Reference Detail

Ref Type

Journal Article

PMID

(16243804)

Authors

Xu Y, Yao L, Ouyang T, Li J, Wang T, Fan Z, Lin B, Lu Y, Xie Y

Title

p53 Codon 72 polymorphism predicts the pathologic response to neoadjuvant chemotherapy in patients with breast cancer.

Journal	Vol	Issue	Date	Pages	Journal Short Title
Clinical cancer research : an official journal of the American Association for Cancer Research	11	20	2005 Oct 15	7328-33	Clin Cancer Res

URL

Abstract Text

Recent studies have highlighted that the p53 codon 72 polymorphism plays a crucial role in modulating wild-type p53 apoptotic capacity, and as such may influence the response to chemotherapy. Thus, the purpose of this study was to investigate whether the p53 codon 72 polymorphism might influence pathologic response to neoadjuvant chemotherapy in primary breast cancer.One hundred and ten operable breast cancer patients received anthracycline-based neoadjuvant chemotherapy and p53 codon 72 polymorphism status was analyzed by PCR-RFLP.The distribution of initial clinical stage, tumor size, estrogen receptor or progesterone receptor status, menopausal status, or erbB2 expression was not significantly different among the polymorphic variants. However, we found that only 13% (3 of 23) of patients with the Pro/Pro variant had a good pathologic response, defined as a complete pathologic response or minimal residual disease. In comparison, 40% (22 of 55) or 37.5% (12 of 32) of patients with the Pro/Arg or Arg/Arg variant had a good pathologic response (P = 0.019). Moreover, patients with the Pro/Pro variant were more likely to have a positive axillary lymph node status than those with the Pro/Arg or Arg/Arg variant (P = 0.007). Furthermore, in multivariate analysis, p53 codon 72 polymorphism was found to be a strong predictor of pathologic response (odds ratio 6.7, 95% confidence interval, 1.4-31.2; P = 0.016).Our study indicates that breast cancer patients with the Pro/Pro variant may be less sensitive to anthracycline-based treatment than those with the Pro/Arg or Arg/Arg variant and suggests that analysis of p53 codon 72 polymorphism may provide a simple predictive marker for selecting the right breast cancer patients to anthracycline-based neoadjuvant chemotherapy in clinical setting.

Filtering

Case insensitive filtering will display rows if any text in any cell matches the filter term
Use simple literal full or partial string matches
Separate multiple filter terms with a space. Any order may be used (i. e. a b c and c b a are equivalent )
Filtering will only apply to rows that are already loaded on the page. Filtering has no impact on query parameters.
Use quotes to match on a longer phrase with spaces (i.e. "mtor c1483f")

Sorting

Generally, the default sort order for tables is set to be first column ascending; however, specific tables may set a different default sort order.
Click on any column header arrows to sort by that column
Hold down the Shift key and click multiple columns to sort by more than one column. Be sure to set ascending or descending order for a given column before moving on to the next column.

Molecular Profile	Treatment Approach

Gene Name	Source	Synonyms	Protein Domains	Gene Description	Gene Role

Therapy Name	Drugs	Efficacy Evidence	Clinical Trials

Drug Name	Trade Name	Synonyms	Drug Classes	Drug Description

Gene	Variant	Impact	Protein Effect	Variant Description	Associated with drug Resistance

Molecular Profile	Indication/Tumor Type	Response Type	Therapy Name	Approval Status	Evidence Type	Efficacy Evidence	References
TP53 P72R	breast cancer	predicted - sensitive	Cyclophosphamide + Fluorouracil + Pirarubicin	Phase I	Actionable	In a Phase I trial, breast cancer patients harboring TP53 P72R were reported to have a better response to anthracycline-based neoadjuvant therapies, including pirarubicin in combination with Cytoxan (cyclophosphamide) and Adrucil (fluorouracil) (PMID: 16243804).	16243804
TP53 P72R	breast cancer	predicted - sensitive	Cyclophosphamide + Doxorubicin + Fluorouracil	Phase I	Actionable	In a Phase I trial, breast cancer patients harboring TP53 P72R were reported to have a better response to anthracycline-based neoadjuvant therapies, including Adriamycin (doxorubicin) in combination with Cytoxan (cyclophosphamide) and Adrucil (fluorouracil) (PMID: 16243804).	16243804
TP53 P72R	breast cancer	predicted - sensitive	Cyclophosphamide + Epirubicin + Fluorouracil	Phase I	Actionable	In a Phase I trial, breast cancer patients harboring TP53 P72R were reported to have a better response to anthracycline-based neoadjuvant therapies, including Ellence (epirubicin) in combination with Cytoxan (cyclophosphamide) and Adrucil (fluorouracil) (PMID: 16243804).	16243804