Article
Chemistry, Multidisciplinary
Haozheng Tang, Xinhua Qu, Wenkai Zhang, Xuan Chen, Shutao Zhang, Yang Xu, Hongtao Yang, You Wang, Jianping Yang, Wei-en Yuan, Bing Yue
Summary: In this study, an ultra-micro photosensitizer, AgB nanodots, were used to efficiently clear multidrug-resistant bacteria MRSA through photothermal therapy, photodynamic therapy, and Ag+ ion sterilization. The AgB nanodots were found to enhance host immunogenicity and establish immunological memory in a murine model, providing a novel platform for the effective treatment of postoperative infection and a systematic immunotherapeutic strategy to combat persistent infections, thereby reducing the incidence of recurrence.
ADVANCED MATERIALS
(2022)
Review
Materials Science, Multidisciplinary
Shreya Kanth, Akshatha Nagaraja, Yashoda Malgar Puttaiahgowda
Summary: The current global death rate is threatened by deadly unknown infections and the emergence of multidrug-resistant bacteria. Combatting drug-resistant bacteria, such as MRSA, has become a daunting challenge globally, with polymer synthesis being explored as a significant approach in preventing the spread of infections.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Cell Biology
Zhimin Bai, Min Chen, Qiaofa Lin, Ying Ye, Hongmei Fan, Kaizhen Wen, Jianxing Zeng, Donghong Huang, Wenfei Mo, Ying Lei, Zhijun Liao
Summary: By extracting feature vectors from protein sequences and using classification tools, MRSA and MSSA were successfully distinguished. MRSA showed high resistance to penicillin and high pathogenic risk. Cross-infection between different types of MRSA was found in Quanzhou, and MRSA in traditional hospitals exhibited increasingly blurred molecular characteristics.
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
(2021)
Article
Microbiology
Mariska T. Meijer, Alex F. de Vos, Hessel Peters Sengers, Brendon P. Scicluna, Joris J. Roelofs, Cherine Abou Faycal, Fabrice Uhel, Gertraud Orend, Tom van der Poll
Summary: The study found that TNC plays a moderate protective role against tissue pathology during the acute inflammatory phase of MRSA-induced pneumonia, but not during the bacterial clearance phase, suggesting a context-dependent effect of TNC. Contrary to previous descriptions, TNC does not seem to play a major role in disease outcome during MRSA-induced pneumonia.
MICROBIOLOGY SPECTRUM
(2021)
Review
Infectious Diseases
Joshua. B. Parsons, Annette. C. Westgeest, Brian. P. B. Conlon, Vance. G. Fowler
Summary: Methicillin-resistant Staphylococcus aureus (MRSA) is a deadly pathogen that can persist in the bloodstream for days despite appropriate antibiotics. Persistent MRSA bacteremia is common and associated with poor clinical outcomes. This review explores the factors related to host-pathogen interaction and discusses the clinical relevance of each element. Treatment options and diagnostic approaches for managing persistent MRSA bacteremia are also discussed.
Article
Public, Environmental & Occupational Health
Feiteng Zhu, Hemu Zhuang, Shujuan Ji, Er Xu, Lingfang Di, Zhengan Wang, Shengnan Jiang, Haiping Wang, Lu Sun, Ping Shen, Yunsong Yu, Yan Chen
Summary: The study found that in households of CA-MRSA infected patients in China, most MRSA isolates belonged to epidemic CA-MRSA clones, while no MRSA was detected in the control group households. The research revealed that the home environment is an important reservoir for MRSA.
FRONTIERS IN PUBLIC HEALTH
(2021)
Article
Microbiology
Melissa J. Karau, Suzannah M. Schmidt-Malan, Scott A. Cunningham, Jayawant N. Mandrekar, Bobbi S. Pritt, Tiffany R. Keepers, Alisa W. Serio, Surya Chitra, Robin Patel
Summary: Omadacycline, vancomycin, and rifampin, as well as rifampin combination therapies, were evaluated in an experimental rat model of MRSA osteomyelitis. The results showed that rifampin combination therapy was effective in reducing MRSA recovery without developing resistance. The combination of omadacycline and rifampin yielded negative MRSA detection, suggesting its potential as a treatment for osteomyelitis.
