scholarly journals Post-GWAS gene–environment interplay in breast cancer: results from the Breast and Prostate Cancer Cohort Consortium and a meta-analysis on 79 000 women

2014 ◽  
Vol 23 (19) ◽  
pp. 5260-5270 ◽  
Author(s):  
Myrto Barrdahl ◽  
Federico Canzian ◽  
Amit D. Joshi ◽  
Ruth C. Travis ◽  
Jenny Chang-Claude ◽  
...  
2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Hanjiang Xu ◽  
Fan Mo ◽  
Jun Zhou ◽  
Zongyao Hao ◽  
Xianguo Chen ◽  
...  

Background and Objective. Selenoprotein P (SEPP1) is the major selenoprotein in plasma. Previous studies have demonstrated that SEPP1 expression was reduced in human prostate and colon tumors. Nowadays, studies concerning SEPP1 gene polymorphisms and cancer susceptibility have been extensively investigated, whereas results from these studies remain debatable rather than conclusive. Thus, we performed the present meta-analysis to comprehensively assess the association between two common polymorphisms (rs3877899 and rs7579) in SEPP1 and cancer susceptibility. Method. We search the PubMed, Embase, Google Scholar, and Wanfang (China) databases (up to December 1, 2020) to identify all eligible publications. The pooled odds ratio (OR) correspondence with 95% confidence interval (CI) was calculated to evaluate the associations. Results. Finally, nine eligible studies with 7,157 cases and 6,440 controls and five studies with 2,278 cases and 2,821 controls were enrolled in rs3877899 and rs7579 polymorphisms, individually. However, a null significant association was detected between the two polymorphisms in SEPP1 and susceptibility to colorectal, breast, and prostate cancer in all comparison models. Subsequently, subgroup analysis based on tumor type, no significant association was identified for prostate, breast, and colorectal cancer. In addition, when the stratification analyses were conducted by the source of control, HWE status, and ethnicity, yet no significant association was found. Conclusions. The current meta-analysis shows that SEPP1 rs3877899 and rs7579 polymorphisms may not be associated with susceptibility to colon cancer, breast cancer, and prostate cancer, and further well-designed studies with a larger sample size are warranted to validate our findings.


Cancers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 2872
Author(s):  
Aaron R. Waddell ◽  
Haojie Huang ◽  
Daiqing Liao

The CREB-binding protein (CBP) and p300 are two paralogous lysine acetyltransferases (KATs) that were discovered in the 1980s–1990s. Since their discovery, CBP/p300 have emerged as important regulatory proteins due to their ability to acetylate histone and non-histone proteins to modulate transcription. Work in the last 20 years has firmly established CBP/p300 as critical regulators for nuclear hormone signaling pathways, which drive tumor growth in several cancer types. Indeed, CBP/p300 are critical co-activators for the androgen receptor (AR) and estrogen receptor (ER) signaling in prostate and breast cancer, respectively. The AR and ER are stimulated by sex hormones and function as transcription factors to regulate genes involved in cell cycle progression, metabolism, and other cellular functions that contribute to oncogenesis. Recent structural studies of the AR/p300 and ER/p300 complexes have provided critical insights into the mechanism by which p300 interacts with and activates AR- and ER-mediated transcription. Breast and prostate cancer rank the first and forth respectively in cancer diagnoses worldwide and effective treatments are urgently needed. Recent efforts have identified specific and potent CBP/p300 inhibitors that target the acetyltransferase activity and the acetytllysine-binding bromodomain (BD) of CBP/p300. These compounds inhibit AR signaling and tumor growth in prostate cancer. CBP/p300 inhibitors may also be applicable for treating breast and other hormone-dependent cancers. Here we provide an in-depth account of the critical roles of CBP/p300 in regulating the AR and ER signaling pathways and discuss the potential of CBP/p300 inhibitors for treating prostate and breast cancer.


BMC Cancer ◽  
2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Zheng-Ju Ren ◽  
De-Hong Cao ◽  
Qin Zhang ◽  
Peng-Wei Ren ◽  
Liang-Ren Liu ◽  
...  

