New biomarkers to predict the evolution of in situ breast cancers.
Biomed Res Int
; 2014: 159765, 2014.
Article
in En
| MEDLINE
| ID: mdl-25243117
ABSTRACT
BACKGROUND:
Genomic studies have shown that gene expression profiles are similar in in situ (CIS) and invasive breast cancers, suggesting that several biofunctional modifications of the transformation process occur before or during the development of CIS lesion.METHODS:
We investigated 3 biomarkers in 44 patients with CIS TG2 (transglutaminase 2), HJURP (Holliday junction recognition protein), and HIF-1α (hypoxia inducible factor-1 alpha).RESULTS:
TG2 was more highly expressed than the other two markers and significantly more so in stromal than in tumor cells. HIF-1α evaluation showed a higher expression in both tumor and stromal cells in patients with relapsed G3 tumors, indicating a potential role of this marker in CIS evolution. A greater than sevenfold higher risk of relapse (P = 0.050) was observed in patients highly expressing HJURP in stroma and a tenfold higher recurrence risk (P = 0.026) was seen in those with a higher stromal HIF-1α expression. An important increase in risk accuracy (AUC 0.80) was obtained when HIF-1α and HJURP were evaluated together.CONCLUSIONS:
Despite the limited number of relapsed patients, we formulated some hypotheses on the factors responsible for malignant evolution and recurrence which are now being tested in a large case series with a longer follow-up.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Breast Neoplasms
/
Carcinoma in Situ
/
Biomarkers, Tumor
/
Disease Progression
/
DNA-Binding Proteins
/
Hypoxia-Inducible Factor 1, alpha Subunit
Type of study:
Prognostic_studies
/
Risk_factors_studies
Limits:
Adult
/
Aged
/
Female
/
Humans
/
Middle aged
Language:
En
Journal:
Biomed Res Int
Year:
2014
Document type:
Article
Affiliation country:
Italy