Background Efforts to slow the progression of periodontitis in older adults have been attempted through various therapies, including scaling and root planing (“deep cleanings”) or antibacterial adjuncts to reduce pathogens in the pocket, but these treatment modalities are invasive, need to be repeated often, and rely on access to such modalities, which may be limited for many older adults. Furthermore, current therapies are limited to treating the symptoms and fail to address the underlying cellular and molecular causes of periodontal disease, which we hypothesize are a direct consequence of biological aging. A component in most age-related disease and decline is a low-grade, chronic inflammation without overt infection known as “inflammaging”. Among the various organ systems that undergo inflammaging, periodontal disease involves most, if not all, sources and outcomes of inflammaging. Thus, evaluating pathways that target “inflammaging” may provide a unique, Geroscience-based treatment modality to reverse periodontal disease. Aims, Hypothesis & Results An Lab proposes to use small molecule inhibitors of the PI3K/NFkB/mTOR pathway to treat periodontal disease. Johnathan An’s Lab envision improvement of the periodontal disease phenotype after 8-week treatment with the candidate compounds maybe a result of (1) an improvement of systemic “inflammaging” to impact periodontal disease that will be tested with the first study (systemic administration), or (2) a direct improvement of periodontal disease, which will be tested with the second study (local administration). Either result could be the base for novel IP regarding formulation and/or delivery methods to improve aging, inflammation, and periodontal disease. Jonathan An’s collaborators also have preliminary data showing that a few of the tested interventions have beneficial effects on neurodegeneration and cognitive decline. Therefore, besides periodontal bone loss, the study will address other systemic markers of healthspan, including inflammation. The proposal is mainly based on a recent eLife paper (Rapamycin rejuvenates oral health in aging mice | eLife 7) by the research group, where they find positive effects of 8-week treatment with oral rapamycin in age-related periodontal bone loss in mice. Timeline An Lab is planning to conduct two pre-clinical studies to test the effectiveness of five selected drug candidates in reversing periodontal disease. The first study will be an 8-week study using rapamycin as a positive control. If the first study shows that any of the small molecules is effective in reversing periodontal disease to the same degree as rapamycin when administered systemically, a second sub-study will be carried out to test the effectiveness of their local delivery by brushing the interventions across the gum line, comparing them with locally delivered rapamycin. The results of these studies will provide critical pre-clinical IP data to support a future company targeting periodontal disease through geroscience. Pre-Clinical Studies Required Funding: $330,000 VitaDAO Board Evaluation Writeup Periodontitis is an unmet need with great impact on healthspan. This project focusing on using a geroscience approach and alleviating inflammaging was evaluated to have strong feasibility to tackle the issue. The proposal was highly rated for a strong scientific team, high novelty and impact, as well as IP-NFT potential. The team has access to dental clinics, which would greatly accelerate the clinical trial process, if the animal studies provide positive data.
Background Efforts to slow the progression of periodontitis in older adults have been attempted through various therapies, including scaling and root planing (“deep cleanings”) or antibacterial adjuncts to reduce pathogens in the pocket, but these treatment modalities are invasive, need to be repeated often, and rely on access to such modalities, which may be limited for many older adults. Furthermore, current therapies are limited to treating the symptoms and fail to address the underlying cellular and molecular causes of periodontal disease, which we hypothesize are a direct consequence of biological aging. A component in most age-related disease and decline is a low-grade, chronic inflammation without overt infection known as “inflammaging”. Among the various organ systems that undergo inflammaging, periodontal disease involves most, if not all, sources and outcomes of inflammaging. Thus, evaluating pathways that target “inflammaging” may provide a unique, Geroscience-based treatment modality to reverse periodontal disease.
Aims, Hypothesis & Results An Lab proposes to use small molecule inhibitors of the PI3K/NFkB/mTOR pathway to treat periodontal disease. Johnathan An’s Lab envision improvement of the periodontal disease phenotype after 8-week treatment with the candidate compounds maybe a result of (1) an improvement of systemic “inflammaging” to impact periodontal disease that will be tested with the first study (systemic administration), or (2) a direct improvement of periodontal disease, which will be tested with the second study (local administration). Either result could be the base for novel IP regarding formulation and/or delivery methods to improve aging, inflammation, and periodontal disease. Jonathan An’s collaborators also have preliminary data showing that a few of the tested interventions have beneficial effects on neurodegeneration and cognitive decline. Therefore, besides periodontal bone loss, the study will address other systemic markers of healthspan, including inflammation.
