scholarly journals Apoptosis regulator Bcl-2 is an independent prognostic marker for worse overall survival in triple-negative breast cancer patients

2017 ◽  
Vol 33 (1) ◽  
pp. 109-115 ◽  
Author(s):  
Petar Ozretic ◽  
Ilija Alvir ◽  
Bozena Sarcevic ◽  
Zeljko Vujaskovic ◽  
Zrinka Rendic-Miocevic ◽  
...  

Background: The objective of this study was to examine the prognostic significance of carbonic anhydrase IX (CAIX), an endogenous marker for tumor hypoxia; the cellular tumor antigen p53; and the apoptosis regulator Bcl-2, in triple-negative breast cancer (TNBC) patients. Methods: Immunohistochemically determined expression of CAIX, p53, Bcl-2 and proliferation factor Ki-67, analyzed in 64 paraffin-embedded TNBC tissue samples, was used to assess their relation to clinicopathological variables and prognostic implications for overall survival (OS). Results: Bcl-2 expression was negatively correlated with histological grade of tumor, while expression of p53 was positively correlated with the same clinical variable (p = 0.036 and p = 0.033, respectively). The p53 expression was also positively correlated with tumor size (p = 0.010). Survival analysis showed that patients with high Bcl-2 expression (above cutoff value determined by receiver operator characteristic [ROC] curve analysis) had shorter OS (p = 0.020). The same was observed for patients with tumors larger than 5 cm (p = 0.034) or positive lymph nodes (p = 0.004). Among all 3 examined markers, multivariate analysis showed that only Bcl-2 expression was a strong independent prognostic indicator for decreased OS (hazard ratio [HR] = 15.16, 95% confidence interval [95% CI], 2.881-79.727, p = 0.001). Conclusions: Elevated expression of Bcl-2 was an independent prognostic factor for poorer OS in TNBC and as such a significant marker for tumor aggressiveness.

2021 ◽  
Author(s):  
Shahan Mamoor

We mined published microarray data (1) to understand the most significant gene expression differences in the tumors of triple negative breast cancer patients based on survival following treatment: dead or alive. We observed significant transcriptome-wide differential expression of DnaJ (Hsp40) homolog, subfamily C, member 28, encoded by DNAJC28 when comparing the primary tumors of triple negative breast cancer patients dead or alive. Importantly, DNAJC28 expression was correlated with overall survival in patients with breast cancer. DNAJC28 may be of relevance as a biomarker or as a molecule of interest in understanding the etiology or progression of triple negative breast cancer.


PLoS ONE ◽  
2021 ◽  
Vol 16 (6) ◽  
pp. e0253176
Author(s):  
Katsuhiro Yoshikawa ◽  
Mitsuaki Ishida ◽  
Hirotsugu Yanai ◽  
Koji Tsuta ◽  
Mitsugu Sekimoto ◽  
...  

Introduction CD155 is an immune checkpoint protein. Its overexpression is an indicator of poor prognosis in some types of cancer. However, the significance of CD155 expression in patients with triple-negative breast cancer, and the relationship between CD155 and programmed death-ligand 1 (PD-L1) expression, have not yet been analyzed in detail. Methods Using immunohistochemical staining and tissue microarrays, we analyzed the expression profiles of CD155 and PD-L1 in 61 patients with triple-negative breast cancer. Relapse-free survival and overall survival rates were compared according to CD155 expression. The correlation between CD155 expression and clinicopathological factors, including PD-L1 expression (using SP142 and 73–10 assays), was also examined. Results CD155 expression was noted in 25 patients (41.0%) in this cohort. CD155 expression did not correlate with pathological stage, histological grade, Ki-67 labeling index, or stromal tumor-infiltrating lymphocytes. Only PD-L1 expression in tumor cells by SP142 assay significantly correlated with CD155 expression (p = 0.035); however, PD-L1 expression in tumor cells by 73–10 assay did not show a correlation (p = 0.115). Using the 73–10 assay, 59% of patients showed CD155 and/or PD-L1 expression in tumor cells. Moreover, using the SP142 assay, 63.3% of patients showed CD155 and/or PD-L1 expression in immune cells. CD155 expression did not correlate with either relapse-free survival or overall survival (p = 0.485 and 0.843, respectively). Conclusions CD155 may be a novel target for antitumor immunotherapy. The results of this study indicate that CD155 may expand the pool of candidates with triple-negative breast cancer who could benefit from antitumor immunotherapy.


2021 ◽  
Vol 11 ◽  
Author(s):  
Yongxia Zhang ◽  
Fengjie Liu ◽  
Han Zhang ◽  
Heng Ma ◽  
Jian Sun ◽  
...  

PurposeTo evaluate the value of radiomics analysis in contrast-enhanced spectral mammography (CESM) for the identification of triple-negative breast cancer (TNBC).MethodCESM images of 367 pathologically confirmed breast cancer patients (training set: 218, testing set: 149) were retrospectively analyzed. Cranial caudal (CC), mediolateral oblique (MLO), and combined models were built on the basis of the features extracted from subtracted images on CC, MLO, and the combination of CC and MLO, respectively, in the tumour region. The performance of the models was evaluated through receiver operating characteristic (ROC) curve analysis, the Hosmer-Lemeshow test, and decision curve analysis (DCA). The areas under ROC curves (AUCs) were compared through the DeLong test.ResultsThe combined CC and MLO model had the best AUC and sensitivity of 0.90 (95% confidence interval: 0.85–0.96) and 0.97, respectively. The Hosmer–Lemeshow test yielded a non-significant statistic with p-value of 0.59. The clinical usefulness of the combined CC and MLO model was confirmed if the threshold was between 0.02 and 0.81 in the DCA.ConclusionsMachine learning models based on subtracted images in CESM images were valuable for distinguishing TNBC and NTNBC. The model with the combined CC and MLO features had the best performance compared with models that used CC or MLO features alone.


