Abstract:
:Although iron is essential for bacteria, the nutrient presents problems of toxicity and solubility. Bacteria circumvent these problems with the aid of iron storage proteins where Fe3+ is deposited and, when necessary, mobilized as Fe2+ for metabolic requirements. In Pseudomonas aeruginosa, Fe3+ is compartmentalized in bacterioferritin (BfrB), and its mobilization as Fe2+ requires specific binding of a ferredoxin (Bfd) to reduce the stored Fe3+. Blocking the BfrB-Bfd complex leads to irreversible iron accumulation in BfrB and cytosolic iron deprivation. Consequently, given the intracellular iron sufficiency requirement for biofilm development, we hypothesized that blocking the BfrB-Bfd interaction in P. aeruginosa would impair biofilm development. Our results show that planktonic and biofilm-embedded cells where the BfrB-Bfd complex is blocked exhibit cytosolic iron deficiency, and poorly developed biofilms, even in iron-sufficient culture conditions. These results underscore inhibition of the BfrB-Bfd complex as a rational target to dysregulate iron homeostasis and possibly control biofilms.
journal_name
ACS Infect Disjournal_title
ACS infectious diseasesauthors
Soldano A,Yao H,Chandler JR,Rivera Mdoi
10.1021/acsinfecdis.9b00398subject
Has Abstractpub_date
2020-03-13 00:00:00pages
447-458issue
3issn
2373-8227journal_volume
6pub_type
杂志文章abstract::Dysentery is a major health threat that dramatically impacts childhood morbidity and mortality in developing countries. Various pathogenic agents cause dysentery, such as Shigella spp. and Escherichia coli, which are very closely related if not identical species. Sensitive and precise detection and identification of t...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.9b00199
更新日期:2019-11-08 00:00:00
abstract::Individuals who exhibit long-term HIV suppression and CD4 T-cell preservation without antiretroviral therapy are of great interest for HIV research. There is currently no robust method for rapid identification of these "HIV controller" subjects; however, HLA-B*57 (human leukocyte antigen (major histocompatibility comp...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.7b00042
更新日期:2017-12-08 00:00:00
abstract::The Burkholderia cepacia complex is a group of Gram-negative bacteria that are opportunistic pathogens in immunocompromised individuals, such as those with cystic fibrosis (CF) or chronic granulomatous disease (CGD). Burkholderia are intrinsically resistant to many antibiotics and the lack of antibiotic development ne...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.7b00235
更新日期:2018-05-11 00:00:00
abstract::The maintenance of deoxyribonucleotide triphosphate (dNTP) homeostasis through synthesis and degradation is critical for accurate genomic and mitochondrial DNA replication fidelity. Trypanosoma brucei makes use of both the salvage and de novo pathways for the provision of pyrimidine dNTPs. In this respect, the sterile...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.0c00551
更新日期:2021-01-08 00:00:00
abstract::Coronaviruses first garnered widespread attention in 2002 when the severe acute respiratory syndrome coronavirus (SARS-CoV) emerged from bats in China and rapidly spread in human populations. Since then, Middle East respiratory syndrome coronavirus (MERS-CoV) emerged and still actively infects humans. The recent SARS-...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.0c00491
更新日期:2020-10-06 00:00:00
abstract::To explore the possibility of constrained peptides to target Plasmodium-infected cells, we designed a J domain mimetic derived from Plasmodium falciparum calcium-dependent protein kinase 1 ( PfCDPK1) as a strategy to disrupt J domain binding and inhibit PfCDPK1 activity. The J domain disruptor (JDD) peptide was confor...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.8b00347
更新日期:2019-04-12 00:00:00
abstract::Violacein is a tryptophan-derived purple pigment produced by environmental bacteria, which displays multiple biological activities, including strong inhibition of Gram-positive pathogens. Here, we applied a combination of experimental approaches to identify the mechanism by which violacein kills Gram-positive bacteria...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.8b00245
更新日期:2019-04-12 00:00:00
abstract::Photodynamic inactivation (PDI) protocols using photoactive metallated porphyrin-doped conjugated polymer nanoparticles (CPNs) and blue light were developed to eliminate multidrug-resistant pathogens. CPNs-PDI protocols using varying particle concentrations and irradiation doses were tested against nine pathogenic bac...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.0c00268
更新日期:2020-08-14 00:00:00