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
(2022)
Article
Immunology
Krisana Asano, Shouhei Hirose, Kouji Narita, Phawinee Subsomwong, Noriaki Kawai, Rojana Sukchawalit, Akio Nakane
Summary: Extracellular vesicles released from Staphylococcus aureus play a crucial role in infection communication, but immunization with these vesicles does not provide protective effects and instead triggers inflammatory responses and IgE-mediated hypersensitivity.
EMERGING MICROBES & INFECTIONS
(2021)
Article
Infectious Diseases
Jian Peng, Biswajit Mishra, Rajamohammed Khader, LewisOscar Felix, Eleftherios Mylonakis
Summary: In this study, a smaller antimicrobial peptide C18 derived from cecropin 4 showed high antibacterial activity against various bacteria and yeasts, with a remarkable effect on drug-resistant Staphylococcus aureus. C18 also exhibited the capability to eliminate persister cells, reduce biofilm adherence, interact with DNA, and down-regulate virulence factor genes. Moreover, C18 showed promising results in a Galleria mellonella model, highlighting its potential as a therapeutic candidate for severe MRSA infections.
Article
Food Science & Technology
Martina Florianova, Kristyna Korena, Helena Juricova
Summary: This study evaluated the prevalence of Staphylococcus aureus in dry-fermented salami and found multidrug-resistant and virulent strains. The source of contamination was identified as raw pork and human carriers. Therefore, maintaining high standards of hygiene and manufacturing practices in food processing is crucial.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2022)
Review
Infectious Diseases
Martyna Kasela, Mateusz Ossowski, Ewelina Dzikon, Katarzyna Ignatiuk, Lukasz Wlazlo, Anna Malm
Summary: Methicillin-resistant Staphylococcus aureus (MRSA) is a significant cause of infectious diseases in humans and animals, resulting in economic losses in human healthcare and the farming sector. The changing epidemiology of MRSA globally affects animal welfare and public health concerns. Livestock have high rates of MRSA colonization, raising questions about reservoirs and transmission, while companion animals vary in MRSA colonization and infection rates, impacting human health. This article highlights the circulation of animal-associated MRSA (AA-MRSA) in the environment and factors influencing its transmission, as well as successful strategies to limit its spread among animals and humans.
Article
Public, Environmental & Occupational Health
Sara Quero, Marina Serras-Pujol, Noemi Parraga-Nino, Carmen Torres, Marian Navarro, Anna Vilamala, Emma Puigoriol, Javier Diez de los Rios, Elisenda Arque, Judit Serra-Pladevall, Alba Romero, Daniel Molina, Roger Paredes, Maria Luisa Pedro-Botet, Esteban Reynaga
Summary: This study investigated the prevalence of methicillin-susceptible S. aureus (MSSA) and methicillin-resistant S. aureus (MRSA) among workers in the pork production chain. The results showed that the prevalence of MRSA was high among workers in contact with live animals, especially in pig farms, livestock transporters, and slaughterhouses.
Article
Biochemistry & Molecular Biology
Hanbeen Kim, Jakyeom Seo
Summary: Two potential endolysins were identified, with one showing better efficacy against MRSA.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Shutao Zhang, Xinhua Qu, Haozheng Tang, You Wang, Hongtao Yang, Weien Yuan, Bing Yue
Summary: The study shows that high-dose diclofenac inhibits the growth of MRSA without inducing drug-resistant mutations easily, while low-dose diclofenac can resensitize bacteria to beta-lactams and inhibit biofilm formation. Transcriptomic and proteomic analyses indicate that diclofenac reduces the expression of genes and proteins associated with antibiotic resistance and biofilm formation. Murine implant infection models suggest that diclofenac combined with beta-lactams can substantially alleviate MRSA infections in vivo, offering promising applications for preventing perioperative infections.
