Projects 8
Publications 31
Awards 19

Contact Details

Senior Research Fellow
    Group Leader, NHMRC Emerging Leader Fellow, Head of Microbial Exposure-Driven Translational Research in the Tropics (MED-TRopics) Program

    Biography

    Dr Roland Ruscher is a mucosal immunologist and group leader at the Australian Institute of Tropical Health and Medicine, James Cook University. His independently funded research program involves national and international collaborators across academia, industry, and clinical research. His research focuses on intestinal intraepithelial lymphocytes (IELs) and unconventional T cells at mucosal barrier sites, with the goal of understanding how these cells develop, specialise, and function at epithelial interfaces, and how their dysregulation contributes to inflammatory bowel disease and colorectal cancer.

    Dr Ruscher’s early work defined key developmental and functional properties of IELs, contributing foundational insights into intestinal immune biology. His current research examines how microbial exposure and diversification across life shape IEL functional capacity, and how these processes influence susceptibility to intestinal inflammation and malignancy.

    He spearheaded the establishment and now leads advanced natural microbiome and translational research capabilities at JCU, positioning the institute as a site for studying immune function under physiologically relevant microbial conditions. His group coordinates access to these platforms and integrates them with genetic tracing strategies, single-cell profiling, and human intestinal tissue analysis, enabling collaborative investigation of fundamental and disease-relevant questions in immunology and medical research.

    In parallel, Dr Ruscher co-leads industry-supported translational research aimed at modulating intestinal immunity. He is principal investigator on an R&D collaboration with industry partners, focused on preclinical evaluation of biologics targeting intestinal immune pathways.

    Research

    Research Interests

    Mucosal immunology

    Intestinal immunology

    Intestinal intraepithelial lymphocytes

    T cell responses in the gut

    Therapeutic capacities of helminth parasite derived molecules

    Inflammatory bowel disease

    Projects

    Teaching

    Research Advisor Accreditation

    Advisor Type

    Primary


    Current JCU Research Students

    Development of a peptide-based rapid response multi-pathogen nanoparticle vaccine platform
    Doctor of Philosophy (Medical, Molecular and Veterinary Sciences)
    Ontogeny and molecular imprinting of invariant Natural Killer T cells in compartments of the gastrointestinal tract and lung
    Doctor of Philosophy (Medical, Molecular and Veterinary Sciences)
    The Role of Intestinal T Cells in Gut Homeostasis and Disease
    Doctor of Philosophy (Medical and Molecular Sciences)
    Shaping of intestinal T cells by physiological microbial diversification, and consequences for colorectal cancer
    Doctor of Philosophy (Medical, Molecular and Veterinary Sciences)

    Completed JCU Research Students

    Exploring structure-function relationships in invertebrate-derived polypeptides
    Doctor of Philosophy (Medical and Molecular Sciences)- 2025
    Biodiscovery of anti-inflammatory drug lead molecules from Australian wet tropics plants and parasites
    Doctor of Philosophy (Medical and Molecular Sciences)- 2023
    Ethnobotany and the biological activities of Iningai and Mbabaram Medicinal Plants
    Master of Philosophy (Medical and Molecular Sciences)- 2024

    Current Honours and External Research Students

    Exploring unconventional intestinal T cells
    RESEARCH_MASTERS- 2026

    Completed Honours and External Research Students

    Establishing an organdie system for screening helminth-derived proteins as potential IBD-therapeutics.
    HONOURS

