Senior Management Team

Edison LiuEdison T. Liu, M.D.
President and CEO

Dr. Liu is the president and CEO of The Jackson Laboratory. Previously, he was the founding executive director of the Genome Institute of Singapore (2001-2011), and was the president of the Human Genome Organization (HUGO) from 2007-2013. Between 1997 and 2001, he was the scientific director of the National Cancer Institute's Division of Clinical Sciences in Bethesda, Md., where he was in charge of the intramural clinical translational science programs. From 1987 to 1996, Dr. Liu was a faculty member at the University of North Carolina at Chapel Hill, where he was the director of the UNC Lineberger Comprehensive Cancer Center's Specialized Program of Research Excellence in Breast Cancer; the director of the Laboratory of Molecular Epidemiology at UNC's School of Public Health; chief of Medical Genetics; and the chair of the Correlative Science Committee of the national cooperative clinical trials group, CALGB.

Dr. Liu is an international expert in cancer biology, genomics, human genetics, molecular epidemiology and translational medicine. Dr. Liu's own scientific research has focused on the functional genomics of human cancers, particularly breast cancer, uncovering new oncogenes, and deciphering the dynamics of gene regulation on a genomic scale that modulate cancer biology. He has authored over 300 scientific papers and reviews, and co-authored two books.

He obtained his B.S. in chemistry and psychology, as well as his M.D., at Stanford University. He served his internship and residency at Washington University's Barnes Hospital in St. Louis, followed by an oncology fellowship at Stanford. From 1982 to 1987 he was at the University of California, San Francisco, at the G.W. Hooper Foundation.


Chuck Hewett

Charles E. Hewett, Ph.D.
Executive Vice President and Chief Operating Officer

Dr. Hewett serves as executive vice president and chief operating officer of The Jackson Laboratory and as general manager of JAX® Mice, Research & Clinical Services, the organization's nonprofit research resources and services business. Since his arrival in 2004, he has overseen the launch of numerous research products and services; modernization of mouse production facilities; and completion of new research laboratories in Bar Harbor, Maine, and the relocation and expansion of the Laboratory's California operation. Dr. Hewett also led the development of The Jackson Laboratory for Genomic Medicine and secured the state of Connecticut's agreement to provide $291 million, 17 acres of land and 10 faculty positions for its establishment. He is currently working to design and construct the facility and recruit its administrative staff. Dr. Hewett is a member of the Laboratory's Board of Trustees and also served as a founding board member of the New York Genome Center.

Prior to joining the Laboratory, as CEO of Atlantic Energy Partners and Neptune Regional Transmission System, Dr. Hewett successfully developed a $650 million underwater merchant D.C. electric transmission system connecting Long Island, N.Y., to New Jersey. At the same time, he also served as vice president and secretary to the Board of the Cianbro Companies. In the mid 1990s, Dr. Hewett served for three years as the chief operating officer of the Executive Branch of the state of Maine during Governor Angus King's first term. He has held chief executive posts in the international pharmaceutical industry, in electric generation and in natural resource management and has created companies and managed start-up projects in Asia, Europe and the United States. He is a Phi Beta Kappa graduate in political economy from Williams College and holds M.F.S., M.S. and Ph.D. degrees from Yale University where he was a member of Sigma Xi.


Bob BraunRobert Braun, Ph.D.
Vice President for Research; Professor

Bob Braun, a distinguished scientist in the field of reproductive genetics, joined The Jackson Laboratory in 2007 after more than 20 years at the University of Washington School of Medicine, where he served as professor of genome sciences and as director and co-director, respectively, of two different University programs in reproductive biology research. Dr. Braun earned his undergraduate degree in molecular, cellular and developmental biology, chemistry and mathematics at the University of Colorado, Boulder, and his Ph.D. in the Tufts University School of Medicine department of microbiology. The recipient of many honors and awards, Dr. Braun has also been a visiting scientist at the Medical Research Council in England and, in 2001-2002, at The Jackson Laboratory. 


Leah Rae DonohueLeah Rae Donahue, Ph.D.
Director, Genetic Resource Science; Senior Research Scientist


A researcher renowned for her work in bone density and craniofacial defects, Leah Rae Donahue also directs The Jackson Laboratory's Genetic Resource Science group. The GRS team develops and distributes new mouse models of human diseases and other innovative research tools to the worldwide scientific community. Dr. Donahue, who holds undergraduate, M.S. and Ph.D. degrees from the University of Maine, came to the Laboratory in 1990 following research and practice in human nutrition; she is still a registered dietician with the American Dietetic Association, and is a member of the American Society for Bone and Mineral Research and International Mammalian Genome Society.

