similarly, little growth and lower fluorescence of S. aureus were observed on ethidium bromide (2.5 mg/mL) agar plates, indicating a reversible efflux pump mechanism and a potent EPI activity. Molecular docking demonstrated a promising affinity binding energy between gallic acid and tet efflux genes, opening a new baseline in bacterial infection treatment. PCR for tetK and Qac A/B genes failed to show any relation between tet genes and gallic acid.
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Affiliation(s)
- Nadine M S Moubayed
- Department of Botany and Microbiology, Science College, King Saud University, Riyadh, Saudi Arabia
| | - Ruba Alsabbagh
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Girija A S Smiline
- Department of Microbiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences [SIMATS], Saveetha University, Chennai, Tamilnadu, India
| | - Shoba Gunasekaran
- Department of Biotechnology, Dwaraka Doss Goverdhan Doss Vaishnav College (Autonomous), University of Madras, Chennai, Tamil Nadu, India
| | - Sameeha Alshihri
- Department of Botany and Microbiology, Science College, King Saud University, Riyadh, Saudi Arabia
| | - Amal Sabour
- Department of Botany and Microbiology, Science College, King Saud University, Riyadh, Saudi Arabia
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Martin ALAR, Pereira RLS, Rocha JE, Farias PAM, Freitas TS, de Lemos Caldas FR, Figueredo FG, Sampaio NFL, Ribeiro-Filho J, Menezes IRDA, Brancaglion GA, de Paulo DC, Carvalho DT, Lima MA, Coutinho HDM, Fonteles MMF. In vitro and in silico evidences about the inhibition of MepA efflux pump by coumarin derivatives. Microb Pathog 2023; 182:106246. [PMID: 37454945 DOI: 10.1016/j.micpath.2023.106246] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 07/06/2023] [Accepted: 07/07/2023] [Indexed: 07/18/2023]
Abstract
The discovery of antibiotics has significantly transformed the outcomes of bacterial infections in the last decades. However, the development of antibiotic resistance mechanisms has allowed an increasing number of bacterial strains to overcome the action of antibiotics, decreasing their effectiveness against infections they were developed to treat. This study aimed to evaluate the antibacterial activity of synthetic coumarins Staphylococcus aureus in vitro and analyze their interaction with the MepA efflux pump in silico. The Minimum Inhibitory Concentration (MIC) determination showed that none of the test compounds have antibacterial activity. However, all coumarin derivatives decreased the MIC of the standard efflux inhibitor ethidium bromide, indicating antibacterial synergism. On the other hand, the C14 derivative potentiated the antibacterial activity of ciprofloxacin against the resistant strain. In silico analysis showed that C9, C11, and C13 coumarins showed the most favorable interaction with the MepA efflux pump. Nevertheless, due to the present in silico and in vitro investigation limitations, further experimental research is required to confirm the therapeutic potential of these compounds in vivo.
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Affiliation(s)
- Ana Luíza A R Martin
- Federal University of Ceará - UFC, Brazil; Faculty of Medicine Estácio Juazeiro do Norte - Estácio Juazeiro do Norte, Brazil
| | | | | | - Pablo A M Farias
- Faculty of Medicine Estácio Juazeiro do Norte - Estácio Juazeiro do Norte, Brazil
| | | | | | - Fernando G Figueredo
- Regional University of Cariri - URCA, Brazil; Faculty of Medicine Estácio Juazeiro do Norte - Estácio Juazeiro do Norte, Brazil
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Varela MF, Stephen J, Bharti D, Lekshmi M, Kumar S. Inhibition of Multidrug Efflux Pumps Belonging to the Major Facilitator Superfamily in Bacterial Pathogens. Biomedicines 2023; 11:1448. [PMID: 37239119 PMCID: PMC10216197 DOI: 10.3390/biomedicines11051448] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/07/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Bacterial pathogens resistant to multiple structurally distinct antimicrobial agents are causative agents of infectious disease, and they thus constitute a serious concern for public health. Of the various bacterial mechanisms for antimicrobial resistance, active efflux is a well-known system that extrudes clinically relevant antimicrobial agents, rendering specific pathogens recalcitrant to the growth-inhibitory effects of multiple drugs. In particular, multidrug efflux pump members of the major facilitator superfamily constitute central resistance systems in bacterial pathogens. This review article addresses the recent efforts to modulate these antimicrobial efflux transporters from a molecular perspective. Such investigations can potentially restore the clinical efficacy of infectious disease chemotherapy.
