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Yang F, Shu R, Dai W, Li B, Liu C, Yang H, Johnson HM, Yu S, Bai D, Yang W, Deng Y. H 2Se-evolving bio-heterojunctions promote cutaneous regeneration in infected wounds by inhibiting excessive cellular senescence. Biomaterials 2024; 311:122659. [PMID: 38861831 DOI: 10.1016/j.biomaterials.2024.122659] [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: 01/25/2024] [Revised: 06/04/2024] [Accepted: 06/06/2024] [Indexed: 06/13/2024]
Abstract
Pathogenic infection leads to excessive senescent cell accumulation and stagnation of wound healing. To address these issues, we devise and develop a hydrogen selenide (H2Se)-evolving bio-heterojunction (bio-HJ) composed of graphene oxide (GO) and FeSe2 to deracinate bacterial infection, suppress cellular senescence and remedy recalcitrant infected wounds. Excited by near-infrared (NIR) laser, the bio-HJ exerts desired photothermal and photodynamic effects, resulting in rapid disinfection. The crafted bio-HJ could also evolve gaseous H2Se to inhibit cellular senescence and dampen inflammation. Mechanism studies reveal the anti-senescence effects of H2Se-evolving bio-HJ are mediated by selenium pathway and glutathione peroxidase 1 (GPX1). More critically, in vivo experiments authenticate that the H2Se-evolving bio-HJ could inhibit cellular senescence and potentiate wound regeneration in rats. As envisioned, our work not only furnishes the novel gasotransmitter-delivering bio-HJ for chronic infected wounds, but also gets insight into the development of anti-senescence biomaterials.
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Affiliation(s)
- Fan Yang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, College of Biomedical Engineering, School of Chemical Engineering, Sichuan University, Chengdu, China; Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Rui Shu
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, College of Biomedical Engineering, School of Chemical Engineering, Sichuan University, Chengdu, China; Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Wenyu Dai
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, College of Biomedical Engineering, School of Chemical Engineering, Sichuan University, Chengdu, China; Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bin Li
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, College of Biomedical Engineering, School of Chemical Engineering, Sichuan University, Chengdu, China; Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chuang Liu
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, College of Biomedical Engineering, School of Chemical Engineering, Sichuan University, Chengdu, China
| | - Hang Yang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, College of Biomedical Engineering, School of Chemical Engineering, Sichuan University, Chengdu, China
| | - Hannah M Johnson
- Department of Chemistry, Washington State University, Washington, USA
| | - Sheng Yu
- Department of Chemistry, Washington State University, Washington, USA
| | - Ding Bai
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, College of Biomedical Engineering, School of Chemical Engineering, Sichuan University, Chengdu, China; Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Weizhong Yang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, College of Biomedical Engineering, School of Chemical Engineering, Sichuan University, Chengdu, China.
| | - Yi Deng
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, College of Biomedical Engineering, School of Chemical Engineering, Sichuan University, Chengdu, China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, China; Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, China.
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2
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Martins TJ, Parisi C, Pinto JG, Brambilla IDPR, Melilli B, Aleo D, Ferreira-Strixino J, Sortino S. Simultaneous photoactivation of a fluoroquinolone antibiotic and nitric oxide with fluorescence reporting. J Mater Chem B 2024; 12:7626-7634. [PMID: 39005154 DOI: 10.1039/d4tb01291g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
The achievement of smart pharmaceuticals whose bioactivity can be spatiotemporally controlled by light stimuli is known as photopharmacology, an emerging area aimed at improving the therapeutic outcome and minimizing side effects. This is especially attractive for antibiotics, for which the inevitable development of multidrug resistance and the dwindling of new clinically approved drugs represent the main drawbacks. Here, we show that nitrosation of the fluoroquinolone norfloxacin (NF), a broad-spectrum antibiotic, leads to the nitrosated bioconjugate NF-NO, which is inactive at the typical minimum inhibitory concentration of NF. Irradiation of NF-NO with visible blue light triggers the simultaneous release of NF and nitric oxide (NO). The photouncaging process is accompanied by the revival of the typical fluorescence emission of NF, quenched in NF-NO, which acts as an optical reporter. This permits the real-time monitoring of the photouncaging process, even within bacteria cells where antibacterial activity is switched on exclusively upon light irradiation. The mechanism of photorelease seems to occur through a two-step hopping electron transfer mediated by the lowest triplet state of NF-NO and the phosphate buffer ions or aminoacids such as tyrosine. Considering the well-known role of NO as an "unconventional" antibacterial, the NF-NO conjugate may represent a potential bimodal antibacterial weapon activatable on demand with high spatio-temporal control.
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Affiliation(s)
- Tassia J Martins
- PhotoChemLab, Department of Drug and Health Sciences, University of Catania, I-95125, Italy.
| | - Cristina Parisi
- PhotoChemLab, Department of Drug and Health Sciences, University of Catania, I-95125, Italy.
| | - Juliana Guerra Pinto
- Laboratory of Photobiology Applied to Health, Research and Development Institute, University of Vale do Paraíba, Urbanova I-2911, Brazil
| | | | | | - Danilo Aleo
- MEDIVIS S.r.l., Tremestieri Etneo, 95030 Catania, Italy
| | - Juliana Ferreira-Strixino
- Laboratory of Photobiology Applied to Health, Research and Development Institute, University of Vale do Paraíba, Urbanova I-2911, Brazil
| | - Salvatore Sortino
- PhotoChemLab, Department of Drug and Health Sciences, University of Catania, I-95125, Italy.
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3
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Vargas-Lizarazo AY, Ali MA, Mazumder NA, Kohli GM, Zaborska M, Sons T, Garnett M, Senanayake IM, Goodson BM, Vargas-Muñiz JM, Pond A, Jensik PJ, Olson ME, Hamilton-Brehm SD, Kohli P. Electrically polarized nanoscale surfaces generate reactive oxygenated and chlorinated species for deactivation of microorganisms. SCIENCE ADVANCES 2024; 10:eado5555. [PMID: 39093965 DOI: 10.1126/sciadv.ado5555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Accepted: 06/27/2024] [Indexed: 08/04/2024]
Abstract
Because of the decreasing supply of new antibiotics, recent outbreaks of infectious diseases, and the emergence of antibiotic-resistant microorganisms, it is imperative to develop new effective strategies for deactivating a broad spectrum of microorganisms and viruses. We have implemented electrically polarized nanoscale metallic (ENM) coatings that deactivate a wide range of microorganisms including Gram-negative and Gram-positive bacteria with greater than 6-log reduction in less than 10 minutes of treatment. The electrically polarized devices were also effective in deactivating lentivirus and Candida albicans. The key to the high deactivation effectiveness of ENM devices is electrochemical production of micromolar cuprous ions, which mediated reduction of oxygen to hydrogen peroxide. Formation of highly damaging species, hydroxyl radicals and hypochlorous acid, from hydrogen peroxide contributed to antimicrobial properties of the ENM devices. The electric polarization of nanoscale coatings represents an unconventional tool for deactivating a broad spectrum of microorganisms through in situ production of reactive oxygenated and chlorinated species.
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Affiliation(s)
- Annie Y Vargas-Lizarazo
- School of Chemical and Biomolecular Sciences, Southern Illinois University, Carbondale, IL 62901, USA
| | - M Aswad Ali
- School of Chemical and Biomolecular Sciences, Southern Illinois University, Carbondale, IL 62901, USA
| | - Nehal A Mazumder
- School of Chemical and Biomolecular Sciences, Southern Illinois University, Carbondale, IL 62901, USA
| | | | - Miroslava Zaborska
- School of Chemical and Biomolecular Sciences, Southern Illinois University, Carbondale, IL 62901, USA
| | - Tyler Sons
- Department of Microbiology, Southern Illinois University, Carbondale, IL 62901, USA
| | - Michelle Garnett
- Department of Microbiology, Southern Illinois University, Carbondale, IL 62901, USA
| | - Ishani M Senanayake
- School of Chemical and Biomolecular Sciences, Southern Illinois University, Carbondale, IL 62901, USA
| | - Boyd M Goodson
- School of Chemical and Biomolecular Sciences, Southern Illinois University, Carbondale, IL 62901, USA
| | - José M Vargas-Muñiz
- Department of Microbiology, Southern Illinois University, Carbondale, IL 62901, USA
| | - Amber Pond
- Department of Anatomy, Southern Illinois University School of Medicine, Carbondale, IL 62901, USA
| | - Philip J Jensik
- Department of Physiology, Southern Illinois University School of Medicine, Carbondale, IL 62901, USA
| | - Michael E Olson
- Department of Medical Microbiology, Immunology and Cell Biology, School of Medicine, Southern Illinois University, Springfield, IL 62702, USA
| | | | - Punit Kohli
- School of Chemical and Biomolecular Sciences, Southern Illinois University, Carbondale, IL 62901, USA
- Integrated Microscopy and Graphics Expertise (IMAGE) Center, Southern Illinois University, Carbondale, IL 62901, USA
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4
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Wolak T, Dicker D, Shifer Y, Grossman A, Rokach A, Shitrit M, Tal A. A safety evaluation of intermittent high-dose inhaled nitric oxide in viral pneumonia due to COVID-19: a randomised clinical study. Sci Rep 2024; 14:17201. [PMID: 39060420 PMCID: PMC11282178 DOI: 10.1038/s41598-024-68055-w] [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: 03/07/2024] [Accepted: 07/19/2024] [Indexed: 07/28/2024] Open
Abstract
High-dose inhaled Nitric Oxide (iNO) has been shown to have anti-inflammatory, vasodilator, and antimicrobial properties, resulting in improved arterial oxygenation as well as a beneficial therapeutic effect on lower respiratory tract infections. This study evaluated the safety and efficacy of 150-ppm intermittent iNO administered with a novel iNO-generator, for treating adults hospitalised for viral pneumonia. In this prospective, open-label, multicenter study, subjects aged 18-80, diagnosed with viral pneumonia received either standard supportive treatment alone (Control-Group) or combined with iNO for 40 min, 4 times per day up to 7 days (Treatment-Group). Out of 40 recruited subjects, 35 were included in the intention-to-treat population (34 with COVID-19). Adverse Events rate was similar between the groups (56.3% vs. 42.1%; respectively). No treatment-related adverse events were reported, while 2 serious adverse events were accounted for by underlying pre-existing conditions. Among the Treatment-Group, oxygen support duration was reduced by 2.7 days (Hazard Ratio = 2.8; p = 0.0339), a greater number of subjects reached oxygen saturation ≥ 93% within hospitalisation period (Hazard Ratio = 5.4; p = 0.049), and a trend for earlier discharge was demonstrated. Intermittent 150-ppm iNO-treatment is well-tolerated, safe, and beneficial compared to usual care for spontaneously breathing hospitalised adults diagnosed with COVID-19 viral pneumonia.
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Affiliation(s)
- Talya Wolak
- Department of Internal Medicine D, Shaare Zedek Medical Center, 12 Bait Shmuel St, P.O. Box 3235, 9103102, Jerusalem, Israel.
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel.
| | - D Dicker
- Internal Medicine D, Hasharon Hospital, Rabin Medical Center, Petah-Tikva, Israel
- Tel Aviv University Faculty of Medicine, Tel Aviv, Israel
| | - Y Shifer
- Internal Medicine D, Hasharon Hospital, Rabin Medical Center, Petah-Tikva, Israel
| | - A Grossman
- Internal Medicine B, Beilinson Hospital, Rabin Medical Center, Petah-Tikva, Israel
| | - A Rokach
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
- Pulmonary Institute, Shaare Zedek Medical Center, Jerusalem, Israel
| | - M Shitrit
- Respiratory Therapy Unit, Shaare Zedek Medical Center, Jerusalem, Israel
| | - A Tal
- Beyond Air, Ltd, Rehovot, Israel
- Faculty of Health Sciences, Ben Gurion University of the Negev, Beer Sheva, Israel
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5
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Choi S, Lee Y, Park S, Jang SY, Park J, Oh DW, Kim SM, Kim TH, Lee GS, Cho C, Kim BS, Lee D, Kim EH, Cheong HK, Moon JH, Song JJ, Hwang J, Kim MH. Dissemination of pathogenic bacteria is reinforced by a MARTX toxin effector duet. Nat Commun 2024; 15:6218. [PMID: 39043696 PMCID: PMC11266601 DOI: 10.1038/s41467-024-50650-0] [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: 02/02/2024] [Accepted: 07/15/2024] [Indexed: 07/25/2024] Open
Abstract
Multiple bacterial genera take advantage of the multifunctional autoprocessing repeats-in-toxin (MARTX) toxin to invade host cells. Secretion of the MARTX toxin by Vibrio vulnificus, a deadly opportunistic pathogen that causes primary septicemia, the precursor of sepsis, is a major driver of infection; however, the molecular mechanism via which the toxin contributes to septicemia remains unclear. Here, we report the crystal and cryo-electron microscopy (EM) structures of a toxin effector duet comprising the domain of unknown function in the first position (DUF1)/Rho inactivation domain (RID) complexed with human targets. These structures reveal how the duet is used by bacteria as a potent weapon. The data show that DUF1 acts as a RID-dependent transforming NADase domain (RDTND) that disrupts NAD+ homeostasis by hijacking calmodulin. The cryo-EM structure of the RDTND-RID duet complexed with calmodulin and Rac1, together with immunological analyses in vitro and in mice, provide mechanistic insight into how V. vulnificus uses the duet to suppress ROS generation by depleting NAD(P)+ and modifying Rac1 in a mutually-reinforcing manner that ultimately paralyzes first line immune responses, promotes dissemination of invaders, and induces sepsis. These data may allow development of tools or strategies to combat MARTX toxin-related human diseases.
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Affiliation(s)
- Sanghyeon Choi
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Korea
| | - Youngjin Lee
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Korea
| | - Shinhye Park
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Korea
- Department of Microbiology and Molecular Biology, Chungnam National University, Daejeon, 34134, Korea
| | - Song Yee Jang
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Korea
- Core Research Facility & Analysis Center, KRIBB, Daejeon, 34141, Korea
| | - Jongbin Park
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Korea
| | - Do Won Oh
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Korea
- Graduate School of Medical Science and Engineering, KAIST, Daejeon, 34141, Korea
| | - Su-Man Kim
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Korea
- Department of Biology Education, Chonnam National University, Gwangju, 61186, Korea
| | - Tae-Hwan Kim
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Korea
- College of Veterinary Medicine, Chungnam National University, Daejeon, 34134, Korea
| | - Ga Seul Lee
- Core Research Facility & Analysis Center, KRIBB, Daejeon, 34141, Korea
- College of Pharmacy, Chungbuk National University, Cheongju, Chungbuk, 28644, Korea
| | - Changyi Cho
- Department of Food Science and Biotechnology, Ewha Womans University, Seoul, 03760, Korea
| | - Byoung Sik Kim
- Department of Food Science and Biotechnology, Ewha Womans University, Seoul, 03760, Korea
| | - Donghan Lee
- Korea Basic Science Institute, Cheongju, Chungbuk, 28119, Korea
| | - Eun-Hee Kim
- Korea Basic Science Institute, Cheongju, Chungbuk, 28119, Korea
| | - Hae-Kap Cheong
- Korea Basic Science Institute, Cheongju, Chungbuk, 28119, Korea
| | - Jeong Hee Moon
- Core Research Facility & Analysis Center, KRIBB, Daejeon, 34141, Korea
| | - Ji-Joon Song
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea
| | - Jungwon Hwang
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Korea.
| | - Myung Hee Kim
- Microbiome Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, 34141, Korea.
