A Novel Bacteriophage Lysin-Human Defensin Fusion Protein Is Effective in Treatment of Clostridioides difficile Infection in Mice.

Abstract:

:Clostridioides difficile is the leading cause of worldwide antibiotics-associated diarrhea. In this study, we report the construction and evaluation of a novel bacteriophage lysin-human defensin fusion protein targeting C. difficile. The fusion protein, designated LHD, is composed of two parts connected by a 3-repeating unit linker "(GGGGS)3": the catalytic domain of a lysin protein from a C. difficile bacteriophage phiC2 (LCD), and the functional domain of a human defensin protein HD5. Lytic assays showed that LHD protein had a potent lytic activity against different types of clinical C. difficile strains, including the epidemic 027, 078, 012, and 087 strains. The minimum inhibitory concentration (MIC) of LHD was 0.78 μg/ml, which was lower than the MIC of the protein LCD (1.56 μg/ml), and the MICs of metronidazole (4 μg/ml) and vancomycin (4 μg/ml). In addition, the LHD protein could lyse C. different strains in different pHs (6.0, 7.0, and 8.0). Evaluation of LHD potency in vivo using mouse model of C. difficile infection (CDI) showed that administration of the LHD protein (twice daily for 7 days) was effective in mitigating the symptoms and reducing the death from CDI. Treatment with LHD also significantly decreased the number of C. difficile spores and the toxin level in feces from the infected mice. Our data suggest that this novel lysin-human defensin fusion protein has a potential on CDI control.

journal_name

Front Microbiol

authors

Peng Z,Wang S,Gide M,Zhu D,Lamabadu Warnakulasuriya Patabendige HM,Li C,Cai J,Sun X

doi

10.3389/fmicb.2018.03234

subject

Has Abstract

pub_date

2019-01-11 00:00:00

pages

3234

issn

1664-302X

journal_volume

9

pub_type

杂志文章
  • Cross-Talk between the Aeromonas hydrophila Type III Secretion System and Lateral Flagella System.

    abstract::Aeromonas hydrophila is responsible for aeromonad septicaemia in fish, and gastroenteritis and wound infections in humans. The type III secretion system (T3SS) is utilized by aeromonads to inject protein effectors directly into host cells. One of the major genetic regulators of the T3SS in several bacterial species is...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2016.01434

    authors: Zhao YH,Shaw JG

    更新日期:2016-09-07 00:00:00

  • Tet(C) Gene Transfer between Chlamydia suis Strains Occurs by Homologous Recombination after Co-infection: Implications for Spread of Tetracycline-Resistance among Chlamydiaceae.

    abstract::Chlamydia suis is a swine pathogen that has also recently been found to cause zoonotic infections of the human eye, pharynx, and gastrointestinal tract. Many strains contain a tetracycline class C gene [tet(C)] cassette that confers tetracycline resistance. The cassette was likely originally acquired by horizontal gen...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2017.00156

    authors: Marti H,Kim H,Joseph SJ,Dojiri S,Read TD,Dean D

    更新日期:2017-02-07 00:00:00

  • Recruitment of Reverse Transcriptase-Cas1 Fusion Proteins by Type VI-A CRISPR-Cas Systems.

    abstract::Type VI CRISPR-Cas systems contain a single effector nuclease (Cas13) that exclusively targets single-stranded RNA. It remains unknown how these systems acquire spacers. It has been suggested that type VI systems with adaptation modules can acquire spacers from RNA bacteriophages, but sequence similarities suggest tha...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2019.02160

    authors: Toro N,Mestre MR,Martínez-Abarca F,González-Delgado A

    更新日期:2019-09-13 00:00:00

  • Identification, Functional Characterization, and Regulon Prediction of the Zinc Uptake Regulator (zur) of Bacillus anthracis - An Insight Into the Zinc Homeostasis of the Pathogen.

