Abstract 5243: Prognostic value of nuclear and non-nuclear estrogen receptor expression by immunohistochemistry with phosphor-integrated dots in hormone receptor-positive early breast cancer

Author(s):  
Zhaorong Guo ◽  
Hiroshi Tada ◽  
Narufumi Kitamura ◽  
Yoh Hamada ◽  
Shin-ichi Hayashi ◽  
...  
2017 ◽  
Vol 35 (15_suppl) ◽  
pp. 536-536
Author(s):  
Christian F. Singer ◽  
Stephan W Jahn ◽  
Margaretha Rudas ◽  
Zsuzsanna Bago-Horvath ◽  
Florian Fitzal ◽  
...  

536 Background: We have recently demonstrated that urokinase Plasminogen Activator (uPA), together with its inhibitor PAI-1, have prognostic value in hormone-receptor positive early breast cancer, and can be measured in FFPE archived tumor samples. We have now aimed to validate the prognostic role of uPA protein expression in FFPE archived tumor samples in an independent cohort of endocrine-treated breast cancer patients. Methods: 303 postmenopausal women with hormone receptor–positive, early breast cancer who had received 5 years of endocrine therapy in the prospectively designed ABCSG-08 trial, and in whom FFPE tumor tissue was available, were included in this analysis. Stromal uPA and PAI-1 protein expression was evaluated by immunohistochemistry and correlated with distant recurrence-free survival (DRFS) and overall survival (OS). Results: Stromal uPA was detected in 132 of 297 tumors (44.4%), and 74 out of 269 samples (27.5%) exhibited stromal PAI-1, while co-expression of both proteins was found in 48 of 294 (16.3%) samples. Neither uPA nor PAI-1 expression were associated with tumor size, age, nodal status, grading, or receptor status. Patients whose tumor stroma expressed uPA protein were more likely to have a shorter DRFS (adjusted HR for relapse: 2.78; 95% CI 1.31-5.93; p=0.008 Cox regression analysis) and OS (adjusted HR for death: 1.29; 95% CI 0.86-12.50; p=0.161) than women without uPA expression. No such association was observed for PAI-1 and for the uPA/PAI1 ratio. After a median follow-up of 5.6 years women with uPA-positive tumors experienced a significantly shorter DRFS (93.3% vs 84.8%; p<0.013 log rank test) and tended to have a worse OS (83.0.4% vs 77.3%; p=0.106) compared to women with uPA negative tumors. Conclusions: By confirming the clinical utility of stromal uPA IHC in archived breast cancer samples from an independent prospective randomized trial, we now provide level 1b evidence for a prognostic role of stromal uPA in women with endocrine-responsive early breast cancer.


2016 ◽  
Vol 9 (2) ◽  
pp. 114-123 ◽  
Author(s):  
Hamdy A. Azim ◽  
Loay Kassem ◽  
Isabelle Treilleux ◽  
Qing Wang ◽  
Mona Abu El Enein ◽  
...  

2020 ◽  
Vol 12 ◽  
pp. 175883591988899
Author(s):  
Sara Bravaccini ◽  
Giuseppe Bronte ◽  
Emanuela Scarpi ◽  
Sara Ravaioli ◽  
Roberta Maltoni ◽  
...  

Background: In the Italian Breast Cancer Intergroup Studies (IBIS) 3 phase III trial, we compared cyclophosphamide, methotrexate, 5-fluorouracil (CMF) alone to sequential epirubicin/CMF regimens in patients with rapidly proliferating early breast cancer (RPEBC). We performed a post hoc analysis in the subgroup of patients with hormone-receptor-positive RPEBC on the prognostic role of progesterone receptor (PgR) status. Methods: RPEBC was defined by thymidine labeling index (TLI) >3% or grade 3 or S-phase >10% or Ki67 >20%. We analyzed 466 patients with hormone-receptor-positive RPEBC receiving sequential epirubicin/CMF regimens followed by tamoxifen, and for whom the status of ER and PgR was available. Results: Considering both cut-off values of 10% and 20%, PgR expression was significantly associated with age, menopausal status, and ER expression; HER2 status was associated with PgR status only at a cutoff value of 20% PgR. Upon univariate analysis, tumor size, nodal status, and PgR were significantly associated with disease-free survival (DFS) and overall survival (OS), while age class and local treatment type were associated only with DFS. Patients with PgR <20% showed lower 5- and 10-year DFS [hazard ratio (HR) = 1.48; 95%CI: 1.01–2.18; p = 0.044] and OS (HR = 1.85; 95%CI: 1.08–3.19, p = 0.025) rates compared with patients with PgR ⩾20%. Upon multivariate analysis, only tumor size, nodal status, and PgR were independent prognostic factors. Conclusions: Our results highlight the independent prognostic relevance of PgR expression in patients with hormone-receptor-positive RPEBC treated with adjuvant chemotherapy and endocrine therapy, where the definition of prognostic subgroups is still a major need.