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Lu L, Zhang Q, Aladelokun O, Berardi D, Shen X, Marin A, Garcia-Milian R, Roper J, Khan SA, Johnson CH. Asparagine synthetase and G-protein coupled estrogen receptor are critical responders to nutrient supply in KRAS mutant colorectal cancer. Int J Cancer 2024. [PMID: 39039782 DOI: 10.1002/ijc.35104] [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: 06/13/2023] [Revised: 06/28/2024] [Accepted: 07/02/2024] [Indexed: 07/24/2024]
Abstract
Survival differences exist in colorectal cancer (CRC) patients by sex and disease stage. However, the potential molecular mechanism(s) are not well understood. Here we show that asparagine synthetase (ASNS) and G protein-coupled estrogen receptor-1 (GPER1) are critical sensors of nutrient depletion and linked to poorer outcomes for females with CRC. Using a 3D spheroid model of isogenic SW48 KRAS wild-type (WT) and G12A mutant (MT) cells grown under a restricted nutrient supply, we found that glutamine depletion inhibited cell growth in both cell lines, whereas ASNS and GPER1 expression were upregulated in KRAS MT versus WT. Estradiol decreased growth in KRAS WT but had no effect on MT cells. Selective GPER1 and ASNS inhibitors suppressed cell proliferation with increased caspase-3 activity of MT cells under glutamine depletion condition particularly in the presence of estradiol. In a clinical colon cancer cohort from The Cancer Genome Atlas, both high GPER1 and ASNS expression were associated with poorer overall survival for females only in advanced stage tumors. These results suggest KRAS MT cells have mechanisms in place that respond to decreased nutrient supply, typically observed in advanced tumors, by increasing the expression of ASNS and GPER1 to drive cell growth. Furthermore, KRAS MT cells are resistant to the protective effects of estradiol under nutrient deplete conditions. The findings indicate that GPER1 and ASNS expression, along with the interaction between nutrient supply and KRAS mutations shed additional light on the mechanisms underlying sex differences in metabolism and growth in CRC, and have clinical implications in the precision management of KRAS mutant CRC.
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Affiliation(s)
- Lingeng Lu
- Department of Chronic Disease Epidemiology, Yale School of Public Health, Yale University, New Haven, Connecticut, USA
| | - Qian Zhang
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, Connecticut, USA
- Department of Colorectal Surgery, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine, Chinese Academy of Sciences, Hangzhou, Zhejiang, China
| | - Oladimeji Aladelokun
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, Connecticut, USA
| | - Domenica Berardi
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, Connecticut, USA
| | - Xinyi Shen
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, Connecticut, USA
| | - Audrey Marin
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, Connecticut, USA
| | - Rolando Garcia-Milian
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, Connecticut, USA
- Bioinformatics Support Program, Yale School of Medicine, Yale University, New Haven, Connecticut, USA
| | - Jatin Roper
- Division of Gastroenterology, Department of Medicine, Duke University, Durham, North Carolina, USA
- Department of Pharmacology and Cancer Biology, Duke University, Durham, North Carolina, USA
| | - Sajid A Khan
- Section of Surgical Oncology, Department of Surgery, Yale School of Medicine, Yale Cancer Center, Yale University, New Haven, Connecticut, USA
| | - Caroline H Johnson
- Department of Environmental Health Sciences, Yale School of Public Health, Yale University, New Haven, Connecticut, USA
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7
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Tantibhadrasapa A, Li S, Buddhasiri S, Sukjoi C, Mongkolkarvin P, Boonpan P, Wongpalee SP, Paenkaew P, Sutheeworapong S, Nakphaichit M, Nitisinprasert S, Hsieh MH, Thiennimitr P. Probiotic Limosilactobacillus reuteri KUB-AC5 decreases urothelial cell invasion and enhances macrophage killing of uropathogenic Escherichia coli in vitro study. Front Cell Infect Microbiol 2024; 14:1401462. [PMID: 39091675 PMCID: PMC11291381 DOI: 10.3389/fcimb.2024.1401462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 07/01/2024] [Indexed: 08/04/2024] Open
Abstract
Introduction Bacterial urinary tract infections (UTI) are among the most common infectious diseases worldwide. The rise of multidrug-resistant (MDR) uropathogenic Escherichia coli (UPEC) UTI cases is a significant threat to healthcare systems. Several probiotic bacteria have been proposed as an alternative to combat MDR UTI. Lactic acid bacteria in the genus Limosilactobacillus are some of the most studied and used probiotics. However, strain-specific effects play a critical role in probiotic properties. L. reuteri KUB-AC5 (AC5), isolated from the chicken gut, confers antimicrobial and immunobiotic effects against some human pathogens. However, the antibacterial and immune modulatory effects of AC5 on UPEC have never been explored. Methods Here, we investigated both the direct and indirect effects of AC5 against UPEC isolates (UTI89, CFT073, and clinical MDR UPEC AT31) in vitro. Using a spot-on lawn, agar-well diffusion, and competitive growth assays, we found that viable AC5 cells and cell-free components of this probiotic significantly reduced the UPEC growth of all strains tested. The human bladder epithelial cell line UM-UC-3 was used to assess the adhesion and pathogen-attachment inhibition properties of AC5 on UPEC. Results and discussion Our data showed that AC5 can attach to UM-UC-3 and decrease UPEC attachment in a dose-dependent manner. Pretreatment of UPEC-infected murine macrophage RAW264.7 cells with viable AC5 (multiplicity of infection, MOI = 1) for 24 hours enhanced macrophage-killing activity and increased proinflammatory (Nos2, Il6, and Tnfa) and anti-inflammatory (Il10) gene expression. These findings indicate the gut-derived AC5 probiotic could be a potential urogenital probiotic against MDR UTI.
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Affiliation(s)
| | - Songbo Li
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Key Laboratory of Tumor Immunopathology, Youjiang Medical University for Nationalities, Baise, China
| | - Songphon Buddhasiri
- Research Center for Veterinary Biosciences and Veterinary Public Health, Chiang Mai University, Chiang Mai, Thailand
- Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Chutikarn Sukjoi
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Panupon Mongkolkarvin
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Pattarapon Boonpan
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Somsakul Pop Wongpalee
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Prasobsook Paenkaew
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Sawannee Sutheeworapong
- Pilot Plant Development and Training Institute (PDTI), King Mongkut’s University of Technology Thonburi (KMUTT), Bangkok, Thailand
| | - Massalin Nakphaichit
- Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, Bangkok, Thailand
- Specialized Research Unit: Probiotics and Prebiotics for Health, Faculty of Agro-Industry, Kasetsart University, Bangkok, Thailand
| | - Sunee Nitisinprasert
- Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, Bangkok, Thailand
- Specialized Research Unit: Probiotics and Prebiotics for Health, Faculty of Agro-Industry, Kasetsart University, Bangkok, Thailand
| | - Michael H. Hsieh
- Department of Urology, School of Medicine and Health Sciences, The George Washington University, Washington, DC, United States
- Department of Pediatrics, School of Medicine and Health Sciences, The George Washington University, Washington, DC, United States
- Department of Microbiology, Immunology, and Tropical Medicine, School of Medicine and Health Sciences, The George Washington University, Washington, DC, United States
| | - Parameth Thiennimitr
- Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Research Center of Microbial Diversity and Sustainable Utilization, Chiang Mai University, Chiang Mai, Thailand
- Center of Multidisciplinary Technology for Advanced Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
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8
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Yang YJ, Jung YL, Shil A, Sarkar S, Ahn KH. Nitroreductase-Triggered Fluorophore Labeling of Cells and Tissues under Hypoxia. Anal Chem 2024; 96:11318-11325. [PMID: 38940602 DOI: 10.1021/acs.analchem.4c01274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
Several reductases, including nitroreductase, are upregulated under hypoxic conditions characterized by an oxygen-deficient microenvironment. Given that hypoxia is a prominent feature of solid tumors, our investigation focused on developing a bioconjugative probe designed for staining tissue under hypoxic conditions, particularly activated by nitroreductase. This probe, developed using our trigger-release-bioconjugation system rooted in the ortho-quinone methide chemistry, exhibited selective activation by nitroreductase and fluorophore labeling within mitochondria and endoplasmic reticulum. As a result, it displayed sustained fluorescence that persisted even after washing steps in cells and tissues. We applied this innovative probe to stain mouse kidney tissue in an acute kidney injury model induced by inadequate oxygen supply. Among various organ tissues examined, only kidney tissue showed significantly higher fluorescence in the injury model compared with the control tissue, as revealed by two-photon microscopic imaging. This research presents a promising avenue for the development of practical staining agents for image-guided tumor surgery.
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Affiliation(s)
- Yun Jae Yang
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, South Korea
| | - Yun Lim Jung
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, South Korea
| | - Anushree Shil
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, South Korea
| | - Sourav Sarkar
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, South Korea
| | - Kyo Han Ahn
- Department of Chemistry, Pohang University of Science and Technology, Pohang 37673, South Korea
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9
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Wei L, Han Y, Zheng J, Xu X, Zhu L. Accelerated dissemination of antibiotic resistant genes via conjugative transfer driven by deficient denitrification in biochar-based biofiltration systems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 934:173268. [PMID: 38754503 DOI: 10.1016/j.scitotenv.2024.173268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/25/2024] [Accepted: 05/13/2024] [Indexed: 05/18/2024]
Abstract
Biofiltration systems harbored and disseminated antibiotic resistance genes (ARGs), when confronting antibiotic-contained wastewater. Biochar, a widely used environmental remediation material, can mitigate antibiotic stress on adjoining microbes by lowering the availability of sorbed antibiotics, and enhance the attachment of denitrifiers. Herein, bench-scale biofiltration systems, packed with commercial biochars, were established to explore the pivotal drivers affecting ARG emergence. Results showed that biofiltration columns, achieving higher TN removal and denitrification capacity, showed a significant decrease in ARG accumulation (p < 0.05). The relative abundance of ARGs (0.014 ± 0.0008) in the attached biofilms decreased to 1/5-folds of that in the control group (0.065 ± 0.004). Functional analysis indicated ARGs' accumulation was less attributed to ARG activation or horizontal gene transfer (HGT) driven by sorbed antibiotics. Most denitrifiers, like Bradyrhizobium, Geothrix, etc., were found to be enriched and host ARGs. Nitrosative stress from deficient denitrification was demonstrated to be the dominant driver for affecting ARG accumulation and dissemination. Metagenomic and metaproteomic analysis revealed that nitrosative stress promoted the conjugative HGT of ARGs mainly via increasing the transmembrane permeability and enhancing the amino acid transport and metabolism, such as cysteine, methionine, and valine metabolism. Overall, this study highlighted the risks of deficient denitrification in promoting ARG transfer and transmission in biofiltration systems and natural ecosystems.
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Affiliation(s)
- Lecheng Wei
- Institute of Environment Pollution Control and Treatment, College of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China; Innovation Center of Yangtze River Delta, Zhejiang University
| | - Yutong Han
- Institute of Environment Pollution Control and Treatment, College of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China; Innovation Center of Yangtze River Delta, Zhejiang University
| | - Jingjing Zheng
- Institute of Environment Pollution Control and Treatment, College of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China; Innovation Center of Yangtze River Delta, Zhejiang University
| | - Xiangyang Xu
- Institute of Environment Pollution Control and Treatment, College of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China; Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety, Hangzhou 310058, China; Zhejiang Provincial Engineering Laboratory of Water Pollution Control, Hangzhou 310058, China
| | - Liang Zhu
- Institute of Environment Pollution Control and Treatment, College of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China; Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety, Hangzhou 310058, China; Zhejiang Provincial Engineering Laboratory of Water Pollution Control, Hangzhou 310058, China; Innovation Center of Yangtze River Delta, Zhejiang University.
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10
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Estes Bright LM, Chug MK, Thompson S, Brooks M, Brisbois EJ, Handa H. Analysis of the broad-spectrum potential of nitric oxide for antibacterial activity against clinically isolated drug-resistant bacteria. J Biomed Mater Res B Appl Biomater 2024; 112:e35442. [PMID: 38923117 DOI: 10.1002/jbm.b.35442] [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: 02/13/2024] [Revised: 04/18/2024] [Accepted: 06/09/2024] [Indexed: 06/28/2024]
Abstract
The development of drug-resistant microorganisms is taking a heavy toll on the biomedical world. Clinical infections are costly and becoming increasingly dangerous as bacteria that once responded to standard antibiotic treatment are developing resistance mechanisms that require innovative treatment strategies. Nitric oxide (NO) is a gaseous molecule produced endogenously that has shown potent antibacterial capabilities in numerous research studies. Its multimechanistic antibacterial methods prevent the development of resistance and have shown potential as an alternative to antibiotics. However, there has yet to be a direct comparison study evaluating the antibacterial properties of NO against antibiotic susceptible and antibiotic-resistant clinically isolated bacterial strains. Herein, standardized lab and clinically isolated drug-resistant bacterial strains are compared side-by-side for growth and viability following treatment with NO released from S-nitrosoglutathione (GSNO), an NO donor molecule. Evaluation of growth kinetics revealed complete killing of E. coli lab and clinical strains at 17.5 mM GSNO, though 15 mM displayed >50% killing and significantly reduced metabolic activity, with greater dose dependence for membrane permeability. Clinical P. aeruginosa showed greater susceptibility to GSNO during growth curve studies, but metabolic activity and membrane permeability demonstrated similar effects for 12.5 mM GSNO treatment of lab and clinical strains. MRSA lab and clinical strains exhibited total killing at 17.5 mM treatment, though metabolic activity was decreased, and membrane permeation began at 12.5 mM for both strains. Lastly, both S. epidermidis strains were killed by 15 mM GSNO, with sensitivities in metabolic activity and membrane permeability at 12.5 mM GSNO. The mirrored antibacterial effects seen by the lab and clinical strains of two Gram-negative and two Gram-positive bacteria reveal the translational success of NO as an antibacterial therapy and potential alternative to standard antibiotic treatment.
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Affiliation(s)
- Lori M Estes Bright
- School of Chemical, Materials, and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia, USA
| | - Manjyot Kaur Chug
- School of Chemical, Materials, and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia, USA
| | - Stephen Thompson
- School of Chemical, Materials, and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia, USA
| | - Megan Brooks
- School of Chemical, Materials, and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia, USA
| | - Elizabeth J Brisbois
- School of Chemical, Materials, and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia, USA
| | - Hitesh Handa
- School of Chemical, Materials, and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia, USA
- Pharmaceutical and Biomedical Sciences Department, College of Pharmacy, University of Georgia, Athens, Georgia, USA
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11
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Dai E, Sheng Y, Gao Y. A Fast-Response, Phenanthroimidazole-Based Fluorescent Probe for Selective Detection of HClO. J Fluoresc 2024; 34:1551-1560. [PMID: 37542588 DOI: 10.1007/s10895-023-03376-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 07/27/2023] [Indexed: 08/07/2023]
Abstract
A new phenanthroimidazole-based fluorescence probe for selective detection of HClO was synthesized and characterized using 1HNMR, 13CNMR, IR, and HRMS. With benzenesulfonohydrazide as the identification group, the probe demonstrated a fast fluorescence response from yellow-green to blue when the HC = N double bond was oxidized and broken into an aldehyde group by HClO. The probe showed high selectivity and sensitivity towards HClO with approximately 4.5-fold fluorescence enhancement and has been successfully applied in the molecular logic gate, determination of HClO in environmental water samples, and portable HClO detection.
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Affiliation(s)
- Enhui Dai
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Yumiao Sheng
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Yunling Gao
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China.
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12
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Qiu J, Ahmad F, Ma J, Sun Y, Liu Y, Xiao Y, Xu L, Shu T, Zhang X. From synthesis to applications of biomolecule-protected luminescent gold nanoclusters. Anal Bioanal Chem 2024; 416:3923-3944. [PMID: 38705905 DOI: 10.1007/s00216-024-05303-y] [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: 02/23/2024] [Revised: 04/07/2024] [Accepted: 04/11/2024] [Indexed: 05/07/2024]
Abstract
Gold nanoclusters (AuNCs) are a class of novel luminescent nanomaterials that exhibit unique properties of ultra-small size, featuring strong anti-photo-bleaching ability, substantial Stokes shift, good biocompatibility, and low toxicity. Various biomolecules have been developed as templates or ligands to protect AuNCs with enhanced stability and luminescent properties for biomedical applications. In this review, the synthesis of AuNCs based on biomolecules including amino acids, peptides, proteins and DNA are summarized. Owing to the advantages of biomolecule-protected AuNCs, they have been employed extensively for diverse applications. The biological applications, particularly in bioimaging, biosensing, disease therapy and biocatalysis have been described in detail herein. Finally, current challenges and future potential prospects of bio-templated AuNCs in biological research are briefly discussed.