    abstract::Zinc has an abounding occurrence in the prokaryotes and plays paramount roles including catalytic, structural, and regulatory. Zinc uptake regulator (Zur), a Fur family transcriptional regulator, is connoted in maintaining zinc homeostasis in the pathogenic bacteria by binding to zinc and regulating the genes involved...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2018.03314

    authors: Kandari D,Gopalani M,Gupta M,Joshi H,Bhatnagar S,Bhatnagar R

    更新日期:2019-01-11 00:00:00

  • Importance of Promyelocytic Leukema Protein (PML) for Kaposi's Sarcoma-Associated Herpesvirus Lytic Replication.

    abstract::Many DNA virus replication-related proteins are associated with promyelocytic leukemia protein (PML), a component of nuclear domain 10 (ND10), which has been investigated for its potential involvement in viral replication. In the case of Kaposi's sarcoma-associated herpesvirus (KSHV) lytic gene products, K8 (K-bZIP), ...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2018.02324

    authors: Hossain MG,Ohsaki E,Honda T,Ueda K

    更新日期:2018-10-08 00:00:00

  • The contribution of Escherichia coli from human and animal sources to the integron gene pool in coastal waters.

    abstract::To understand the contribution of animal- and human-derived fecal pollution sources in shaping integron prevalence and diversity in beach waters, 414 Escherichia coli strains were collected from beach waters (BW, n = 166), seagull feces (SF, n = 179), and wastewaters (WW, n = 69), on the World Biosphere Reserve of the...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2014.00419

    authors: Moura A,Araújo S,Alves MS,Henriques I,Pereira A,Correia AC

    更新日期:2014-08-12 00:00:00

  • SecA is required for membrane targeting of the cell division protein DivIVA in vivo.

    abstract::The conserved protein DivIVA is involved in different morphogenetic processes in Gram-positive bacteria. In Bacillus subtilis, the protein localizes to the cell division site and cell poles, and functions as a scaffold for proteins that regulate division site selection, and for proteins that are required for sporulati...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2014.00058

    authors: Halbedel S,Kawai M,Breitling R,Hamoen LW

    更新日期:2014-02-14 00:00:00

  • Diversity of D-Amino Acid Utilizing Bacteria From Kongsfjorden, Arctic and the Metabolic Pathways for Seven D-Amino Acids.

    abstract::D-amino acids (DAAs) are an important component of the refractory dissolved organic matter pool in the ocean. Microbes play a vital role in promoting the recycling of DAAs in the ocean. However, the diversity of marine DAA-utilizing bacteria and how they metabolize DAAs are seldom studied. Here, by enrichment culture ...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2019.02983

    authors: Yu Y,Yang J,Zheng LY,Sheng Q,Li CY,Wang M,Zhang XY,McMinn A,Zhang YZ,Song XY,Chen XL

    更新日期:2020-01-10 00:00:00

  • A Homeobox Transcription Factor UvHOX2 Regulates Chlamydospore Formation, Conidiogenesis, and Pathogenicity in Ustilaginoidea virens.

    abstract::Rice false smut fungus (teleomorph: Villosiclava virens; anamorph: Ustilaginoidea virens) can generate chlamydospores and survive winter under field conditions. The chlamydospore is considered as an important infection source of the disease. However, little is known about the regulatory mechanism of the chlamydospore ...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2019.01071

    authors: Yu J,Yu M,Song T,Cao H,Pan X,Yong M,Qi Z,Du Y,Zhang R,Yin X,Liu Y

    更新日期:2019-06-20 00:00:00

  • Characterization of Novel Reassortant Influenza A (H5N2) Viruses Isolated from Poultry in Eastern China, 2015.

    abstract::Recently, novel variants of H5 highly pathogenic avian influenza viruses (AIVs) have been frequently isolated from poultry and wild birds in Asia, Europe and North America. Live poultry markets (LPMs) play an important role in the dissemination of influenza viruses. Four H5N2 AIVs were isolated from poultry during sur...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2017.00741

    authors: Wu H,Lu R,Peng X,Peng X,Cheng L,Liu F,Wu N

    更新日期:2017-04-25 00:00:00

  • Identification of Genes Essential for Antibiotic-Induced Up-Regulation of Plasmid-Transfer-Genes in Cephalosporin Resistant Escherichia coli.

