Simian Models For The Oral Biology Of HIV Infection And AIDS Related Oral Complications (R21) | Apply Online

Opportunity Summary:

The grant opportunity titled "Simian Models For The Oral Biology Of HIV Infection And AIDS Related Oral Complications (R21)" (Funding Opportunity Number PA-07-369) is an NIH discretionary grant aimed at supporting early-stage, exploratory research that uses nonhuman primate models, specifically simian macaques, to deepen understanding of how HIV infection affects the oral cavity and how AIDS-related oral complications develop. The central focus is oral biology in the context of HIV/AIDS, meaning applicants are expected to concentrate on oral tissues, oral immune responses, oral microbial ecology, mucosal pathology, and related mechanisms that drive oral disease in HIV-infected individuals. By emphasizing macaque models, the FOA is pushing for studies that can more closely mirror human HIV disease processes in ways that smaller animal models often cannot, especially for complex mucosal and immunologic interactions in the mouth.

This opportunity uses the NIH Exploratory/Developmental Research Grant (R21) mechanism. In practical terms, that signals that NIH is looking for projects that are innovative, hypothesis-generating, and potentially higher-risk than standard R01 work, but still grounded in a strong rationale and feasible experimental approach. The FOA also makes a point that funding is limited and that the intent is to maximize the use of animals that are already enrolled in ongoing studies. That detail matters because it nudges applicants toward designs that leverage existing cohorts, archived samples, or animals already being followed for related HIV/SIV studies, rather than proposing entirely new, resource-intensive primate studies. The theme is efficiency and added value: investigators should propose oral-biology questions that can be answered by building onto established primate research infrastructures.

Scientifically, the FOA invites a broad range of investigations so long as they advance knowledge of oral HIV/AIDS in simian macaque models. This includes basic biology (for example, how infection changes oral mucosal cell populations or barrier integrity), pathogenic mechanisms (how virus-host interactions and inflammation lead to oral lesions, periodontal changes, opportunistic infections, or salivary gland dysfunction), immunology (local mucosal immunity, antibody and T-cell dynamics in oral tissues, innate responses, cytokine networks), diagnosis (identifying oral biomarkers in saliva, gingival crevicular fluid, or mucosal biopsies that correlate with disease stages), treatment (testing interventions that reduce oral viral burden, inflammation, or secondary infections), and prevention (strategies that protect oral mucosa or reduce oral transmission-relevant factors). The common thread is translational relevance: even though the work is in macaques, the studies should clearly connect back to human oral complications of HIV/AIDS and how they might be better predicted, prevented, or managed.

Administrative details place the program within NIH and link it to the CFDA number 93.121 (Oral Diseases and Disorders Research), reinforcing that this is fundamentally an oral health-focused initiative rather than a general HIV pathogenesis call. There is no cost sharing or matching requirement, which means applicants are not expected to provide institutional or third-party matching funds as a condition of the award. The number of awards is not fixed; instead, NIH indicates that awards will depend on the number of applications received, their scientific quality, the proposed project durations, and budget requests. In other words, it is a competitive, merit-driven program with flexible award volume, typical of many NIH FOAs.

Eligibility is broad and includes many types of domestic U.S. organizations such as public and private institutions of higher education, nonprofits (including those with and without 501(c)(3) status), small businesses, for-profit entities (including those other than small businesses), and multiple levels of government entities (state, county, city/township), as well as eligible tribal governments and tribal organizations and certain public housing authorities. A notable point is that foreign institutions are also eligible to apply, which expands the applicant pool beyond U.S.-based organizations and can support international primate research settings where appropriate expertise and facilities exist.

The FOA was originally posted May 1, 2007, with multiple receipt dates (so applications were accepted on more than one due date rather than a single deadline), and it was later archived June 7, 2010. While the archived status means it is no longer an active current competition, the announcement still serves as a clear description of NIH priorities at that time: using macaque-based HIV/SIV research to answer unanswered questions about oral disease mechanisms and oral health complications associated with AIDS, while encouraging efficient use of existing primate resources. For full official requirements, application instructions, and any special review considerations that were in effect during the active period of the FOA, NIH directed applicants to the complete announcement page at http://grants.nih.gov/grants/guide/pa-files/PA-07-369.html and provided NIH Office of Extramural Research web support contacts for access or linking issues.

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