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Affiliation(s)
- Jiafeng Qiu
- Shenzhen Key Laboratory for Nano-Biosensing Technology, Research Center for Biosensor and Nanotheranostic, Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, China
- Marshall Laboratory of Biomedical Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Faisal Ahmad
- Shenzhen Key Laboratory for Nano-Biosensing Technology, Research Center for Biosensor and Nanotheranostic, Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, China
- Marshall Laboratory of Biomedical Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Jianxin Ma
- Shenzhen Key Laboratory for Nano-Biosensing Technology, Research Center for Biosensor and Nanotheranostic, Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, China
- Marshall Laboratory of Biomedical Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Yanping Sun
- Shenzhen Key Laboratory for Nano-Biosensing Technology, Research Center for Biosensor and Nanotheranostic, Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, China
- Marshall Laboratory of Biomedical Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Ying Liu
- Shenzhen Key Laboratory for Nano-Biosensing Technology, Research Center for Biosensor and Nanotheranostic, Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, China
- Marshall Laboratory of Biomedical Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Yelan Xiao
- Shenzhen Key Laboratory for Nano-Biosensing Technology, Research Center for Biosensor and Nanotheranostic, Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, China.
- Marshall Laboratory of Biomedical Engineering, Shenzhen University, Shenzhen, 518060, China.
| | - Long Xu
- Shenzhen Key Laboratory for Nano-Biosensing Technology, Research Center for Biosensor and Nanotheranostic, Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, China
- Marshall Laboratory of Biomedical Engineering, Shenzhen University, Shenzhen, 518060, China
- Department of Gastroenterology and Hepatology, Shenzhen University General Hospital, Shenzhen, China
| | - Tong Shu
- Shenzhen Key Laboratory for Nano-Biosensing Technology, Research Center for Biosensor and Nanotheranostic, Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, China.
- Marshall Laboratory of Biomedical Engineering, Shenzhen University, Shenzhen, 518060, China.
| | - Xueji Zhang
- Shenzhen Key Laboratory for Nano-Biosensing Technology, Research Center for Biosensor and Nanotheranostic, Guangdong Key Laboratory of Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, Shenzhen, 518060, China
- Marshall Laboratory of Biomedical Engineering, Shenzhen University, Shenzhen, 518060, China
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13
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Moon S, Lee KW, Park M, Moon J, Park SH, Kim S, Hwang J, Yoon JW, Jeon SM, Kim JS, Jeon YJ, Kweon DH. 3-Fucosyllactose-mediated modulation of immune response against virus infection. Int J Antimicrob Agents 2024; 64:107187. [PMID: 38697577 DOI: 10.1016/j.ijantimicag.2024.107187] [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: 11/06/2023] [Revised: 03/19/2024] [Accepted: 04/24/2024] [Indexed: 05/05/2024]
Abstract
Viral pathogens, particularly influenza and SARS-CoV-2, pose a significant global health challenge. Given the immunomodulatory properties of human milk oligosaccharides, in particular 2'-fucosyllactose and 3-fucosyllactose (3-FL), we investigated their dietary supplementation effects on antiviral responses in mouse models. This study revealed distinct immune modulations induced by 3-FL. RNA-sequencing data showed that 3-FL increased the expression of interferon receptors, such as Interferon Alpha and Beta Receptor (IFNAR) and Interferon Gamma Receptor (IFNGR), while simultaneously downregulating interferons and interferon-stimulated genes, an effect not observed with 2'-fucosyllactose supplementation. Such modulation enhanced antiviral responses in both cell culture and animal models while attenuating pre-emptive inflammatory responses. Nitric oxide concentrations in 3-FL-supplemented A549 cells and mouse lung tissues were elevated exclusively upon infection, reaching 5.8- and 1.9-fold increases over control groups, respectively. In addition, 3-FL promoted leukocyte infiltration into the site of infection upon viral challenge. 3-FL supplementation provided protective efficacy against lethal influenza challenge in mice. The demonstrated antiviral efficacy spanned multiple influenza strains and extended to SARS-CoV-2. In conclusion, 3-FL is a unique immunomodulator that helps protect the host from viral infection while suppressing inflammation prior to infection.
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Affiliation(s)
- Seokoh Moon
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Ki Wook Lee
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Myungseo Park
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Jeonghui Moon
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Sang Hee Park
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Soomin Kim
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Jaehyeon Hwang
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Republic of Korea
| | - Jong-Won Yoon
- Advanced Protein Technologies Corp., Suwon, Republic of Korea
| | - Seon-Min Jeon
- Advanced Protein Technologies Corp., Suwon, Republic of Korea
| | - Jun-Seob Kim
- Department of Nano-Bioengineering, Incheon National University, Incheon, Republic of Korea.
| | - Young-Jun Jeon
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Republic of Korea.
| | - Dae-Hyuk Kweon
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, Republic of Korea; Advanced Protein Technologies Corp., Suwon, Republic of Korea.
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14
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Zhou Y, He X, Tang J, Zhang D, Liu Y, Xue Y, Jiang N, Zhang J, Wang X. Total sputum nitrate/nitrite is associated with exacerbations and Pseudomonas aeruginosa colonisation in bronchiectasis. ERJ Open Res 2024; 10:01045-2023. [PMID: 39040581 PMCID: PMC11261385 DOI: 10.1183/23120541.01045-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 03/16/2024] [Indexed: 07/24/2024] Open
Abstract
Background Sputum nitrate/nitrite, which is the main component of reactive nitrogen species, is a potential biomarker of disease severity and progression in bronchiectasis. This study aimed to determine the association between nitrate/nitrite and exacerbations and airway microbiota in bronchiectasis. Methods We measured total nitrate/nitrite concentration in sputum samples collected from 85 patients with stable bronchiectasis, performed 16S ribosomal RNA sequencing of sputum samples and predicted the denitrification ability of airway microbiota using Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt). Relationships between sputum total nitrate/nitrite and disease severity, exacerbations and airway microbiota were examined. Results Higher total sputum nitrate/nitrite was associated with more severe bronchiectasis defined by E-FACED (exacerbation, forced expiratory volume in 1 s, age, chronic colonisation by Pseudomonas aeruginosa, radiological extension and dyspnoea) (p=0.003) or Bronchiectasis Severity Index (p=0.006) and more exacerbations in the prior 12 months (p=0.005). Moreover, total sputum nitrate/nitrite was significantly higher in patients with worse cough score (p=0.03), worse sputum purulence score (p=0.01) and worse Medical Research Council dyspnoea score (p=0.02). In addition, the total sputum nitrate/nitrite of the P. aeruginosa colonised (PA) group was higher than that of the non-P. aeruginosa colonised (NPA) group (p=0.04), and the relative abundance of P. aeruginosa was positively correlated with total nitrate/nitrite (r=0.337, p=0.002). Denitrification module (M00529) was also significantly enriched in the PA group compared to the NPA group through PICRUSt analyses. Using receiver-operating characteristic analysis, total nitrate/nitrite was associated with exacerbations during 1-year follow-up (area under the curve 0.741, p=0.014). Conclusions Sputum nitrate/nitrite is a biomarker of disease severity and associated with P. aeruginosa colonisation in bronchiectasis.
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Affiliation(s)
- Yaya Zhou
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Joint first authors
| | - Xinliang He
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Joint first authors
| | - Jian Tang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dongmei Zhang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yao Liu
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu'e Xue
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Nanchuan Jiang
- Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jianchu Zhang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Joint senior authors
| | - Xiaorong Wang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Joint senior authors
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15
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Vatankhah M, Panahizadeh R, Safari A, Ziyabakhsh A, Mohammadi-Ghalehbin B, Soozangar N, Jeddi F. The role of Nrf2 signaling in parasitic diseases and its therapeutic potential. Heliyon 2024; 10:e32459. [PMID: 38988513 PMCID: PMC11233909 DOI: 10.1016/j.heliyon.2024.e32459] [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: 10/17/2023] [Revised: 05/24/2024] [Accepted: 06/04/2024] [Indexed: 07/12/2024] Open
Abstract
In response to invading parasites, one of the principal arms of innate immunity is oxidative stress, caused by reactive oxygen species (ROS). However, oxidative stresses play dual functions in the disease, whereby free radicals promote pathogen removal, but they can also trigger inflammation, resulting in tissue injuries. A growing body of evidence has strongly supported the notion that nuclear factor erythroid 2-related factor 2 (NRF) signaling is one of the main antioxidant pathways to combat this oxidative burst against parasites. Given the important role of NRF2 in oxidative stress, in this review, we investigate the activation mechanism of the NRF2 antioxidant pathway in different parasitic diseases, such as malaria, leishmaniasis, trypanosomiasis, toxoplasmosis, schistosomiasis, entamoebiasis, and trichinosis.
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Affiliation(s)
- Mohammadamin Vatankhah
- Zoonoses Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
- Students Research Committee, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Reza Panahizadeh
- Zoonoses Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
- Students Research Committee, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Ali Safari
- Zoonoses Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Alireza Ziyabakhsh
- Zoonoses Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | | | - Narges Soozangar
- Zoonoses Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Farhad Jeddi
- Department of Genetics and Pathology, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
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16
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Riitho V, Connon R, Gwela A, Namusanje J, Nhema R, Siika A, Bwakura-Dangarembizi M, Musiime V, Berkley JA, Szubert AJ, Gibb DM, Walker AS, Klein N, Prendergast AJ. Biomarkers of mortality in adults and adolescents with advanced HIV in sub-Saharan Africa. Nat Commun 2024; 15:5492. [PMID: 38944653 PMCID: PMC11214617 DOI: 10.1038/s41467-024-49317-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 05/30/2024] [Indexed: 07/01/2024] Open
Abstract
One-third of people with HIV in sub-Saharan Africa start antiretroviral therapy (ART) with advanced disease. We investigated associations between immune biomarkers and mortality in participants with advanced HIV randomised to cotrimoxazole or enhanced antimicrobial prophylaxis in the Reduction of Early Mortality in HIV-Infected Adults and Children Starting Antiretroviral Therapy (REALITY) trial (ISRCTN43622374). Biomarkers were assayed using ELISA and Luminex. Associations between baseline values and all-cause 24-week mortality were analysed using Cox models, and for cause-specific mortality used Fine & Gray models, including prophylaxis randomisation, viral load, CD4, WHO stage, age, BMI, and site as covariates; and weighted according to inverse probability of selection into the substudy. Higher baseline CRP, IFN-γ, IL-6 and IP-10 were associated with higher all-cause mortality; and higher IL-23, IL-2 and RANTES with lower all-cause mortality. Associations varied by cause of death: tuberculosis-associated mortality was most strongly associated with higher CRP and sST2, and cryptococcosis-associated mortality with higher IL-4 and lower IL-8. Changes in I-FABP (p = 0.002), faecal alpha-1 antitrypsin (p = 0.01) and faecal myeloperoxidase (p = 0.005) between baseline and 4 weeks post-ART were greater in those receiving enhanced versus cotrimoxazole prophylaxis. Our findings highlight how the immune milieu shapes outcomes following ART initiation, and how adjunctive antimicrobials can modulate the gut environment in advanced HIV.
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Affiliation(s)
- Victor Riitho
- Blizard Institute, Queen Mary University of London, London, UK
- Center for Epidemiological Modelling and Analysis (CEMA), Institute of Tropical and Infectious Diseases (UNITID), University of Nairobi, Nairobi, Kenya
| | | | - Agnes Gwela
- KEMRI-Wellcome Trust Research Programme, Kilifi, Kenya
| | | | - Ruth Nhema
- University of Zimbabwe, Harare, Zimbabwe
| | | | | | - Victor Musiime
- Joint Clinical Research Centre, Kampala, Uganda
- Department of Paediatrics and Child Health, Makerere University, Kampala, Uganda
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17
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Tanca A, Palomba A, Fiorito G, Abbondio M, Pagnozzi D, Uzzau S. Metaproteomic portrait of the healthy human gut microbiota. NPJ Biofilms Microbiomes 2024; 10:54. [PMID: 38944645 PMCID: PMC11214629 DOI: 10.1038/s41522-024-00526-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 06/11/2024] [Indexed: 07/01/2024] Open
Abstract
Gut metaproteomics can provide direct evidence of microbial functions actively expressed in the colonic environments, contributing to clarify the role of the gut microbiota in human physiology. In this study, we re-analyzed 10 fecal metaproteomics datasets of healthy individuals from different continents and countries, with the aim of identifying stable and variable gut microbial functions and defining the contribution of specific bacterial taxa to the main metabolic pathways. The "core" metaproteome included 182 microbial functions and 83 pathways that were identified in all individuals analyzed. Several enzymes involved in glucose and pyruvate metabolism, along with glutamate dehydrogenase, acetate kinase, elongation factors G and Tu and DnaK, were the proteins with the lowest abundance variability in the cohorts under study. On the contrary, proteins involved in chemotaxis, response to stress and cell adhesion were among the most variable functions. Random-effect meta-analysis of correlation trends between taxa, functions and pathways revealed key ecological and molecular associations within the gut microbiota. The contribution of specific bacterial taxa to the main biological processes was also investigated, finding that Faecalibacterium is the most stable genus and the top contributor to anti-inflammatory butyrate production in the healthy gut microbiota. Active production of other mucosal immunomodulators facilitating host tolerance was observed, including Roseburia flagellin and lipopolysaccharide biosynthetic enzymes expressed by members of Bacteroidota. Our study provides a detailed picture of the healthy human gut microbiota, contributing to unveil its functional mechanisms and its relationship with nutrition, immunity, and environmental stressors.
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Affiliation(s)
- Alessandro Tanca
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Antonio Palomba
- Porto Conte Ricerche, Science and Technology Park of Sardinia, Tramariglio, Alghero, Italy
| | - Giovanni Fiorito
- Clinical Bioinformatic Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Marcello Abbondio
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
- Unit of Microbiology and Virology, University Hospital of Sassari, Sassari, Italy
| | - Daniela Pagnozzi
- Porto Conte Ricerche, Science and Technology Park of Sardinia, Tramariglio, Alghero, Italy
| | - Sergio Uzzau
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy.
- Unit of Microbiology and Virology, University Hospital of Sassari, Sassari, Italy.
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18
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Zhang Q, Jiang Y, Zhang X, Wang Y, Ju R, Wei G. Injectable and Near-Infrared Light-Controllable Fibrin Hydrogels with Antimicrobial and Immunomodulating Properties for Infected Wound Healing. Biomater Res 2024; 28:0019. [PMID: 38938648 PMCID: PMC11210386 DOI: 10.34133/bmr.0019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 03/14/2024] [Indexed: 06/29/2024] Open
Abstract
The management of infected wounds poses a significant challenge due to the growing issue of antibiotic resistance, underscoring the urgent necessity to innovate and implement alternative therapeutic strategies. These strategies should be capable of eliminating bacterial infections in infected wounds while circumventing the induction of multi-drug resistance. In the current study, we developed an easily prepared and injectable fibrin gel (FG) loaded with nanoparticles (NPs) that exhibit antibacterial and immunomodulatory properties to facilitate the healing of infected wounds. Initially, a novel type of NP was generated through the electrostatic interaction between the photothermal agent, mPEG-modified polydopamine (MPDA), and the nitric oxide (NO) donor, S-nitrosocysteamine (SNO). This interaction resulted in the formation of NPs referred to as SNO-loaded MPDA (SMPDA). Subsequently, the SMPDA was encapsulated into the FG using a double-barreled syringe, thereby producing the SMPDA-loaded FG (SMPDA/G). Experimental results revealed that SMPDA/G could effectively eliminate bacterial infections and alter the immune microenvironment. This efficacy is attributed to the synergistic combination of NO therapy and photothermal therapy, along with the role of SMPDA in facilitating M2 macrophage polarization within the gel. Accordingly, these findings suggest that the SMPDA/G holds substantial promise for clinical application in infected wound healing.
