Sandra Sexton is associate professor of oncology and facility director and attending veterinarian at the Comparative Oncology Shared Resource (COSR) at the Roswell Park Comprehensive Cancer Center. She earned a doctorate in veterinary medicine in 1991 from the University of Agricultural Sciences in Bogotá, Colombia. After working in private practice and then relocating to the United States, she obtained a degree certification in veterinary medicine and surgery and completed a postdoctoral residency in laboratory animal medicine from the Division of Comparative Medicine at Buffalo State University.
Sexton joined the Roswell Park Comprehensive Cancer Center in 2003 as a research affiliate and postdoctoral veterinary resident, where she was appointed institute veterinarian of the Laboratory Animal Shared Resource (LASR) and promoted to facility director and attending veterinarian in 2006. She was board certified as a diplomate of the American College of Laboratory Animal Medicine in 2013. As COSR director and attending veterinarian, she provides support to scientists across the Cancer Center Support Grants with diverse experimental objectives, as well as operational leadership at the LASR, which provides facilities, personnel and equipment to assure compliance with all regulatory requirements and maintain AAALAC international accreditation.