    abstract::Bacterial conjugation is one of the most important mechanisms for spread of antibiotic resistance among bacteria. We have previously demonstrated that cefotaxime (CTX) exposure up-regulates expression of Type-IV conjugation transfer genes, and that this leads to increased transfer of a blaCTX-M-1 encoding IncI1 resist...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2019.02203

    authors: Liu G,Olsen JE,Thomsen LE

    更新日期:2019-09-24 00:00:00

  • Interactions Between Thiamethoxam and Deformed Wing Virus Can Drastically Impair Flight Behavior of Honey Bees.

    abstract::Exposure to multiple stress factors is believed to contribute to honey bee colony decline. However, little is known about how co-exposure to stress factors can alter the survival and behavior of free-living honey bees in colony conditions. We therefore studied the potential interaction between a neonicotinoid pesticid...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2020.00766

    authors: Coulon M,Dalmon A,Di Prisco G,Prado A,Arban F,Dubois E,Ribière-Chabert M,Alaux C,Thiéry R,Le Conte Y

    更新日期:2020-04-30 00:00:00

  • Bioactive Molecule from Streptomyces sp. Mitigates MDR Klebsiella pneumoniae in Zebrafish Infection Model.

    abstract::The emergence and spread of multi-drug resistant (MDR) especially carbapenem-resistant Klebsiella pneumoniae is a major emerging threat to public health, leading to excess in mortality rate as high as 50-86%. MDR K. pneumoniae manifests all broad mechanisms of drug resistance, hence development of new drugs to treat M...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2017.00614

    authors: Cheepurupalli L,Raman T,Rathore SS,Ramakrishnan J

    更新日期:2017-04-12 00:00:00

  • DNA Delivery and Genomic Integration into Mammalian Target Cells through Type IV A and B Secretion Systems of Human Pathogens.

    abstract::We explore the potential of bacterial secretion systems as tools for genomic modification of human cells. We previously showed that foreign DNA can be introduced into human cells through the Type IV A secretion system of the human pathogen Bartonella henselae. Moreover, the DNA is delivered covalently attached to the ...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2017.01503

    authors: Guzmán-Herrador DL,Steiner S,Alperi A,González-Prieto C,Roy CR,Llosa M

    更新日期:2017-08-22 00:00:00

  • A Burkholderia thailandensis DedA Family Membrane Protein Is Required for Proton Motive Force Dependent Lipid A Modification.

    abstract::The DedA family is a conserved membrane protein family found in most organisms. A Burkholderia thailandensis DedA family protein, named DbcA, is required for high-level colistin (polymyxin E) resistance, but the mechanism awaits elucidation. Modification of lipopolysaccharide lipid A with the cationic sugar aminoarabi...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2020.618389

    authors: Panta PR,Doerrler WT

    更新日期:2021-01-12 00:00:00

  • Keystone Microbiomes Revealed by 14 Years of Field Restoration of the Degraded Agricultural Soil Under Distinct Vegetation Scenarios.

    abstract::Agricultural intensification accelerates the degradation of cropland, and restoration has been managed by changing its vegetation. However, the keystone microbiome that drives the decomposition of plant-associated organic matter in the restoration is poorly understood. In this study, we established a 14-year field res...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2020.01915

    authors: Zhang Z,Han X,Yan J,Zou W,Wang E,Lu X,Chen X

    更新日期:2020-08-18 00:00:00

  • Inhibition of Influenza Virus Infection by Lentinus edodes Mycelia Extract Through Its Direct Action and Immunopotentiating Activity.

    abstract::Lentinula edodes mycelia (LEM) solid culture extracts contain many bioactive compounds with diverse pharmacological activities such as antitumor, antiviral, and immunopotentiating effects. In this study, we examined the anti-influenza virus activity of LEM in vitro and in vivo. LEM directly inhibited influenza virus g...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2018.01164

    authors: Kuroki T,Lee S,Hirohama M,Taku T,Kumakura M,Haruyama T,Nagata K,Kawaguchi A

    更新日期:2018-05-29 00:00:00

  • Transcriptome analyses to investigate symbiotic relationships between marine protists.