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Affiliation(s)
- Qing Zhang
- School of Life Science and Engineering,
Southwest Jiaotong University, Chengdu 610031, China
- Chengdu Women’s and Children’s Central Hospital, School of Medicine,
University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Yongxian Jiang
- Sichuan Provincial Maternity and Child Health Care Hospital, the Affiliated Women’s and Children’s Hospital of Chengdu Medical College, Chengdu 610041, China
| | - Xiaolong Zhang
- Chengdu Women’s and Children’s Central Hospital, School of Medicine,
University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Yi Wang
- School of Life Science and Engineering,
Southwest Jiaotong University, Chengdu 610031, China
| | - Rong Ju
- Chengdu Women’s and Children’s Central Hospital, School of Medicine,
University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Guoqing Wei
- Chengdu Women’s and Children’s Central Hospital, School of Medicine,
University of Electronic Science and Technology of China, Chengdu 611731, China
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19
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Chen S, Tong X, Huo Y, Liu S, Yin Y, Tan ML, Cai K, Ji W. Piezoelectric Biomaterials Inspired by Nature for Applications in Biomedicine and Nanotechnology. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2406192. [PMID: 39003609 DOI: 10.1002/adma.202406192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/10/2024] [Indexed: 07/15/2024]
Abstract
Bioelectricity provides electrostimulation to regulate cell/tissue behaviors and functions. In the human body, bioelectricity can be generated in electromechanically responsive tissues and organs, as well as biomolecular building blocks that exhibit piezoelectricity, with a phenomenon known as the piezoelectric effect. Inspired by natural bio-piezoelectric phenomenon, efforts have been devoted to exploiting high-performance synthetic piezoelectric biomaterials, including molecular materials, polymeric materials, ceramic materials, and composite materials. Notably, piezoelectric biomaterials polarize under mechanical strain and generate electrical potentials, which can be used to fabricate electronic devices. Herein, a review article is proposed to summarize the design and research progress of piezoelectric biomaterials and devices toward bionanotechnology. First, the functions of bioelectricity in regulating human electrophysiological activity from cellular to tissue level are introduced. Next, recent advances as well as structure-property relationship of various natural and synthetic piezoelectric biomaterials are provided in detail. In the following part, the applications of piezoelectric biomaterials in tissue engineering, drug delivery, biosensing, energy harvesting, and catalysis are systematically classified and discussed. Finally, the challenges and future prospects of piezoelectric biomaterials are presented. It is believed that this review will provide inspiration for the design and development of innovative piezoelectric biomaterials in the fields of biomedicine and nanotechnology.
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Affiliation(s)
- Siying Chen
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Xiaoyu Tong
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Yehong Huo
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Shuaijie Liu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Yuanyuan Yin
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Stomatological Hospital of Chongqing Medical University, Chongqing, 401147, China
| | - Mei-Ling Tan
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Wei Ji
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, China
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20
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Kaur J, Verma H, Kaur J, Lata P, Dhingra GG, Lal R. In Silico Analysis of the Phylogenetic and Physiological Characteristics of Sphingobium indicum B90A: A Hexachlorocyclohexane-Degrading Bacterium. Curr Microbiol 2024; 81:233. [PMID: 38904756 DOI: 10.1007/s00284-024-03762-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Accepted: 05/27/2024] [Indexed: 06/22/2024]
Abstract
The study focuses on the in silico genomic characterization of Sphingobium indicum B90A, revealing a wealth of genes involved in stress response, carbon monoxide oxidation, β-carotene biosynthesis, heavy metal resistance, and aromatic compound degradation, suggesting its potential as a bioremediation agent. Furthermore, genomic adaptations among nine Sphingomonad strains were explored, highlighting shared core genes via pangenome analysis, including those related to the shikimate pathway and heavy metal resistance. The majority of genes associated with aromatic compound degradation, heavy metal resistance, and stress response were found within genomic islands across all strains. Sphingobium indicum UT26S exhibited the highest number of genomic islands, while Sphingopyxis alaskensis RB2256 had the maximum fraction of its genome covered by genomic islands. The distribution of lin genes varied among the strains, indicating diverse genetic responses to environmental pressures. Additionally, in silico evidence of horizontal gene transfer (HGT) between plasmids pSRL3 and pISP3 of the Sphingobium and Sphingomonas genera, respectively, has been provided. The manuscript offers novel insights into strain B90A, highlighting its role in horizontal gene transfer and refining evolutionary relationships among Sphingomonad strains. The discovery of stress response genes and the czcABCD operon emphasizes the potential of Sphingomonads in consortia development, supported by genomic island analysis.
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Affiliation(s)
- Jasvinder Kaur
- Department of Zoology, Gargi College, Siri Fort Road, New Delhi, 110049, India.
| | - Helianthous Verma
- Department of Zoology, Ramjas College, University of Delhi, New Delhi, 110007, India
| | - Jaspreet Kaur
- Department of Zoology, Maitreyi College, University of Delhi, New Delhi, 110021, India
| | - Pushp Lata
- Department of Zoology, University of Delhi, New Delhi, 110007, India
| | - Gauri Garg Dhingra
- Department of Zoology, Kirori Mal College, University of Delhi, New Delhi, 110007, India
| | - Rup Lal
- Acharya Narendra Dev College, University of Delhi, New Delhi, 110019, India.
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21
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Assarsson M, Söderman J, Seifert O. Significant Correlation Between Cutaneous Abundance of Streptococcus and Psoriasis Severity in Patients with FBXL19 Gene Variants. Acta Derm Venereol 2024; 104:adv34892. [PMID: 38898675 PMCID: PMC11210493 DOI: 10.2340/actadv.v104.34892] [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: 12/13/2023] [Accepted: 05/30/2024] [Indexed: 06/21/2024] Open
Abstract
Psoriasis results from both genetic predisposition and environmental triggers, such as Streptococcal infections. This study aimed to explore the correlation between the abundance of the Streptococcus genus on the skin and psoriasis severity in individuals carrying specific psoriasis-associated genetic variants. Studying 39 chronic plaque psoriasis patients, the elbow skin microbiome and 49 psoriasis-related single nucleotide polymorphisms (SNPs) were analysed using a MiSeq instrument for 16S rDNA sequencing, and CLC Genomic Workbench for processing and analysis. Through multivariate linear regression analysis, a positive correlation was found between Streptococcus genus abundance and psoriasis severity in patients with certain FBXL19 gene-related heterozygous SNPs (rs12924903, rs10782001, rs12445568). Conversely, a negative association was observed in patients with homozygous genotypes. Moreover, we identified an association between Streptococcus abundance and psoriasis severity in patients with genetic variants related to IL-22, ERAP1, NOS2, and ILF3. This is the first study highlighting a positive association between Streptococcus skin colonization and psoriasis severity in patients with heterozygous genotypes within the FBXL19 gene region. FXBL19 targets the IL-33/IL1RL1 axis, crucial in infectious diseases and innate immunity promotion. These novel results suggests an intricate interaction among host genetics, Streptococcus skin colonization, and psoriasis inflammation, offering potential avenues for novel treatment approaches.
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Affiliation(s)
- Malin Assarsson
- Department of Biomedical and Clinical Sciences, Faculty of Health Sciences, Linköping University, Linköping, Sweden; Division of Dermatology and Venereology, Region Jönköping County, Jönköping, Sweden.
| | - Jan Söderman
- Department of Biomedical and Clinical Sciences, Faculty of Health Sciences, Linköping University, Linköping, Sweden; Laboratory Medicine, Region Jönköping County, Jönköping, Sweden
| | - Oliver Seifert
- Department of Biomedical and Clinical Sciences, Faculty of Health Sciences, Linköping University, Linköping, Sweden; Division of Dermatology and Venereology, Region Jönköping County, Jönköping, Sweden
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22
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Martins T, Parisi C, Guerra Pinto J, Ribeiro Brambilla IDP, Malanga M, Ferreira-Strixino J, Sortino S. Stepwise Nitric Oxide Release and Antibacterial Activity of a Nitric Oxide Photodonor Hosted within Cyclodextrin Branched Polymer Nanocarriers. ACS Med Chem Lett 2024; 15:857-863. [PMID: 38894929 PMCID: PMC11181500 DOI: 10.1021/acsmedchemlett.4c00061] [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: 02/03/2024] [Revised: 04/16/2024] [Accepted: 04/28/2024] [Indexed: 06/21/2024] Open
Abstract
A hydrophobic nitric oxide (NO) photodonor integrating both nitroso and nitro functionalities within its chromophoric skeleton has been synthesized. Excitation of this compound with blue light triggers the release of two NO molecules from the nitroso and the nitro functionalities via a stepwise mechanism. Encapsulation of the NO photodonor within biocompatible neutral, cationic, and anionic β-cyclodextrin branched polymers as suitable carriers leads to supramolecular nanoassemblies, which exhibit the same nature of the photochemical processes but NO photorelease performances enhanced by about 1 order of magnitude when compared with the free guest. Antibacterial tests carried out with methicillin-resistant Staphylococcus aureus and Acinetobacter baumannii demonstrate an effective antibacterial activity exclusively under light activation and point out a differentiated role of the polymeric nanocarriers in determining the outcome of the antibacterial photodynamic action.
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Affiliation(s)
- Tassia
J. Martins
- PhotoChemLab,
Department of Drug Sciences, University
of Catania, I-95125 Catania, Italy
| | - Cristina Parisi
- PhotoChemLab,
Department of Drug Sciences, University
of Catania, I-95125 Catania, Italy
| | - Juliana Guerra Pinto
- Laboratory
of Photobiology Applied to Health, Research and Development Institute, University of Vale do Paraíba, Urbanova I-2911, Brazil
| | | | | | - Juliana Ferreira-Strixino
- Laboratory
of Photobiology Applied to Health, Research and Development Institute, University of Vale do Paraíba, Urbanova I-2911, Brazil
| | - Salvatore Sortino
- PhotoChemLab,
Department of Drug Sciences, University
of Catania, I-95125 Catania, Italy
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23
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Abdelgalil AI, Yassin AM, Khattab MS, Abdelnaby EA, Marouf SA, Farghali HA, Emam IA. Platelet-rich plasma attenuates the UPEC-induced cystitis via inhibiting MMP-2,9 activities and downregulation of NGF and VEGF in Canis Lupus Familiaris model. Sci Rep 2024; 14:13612. [PMID: 38871929 DOI: 10.1038/s41598-024-63760-y] [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: 01/07/2024] [Accepted: 05/31/2024] [Indexed: 06/15/2024] Open
Abstract
One of the most prevalent disorders of the urinary system is urinary tract infection, which is mostly brought on by uropathogenic Escherichia coli (UPEC). The objective of this study was to evaluate the regenerative therapeutic and antibacterial efficacy of PRP for induced bacterial cystitis in dogs in comparison to conventional antibiotics. 25 healthy male mongrel dogs were divided into 5 groups (n = 5). Control negative group that received neither induced infection nor treatments. 20 dogs were randomized into 4 groups after two weeks of induction of UPEC cystitis into; Group 1 (control positive; G1) received weekly intravesicular instillation of sodium chloride 0.9%. Group 2 (syst/PRP; G2), treated with both systemic intramuscular antibiotic and weekly intravesicular instillation of PRP; Group 3 (PRP; G3), treated with weekly intravesicular instillation of PRP, and Group 4 (syst; G4) treated with an intramuscular systemic antibiotic. Animals were subjected to weekly clinical, ultrasonographic evaluation, urinary microbiological analysis, and redox status biomarkers estimation. Urinary matrix metalloproteinases (MMP-2, MMP-9) and urinary gene expression for platelet-derived growth factor -B (PDGF-B), nerve growth factor (NGF), and vascular endothelial growth factor (VEGF) were measured. At the end of the study, dogs were euthanized, and the bladder tissues were examined macroscopically, histologically, and immunohistochemically for NF-κB P65 and Cox-2. The PRP-treated group showed significant improvement for all the clinical, Doppler parameters, and the urinary redox status (p < 0.05). The urinary MMPs activity was significantly decreased in the PRP-treated group and the expression level of urinary NGF and VEGF were downregulated while PDGFB was significantly upregulated (p < 0.05). Meanwhile, the urinary viable cell count was significantly reduced in all treatments (P < 0.05). Gross examination of bladder tissue showed marked improvement for the PRP-treated group, expressed in the histopathological findings. Immunohistochemical analysis revealed a marked increase in Cox-2 and NF-κB P65 in the PRP-treated group (P < 0.05). autologous CaCl2-activated PRP was able to overcome the bacterial infection, generating an inflammatory environment to overcome the old one and initiate tissue healing. Hence, PRP is a promising alternative therapeutic for UPEC cystitis instead of conventional antibiotics.
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Affiliation(s)
- Ahmed I Abdelgalil
- Department of Surgery, Anesthesiology, and Radiology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Aya M Yassin
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
| | - Marwa S Khattab
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Elshymaa A Abdelnaby
- Theriogenology Department, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Sherif A Marouf
- Department of Microbiology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Haithem A Farghali
- Department of Surgery, Anesthesiology, and Radiology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Ibrahim A Emam
- Department of Surgery, Anesthesiology, and Radiology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
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24
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Svenningsen SL. Tactical terminase: How a Salmonella prophage navigates oxidative stress. Cell Host Microbe 2024; 32:781-783. [PMID: 38870894 DOI: 10.1016/j.chom.2024.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 06/15/2024]
Abstract
Stress-induced prophages commonly "jump ship" by inducing lysis via the host SOS response. In a recent work, Uppalapati et al. reports an alternate, stress-selective strategy. Instead of promoting lysis, the Salmonella Gifsy-1 prophage arrests growth specifically when the SOS response coincides with oxidative stress.
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25
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Minias P, Pap PL, Vincze O, Vágási CI. Correlated evolution of oxidative physiology and MHC-based immunosurveillance in birds. Proc Biol Sci 2024; 291:20240686. [PMID: 38889785 DOI: 10.1098/rspb.2024.0686] [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: 01/12/2024] [Accepted: 05/06/2024] [Indexed: 06/20/2024] Open
Abstract
Maintenance and activation of the immune system incur costs, not only in terms of substrates and energy but also via collateral oxidative damage to host cells or tissues during immune response. So far, associations between immune function and oxidative damage have been primarily investigated at intra-specific scales. Here, we hypothesized that pathogen-driven selection should favour the evolution of effective immunosurveillance mechanisms (e.g. major histocompatibility complex, MHC) and antioxidant defences to mitigate oxidative damage resulting from immune function. Using phylogenetically informed comparative approaches, we provided evidence for the correlated evolution of host oxidative physiology and MHC-based immunosurveillance in birds. Species selected for more robust MHC-based immunosurveillance (higher gene copy numbers and allele diversity) showed stronger antioxidant defences, although selection for MHC diversity still showed a positive evolutionary association with oxidative damage to lipids. Our results indicate that historical pathogen-driven selection for highly duplicated and diverse MHC could have promoted the evolution of efficient antioxidant mechanisms, but these evolutionary solutions may be insufficient to keep oxidative stress at bounds. Although the precise nature of mechanistic links between the MHC and oxidative stress remains unclear, our study suggests that a general evolutionary investment in immune function may require co-adaptations at the level of host oxidative metabolism.
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Affiliation(s)
- Piotr Minias
- Department of Biodiversity Studies and Bioeducation, University of Lodz, Faculty of Biology and Environmental Protection, Banacha 1/3, 90-237 Lodz, Poland
| | - Péter L Pap
- Evolutionary Ecology Group, Hungarian Department of Biology and Ecology, Babeş-Bolyai University, Cluj-Napoca, Romania
| | - Orsolya Vincze
- Evolutionary Ecology Group, Hungarian Department of Biology and Ecology, Babeş-Bolyai University, Cluj-Napoca, Romania
- Wetland Ecology Research Group, HUN-REN Centre for Ecological Research, Institute of Aquatic Ecology, Debrecen, Hungary
- ImmunoConcEpT, University of Bordeaux, CNRS UMR 5164, Bordeaux, France
| | - Csongor I Vágási
- Evolutionary Ecology Group, Hungarian Department of Biology and Ecology, Babeş-Bolyai University, Cluj-Napoca, Romania
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26
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Paschoalini AL, Ribeiro YM, Thuller B, Soares CLG, Rizzo E, Bazzoli N. Histopathology and changes in the expression of metallothioneins, heat shock proteins and inducible nitric oxide synthase in Prochilodus costatus from a neotropical river contaminated by heavy metals. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 108:104473. [PMID: 38759846 DOI: 10.1016/j.etap.2024.104473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 05/15/2024] [Indexed: 05/19/2024]
Abstract
The most recent dam rupture in Brazil released tons of mining tailings into the upper course of the Paraopeba River, affecting this river in an unprecedented way. The present study aimed to evaluate the influence of heavy metals on Prochilodus costatus, an important commercial species in Brazil, four years after the dam colapse. To this end, biomarkers of heavy metals, oxidative stress, and environmental stress were analyzed, and histological analyses of target organs were performed. The results demonstrated critical contamination of fish from the Paraopeba River. Increased expression of Metallothioneins - MTs, Heat Shock Protein - HSP70, and inducible nitric oxide synthase - iNOS, as well as greater rates of histological changes in the liver, spleen, and gonads, were observed in P. costatus. These findings demonstrate that, despite past contamination, the metals present in mining tailings have significantly increased the contamination of the Paraopeba River basin.
