Arja Ray, PhD
Highlights
Languages
- English
Gender
MaleJohns Hopkins Affiliations:
- Johns Hopkins School of Medicine Faculty
About Arja Ray
Primary Academic Title
Assistant Professor of Cell Biology
Background
Arja Ray is a cross-disciplinary cancer researcher focused on understanding how cell–cell and cell–extracellular matrix (ECM) interactions regulate tumor progression and response to immunotherapy. Dr. Ray completed his PhD in Biomedical Engineering at University of Minnesota Twin Cities, studying cancer cell-ECM mechanobiology with Prof. Paolo Provenzano. In his postdoctoral work, Dr. Ray studied CD8 T cell and macrophage function in different tumor microenvironments at UCSF with Prof. Matthew Krummel. Dr. Ray holds Bachelors and Masters degrees in Biotechnology and Biochemical Engineering from the Indian Institute of Technology Kharagpur.
Centers and Institutes
The Bloomberg~Kimmel Institute for Cancer Immunotherapy
Recent News Articles and Media Coverage
Translating Science into Survival: Report on the Sixth International Cancer Immunotherapy Conference, AACR Journals, (February 03, 2023)
Research from 14 NextGen Stars featured throughout the program, American Association of Cancer Research Meeting News (April 4, 2022)
Additional Academic Titles
Assistant Professor of Oncology
Research Interests
cancer immunology, CD8 T cells, Macrophages, cell-ECM mechanobiology,
2-photon imaging
Lab Website
Research Summary
Immunotherapy has revolutionized the treatment of cancer. Most modalities of cancer immunotherapy work by enabling cytotoxic CD8 T cells to recognize and kill cancer cells. These cells, however, do not work in isolation and are inextricably shaped by the aberrant tumor microenvironment (TME), which includes other immune cells such as macrophages and dendritic cells, as well as acellular components such as the extracellular matrix (ECM). We seek to understand the intrinsic and microenvironmental regulation of cytotoxic CD8 T cell function in the context of tumors. We take advantage of novel genetically engineered mouse models to mark specific states of T cells and macrophages, high dimensional immune profiling, live imaging, in vitro 3D ECM culture systems and a variety of other techniques.
PubMed - Publications
https://www.ncbi.nlm.nih.gov/myncbi/arja.ray.2/bibliography/public/
Selected Publications
Ray A, Bassette M, Hu KH, Pass LF, Courau T, Samad B, Combes AJ, Johri V, Davidson B, Wai K, Ha P, Hernandez G, Zaleta-Linares I, Krummel MF.: Multimodal delineation of a layer of effector function among exhausted CD8 T cells in tumors. Sci Immunol. 2025; 10(109): eadt3537
Ray A, Hu KH, Kersten K, Courau T, Kuhn NF, Zaleta-Linares I, Samad B, Combes AJ, Krummel MF. Targeting CD206+ macrophages disrupts the establishment of a key anti-tumor immune axis.
J Exp Med. (2025) 222 (1): e20240957
Ray A*, Callaway MK*, Rodríguez-Merced NJ, Crampton AL, Carlson M, Emme KB, Ensminger EA, Kinne AA, Schrope JH, Rasmussen HR, Jiang H, DeNardo DG, Wood DK, Provenzano PP.: Stromal architecture directs early dissemination in pancreatic ductal adenocarcinoma. JCI Insight, 7(3): e150330, 2022
Ray A., Lee O., Win Z., Edwards RM, Alford PW, Kim DH, Provenzano PP: Anisotropic forces from spatially constrained focal adhesions mediate contact guidance directed cell migration. Nature Communications 8:14923, 2017
Ray A, Slama ZM, Morford RK, Madden SA, Provenzano PP: Enhanced directional migration of cancer stem cells in 3D aligned collagen matrices. Biophys J., 112(5):1023-1036, 2017
Honors
2025 AACR Cancer Immunology Working Group Monthly Junior Investigator Highlight (September)
2024 Arthur and Sandra Irving Cancer Immunology Symposium Fellow
2023 AAI Travel Award, FASEB Autoimmunity Conference
2022 Postdoctoral Independence Grant, Sandler Program for Breakthrough Biomedical Research, UCSF
2022 NextGen Star, American Association for Cancer Research (AACR) Annual Meeting 2022
2020 CRI Postdoctoral Fellowship, Cancer Research Institute
2019 Best Dissertation Award, Department of Biomedical Engineering, University of Minnesota
2016 Doctoral Dissertation Fellowship, University of Minnesota
2016 Outstanding Teaching Assistant in Biomedical Engineering, University of Minnesota
2014 Finalist Award in Poster Competition, ASME 2014 3rd Global Congress on Nano Engineering for Medicine and Biology
2012 Institute Silver Medal, IIT Kharagpur
2012 Best Master’s Thesis Award, Dept. of Biotechnology, IIT Kharagpur
Graduate Program Affiliations
Biochemistry, Cellular and Molecular Biology (BCMB)
Cellular and Molecular Medicine (CMM)
Immunology
Memberships
American Association for Cancer Research
Expertise
Education
- University of Minnesota (Twin Cities), Ph.D., 2017