Characterizing the B-cell senescence signature in driving the disease phenotype in COPD/emphysema
Researchers have identified a specific B-cell senescence signature in the lungs of COPD patients that contributes to chronic inflammation and tissue damage. The study uses multi-omics and single-cell RNA sequencing to map how these senescent cells interact with alveolar cells.
Why it matters
Understanding the molecular mechanisms of COPD could lead to new therapeutic targets for treating chronic lung diseases and inflammation.
Communications Medicine ( 2026 ) Cite this article
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Increased cellular senescence is a key mechanism underlying chronic inflammation and airway remodeling in chronic obstructive pulmonary disease (COPD). Yet, the cellular composition and molecular features of the senescent microenvironment in COPD remain poorly understood.
To address this gap, we employed a multi-omics approach to identify senescence-associated differentially regulated cell populations and associated genes in smoke-induced emphysema. Single-cell RNA sequencing analyses of 121,885 lung cells from COPD patients and healthy controls ( n = 6 per group), including individuals with (Sm) and without (NS) a smoking history, were analyzed using standard approaches.
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