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Affiliation(s)
- Alessandro Loureiro Paschoalini
- Programa de Pós-graduação em Biologia de Vertebrados, Pontifícia Universidade Católica de Minas Gerais, PUC Minas, Belo Horizonte, Minas Gerais 30535-610, Brazil.
| | - Yves Moreira Ribeiro
- Laboratório de Ictiohistologia, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, Minas Gerais 30161-970, Brazil
| | - Breno Thuller
- Programa de Pós-graduação em Biologia de Vertebrados, Pontifícia Universidade Católica de Minas Gerais, PUC Minas, Belo Horizonte, Minas Gerais 30535-610, Brazil
| | - Camila Leandro Gomes Soares
- Programa de Pós-graduação em Biologia de Vertebrados, Pontifícia Universidade Católica de Minas Gerais, PUC Minas, Belo Horizonte, Minas Gerais 30535-610, Brazil
| | - Elizete Rizzo
- Laboratório de Ictiohistologia, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, Minas Gerais 30161-970, Brazil
| | - Nilo Bazzoli
- Programa de Pós-graduação em Biologia de Vertebrados, Pontifícia Universidade Católica de Minas Gerais, PUC Minas, Belo Horizonte, Minas Gerais 30535-610, Brazil
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27
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Tran N, Mills EL. Redox regulation of macrophages. Redox Biol 2024; 72:103123. [PMID: 38615489 PMCID: PMC11026845 DOI: 10.1016/j.redox.2024.103123] [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: 01/22/2024] [Revised: 02/26/2024] [Accepted: 03/11/2024] [Indexed: 04/16/2024] Open
Abstract
Redox signaling, a mode of signal transduction that involves the transfer of electrons from a nucleophilic to electrophilic molecule, has emerged as an essential regulator of inflammatory macrophages. Redox reactions are driven by reactive oxygen/nitrogen species (ROS and RNS) and redox-sensitive metabolites such as fumarate and itaconate, which can post-translationally modify specific cysteine residues in target proteins. In the past decade our understanding of how ROS, RNS, and redox-sensitive metabolites control macrophage function has expanded dramatically. In this review, we discuss the latest evidence of how ROS, RNS, and metabolites regulate macrophage function and how this is dysregulated with disease. We highlight the key tools to assess redox signaling and important questions that remain.
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Affiliation(s)
- Nhien Tran
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA, USA; Department of Immunology, Harvard Medical School, Boston, MA, USA
| | - Evanna L Mills
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA, USA; Department of Immunology, Harvard Medical School, Boston, MA, USA.
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28
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Yang S, Bai Y, Tao J, Tu C, Chen B, Huang X, Zhang L, Liu L, Li L, Qin Z. Exploration of the immune response of grass carp (Ctenopharyngodon idellus) erythrocytes during bacterial infection. FISH & SHELLFISH IMMUNOLOGY 2024; 149:109526. [PMID: 38554743 DOI: 10.1016/j.fsi.2024.109526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/29/2024] [Accepted: 03/27/2024] [Indexed: 04/02/2024]
Abstract
In teleost blood, red blood cells (RBCs) are the most common type of cell, and they differ from mammalian RBCs in having a nucleus and other organelles. As nucleated cells, teleost RBCs contribute to the immune response against pathogens, but their antibacterial mechanism remains unclear. Here, we utilized RNA-Seq to analyze gene expression patterns of grass carp (Ctenopharyngodon idellus) RBCs (GcRBCs) stimulated by Aeromonas hydrophila, Escherichia coli, and Staphylococcus aureus. Our transcriptomic data showed that bacterial stimulation generated many differentially expressed genes (DEGs). Furthermore, several inflammatory pathways responded to bacterial activation, and the TLR, IL-17, and tumor necrosis factor (TNF) signaling pathways were significantly activated based on Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis. Furthermore, the findings of qRT-PCR showed markedly elevated expression of various cytokines, including IL-1β, IL4, IL6, IL8, IL12, and TNFα, in GcRBCs after incubation with bacteria. Reactive oxygen species (ROS) production in GcRBCs was markedly increased after the cells were stimulated with the three bacteria, and the expression of superoxide dismutase, glutathione peroxidase, and antioxidant enzymes, including catalase, was altered. Flow cytometry analysis showed that the apoptosis rate of GcRBCs was enhanced after stimulation with the three bacteria for different times. In summary, our findings reveal that bacterial stimulation activates the immune response of GcRBCs by regulating ROS release, cytokine expression, and the antioxidant system, leading to apoptosis of GcRBCs.
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Affiliation(s)
- Shiyi Yang
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong Province, 510222, China
| | - Yanhan Bai
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong Province, 510222, China
| | - Junjie Tao
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong Province, 510222, China
| | - Chengming Tu
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong Province, 510222, China
| | - Bing Chen
- Laboratory of Animal Nutrition and Feed Science in South China, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China.
| | - Xiaoman Huang
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong Province, 510222, China
| | - Linpeng Zhang
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong Province, 510222, China
| | - Lihan Liu
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong Province, 510222, China
| | - Lin Li
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong Province, 510222, China.
| | - Zhendong Qin
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong Province, 510222, China.
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29
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Awala SI, Gwak JH, Kim Y, Jung MY, Dunfield PF, Wagner M, Rhee SK. Nitrous oxide respiration in acidophilic methanotrophs. Nat Commun 2024; 15:4226. [PMID: 38762502 PMCID: PMC11102522 DOI: 10.1038/s41467-024-48161-z] [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: 01/03/2024] [Accepted: 04/22/2024] [Indexed: 05/20/2024] Open
Abstract
Aerobic methanotrophic bacteria are considered strict aerobes but are often highly abundant in hypoxic and even anoxic environments. Despite possessing denitrification genes, it remains to be verified whether denitrification contributes to their growth. Here, we show that acidophilic methanotrophs can respire nitrous oxide (N2O) and grow anaerobically on diverse non-methane substrates, including methanol, C-C substrates, and hydrogen. We study two strains that possess N2O reductase genes: Methylocella tundrae T4 and Methylacidiphilum caldifontis IT6. We show that N2O respiration supports growth of Methylacidiphilum caldifontis at an extremely acidic pH of 2.0, exceeding the known physiological pH limits for microbial N2O consumption. Methylocella tundrae simultaneously consumes N2O and CH4 in suboxic conditions, indicating robustness of its N2O reductase activity in the presence of O2. Furthermore, in O2-limiting conditions, the amount of CH4 oxidized per O2 reduced increases when N2O is added, indicating that Methylocella tundrae can direct more O2 towards methane monooxygenase. Thus, our results demonstrate that some methanotrophs can respire N2O independently or simultaneously with O2, which may facilitate their growth and survival in dynamic environments. Such metabolic capability enables these bacteria to simultaneously reduce the release of the key greenhouse gases CO2, CH4, and N2O.
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Affiliation(s)
- Samuel Imisi Awala
- Department of Biological Sciences and Biotechnology, Chungbuk National University, 1 Chungdae-ro, Seowon-Gu, Cheongju, 28644, Republic of Korea
- Center for Ecology and Environmental Toxicology, Chungbuk National University, 1 Chungdae-Ro, Seowon-Gu, Cheongju, 28644, South Korea
| | - Joo-Han Gwak
- Department of Biological Sciences and Biotechnology, Chungbuk National University, 1 Chungdae-ro, Seowon-Gu, Cheongju, 28644, Republic of Korea
| | - Yongman Kim
- Department of Biological Sciences and Biotechnology, Chungbuk National University, 1 Chungdae-ro, Seowon-Gu, Cheongju, 28644, Republic of Korea
| | - Man-Young Jung
- Interdisciplinary Graduate Programme in Advance Convergence Technology and Science, Jeju National University, Jeju, Republic of Korea
- Department of Science Education, Jeju National University, Jeju, Republic of Korea
- Jeju Microbiome Center, Jeju National University, Jeju, Republic of Korea
| | - Peter F Dunfield
- Department of Biological Sciences, University of Calgary, 2500 University Dr. NW, Calgary, AB, T2N 1N4, Canada
| | - Michael Wagner
- Division of Microbial Ecology, Department of Microbiology and Ecosystem Science, Centre for Microbiology and Environmental Systems Science, University of Vienna, Althanstrasse 14, A-1090, Vienna, Austria
- Department of Chemistry and Bioscience, Center for Microbial Communities, Aalborg University, Fredrik Bajers Vej 7H, 9220, Aalborg, Denmark
| | - Sung-Keun Rhee
- Department of Biological Sciences and Biotechnology, Chungbuk National University, 1 Chungdae-ro, Seowon-Gu, Cheongju, 28644, Republic of Korea.
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30
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Boeder AM, Spiller F, Carlstrom M, Izídio GS. Enterococcus faecalis: implications for host health. World J Microbiol Biotechnol 2024; 40:190. [PMID: 38702495 DOI: 10.1007/s11274-024-04007-w] [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: 03/09/2024] [Accepted: 04/26/2024] [Indexed: 05/06/2024]
Abstract
The microbiota represents a crucial area of research in maintaining human health due to its potential for uncovering novel biomarkers, therapies, and molecular mechanisms relevant to population identification and experimental model characterization. Among these microorganisms, Enterococcus faecalis, a Gram-positive bacterium found in the gastrointestinal tract of humans and animals, holds particular significance. Strains of this bacterial species have sparked considerable debate in the literature due to their dual nature; they can either be utilized as probiotics in the food industry or demonstrate resistance to antibiotics, potentially leading to severe illness, disability, and death. Given the diverse characteristics of Enterococcus faecalis strains, this review aims to provide a comprehensive understanding of their impact on various systems within the host, including the immunological, cardiovascular, metabolic, and nervous systems. Furthermore, we summarize the bacterium-host interaction characteristics and molecular effects to highlight their targets, features, and overall impact on microbial communities and host health.
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Affiliation(s)
- Ariela Maína Boeder
- Department of Pharmacology, Federal University of Santa Catarina, Florianópolis, Brazil
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Fernando Spiller
- Department of Pharmacology, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Mattias Carlstrom
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Geison Souza Izídio
- Department of Pharmacology, Federal University of Santa Catarina, Florianópolis, Brazil.
- Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, Florianópolis, Brazil.
- Department of Psychiatry and Legal Medicine, Autonomous University of Barcelona, Barcelona, Spain.
- Laboratório de Genética do Comportamento, Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Departamento de Biologia Celular, Embriologia e Genética, Florianopolis, SC, Brazil.
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31
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Zhang W, Lu H, Zhang W, Hu J, Zeng Y, Hu H, Shi L, Xia J, Xu F. Inflammatory Microenvironment-Responsive Hydrogels Enclosed with Quorum Sensing Inhibitor for Treating Post-Traumatic Osteomyelitis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307969. [PMID: 38482752 PMCID: PMC11132068 DOI: 10.1002/advs.202307969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 01/22/2024] [Indexed: 05/29/2024]
Abstract
Non-antibiotic strategies are desperately needed to treat post-traumatic osteomyelitis (PTO) due to the emergence of superbugs, complex inflammatory microenvironments, and greatly enriched biofilms. Previously, growing evidence indicated that quorum sensing (QS), a chemical communication signal among bacterial cells, can accelerate resistance under evolutionary pressure. This study aims to develop a medical dressing to treat PTO by inhibiting QS and regulating the inflammatory microenvironment, which includes severe oxidative stress and acid abscesses, through a reactive oxygen species (ROS)-responsive bond between N1- (4-borobenzoyl)-N3-(4-borobenzoyl)-the N1, the N1, N3, N3-tetramethylpropane-1,3-diamine (TSPBA) and polyvinyl alcohol (PVA), and the amino side chain of hyperbranched polylysine (HBPL). Physically enclosed QS inhibitors subsequently exerted the antibacterial effects. This hydrogel can scavenge hydrogen peroxide (H2O2), superoxide anion free radical (·O2 -), hydroxyl radicals (·OH) and 2,2-di(4-tert-octylphenyl)-1-picryl-hydrazyl (DPPH) to reduce oxidative stress and inhibit "bacteria-to-bacteria communication", thus clearing planktonic bacteria and biofilms, accelerating bacterial plasmolysis, reducing bacterial virulence and interfering with membrane transport. After in vivo treatment with hydrogel, nearly all bacteria are eliminated, inflammation is effectively inhibited, and osteogenesis and bone repair are promoted to facilitate recovery from PTO. The work demonstrates the clinical translational potential of the hydrogel in the treatment of drug-resistant bacteria induced PTO.
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Affiliation(s)
- Wenting Zhang
- Department of Infectious DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
- Key Laboratory of Multiple Organ Failure (Zhejiang University), Ministry of EducationHangzhou310053China
- Research Center for Life Science and Human HealthBinjiang Institute of Zhejiang UniversityHangzhou310053China
| | - Huidan Lu
- Department of Infectious DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
- Key Laboratory of Multiple Organ Failure (Zhejiang University), Ministry of EducationHangzhou310053China
- Research Center for Life Science and Human HealthBinjiang Institute of Zhejiang UniversityHangzhou310053China
| | - Wanying Zhang
- Department of Infectious DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
- Key Laboratory of Multiple Organ Failure (Zhejiang University), Ministry of EducationHangzhou310053China
- Research Center for Life Science and Human HealthBinjiang Institute of Zhejiang UniversityHangzhou310053China
| | - Jiahao Hu
- Department of General SurgerySir Run‐Run Shaw HospitalZhejiang University School of MedicineHangzhouZhejiang310016China
| | - Yifei Zeng
- Department of Infectious DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
- Key Laboratory of Multiple Organ Failure (Zhejiang University), Ministry of EducationHangzhou310053China
- Research Center for Life Science and Human HealthBinjiang Institute of Zhejiang UniversityHangzhou310053China
| | - Huiqun Hu
- Department of Infectious DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
- Key Laboratory of Multiple Organ Failure (Zhejiang University), Ministry of EducationHangzhou310053China
- Research Center for Life Science and Human HealthBinjiang Institute of Zhejiang UniversityHangzhou310053China
| | - Liyun Shi
- Institute of Translational MedicineZhejiang Shuren UniversityHangzhouZhejiang310015China
| | - Jingyan Xia
- Department of Radiation TherapyThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
| | - Feng Xu
- Department of Infectious DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
- Key Laboratory of Multiple Organ Failure (Zhejiang University), Ministry of EducationHangzhou310053China
- Research Center for Life Science and Human HealthBinjiang Institute of Zhejiang UniversityHangzhou310053China
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32
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Melkikh AV. Unsolved morphogenesis problems and the hidden order. Biosystems 2024; 239:105218. [PMID: 38653448 DOI: 10.1016/j.biosystems.2024.105218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 04/18/2024] [Accepted: 04/20/2024] [Indexed: 04/25/2024]
Abstract
In this work, the morphogenesis mechanisms are considered from the complexity perspective. It is shown that both morphogenesis and the functioning of organs should be unstable in the case of short-range interaction potentials. The repeatability of forms during evolution is a strong argument for its directionality. The formation of organs during evolution can occur only in the presence of a priori information about the structure of such an organ. The focus of the discussion is not merely on constraining potential possibilities but on the concept of directed evolution itself. A morphogenesis model was constructed based on nontrivial quantum effects. These interaction effects between biologically important molecules ensure the accurate synthesis of cells, tissues, and organs.
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Affiliation(s)
- A V Melkikh
- Ural Federal University, Yekaterinburg, Russia.
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33
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Uppalapati S, Kant S, Liu L, Kim JS, Orlicky D, McClelland M, Vazquez-Torres A. Prophage terminase with tRNase activity sensitizes Salmonella enterica to oxidative stress. Science 2024; 384:100-105. [PMID: 38574144 DOI: 10.1126/science.adl3222] [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: 10/11/2023] [Accepted: 02/28/2024] [Indexed: 04/06/2024]
Abstract
Phage viruses shape the evolution and virulence of their bacterial hosts. The Salmonella enterica genome encodes several stress-inducible prophages. The Gifsy-1 prophage terminase protein, whose canonical function is to process phage DNA for packaging in the virus head, unexpectedly acts as a transfer ribonuclease (tRNase) under oxidative stress, cleaving the anticodon loop of tRNALeu. The ensuing RNA fragmentation compromises bacterial translation, intracellular survival, and recovery from oxidative stress in the vertebrate host. S. enterica adapts to this transfer RNA (tRNA) fragmentation by transcribing the RNA repair Rtc system. The counterintuitive translational arrest provided by tRNA cleavage may subvert prophage mobilization and give the host an opportunity for repair as a way of maintaining bacterial genome integrity and ultimately survival in animals.
