Dr Jon Hazeldine BSc (Hons), MSc, PhD, AFHEA

Dr Jon Hazeldine

Department of Inflammation and Ageing
Medical Research Council Career Development Award Research Fellow

Contact details

Address
Department of Inflammation and Ageing
University of Birmingham Research Labs
Queen Elizabeth Hospital
Mindelsohn Way
Birmingham
B15 2WB

Dr Jon Hazeldine is a trained immunologist who specialises in how major trauma and thermal injury modulates the immune system.

His research is focussed primarily around understanding the mechanisms that underlie the immediate (<1 hour), acute (4-72 hours) and persistent (up to 1-year) state of systemic immune suppression that develops in severely injured patients and how this is linked to such clinical outcomes as sepsis, multiple organ dysfunction and mortality.

ResearchGate Profile

Qualifications

  • Associate Fellow of the Higher Education Academy, 2018.
  • PhD in Immunology, University of Birmingham, 2013.
  • MSc in Immunology, University of Birmingham, 2008.
  • BSc (Hons) in Human Biology, University of Birmingham, 2007.

Biography

Dr Hazeldine graduated from the University of Birmingham in 2007 with a BSc (Hons) in Human Biology before undertaking an MSc in Immunology in 2008 during which he studied the effect of cyclin dependent kinase inhibitors on neutrophil lifespan. Dr Hazeldine then undertook a PhD investigating the effect of human ageing on the function of the innate immune system in the research group of Professor Janet M. Lord. Since completing his doctorate, Dr Hazeldine has taken his interest in innate immunity into the setting of major traumatic and thermal injury, where he explores the short (hours-days) and long (weeks, months and years) term effects that severe injury has on the function of the innate immune system and how this influences patient outcomes.

Via a collaboration with pre-hospital emergency care paramedics and the Midlands Air Ambulance Charity, Dr Hazeldine is currently the lead laboratory investigator of the “Golden Hour” project, a unique study that acquires blood samples from major trauma patients at the scene of their injury. Acquired within 1-hour of an emergency 999 call, the analysis of these blood samples has revealed novel insights into the immune and inflammatory response to major trauma, with evidence of systemic immune suppression detectable prior to a patients arrival to hospital.

Teaching

Undergraduate

  • BSc Year 2, Immunity and Infection.
  • BSc Year 2, Stem Cells and Genetic Inheritance.
  • BSc Year 3, The Biology of Ageing.

Postgraduate

  • MSc Trauma Science – Critical Care, Torso Trauma and Burns Management.
  • MSc Immunology and Immunotherapy: Inflammation and Cell Migration.
  • MSci Y4, Clinical Haematology.
  • MPharm: Health, Disease and Therapeutics.
  • MBChB Year 2 Professional and Academic Skills.
  • Experimental Design and Developing a Research Proposal
  • Integrated PhD Life Sciences Research Project

Postgraduate supervision

During his PhD and postdoctoral studies, Dr Hazeldine has been involved in the laboratory supervision of:

  • BSc students (>15)
  • MSc students (7)
  • PhD students (3)

Research

Research themes

  • The effect of major traumatic and thermal injury on the innate immune response.
  • Mechanisms underlying injury-induced immune suppression.
  • The immune and inflammatory response to thermal injury.
  • How the immune and inflammatory response to severe injury influences patient outcomes (e.g. development of sepsis).

Other activities

Public engagement

  • Contributes to Continuing Professional Development Sessions on Human Biology run by The Prince’s Teaching Institute

Awards

  • Co-author of an original research manuscript that won the A.L.Copley Best Paper Prize for papers published in the Journal of Clinical Hemorheology and Microcirculation in 2019.
  • Primary author of “Primary adrenal insufficiency is associated with impaired natural killer cell function: a potential link to increased mortality”, which was the most downloaded original research paper across all issues of the European Journal of Endocrinology published during 2017.
  • Awarded prize for best student. MSc immunology. University of Birmingham (2008)
  • Received the Medawar Prize in Human Biology, which is awarded annually to the student, who having specialised in Human Biology, achieves the most outstanding performance in the final Honours examination for the degree of BSc in Human Biology (2007).

