Article
Multidisciplinary Sciences
Eden Mannix-Fisher, Samantha McLean
Summary: The study investigates the therapeutic effects of silver salts, particularly silver acetate, on bacterial infections. The results demonstrate selective toxicity of silver acetate for bacterial pathogens, leading to improved survival rates in infection treatment. However, well-defined doses of the antimicrobial are necessary to achieve effective treatment.
Article
Microbiology
Mahmoud A. F. Khalil, Fatma A. Ahmed, Ahmed F. Elkhateeb, Eman E. Mahmoud, Mona Ahmed, Randa Ahmed, Amal Hosni, Saad Alghamdi, Ahmed Kabrah, Anas S. Dablool, Helal F. Hetta, Sawsan S. Moawad, Enas Mamdouh Hefzy
Summary: A. baumannii is a common pathogen causing pneumonia in ICU patients, with strong biofilm formation serving as a key virulence factor. The presence of carbapenemase-encoding genes may influence its resistance and pathogenicity.
Article
Multidisciplinary Sciences
Jasmine Martinez, Chelsea Razo-Gutierrez, Casin Le, Robert Courville, Camila Pimentel, Christine Liu, Sammie E. Fung, Marisel R. Tuttobene, Kimberly Phan, Alejandro J. Vila, Parvin Shahrestani, Veronica Jimenez, Marcelo E. Tolmasky, Scott A. Becka, Krisztina M. Papp-Wallace, Robert A. Bonomo, Alfonso Soler-Bistue, Rodrigo Sieira, Maria Soledad Ramirez
Summary: This study investigates the genetic changes and virulence factor expression of Acinetobacter baumannii in the cerebrospinal fluid (CSF) environment, showing its adaptability and survival capabilities. While a highly virulent strain showed no transcriptome changes in the presence of CSF, a low-virulence isolate exhibited significant differences in gene expression. Exposure to CSF induced increased expression of virulence factors without promoting bacterial growth, but rather increasing the expression of genes associated with transcription, translation, and ATP synthesis.
SCIENTIFIC REPORTS
(2021)
Article
Microbiology
Laura Leukert, Manuela Tietgen, Felix F. Krause, Tilman G. Schultze, Dominik C. Fuhrmann, Charline Debruyne, Suzana P. Salcedo, Alexander Visekruna, Llka Wittig, Stephan Goettig
Summary: This study found that Acinetobacter baumannii can inhibit the mitochondrial function of human host cells and infect them through mechanisms such as perturbation of oxidative phosphorylation, disruption of mitochondrial ribosomes, and interference with mitochondrial metabolic pathways, leading to serious nosocomial infections.
MICROBIOLOGY SPECTRUM
(2023)
Article
Microbiology
Brenda Landvoigt Schmitt, Bruna Ferreira Leal, Mariana Leyser, Muriel Primon de Barros, Danielle Silva Trentin, Carlos Alexandre Sanchez Ferreira, Silvia Dias de Oliveira
Summary: The mechanism of antimicrobial resistance and persistence ability of Acinetobacter baumannii may be associated with the outer membrane proteins OmpW and OmpA, highlighting them as potential targets for drug development against A. baumannii persisters.
Review
Microbiology
Ye Tao, Luminita Duma, Yannick Rossez
Summary: The invertebrate model Galleria mellonella is a valuable tool for studying the pathogenesis mechanisms of multidrug resistant Acinetobacter baumannii, offering promising insights for clinical treatments.
Article
Oncology
Adenilson de Souza da Fonseca, Andre Luiz Mencalha, Flavia de Paoli
Summary: A. baumannii is a pathogen of global importance with resistance to various antibiotics. Antimicrobial photodynamic therapy is considered a promising approach to overcome bacterial resistance, but further studies are needed to evaluate its effectiveness.