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Affiliation(s)
- Siva Uppalapati
- University of Colorado School of Medicine, Department of Immunology and Microbiology, Aurora, CO, USA
| | - Sashi Kant
- University of Colorado School of Medicine, Department of Immunology and Microbiology, Aurora, CO, USA
| | - Lin Liu
- University of Colorado School of Medicine, Department of Immunology and Microbiology, Aurora, CO, USA
| | - Ju-Sim Kim
- University of Colorado School of Medicine, Department of Immunology and Microbiology, Aurora, CO, USA
| | - David Orlicky
- University of Colorado School of Medicine, Department of Pathology, Aurora, CO, USA
| | - Michael McClelland
- Department of Microbiology and Molecular Genetics, University of California Irvine School of Medicine, Irvine, CA, USA
| | - Andres Vazquez-Torres
- University of Colorado School of Medicine, Department of Immunology and Microbiology, Aurora, CO, USA
- Veterans Affairs Eastern Colorado Health Care System, Denver, CO, USA
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34
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Qi YT, Zhang FL, Tian SY, Wu HQ, Zhao Y, Zhang XW, Liu YL, Fu P, Amatore C, Huang WH. Nanosensor detection of reactive oxygen and nitrogen species leakage in frustrated phagocytosis of nanofibres. NATURE NANOTECHNOLOGY 2024; 19:524-533. [PMID: 38172432 DOI: 10.1038/s41565-023-01575-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 11/13/2023] [Indexed: 01/05/2024]
Abstract
Exposure to widely used inert fibrous nanomaterials (for example, glass fibres or carbon nanotubes) may result in asbestos-like lung pathologies, becoming an important environmental and health concern. However, the origin of the pathogenesis of such fibres has not yet been clearly established. Here we report an electrochemical nanosensor that is used to monitor and quantitatively characterize the flux and dynamics of reactive species release during the frustrated phagocytosis of glass nanofibres by single macrophages. We show the existence of an intense prolonged release of reactive oxygen and nitrogen species by single macrophages near their phagocytic cups. This continued massive leakage of reactive oxygen and nitrogen species damages peripheral cells and eventually translates into chronic inflammation and lung injury, as seen during in vitro co-culture and in vivo experiments.
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Affiliation(s)
- Yu-Ting Qi
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, People's Republic of China
| | - Fu-Li Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, People's Republic of China
| | - Si-Yu Tian
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, People's Republic of China
| | - Hui-Qian Wu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, People's Republic of China
| | - Yi Zhao
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, People's Republic of China
| | - Xin-Wei Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, People's Republic of China
| | - Yan-Ling Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, People's Republic of China
| | - Pingqing Fu
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin, People's Republic of China
| | - Christian Amatore
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, People's Republic of China.
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL Research University, Sorbonne University, Paris, France.
| | - Wei-Hua Huang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, People's Republic of China.
- Department of Hepatobiliary and Pancreatic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, People's Republic of China.
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35
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Yamasaki H, Itoh RD, Mizumoto KB, Yoshida YS, Otaki JM, Cohen MF. Spatiotemporal Characteristics Determining the Multifaceted Nature of Reactive Oxygen, Nitrogen, and Sulfur Species in Relation to Proton Homeostasis. Antioxid Redox Signal 2024. [PMID: 38407968 DOI: 10.1089/ars.2023.0544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Significance: Reactive oxygen species (ROS), reactive nitrogen species (RNS), and reactive sulfur species (RSS) act as signaling molecules, regulating gene expression, enzyme activity, and physiological responses. However, excessive amounts of these molecular species can lead to deleterious effects, causing cellular damage and death. This dual nature of ROS, RNS, and RSS presents an intriguing conundrum that calls for a new paradigm. Recent Advances: Recent advancements in the study of photosynthesis have offered significant insights at the molecular level and with high temporal resolution into how the photosystem II oxygen-evolving complex manages to prevent harmful ROS production during the water-splitting process. These findings suggest that a dynamic spatiotemporal arrangement of redox reactions, coupled with strict regulation of proton transfer, is crucial for minimizing unnecessary ROS formation. Critical Issues: To better understand the multifaceted nature of these reactive molecular species in biology, it is worth considering a more holistic view that combines ecological and evolutionary perspectives on ROS, RNS, and RSS. By integrating spatiotemporal perspectives into global, cellular, and biochemical events, we discuss local pH or proton availability as a critical determinant associated with the generation and action of ROS, RNS, and RSS in biological systems. Future Directions: The concept of localized proton availability will not only help explain the multifaceted nature of these ubiquitous simple molecules in diverse systems but also provide a basis for new therapeutic strategies to manage and manipulate these reactive species in neural disorders, pathogenic diseases, and antiaging efforts.
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Affiliation(s)
- Hideo Yamasaki
- Faculty of Science, University of the Ryukyus, Okinawa, Japan
| | - Ryuuichi D Itoh
- Faculty of Science, University of the Ryukyus, Okinawa, Japan
| | | | - Yuki S Yoshida
- Faculty of Science, University of the Ryukyus, Okinawa, Japan
| | - Joji M Otaki
- Faculty of Science, University of the Ryukyus, Okinawa, Japan
| | - Michael F Cohen
- University of California Cooperative Extension, Santa Clara County, San Jose, California, USA
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36
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Wu Y, Lun W, Zeng H, Guo X, Yang M, Lan Q. A facile near-infrared xanthene fluorescence probe for visualizing of hypochlorous acid in vitro and in vivo. Anal Chim Acta 2024; 1294:342292. [PMID: 38336413 DOI: 10.1016/j.aca.2024.342292] [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: 08/03/2023] [Revised: 01/07/2024] [Accepted: 01/26/2024] [Indexed: 02/12/2024]
Abstract
BACKGROUND Hypochlorous acid (HClO) is an important biomarker for inflammation, cardiovascular disease, and even cancer. It is of great significance to accurately monitor and quantitatively analyze the fluctuations of HClO to better understand their physiological functions. Traditional HClO detection methods such as high-performance liquid chromatography (HPLC), and mass spectrometry are preferred, but are costly and unsuitable in vivo. Near-infrared (NIR) fluorescence imaging has the advantages of high sensitivity, high temporal and spatial resolutions, minimal autofluorescence, and deep tissue penetration, which facilitates its application in biological systems. Therefore, the development of sensitivity and simple NIR fluorescence monitoring HClO methods in vivo and in vitro is essential and desirable. RESULTS Herein, we present a NIR probe NOF3 by integrating the rhodamine scaffold and HClO-triggered moiety for the real-time detection of HClO in vitro and in vivo. NOF3 reacts with the HClO and releases the NOF-OH fluorophore of emitted signals at 730 nm, which is in the NIR region. The designed probe detected concentrations of HClO ranging from 0 to 17 μM with a low detection limit of 0.146 μM, presenting excellent sensitivity and selectivity toward HClO over other species. NOF3 manifests significantly turn-on NIR fluorescent signals in response to HClO concentration, which makes it favorable for monitoring dynamic HClO distribution in vivo. We exemplify NOF3 for the tracking of endogenously overexpressed HClO distribution in RAW 264.7 cells, and further realize real-time in vivo bioimaging of HClO activity in inflammation mice. SIGNIFICANCE The facile NIR NOF3 probe was successfully applied to visualize endogenous and exogenous HClO in living cells and mice. This study provides not only an effective tool for spatial and temporal resolution HClO bioimaging in vivo but also possesses great potential for use in future research on HClO-related biology and pathology.
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Affiliation(s)
- Yongquan Wu
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, 341000, PR China
| | - Weican Lun
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, 341000, PR China
| | - Hong Zeng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, 341000, PR China
| | - Xiaomei Guo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, 341000, PR China
| | - Min Yang
- Key Laboratory of Biomaterials and Biofabrication in Tissue Engineering of Jiangxi Province, School of Pharmacy, Gannan Medical University, Ganzhou, 341000, PR China.
| | - Qingchun Lan
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, 341000, PR China.
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37
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Sharma A, Verwilst P, Li M, Ma D, Singh N, Yoo J, Kim Y, Yang Y, Zhu JH, Huang H, Hu XL, He XP, Zeng L, James TD, Peng X, Sessler JL, Kim JS. Theranostic Fluorescent Probes. Chem Rev 2024; 124:2699-2804. [PMID: 38422393 PMCID: PMC11132561 DOI: 10.1021/acs.chemrev.3c00778] [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: 11/03/2023] [Revised: 01/31/2024] [Accepted: 02/08/2024] [Indexed: 03/02/2024]
Abstract
The ability to gain spatiotemporal information, and in some cases achieve spatiotemporal control, in the context of drug delivery makes theranostic fluorescent probes an attractive and intensely investigated research topic. This interest is reflected in the steep rise in publications on the topic that have appeared over the past decade. Theranostic fluorescent probes, in their various incarnations, generally comprise a fluorophore linked to a masked drug, in which the drug is released as the result of certain stimuli, with both intrinsic and extrinsic stimuli being reported. This release is then signaled by the emergence of a fluorescent signal. Importantly, the use of appropriate fluorophores has enabled not only this emerging fluorescence as a spatiotemporal marker for drug delivery but also has provided modalities useful in photodynamic, photothermal, and sonodynamic therapeutic applications. In this review we highlight recent work on theranostic fluorescent probes with a particular focus on probes that are activated in tumor microenvironments. We also summarize efforts to develop probes for other applications, such as neurodegenerative diseases and antibacterials. This review celebrates the diversity of designs reported to date, from discrete small-molecule systems to nanomaterials. Our aim is to provide insights into the potential clinical impact of this still-emerging research direction.
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Affiliation(s)
- Amit Sharma
- Amity
School of Chemical Sciences, Amity University
Punjab, Sector 82A, Mohali 140 306, India
| | - Peter Verwilst
- Rega
Institute for Medical Research, Medicinal Chemistry, KU Leuven, Herestraat 49, Box 1041, 3000 Leuven, Belgium
| | - Mingle Li
- College
of Materials Science and Engineering, Shenzhen
University, Shenzhen 518060, China
| | - Dandan Ma
- College
of Materials Science and Engineering, Shenzhen
University, Shenzhen 518060, China
- College
of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Nem Singh
- Department
of Chemistry, Korea University, Seoul 02841, Korea
| | - Jiyoung Yoo
- Department
of Chemistry, Korea University, Seoul 02841, Korea
| | - Yujin Kim
- Department
of Chemistry, Korea University, Seoul 02841, Korea
| | - Ying Yang
- School of
Light Industry and Food Engineering, Guangxi
University, Nanning, Guangxi 530004, China
| | - Jing-Hui Zhu
- College
of Materials Science and Engineering, Shenzhen
University, Shenzhen 518060, China
- College
of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Haiqiao Huang
- College
of Materials Science and Engineering, Shenzhen
University, Shenzhen 518060, China
- College
of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Xi-Le Hu
- Key
Laboratory for Advanced Materials and Joint International Research
Laboratory of Precision Chemistry and Molecular Engineering, Feringa
Nobel Prize Scientist Joint Research Center, School of Chemistry and
Molecular Engineering, East China University
of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xiao-Peng He
- Key
Laboratory for Advanced Materials and Joint International Research
Laboratory of Precision Chemistry and Molecular Engineering, Feringa
Nobel Prize Scientist Joint Research Center, School of Chemistry and
Molecular Engineering, East China University
of Science and Technology, 130 Meilong Road, Shanghai 200237, China
- National
Center for Liver Cancer, the International Cooperation Laboratory
on Signal Transduction, Eastern Hepatobiliary
Surgery Hospital, Shanghai 200438, China
| | - Lintao Zeng
- School of
Light Industry and Food Engineering, Guangxi
University, Nanning, Guangxi 530004, China
| | - Tony D. James
- Department
of Chemistry, University of Bath, Bath BA2 7AY, United Kingdom
- School
of Chemistry and Chemical Engineering, Henan
Normal University, Xinxiang 453007, China
| | - Xiaojun Peng
- College
of Materials Science and Engineering, Shenzhen
University, Shenzhen 518060, China
- State
Key Laboratory of Fine Chemicals, Dalian
University of Technology, Dalian 116024, China
| | - Jonathan L. Sessler
- Department
of Chemistry, The University of Texas at
Austin, Texas 78712-1224, United
States
| | - Jong Seung Kim
- Department
of Chemistry, Korea University, Seoul 02841, Korea
- TheranoChem Incorporation, Seongbuk-gu, Seoul 02841, Korea
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38
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Martins MC, Alves CM, Teixeira M, Folgosa F. The flavodiiron protein from Syntrophomonas wolfei has five domains and acts both as an NADH:O 2 or an NADH:H 2 O 2 oxidoreductase. FEBS J 2024; 291:1275-1294. [PMID: 38129989 DOI: 10.1111/febs.17040] [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: 07/06/2023] [Revised: 11/10/2023] [Accepted: 12/20/2023] [Indexed: 12/23/2023]
Abstract
Flavodiiron proteins (FDPs) are a family of enzymes with a significant role in O2 /H2 O2 and/or NO detoxification through the reduction of these species to H2 O or N2 O, respectively. All FDPs contain a minimal catalytic unit of two identical subunits, each one having a metallo-β-lactamase-like domain harboring the catalytic diiron site, and a flavodoxin-like domain. However, more complex and diverse arrangements in terms of domains are found in this family, of which the class H enzymes are among the most complex. One of such FDPs is encoded in the genome of the anaerobic bacterium Syntrophomonas wolfei subsp. wolfei str. Goettingen G311. Besides the core domains, this protein is predicted to have three additional ones after the flavodoxin core domain: two short-chain rubredoxins and a NAD(P)H:rubredoxin oxidoreductase-like domain. This enzyme, FDP_H, was produced and characterized and the presence of the predicted cofactors was investigated by a set of biochemical and spectroscopic methodologies. Syntrophomonas wolfei FDP_H exhibited a remarkable O2 reduction activity with a kcat = 52.0 ± 1.2 s-1 and a negligible NO reduction activity (~ 100 times lower than with O2 ), with NADH as an electron donor, that is, it is an oxygen-selective FDP. In addition, this enzyme showed the highest turnover value for H2 O2 reduction (kcat = 19.1 ± 2.2 s-1 ) ever observed among FDPs. Kinetic studies of site-directed mutants of iron-binding cysteines at the two rubredoxin domains demonstrated the essential role of these centers since their absence leads to a significant decrease or even abolishment of O2 and H2 O2 reduction activities.
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Affiliation(s)
- Maria C Martins
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
| | - Catarina M Alves
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
| | - Miguel Teixeira
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
| | - Filipe Folgosa
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, Portugal
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Peng T, Han CQ, Xia HL, Zhou K, Zhang J, Si J, Wang L, Miao J, Guo FA, Wang H, Qu LL, Xu G, Li J, Liu XY. Reticular chemistry guided precise construction of zirconium-pentacarboxylate frameworks with 5-connected Zr 6 clusters. Chem Sci 2024; 15:3174-3181. [PMID: 38425507 PMCID: PMC10901486 DOI: 10.1039/d3sc05410a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 01/19/2024] [Indexed: 03/02/2024] Open
Abstract
Zirconium-based metal-organic frameworks (Zr-MOFs) have been extensively studied due to their very rich structural chemistry. The combination of nearly unlimited carboxylic acid-based linkers and Zr6 clusters with multiple connectivities has led to diverse structures and specific properties of resultant Zr-MOFs. Herein, we demonstrate the successful use of reticular chemistry to construct two novel Zr-MOFs, HIAM-4040 and HIAM-4040-OH, with zfu topology. Based on a thorough structural analysis of (4,4)-connected lvt-type Zr-tetracarboxylate frameworks and a judicious linker design, we have obtained the first example of a Zr-pentacarboxylate framework featuring unprecedented 5-connected organic linkers and 5-connected Zr6 clusters. Compared with HIAM-4040, a larger Stokes shift is achieved in HIAM-4040-OH via hydroxyl group induced excited-state intramolecular proton transfer (ESIPT). HIAM-4040-OH exhibits high chemical and thermal stability and is used for HClO detection in aqueous solution with excellent sensitivity and selectivity.