    Activities

    Outreach

    Consultancy

    Media

    Languages

    Committees

    Other Activities

    Awards

    Associations

    Education

    Employment

    Output

    Borup, Anne; Sharifpour, Mohammad Farouq; Rossen, Litten S.; Whitehead, Bradley; Boysen, Anders T.; Olesen, Rikke; Bohn, Anja B.; Ridolfi, Andrea; Brucale, Marco; Valle, Francesco; Paolini, Lucia; Radeghieri, Annalisa; Bergese, Paolo; Miles, Kim; Veitch, Margaret; Thomas, Tamara; Ruscher, Roland; Wangchuk, Phurpa; Giacomin, Paul; Loukas, Alex; Nejsum, Peter (2025) 'Helminth extracellular vesicles co-opt host monocytes to drive T cell anergy'. Journal of Extracellular Vesicles, 14 (1). [DOI]
    Journal Publication Open Access ResearchOnline@JCU
    Blake, Judith A.; Seifert, Julia; Miranda-Hernandez, Socorro; Ruscher, Roland; Giacomin, Paul R.; Doolan, Denise L.; Kupz, Andreas (2025) 'Distal airway epithelial progenitors mediate TGF-β release to drive lung CD8+ TRM induction following mucosal BCG vaccination'. Mucosal Immunology, . [DOI]
    Journal Publication Open Access ResearchOnline@JCU
    Zhang, Justin B.; Chaurasia, Priyanka; Nguyen, Angela; Huang, Zijian; Nguyen, Trang T.; Xu, Hui; Tran, Mai T.; Reid, Hugh H.; Jones, Claerwen M.; Schattgen, Stefan A.; Thiele, Daniel; Thomas, Paul G.; Rientjes, Jeanette; Good-Jacobson, Kim L.; Ruscher, Roland; Littler, Dene R.; Rossjohn, Jamie; Zareie, Pirooz; La Gruta, Nicole L. (2025) 'LCK–co-receptor association ensures T cell lineage fidelity and maximizes epitope-specific TCR diversity'. Science Immunology, 10 (104). [DOI]
    Journal Publication ResearchOnline@JCU
    Peck, Yoshimi; Pickering, Darren; Mobli, Mehdi; Liddell, Michael J.; Wilson, David T; Ruscher, Roland; Ryan, Stephanie; Buitrago, Geraldine; McHugh, Connor; Love, Nicholas C.; Pinlac, Theresa; Haertlein, Michael; Kron, Michael A.; Loukas, Alex; Daly, Norelle L. (2024) 'Solution structure of the N-terminal extension domain of a Schistosoma japonicum asparaginyl-tRNA synthetase'. Journal of Biomolecular Structure and Dynamics, 42 (15):7934-7944. [DOI]
    Journal Publication Open Access ResearchOnline@JCU
    Yakou, Marina H.; Ghilas, Sonia; Tran, Kelly; Liao, Yang; Afshar-Sterle, Shoukat; Kumari, Anita; Schmid, Kevin; Dijkstra, Christine; Inguanti, Chantelle; Ostrouska, Simone; Wilcox, Jordan; Smith, Maxine; Parathan, Pavitha; Allam, Amr; Xue, Hai Hui; Belz, Gabrielle T.; Mariadason, John M.; Behren, Andreas; Drummond, Grant R.; Ruscher, Roland; Williams, David S.; Pal, Bhupinder; Shi, Wei; Ernst, Matthias; Raghu, Dinesh; Mielke, Lisa A. (2023) 'TCF-1 limits intraepithelial lymphocyte antitumor immunity in colorectal carcinoma'. Science Immunology, 8 (88). [DOI]
    Journal Publication ResearchOnline@JCU
    Yeshi, Karma; Ruscher, Roland; Loukas, Alex; Wangchuk, Phurpa (2022) 'Immunomodulatory and biological properties of helminth-derived small molecules: Potential applications in diagnostics and therapeutics'. Frontiers in Parasitology, 1 . [DOI]
    Journal Publication Open Access ResearchOnline@JCU
    Ritmejeryte, Edita; Ryan, Rachael Y.M.; Byatt, Brendan J.; Peck, Yoshimi; Yeshi, Karma; Daly, Norelle L.; Zhao, Guangzu; Crayn, Darren; Loukas, Alex; Pyne, Stephen G.; Ruscher, Roland; Wangchuk, Phurpa (2022) 'Anti-inflammatory properties of novel galloyl glucosides isolated from the Australian tropical plant Uromyrtus metrosideros'. Chemico-Biological Interactions, 368 . [DOI]
    Journal Publication ResearchOnline@JCU
    Ryan, Stephanie M.; Ruscher, Roland; Johnston, Wayne A.; Pickering, Darren A.; Kennedy, Malcolm W.; Smith, Brian O.; Jones, Linda; Buitrago, Geraldine; Field, Matt A.; Esterman, Adrian J.; McHugh, Connor P.; Browne, Daniel J.; Cooper, Martha M.; Ryan, Rachael Y.M.; Doolan, Denise L.; Engwerda, Christian R.; Miles, Kim; Mitreva, Makedonka; Croese, John; Rahman, Tony; Alexandrov, Kirill; Giacomin, Paul R.; Loukas, Alex (2022) 'Novel antiinflammatory biologics shaped by parasite–host coevolution'. Proceedings of the National Academy of Sciences of the United States of America, 119 (36). [DOI]
