Nuclear Changes During Stress-Induced Aging in Mouse Cells
Author Information
Author(s): kar Bishnupriya, Liu Baohua, Zhou Zhongjun, Lam Yun W
Primary Institution: City University of Hong Kong and The University of Hong Kong
Hypothesis
How does sodium butyrate treatment affect the nucleolar proteome during cellular senescence?
Conclusion
The study shows that sodium butyrate treatment leads to significant changes in nucleolar organization and protein distribution during cellular senescence.
Supporting Evidence
- Sodium butyrate treatment led to the down-regulation of B23 protein and up-regulation of PARP and NDH II in the nucleolus.
- Chromatin was observed to accumulate within the nucleolus of treated cells.
- Similar nucleolar changes were observed in other senescence models, including mitoxantrone-treated cells.
Takeaway
When cells get old or stressed, their tiny parts called nucleoli change shape and how they work, which can help scientists understand aging better.
Methodology
The study used SILAC-based mass spectrometry to analyze protein changes in nucleoli from mouse fibroblast cells treated with sodium butyrate.
Participant Demographics
Mouse fibroblast cells (NIH3T3) were used in the study.
Digital Object Identifier (DOI)
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