abstract::We describe cross-reactive human antibodies recognizing influenza B viruses spanning nearly 80 years of antigenic drift. Structures show that they engage the receptor-binding site (RBS) of the viral hemagglutinin with strong similarities to their influenza A counterparts, despite structural differences between the RBS...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.0c00726
更新日期:2021-01-08 00:00:00
abstract::In the field of Parkinson's disease (PD) research, leucine-rich repeat kinase 2 (LRRK2) remains one of the most enigmatic kinases. LRRK2 pathogenic mutations result in increased kinase activity, making LRRK2 an attractive therapeutic target for PD. For over 10 years, the identification of a bona fide substrate and a p...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.9b00051
更新日期:2019-06-14 00:00:00
abstract::Quaternary ammonium compounds (QACs) have historically served as a first line of defense against pathogenic bacteria. Recent reports have shown that QAC resistance is increasing at an alarming rate, especially among methicillin-resistant Staphylococcus aureus (MRSA), and preliminary work has suggested that the number ...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.5b00032
更新日期:2015-07-10 00:00:00
abstract::Intravenous artesunate is effective against cerebral malaria (CM), but high mortality and neurological sequelae in survivors are inevitable. We investigated the effect of combined artesunate and tetramethylpyrazine using mouse models of experimental cerebral malaria (ECM). Artesunate + tetramethylpyrazine reduced micr...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.0c00124
更新日期:2020-09-11 00:00:00
abstract::The fusion between the viral and the target cell membrane is a crucial step in the life cycle of enveloped viruses. The blocking of this process is a well-known therapeutic approach that led to the development of the fusion inhibitor peptide enfuvirtide, clinically used against human immunodeficiency virus (HIV) type ...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.8b00321
更新日期:2019-04-12 00:00:00
abstract::A series of derivatives of the 4,5-disubstituted class of 2-deoxystreptamine aminoglycoside antibiotics neomycin, paromomycin, and ribostamycin was prepared and assayed for (i) their ability to inhibit protein synthesis by bacterial ribosomes and by engineered bacterial ribosomes carrying eukaryotic decoding A sites, ...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.9b00128
更新日期:2019-10-11 00:00:00
abstract::Marburg virus causes sporadic outbreaks of severe hemorrhagic fever with high case fatality rates. Approved, effective, and safe therapeutic or prophylactic countermeasures are lacking. To address this, we used phage display to engineer a synthetic antibody, sFab H3, which binds the Marburg virus VP35 protein (mVP35)....
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.9b00091
更新日期:2019-08-09 00:00:00
abstract::At present, there is no licensed antiviral drug against dengue virus (DENV) infection. Mouse models of DENV infection have been widely used for preclinical evaluation of antivirals. However, only in a few instances so far have the data obtained from preclinical mouse model testing been associated with data from clinic...
journal_title:ACS infectious diseases
pub_type: 杂志文章,评审
doi:10.1021/acsinfecdis.8b00054
更新日期:2018-07-13 00:00:00
abstract::The increasing problem of multidrug resistance (MDR) in bacteria calls for discovery of new molecules and diagnostic methodologies that are effective against a wide range of microbial pathogens. We have studied the role of alexidine dihydrochloride (alex) as a bioaffinity ligand against lipopolysaccharide (LPS), a pat...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.8b00087
更新日期:2018-11-09 00:00:00
abstract::MmpL3, an essential mycolate transporter in the inner membrane of Mycobacterium tuberculosis (Mtb), has been identified as a target of multiple, chemically diverse antitubercular drugs. However, several of these molecules seem to have secondary targets and inhibit bacterial growth by more than one mechanism. Here, we ...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.0c00675
更新日期:2021-01-08 00:00:00
abstract::Bacterial quorum sensing (QS) is being contemplated as a promising target for developing innovative diagnostic and therapeutic strategies. Here we report for the first time the development of antibodies against 2-heptyl-4-quinolone (HHQ), a signaling molecule from the pqs QS system of Pseudomonas aeruginosa, involved ...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.0c00604
更新日期:2020-12-11 00:00:00
abstract::Natural product antibiotics have played an essential role in the treatment of bacterial infection in addition to serving as useful tools to explore the intricate biology of bacteria. Our current arsenal of antibiotics operate through the inhibition of well-defined bacterial targets critical for replication and growth....
