This application seeks support to continue operations of the Ambystoma Genetic Stock Center (AGSC) at the University of Kentucky. The AGSC maintains a historically significant collection of Mexican axolotls (Ambystoma mexicanum), an endangered species that provides living materials in support of biomedical research nationally and internationally. Most notably, axolotls are studied because they are unique among vertebrates in being able to regenerate numerous tissues and body parts. These include the spinal cord, limbs, jaw, retina, brain, heart, and tail, all of which can be regenerated at any poit during embryonic, larval, and adult life. Also, axolotls are used by researchers that work in many additional areas, including neurobiology, ecotoxicology, development, physiology, cell biology, genetics, genomics, and evolution. Over the next 5 years, the AGSC will implement a new resource management plan to better ensure long-term sustainability of axolotl stocks and move each year towards greater self- sufficiency. This will be accomplished by providing high quality stocks that the community has come to depend upon, increasing production and distribution of axolotls, and offering new products and services. In particular, the AGSC will offer a microinjection service to assist investigators in the creation of transgenic axolotls. The AGSC will continue to serve as an informatics hub where investigators obtain information about the collection, technical procedures, potential collaborators, and research findings. Overall, the project will ensure distribution and long-term sustainability of axolotl resources to NIH-funded investigators.

Public Health Relevance

Living stock resources are needed for the Mexican axolotl so that biomedical investigators can translate biological information to humans. The Mexican axolotl is a primary vertebrate model for organ regeneration, tissue repair, and post--- embryonic development.

Agency
National Institute of Health (NIH)
Institute
Office of The Director, National Institutes of Health (OD)
Type
Animal (Mammalian and Nonmammalian) Model, and Animal and Biological Material Resource Grants (P40)
Project #
5P40OD019794-04
Application #
9441053
Study Section
Special Emphasis Panel (ZRG1)
Program Officer
Contreras, Miguel A
Project Start
2015-03-01
Project End
2020-02-29
Budget Start
2018-03-01
Budget End
2019-02-28
Support Year
4
Fiscal Year
2018
Total Cost
Indirect Cost
Name
University of Kentucky
Department
Social Sciences
Type
Schools of Arts and Sciences
DUNS #
939017877
City
Lexington
State
KY
Country
United States
Zip Code
40526
Al Haj Baddar, Nour W; Chithrala, Adarsh; Voss, S Randal (2018) Amputation-induced reactive oxygen species signaling is required for axolotl tail regeneration. Dev Dyn :
Randal Voss, S; Murrugarra, David; Jensen, Tyler B et al. (2018) Transcriptional correlates of proximal-distal identify and regeneration timing in axolotl limbs. Comp Biochem Physiol C Toxicol Pharmacol 208:53-63
Johnson, Kimberly; Bateman, Joel; DiTommaso, Tia et al. (2018) Systemic cell cycle activation is induced following complex tissue injury in axolotl. Dev Biol 433:461-472
Bryant, Donald M; Johnson, Kimberly; DiTommaso, Tia et al. (2017) A Tissue-Mapped Axolotl De Novo Transcriptome Enables Identification of Limb Regeneration Factors. Cell Rep 18:762-776
Ritenour, Angela M; Dickie, Renee (2017) Inhibition of Vascular Endothelial Growth Factor Receptor Decreases Regenerative Angiogenesis in Axolotls. Anat Rec (Hoboken) 300:2273-2280
Woodcock, M Ryan; Vaughn-Wolfe, Jennifer; Elias, Alexandra et al. (2017) Identification of Mutant Genes and Introgressed Tiger Salamander DNA in the Laboratory Axolotl, Ambystoma mexicanum. Sci Rep 7:6
Montoro, Rodrigo; Dickie, Renee (2017) Comparison of tissue processing methods for microvascular visualization in axolotls. MethodsX 4:265-273
Franklin, Brandon M; Voss, S Randal; Osborn, Jeffrey L (2017) Ion channel signaling influences cellular proliferation and phagocyte activity during axolotl tail regeneration. Mech Dev 146:42-54
McCusker, Catherine D; Diaz-Castillo, Carlos; Sosnik, Julian et al. (2016) Cartilage and bone cells do not participate in skeletal regeneration in Ambystoma mexicanum limbs. Dev Biol 416:26-33
Keinath, Melissa C; Timoshevskiy, Vladimir A; Timoshevskaya, Nataliya Y et al. (2015) Initial characterization of the large genome of the salamander Ambystoma mexicanum using shotgun and laser capture chromosome sequencing. Sci Rep 5:16413

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