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Purification of Ubiquitinated p53 Proteins from Mammalian Cells
10:55

Purification of Ubiquitinated p53 Proteins from Mammalian Cells

Published on: March 21, 2022

P53 protein in proliferation, repair and apoptosis of cells

Ewelina Wawryk-Gawda1, Patrycja Chylińska-Wrzos, Marta Lis-Sochocka

  • 1Department of Histology and Embryology with Experimental Cytology Unit, Medical University in Lublin, ul. Radziwiłłowska 11, 20-080, Lublin, Poland, ewelina.wawryk@wp.pl.

Protoplasma
|September 18, 2013
PubMed

Insights

The p53 protein

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Oncology

Background:

  • The p53 protein is a crucial regulator of cellular processes, including DNA repair, apoptosis, senescence, and cell cycle progression.
  • p53 also plays a role in inhibiting angiogenesis and inducing oxidative shock.
  • Understanding p53 activity is vital in various biological contexts, including cancer research and drug development.

Purpose of the Study:

  • To investigate the activity and expression of the p53 protein in rat uterine epithelial cells following treatment with cladribine.
  • To compare p53 protein activity in cells undergoing apoptosis versus those with active DNA repair and high proliferation.

Main Methods:

  • Rats were treated with cladribine (2-CdA).
  • Uterine epithelial cells were collected at 24 hours and 4 weeks post-treatment.
  • p53 protein expression levels were analyzed in relation to apoptosis, DNA repair, and proliferation indices.

Main Results:

  • 24 hours post-cladribine treatment, stronger p53 protein expression was observed in cells with active apoptosis and inhibited proliferation.
  • 4 weeks post-treatment, elevated p53 protein expression correlated with genomic alterations, ongoing DNA repair, and high cell proliferation.

Conclusions:

  • Cladribine treatment significantly influences p53 protein activity in uterine epithelial cells, with distinct patterns observed at different time points.
  • p53 expression dynamics reflect a complex interplay between apoptosis, DNA repair, and proliferation following cladribine exposure.

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