2008 Scientific Report

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Van Andel Research Institute | Scientific Report Bryn Eagleson, B.S., RLATG Vivarium and Transgenics Program Bryn Eagleson began her career in laboratory animal services in 1981 with Litton Bionetics at the National Cancer Institute’s Frederick Cancer Research and Development Center (NCI–FCRDC) in Maryland. In 1983, she joined the Johnson & Johnson Biotechnology Center in San Diego, California. In 1988, she returned to NCI–FCRDC, where she continued to develop her skills in transgenic technology and managed the transgenic mouse colony. In 1999, she joined VARI as the Vivarium Director and Transgenics Special Program Manager. Technical Staff Lisa DeCamp, B.S. Dawna Dylewski, B.S. Audra Guikema, B.S., L.V.T. Tristan Kempston, B.S. Angie Rogers, B.S. Elissa Boguslawski, RALAT 20 Animal Caretaker Staff Sylvia Marinelli, Team leader Crystal Brady Jarred Grams Samuel Johnson Rishard Moody Janelle Post Tina Schumaker Bobbie Vitt
VARI | 2008 Research Interests The goal of the vivarium and the transgenics program is to develop, provide, and support high-quality mouse modeling services for the Van Andel Research Institute investigators, Michigan Technology Tri-Corridor collaborators, and the greater research community. We use two Topaz Technologies software products, Granite and Scion, for integrated management of the vivarium finances, the mouse breeding colony, and the Institutional Animal Care and Use Committee (IACUC) protocols and records. Imaging equipment, such as the PIXImus mouse densitometer and the ACUSON Sequoia 512 ultrasound machine, is available for noninvasive imaging of mice. Also provided by the vivarium technical staff are an extensive xenograft model development and analysis service, rederivation, surgery, dissection, necropsy, breeding, and health-status monitoring. Transgenics Fertilized eggs contain two pronuclei, one that is derived from the egg and contains the maternal genetic material and one derived from the sperm that contains the paternal genetic material. As development proceeds, these two pronuclei fuse, the genetic material mixes, and the cell proceeds to divide and develop into an embryo. Transgenic mice are produced by injecting small quantities of foreign DNA (the transgene) into a pronucleus of a one-cell fertilized egg. DNA microinjected into a pronucleus randomly integrates into the mouse genome and will theoretically be present in every cell of the resulting organism. Expression of the transgene is controlled by elements called promoters that are genetically engineered into the transgenic DNA. Depending on the selection of the promoter, the transgene can be expressed in every cell of the mouse or in specific cell populations such as neurons, skin cells, or blood cells. Temporal expression of the transgene during development can also be controlled by genetic engineering. These transgenic mice are excellent models for studying the expression and function of the transgene in vivo. From left to right, standing: Dylewski, Guikema, Grams, Schumaker, Rogers, Eagleson, Brady, Marinelli, Vitt, Post, Jason, Boguslawski, DeCamp From left to right, kneeling: Kempston, Moody, Johnson 21
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2008 Scientific Report

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