Researchers from the global health system Cleveland Clinic and IBM have published a strategy for identifying new targets for immunotherapy through Artificial Intelligence (AI). This is the first peer-reviewed publication from the two organisations’ Discovery Accelerator partnership, designed to advance research in healthcare and life sciences.
The team worked together to develop supervised and unsupervised AI to reveal the molecular characteristics of peptide antigens, small pieces of protein molecules that immune cells use to recognise threats. Project members came from diverse groups led by Cleveland Clinic’s Timothy Chan, M.D., PhD, as well as IBM’s Jeff Weber, PhD, Senior Research Scientist, and Wendy Cornell, PhD, Manager and Strategy Lead for Healthcare and Life Sciences Accelerated Discovery.
“In the past, all our data on cancer antigen targets came from trial and error,” said Dr Chan, chair of Cleveland Clinic’s Center for Immunotherapy and Precision Immuno-Oncology and Sheikha Fatima Bint Mubarak Endowed Chair in Immunotherapy and Precision Immuno-Oncology. “Partnering with IBM allows us to push the boundaries of AI and health sciences research to change the way we develop and evaluate targets for cancer therapy.”
For decades, scientists have been researching how to better identify antigens and use them to attack cancer cells or cells infected with viruses. This task has proved challenging because antigen peptides interact with immune cells based on specific features on the surface of the cells, a process which is still not well understood. Research has been limited by the sheer number of variables that affect how immune systems recognise these targets. Identifying these variables is difficult and time-intensive with regular computing, so current models are limited and at times inaccurate.
Published in Briefings in Bioinformatics, the study found that AI models that account for changes in molecular shape over time can accurately depict how immune systems recognise a target antigen. Through these models, researchers could hone in on what processes are critical to target with immunotherapy treatments such as vaccines and engineered immune cells.
Researchers can incorporate these insights into other AI models moving forward to identify more effective immunotherapy targets.
“These discoveries are an example of what makes this partnership successful – combining IBM’s cutting-edge computational resources with Cleveland Clinic’s medical expertise,” Dr Weber said. “These findings resulted from a key collaboration between everyone from a world-class expert in cancer immunotherapy to our physics-based simulation and AI experts. Collaboration when combined with innovation has terrific potential.”
Cleveland Clinic and IBM launched their Discovery Accelerator partnership in 2021, which is focused on advancing the pace of biomedical research through the use of high-performance computing, artificial intelligence and quantum computing. The landmark partnership brings together Cleveland Clinic’s world-renowned expertise in healthcare and life sciences, with IBM’s next-generation technologies to make scientific discovery faster.