Wendy Mok, PhDAssistant Professor, Department of Molecular Biology and BiophysicsDirector, Graduate Program in Molecular Biology and Biochemistry
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Degree | Institution | Major |
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HBSc | McMaster University | Biochemistry, Molecular Biology Specialization |
PhD | McMaster University | Biochemistry |
Post-Graduate Training
Training | Institution | Specialty |
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Postdoctoral | Princeton University | Postdoctoral Research Associate, Chemical and Biological Engineering |
Awards
Name of Award/Honor | Awarding Organization |
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2023 University of Connecticut Mentorship Excellence Award | University of Connecticut |
2022 Osborn Biomedical Science Graduate Teaching Award | UConn Health |
NIH Director's New Innovator Award | National Institutes of Health |
Boehringer Ingelheim Foundation Travel Fellowship | University of Basel |
Charles H. Revson Senior Fellowship in Biomedical Science | Charles H. Revson Foundation |
Alexander Graham Bell Canada Graduate Scholarship, Doctoral Level | Natural Sciences and Engineering Research Council of Canada |
Alexander Graham Bell Canada Graduate Scholarship, Master’s Level | Natural Sciences and Engineering Research Council of Canada |
Undergraduate Student Research Award (USRA), 2004, 2006, 2007 | Natural Sciences and Engineering Research Council of Canada |
- Foundations in Biomedical Science MEDS 6448
- Molecular Basis of Disease MEDS 5309
- Medical Microbiology MEDS 444-40
Our research focuses on how bacteria respond to and survive antibiotic treatment. We are especially interested in bacterial persisters, which are rare cell types in a population that can tolerate lethal doses of antibiotics that kill their genetically identical kin. Unlike antibiotic resistant mutants, persisters have not acquired heritable genetic changes that allow them to grow in the presence of antibiotics. Rather, the persister phenotype is transient. Once the antibiotic is removed and cells resume growth, the phenotype is lost. As persisters are recalcitrant to antibiotic treatment, they can potentially fuel the development of relapsing chronic infections and antibiotic resistance.
Our major goal is to understand the triggers and survival strategies of bacterial persisters. We use genetic, biochemical, and systems biology approaches to investigate how fluctuations in the host environment impact persistence and how bacteria respond to and recover from treatment with antibiotics that target different cellular components. Contact us to find out more.
Accepting Lab Rotation Students: Fall Block 2024, Spring 1 and 2 Block 2025
Journal Articles
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Metabolites augment oxidative stress to sensitize antibiotic-tolerant Staphylococcus aureus to fluoroquinolones.
mBio 2024 Oct;e0271424
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Agar and agarose used for Staphylococcus aureus biofilm cultivation impact fluoroquinolone tolerance.
Journal of applied microbiology 2024 Aug;135(8):
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Metabolic and transcriptional activities underlie stationary-phase Pseudomonas aeruginosa sensitivity to Levofloxacin.
Microbiology spectrum 2023 Dec;e0356723
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Stimulating Transcription in Antibiotic-Tolerant Escherichia coli Sensitizes It to Fluoroquinolone and Nonfluoroquinolone Topoisomerase Inhibitors.
Antimicrobial agents and chemotherapy 2023 Mar;e0163922
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Probiotic Escherichia coli Nissle 1917 Inhibits Bacterial Persisters that Survive Fluoroquinolone Treatment
Journal of Applied Microbiology 2022 Mar;
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The AcrAB-TolC Efflux Pump Impacts Persistence and Resistance Development in Stationary-Phase Escherichia coli Following Delafloxacin Treatment.
Antimicrobial agents and chemotherapy 2021 Jun;AAC0028121
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Dodecylamine rapidly kills of spores of multiple Firmicute species: properties of the killed spores and the mechanism of the killing.
Journal of applied microbiology 2021 May;
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Levels and Characteristics of mRNAs in Spores of Firmicute Species.
Journal of bacteriology 2021 May;
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Killing of bacterial spores by dodecylamine and its effects on spore inner membrane properties.
Journal of applied microbiology 2020 Jun;
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Lack of efficient killing of purified dormant spores of Bacillales and Clostridiales species by glycerol monolaurate in a non-aqueous gel.
Letters in applied microbiology 2020 Mar;
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DNA damage Kills Bacterial Spores and Cells Exposed to 222 nm UV Radiation.
Applied and environmental microbiology 2020 Feb;
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Enhanced antibiotic resistance development from fluoroquinolone persisters after a single exposure to antibiotic.
Nature communications 2019 Mar;10(1):1177
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Timing of DNA damage responses impacts persistence to fluoroquinolones.
Proceedings of the National Academy of Sciences of the United States of America 2018 Jul;115(27):E6301-E6309
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Biased inheritance protects older bacteria from harm.
Science (New York, N.Y.) 2017 Apr;356(6335):247-248
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An Orphan Riboswitch Unveils Guanidine Regulation in Bacteria.
Molecular cell 2017 Jan;65(2):205-206
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Non-Monotonic Survival of Staphylococcus aureus with Respect to Ciprofloxacin Concentration Arises from Prophage-Dependent Killing of Persisters.
Pharmaceuticals (Basel, Switzerland) 2015 Nov;8(4):778-92
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RNA Futile Cycling in Model Persisters Derived from MazF Accumulation.
mBio 2015 Nov;6(6):e01588-15
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Impacts of global transcriptional regulators on persister metabolism.
