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Detection of Aggregation-Prone Behavior in Mutant P53 V157F Breast Cancer Cells Using Multipoint Thioflavin T Fluorescence
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Tp53/p53 status in keratoacanthomas.

Sarita Joshi1,2, Aasa R Schjølberg1, Per Olaf Ekstrøm3

  • 1Department of Pathology, Oslo University Hospital, Rikshospitalet, Oslo, Norway.

Journal of Cutaneous Pathology
|March 30, 2016
PubMed
Summary
This summary is machine-generated.

This study investigated the p53 protein in keratoacanthoma (KA), a common skin tumor. Results show TP53 mutations are frequent in KA and linked to elevated p53 levels, suggesting its role in tumor development.

Keywords:
Tp53 mutationkeratoacanthomap53

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Area of Science:

  • Dermatology
  • Oncology
  • Molecular Biology

Background:

  • Keratoacanthoma (KA) is a rapidly growing, self-regressing skin neoplasm.
  • The pro-apoptotic p53 protein's role in KA lifecycle is not fully understood.

Purpose of the Study:

  • To investigate the p53 protein status during KA proliferation, maturation, and regression.
  • To determine the frequency and significance of TP53 mutations in KA.

Main Methods:

  • Analyzed 124 KAs for clinical and histopathological features.
  • Assessed TP53 mutations via capillary electrophoresis and p53 protein levels via immunohistochemistry.

Main Results:

  • TP53 mutations found in 39.5% of KAs, associated with high p53 protein levels and lesion age.
  • High p53 levels correlated with atypia and, borderline, with infiltration.
  • Elevated p53 levels linked to gene mutations in transplanted KAs.

Conclusions:

  • High frequency of TP53 mutations observed in KA.
  • Increased p53 protein levels are associated with TP53 mutations.
  • Findings suggest a significant role for p53 in keratoacanthoma development.