Personal profile
Biography
Dr Oliver Treacy is a Lecturer Above the Bar in the Discipline of Pharmacology and Therapeutics at theUniversity of Galway. He obtained his BSc (Hons) in Microbiology in 2005 and MSc in Regenerative Medicine in 2009 from NUIG. Prior to completing his Masters degree, he worked for Abbott Ireland (now Abbvie) based in Co. Sligo. Following completion of his Masters degree, he pursued a PhD in transplant immunology investigating the ability of mesenchymal stromal cells (MSCs) to prolong corneal allograft survival. He graduated from the University of Galway with his degree in 2014. Oliver continued his work in the area of transplant immunology in a postdoctoral position funded by SFI, with a focus on enhancing the therapeutic efficacy of MSCs through licensing. In 2017, he joined the lab of Dr Aideen Ryan on a SFI-funded project aimed at identifying novel stromal cell-related immunotherapeutic targets for the treatment of metastatic colon cancer. The focus of his current work is to investigate the role of stromal cell-derived immune checkpoint marker expression in the context of colon cancer development and metastasis. Dr. Treacys work has led to a number of significant Public - No restrictionations describing novel discoveries in Cancer Immunology Research, Molecular Therapy, the American Journal of Transplantation and Stem Cells. In 2020, Dr Treacy received a Mobility Award from the Irish Association for Cancer Research (IACR) funded by the Association of Irish Floral Artists (AOIFA) and was awarded the European Association for Cancer Research (EACR) Young Scientist Award in 2021.
Education/Academic qualification
B.Sc.,M.Sc.
External positions
Senior Postdoctoral Researcher, Dr Aideen Ryan, NUI Galway
1 Sep 2017 → …
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 3 Good Health and Well-being
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Collaborations and top research areas from the last five years
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Small extracellular vesicles secreted from TGF-β1-licensed mesenchymal stromal cells reduce inflammation-associated injury following corneal alkali burn
Donohoe, E., Canning, A., Johnston, E., Moosavizadeh, S., Wang, J., Leahy, M., Treacy, O., Ryan, A. E. & Ritter, T., Dec 2025, In: Stem Cell Research and Therapy. 16, 1, 376.Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review
1 Citation (Scopus) -
Stromal cells modulate innate immune cell phenotype and function in colorectal cancer via the Sialic acid/Siglec axis
O'Neill, A., Zakaria, N., Bull, C., Egan, H., Corry, S. M., Leonard, N. A., O'Meara, C., Howard, L., Walsh, A., Reidy, E., Che, J., Peng, L., Cao, L., Egan, L. J., Ritter, T., Sheehan, M., Canney, A., Culligan, K., Hogan, A. M. & Hynes, S. O. & 4 others, , 19 Oct 2025, In: Journal for ImmunoTherapy of Cancer. 13, 10Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review
1 Citation (Scopus) -
The Tumour Glyco-Code: Sialylation as a Mediator of Stromal Cell Immunosuppression in the Tumour Microenvironment
O'Neill, A., Zakaria, N., Egan, H., Treacy, O., Hogan, A. M., O'Dwyer, M., Hynes, S. O. & Ryan, A. E., Jul 2025, In: European Journal of Immunology. 55, 7, e70000.Research output: Contribution to a Journal (Peer & Non Peer) › Review article › peer-review
3 Citations (Scopus) -
Tumor-associated mesenchymal stromal cells modulate macrophage phagocytosis in stromal-rich colorectal cancer via PD-1 signaling
Leonard, N. A., Corry, S. M., Reidy, E., Egan, H., O'Malley, G., Thompson, K., McDermott, E., O'Neill, A., Zakaria, N., Egan, L. J., Ritter, T., Loessner, D., Redmond, K., Sheehan, M., Canney, A., Hogan, A. M., Hynes, S. O., Treacy, O., Dunne, P. D. & Ryan, A. E., 20 Sep 2024, In: iScience. 27, 9, 110701.Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review
Open Access12 Citations (Scopus) -
Targeting stromal cell sialylation reverses T cell-mediated immunosuppression in the tumor microenvironment.
Ryan, A., Ritter, T. & Treacy, O., 1 May 2023, In: Cell Reports. 45, 5Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review
Open Access69 Citations (Scopus)
Activities
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Trung Bach
Treacy, O. (Co-Supervisor)
2024Activity: Other › Current Postgraduates (Research) Supervised
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School of Medicine Research Committee(Internal) (External organisation)
Treacy, O. (Member)
15 Jan 2022 → …Activity: Membership › Membership of committee
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Open House Lunch and Learn
Treacy, O. (Other)
9 May 2019 → …Activity: Other › Community Engagement/Outreach
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European association for Cancer Research (External organisation)
Treacy, O. (Member)
1 May 2019 → …Activity: Membership › Membership of board
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Cell Explorers School Visit
Treacy, O. (Other)
1 Nov 2017 → …Activity: Other › Community Engagement/Outreach
Prizes
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European Association for Cancer Research (EACR) Young Scientist Award
Treacy, O. (Recipient), 2021
Prize: Honorary award
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