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Affiliation(s)
- Tianyou Peng
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University 7098 Liuxian Blvd, Nanshan District Shenzhen 518055 P. R. China
- College of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 P. R. China
| | - Chao-Qin Han
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University 7098 Liuxian Blvd, Nanshan District Shenzhen 518055 P. R. China
| | - Hai-Lun Xia
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University 7098 Liuxian Blvd, Nanshan District Shenzhen 518055 P. R. China
| | - Kang Zhou
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University 7098 Liuxian Blvd, Nanshan District Shenzhen 518055 P. R. China
| | - Jian Zhang
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University 7098 Liuxian Blvd, Nanshan District Shenzhen 518055 P. R. China
| | - Jincheng Si
- School of Chemistry and Materials Science, Jiangsu Normal University Xuzhou 221116 P. R. China
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University 7098 Liuxian Blvd, Nanshan District Shenzhen 518055 P. R. China
| | - Lei Wang
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University 7098 Liuxian Blvd, Nanshan District Shenzhen 518055 P. R. China
| | - Jiafeng Miao
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University 7098 Liuxian Blvd, Nanshan District Shenzhen 518055 P. R. China
| | - Fu-An Guo
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University 7098 Liuxian Blvd, Nanshan District Shenzhen 518055 P. R. China
| | - Hao Wang
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University 7098 Liuxian Blvd, Nanshan District Shenzhen 518055 P. R. China
| | - Lu-Lu Qu
- School of Chemistry and Materials Science, Jiangsu Normal University Xuzhou 221116 P. R. China
| | - Guozhong Xu
- College of Chemical Engineering, University of Science and Technology Liaoning Anshan 114051 P. R. China
| | - Jing Li
- Department of Chemistry and Chemical Biology, Rutgers University 123 Bevier Road Piscataway New Jersey 08854 USA
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University 7098 Liuxian Blvd, Nanshan District Shenzhen 518055 P. R. China
| | - Xiao-Yuan Liu
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University 7098 Liuxian Blvd, Nanshan District Shenzhen 518055 P. R. China
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40
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McDonald RA, Nagy SG, Chambers M, Broberg CA, Ahonen MJR, Schoenfisch MH. Nitric oxide-releasing prodrug for the treatment of complex Mycobacterium abscessus infections. Antimicrob Agents Chemother 2024; 68:e0132723. [PMID: 38206003 PMCID: PMC10848776 DOI: 10.1128/aac.01327-23] [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: 10/10/2023] [Accepted: 11/17/2023] [Indexed: 01/12/2024] Open
Abstract
Non-tuberculosis mycobacteria (NTM) can cause severe respiratory infection in patients with underlying pulmonary conditions, and these infections are extremely difficult to treat. In this report, we evaluate a nitric oxide (NO)-releasing prodrug [methyl tris diazeniumdiolate (MD3)] against a panel of NTM clinical isolates and as a treatment for acute and chronic NTM infections in vivo. Its efficacy in inhibiting growth or killing mycobacteria was explored in vitro alongside evaluation of the impact to primary human airway epithelial tissue. Airway epithelial tissues remained viable after exposure at concentrations of MD3 needed to kill mycobacteria, with no inherent toxic effect from drug scaffold after NO liberation. Resistance studies conducted via serial passage with representative Mycobacterium abscessus isolates demonstrated no resistance to MD3. When administered directly into the lung via intra-tracheal administration in mice, MD3 demonstrated significant reduction in M. abscessus bacterial load in both acute and chronic models of M. abscessus lung infection. In summary, MD3 is a promising treatment for complex NTM pulmonary infection, specifically those caused by M. abscessus, and warrants further exploration as a therapeutic.
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Affiliation(s)
| | - Sarah G. Nagy
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | | | - Chris A. Broberg
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | | | - Mark H. Schoenfisch
- Vast Therapeutics, Durham, North Carolina, USA
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- Division of Pharmacoengineering and Molecular Pharmaceutics, UNC Eshelman School of Pharmacy, Chapel Hill, North Carolina, USA
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Fan G, Zhang B, Wang J, Wang N, Qin S, Zhao W, Zhang J. Accurate construction of NIR probe for visualizing HClO fluctuations in type I, type II diabetes and diabetic liver disease assisted by theoretical calculation. Talanta 2024; 268:125298. [PMID: 37832452 DOI: 10.1016/j.talanta.2023.125298] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/21/2023] [Accepted: 10/06/2023] [Indexed: 10/15/2023]
Abstract
Hypochlorous acid (HClO) is a key signaling molecule which involved in various pathological and physiological processes and the immune system. It had been proved that excess HClO in the organisms was closely associated with diabetes. In this paper, we constructed a series of BODIPY-based fluorophores modified with olefinic bond. With the assistance of theoretical calculations, the optimized near-infrared (NIR) dye BDP-ENE-S-Me, which possessed the longest wavelength (690 nm) and the best stability, was screened and synthesized. Based on BDP-ENE-S-Me, we further introduced N, N-dimethylcarbamate group to construct a NIR fluorescent probe BDP-ENE-ClO. BDP-ENE-ClO displayed excellent selectivity and sensitivity with a low detection limit (49 nM) towards HClO. Besides, the probe was successfully applied in monitoring concentration fluctuations of HClO in vitro and in vivo caused by various stimuli. Most importantly, the over-production of HClO in the type I, type II diabetes and diabetic liver disease mice models could be visualized and assessed precisely with the assistance of BDP-ENE-ClO. By comparing fluorescent intensity of diabetic mice models with that of diabetic liver disease mice models, the probe was competent to assess the progression of diabetes.
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Affiliation(s)
- Guanwen Fan
- Key Laboratory for Special Functional Materials of Ministry of Education, School of Materials, Henan University, Kaifeng, 475004, PR China
| | - Bo Zhang
- Key Laboratory for Special Functional Materials of Ministry of Education, School of Materials, Henan University, Kaifeng, 475004, PR China
| | - Jiamin Wang
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University, Kaifeng, 475004, PR China.
| | - Nannan Wang
- Key Laboratory for Special Functional Materials of Ministry of Education, School of Materials, Henan University, Kaifeng, 475004, PR China
| | - Shuchun Qin
- Key Laboratory for Special Functional Materials of Ministry of Education, School of Materials, Henan University, Kaifeng, 475004, PR China
| | - Weili Zhao
- Key Laboratory for Special Functional Materials of Ministry of Education, School of Materials, Henan University, Kaifeng, 475004, PR China; School of Pharmacy, Institutes of Integrative Medicine, Fudan University, Shanghai, 201203, PR China
| | - Jian Zhang
- Key Laboratory for Special Functional Materials of Ministry of Education, School of Materials, Henan University, Kaifeng, 475004, PR China.
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Guo Y, Ding S, Shang C, Zhang C, Li M, Zhang Q, Gu L, Heng BC, Zhang S, Mei F, Huang Y, Zhang X, Xu M, Jiang J, Guo S, Deng X, Chen L. Multifunctional PtCuTe Nanosheets with Strong ROS Scavenging and ROS-Independent Antibacterial Properties Promote Diabetic Wound Healing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2306292. [PMID: 37723937 DOI: 10.1002/adma.202306292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/22/2023] [Indexed: 09/20/2023]
Abstract
Nanozymes, as one of the most efficient reactive oxygen species (ROS)-scavenging biomaterials, are receiving wide attention in promoting diabetic wound healing. Despite recent attempts at improving the catalytic efficiency of Pt-based nanozymes (e.g., PtCu, one of the best systems), they still display quite limited ROS scavenging capacity and ROS-dependent antibacterial effects on bacteria or immunocytes, which leads to uncontrolled and poor diabetic wound healing. Hence, a new class of multifunctional PtCuTe nanosheets with excellent catalytic, ROS-independent antibacterial, proangiogenic, anti-inflammatory, and immuno-modulatory properties for boosting the diabetic wound healing, is reported. The PtCuTe nanosheets show stronger ROS scavenging capacity and better antibacterial effects than PtCu. It is also revealed that the PtCuTe can enhance vascular tube formation, stimulate macrophage polarization toward the M2 phenotype and improve fibroblast mobility, outperforming conventional PtCu. Moreover, PtCuTe promotes crosstalk between different cell types to form a positive feedback loop. Consequently, PtCuTe stimulates a proregenerative environment with relevant cell populations to ensure normal tissue repair. Utilizing a diabetic mouse model, it is demonstrated that PtCuTe significantly facilitated the regeneration of highly vascularized skin, with the percentage of wound closure being over 90% on the 8th day, which is the best among the reported comparable multifunctional biomaterials.
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Affiliation(s)
- Yaru Guo
- Department of Geriatric Dentistry, NMPA Key Laboratory for Dental Materials, National Engineering Laboratory for Digital and Material, Technology of Stomatology, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Shuai Ding
- Department of Orthodontics, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, 100081, China
| | - Changshuai Shang
- School of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Chenguang Zhang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou, 528406, China
| | - Menggang Li
- School of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Qinghua Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Lin Gu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Boon Chin Heng
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Shihan Zhang
- Department of Geriatric Dentistry, NMPA Key Laboratory for Dental Materials, National Engineering Laboratory for Digital and Material, Technology of Stomatology, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Feng Mei
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Ying Huang
- Department of Geriatric Dentistry, NMPA Key Laboratory for Dental Materials, National Engineering Laboratory for Digital and Material, Technology of Stomatology, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Xuehui Zhang
- Department of Geriatric Dentistry, NMPA Key Laboratory for Dental Materials, National Engineering Laboratory for Digital and Material, Technology of Stomatology, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Mingming Xu
- Department of Geriatric Dentistry, NMPA Key Laboratory for Dental Materials, National Engineering Laboratory for Digital and Material, Technology of Stomatology, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Jiuhui Jiang
- Department of Orthodontics, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, 100081, China
| | - Shaojun Guo
- School of Materials Science and Engineering, Peking University, Beijing, 100871, China
| | - Xuliang Deng
- Department of Geriatric Dentistry, NMPA Key Laboratory for Dental Materials, National Engineering Laboratory for Digital and Material, Technology of Stomatology, Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Lili Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
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Takahashi K, Oshiki M, Ruan C, Morinaga K, Toyofuku M, Nomura N, Johnson DR. Denitrification in low oxic environments increases the accumulation of nitrogen oxide intermediates and modulates the evolutionary potential of microbial populations. ENVIRONMENTAL MICROBIOLOGY REPORTS 2024; 16:e13221. [PMID: 38037543 PMCID: PMC10866065 DOI: 10.1111/1758-2229.13221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 11/15/2023] [Indexed: 12/02/2023]
Abstract
Denitrification in oxic environments occurs when a microorganism uses nitrogen oxides as terminal electron acceptors even though oxygen is available. While this phenomenon is well-established, its consequences on ecological and evolutionary processes remain poorly understood. We hypothesize here that denitrification in oxic environments can modify the accumulation profiles of nitrogen oxide intermediates with cascading effects on the evolutionary potentials of denitrifying microorganisms. To test this, we performed laboratory experiments with Paracoccus denitrificans and complemented them with individual-based computational modelling. We found that denitrification in low oxic environments significantly increases the accumulation of nitrite and nitric oxide. We further found that the increased accumulation of these intermediates has a negative effect on growth at low pH. Finally, we found that the increased negative effect at low pH increases the number of individuals that contribute to surface-associated growth. This increases the amount of genetic diversity that is preserved from the initial population, thus increasing the number of genetic targets for natural selection to act upon and resulting in higher evolutionary potentials. Together, our data highlight that denitrification in low oxic environments can affect the ecological processes and evolutionary potentials of denitrifying microorganisms by modifying the accumulation of nitrogen oxide intermediates.
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Affiliation(s)
- Kohei Takahashi
- Graduate School of Sciences and TechnologiesUniversity of TsukubaTsukubaIbarakiJapan
- Department of Environmental MicrobiologySwiss Federal Institute of Aquatic Science and Technology (Eawag)DübendorfSwitzerland
| | - Mamoru Oshiki
- Division of Environmental Engineering, Faculty of EngineeringHokkaido UniversitySapporoHokkaidoJapan
| | - Chujin Ruan
- Department of Environmental MicrobiologySwiss Federal Institute of Aquatic Science and Technology (Eawag)DübendorfSwitzerland
| | - Kana Morinaga
- Graduate School of Sciences and TechnologiesUniversity of TsukubaTsukubaIbarakiJapan
| | - Masanori Toyofuku
- Faculty of Life and Environmental SciencesUniversity of TsukubaTsukubaIbarakiJapan
- Microbiology Research Center for SustainabilityUniversity of TsukubaTsukubaIbarakiJapan
| | - Nobuhiko Nomura
- Faculty of Life and Environmental SciencesUniversity of TsukubaTsukubaIbarakiJapan
- Microbiology Research Center for SustainabilityUniversity of TsukubaTsukubaIbarakiJapan
| | - David R. Johnson
- Department of Environmental MicrobiologySwiss Federal Institute of Aquatic Science and Technology (Eawag)DübendorfSwitzerland
- Institute of Ecology and EvolutionUniversity of BernBernSwitzerland
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Chernitsyna SM, Elovskaya IS, Bukin SV, Bukin YS, Pogodaeva TV, Kwon DA, Zemskaya TI. Genomic and morphological characterization of a new Thiothrix species from a sulfide hot spring of the Zmeinaya bay (Northern Baikal, Russia). Antonie Van Leeuwenhoek 2024; 117:23. [PMID: 38217803 DOI: 10.1007/s10482-023-01918-w] [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: 08/18/2023] [Accepted: 12/08/2023] [Indexed: 01/15/2024]
Abstract
A survey for bacteria of the genus Thiothrix indicated that they inhabited the area where the water of the Zmeiny geothermal spring (northern basin of Lake Baikal, Russia) mixed with the lake water. In the coastal zone of the lake oxygen (8.25 g/L) and hydrogen sulfide (up to 1 mg/L) were simultaneously present at sites of massive growth of these particular Thiothrix bacteria. Based on the analysis of the morphological characteristics and sequence of individual genes (16S rRNA, rpoB and tilS), we could not attribute the Thiothrix from Lake Baikal to any of the known species of this genus. To determine metabolic capabilities and phylogenetic position of the Thiothrix sp. from Lake Baikal, we analyzed their whole genome. Like all members of this genus, the bacteria from Lake Baikal were capable of organo-heterotrophic, chemolithoheterotrophic, and chemolithoautotrophic growth and differed from its closest relatives in the spectrum of nitrogen and sulfur cycle genes as well as in the indices of average nucleotide identity (ANI < 75-94%), amino acid identity (AAI < 94%) and in silico DNA-DNA hybridization (dDDH < 17-57%), which were below the boundary of interspecies differences, allowing us to identify them as novel candidate species.
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Affiliation(s)
| | | | - S V Bukin
- Limnological Institute SB RAS, Irkutsk, Russia
| | - Yu S Bukin
- Limnological Institute SB RAS, Irkutsk, Russia
| | | | - D A Kwon
- Institute of Genome Analysis, Moscow, Russia
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Arora A, Singh M, Saini V, Mehta D, Safwan SM, Pandey N, Verma V, Bajaj A. Cholic Acid-Derived Gemini Amphiphile Can Eradicate Interkingdom Polymicrobial Biofilms and Wound Infections. ACS Infect Dis 2024; 10:138-154. [PMID: 38146853 DOI: 10.1021/acsinfecdis.3c00369] [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: 12/27/2023]
Abstract
Biofilm infections are mainly caused by Gram-positive bacteria (GPB) like Staphylococcus aureus, Gram-negative bacteria (GNB) like Pseudomonas aeruginosa, and fungi like Candida albicans. These infections are responsible for antimicrobial tolerance, and commensal interactions of these microbes pose a severe threat to chronic infections. Treatment therapies against biofilm infections are limited to eradicating only 20-30% of infections. Here, we present the synthesis of a series of bile acid-derived molecules using lithocholic acid, deoxycholic acid, and cholic acid where two bile acid molecules are tethered through 3'-hydroxyl or 24'-carboxyl terminals with varying spacer length (trimethylene, pentamethylene, octamethylene, and dodecamethylene). Our structure-activity relationship investigations revealed that G21, a cholic acid-derived gemini amphiphile having trimethylene spacer tethered through the C24 position, is a broad-spectrum antimicrobial agent. Biochemical studies witnessed that G21 interacts with negatively charged lipoteichoic acid, lipopolysaccharide, and phosphatidylcholine moieties of GPB, GNB, and fungi and disrupts the microbial cell membranes. We further demonstrated that G21 can eradicate polymicrobial biofilms and wound infections and prevent bacteria and fungi from developing drug resistance. Therefore, our findings revealed the potential of G21 as a versatile antimicrobial agent capable of effectively targeting polymicrobial biofilms and wound infections, suggesting that it is a promising antimicrobial agent for future applications.
