Abstract:
:TP53 gene mutation is associated with poor prognosis in breast cancer, but additional biomarkers that can further refine the impact of the p53 pathway are needed to achieve clinical utility. In this study, we evaluated a role for the HDMX-S/FL ratio as one such biomarker, based on its association with other suppressor mutations that confer worse prognosis in sarcomas, another type of cancer that is surveilled by p53. We found that HDMX-S/FL ratio interacted with p53 mutational status to significantly improve prognostic capability in patients with breast cancer. This biomarker pair offered prognostic utility that was comparable with a microarray-based prognostic assay. Unexpectedly, the utility tracked independently of DNA-damaging treatments and instead with different tumor metastasis potential. Finally, we obtained evidence that this biomarker pair might identify patients who could benefit from anti-HDM2 strategies to impede metastatic progression. Taken together, our work offers a p53 pathway marker, which both refines our understanding of the impact of p53 activity on prognosis and harbors potential utility as a clinical tool.
journal_name
Cancer Resjournal_title
Cancer researchauthors
Grawenda AM,Møller EK,Lam S,Repapi E,Teunisse AF,Alnæs GI,Børresen-Dale AL,Kristensen VN,Goding CR,Jochemsen AG,Edvardsen H,Bond GLdoi
10.1158/0008-5472.CAN-14-2637subject
Has Abstractpub_date
2015-02-15 00:00:00pages
698-708issue
4eissn
0008-5472issn
1538-7445pii
0008-5472.CAN-14-2637journal_volume
75pub_type
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