The sculpting of somatic mutational landscapes by evolutionary forces and their impacts on aging-related disease.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing evolutionary theory and published literature without new primary human data or systematic review methodology.
PubMed 35726685 · doi:10.1002/1878-0261.13275
What was done
This narrative review synthesizes literature and conceptual frameworks concerning how evolutionary forces and tissue microenvironments shape somatic mutational landscapes across aging, and how clonal expansions of cancer-associated mutations influence malignancy and non-malignant disease development.
What was found
The abstract provides no numerical data or statistical findings. It outlines qualitative concepts: normal aging tissues accumulate clones driven by cancer-associated mutations; young tissues actively suppress malignant outgrowth via conserved mechanisms, whereas aging microenvironments promote malignant clonal expansion and tissue decline as evolutionary pressure wanes after peak reproductive years.
Why it matters
The paper contextualizes aging-related disease within an evolutionary framework, explaining how altered somatic selective pressures and declining microenvironmental suppression enable oncogenic clones to proliferate late in life.
Limits
As a narrative review, it presents conceptual models and syntheses without new primary empirical data or systematic search methods. No quantitative estimates, cohort details, or sample sizes are reported in the abstract.
Cited by
- supports Cancer incidence increases with age primarily because dividing cells accumulate mutations and DNA damage over time.