2014 ◽  
Vol 25 ◽  
pp. iv572
Author(s):  
I.V. Bayoglu ◽  
B. Kucukzeybek ◽  
Y. Küçükzeybek ◽  
I. Yildiz ◽  
M. Akyol ◽  
...  

2021 ◽  
Author(s):  
Shahan Mamoor

We mined published microarray data (1) to understand the most significant gene expression differences in the tumors of triple negative breast cancer (TNBC) patients based on survival at time of analysis: dead or alive. The poly (ADP-ribose) polymerase family, member 15, PARP15, emerged as among the most differentially expressed genes, transcriptome-wide, when comparing the primary tumors of triple negative breast cancer patients dead or alive. PARP15 mRNA was present at significantly higher quantities in the tumors of TNBC patients alive. Importantly, PARP15 expression was significantly correlated with overall survival in basal subtype breast cancer, a molecular subtype sharing significant overlap with triple negative breast cancer. PARP15 may be of relevance as a biomarker or as a molecule of interest in understanding the etiology or progression of triple negative breast cancer.


Author(s):  
Ning Sun ◽  
Chenchen Li ◽  
Yue Teng ◽  
Yuxia Deng ◽  
Lin Shi

Background: Breast cancer is a common malignant tumor, threatening the general health of women worldwide. Estrogen-related receptor alpha (ERRα) is a member of nuclear receptor family and has been shown to involve in the pathophysiology of breast cancer. However, the specific relationship between ERRα and the triple negative breast cancer (TNBC), is not clear yet. Objective: This study examined the relevance between ERRα expression and different clinical features of breast cancer patients. Methods: The expression level of ERRα in 150 human breast cancer tissues (which contains 48 human triple negative breast cancer tissues) and 53 human benign breast tumor tissues using immunohistochemical staining. Results: ERRα protein level was significantly higher in breast cancer tissues than that in benign tumors. High expression of ERRα was significantly associated with the high grade but not the clinical stage and human epidermal growth factor receptor 2 of the breast cancer tissues. Its high expression was also positively correlated with triple negative breast cancer in pathological grade 2 and 3, but not in grade 1. high expression of ERRα was positively correlated with triple negative breast cancer in each clinical stage. In addition, high expression of ERRα was associated with shorter overall survival of breast cancer patients. Conclusion: In conclusion, highly expressed ERRα was associated with higher pathological grades triple-negative breast cancer and shorter overall survival. Future studies were required to recruit more patients to consolidate the current findings.


2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Ning Qing Liu ◽  
Tommaso De Marchi ◽  
Annemieke Timmermans ◽  
Anita M. A. C. Trapman-Jansen ◽  
Renée Foekens ◽  
...  

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. e11547-e11547
Author(s):  
T. H. Luu ◽  
S. Lau ◽  
R. Nelson ◽  
M. Ottochian ◽  
A. Garcia ◽  
...  

e11547 Background: Chemotherapy is the only systemic modality for patients with breast cancer lacking expression of estrogen, progesterone, and HER2 receptors (triple negative), a group comprising 15% of all breast cancers. The majority of such patients present with nodal metastases. The median time to distant recurrence is short: at 2.6 years, and median time to death is 4.2 years. (Dent R, et al. Triple-Negative Breast Cancer: Clinical Features and Patterns of Recurrence, Clin Cancer Res 2007; 13(15) August, 2007). The benefit from proceeding with adjuvant chemotherapy for ≤2cm, node negative triple negative breast cancer remains undefined. Patients and Methods: A retrospective chart review was conducted to assess the benefit of adjuvant chemotherapy for overall survival for stage I (T1N0) triple-negative breast cancer treated from 1996 to 2006 at City of Hope and USC. ER, PR, and HER2 status (as assessed by fluorescent in-situ hybridization (FISH) or immunohistochemistry) were reviewed and confirmed. Overall survival was defined as time from date of diagnosis to date of death. All patients received standard surgery ± radiation. Results: A total of 100 stage I triple-negative breast cancer patients were identified. The median age at diagnosis was 56 (range 27–91). Of the 100 patients, 59 received adjuvant chemotherapy: 38 received anthracycline-based, 17 received non-anthracycline-based regimens and 4 were unknown. Median length of follow-up was 4.0 years. No difference in overall survival was found in patients who received adjuvant chemotherapy (p-value = 0.94). Similarly, there was no difference between patients who received non-anthracycline-based chemotherapy versus those given anthracycline-based chemotherapy (p-value=0.17). The group of patients who received adjuvant chemotherapy were younger (51.8 y.o versus 61.5 y.o (p=0.0004)) and had larger tumor size (13.6mm versus 10.2mm (p=0.0002)). Lack of statistical significance may be related to the limited sample size. Conclusion: We did not find a statistically survival benefit of adjuvant chemotherapy in 100 triple negative stage I breast cancer patients. Further studies are needed to clarify the role of adjuvant chemotherapy in this group of patients. No significant financial relationships to disclose.


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