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Affiliation(s)
- Manuel F. Varela
- Department of Biology, Eastern New Mexico University, Station 33, Portales, NM 88130, USA
| | - Jerusha Stephen
- ICAR-Central Institute of Fisheries Education (CIFE), Mumbai 400061, India; (J.S.); (D.B.); (M.L.); (S.K.)
| | - Deeksha Bharti
- ICAR-Central Institute of Fisheries Education (CIFE), Mumbai 400061, India; (J.S.); (D.B.); (M.L.); (S.K.)
| | - Manjusha Lekshmi
- ICAR-Central Institute of Fisheries Education (CIFE), Mumbai 400061, India; (J.S.); (D.B.); (M.L.); (S.K.)
| | - Sanath Kumar
- ICAR-Central Institute of Fisheries Education (CIFE), Mumbai 400061, India; (J.S.); (D.B.); (M.L.); (S.K.)
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Hui YJ, Chen H, Peng XC, Li LG, Di MJ, Liu H, Hu XH, Yang Y, Zhao KL, Li TF, Yu TT, Wang WX. Up-regulation of ABCG2 by MYBL2 deletion drives Chlorin e6-mediated photodynamic therapy resistance in colorectal cancer. Photodiagnosis Photodyn Ther 2023; 42:103558. [PMID: 37030434 DOI: 10.1016/j.pdpdt.2023.103558] [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: 02/19/2023] [Revised: 04/04/2023] [Accepted: 04/05/2023] [Indexed: 04/10/2023]
Abstract
OBJECTIVE Photodynamic therapy (PDT) is an effective therapeutic strategy for colorectal cancer at an early stage. However, malignant cells' resistance to photodynamic agents can lead to treatment failure. MYBL2 (B-Myb) is an oncogene in colorectal carcinogenesis and development, for which little research has focused on its effect on drug resistance. MATERIALS AND METHODS In the present work, a colorectal cancer cell line with a stable knockdown of MYBL2 (ShB-Myb) was constructed first. Chlorin e6 (Ce6) was utilized to induced PDT. The anti-cancer efficacy was measured by CCK-8, PI staining, and Western blots. The drug uptake of Ce6 was assayed by flow cytometry and confocal microscopy. The ROS generation was detected by the CellROX probe. DDSB and DNA damage were assayed through comet experiment and Western blots. The over-expression of MYBL2 was conducted by MYBL2 plasmid. RESULTS The findings indicated that the viability of ShB-Myb treated with Ce6-PDT was not decreased compared to control SW480 cells (ShNC), which were resistant to PDT. Further investigation revealed reduced photosensitizer enrichment and mitigated oxidative DNA damage in colorectal cancer cells with depressed MYBL2. It turned out that SW480 cells knocking down MYBL2 showed phosphorylation of NF-κB and led to up-regulation of ABCG2 expression thereupon. When MYBL2 was replenished back in MYBL2-deficient colorectal cancer cells, phosphorylation of NF-κB was blocked and ABCG2 expression up-regulation was suppressed. Additionally, replenishment of MYBL2 also increased the enrichment of Ce6 and the efficacy of PDT. CONCLUSION In summary, MYBL2 absence in colorectal cancer contributes to drug resistance by activating NF-κB to up-regulate ABCG2 and thereby leading to photosensitizer Ce6 efflux. This study provides a novel theoretical basis and strategy for how to effectively improve the anti-tumor efficacy of PDT.
