p53 missense but not truncation mutations are associated with low levels of p21CIP1/WAF1 mRNA expression in primary human sarcomas
2001
p53 Mutations and p21CIP1/WAF1 Expression in Sarcomas
Sample size: 71
publication
Author Information
Author(s): Mousses S, Gokgoz N, Wunder J S, Ozcelik H, Bull S, Bell R S, Andrulis I L
Primary Institution: Samuel Lunenfeld Research Institute
Hypothesis
The presence of p53 mutations is related to the in vivo expression of p21CIP1/WAF1 mRNA in sarcomas.
Conclusion
Different types of p53 mutations can have different effects on the expression of p21CIP1/WAF1 in human sarcomas.
Supporting Evidence
- Most tumors with p53 mutations expressed low levels of p21CIP1/WAF1 mRNA.
- A group of tumors with p53 mutations exhibited normal or higher levels of p21CIP1/WAF1 mRNA.
- The p53 mutations in the latter group were predominantly nonsense mutations.
Takeaway
This study looked at tumors to see how changes in a gene called p53 affect another gene that helps control cell growth. They found that not all changes in p53 lead to the same results.
Methodology
Measured p21CIP1/WAF1 mRNA levels in primary bone and soft tissue tumors with known p53 status.
Digital Object Identifier (DOI)
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