p53 status of newly established acute myeloid leukaemia cell lines
1999

p53 Status in New Acute Myeloid Leukaemia Cell Lines

Sample size: 8 publication Evidence: moderate

Author Information

Author(s): Zheng A, Castren K, Säily M, Savolainen E-R, Koistinen P, Vähäkangas K

Primary Institution: University of Oulu

Hypothesis

What is the status of the p53 gene and protein in newly established acute myeloid leukaemia cell lines?

Conclusion

The p53 protein is consistently expressed in all newly established acute myeloid leukaemia cell lines, despite no mutations in the p53 gene.

Supporting Evidence

  • There were no mutations in the p53 gene in any of the cell lines.
  • The p53 protein was clearly and consistently expressed in all of these cell lines.
  • The p53 protein was located in both the nucleus and the cytoplasm of all the cell lines.
  • The p53 protein was mostly in a conformation typical of the mutated protein.

Takeaway

Scientists looked at some new cancer cells and found that a protein called p53 was present, even though the gene for it wasn't changed.

Methodology

The study analyzed the p53 gene and protein status using techniques like immunohistochemistry, Western blotting, and flow cytometry.

Participant Demographics

The cell lines represent blast cells from de novo leukaemia patients in first remission or patients with relapsed and chemotherapy-resistant disease.

Digital Object Identifier (DOI)

10.1038/sj.bjc.6690064

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