    abstract::Rhizaria are an important component of oceanic plankton communities worldwide. A number of species harbor eukaryotic microalgal symbionts, which are horizontally acquired in the environment at each generation. Although these photosymbioses are determinant for Rhizaria ability to thrive in oceanic ecosystems, the mecha...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2015.00098

    authors: Balzano S,Corre E,Decelle J,Sierra R,Wincker P,Da Silva C,Poulain J,Pawlowski J,Not F

    更新日期:2015-03-17 00:00:00

  • Characterization of Two Novel Bacteriophages Infecting Multidrug-Resistant (MDR) Acinetobacter baumannii and Evaluation of Their Therapeutic Efficacy in Vivo.

    abstract::Acinetobacter baumannii is emerging as a challenging nosocomial pathogen due to its rapid evolution of antibiotic resistance. We report characterization of two novel bacteriophages, PBAB08 and PBAB25, infecting clinically isolated, multidrug-resistant (MDR) A. baumannii strains. Both phages belonged to Myoviridae of C...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2018.00696

    authors: Cha K,Oh HK,Jang JY,Jo Y,Kim WK,Ha GU,Ko KS,Myung H

    更新日期:2018-04-10 00:00:00

  • Chemical Dispersant Enhances Microbial Exopolymer (EPS) Production and Formation of Marine Oil/Dispersant Snow in Surface Waters of the Subarctic Northeast Atlantic.

    abstract::A notable feature of the Deepwater Horizon oil spill was the unprecedented formation of marine oil snow (MOS) that was observed in large quantities floating on the sea surface and that subsequently sedimented to the seafloor. Whilst the physical and chemical processes involved in MOS formation remain unclear, some stu...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2019.00553

    authors: Suja LD,Chen X,Summers S,Paterson DM,Gutierrez T

    更新日期:2019-03-20 00:00:00

  • Molecular Detection of Azole-Resistant Aspergillus fumigatus in Clinical Samples.

    abstract::Aspergillus diseases are often caused by Aspergillus fumigatus. Azoles are the mainstay of therapy, but the management of aspergillosis is hampered by the emergence of azole resistance. Rapid detection of azole resistance might benefit treatment outcome by early treatment modifications. However, the yield of fungal cu...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章,评审

    doi:10.3389/fmicb.2018.00515

    authors: Buil JB,Zoll J,Verweij PE,Melchers WJG

    更新日期:2018-03-21 00:00:00

  • Immune Protection of Rhoptry Protein 21 (ROP21) of Toxoplasma gondii as a DNA Vaccine Against Toxoplasmosis.

    abstract::Toxoplasma gondii rhoptry proteins (TgROPs) are the major targets as key molecules for immunodiagnosis as well as immunoprophylaxis because of their initial presentation to the host immune system. In this work, it was aimed at evaluating the protection effect of TgROP21 DNA vaccine on experimental mice subjected to T....

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2018.00909

    authors: Zhang Z,Li Y,Wang M,Xie Q,Li P,Zuo S,Kong L,Wang C,Wang S

    更新日期:2018-05-08 00:00:00

  • Description of Chloramphenicol Resistant Kineococcus rubinsiae sp. nov. Isolated From a Spacecraft Assembly Facility.

    abstract::A Gram-positive, coccoid, motile, aerobic bacterium, designated strain B12T was isolated from a Jet Propulsion Laboratory spacecraft assembly cleanroom, Pasadena, CA, United States. Strain B12T was resistant to chloramphenicol (100 μg/mL), and is a relatively slow grower (3-5 days optimal). Strain B12T was found to gr...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2020.01957

    authors: Mhatre S,Singh NK,Wood JM,Parker CW,Pukall R,Verbarg S,Tindall BJ,Neumann-Schaal M,Venkateswaran K

    更新日期:2020-08-18 00:00:00

  • Design of Primers for Evaluation of Lactic Acid Bacteria Populations in Complex Biological Samples.

