Review: cellular senescence and inflammaging in intracranial aneurysm wall degeneration
This review links aging to intracranial aneurysm formation, growth and rupture, focusing on senescent vessel cells, chronic inflammation and wall degeneration; it notes inconsistent age–rupture associations across natural-history studies and discusses senolytic and senomorphic strategies as emerging, not established, approaches. [1]
Automatic summary · not editorially reviewed
The key findings
The review states that aging is a major risk factor for the formation, growth and rupture of intracranial aneurysms, but the biological mechanisms remain incompletely understood. [1]
Senescent endothelial and smooth muscle cells release pro-inflammatory cytokines, matrix-degrading enzymes and oxidative stress mediators, which may contribute to extracellular matrix degradation and progressive weakening of the aneurysm wall. [1]
The review reports an inconsistent association between age and aneurysm rupture across natural-history studies and discusses senolytics and senomorphics as emerging therapeutic strategies. [1]
The source at a glance
- Study type / format
- Narrative review (abstract only)
- Population / context
- Intracranial aneurysms and the vascular biology of aging, as discussed in the review
- Summary based on
- Study abstract
- Original publication
- August 27, 2026
Aging as risk factor in aneurysm biology
The review states that aging is a major risk factor for the formation, growth and rupture of intracranial aneurysms, while the biological mechanisms remain incompletely understood. Beyond chronological aging, it describes vascular aging as driven by cellular senescence, chronic inflammation and hemodynamic stress, which together are said to contribute to aneurysm wall degeneration. The authors synthesize current evidence on aging in intracranial aneurysm biology, focusing on the interplay between senescent cells, inflammaging and vascular remodeling.
Supporting source [1]
Senescent cells and wall weakening
Senescent endothelial and smooth muscle cells show a senescence-associated secretory phenotype, described as releasing pro-inflammatory cytokines, matrix-degrading enzymes and oxidative stress mediators. These factors may contribute to degradation of the extracellular matrix, recruitment of immune cells and progressive weakening of the aneurysm wall. The review also discusses how aging-related changes in vascular biology may modify the response to hemodynamic forces and to therapeutic interventions.
Supporting source [1]
Unresolved age–rupture link and proposed therapies
The review notes an inconsistent association between age and aneurysm rupture across natural-history studies and discusses methodological factors that may contribute to this unresolved heterogeneity. It explores emerging therapeutic strategies targeting aging pathways, including senolytics and senomorphics, as potential approaches for stabilizing aneurysms and preventing rupture. The authors suggest that understanding mechanistic links between aging and aneurysm pathophysiology may open new avenues for risk stratification and disease-modifying treatments.
Supporting source [1]
How to interpret this
This is a review; the abstract does not report a systematic search, study selection, sample sizes or follow-up, and the full text was not reviewed. The age–rupture association is described as inconsistent across natural-history studies. Senolytics and senomorphics are discussed as emerging potential strategies, not established treatments.
Based on the study abstract; the full paper, tables and supplementary data were not reviewed.
Source & supporting passages
Maeda T, Sato H, Nakano Y, Kobayashi H, Take Y, Nisson PL, Cisneros O, Rahmani R, Jackson B, Castro JC, Tatsumi M, Patel G, Little EL, Jackson H, Lawton MT, Hashimoto T, Sato H. · europepmc.org · August 27, 2026