Oncology ◽  
2018 ◽  
Vol 96 (1) ◽  
pp. 14-24 ◽  
Author(s):  
Raz Mutai ◽  
Hadar Goldvaser ◽  
Tzipora Shochat ◽  
Idit Peretz ◽  
Aaron Sulkes ◽  
...  

2007 ◽  
Vol 25 (25) ◽  
pp. 3846-3852 ◽  
Author(s):  
Giuseppe Viale ◽  
Meredith M. Regan ◽  
Eugenio Maiorano ◽  
Mauro G. Mastropasqua ◽  
Patrizia Dell'Orto ◽  
...  

Purpose To evaluate locally versus centrally assessed estrogen (ER) and progesterone (PgR) receptor status and the impact of PgR on letrozole adjuvant therapy compared with tamoxifen in postmenopausal women with early breast cancer. Patients and Methods Breast International Group (BIG) 1-98 randomly assigned 8,010 patients to four arms comparing letrozole and tamoxifen with sequences of each agent. The Central Pathology Office received material for 6,549 patients (82%), of which 79% were assessable (6,291 patients). Prognostic and predictive value of both local and central hormone receptor expression on disease-free survival (DFS) were evaluated among 3,650 assessable patients assigned to the monotherapy arms. Prognostic value and the treatment effect were estimated for centrally assessed ER and PgR expression levels using the Subpopulation Treatment Effect Pattern Plot. Results Central review confirmed 97% of tumors as hormone receptor–positive (ER and/or PgR ≥10%). Of 105 tumors locally ER-negative, 73 were found to have more than 10% positive cells, and eight had 1% to 9%. Of 6,100 tumors locally ER positive, 66 were found to have no staining, and 54 had only 1% to 9%. Discordance was more marked for PgR than ER. Patients with tumors reclassified centrally as ER-negative, or as hormone receptor–negative, had poor DFS. Centrally assessed ER and PgR showed prognostic value. Among patients with centrally assessed ER-expressing tumors, letrozole showed better DFS than tamoxifen, irrespective of PgR expression level. Conclusion Central review changed the assessment of receptor status in a substantial proportion of patients, and should be performed whenever possible in similar trials. PgR expression did not affect the relative efficacy of letrozole over tamoxifen.


2011 ◽  
Vol 128 (1) ◽  
pp. 273-281 ◽  
Author(s):  
A. C. Regierer ◽  
R. Wolters ◽  
C. Kurzeder ◽  
A. Wöckel ◽  
I. Novopashenny ◽  
...  

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Fabio Puglisi ◽  
Lorenzo Gerratana ◽  
Matteo Lambertini ◽  
Marcello Ceppi ◽  
Luca Boni ◽  
...  

AbstractThe GIM2 phase III trial demonstrated the benefit of dose-dense chemotherapy in node-positive early breast cancer (eBC). To better define the dose-dense effect in the hormone receptor-positive subgroup, we evaluated its benefit through a composite measure of recurrence risk. We conducted an ancillary analysis of the GIM2 trial evaluating the absolute treatment effect through a composite measure of recurrence risk (CPRS) in patients with hormone receptor-positive HER2-negative eBC. CPRS was estimated through Cox proportional hazards models applied to the different clinicopathological features. The treatment effect was compared to the values of CPRS by using the Sub-population Treatment Effect Pattern Plot (STEPP) process. The Disease-Free Survival (DFS)-oriented STEPP analysis showed distinct patterns of relative treatment effect with respect to CPRS. Overall, 5-year DFS differed across CPRS quartiles ranging from 95.2 to 66.4%. Each CPRS quartile was characterized by a different patients’ composition, especially for age, lymph node involvement, tumor size, estrogen and progesterone receptor expression, and Ki-67. A number needed to treat of 154 and 6 was associated with the lowest and the highest CPRS quartile, respectively. Dose-dense adjuvant chemotherapy showed a consistent benefit in node-positive eBC patients with hormone receptor-positive HER2-negative disease, but its effect varied according to CPRS.


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