    abstract::Lactic acid bacteria (LAB) are important for human health. However, the relative abundance of LAB in complex samples, such as fecal samples, is low and their presence and diversity (at the species level) is understudied. Therefore, we designed LAB-specific primer pairs based on 16S rRNA gene consensus sequences from 4...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2018.02045

    authors: Hou Q,Bai X,Li W,Gao X,Zhang F,Sun Z,Zhang H

    更新日期:2018-08-31 00:00:00

  • Past and Current Perspectives in Modeling Bacteria and Blood-Brain Barrier Interactions.

    abstract::The central nervous system (CNS) barriers are highly specialized cellular barriers that promote brain homeostasis while restricting pathogen and toxin entry. The primary cellular constituent regulating pathogen entry in most of these brain barriers is the brain endothelial cell (BEC) that exhibits properties that allo...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2019.01336

    authors: Kim BJ,Shusta EV,Doran KS

    更新日期:2019-06-13 00:00:00

  • Genomic Analysis of Carbapenem-Resistant Acinetobacter baumannii Isolates Belonging to Major Endemic Clones in South America.

    abstract::Carbapenem-resistant Acinetobacter baumannii (CRAB) are emerging worldwide. In South America, clinical isolates presenting such a phenotype usually do not belong to the globally distributed international clone 2 (IC2). The majority of these isolates are also resistant to multiple other antimicrobials and are often des...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2020.584603

    authors: Nodari CS,Cayô R,Streling AP,Lei F,Wille J,Almeida MS,de Paula AI,Pignatari ACC,Seifert H,Higgins PG,Gales AC

    更新日期:2020-11-30 00:00:00

  • Impact of Sample Preservation and Manipulation on Insect Gut Microbiome Profiling. A Test Case With Fruit Flies (Diptera, Tephritidae).

    abstract::High-throughput sequencing (HTS) techniques are of great value for the investigation of microbial communities, and have been extensively used to study the gut microbiome. While most studies focus on the human gut, many others have investigated insects. However, because of the rapid spread of HTS techniques, a lot of v...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2019.02833

    authors: De Cock M,Virgilio M,Vandamme P,Augustinos A,Bourtzis K,Willems A,De Meyer M

    更新日期:2019-12-13 00:00:00

  • Mammalian MicroRNAs: Post-Transcriptional Gene Regulation in RNA Virus Infection and Therapeutic Applications.

    abstract::RNA silencing mediated by microRNAs (miRNAs) is a recently discovered gene regulatory mechanism involved in various aspects of biology, such as development, cell differentiation and proliferation, and innate immunity against viral infections. miRNAs, which are a class of small (21-25 nucleotides) RNAs, target messenge...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2010.00108

    authors: Tsunetsugu-Yokota Y,Yamamoto T

    更新日期:2010-10-13 00:00:00

  • Shifts in methanogenic community composition and methane fluxes along the degradation of discontinuous permafrost.

    abstract::The response of methanogens to thawing permafrost is an important factor for the global greenhouse gas budget. We tracked methanogenic community structure, activity, and abundance along the degradation of sub-Arctic palsa peatland permafrost. We observed the development of pronounced methane production, release, and a...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2015.00356

    authors: Liebner S,Ganzert L,Kiss A,Yang S,Wagner D,Svenning MM

    更新日期:2015-05-12 00:00:00

  • Comparative Genomics of Completely Sequenced Lactobacillus helveticus Genomes Provides Insights into Strain-Specific Genes and Resolves Metagenomics Data Down to the Strain Level.

    abstract::Although complete genome sequences hold particular value for an accurate description of core genomes, the identification of strain-specific genes, and as the optimal basis for functional genomics studies, they are still largely underrepresented in public repositories. Based on an assessment of the genome assembly comp...

    journal_title:Frontiers in microbiology

    pub_type: 杂志文章

    doi:10.3389/fmicb.2018.00063

    authors: Schmid M,Muri J,Melidis D,Varadarajan AR,Somerville V,Wicki A,Moser A,Bourqui M,Wenzel C,Eugster-Meier E,Frey JE,Irmler S,Ahrens CH

    更新日期:2018-01-30 00:00:00