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Affiliation(s)
- Yuan-Jian Hui
- Department of Hepatobiliary Surgery, Renmin Hospital of Wuhan University, Jiefang road No. 238, Wuhan 430060, Hubei Province, China; Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Renmin south road No. 32, Shiyan 442000, Hubei Province, China
| | - Hao Chen
- Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Renmin south road No. 30, Shiyan 442000, Hubei Province, China
| | - Xing-Chun Peng
- Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Renmin south road No. 30, Shiyan 442000, Hubei Province, China
| | - Liu-Gen Li
- Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Renmin south road No. 30, Shiyan 442000, Hubei Province, China
| | - Mao-Jun Di
- Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Renmin south road No. 32, Shiyan 442000, Hubei Province, China
| | - Hui Liu
- Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Renmin south road No. 32, Shiyan 442000, Hubei Province, China
| | - Xu-Hao Hu
- Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Renmin south road No. 32, Shiyan 442000, Hubei Province, China
| | - Yan Yang
- Department of General Surgery, Taihe Hospital, Hubei University of Medicine, Renmin south road No. 32, Shiyan 442000, Hubei Province, China
| | - Kai-Liang Zhao
- Department of Hepatobiliary Surgery, Renmin Hospital of Wuhan University, Jiefang road No. 238, Wuhan 430060, Hubei Province, China
| | - Tong-Fei Li
- Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Renmin south road No. 30, Shiyan 442000, Hubei Province, China.
| | - Ting-Ting Yu
- Department of Hepatobiliary Surgery, Renmin Hospital of Wuhan University, Jiefang road No. 238, Wuhan 430060, Hubei Province, China; Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Renmin south road No. 30, Shiyan 442000, Hubei Province, China.
| | - Wei-Xing Wang
- Department of Hepatobiliary Surgery, Renmin Hospital of Wuhan University, Jiefang road No. 238, Wuhan 430060, Hubei Province, China.
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Study of chloroquine susceptibility potential of plants using pseudomonas aeruginosa as in vitro model. 3 Biotech 2022; 12:329. [PMID: 36285247 PMCID: PMC9587148 DOI: 10.1007/s13205-022-03382-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 09/26/2022] [Indexed: 11/05/2022] Open
Abstract
Chloroquine (CQ) is mainly known for antimalarial activity but due to lower sensitivity, it has not been well explored in the microbial disease treatment. In the present investigation, we attempted to enhance the CQ sensitivity in Pseudomonas aeruginosa. Presence of efflux pump is well demonstrated in bacterial system which plays an important role in drug sensitivity and resistance in bacteria and also serves other functions. Taking the advantage of presence of efflux pump in Pseudomonas aeruginosa, we made an attempt to sensitize the Pseudomonas aeruginosa with various plant extracts and phytochemicals for the development of CQ sensitivity. Ten rationally selected plant extracts were screened for the development of chloroquine sensitivity in P. aeruginosa. The chloroquine susceptibility assay was demonstrated by combining CQ and verapamil (a known efflux pump inhibitor) as a standard in an in vitro assay system. Results were quite encouraging as methanolic extracts of Syzygium aromaticum, Zingiber officinale and Curcuma longa were able to enhance chloroquine sensitivity in P. aeruginosa by increasing the zone of inhibition in well-defined assay system. These plant extracts were finally analysed for the presence of various phytochemicals. The Syzygium aromaticum extract showed the presence of phytochemicals, such as quinones, phenol, triterpenoid, saponins, tannins, alkaloids and flavonoids. On the other hand, the methanolic extract of Zingiber officinale and Curcuma longa showed the presence of saponins, tannins, alkaloids and flavonoids in the extract. Towards the identification of active principle of selected plant extract for CQ sensitivity enhancement, thin-layer chromatography was performed and various phytocomponent bands were isolated. Flavonoid (Rf 0.44) in Syzygium aromaticum, alkaloid (Rf 0.43) in Zingiber officinale and phenol (Rf 0.62) in Curcuma longa were found responsible for the enhancement of CQ susceptibility in P. aeruginosa. This interesting finding confirmed the concept that a prior course or combination of plant extracts or phytochemicals with chloroquine can be effective against P. aeruginosa. Present investigation successfully presented the proof of concept for the enhancement of chloroquine sensitivity in bacterial system by modulating an efflux pump. Concept can be explored for repurposing chloroquine for new applications.