Article
Microbiology
Isabel Guthridge, Simon Smith, Matthew Law, Enzo Binotto, Josh Hanson
Summary: Lincosamides, particularly when used as a predominant therapy, show potential efficacy in the treatment of MRSA bacteremia, especially in young, clinically stable patients with few comorbidities. Patients receiving lincosamide-predominant therapy had lower in-hospital mortality and a lower incidence of renal complications compared to those receiving an alternative regimen. Prospective studies are needed to further define the optimal role of lincosamides in the treatment of MRSA bacteremia.
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
(2021)
Article
Critical Care Medicine
Dalis Collins, Christopher Fry, Bethany B. Moore, Jean A. Nemzek
Article
Critical Care Medicine
David N. O'Dwyer, Shanna L. Ashley, Stephen J. Gurczynski, Meng Xia, Carol Wilke, Nicole R. Falkowski, Katy C. Norman, Kelly B. Arnold, Gary B. Huffnagle, Margaret L. Salisbury, MeiLan K. Han, Kevin R. Flaherty, Eric S. White, Fernando J. Martinez, John R. Erb-Downward, Susan Murray, Bethany B. Moore, Robert P. Dickson
AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE
(2019)
Article
Critical Care Medicine
Xiaofeng Zhou, David N. O'Dwyer, Meng Xia, Holly K. Miller, Paul R. Chan, Kelsey Trulik, Mathew M. Chadwick, Timothy C. Hoffman, Camille Bulte, Kevin Sekerak, Carol A. Wilke, Swapneel J. Patel, Wayne M. Yokoyama, Susan Murray, Gregory A. Yanik, Bethany B. Moore
AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE
(2019)
Article
Biochemistry & Molecular Biology
Daniel J. Schneider, Katherine A. Smith, Catrina Latuszek, Carol A. Wilke, Danny M. Lyons, Loka R. Penke, Jennifer M. Speth, Matangi Marthi, Joel A. Swanson, Bethany B. Moore, Adam S. Lauring, Marc Peters-Golden
Editorial Material
Immunology
Stephen J. Gurczynski, Bethany B. Moore
MUCOSAL IMMUNOLOGY
(2020)
Article
Multidisciplinary Sciences
Eiji Saito, Stephen J. Gurczynski, Kevin R. Kramer, Carol A. Wilke, Stephen D. Miller, Bethany B. Moore, Lonnie D. Shea
Article
Medicine, Research & Experimental
Stephen J. Gurczynski, Nicolas L. Pereira, Steven M. Hrycaj, Carol Wilke, Rachel L. Zemans, Bethany B. Moore
Summary: The aryl-hydrocarbon receptor (AHR) plays a key role in controlling IL-17 responses and pulmonary fibrosis following bone marrow transplant (BMT) by regulating the production of AHR ligands in response to respiratory pathogens. Inhibition or genetic ablation of AHR signaling results in decreased IL-17 expression and lung pathology, indicating the importance of the TDO2/AHR axis in shaping immune responses to respiratory pathogens.
Article
Physiology
Elissa M. Hult, Stephen J. Gurczynski, Bethany B. Moore
Summary: Macrophages play a critical role in pulmonary fibrosis, with M2 macrophages being associated with profibrotic effects. Research shows that M2 macrophage conditioned media can promote fibroblast migration and proliferation, alveolar epithelial cell apoptosis, and the expression of fibrotic genes. The profibrotic effects of M2 macrophage conditioned media are mainly attributed to the polarization cytokines IL-4 and IL-13.
AMERICAN JOURNAL OF PHYSIOLOGY-LUNG CELLULAR AND MOLECULAR PHYSIOLOGY
(2021)
Article
Physiology
Scott J. Denstaedt, Angela C. Bustamante, Michael W. Newstead, Bethany B. Moore, Theodore J. Standiford, Rachel L. Zemans, Benjamin H. Singer
Summary: Millions of sepsis survivors suffer from late pulmonary complications, possibly due to persistent immune reprogramming. This study used a murine sepsis model to show enhanced/primed immune responses in the lungs and identified S100A8/A9 as a potential biomarker and therapeutic target for long-term pulmonary complications. This provides insight into the mechanisms mediating enhanced immune responses in sepsis survivors and paves the way for further investigation.