PHOTODIAGNOSIS AND PHOTODYNAMIC THERAPY
(2021)
Article
Microbiology
Hua Zhou, Michael J. Gebhardt, Daniel M. Czyz, Yake Yao, Howard A. Shuman
Summary: The study identified the key roles of gigA and gigB genes in both growth and virulence traits of Acinetobacter baumannii strain ATCC 17978, while being dispensable for other stress-resistance survival phenotypes, including aminoglycoside resistance. The deletion of gigA/gigB resulted in growth defects in laboratory medium, replication defects within murine macrophages, and an inability to kill Galleria mellonella larvae, demonstrating the importance of these genes for both bacterial growth and pathogenicity. Additionally, the loss of ptsP restored the phenotypes of the gigA/gigB mutant to that of the wild-type, highlighting the interplay between these genetic factors in stress response of the pathogen.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Chemistry, Analytical
Ying Chen, Honglin Yang, Shuai Luo, Lin Wang, Shuguang Lu, Zhifeng Fu
Summary: As a multidrug-resistant pathogen, Acinetobacter baumannii is a common nosocomial bacteria. Researchers have developed an engineering protein called ETFP Gp50 as a high-performance recognition probe for wide-spectrum detection and efficient diagnosis of A. baumannii. The protein showed 100% recognition rate and can be used for quantification of A. baumannii in complex sample matrix with high flexibility and low false-negative rate.
ANALYTICAL CHEMISTRY
(2022)
Article
Genetics & Heredity
Mohammad Hamidian, Ram P. Maharjan, Daniel N. Farrugia, Natasha N. Delgado, Hue Dinh, Francesca L. Short, Xenia Kostoulias, Anton Y. Peleg, Ian T. Paulsen, Amy K. Cain
Summary: This study reports the complete genome sequences of six diverse environmental strains of A. baumannii and reveals their similar virulence potential to nosocomial strains but greater sensitivity to antibiotics.
MICROBIAL GENOMICS
(2022)
Article
Multidisciplinary Sciences
Li Huang, Siyi Huang, Lingli Jiang, Jingjie Tan, Xueping Yan, Chunmei Gou, Xinchong Chen, Lijuan Xiang, Dali Wang, Guangtao Huang, Yixin Zhang, Chengliang Deng
Summary: Acinetobacter baumannii is a challenging conditional pathogen causing various infectious diseases in humans. Phage therapy has been approved as an alternative strategy for antibiotic-resistant A. baumannii infections. In this study, 22 A. baumannii bacteriophages were isolated and a phage named Abp95 with a wide host range and potential for phage therapy was identified. Abp95 was found to accelerate wound healing and clear infections of multidrug-resistant A. baumannii.
SCIENTIFIC REPORTS
(2023)
Article
Infectious Diseases
Livia M. A. Figueiredo-Godoi, Maira T. Garcia, Juliana G. Pinto, Juliana Ferreira-Strixino, Eliseu Gabriel Faustino, Lara Luise Castro Pedroso, Juliana C. Junqueira
Summary: This study evaluated the efficacy of a new photosensitizer derivative called Fotoenticine-FTC in antimicrobial photodynamic therapy (aPDT) against Acinetobacter baumannii. The results showed that methylene blue (MB) had greater antimicrobial activity compared to FTC, inhibiting the growth of bacterial cells in planktonic cultures, biofilms, and burn infections in Galleria mellonella.
Article
Plant Sciences
Heather L. Winter, Laura Flores-Bocanegra, Kristof B. Cank, William J. Crandall, Fridah C. Rotich, Madeline N. Tillman, Daniel A. Todd, Tyler N. Graf, Huzefa A. Raja, Cedric J. Pearce, Nicholas H. Oberlies, Nadja B. Cech
Summary: Due to resistance, Acinetobacter baumannii is a top priority for drug development according to the World Health Organization. A library of extracts from 2500 fungi was screened for antimicrobial activity against a drug-resistant strain of A. baumannii, and an extract from the fungus Tolypocladium sp. was found to be the most potent. The extract produced pyridoxatin, which may serve as a lead compound for the development of antimicrobials against A. baumannii.
PHYTOCHEMISTRY LETTERS
(2023)
Article
Microbiology
Roman B. Gorodnichev, Nikolay V. Volozhantsev, Valentina M. Krasilnikova, Ivan N. Bodoev, Maria A. Kornienko, Nikita S. Kuptsov, Anastasia Popova, Galina Makarenko, Alexander Manolov, Pavel Slukin, Dmitry A. Bespiatykh, Vladimir V. Verevkin, Egor A. Denisenko, Eugene E. Kulikov, Vladimir A. Veselovsky, Maja Malakhova, Ivan A. Dyatlov, Elena N. Ilina, Egor A. Shitikov
Summary: The study isolated and characterized three virulent bacteriophages that specifically infect and lyse multidrug-resistant Klebsiella pneumoniae with K23 capsule type. These phages contained receptor-binding proteins with polysaccharide depolymerase enzymatic activity, demonstrating potential for antimicrobial therapy.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Infectious Diseases
T. Cebrero-Cangueiro, P. Nordmann, M. Carretero-Ledesma, J. Pachon, M. E. Pachon-Ibanez
Summary: The study demonstrated that meropenem was more effective than imipenem in treating carbapenem-resistant Acinetobacter baumannii infections in mice. The combination of meropenem and imipenem significantly improved the clearance of CRAb in the spleen. Dual carbapenem combination showed better efficacy in treating mice infected with carbapenemase-producing strains.