Publications

Recent publications

Article

Sullivan, J, Nicholson, T, Hazeldine, J, Moiemen, N & Lord, JM 2025, 'Accelerated epigenetic ageing after burn injury', GeroScience. https://doi.org/10.1007/s11357-024-01433-4

Tullie, S, Asiri, A, Acharjee, A, Moiemen, NS, Lord, JM, Harrison, P & Hazeldine, J 2025, 'Day One Cell-Free DNA Levels as an Objective Prognostic Marker of Mortality in Major Burns Patients', Cells, vol. 14, no. 11, 821. https://doi.org/10.3390/cells14110821

Wijesinghe, SN, MacLeod, M, Northall, E, Ditchfield, C, Nicholson, T, Sagmeister, M, Hazeldine, J, Davis, ET & Jones, S 2025, 'From fat to flame: Multi-omic insights into how adipose-joint crosstalk stokes the fires of osteoarthritis', Osteoarthritis and Cartilage. https://doi.org/10.1016/j.joca.2025.08.012

Nicholson, T, MacLeod, M, Belli, T, Lord, J & Hazeldine, J 2025, 'Major Traumatic Injury and Exposure to Mitochondrial-Derived Damage-Associated Molecular Patterns Promotes Neutrophil Survival Accompanied by Stabilisation of the Anti-Apoptotic Protein Mcl-1', Cells, vol. 14, no. 10, 754. https://doi.org/10.3390/cells14100754

Hazeldine, J, Withnall, E, Llibre, A, Duggal, N, Lord, J & Veiga Sardeli, A 2025, 'Physical Activity Modifies the Metabolic Profile of CD4+ and CD8+ T-Cell Subtypes at Rest and Upon Activation in Older Adults', Aging Cell. https://doi.org/10.1111/acel.70104

Asiri, A, Hazeldine, J, Moiemen, N, Sakuma, M, Irimia, D & Harrison, P 2025, 'Qualitative and Quantitative Analysis of Circulating NET-derived chromatin and nucleosomes in Severe Thermal and Traumatically-injured patients', Shock.

Nicholson, T, Dhaliwal, A, Quinlan, JI, Allen, SL, Williams, FR, Hazeldine, J, McGee, KC, Sullivan, J, Breen, L, Elsharkawy, AM, Armstrong, MJ, Jones, SW, Greig, CA & Lord, JM 2024, 'Accelerated aging of skeletal muscle and the immune system in patients with chronic liver disease', Experimental and Molecular Medicine, vol. 56, pp. 1667–1681. https://doi.org/10.1038/s12276-024-01287-y

McGee, KC, Sullivan, J, Hazeldine, J, Schmunk, LJ, Martin-Herranz, DE, Jackson, T & Lord, JM 2024, 'A combination nutritional supplement reduces DNA methylation age only in older adults with a raised epigenetic age', GeroScience. https://doi.org/10.1007/s11357-024-01138-8

Khan, R, Salman, S, Harford, L, Sheriff, L, Hazeldine, J, Rajoriya, N, Newsome, PN & Lalor, PF 2024, 'Circulating myeloid populations have prognostic utility in alcohol-related liver disease', Frontiers in immunology, vol. 15, 1330536. https://doi.org/10.3389/fimmu.2024.1330536

Jasper, A, Faniyi, A, Davis, L, Grudzinska, F, Halston, R, Hazeldine, J, Parekh, D, Sapey, E, Thickett, D & Scott, A 2024, 'E-cigarette vapor renders neutrophils dysfunctional due to filamentous actin accumulation', Journal of Investigational Allergology and Clinical Immunology, vol. 153, no. 1, pp. 320-329.e8. https://doi.org/10.1016/j.jaci.2023.08.025

Asiri, A, Hazeldine, J, Moiemen, N & Harrison, P 2024, 'IL-8 Induces Neutrophil Extracellular Trap Formation in Severe Thermal Injury', International Journal of Molecular Sciences, vol. 25, no. 13, 7216. https://doi.org/10.3390/ijms25137216

Chen, Y-Y, Sullivan, J, Hanley, S, Price, J, Tariq, M, McIlvenna, LC, Whitham, M, Sharma-Oates, A, Harrison, P, Lord, J & Hazeldine, J 2024, 'Impact of Senescent Cell-Derived Extracellular Vesicles on Innate Immune Cell Function', Advanced Biology. https://doi.org/10.1002/adbi.202400265

Asiri, A, Price, J, Hazeldine, J, McGee, K, Veiga Sardeli, A, Chen, Y-Y, Sullivan, J, Moiemen, N & Harrison, P 2024, 'Measurement of platelet thrombus formation in patients following severe thermal injury', Platelets, vol. 35, no. 1, 39494714. https://doi.org/10.1080/09537104.2024.2420952

Abstract

Thein, OS, Belchamber, K, Hazeldine, J, Faniyi, A, Grudzinska, F, Hughes, M, Jasper, A, Yip, KP, Crowley, L, Lugg, S, Sapey, E, Parekh, D, Thickett, D & Scott, A 2024, 'Dysfunctional neutrophil response in COVID-19 infection vary by subtype', Clinical Medicine, vol. 23, no. 6, pp. 69-70. https://doi.org/10.7861/clinmed.23-6-s69

Review article

Hanley, S, Chen, Y-Y, Hazeldine, J & Lord, J 2024, 'Senescent cell-derived extracellular vesicles as potential mediators of innate immunosenescence and inflammaging', Experimental gerontology, vol. 187, 112365. https://doi.org/10.1016/j.exger.2024.112365

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