    Journal Publication Open Access ResearchOnline@JCU
    Cobos, Claudia; Bansal, Paramjit S.; Wilson, David T.; Jones, Linda; Zhao, Guangzu; Field, Matthew A.; Eichenberger, Ramon M.; Pickering, Darren A.; Ryan, Rachael Y.M.; Ratnatunga, Champa N.; Miles, John J.; Ruscher, Roland; Giacomin, Paul R.; Navarro, Severine; Loukas, Alex; Daly, Norelle L. (2022) 'Peptides derived from hookworm anti-inflammatory proteins suppress inducible colitis in mice and inflammatory cytokine production by human cells'. Frontiers in Medicine, 9 . [DOI]
    Journal Publication Open Access ResearchOnline@JCU
    Yeshi, Karma; Ruscher, Roland; Miles, Kim; Crayn, Darren; Liddell, Michael; Wangchuk, Phurpa (2022) 'Antioxidant and Anti-Inflammatory Activities of Endemic Plants of the Australian Wet Tropics'. Plants, 11 (19). [DOI]
    Journal Publication Open Access ResearchOnline@JCU
    Lee, S. Thera; Georgiev, Hristo; Breed, Elise R.; Ruscher, Roland; Hogquist, Kristin A. (2021) 'MHC Class I on murine hematopoietic APC selects Type A IEL precursors in the thymus'. European Journal of Immunology, 51 (5):1080-1088. [DOI]
    Journal Publication ResearchOnline@JCU
    Buitrago, Geraldine; Pickering, Darren; Ruscher, Roland; Cobos Caceres, Claudia; Jones, Linda; Cooper, Martha; Van Waardenberg, Ashley; Ryan, Stephanie; Miles, Kim; Field, Matthew; Dredge, Keith; Daly, Norelle L.; Giacomin, Paul R.; Loukas, Alex (2021) 'A netrin domain-containing protein secreted by the human hookworm Necator americanus protects against CD4 T cell transfer colitis'. Translational Research, 232 :88-102. [DOI]
    Journal Publication Open Access ResearchOnline@JCU
    Wijeyesinghe1, Sathi; Beura, Lalit K.; Pierson, Mark J.; Stolley, Michael J.; Adam, Omar A.; Ruscher, Roland; Steinert, Elizabeth M.; Rosato, Pamela C.; Vezys, Vaiva; Masopust, David (2021) 'Expansible residence decentralizes immune homeostasis'. Nature, 592 :457-462. [DOI]
    Journal Publication ResearchOnline@JCU
    Ryan, Stephanie M.; Eichenberger, Ramon M.; Ruscher, Roland; Giacomin, Paul R.; Loukas, Alex (2020) 'Harnessing helminth-driven immunoregulation in the search for novel therapeutic modalities'. PLoS Pathogens, 16 (5). [DOI]
    Journal Publication Open Access ResearchOnline@JCU
    Yeshi, Karma; Ruscher, Roland; Hunter, Luke; Daly, Norelle; Loukas, Alex; Wangchuk, Phurpa (2020) 'Revisiting inflammatory bowel disease: pathology, treatments, challenges and emerging therapeutics including drug leads from natural products'. Journal of Clinical Medicine, 9 (5). [DOI]
    Journal Publication Open Access ResearchOnline@JCU
    Ruscher, Roland; Lee, S. Thera; Salgado, Oscar C.; Breed, Elise R.; Osum, Sara H.; Hogquist, Kristin A. (2020) 'Intestinal CD8αα IELs derived from two distinct thymic precursors have staggered ontogeny'. Journal of Experimental Medicine, 217 (8). [DOI]
    Journal Publication Open Access ResearchOnline@JCU
    Ruscher, Roland; Hogquist, Kristin A. (2019) 'Development, ontogeny, and maintenance of TCRab+ CD8aa IEL'. Current Opinion in Immunology, 58 :83-88. [DOI]
    Journal Publication ResearchOnline@JCU
    Owen, David L.; Mahmud, Shawn A.; Sjaastad, Louisa E.; Williams, Jason B.; Spanier, Justin A.; Simeonov, Dimitre R.; Ruscher, Roland; Huang, Weishan; Miller, Corey; Hekim, Can; Jeschkle, Jonathan C.; Aggarwal, Praful; Broeckel, Ulrich; LaRue, Rebecca S.; Henzler, Christine M.; Alegre, Maria-Luisa; Anderson, Mark S.; August, Avery; Marson, Alexander; Zheng, Ye; Williams, Calvin B.; Farrar, Michael A. (2019) 'Thymic regulatory T cells arise via two distinct developmental programs'. Nature Immunology, 20 :195-205. [DOI]
    Journal Publication ResearchOnline@JCU