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Transcriptome analysis reveals reasons for the low tolerance of Clostridium tyrobutyricum to furan derivatives. Appl Microbiol Biotechnol 2022; 107:327-339. [DOI: 10.1007/s00253-022-12281-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 10/30/2022] [Accepted: 11/04/2022] [Indexed: 11/25/2022]
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Shang C, Bu J, Song C. Preparation, Antimicrobial Properties under Different Light Sources, Mechanisms and Applications of TiO 2: A Review. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15175820. [PMID: 36079203 PMCID: PMC9457460 DOI: 10.3390/ma15175820] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/05/2022] [Accepted: 08/06/2022] [Indexed: 05/27/2023]
Abstract
Traditional antimicrobial methods, such as antibiotics and disinfectants, may cause adverse effects, such as bacterial resistance and allergic reactions. Photocatalysts based on titanium dioxide (TiO2) have shown great potential in the field of antimicrobials because of their high efficiency, lack of pollution, and lack of side effects. This paper focuses on the antimicrobial activity of TiO2 under different light sources. To improve the photocatalytic efficiency of TiO2, we can reduce electron-hole recombination and extend the photocatalytic activity to the visible light region by doping with different ions or compounds and compounding with polymers. We can also improve the surface properties of materials, increase the contact area with microorganisms, and further enhance the resistance to microorganisms. In addition, we also reviewed their main synthesis methods, related mechanisms, and main application fields to provide new ideas for the enhancement of photocatalytic microorganism performance and application popularization in the future.
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Nejati L, Maram NS, Ahmady AZ. Preparation of Gentamicin Sulfate Nanoparticles using Eudragit RS-100 and Evaluation of Their Physicochemical Properties. INTERNATIONAL JOURNAL OF NANOSCIENCE 2021. [DOI: 10.1142/s0219581x21500496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Improving permeability and absorption of drugs are critical research challenges in pharmaceutical science. Gentamicin sulfate is an aminoglycoside antibiotic, which is very active against gram-negative bacteria; however, it has very poor bioavailability. This study aimed to prepare gentamicin nanoparticles with the intention of increased bioavailability. Accordingly, Eudragit RS-100 nanoparticles loaded with gentamicin sulfate were prepared by the double emulsification and solvent evaporation method, a proper technique for encapsulating hydrophilic molecules. Nanoparticles’ suspensions with polymer to drug ratios of 1:1 ([Formula: see text] and 2:1 ([Formula: see text]) were prepared, lyophilized and evaluated for their production yield, physicochemical properties and morphology. The mean particle size was 195.67[Formula: see text]nm and 228[Formula: see text]nm for [Formula: see text] and [Formula: see text], respectively. The formulations’ loading efficiencies were relatively high (85.73 for [Formula: see text] and 85.20 for [Formula: see text]). The nanoparticles’ surface charge (+40.5[Formula: see text]mV) was sufficient to inhibit their aggregation and facilitate the nanoparticles’ absorption through the gastrointestinal tract. The results of differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FT-IR) revealed that drug and polymer stabilized each other by physical interactions between their functional groups. Both formulations presented an initial burst drug release of nearly 20% after 30[Formula: see text]min in phosphate buffer (pH = 7.4). After 24[Formula: see text]h, [Formula: see text] did not release the drug completely, while [Formula: see text] released the whole drug. Overall, nanoparticles with proper characteristics were obtained. This study puts forward the necessity of conducting further research in order to explore the intestinal absorption of these nanoparticles and the possibility of being utilized for oral administration of gentamicin sulfate.
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Affiliation(s)
- Ladan Nejati
- Nanotechnology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Nader Shakiba Maram
- Nanotechnology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Amanollah Zarei Ahmady
- Marine Pharmaceutical Sciences Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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