scholarly journals Lack of Association between Common Polymorphisms in Selenoprotein P Gene and Susceptibility to Colorectal Cancer, Breast Cancer, and Prostate Cancer: A Meta-Analysis

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.

2013 ◽  
Vol 8 ◽  
pp. BMI.S11153 ◽  
Author(s):  
F. Schmalfuss ◽  
P.L. Kolominsky-Rabas

Personalized medicine (PM) is currently a hot topic in the professional world. It is often called the medicine of the future and has already achieved resounding success in the area of targeted therapy. Nevertheless, integration of the concepts of PM into routine clinical practice is slow. This review is intended to give an overview of current and potential applications of PM in oncology. PM could soon play a decisive role, especially in screening. The relevance of PM in screening was examined in the case of four common cancers (colorectal cancer, lung cancer, breast cancer, and prostate cancer). A literature search was performed. This showed that biomarkers in particular play a crucial role in screening. In summary, it can be emphasized that there are already numerous known promising biomarkers in malignant disease. This results in several possibilities for individualizing and revolutionizing screening.


2020 ◽  
Vol 35 (4) ◽  
pp. 71-79
Author(s):  
Guoqiang Zhang ◽  
Maohe Jin

Background: CYP24A1 polymorphisms may affect predisposition of cancer, but the results of published studies remain inconclusive. Therefore, the authors conducted this meta-analysis to more robustly assess relationships between CYP24A1 polymorphisms and the predisposition of cancer by pooling the findings of published studies. Materials and methods: A comprehensive literature search of PubMed, Embase, Web of Science, Wanfang, and CNKI was endorsed by the authors to identify eligible studies; 17 studies were finally found to be eligible for pooled meta-analysis. Results: The pooled meta-analysis results showed that genotypic frequencies of the rs4809960 polymorphism among cancerous patients and controls of Caucasian ethnicity differed significantly, and genotypic frequencies of the rs6022999 polymorphism among cancerous patients and controls of Asian ethnicity also differed significantly. Moreover, we found that genotypic frequencies of the rs2585428 polymorphism among patients with prostate cancer and controls differed significantly, and genotypic frequencies of the rs6068816 polymorphism among patients with prostate cancer/breast cancer and controls also differed significantly. Conclusions: This meta-analysis suggests that the rs4809960 polymorphism may affect the predisposition of cancer in Caucasians, and the rs6022999 polymorphism may affect the predisposition of cancer in Asians. Moreover, the rs2585428 polymorphism may affect the predisposition of prostate cancer, while the rs6068816 polymorphism may affect the predisposition of prostate cancer and breast cancer.


2014 ◽  
Vol 23 (19) ◽  
pp. 5260-5270 ◽  
Author(s):  
Myrto Barrdahl ◽  
Federico Canzian ◽  
Amit D. Joshi ◽  
Ruth C. Travis ◽  
Jenny Chang-Claude ◽  
...  

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 1604-1604
Author(s):  
Lanhua Tang ◽  
Meizuo Zhong ◽  
Jin Huang ◽  
Shushan Zhao

1604 Background: The association between night work (or shift work) and cancers has been studied for decades. However, researches investigating the association have yielded inconsistent results. Methods: A systematic review and meta-analysis was performed to investigate whether night work is a risk factor for different kinds of cancer. PubMed and Cochrane library search were independently conducted by two authors from January 1960 to January 2013 using keywords related to night work and cancer. According to between-studies heterogeneity, pooled risk ratios (RR) were estimated with fixed or random effects models by STATA 12.0 software. Sensitivity analysis and publication bias were also analyzed. Results: A total of 33 studies were identified according to the inclusion criteria. The aggregate estimate for all cancers combined was [1.35, (1.24-1.47)] with a similar significant elevation of breast cancer [1.36, (1.21-1.52)], ovary cancer [1.24, (1.08-1.43)] risk among female, and malignant melanoma [1.58, (1.03-2.44)]. No significant risks were observed as regard to patients with prostate cancer, colorectal cancer, cervix cancer and non-Hodgkin lymphoma. Sensitivity analyses indicated no change in all results but malignant melanoma and colorectal cancer. The RRs became significant differences after removing one study from the colorectal cancer [1.60, (1.70-2.18)]. No publication bias was observed in this meta-analysis. Conclusions: The current meta-analysis suggested that night work played an important role in breast cancer, ovary cancer, and malignant melanoma. However, it might be premature to consider night work as a risk factor for prostate cancer, colorectal cancer, cervix cancer and non-Hodgkin lymphoma. [Table: see text]


BMC Medicine ◽  
2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Susanna C. Larsson ◽  
Amy M. Mason ◽  
Siddhartha Kar ◽  
Mathew Vithayathil ◽  
Paul Carter ◽  
...  