JOURNAL OF ANTIMICROBIAL CHEMOTHERAPY
(2021)
Review
Biochemical Research Methods
Elzbieta Cecerska-Heryc, Bartosz Ronkowski, Rafal Heryc, Natalia Serwin, Bartlomiej Grygorcewicz, Marta Roszak, Katarzyna Galant, Barbara Dolegowska
Summary: Proteomic and lipidomic studies have identified certain proteins and lipids that can be used for the diagnosis and treatment monitoring of inflammatory bowel disease (IBD). Analysis of protein and lipid profiles can improve the availability and use of diagnostic markers, enhance understanding of the disease mechanisms, aid in monitoring patient health, and improve therapeutic approaches.
PROTEOMICS CLINICAL APPLICATIONS
(2023)
Article
Medicine, Research & Experimental
Bartosz Wojciuk, Aleksandra Bogucka, Paulina Czaplewska, Patrycja Okulewicz, Iwona Wojciechowska-Koszko, Kazimierz Ciechanowski, Joanna Kabat-Koperska
Summary: Kidney transplantation is the preferred treatment for patients with end-stage kidney disease, but the understanding of chronic kidney allograft injury is limited. Pregnancy is more common after kidney transplantation than during dialysis, but comprehensive studies on the impact of immunosuppressive regimens on pregnancy are challenging due to ethical issues. This study investigated the proteomic status of lymphocytes from pregnant rats under immunosuppressive treatment and found that these lymphocytes exhibited sustained proinflammatory status with decreased ability to regulate translation, potentially affecting pregnancy and immunity.
CTS-CLINICAL AND TRANSLATIONAL SCIENCE
(2023)
Article
Environmental Sciences
Mikolaj Dziurzynski, Adrian Gorecki, Julia Pawlowska, Lukasz Istel, Przemyslaw Decewicz, Piotr Golec, Michal Styczynski, Krzysztof Poszytek, Anna Rokowska, Dorota Gorniak, Lukasz Dziewit
Summary: Arctic soils have unique microbial ecosystems and provide opportunities for studying microbial ecology and evolution. A combination of culture-dependent and culture-independent approaches revealed a cultivation bias in studies of cold-active microorganisms. A novel protocol combining a culture-dependent approach, metabarcoding, next-generation sequencing, and genomic data reuse was developed to obtain psychrotolerant, multi-metal-resistant strains with potential biotechnological applications.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Microbiology
Maciej Konopacki, Joanna Jablonska, Kamila Dubrowska, Adrian Augustyniak, Bartlomiej Grygorcewicz, Marta Glizniewicz, Emil Wroblewski, Marian Kordas, Barbara Dolegowska, Rafal Rakoczy
Summary: Hydrodynamic conditions play a critical role in bioprocessing, affecting the availability of oxygen for cultured cells. This study characterized parameters such as mixing time, power consumption, and mass transfer in a 2 L bioreactor, and tested the hydrodynamic impact on a selected bioprocess. The results showed that high oxygen mass transfer and intensive mixing led to the highest pyocyanin production, while moderate oxygen mass transfer and less intense mixing resulted in maximal efficiency of rhamnolipid production.
Review
Cell Biology
Elzbieta Cecerska-Heryc, Maja Pekala, Natalia Serwin, Marta Glizniewicz, Bartlomiej Grygorcewicz, Anna Michalczyk, Rafal Heryc, Marta Budkowska, Barbara Dolegowska
Summary: Stem cells have shown great potential in treating neurological diseases such as MS, ALS, AD, PD, and HD. Different types of stem cells have demonstrated effectiveness in slowing down disease progression and improving symptoms. However, more research and refinement are needed to optimize the therapy's effectiveness in humans.
