Development and Characterization of Animal Models for Aging Research (R21) | Apply Online

Opportunity Summary:

The Development and Characterization of Animal Models for Aging Research (R21) opportunity (Funding Opportunity Number PA-10-015) is a National Institutes of Health program led by the National Institute on Aging (NIA) that focuses on expanding and improving the research tools used to study aging. The central aim is to support early stage, exploratory projects that create, strengthen, or more thoroughly describe model systems that can make aging research more informative, reproducible, and broadly useful. While animal models are a major emphasis, the announcement is explicitly broader than that and also welcomes work involving specialized cell lines and informatics approaches that help researchers use animal and other biological models more effectively in aging studies.

From a scientific standpoint, the opportunity prioritizes projects that deepen the field's ability to measure and interpret aging by characterizing aging-related changes at multiple levels, including physiological, biochemical, and functional outcomes. One major category of interest is the careful characterization of existing animal models, including models originally developed for other areas of biomedical science that could be repurposed or adapted to answer aging questions. Another major category is the development of new animal models specifically suited to aging research, which may include novel species choices, engineered models, or refined experimental approaches that better capture aging processes or age-related vulnerability. The FOA also encourages the development of unique cell lines that can serve as aging-relevant tools, such as lines that reflect age associated cellular phenotypes or enable more consistent study of senescence, stress responses, or age linked molecular pathways. In addition, it highlights comparative biology as a strategy for identifying which models should be highest priority for the field, essentially encouraging researchers to use cross species comparisons to determine which organisms or systems are most informative for particular aging mechanisms. Finally, it calls out informatics development as a legitimate and valued contribution, especially when software, databases, analytical methods, or data integration tools would improve how animal based aging research is designed, tracked, shared, or interpreted.

The funding mechanism is the NIH Exploratory/Developmental Research Grant (R21), which is generally used for projects that are innovative and potentially high impact but still at a stage where feasibility, proof of concept, or preliminary characterization work is needed. This R21 announcement runs in parallel with a separate announcement of identical scientific scope that uses the R01 mechanism (PA-10-014), meaning applicants with a more mature, extended research plan could consider that companion route, while PA-10-015 is intended for shorter, exploratory efforts that can open up new directions or establish a foundation for future, larger projects.

In terms of funding structure, awards are not guaranteed and depend on NIH funds being available as well as the number and quality of applications received. The FOA notes that both the number of awards and the final award amounts can vary because proposed projects can differ widely in scope, duration, and cost. The listed award ceiling is $200,000, and there is no cost sharing or matching requirement, which reduces barriers for applicants and allows budgets to be driven primarily by scientific needs within the R21 constraints.

Eligibility is broad and includes many types of organizations that can conduct aging biology research. Eligible applicants include public and private institutions of higher education, nonprofit organizations (including both 501(c)(3) and certain non 501(c)(3) nonprofits), state governments, small businesses, and for profit organizations other than small businesses. The eligibility list also explicitly includes a wide range of other entities such as federally recognized tribal governments and tribal organizations, historically underrepresented or mission specific institutions (for example, HBCUs, Hispanic Serving Institutions, Alaska Native and Native Hawaiian Serving Institutions, and Tribally Controlled Colleges and Universities), U.S. territories or possessions, regional organizations, and even non U.S. (foreign) organizations, indicating an interest in leveraging global expertise and model system diversity when it supports NIA priorities.

Administrative details identify this as a discretionary grant in the health funding category under CFDA 93.866 (Aging Research). The opportunity was originally posted on October 29, 2009, with later dates reflecting the lifecycle of the announcement record (including a current closing date shown as March 22, 2013 and an archive date of April 22, 2013). For applicants or readers needing the full text, the additional information link points to the NIH Grants Guide page for PA-10-015, and NIH Office of Extramural Research web support contact information is provided for access or linking issues.

Overall, the FOA is best understood as an NIA effort to strengthen the infrastructure of aging research by investing in the models and tools that make downstream discoveries possible. Rather than funding only disease focused or purely mechanistic studies, it emphasizes the development, refinement, and rigorous characterization of the experimental systems themselves, whether that means validating how a particular animal model maps onto aging phenotypes, building new models that capture key features of aging biology, generating cell lines that enable consistent experimentation, applying comparative approaches to pick the right organisms for the right questions, or creating informatics resources that make animal based aging research easier to conduct, interpret, and reuse.

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