Rate My Professor Dena Lyras

Professor Dena Lyras is the Sir John Monash Distinguished Professor, Interim Dean of the Sub-Faculty of Biomedical Sciences, and Director of the Monash Biomedicine Discovery Institute in the Faculty of Medicine, Nursing and Health Sciences at Monash University. She is also Deputy Head of the Department of Microbiology and leads the Functional Biology of Bacterial Pathogens Laboratory. Lyras earned her PhD in microbial genetics and antimicrobial resistance from La Trobe University in 1995. After postdoctoral research focused on bacterial pathogenesis, she established her independent research laboratory at Monash University in 2010. She received an Australian Research Council Future Fellowship in 2012, which led to her promotion to Associate Professor. Previously serving as Deputy Director of the Biomedicine Discovery Institute, she was President of the Australian Society for Microbiology from 2018 to 2020 and is a founding member of the Centre to Impact Antimicrobial Resistance since 2020. Her career includes securing over $22 million in competitive grants from the National Health and Medical Research Council, Australian Research Council, industry, and philanthropy.

Lyras's research specializes in the pathogenesis of enteric bacterial pathogens, particularly Clostridioides difficile, examining host-pathogen interactions, toxin secretion, sporulation processes, antibiotic resistance, and lateral gene transfer in antibiotic-associated diarrhoea. Her laboratory employs genetic tools, animal infection models, and translational studies to develop immunotherapeutics and small molecules as non-antibiotic treatment strategies in collaboration with industry partners. She has authored 171 papers, accumulating more than 11,250 citations. Key publications include "A Clostridioides difficile endolysin modulates toxin secretion without cell lysis" (2024, Communications Biology), "Mechanisms of blaIMP-4 dissemination across diverse carbapenem-resistant clinical isolates" (2025, Journal of Global Antimicrobial Resistance), "A widespread hydrogenase supports fermentative growth of gut bacteria in healthy people" (2025, Nature Microbiology), and "Microbes as architects of colonic patterning" (2026, Cell Host & Microbe). Notable awards include the Australian Research Council Laureate Fellowship (2021, the first for an academic woman in her faculty), BacPath Oration Award (2022), Australian Society for Microbiology Distinguished Orator Award (2023), and election as Fellow of the American Academy of Microbiology.