CELLULAR AND MOLECULAR NEUROBIOLOGY
(2023)
Article
Pharmacology & Pharmacy
Rafal Rakoczy, Anna Nowak, Maciej Konopacki, Marian Kordas, Lukasz Kucharski, Paula Ossowicz-Rupniewska
Summary: The paper presents a method of increasing the permeability of various active substances through the skin by using a rotating magnetic field. The study used 50 Hz RMF and various active pharmaceutical ingredients (APIs) to investigate the effects. It was found that exposure to RMF increased drug transport through the skin, and the release profiles varied depending on the active substance used.
EUROPEAN JOURNAL OF PHARMACEUTICS AND BIOPHARMACEUTICS
(2023)
Article
Biochemistry & Molecular Biology
Magdalena Chareza, Katarzyna Przygrodzka, Anna Zywicka, Bartlomiej Grygorcewicz, Peter Sobolewski, Sylwia Mozia, Marcin Smiglak, Radoslaw Drozd
Summary: Bacterial biofilms are a major problem in the wound healing process due to antibiotic resistance mechanisms. This study investigated the therapeutic properties of alginate lyase (AlgL) immobilised on BC membranes for protecting wounds from Pseudomonas aeruginosa infection. The AlgL immobilisation significantly reduced the amount of polysaccharides in the biofilm and showed synergism with gentamicin in killing bacterial cells.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Microbiology
Monika Adamczyk-Poplawska, Piotr Golec, Andrzej Piekarowicz, Agnieszka Kwiatek
Summary: Bacteriophages are extensively studied for their potential as a cure for bacterial infections, but phage therapy for gonococcal infections has not been tested yet. However, gonococcal genomes contain prophages that could be used in developing vaccines and producing enzymes with anti-gonococcal activity.
CRITICAL REVIEWS IN MICROBIOLOGY
(2023)
Article
Pharmacology & Pharmacy
Paula Ossowicz-Rupniewska, Anna Nowak, Maciej Konopacki, Marian Kordas, Lukasz Kucharski, Joanna Klebeko, Ewelina Swiatek, Rafal Rakoczy
Summary: This study presents a method of increasing the permeability of ibuprofen through the skin using a rotating magnetic field (RMF). Regardless of the compound tested, a significant increase in drug transport through the skin was observed under the influence of 50 Hz RMF. The use of RMF increased the permeability of ibuprofen from 4 to 244 times, with the greatest differences observed for unmodified ibuprofen.
EUROPEAN JOURNAL OF PHARMACEUTICS AND BIOPHARMACEUTICS
(2023)
Article
Microbiology
Bartlomiej Grygorcewicz, Marta Glizniewicz, Patrycja Olszewska, Dominika Milek, Artur Czajkowski, Natalia Serwin, Elzbieta Cecerska-Heryc, Rafal Rakoczy
Summary: This study explores the application of Response Surface Methodology (RSM) in optimizing the antibiofilm activity of phage-antibiotic combinations. By analyzing data from biofilm challenge assays using RSM, this method allows for the selection of optimal points of antibiofilm activity and provides quantifiable mathematical representations. The results suggest that synergistic effects can be achieved by judiciously combining antibiotics with bacteriophages, leading to a reduction in biofilm biomass of up to 80%, depending on the antibiotic used.
Review
Immunology
Bartlomiej Grygorcewicz, Marta Glizniewicz, Joanna Jablonska, Adrian Augustyniak, Patrycja Olszewska, Bartosz Wojciuk, Dominika Milek, Natalia Serwin, Artur Czajkowski, Elzbieta Cecerska-Heryc, Rafal Rakoczy, Aneta Cymbaluk-Ploska
Summary: This article provides a quick outlook on using bacteriophages as an alternative or adjunct therapy for urinary tract infections (UTIs). It summarizes the current understanding of bacteriophage biology, the challenges in developing phage-based therapies, and the promising results from case reports and clinical trials. The potential of phage therapy in combating antibiotic-resistant UTIs is also highlighted.
Article
Nanoscience & Nanotechnology
Kornelia Bobrowska, Kamila Sadowska, Krzysztof Stolarczyk, Marta Przesniak-Welenc, Piotr Golec, Renata Bilewicz
Summary: In this study, hybrid nanoflowers based on bovine serum albumin (BSA) and hydroxyapatite (HA) were successfully synthesized and characterized. The nanoflowers were able to embed ciprofloxacin and release it in a controlled manner. Additionally, the nanoflowers exhibited antibacterial activity against Staphylococcus aureus and Pseudomonas aeruginosa.
INTERNATIONAL JOURNAL OF NANOMEDICINE
(2023)