Team

People in the Johnson Lab

Meet the researchers and collaborators shaping our lab’s work.

Associate Professor Travis Johnson

Associate Professor Travis Johnson

Group leader

Cell signalling, rare metabolic disease, and preclinical therapeutic discovery

Associate Professor Travis Johnson is a geneticist and cell and developmental biologist whose research seeks to understand the molecular basis of rare inherited metabolic diseases and translate these discoveries into new therapies. After completing his PhD in Genetics at Monash University in 2010, he established an internationally recognised research program investigating how cell signalling and protein trafficking regulate development and disease. His laboratory now combines functional genomics, developmental biology, metabolism and physiology to uncover disease mechanisms and develop precision nutrition and drug repurposing therapies for childhood dementias, inherited metabolic disorders, and other severe genetic conditions that impact children.

Travis leads the Cell Signalling and Rare Metabolic Disorders Group at La Trobe University and has held prestigious ARC DECRA and Future Fellowships. His research integrates multiple model organisms, including fruit flies, zebrafish, and mice, with high-throughput compound and dietary screening, AI-assisted phenotypic analysis and innovative experimental technologies to rapidly move from gene discovery to preclinical therapeutic candidates. He is passionate about building new research tools and collaborative pipelines that accelerate rare disease research and bring practical treatment opportunities closer to patients and their families.

Dr Sarah Mele

Dr Sarah Mele

Postdoctoral researcher

Dietary and pharmacological interventions for rare childhood onset dementias

Dr Jemma Gasperoni

Dr Jemma Gasperoni

Postdoctoral researcher

Precision nutritional therapy in mammalian models of rare childhood dementias

Ms Emily Kerton

Ms Emily Kerton

Lab manager

Lab operations and research support

Ms Sabah Jbara

Ms Sabah Jbara

PhD student

Cell signalling pathways that control the basal state macrophage population size

Ms Zoriana Novosiadla

Ms Zoriana Novosiadla

PhD student

Nutrigenomics approaches for revealing inherited metabolic disease mechanisms and novel treatments

Mr Dekai Cai

Mr Dekai Cai

PhD student

Systems level analysis of metabolic dysfunction across inherited metabolic diseases

Ms Natasha Ruth

Ms Natasha Ruth

PhD student

Conserved mechanisms of sulfite oxidase deficiency for diet and drug-based therapeutic translation

Ms Tara Santamaria

Ms Tara Santamaria

MSc student and research technician

Novel control of growth factor trafficking for spatial signalling control

Ms April Lewis

Ms April Lewis

MSc student and research technician

Exploring novel treatments in fly and fish peroxisomal biogenesis disorder models

Team outside
AusFly 2025, Marysville

Interested in joining the team?

Email t.johnson@latrobe.edu.au to discuss research and training opportunities in rare metabolic disease.