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Affiliation(s)
- Amit Arora
- Department of Chemistry, Guru Jambheshwar University of Science & Technology, Hisar 125001, Haryana, India
| | - Mohit Singh
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, 3rd Milestone Faridabad-Gurgaon Expressway, NCR Biotech Cluster, Faridabad 121001, Haryana, India
| | - Varsha Saini
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, 3rd Milestone Faridabad-Gurgaon Expressway, NCR Biotech Cluster, Faridabad 121001, Haryana, India
| | - Devashish Mehta
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, 3rd Milestone Faridabad-Gurgaon Expressway, NCR Biotech Cluster, Faridabad 121001, Haryana, India
| | - Sayed M Safwan
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, 3rd Milestone Faridabad-Gurgaon Expressway, NCR Biotech Cluster, Faridabad 121001, Haryana, India
| | - Nishant Pandey
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, 3rd Milestone Faridabad-Gurgaon Expressway, NCR Biotech Cluster, Faridabad 121001, Haryana, India
| | - Vikas Verma
- Department of Chemistry, Guru Jambheshwar University of Science & Technology, Hisar 125001, Haryana, India
| | - Avinash Bajaj
- Laboratory of Nanotechnology and Chemical Biology, Regional Centre for Biotechnology, 3rd Milestone Faridabad-Gurgaon Expressway, NCR Biotech Cluster, Faridabad 121001, Haryana, India
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Lee YS, Ji BJ, Pae HO, Cheon MW, Xu G, Chun HS, Kim S. Anti-Inflammatory Effect of Fermented Cabbage Extract Containing Nitric Oxide Metabolites with Silica. Int J Mol Sci 2024; 25:775. [PMID: 38255849 PMCID: PMC10815266 DOI: 10.3390/ijms25020775] [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: 11/27/2023] [Revised: 12/30/2023] [Accepted: 12/31/2023] [Indexed: 01/24/2024] Open
Abstract
The aim of this study was to evaluate the anti-inflammatory effect of fermented cabbage extract (FC) containing nitric oxide metabolites with silica (FCS) on 1-fluoro-2,4-dinitrofluorobenzene (DNFB)-induced atopic dermatitis (AD) in BALB/c mice. Atopic dermatitis-like allergic contact dermatitis was induced by DNFB challenge in the ear after DNFB sensitization on the dorsal skin of mice. FCS alleviated the severity of atopic dermatitis-like skin lesions. In addition, epidermis thickness of the ear and penetration of inflammatory cells in atopic dermatitis-like skin lesions were decreased after topical application of FCS. The serum levels of TNF-α and IL-4 were measured in atopic dermatitis mice using ELISA kits, which were observed to be significantly decreased after topical application of FCS. This study demonstrates that the FCS can be used as a potential therapeutic for the treatment and prevention of AD.
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Affiliation(s)
- Yun-Seong Lee
- Department of Microbiology and Immunology, School of Medicine, Wonkwang University, Iksan 54538, Republic of Korea; (Y.-S.L.); (H.-O.P.)
| | - Byeong-Jun Ji
- HumanEnos LLC., Wanju 55347, Republic of Korea;
- Department of Biomedical Sciences and Institute for Medical Science, Chonbuk National University Medical School, Jeonju 54907, Republic of Korea
| | - Hyun-Ock Pae
- Department of Microbiology and Immunology, School of Medicine, Wonkwang University, Iksan 54538, Republic of Korea; (Y.-S.L.); (H.-O.P.)
| | - Mu-Weon Cheon
- Department of Chemistry, KwangWoon University, Seoul 01897, Republic of Korea;
| | - Guangpeng Xu
- Department of Environment Science & Biotechnology, Jeonju University, Jeonju 55069, Republic of Korea;
| | | | - Sooah Kim
- Department of Environment Science & Biotechnology, Jeonju University, Jeonju 55069, Republic of Korea;
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Zhang J, Xu Q, Zhang Y, Foda MF, Cai K, Liu Q, Jia F, Wang H, Xu F, Han H, Liang H. Natural bioactive lysosomes extracted from multiple cells for tumor therapy. Biomaterials 2024; 304:122430. [PMID: 38100907 DOI: 10.1016/j.biomaterials.2023.122430] [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: 08/01/2023] [Revised: 11/07/2023] [Accepted: 12/10/2023] [Indexed: 12/17/2023]
Abstract
Nanoparticles of biological origin exhibit many unique properties in biological applications due to their exquisite structure, specific composition, and natural biological functionality. In this study, we obtained lysosomes from three distinct cell types (one normal cell and two activated immune cells) and demonstrated their potential as natural therapeutic nanoparticles for tumor therapy. In vitro experiments revealed that these lysosomes maintained their structural integrity, were well-distributed, and exhibited significant biological activity, which effectively induced cancer cell death by generating ROS and disrupting biological substrates. Additionally, in vivo investigations showed that these lysosomes could accumulate in tumor tissues after intravenous administration and exhibited exceptional therapeutic effects through the destruction of tumor blood vessels and the degradation of immunosuppressive proteins, with complete tumor disappearance in a single treatment. This research on the utilization of bioactive lysosomes for tumor treatment provides valuable insights into drug development and tumor treatment, particularly when conventional approaches have proven ineffective.
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Affiliation(s)
- Jin Zhang
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, College of Science, Huazhong Agricultural University, Wuhan, 430070, Hubei, China; The Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Key Laboratory of Viral Vectors for Biomedicine, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, NMPA Key Laboratory for Research and Evaluation of Viral Vector Technology in Cell and Gene Therapy Medicinal Products, Shenzhen Key Laboratory of Quality Control Technology for Virus-Based Therapeutics, Guangdong Provincial Medical Products Administration, Shenzhen, 518055, China; State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China
| | - Quan Xu
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, College of Science, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Yifang Zhang
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, College of Science, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Mohamed F Foda
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, College of Science, Huazhong Agricultural University, Wuhan, 430070, Hubei, China; Department of Biochemistry, Faculty of Agriculture, Benha University, Moshtohor, Toukh, 13736, Egypt
| | - Kai Cai
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, College of Science, Huazhong Agricultural University, Wuhan, 430070, Hubei, China
| | - Qing Liu
- The Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Key Laboratory of Viral Vectors for Biomedicine, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, NMPA Key Laboratory for Research and Evaluation of Viral Vector Technology in Cell and Gene Therapy Medicinal Products, Shenzhen Key Laboratory of Quality Control Technology for Virus-Based Therapeutics, Guangdong Provincial Medical Products Administration, Shenzhen, 518055, China
| | - Fan Jia
- The Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Key Laboratory of Viral Vectors for Biomedicine, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, NMPA Key Laboratory for Research and Evaluation of Viral Vector Technology in Cell and Gene Therapy Medicinal Products, Shenzhen Key Laboratory of Quality Control Technology for Virus-Based Therapeutics, Guangdong Provincial Medical Products Administration, Shenzhen, 518055, China
| | - Huadong Wang
- The Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Key Laboratory of Viral Vectors for Biomedicine, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, NMPA Key Laboratory for Research and Evaluation of Viral Vector Technology in Cell and Gene Therapy Medicinal Products, Shenzhen Key Laboratory of Quality Control Technology for Virus-Based Therapeutics, Guangdong Provincial Medical Products Administration, Shenzhen, 518055, China
| | - Fuqiang Xu
- The Brain Cognition and Brain Disease Institute (BCBDI), Shenzhen Key Laboratory of Viral Vectors for Biomedicine, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions, NMPA Key Laboratory for Research and Evaluation of Viral Vector Technology in Cell and Gene Therapy Medicinal Products, Shenzhen Key Laboratory of Quality Control Technology for Virus-Based Therapeutics, Guangdong Provincial Medical Products Administration, Shenzhen, 518055, China.
| | - Heyou Han
- State Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, College of Science, Huazhong Agricultural University, Wuhan, 430070, Hubei, China.
| | - Huageng Liang
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, China; Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China.
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48
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Chen Y, Rong C, Gao W, Luo S, Guo Y, Gu Y, Yang G, Xu W, Zhu C, Qu LL. Ag-MXene as peroxidase-mimicking nanozyme for enhanced bacteriocide and cholesterol sensing. J Colloid Interface Sci 2024; 653:540-550. [PMID: 37729761 DOI: 10.1016/j.jcis.2023.09.097] [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: 07/18/2023] [Revised: 09/06/2023] [Accepted: 09/15/2023] [Indexed: 09/22/2023]
Abstract
Reactive oxygen species (ROS) are ideal alternative antibacterial reagents for rapid and effective sterilization. Although a variety of ROS-based antimicrobial strategies have been developed, many are still limited by their inefficiency. Herein, we report the synthesis of the Ag-MXene nanozyme, which have superior peroxidase-like activity for antibacterial applications. As a result, Ag-MXene nanozyme can efficiently increase the level of intracellular ROS, converting H2O2 into hydroxyl radicals that effectively kill both Gram-negative and Gram-positive bacteria and disrupting the bacterial biofilm formation. Moreover, a sensitive and selective colorimetric biosensor was constructed for assaying cholesterol based on the Ag-MXene's prominent peroxidase-mimicking activity and the cholesterol oxidase cascade reaction. The biosensor exhibits high performance with a linear cholesterol detection range of 2-800 μM, and a detection limit of 0.6 μM. Ag-MXene nanozyme can be used for the rapid detection of cholesterol in serum without complicated sample pretreatment. Collectively, it is conceivable that the proposed Ag-MXene nanozyme could be used as a biocide and as a cholesterol sensor. This study provides a broad prospect for the rapid detection and sterilization of MXene nanozymes in the biomedical field.
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Affiliation(s)
- Yu Chen
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Chengyu Rong
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Wenhui Gao
- School of Life Science, Jiangsu Normal University, Xuzhou, 221116, PR China
| | - Siyu Luo
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Yuxin Guo
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Yingqiu Gu
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Guohai Yang
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, PR China.
| | - Weiqing Xu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, PR China
| | - Chengzhou Zhu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, PR China
| | - Lu-Lu Qu
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou 221116, PR China.
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49
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Ferreira AZL, de Araújo CN, Cardoso ICC, de Souza Mangabeira KS, Rocha AP, Charneau S, Santana JM, Motta FN, Bastos IMD. Metacyclogenesis as the Starting Point of Chagas Disease. Int J Mol Sci 2023; 25:117. [PMID: 38203289 PMCID: PMC10778605 DOI: 10.3390/ijms25010117] [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: 10/10/2023] [Revised: 11/23/2023] [Accepted: 11/26/2023] [Indexed: 01/12/2024] Open
Abstract
Chagas disease is a neglected infectious disease caused by the protozoan Trypanosoma cruzi, primarily transmitted by triatomine vectors, and it threatens approximately seventy-five million people worldwide. This parasite undergoes a complex life cycle, transitioning between hosts and shifting from extracellular to intracellular stages. To ensure its survival in these diverse environments, T. cruzi undergoes extreme morphological and molecular changes. The metacyclic trypomastigote (MT) form, which arises from the metacyclogenesis (MTG) process in the triatomine hindgut, serves as a crucial link between the insect and human hosts and can be considered the starting point of Chagas disease. This review provides an overview of the current knowledge regarding the parasite's life cycle, molecular pathways, and mechanisms involved in metabolic and morphological adaptations during MTG, enabling the MT to evade the immune system and successfully infect human cells.
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Affiliation(s)
| | - Carla Nunes de Araújo
- Pathogen-Host Interface Laboratory, Department of Cell Biology, University of Brasilia, Brasilia 70910-900, Brazil
- Faculty of Ceilândia, University of Brasilia, Brasilia 70910-900, Brazil
| | - Isabela Cunha Costa Cardoso
- Pathogen-Host Interface Laboratory, Department of Cell Biology, University of Brasilia, Brasilia 70910-900, Brazil
| | | | - Amanda Pereira Rocha
- Pathogen-Host Interface Laboratory, Department of Cell Biology, University of Brasilia, Brasilia 70910-900, Brazil
| | - Sébastien Charneau
- Laboratory of Protein Chemistry and Biochemistry, Department of Cell Biology, University of Brasilia, Brasilia 70910-900, Brazil
| | - Jaime Martins Santana
- Pathogen-Host Interface Laboratory, Department of Cell Biology, University of Brasilia, Brasilia 70910-900, Brazil
| | - Flávia Nader Motta
- Pathogen-Host Interface Laboratory, Department of Cell Biology, University of Brasilia, Brasilia 70910-900, Brazil
- Faculty of Ceilândia, University of Brasilia, Brasilia 70910-900, Brazil
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50
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Das M, Sreedharan S, Shee S, Malhotra N, Nandy M, Banerjee U, Kohli S, Rajmani RS, Chandra N, Seshasayee ASN, Laxman S, Singh A. Cysteine desulfurase (IscS)-mediated fine-tuning of bioenergetics and SUF expression prevents Mycobacterium tuberculosis hypervirulence. SCIENCE ADVANCES 2023; 9:eadh2858. [PMID: 38091389 PMCID: PMC10848736 DOI: 10.1126/sciadv.adh2858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 11/10/2023] [Indexed: 12/18/2023]
Abstract
Iron-sulfur (Fe-S) biogenesis requires multiprotein assembly systems, SUF and ISC, in most prokaryotes. M. tuberculosis (Mtb) encodes a complete SUF system, the depletion of which was bactericidal. The ISC operon is truncated to a single gene iscS (cysteine desulfurase), whose function remains uncertain. Here, we show that MtbΔiscS is bioenergetically deficient and hypersensitive to oxidative stress, antibiotics, and hypoxia. MtbΔiscS resisted killing by nitric oxide (NO). RNA sequencing indicates that IscS is important for expressing regulons of DosR and Fe-S-containing transcription factors, WhiB3 and SufR. Unlike wild-type Mtb, MtbΔiscS could not enter a stable persistent state, continued replicating in mice, and showed hypervirulence. The suf operon was overexpressed in MtbΔiscS during infection in a NO-dependent manner. Suppressing suf expression in MtbΔiscS either by CRISPR interference or upon infection in inducible NO-deficient mice arrests hypervirulence. Together, Mtb redesigned the ISC system to "fine-tune" the expression of SUF machinery for establishing persistence without causing detrimental disease in the host.
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Affiliation(s)
- Mayashree Das
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore 560012, India
- Centre for Infectious Disease Research, Indian Institute of Science, Bangalore 560012, India
| | - Sreesa Sreedharan
- Institute for Stem Cell Science and Regenerative Medicine, Bangalore 560065, India
- School of Chemical and Biotechnology, (SASTRA)-Deemed to be University, Thanjavur 613401, India
| | - Somnath Shee
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore 560012, India
- Centre for Infectious Disease Research, Indian Institute of Science, Bangalore 560012, India
| | - Nitish Malhotra
- National Centre for Biological Sciences (NCBS), Tata Institute of Fundamental Research (TIFR), Bangalore 560065, India
| | - Meghna Nandy
- National Centre for Biological Sciences (NCBS), Tata Institute of Fundamental Research (TIFR), Bangalore 560065, India
| | - Ushashi Banerjee
- Department of Biochemistry, Indian Institute of Science, Bangalore 560012, India
| | - Sakshi Kohli
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore 560012, India
- Centre for Infectious Disease Research, Indian Institute of Science, Bangalore 560012, India
| | - Raju S. Rajmani
- Molecular Biophysics Unit, Indian Institute of Science, Bangalore 560012, India
| | - Nagasuma Chandra
- Department of Biochemistry, Indian Institute of Science, Bangalore 560012, India
| | - Aswin Sai Narain Seshasayee
- National Centre for Biological Sciences (NCBS), Tata Institute of Fundamental Research (TIFR), Bangalore 560065, India
| | - Sunil Laxman
- Institute for Stem Cell Science and Regenerative Medicine, Bangalore 560065, India
| | - Amit Singh
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore 560012, India
- Centre for Infectious Disease Research, Indian Institute of Science, Bangalore 560012, India
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