Continued Stabilization of the Nuclear Higher-Order Structure of Post-Mitotic Neurons In Vivo
2011

Stabilization of Nuclear Structure in Neurons

publication Evidence: moderate

Author Information

Author(s): Alva-Medina Janeth, Maya-Mendoza Apolinar, Dent Myrna A. R., Aranda-Anzaldo Armando

Primary Institution: Laboratorio de Biología Molecular y Neurociencias, Facultad de Medicina, Universidad Autónoma del Estado de México

Hypothesis

The study investigates the continued stabilization of the nuclear higher-order structure (NHOS) in post-mitotic neurons throughout post-natal life.

Conclusion

The stabilization of the NHOS in neurons is determined by thermodynamic and structural constraints, independent of transcriptional activity.

Supporting Evidence

  • The NHOS of neurons continues to stabilize throughout post-natal life.
  • This stabilization occurs without changes in the post-mitotic state or transcriptional activity.
  • Neurons exhibit a highly stable NHOS that may serve as a non-genetic basis for their permanent post-mitotic state.

Takeaway

As neurons grow, their nuclear structure becomes more stable, which helps them stay in a state where they don't divide anymore.

Methodology

The study compared the NHOS in rat neurons from different post-natal ages using various biochemical and imaging techniques.

Participant Demographics

Male Wistar rats of various post-natal ages.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0021360

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