    O’Sullivan, Brendan J.; Yekollu, Suman; Ruscher, Roland; Mehdi, Ahmed M.; Maradana, Muralidhara Rao; Chidgey, Ann P.; Thomas, Ranjeny (2018) 'Autoimmune-mediated thymic atrophy is accelerated but reversible in RelB-deficient mice'. Frontiers in Immunology, 9 . [DOI]
    Journal Publication Open Access ResearchOnline@JCU
    Nair, Prema M.; Starkey, Malcolm R.; Haw, Tatt Jhong; Ruscher, Roland; Liu, Gang; Maradana, Muralidhara R.; Thomas, Ranjeny; O’Sullivan, Brendan J.; Hansbro, Philip M. (2018) 'RelB-Deficient dendritic cells promote the development of spontaneous allergic airway inflammation'. American Journal of Respiratory Cell and Molecular Biology, 58 (3):352-365. [DOI]
    Journal Publication ResearchOnline@JCU
    Ruscher, Roland; Kummer, Rebecca L.; Lee, You Jeong; Jameson, Stephen C.; Hogquist, Kristin A. (2017) 'CD8aa intraepithelial lymphocytes arise from two main thymic precursors'. Nature Immunology, 18 (7):771-779. [DOI]
    Journal Publication ResearchOnline@JCU
    Baillet, Athan C.; Rehaume, Linda M.; Benham, Helen; O’Meara, Connor P.; Armitage, Charles W.; Ruscher, Roland; Brizard, Geraldine; Harvie, Marina C.G.; Velasco, Jared; Hansbro, Phillip M.; Forrester, John V.; Degli-Esposti, Mariapia A.; Beagley, Kenneth W.; Thomas, Ranjeny (2015) 'High Chlamydia burden promotes tumor necrosis factor–dependent reactive arthritis in SKG mice'. Arthritis & Rheumatology, 67 (6):1535-1547. [DOI]
    Journal Publication ResearchOnline@JCU
    Hellweg, Christine E.; Langen, Britta; Klimow, Galina; Ruscher, Roland; Schmitz, Claudia; Baumstark-Khan, Christa; Reitz, Günther (2009) 'Up-stream events in the nuclear factor jB activation cascade in response to sparsely ionizing radiation'. Advances In Space Research, 44 (8):907-916. [DOI]
    Journal Publication ResearchOnline@JCU
    Hellweg, C.E.; Spitta, L.; Arenz, A.; Bogner, S.C.; Ruscher, R.; Baumstark-Khan, C.; Greif, K.-D.; Giesen, U. (2007) 'Transcriptional response of human cells to microbeam irradiation with 2.1 MeV a-particles'. Advances In Space Research, 39 (6):1056-1065. [DOI]
    Journal Publication ResearchOnline@JCU
    Ruscher, Roland; Kupz, Andreas (2021) 'Home-o-static slowficiency' Science, 371 (6524) :23-23. [DOI]
    Journal Contribution ResearchOnline@JCU
    Ruscher, Roland; Giacomin, Paul (2020) 'IL-17A moonlighting in lung type 2 immunity' Mucosal Immunology, 13 :849-851. [DOI]
    Journal Contribution ResearchOnline@JCU
    Ruscher, Roland; Hogquist, Kristin A. (2018) 'Intravenous labeling and analysis of the content of thymic perivascular spaces' Bio-protocol, 8 (5) . [DOI]
    Journal Contribution ResearchOnline@JCU
    Walsh, Daniel; Borges Da Silva, Henrique; Beura, Lalit; Breed, Elise; Ruscher, Roland; Peng, Changwei; Hamilton, Sara E.; Masopust, David; Jameson, Stephan (2018) 'Defining the role of CD69 in the formation of resident memory CD8+ T cells' The Journal of Immunology, 200 (1 Supplement) .
    Journal Contribution Open Access ResearchOnline@JCU
    Lee, S. Thera; Ruscher, Roland; Hogquist, Kristin (2017) 'Distinct T cell clones are deleted during the two waves of thymic negative selection' The Journal of Immunology, 198 (1 Supplement) .
    Journal Contribution Open Access ResearchOnline@JCU
    Ruscher, R.; Kummer, R.; Lee, Y.J.; Huggenberger, S.; Hogquist, K.A. (2016) 'Thymic precursors of CD8aa+ intestinal epithelial lymphocytes (IEL) divide into an emigrating and a retained population' European Journal of Immunology, 46 :336-337.
    Journal Contribution Open Access ResearchOnline@JCU
    Nel, H.J.; Ruscher, R.; Boks, M.; Thomas, R.; O'Sullivan, B. (2016) 'RelB-deficient dendritic cells have increased retinoic acid dehydrogenase activity and promote regulatory T cell differentiation in mice and humans' European Journal of Immunology, 46 :821-821.
    Journal Contribution Open Access ResearchOnline@JCU