(Press-News.org) GRAND RAPIDS, Mich. (Jan. 27, 2025) — A person’s lifetime risk for cancer may begin before they are even born, reports a paradigm-shifting study by Van Andel Institute scientists.
The findings, published in Nature Cancer, identified two distinct epigenetic states that arise during development and are linked to cancer risk. One of these states is associated with a lower lifetime risk while the other is associated with a higher lifetime risk.
If cancer does develop in the lower risk state, it is more likely to be a liquid tumor, such as leukemia or lymphoma. If cancer develops in the higher risk state, it is more likely to be a solid tumor, such as lung or prostate cancer.
“Because most cancers occur later in life and are understood as diseases of mutation, or genetics, there hasn’t been a deep focus on how development might shape cancer risk. Our findings change that,” said J. Andrew Pospisilik, Ph.D., chair of VAI’s Department of Epigenetics and co-corresponding author of the study. “Our identification of these two epigenetically different states open the door to an entirely new world of study into the underpinnings of cancer.”
Cancer risk increases as people age, thanks to an accumulation of DNA damage and other factors. Still, not every abnormal cell goes on to become cancer. In recent years, scientists have identified other influences, such as epigenetic errors, as additional contributors to cancer.
Epigenetics are processes that affect how and when the instructions in DNA are carried out. Problems with epigenetics can derail cellular quality control processes, enabling sick cells to survive and spread.
In their study, Pospisilik and collaborators found that mice with reduced levels of the gene Trim28 can have one of two patterns of epigenetic marks on cancer-related genes, despite being otherwise identical. These patterns are established during development. The strength of the patterns determines which of the two cancer risk states occur.
“Everyone has some level of risk but, when cancer does arise, we tend to think of it just as bad luck,” said Ilaria Panzeri, Ph.D., a research scientist in the Pospisilik Lab and the study’s first and co-corresponding author. “However, bad luck doesn’t fully explain why some people develop cancer and others don’t. Most importantly, bad luck cannot be targeted for treatment. Epigenetics, on the other hand, can be targeted. Our findings show that cancer’s roots may start during the sensitive period of development, offering a new perspective to study the disease and potential new options for diagnosis and treatment.”
The team found evidence of the two epigenetic states throughout tissues in the body, which suggests that developmental epigenetic risk may be common across cancers. In the future, they plan to explore the effects of these two states in individual cancer types.
Other authors include Luca Fagnocchi, Ph.D., Stefanos Apostle, M.S., Megan Tompkins, Emily Wolfrum, MPH, Zachary Madaj, M.S., Galen Hostetter, M.D., Yanqing Liu, Kristen Schaefer, Chih-Hsiang Yang, Ph.D., Alexis Bergsma, Ph.D., Anne Drougard, Ph.D., Erez Dror, Ph.D., Darrell Chandler, Ph.D., and Timothy J. Triche, Jr., Ph.D., of VAI; the PERMUTE Consortium; and Daniel Schramek, Ph.D., of University of Toronto. Schaefer also is affiliated with Case Western Reserve University.
Research reported in this publication was supported by Max Planck Gesellschaft (Pospisilik); the European Research Council under award no. ERC-CoG-682679 (Pospisilik); Van Andel Institute; Van Andel Institute’s Metabolism & Nutrition (MeNu) Program; the National Human Genome Research Institute of the National Institutes of Health under award no. R01HG012444 (Pospisilik and Nadeau); the National Institute of Diabetes and Digestive and Kidney Diseases of the National Institutes of Health under award no. R01DK132216 (Pospisilik and Schones); the National Institute of Allergy and Infectious Diseases of the National Institutes of Health under award no. R01AI171984 (Triche, Krawczyk, Prokop); the Chan Zuckerberg Initiative DAF, an advised fund of the Silicon Valley Community Foundation under award no. DI-000000287 (Triche); and the Human Frontier Science Program Long-Term Fellowship under award no. LT00441/2018-L (Panzeri). The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health or other funders.
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ABOUT VAN ANDEL INSTITUTE
Van Andel Institute (VAI) is committed to improving the health and enhancing the lives of current and future generations through cutting edge biomedical research and innovative educational offerings. Established in Grand Rapids, Michigan, in 1996 by the Van Andel family, VAI is now home to more than 500 scientists, educators and support staff, who work with a growing number of national and international collaborators to foster discovery. The Institute’s scientists study the origins of cancer, Parkinson’s and other diseases and translate their findings into breakthrough prevention and treatment strategies. Our educators develop inquiry-based approaches for K–12 education to help students and teachers prepare the next generation of problem-solvers, while our Graduate School offers a rigorous, research-intensive Ph.D. program in molecular and cellular biology. Learn more at vai.org.
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