Aging is a complex biological process driven by the interplay of multiple genetic and molecular factors. Understanding the genetic basis of aging is essential for advancing research in health, longevity, and age-related diseases. The hallmarks framework, originally proposed by Carlos López-Otín and colleagues in 2013 and later updated in 2023, provides a widely accepted conceptual structure for systematically organizing the molecular and cellular alterations underlying aging hallmarks.
Here, we present AgingHallmarksDB, an interactive web platform that systematically catalogs and curates genes associated with the 11 of 12 hallmarks of aging through the integration of multiple established biological databases. In addition to hallmark-specific gene annotations, the platform provides tissue specificity, cell-type classifications, exosome-associated expression, transcription factor (TF)–target interactions, and kinase–substrate relationships, enabling a systems-level understanding of aging biology. AgingHallmarksDB further supports hallmark enrichment analysis of user-submitted gene lists and offers interactive network visualizations to explore the regulatory and signalling landscapes underlying aging-associated molecular processes across tissues and cellular systems.

If you use our resource, please cite the following research article:
Rahul Tiwari, Mridhula Balaji, Nikhil Chivukula, Priyotosh Sil, Areejit Samal*, An integrated resource for systems-level analysis of aging hallmarks and associated genes, bioRxiv, 2026.05.29.728838 (2026).
* Corresponding author
Identify significantly enriched aging hallmarks within the user-provided gene set.
Retrieve comprehensive annotations for the user-provided gene set across aging hallmarks, tissues, cell types, and presence in exosomes.
Identify important hallmark-associated genes based on protein-protein interaction network topological measures, including degree, betweenness centrality, and closeness centrality.
The tool maps transcription factor (TF)-target interactions among the user-provided gene set, specifically focusing on aging-associated genes curated within this resource.
The tool maps kinase-substrate interactions among the user-provided gene set, specifically focusing on aging-associated genes curated within this resource.
Filter and download a custom subset of the AgingHallmarksDB using the parameters below.
| Purpose | Resource |
|---|---|
| Source for Aging Associated Genes | |
| Single Cell Data | |
| Gene Identifier Mapping | |
| TF-Target and Kinase-Substrate interaction | |
| Exosome Mapping | |
| Enrichment computation | |
| Web Interface |
Research in the group of Areejit Samal at The Institute of Mathematical Sciences (IMSc), Chennai is financially supported by the Department of Atomic Energy (DAE), Government of India. The funders have no role in study design, prediction, analysis or decision to publish this work.
The Browse page offers a comprehensive overview of the 11 of 12 recognized hallmarks of aging. By clicking on any hallmark icon, users can dynamically generate a detailed table of its associated genes. These results can be further refined by applying stringent evidence-based filters or by restricting the search to specific tissues and cell-type classes.
The Hallmark Enrichment module allows users to perform hallmark enrichment analysis using two distinct approaches: Standard Overlap (ORA) by submitting a simple list of Entrez Gene IDs, or Ranked GSEA by providing a list of genes with associated ranking metrics (such as log fold-change). Users can refine their analysis by selecting parameters such as gene set type, evidence stringency, and specific tissue or cell-type filters. After clicking “Run Analysis”, an interactive results dashboard is generated. This dashboard displays enriched hallmarks along with their statistical significance (adjusted p-values) and, for GSEA, Normalized Enrichment Scores (NES). These results can be further filtered based on user-defined minimum overlap and significance thresholds. Users can visualize ORA and GSEA results using highly customizable bar plots, bubble plots, or circular plots, while GSEA results further feature dedicated, hallmark-specific enrichment (barcode) plots. All generated plots can be downloaded directly in high-resolution PDF or PNG formats.
The Gene Annotation tool allows user to rapidly extract structured metadata for a customized list of Entrez Gene IDs. Upon submission, the platform redirects to a summary overview followed by an annotated table. This table maps the input genes to their respective aging hallmarks and details their spatial expression profile, including their documented presence across various tissues, specific cell types, and exosome datasets.
The PPI Network Topology module provides protein-protein interaction-based topological analysis of hallmark-associated genes using degree, betweenness centrality, and closeness centrality to identify key network nodes.
The Regulatory Interactions module offers advanced topological mapping for user-defined gene sets, visualizing key biological interaction:
AgingHallmarksDB is an interactive web platform of genes associated with the hallmarks of aging that have been curated from established reference databases. The authors are not liable for any inaccuracies or omissions of any genes or annotations pertaining to aging-related associations in this resource. Users are advised to exercise their discretion while judging the weight of evidence for the gene-hallmark mapping and interactions compiled in this resource. Importantly, our sole goal in building this resource on the genetic landscape of aging is to enable future basic research on this topic, and it does not necessarily reflect the views or objectives of our employers or funders.