P4-09-02: G Protein-Coupled Estrogen Receptor 1 Positively Correlates with Estrogen Receptor a Expression and Increased Distant Disease-Free Survival of Breast Cancer Patients.

Author(s):  
FLM Leeb-Lundberg ◽  
M Sjöström ◽  
S Broselid ◽  
K Jirström ◽  
M Belting ◽  
...  
2002 ◽  
Vol 20 (5) ◽  
pp. 1304-1310 ◽  
Author(s):  
Roman Rouzier ◽  
Jean-Marc Extra ◽  
Jerzy Klijanienko ◽  
Marie-Christine Falcou ◽  
Bernard Asselain ◽  
...  

PURPOSE: To determine the incidence and prognostic significance of eradication of cytologically proven axillary lymph node metastases in breast cancer patients treated with primary chemotherapy. PATIENTS AND METHODS: Between January 1985 and December 1994, 152 breast cancer patients with invasive T1 to T3 tumors and axillary metastases cytologically proven by fine-needle sampling underwent primary chemotherapy followed by lumpectomy or mastectomy, level I and II axillary lymph node dissection, and irradiation. We studied pathologic complete responses (pCRs) of axillary nodes and breast tumors, as well as predictors of distant metastases. RESULTS: Thirty-five patients (23%) had axillary pCRs, and 20 patients (13.2%) had pCRs of primary breast tumors. Scarff-Bloom-Richardson grade 3 tumors (P = .04) and a clinical response to chemotherapy ≥ 50% (P = .003) were associated with negative axillary status at dissection. An initial tumor size ≤ 3 cm (63 patients) was associated with pCR of the primary tumor (P = .02) but not with complete histologic clearance of axillary lymph nodes. The median length of follow-up was 75 months. In the univariate analysis, age greater than 40 years (P = .003), absence of residual nodal disease (P = .01), and pCR of the tumor (P = .05) were associated with better distant disease-free survival. Five-year distant disease-free survival rates were 73.5% ± 14.9% among patients with no involved nodes at the time of surgery and 48.7% ± 9.2% among patients with residual nodal disease. In the multivariate Cox regression analysis, parameters associated with poor distant disease-free survival were age ≤ 40 years (P = .002), persistence of nodal involvement (P = .03), and S-phase fraction greater than 4% (P = .02). CONCLUSION: Our results suggest that axillary status is a better prognostic factor than response of the primary tumor to primary chemotherapy.


2020 ◽  
Vol 33 (4) ◽  
pp. 137-144
Author(s):  
Guillermo Peralta-Castillo ◽  
Antonio Maffuz-Aziz ◽  
Mariana Sierra-Murguía ◽  
Sergio Rodriguez-Cuevas

Cancers ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 511 ◽  
Author(s):  
Viktor Hlavac ◽  
Maria Kovacova ◽  
Katerina Elsnerova ◽  
Veronika Brynychova ◽  
Renata Kozevnikovova ◽  
...  

The aim of our study was to set up a panel for targeted sequencing of chemoresistance genes and the main transcription factors driving their expression and to evaluate their predictive and prognostic value in breast cancer patients. Coding and regulatory regions of 509 genes, selected from PharmGKB and Phenopedia, were sequenced using massive parallel sequencing in blood DNA from 105 breast cancer patients in the testing phase. In total, 18,245 variants were identified of which 2565 were novel variants (without rs number in dbSNP build 150) in the testing phase. Variants with major allele frequency over 0.05 were further prioritized for validation phase based on a newly developed decision tree. Using emerging in silico tools and pharmacogenomic databases for functional predictions and associations with response to cytotoxic therapy or disease-free survival of patients, 55 putative variants were identified and used for validation in 805 patients with clinical follow up using KASPTM technology. In conclusion, associations of rs2227291, rs2293194, and rs4376673 (located in ATP7A, KCNAB1, and DFFB genes, respectively) with response to neoadjuvant cytotoxic therapy and rs1801160 in DPYD with disease-free survival of patients treated with cytotoxic drugs were validated and should be further functionally characterized.


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