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 19659-19659
Author(s):  
T. Helsten ◽  
M. Corr ◽  
J. E. Mortimer

19659 Background: Bone metastases produce an imbalance in osteoblast and osteoclast activity. While metastases from prostate cancer are osteoblastic, metastases from breast cancer may be osteolytic, osteoblastic or mixed. The wnt/frizzled pathway is involved in maturation of osteoblasts and in adult bone homeostasis. We explored the wnt antagonists dickkopf (DKK1) and frizzled related protein (FRP) as potential biomarkers in bone metastasis after ZA treatment. Methods: This is a pilot cohort study in bisphosphonate naive breast and prostate cancer patients with bone metastases. Cancer therapy was not specified. Patients received 2 monthly doses of ZA 4 mg IV. Pre- and post-treatment (day 60) sera were collected for measurement of FRP and DKK1, along with IL-6, calcium, creatinine and bone-specific alkaline phosphatase (BAP, a marker of osteoblast activity). Primary endpoint: mean change in FRP and DKK1; Secondary endpoints: correlation of biomarkers with each other and comparison of breast vs. prostate cancer patients. Biomarkers were measured using standard ELISA assays. Statistics: comparison of means = student t-test, correlation coefficients = Pearson. Results: Mature data from 14 patients are reported here, 9 with breast and 5 with prostate cancer. Mean age = 61 years (range 42–89). Two breast cancer patients were premenopausal. One prostate and 3 breast cancer patients received chemotherapy; all others were treated hormonally. After ZA, calcium decreased in all patients (p = 0.09). BAP decreased in all but 1 breast and 1 prostate cancer patient (mean decrease 20.0, p = 0.16). IL-6 was undetectable in most patients. FRP decreased in all but 4 patients (mean decrease 6.2, p = 0.13). There was no discernable pattern for DKK1. Pre-treatment DKK1 correlated with FRP (p = 0.01, r2 = 0.39), but there was no correlation post-treatment. Post-treatment DKK1 correlated with both serum calcium (p = 0.04, r2 = 0.49) and BAP (p = 0.005, r2 = 0.65). There was no difference between breast and prostate cancer patients. Conclusions: It is feasible to measure DKK1 and FRP in patients with malignant bone disease. Treatment with ZA has measurable effects upon these and other serum markers. Further studies with more patients are needed to evaluate their potential as biomarkers. No significant financial relationships to disclose.


2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e24144-e24144
Author(s):  
Heng Yang ◽  
Randall W Knoebel ◽  
Sandeep Parsad ◽  
Emma Carroll ◽  
Walter Michael Stadler

e24144 Background: Zoledronic acid (ZA) and denosumab are both bone-modifying agents (BMAs) approved for use in patients with bone metastases with breast or prostate cancer as well as patients who are receiving aromatase inhibitors (breast cancer) or androgen deprivation therapy (prostate cancer). There are various frequencies of administration, doses, and duration of these agents depending on indication and extent of disease. Currently there is data to show that ZA can be given every 3 months in patients with metastatic breast and prostate cancer, however, there is no data that clearly indicates that denosumab every 3 months is non-inferior to every 28 days. This study aimed to analyze current prescribing patterns of ZA and denosumab in metastatic breast cancer and metastatic castration resistant prostate cancer patients at The University of Chicago Medicine (UCM). Methods: This was a retrospective study of 80 patients who received at least one dose of ZA or denosumab between July 1st 2018 to June 30th 2019 from UCM outpatient oncology clinic for the purpose of treating metastatic breast cancer or metastatic castration resistant prostate cancer in conjunction with standard antineoplastic therapy. All included patients must have bone metastases. Patients were divided into four groups by disease state (breast or prostate cancer) and BMA agent (ZA or denosumab). The primary outcome was BMA therapy adherence rate, which was defined by those who received greater than or equal to 80% of appropriately scheduled doses. Descriptive statistics were used for skeletal-related events (SREs) and BMA associated adverse effects. Results: Patients who received ZA achieved higher adherence rates (100% breast, 86% prostate) compared to patients that received denosumab (63% breast, 23% prostate). The most common reason for the lower adherence rate in denosumab groups was scheduling convenience. During the study period, there were 3, 0, 2 and 5 patients had SREs in the above four groups respectively. The predominant adverse event across all groups was hypocalcemia and two patients with prostate cancer on denosumab developed osteonecrosis of the jaw. The cost analysis showed using ZA as primary BMA agent might save up to 2.5 million dollars per year at UCM. Conclusions: The use ofZA was associated with higher adherence rates compared to denosumab. Implementing a pharmacy driven protocol for ZA use for patients with metastatic breast and prostate cancer may improve BMA regimen adherence rates and significantly reduce costs.


2011 ◽  
Vol 174 (11) ◽  
pp. 1316-1322 ◽  
Author(s):  
D. G. Cox ◽  
L. Dostal ◽  
D. J. Hunter ◽  
L. Le Marchand ◽  
R. Hoover ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document