The proposal is mainly based on a recent eLife paper (Rapamycin rejuvenates oral health in aging mice | eLife 7) by the research group, where they find positive effects of 8-week treatment with oral rapamycin in age-related periodontal bone loss in mice.
Timeline An Lab is planning to conduct two pre-clinical studies to test the effectiveness of five selected drug candidates in reversing periodontal disease. The first study will be an 8-week study using rapamycin as a positive control. If the first study shows that any of the small molecules is effective in reversing periodontal disease to the same degree as rapamycin when administered systemically, a second sub-study will be carried out to test the effectiveness of their local delivery by brushing the interventions across the gum line, comparing them with locally delivered rapamycin. The results of these studies will provide critical pre-clinical IP data to support a future company targeting periodontal disease through geroscience.
Pre-Clinical Studies Required Funding: $330,000
VitaDAO Board Evaluation Writeup Periodontitis is an unmet need with great impact on healthspan. This project focusing on using a geroscience approach and alleviating inflammaging was evaluated to have strong feasibility to tackle the issue. The proposal was highly rated for a strong scientific team, high novelty and impact, as well as IP-NFT potential. The team has access to dental clinics, which would greatly accelerate the clinical trial process, if the animal studies provide positive data.
Jonathan An
Research Lead
Therapeutic Relevance
Strong therapeutic relevance demonstrated through published eLife data showing rapamycin reverses periodontal bone loss, inflammation, and microbiome dysbiosis in aged mice. PI3K/NFκB/mTOR pathway targeting is well-validated with clear mechanistic rationale linking inflammaging to periodontal disease. However, mechanism validation is primarily from single compound (rapamycin); the 5 candidate compounds lack published efficacy data.
Therapeutic Optionality
Clear expansion potential into peri-implantitis, cognitive decline, and systemic healthspan/lifespan effects. Collaborators have preliminary data on neurodegeneration benefits. The inflammaging mechanism suggests broad applicability to other age-related conditions, though direct evidence for indications beyond periodontitis is limited.
Intellectual Property
Significant IP weakness: no patents filed yet, and strategy relies on formulation/delivery claims rather than composition of matter (weakest patent type for pharmaceuticals). Repurposing existing compounds limits novelty. Freedom-to-operate appears reasonable but IP strength for competitive protection is questionable.
Utility Of Candidates
Rapamycin shows strong efficacy in published eLife study with quantitative outcomes (bone regeneration, reduced osteoclasts, reversed inflammation). However, the 5 new candidate compounds have no efficacy data yet - this is the proposed study. Candidates have well-characterized PK/PD from other indications but periodontal efficacy is unproven.
Prospects For Safety
Repurposing approach provides substantial existing safety data for candidate compounds. Rapamycin is FDA-approved with known safety profile. Local delivery strategy (toothpaste, trays) could minimize systemic exposure and associated risks. Chronic immunosuppression concerns with mTOR inhibitors remain relevant but manageable with local application.
Prospects For Gmp Cmc
Repurposed small molecules with established manufacturing processes significantly reduce CMC challenges. No novel synthesis required. Local delivery formulations (toothpaste, trays) are well-understood product formats. Manufacturing scalability should be straightforward given existing compound production infrastructure.
Prospects For Clinical Development
Clear path to clinical trials given repurposed compounds and PI's direct access to dental clinic. Periodontal disease has established clinical endpoints and regulatory precedents. However, project is still at early preclinical stage (TRL 3), and significant additional animal work plus safety studies needed before IND. No regulatory interactions yet.
Commercial Potential
Large market (>70% older adults affected), clear unmet need for non-surgical treatment. OTC toothpaste opportunity could provide broad market access. However, market is competitive with established dental therapeutics, and differentiation relies on geroscience positioning. Reimbursement pathway unclear for aging-based indication.
Organization And Team Fit
Strong academic team with relevant expertise (An - periodontal biology, Kaeberlein - geroscience/lifespan, Johnson - neurodegeneration). Good institutional resources at UW. Weakness: PI lacks entrepreneurial experience, which evaluators identified as risk. Spin-out intention exists but no commercial team assembled yet.