
Jayden O’Brien, PhD
Researcher at the University of Texas at Dallas
From Sydney, Australia
My research training began as a neuroscience undergraduate with A/Prof Paul Austin at the University of Sydney, where I wrote my Honours thesis on an inflammatory model of Parkinson’s disease. I continued in the Austin lab along with co-supervisor A/Prof Helen McGuire to attain my PhD in 2023, during which I used mass cytometry to immunophenotype blood immune cells in people with diabetic neuropathic pain, migraine, and spinal cord injury.
As an early postdoc, I moved to the lab of A/Prof McGuire and Prof Barbara Fazekas de St Groth at the Charles Perkins Centre, where I applied mass cytometry to human immune cells in the context of cancer.
Since 2024, I have been a postdoctoral researcher with Prof Ted Price in the Center for Advanced Pain Studies at the University of Texas at Dallas. Here, I combine transcriptomics and in situ tissue characterisation with in vitro functional assays using primary human peripheral and central nervous system tissues. I focus on studying interactions between sensory neurons and non-neuronal cells in humans and how these contribute to osteoarthritis and painful diabetic neuropathy.
I investigate similarities and differences in the cellular and molecular drivers of pain in neuropathic, inflammatory, and musculoskeletal pain conditions so that we can develop mechanism-informed, pain-resolving therapies.
My approach leverages ex vivo models using primary human sensory neurons, immune cells, and mesenchymal cells to determine how we can switch the activity of non-neuronal cells from pain-promoting to pain-resolving.
I am interested in how dysregulated interactions between T cells and sensory neurons may drive systemic chronic disease and comorbidity.
I use single-cell and spatial technologies such as transcriptomics, mass cytometry, and mass spectrometry in tissues derived from patient populations to uncover cellular drivers of pain that we can target therapeutically.