AMERICAN JOURNAL OF PHYSIOLOGY-LUNG CELLULAR AND MOLECULAR PHYSIOLOGY
(2021)
Article
Physiology
Jay H. Lipinski, Nicole R. Falkowski, Gary B. Huffnagle, John R. Erb-Downward, Robert P. Dickson, Beth B. Moore, David N. O'Dwyer
Summary: The absence of toll-like receptors results in altered lung microbiota with changes in community composition, reduced diversity, and bacterial burden. Co-housing wild-type mice with toll-like receptor-deficient mice for 3 weeks did not significantly affect the composition of the lung microbiome. Toll-like receptor signaling plays a role in shaping lung microbiota.
AMERICAN JOURNAL OF PHYSIOLOGY-LUNG CELLULAR AND MOLECULAR PHYSIOLOGY
(2021)
Article
Medicine, Research & Experimental
Helen Warheit-Niemi, Summer J. Edwards, Shuvasree SenGupta, Carole A. Parent, Xiaofeng Zhou, David N. O'Dwyer, Bethany B. Moore
Summary: This study found that fibrotic mice infected with MRSA showed increased morbidity and mortality compared to nonfibrotic mice. Fibrosis led to a defect in MRSA clearance due to impaired innate immune responses, including neutrophil killing of MRSA and lung macrophage phagocytosis of MRSA.
Article
Biochemistry & Molecular Biology
Elissa M. Hult, Stephen J. Gurczynski, David N. O'Dwyer, Rachel L. Zemans, Andrew Rasky, Yizhuo Wang, Susan Murray, Howard C. Crawford, Bethany B. Moore
Summary: Idiopathic pulmonary fibrosis (IPF) is a progressive and lethal lung disease without known cure. Chronic inflammation and the involvement of HB-EGF have been observed in IPF. This study demonstrates that there is increased expression of HB-EGF in IPF patients and mice with pulmonary fibrosis, and HB-EGF plays a critical role in regulating fibrosis progression.
AMERICAN JOURNAL OF RESPIRATORY CELL AND MOLECULAR BIOLOGY
(2022)
Article
Respiratory System
Bethany B. Moore, Megan N. Ballinger, Natalie N. Bauer, Timothy S. Blackwell, Zea Borok, G. R. Scott Budinger, Blanca Camoretti-Mercado, Serpil C. Erzurum, Blanca E. Himes, Venkateshwar G. Keshamouni, Hrishikesh S. Kulkarni, Rama K. Mallampalli, Thomas J. Mariani, Fernando J. Martinez, Janet E. McCombs, Dawn C. Newcomb, Richard A. Johnston, Michael A. O'Reilly, Y. S. Prakash, Karen M. Ridge, Patricia J. Sime, Anne I. Sperling, Shelia Violette, David S. Wilkes, Melanie Konigshoff
Summary: The American Thoracic Society established an ad hoc committee to identify barriers and opportunities for non-clinically practicing basic and translational scientists to integrate into clinical units. Based on surveys of division chiefs and workshop participants, it was found that hiring Ph.D. scientists into clinical units often resulted in non-tenure track positions without the same support as basic science units. These barriers are primarily financial. The recommendation is for academic medical centers to consider strategies to integrate basic and translational scientists into clinical units in a meaningful way.
ANNALS OF THE AMERICAN THORACIC SOCIETY
(2023)
Article
Medicine, Research & Experimental
Carol A. Wilke, Mathew M. Chadwick, Paul R. Chan, Bethany B. Moore, Xiaofeng Zhou
Review
Immunology
Helen Warheit-Niemi, Elissa M. Hult, Bethany B. Moore
CLINICAL & TRANSLATIONAL IMMUNOLOGY
(2019)