Large-scale atlas of aging cells can help in the treatment of age-related diseases
Senescent (aging) cells lose their ability to divide, but they retain their metabolic activity. In a young organism, they perform several important functions, including tissue repair and anti-cancer protection. The immune system is responsible for their timely removal. However, as we age, the effectiveness of immune surveillance decreases, leading to the accumulation of senescent cells. These cells secrete various biologically active molecules that contribute to chronic inflammation and the progression of age-related pathologies. A consortium of scientists, as part of the Cellular Senescence Network (SenNet) program initiated by the US National Institutes of Health (NIH), has presented the first comprehensive atlas of senescent cells in human tissues. The research results have been published in several scientific journals.
A key challenge in the study of senescence remains the high heterogeneity of such cells and their low representation in tissues. To systematize the data, the researchers proposed the concept of senotypes, a classification of senescent cells based on their tissue of origin, microenvironment, and functional characteristics. This concept formed the basis for an atlas that captures the distribution of senescent cells in various organs, including the prefrontal cortex, lungs, and lymph nodes.
During the project, the consortium developed and applied a range of innovative methodological approaches. Single-cell profiling technologies, spatial omics methods, and artificial intelligence algorithms were used for the detection and analysis of rare cells. New computational tools have identified circulating biomarkers associated with the risk of developing chronic kidney disease, diabetes mellitus, and senile asthenia syndrome.
The obtained data are essential for the development of targeted therapeutic strategies. In particular, they can accelerate the creation and validation of senolytics, drugs designed to selectively remove aging cells. An important task in this regard is to ensure selective exposure while preserving the populations of cells that perform physiologically significant functions.
According to experts, mapping senotypes and identifying their unique characteristics will allow for the development of more precise therapeutic approaches. The creation of a unified database on senescent cells is considered a fundamental step in studying the mechanisms of aging and developing methods for the prevention and treatment of age-related diseases.
Published
June, 2026
Category
Science
Duration of reading
2-3 min
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List of sources
- Scientific journal Cell. Article: Charting Human Cellular Senescence in Aging and Disease
- Scientific journal Cell Press Blue. Article: Negin Farzad et al, A spatial multi-omics atlas of immunosenescence reveals germinal-center B cell alteration in human lymph nodes
- Scientific journal Molecular Cell. Article: Carlos Anerillas et al, SenCat: Cataloging human cell senescence through multi-omic profiling of multiple senescent primary cell types
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