Steven Hodi Jr., the i3 Centers other PI, and director of Melanoma Center and the Center for Immuno-Oncology at Dana-Farber, and professor of medicine at Harvard Medical School (HMS), is leading the clinical cancer vaccine trial. He has been at the forefront of developing cancer immunotherapies using immune checkpoint inhibitors, a class of drugs able to re-activate tumor-destroying T cells that are muted in the tumor microenvironment. The funding for this center provides a unique opportunity to unite key investigators for translating fundamental advancements in immunology and biomedical engineering into highly synergistic approaches to improve the treatments for cancer patients, said Hod
Using both in vivo and ex vivo biomaterials-based approaches, the i3 Center aims to boost tumor-specific activities of cytotoxic T cells, by boosting different stages of the normal process by which T cells develop, and acquire anti-cancer activity. T cells normal development starts in the bone marrow where hematopoietic stem cells generate T cell progenitor cells. These migrate to the thymus to differentiate into nave T cells, which then travel further to lymph nodes. There, they encounter cancer-derived antigens presented to them by specialized antigen-presenting cells (APCs) that can activate T cells to recognize and eliminate cancer cells.
In relation to adoptive T cell therapies in which T cells are given to patients to fight their cancers, one team at the i3 Center will be led by Dana-Farber researchers Catherine J. Wu and Jerome Ritz, who along with Mooney, will develop and test biomaterials that can better mimic normal APCs in activating and directing the function of patient-derived T cells outside the human body, prior to their transplantation. Wu is chief of the Division of Stem Cell Transplantation and Cellular Therapies, and Ritz is executive director of the Connell and OReilly Families Cell Manipulation Core Facility at Dana-Farber.
We need to make efforts to enhance the ability of theimmune systemto recognizetumor cells. One directionmylaboratoryis taking makes use of innovative biomaterialsto help us to efficiently expandpolyclonaltumor-specificfunctionally-effectiveT cellsex vivoin a way that can be readily translated to theclinical setting. In our studies, we are currently focusing on melanoma and acute myeloid leukemia, said Wu, whose research interests include understanding the basis of effective human anti-tumor responses, including the identification and targeting of the tumor-specific antigens.
A second project explores the use of DNA origami, biocompatible nanostructures composed of DNA, to create cancer vaccines. DNA origami could provide significant advantages in presenting tumor-specific antigens and immune-enhancing adjuvants to APCs because the concentrations, ratios, and geometries of all components can be modulated with nano-scale precision to determine configurations that are more effective than other vaccination strategies. The project will be run by Wyss Institute Core Faculty member William Shih, Derin Keskin, lead immunologist at Dana-Farbers Translational Immunogenomics Lab, and Mooney.
In a third project, David Scadden, professor at Harvards Department of Stem Cell and Regenerative Biology, will collaborate with Mooney to build on their previous work. They will engineer biomaterials that recreate key features of the normal hematopoietic stem cell niche in the bone marrow. Such implantable biomaterials could help rapidly amplify T cell progenitor cells, and enhance T cell-mediated anti-cancer immunity. Scadden also is the Gerald and Darlene Jordan Professor of Medicine at Harvard University, and co-director of the Harvard Stem Cell Institute.
The i3 Centers investigators anticipate that it will stimulate additional cross-disciplinary concepts and research, due to the culture of continuous interactions, sharing of findings, data and samples between all investigators, as well strong biostatistical expertise provided by Donna Neuberg, a senior biostatistician broadly involved with exploring immune-modulating cancer interventions at the Dana-Farber.
This new i3 Center for cancer immunotherapy innovation really embodies how the Wyss Institute with its unparalleled capabilities in bioengineering and serving as a site for multidisciplinary collaboration, and can liaise with clinicians and researchers at our collaborating institutions to confront major medical problems and bring about transformative change, said Wyss Founding Director Donald Ingber. He is also theJudah Folkman Professor of Vascular Biologyat HMS and the Vascular Biology Program at Boston Childrens Hospital, and Professor of Bioengineering at SEAS.
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NIH-funded i3 Center formed to advance cancer immunotherapy - Harvard Gazette
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