Dr. Donahue's research in endocrinology, skeletal biology and craniofacial dysmorphologies explores the intersections of genetic and environmental factors in disease. Her scientific expertise—along with her more than 20 years' experience in repository operations, mouse phenotyping and development of mouse models of human disease—has made her a sought-after collaborator. For many years, Dr. Donahue has worked with clinicians who see patients daily to identify the genetic contribution to skeletal diseases such as osteoporosis and more recently to investigate the relationship between genetics and environment that could lead to preterm birth.


Mike HydeMichael E. Hyde
Vice President for External Affairs and Strategic Partnerships


Mike Hyde manages federal and state governmental relationships for The Jackson Laboratory. He helps to build understanding of the Laboratory and its mission among decision makers, and he represents the Laboratory in policy discussions at various levels of government. Mr. Hyde also explores opportunities for strategic partnerships, and works with the CEO to open up new possibilities for research and collaboration.

Mr. Hyde is a member of the Laboratory's Senior Management Team, and he also represents the Laboratory on the board of directors of the Maine State Chamber of Commerce. His accomplishments include helping to secure funding for the JAX Genomic Medicine expansion in Connecticut and reshaping the Laboratory's branding and communications programs. Before joining the Laboratory in 2006, Mr. Hyde had a long career as a collegiate marketer and fundraiser. He holds undergraduate and graduate degrees from the University of Missouri, Columbia.


Charles Lee Charles Lee, Ph.D., FACMG
Scientific Director, The Jackson Laboratory for Genomic Medicine


Charles Lee, Ph.D., is the Scientific Director of The Jackson Laboratory for Genomic Medicine in Farmington, Conn. Prior to joining the Laboratory in 2013, he was on faculty in the Department of Pathology at Harvard Medical School and directed both the molecular genetics research unit at Brigham and Women’s Hospital and the cytogenetics facility for the Harvard Cancer Center in Boston.

Scientifically, Dr. Lee is best known for his discovery that copy-number variation – a state in which cells have a different number of copies of DNA sections, sometimes associated with susceptibility or resistance to disease – is widespread and significant in the human genome. This discovery, along with his subsequent research, has provided tools to aid in the accurate diagnosis of genetic conditions such as autism, birth defects and cancer. Dr. Lee has authored more than 140 papers in top-tiered scientific journals and has held advisory roles for numerous national organizations including the Food and Drug Administration (FDA), the National Human Genome Research Institute (NHGRI), the American Society of Human Genetics (ASHG) and the American College of Medical Genetics (ACMG).

For his discoveries and research into the human genome, Dr. Lee received numerous accolades and awards including the 2008 Ho-Am Prize in Medicine and a Chen Global Investigator award from the Human Genome Organization. He is also an elected fellow of the American Association for the Advancement of Science.

Dr. Lee earned his Ph.D. in 1996 at the University of Alberta in Canada and completed a research fellowship at Cambridge University in England and clinical training at Harvard Medical School. He is board certified as a clinical cytogeneticist by the American Board of Medical Genetics.


Tom Litwin Thomas S. Litwin, Ph.D.
Vice President for Education


Scientist and educator Thomas S. Litwin, Ph.D., oversees the Laboratory's pre-college and college education programs, predoctoral and postdoctoral training programs, and the growing roster of web-based educational material, courses, conferences and workshops for working scientists, laboratory professionals and the public. Dr. Litwin joined the Laboratory after 23 years as director of the innovative Clark Science Center at Smith College in Northampton, Mass. Collaborating with the Center's eight academic departments and 90 faculty members, he focused on experiential learning curriculum development and science program building. He holds a Bachelor of Arts degree in English Literature from Hartwick College in Oneonta, N.Y., and a Ph.D. in avian ecology from Cornell University's Laboratory of Ornithology in Ithaca, N.Y. His science education focus has resulted in a PBS feature film and video series for NOVA. Dr. Litwin is a member of the American Association of Colleges and Universities, the Society for Conservation Biology, the Ecological Society of America, the American Geophysical Union, the American Association for the Advancement of Science and Sigma Xi. He was awarded an Aldo Leopold Fellowship for science communication in 2004.


Kristen Rozansky Kristen Rozansky
Vice President for Development and Communications


Kristen Rozansky is responsible for foundation relations, development and communications at The Jackson Laboratory. Before joining the Laboratory in 2013, Ms. Rozansky was associate vice president for development for Penn State University in University Park, Pa., and chief development officer for the Penn State Hershey Medical Center. In her five years at Penn State, Ms. Rozansky's accomplishments included securing $191 million in pledges and new gifts as part of a University-wide fundraising campaign, and raising more than $65 million in a campaign for a new, freestanding children's hospital. Starting her development career in 1996 at the Wharton School of the University of Pennsylvania, in Philadelphia, Ms. Rozansky rose to director of donor relations. In 2002 she moved to the university's Perelman School of Medicine, becoming the executive director of alumni development and alumni relations and planned giving.

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