Abstract Background Observational studies have shown that milk consumption is inversely associated with colorectal, bladder, and breast cancer risk, but positively associated with prostate cancer. However, whether the associations reflect causality remains debatable. We investigated the potential causal associations of milk consumption with the risk of colorectal, bladder, breast, and prostate cancer using a genetic variant near the LCT gene as proxy for milk consumption. Methods We obtained genetic association estimates for cancer from the UK Biobank (n = 367,643 women and men), FinnGen consortium (n = 135,638 women and men), Breast Cancer Association Consortium (n = 228,951 women), and Prostate Cancer Association Group to Investigate Cancer Associated Alterations in the Genome consortium (n = 140,254 men). Milk consumption was proxied by a genetic variant (rs4988235 or rs182549) upstream of the gene encoding lactase, which catalyzes the breakdown of lactose. Results Genetically proxied milk consumption was associated with a reduced risk of colorectal cancer. The odds ratio (OR) for each additional milk intake increasing allele was 0.95 (95% confidence interval [CI] 0.91–0.99; P = 0.009). There was no overall association of genetically predicted milk consumption with bladder (OR 0.99; 95% CI 0.94–1.05; P = 0.836), breast (OR 1.01; 95% CI 1.00–1.02; P = 0.113), and prostate cancer (OR 1.01; 95% CI 0.99–1.02; P = 0.389), but a positive association with prostate cancer was observed in the FinnGen consortium (OR 1.07; 95% CI 1.01–1.13; P = 0.026). Conclusions Our findings strengthen the evidence for a protective role of milk consumption on colorectal cancer risk. There was no or limited evidence that milk consumption affects the risk of bladder, breast, and prostate cancer.


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 1510-1510
Author(s):  
Alice Koechlin ◽  
Mathieu Boniol ◽  
Chris Robertson ◽  
Geremia Bolli ◽  
Julio Rosenstock ◽  
...  

1510 Background: The association between diabetes, its risk factors and treatments, and cancer risk and death is now high on the clinical and research agenda. Methods: All data regarding cancer risk and use of insulin glargine has been assembled and meta-analyses performed using state-of-the-art statistical methodology. Glargine is the most studied insulin in this regard. A random effects model was employed with tests for heterogeneity (I2) and publication bias. These meta-analyses are based on reports from epidemiological studies involving a total of 907,008 diabetic subjects and 2,597,602 person-years of observation. Results: Based on independent estimates from 14 studies, the Summary Relative Risk (SRR) for all forms of cancer was (SRR=0.90, 95% CI (0.82, 0.98)) and for breast cancer SRR=1.14 (95% CI (1.00, 1.29)). For new users of glargine, from 7 studies, the SRR for breast cancer was SRR=1.20 (95% CI (0.90, 1.58)). Based on independent estimates for 9 studies, for colorectal cancer the SRR was 0.73 (95% CI (0.59, 0.91)) and for prostate cancer SRR=1.16 (95% CI (1.03, 1.30)). Overall, the risk of developing cancer among users of insulin glargine is reduced compared to the risk of users of other insulins. Similarly, the risk of colorectal cancer is reduced among users of glargine. While above unity, the risks of breast cancer and prostate cancer are increased marginally. Potential limitations to this meta-analysis include that the comparison group was not the same in all studies but this could also be seen as a strength. This is not likely to invalidate the findings of this analysis nor would the fact that different adjustments were made in the individual studies. Conclusions: The current evidence gives no support to the hypothesis that insulin glargine is associated with an increased risk of cancer as compared to other insulins and should give reassurance to physicians and their patients. Given the short exposure time possible to glargine (less than 5 years maximum), it is not biologically plausible to have a causal link to common forms of cancer.


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.


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