Division of Cancer Epidemiology and Genetics

Division of Cancer Epidemiology and Genetics. The Division of Cancer Epidemiology and Genetics (DCEG) is a premier research component of the National Cancer Institute (NCI), part of the National Institutes of Health. Its mission is to discover the genetic and environmental determinants of cancer and apply these findings to inform public health policy and clinical practice. The division conducts a comprehensive portfolio of population-based and family-based studies to understand cancer etiology and outcomes across diverse populations.

History and Mission

The division was formally established in 1996, consolidating and expanding upon the work of the earlier Epidemiology and Biostatistics Program. Its creation was driven by the growing recognition of the importance of integrating epidemiology with genetics to unravel the complex causes of cancer. The core mission is to lead national and international research into the genetic, environmental, and lifestyle factors that influence cancer risk, with the ultimate goal of reducing the burden of the disease. This work builds upon foundational studies initiated by pioneers like Joseph F. Fraumeni Jr., whose research on Li-Fraumeni syndrome highlighted the critical interplay of inherited susceptibility and environmental exposures.

Organizational Structure

DCEG is organized into several branches and offices, each focusing on specific methodological or disease-oriented research. Key branches include the Genetic Epidemiology Branch, the Radiation Epidemiology Branch, and the Infections and Immunoepidemiology Branch. The division also houses the Biostatistics Branch, which provides critical methodological support for study design and data analysis. Administrative and scientific oversight is provided by the Office of the Director, located primarily in Rockville, Maryland, with collaborative projects extending across the United States and globally. This structure facilitates interdisciplinary research spanning molecular epidemiology, biostatistics, and computational biology.

Key Research Areas

Research within the division spans a broad spectrum of etiologic science. A major focus is genetic epidemiology, investigating inherited genetic variants and somatic mutations associated with cancer risk through studies like the Cancer Genomics Research Laboratory. Another cornerstone is environmental epidemiology, examining exposures such as ionizing radiation, air pollution, and occupational hazards. The division also has strong programs in nutritional epidemiology, studying dietary factors, and the epidemiology of infections linked to cancer, including human papillomavirus and Helicobacter pylori. Research into cancer disparities seeks to understand differences in risk and outcomes among various racial, ethnic, and socioeconomic groups.

Major Studies and Findings

DCEG scientists have led numerous landmark studies that have shaped modern cancer prevention. The Agricultural Health Study has investigated cancer risks among farmers and pesticide applicators. Research from the Radiation Epidemiology Branch has been instrumental in defining cancer risks from medical exposures like computed tomography scans and from events such as the Chernobyl disaster. The division's work on the Cohort Consortium has pooled data from large prospective studies worldwide to identify novel risk factors. Seminal findings include elucidating the genetic basis of familial cancers, establishing the carcinogenicity of aflatoxin, and demonstrating the link between diethylstilbestrol exposure and clear cell adenocarcinoma.

Notable Scientists and Leadership

The division has been led by influential directors, including founding director Joseph F. Fraumeni Jr. and the current director, Stephen J. Chanock. Many investigators have achieved significant recognition, such as Margaret A. Tucker, known for melanoma research, and Martha S. Linet, a leading expert in radiation epidemiology. The work of Mark H. Greene on hereditary breast and ovarian cancer and Amy Berrington de González on radiation risk modeling has been widely acclaimed. Several DCEG scientists are members of the National Academy of Medicine and have received honors like the Charles S. Mott Prize.

Collaborations and Partnerships

Collaboration is fundamental to DCEG's work. The division partners extensively with other institutes within the National Institutes of Health, including the National Human Genome Research Institute. It maintains strong ties with academic institutions worldwide, such as the Harvard T.H. Chan School of Public Health and the University of Oxford. Key international partnerships involve organizations like the International Agency for Research on Cancer and consortia such as the Breast Cancer Association Consortium. DCEG also collaborates with U.S. federal agencies including the Centers for Disease Control and Prevention and the Environmental Protection Agency to translate research into public health guidance and policy. Category:National Cancer Institute Category:Medical and health organizations based in Maryland Category:Cancer research organizations