journal_title:ACS infectious diseases
pub_type: 杂志文章,评审
doi:10.1021/acsinfecdis.9b00413
更新日期:2020-04-10 00:00:00
abstract::Many viruses, including the hepatitis C virus (HCV), are dependent on the host RNA silencing pathway for replication. In this study, we screened small molecule probes, previously reported to disrupt loading of the RNA-induced silencing complex (RISC), including 6-hydroxydopamine (6-OHDA), suramin (SUR), and aurintrica...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.6b00098
更新日期:2016-11-11 00:00:00
abstract::The recent outbreak of coronavirus disease 2019 (COVID-19) highlights an urgent need for therapeutics. Through a series of drug repurposing screening campaigns, niclosamide, an FDA-approved anthelminthic drug, was found to be effective against various viral infections with nanomolar to micromolar potency such as SARS-...
journal_title:ACS infectious diseases
pub_type: 杂志文章,评审
doi:10.1021/acsinfecdis.0c00052
更新日期:2020-05-08 00:00:00
abstract::Malaria continues to be a significant cause of death and morbidity worldwide, and there is a need for new antimalarial drugs with novel targets. We have focused as a potential target for drug development on N-myristoyl transferase (NMT), an enzyme that acylates a wide range of substrate proteins. The NMT substrates in...
journal_title:ACS infectious diseases
pub_type: 杂志文章,评审
doi:10.1021/acsinfecdis.7b00203
更新日期:2018-04-13 00:00:00
abstract::Negamycin is a hydrophilic antimicrobial translation inhibitor that crosses the lipophilic inner membrane of Escherichia coli via at least two transport routes to reach its intracellular target. In a minimal salts medium, negamycin's peptidic nature allows illicit entry via a high-affinity route by hijacking the Dpp d...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.5b00027
更新日期:2015-05-08 00:00:00
abstract::Enterovirus 71 (EV71) is a major etiological agent of hand, foot, and mouth disease, for which there is no antiviral therapy. We have developed densely sulfated disaccharide heparan sulfate (HS) analogues that are potent small molecule inhibitors of EV71 infection, binding to the viral capsid and acting as decoy recep...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.9b00070
更新日期:2019-10-11 00:00:00
abstract::Antibiotic resistance can come at a high cost, both in terms of fitness for the pathogen and poorer outcomes for patients. The fitness landscape encountered by bacterial pathogens varies greatly throughout patient populations in terms of host immunity as well as the duration and spectrum of antibiotics encountered. Se...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.8b00158
更新日期:2018-09-14 00:00:00
abstract::A method for the fast isolation, propagation, and characterization of very low count bacteriophages active against pathogenic bacterial strains is described in this study. Bacteriophages with a count of 102 phage particles were dynamically adhered from the maximum 10 mL blood plasma sample onto the nanostructured part...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.0c00358
更新日期:2020-10-09 00:00:00
abstract::Superoxide anion radical is generated as a natural byproduct of aerobic metabolism but is also produced as part of the oxidative burst of the innate immune response design to kill pathogens. In living systems, superoxide is largely managed through superoxide dismutases (SODs), families of metalloenzymes that use Fe, M...
journal_title:ACS infectious diseases
pub_type: 杂志文章,评审
doi:10.1021/acsinfecdis.8b00026
更新日期:2018-06-08 00:00:00
abstract::Bacterial sliding clamps control the access of DNA polymerases to the replication fork and are appealing targets for antibacterial drug development. It is therefore essential to decipher the polymerase-clamp binding mode across various bacterial species. Here, two residues of the E. coli clamp binding pocket, EcS346 a...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.9b00089
更新日期:2019-06-14 00:00:00
abstract::Enterohemorrhagic Escherichia coli (EHEC) is the causative agent of severe diarrheal disease in humans. Cattle are the natural reservoir of EHEC, and approximately 75% of EHEC infections in humans stem from bovine products. Many common bacterial pathogens, including EHEC, rely on chemical communication systems, such a...
journal_title:ACS infectious diseases
pub_type: 杂志文章
doi:10.1021/acsinfecdis.0c00654
更新日期:2020-12-11 00:00:00