Antimicrobial agents and chemotherapy 2015 May;59(5):2713-9
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Aminoglycoside-enabled elucidation of bacterial persister metabolism.
Current protocols in microbiology 2015 Feb;3617.9.1-14
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A highly efficient molecular cloning platform that utilises a small bacterial toxin gene.
Chembiochem : a European journal of chemical biology 2013 Apr;14(6):733-8
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Developing fluorogenic RNA-cleaving DNAzymes for biosensing applications.
Methods in molecular biology (Clifton, N.J.) 2012 Jan;848395-418
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Decoding toxicity: deducing the sequence requirements of IbsC, a type I toxin in Escherichia coli.
The Journal of biological chemistry 2010 Dec;285(53):41627-36
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Characterization of an RNA-cleaving deoxyribozyme with optimal activity at pH 5.
Biochemistry 2009 Aug;48(31):7383-91
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Identification of a toxic peptide through bidirectional expression of small RNAs.
Chembiochem : a European journal of chemical biology 2009 Jan;10(2):238-41
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In vitro selection of protein-binding DNA aptamers as ligands for biosensing applications.
Methods in molecular biology (Clifton, N.J.) 2009 Jan;504399-415
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Non-molecular-clock-like evolution following viral origins in homo sapiens.
Evolutionary bioinformatics online 2007 Sep;3263-6
Book Chapters
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Nutrient limitation and bacterial persistence
Persister Cells and Infectious Disease 2019 Nov;99-132
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Resistance and tolerance to aminoglycosides
Bacterial Resistance to Antibiotics: From Molecules to Man 2019 Mar;481-100
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Small size, big impact: Bacterial functional nucleic acids and their applications
RNA Technologies. Chemical Biology of Nucleic Acids: Fundamentals and Clincial Applications 2014 Jan;309-323
Reviews
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Resistance-resistant antibacterial treatment strategies
Frontiers in Antibiotics 2023 Jan;
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Single-Cell Technologies to Study Phenotypic Heterogeneity and Bacterial Persisters.
Microorganisms 2021 Nov;9(11):
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The social network: Impact of host and microbial interactions on bacterial antibiotic tolerance and persistence.
Cellular signalling 2020 Aug;109750
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The role of metabolism in bacterial persistence.
Frontiers in microbiology 2014 Jan;570
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Therapeutic peptides: new arsenal against drug resistant pathogens.
Current pharmaceutical design 2014 Jan;20(5):771-92
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Recent Progress in Nucleic Acid Aptamer-Based Biosensors and Bioassays.
Sensors (Basel, Switzerland) 2008 Nov;8(11):7050-7084
Title or Abstract | Type | Sponsor/Event | Date/Year | Location |
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Sensitizing Antibiotic-Tolerant Bacteria to Topoisomerase Inhibitors to Reduce Infection Relapse and Resistance Development | Talk | LabRoots Microbiology Virtual Week | 2022 | Virtual |
Leveraging Bacterial Vulnerabilities to Bolster the Efficacy of Topoisomerase Inhibitors. | Talk | 50th Annual American Chemical Society Middle Atlantic Region Meeting | 2022 | Ewing, NJ |
Leveraging Bacterial Vulnerabilities to Bolster the Efficacy of Topoisomerase Inhibitors. | Talk | Gordon Research Conference on Drug Resistance | 2022 | Smithfield, RI |
Responses of Bacterial Persisters between Life and Death | Talk | UConn Health MD-Ph.D. Program | 2021 | WebEx |
Illuminating Bacterial Persister Survival Strategies with Flow Cytometry | Plenary Lecture | International Society for Advancement of Cytometry Annual Meeting | 2021 | On-line |
Bacteria in Sickness: How Persisters Recover from Antibiotic Treatment | Talk | UConn Department of Molecular & Cell Biology | 2020 | WebEx/ UConn Storrs |
Bacteria in Sickness: How Persisters Recover from Antibiotic Treatment | Talk | NIH Lambda Lunch | 2020 | WebEx/ NIH |
Deciphering the Survival Strategies of Bacterial Persisters | Talk | Pioneer Valley Microbiology Symposium | 2020 | UMass Amherst |
Deciphering the Survival Strategies of Bacterial Persisters | Lecture | UConn Department of Pathobiology | 2019 | UConn Storrs |
A Tale of Bugs and Drugs: Investigating How Bacterial Persisters Survive Antibiotic Treatments | Talk | Infectious Diseases Intercity Grand Rounds | 2019 | UConn Health |
DNA Damage Repair in Fluoroquinolone Persisters Can Fuel Antibiotic Failure | Talk | Bridging Theory and Experiment in Microbial Communities | 2018 | Princeton Center for Theoretical Science, Princeton, New Jersey |
Tick-tock: Timing of DNA damage responses impacts fluoroquinolone persistence | Talk | EMBO Workshop on Bacterial Persistence and Antimicrobial Therapy | 2018 | Congressi Stefano Franscini, Ascona, Switzerland |
Timing of replication and repair impacts persistence to ofloxacin | Talk | EMBO|EMBL Symposium: New Approaches and Concepts in Microbiology | 2017 | EMBL, Heidelberg, Germany |