The abstract is read at the publisher; the summary is JClub's.
Aging in Caenorhabditis elegans drives a widespread, consistent shift in subcellular architecture that emerges abruptly at midlife, termed the midlife architectural state shift (MASS).
- Why it matters: Single-cell or limited-organellar comparisons can’t capture organism-wide structural dynamics across adult life, leaving how and when remodeling occurs unclear.
- What they did: The authors built Multiorganelle Mapper (MoMA) to simultaneously image six organelles across all somatic cell types in fully intact living animals, then mapped architecture across adulthood and tested MASS with targeted RNAi.
- The result: MASS resembles a generalized reactive state that can be triggered by diverse homeostatic challenges, and it coincides with and can be driven by midlife physiological changes, implying coordinated response to the aged organismal state.
The findingWhy it mattersWhat they didThe result
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