Research groups
Collaborators
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Sarah Blagden
Professor of Experimental Oncology
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Aihan Zhang
Postdoctoral researcher
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Kendra Perez-Smith
Translational Support Manager
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Alexander Colton
DPhil student
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Andrew Blake
Strategic Data Platform Development Lead
Colleges
Recent Activities
Marco Polo Peralta Alvarez
M.D., PhD (DPhil)
Postdoctoral Scientist in Cancer Vaccinology
Cancer Vaccinology and Immunology
RESEARCH SUMMARY
My research focuses on translational vaccinology, immunology and cancer prevention to develop interventions that can move efficiently from discovery through early clinical testing and into real-world use.
I developed an early interest in immunology during my medical training, which led me to pursue doctoral research at the Jenner Institute, University of Oxford. There, my work focused on vaccine development against infectious diseases, including tuberculosis, SARS-CoV-2 and malaria. My DPhil research focused on antibody responses to tuberculosis vaccines in humans and non-human primates, identifying functionally relevant immune signatures that may help inform future vaccine design (Peralta Alvarez et al., Vaccine, 2024), (Peralta Alvarez et al., NPJ vaccines, 2024).
Alongside this work, I contributed to the clinical development of the ChAdOx1 nCoV-19/AZD1222 vaccine in partnership with AstraZeneca, gaining experience across phase I–III vaccine studies and rapid-response clinical development. This experience highlighted the importance of integrating immunology, clinical strategy and scalable manufacturing to ensure that vaccines can be deployed effectively during global health emergencies.
In my first postdoctoral role, under the supervision of Assoc. Professor Alexander (Sandy) Douglas (Oxf), I focused on adenoviral vector manufacturing and vaccine process development, coordinating scientific, analytical and documentation activities across internal teams and external partners. This work strengthened my interest in the translational pathway from preclinical concept to clinical readiness, particularly for rapid-response vaccine platforms.
I have now joined the Blagden Group in the Department of Oncology, University of Oxford, where I am applying my expertise in vaccinology and immunology to cancer prevention. My current research interests include the development of cancer vaccinology programmes for BRCA-associated breast and ovarian cancer risk, as well as hereditary cancer syndromes such as Li-Fraumeni Syndrome. I am particularly interested in immune-based prevention strategies that can generate strong scientific rationale, clinically meaningful biomarkers and development-ready approaches for early phase I/IIa studies.
Key publications
Single-dose administration and the influence of the timing of the booster dose on immunogenicity and efficacy of ChAdOx1 nCoV-19 (AZD1222) vaccine: a pooled analysis of four randomised trials.
Journal article
Voysey M. et al, (2021), Lancet, 397, 881 - 891
Phase 1/2 trial of SARS-CoV-2 vaccine ChAdOx1 nCoV-19 with a booster dose induces multifunctional antibody responses.
Journal article
Barrett JR. et al, (2021), Nat Med, 27, 279 - 288
Efficacy and Safety of Pembrolizumab Plus Docetaxel vs Docetaxel Alone in Patients With Previously Treated Advanced Non-Small Cell Lung Cancer: The PROLUNG Phase 2 Randomized Clinical Trial.
Journal article
Arrieta O. et al, (2020), JAMA Oncol, 6, 856 - 864
Recent publications
Bivalent virus-like particles expressing SPECT1 and CSP trigger pre-erythrocytic malaria immunity and protect against transgenic Plasmodium falciparum sporozoite challenge in mice
Journal article
Turan G. et al, (2026), Frontiers in Immunology, 17
Early mucosal responses following a randomised controlled human inhaled infection with attenuated Mycobacterium bovis BCG.
Journal article
Marshall JL. et al, (2025), Nat Commun, 16
MetE: a promising protective antigen for tuberculosis vaccine development.
Journal article
Almujri SS. et al, (2025), Front Immunol, 16
Intravenous BCG vaccination in non-human primates induces superior serum antibody titers with enhanced avidity and opsonizing capacity compared to the intradermal route.
Journal article
Peralta Alvarez MP. et al, (2024), Vaccine, 42
MTBVAC induces superior antibody titers and IgG avidity compared to BCG vaccination in non-human primates.
Journal article
Peralta-Álvarez MP. et al, (2024), NPJ Vaccines, 9

