The impact of selective DNA methyltrasferase inhibitors on breast cancer: A systematic review protocol (Preprint)

2018 ◽  
Author(s):  
◽  
Mahsa Mohammadamoli 2nd ◽  
Negar Sarhangi 3rd ◽  
Seyed Mohammad Tavangar 4th
Keyword(s):  
Breast Cancer ◽  
Systematic Review ◽  
Dna Methyltransferase ◽  
Best Practice ◽  
Breast Cancer Patients ◽  
Data Synthesis ◽  
Dna Methyltransferase Inhibitors ◽  
Oncological Diseases ◽  
Review Protocol ◽  
The Impact

UNSTRUCTURED The DNA methyltransferase inhibitors (DNMTi) are the greatest effective epigenetic drugs to date and are still the most widely used as epigenetic modulators, even though their application for oncological diseases is restricted by their relative toxicity and poor chemical stability. Unfortunately, there is no a review related to the studies related to different DNMTi and breast cancer treatment. This review the DNMTi impact on breast cancer therapy, through the available literature we will run a systematic review. The specific review questions to be addressed are: (1) what constitutes current best practice in relation DNMTi interventions for hospitalized breast cancer patients? (2) What are the indications for, and the safety and effectiveness of, the range of interventions available? This protocol represented the methods including: inclusion criteria search strategy, Selection of studies, Quality assessment, and the last but not the least Statistical analysis and data synthesis which will be passed throughout of our research.

The Impact of Endocrine Therapy on Cognitive Functions of Breast Cancer Patients: A Systematic Review

2015 ◽  
Vol 36 (2) ◽  
pp. 109-118 ◽  
Author(s):  
Ioannis Bakoyiannis ◽  
Eleousa-Alexandra Tsigka ◽  
Despina Perrea ◽  
Vasilios Pergialiotis
Keyword(s):  
Breast Cancer ◽  
Systematic Review ◽  
Cancer Patients ◽  
Endocrine Therapy ◽  
Cognitive Functions ◽  
Breast Cancer Patients ◽  
The Impact

scholarly journals MO11-4 The impact of sarcopenia on survival among non-metastatic breast cancer patients: A systematic review

2021 ◽  
Vol 32 ◽  
pp. S303
Author(s):  
Sharon Chen ◽  
Elizabeth Marcella ◽  
Felix Wijovi ◽  
Angeline Tancherla ◽  
Andree Kurniawan
Keyword(s):  
Breast Cancer ◽  
Systematic Review ◽  
Metastatic Breast Cancer ◽  
Cancer Patients ◽  
Metastatic Breast ◽  
Breast Cancer Patients ◽  
The Impact

scholarly journals An Evaluation of DNA Methyltransferase 1 (DNMT1) Single Nucleotide Polymorphisms and Chemotherapy-Associated Cognitive Impairment: A Prospective, Longitudinal Study

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Alexandre Chan ◽  
Angie Yeo ◽  
Maung Shwe ◽  
Chia Jie Tan ◽  
Koon Mian Foo ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cognitive Impairment ◽  
Cognitive Function ◽  
Cancer Patients ◽  
Dna Methyltransferase ◽  
Dna Methyltransferases ◽  
Breast Cancer Patients ◽  
Prospective Longitudinal Study ◽  
Cognitive Domains ◽  
Prospective Longitudinal

Abstract Strong evidence suggests that genetic variations in DNA methyltransferases (DNMTs) may alter the downstream expression and DNA methylation patterns of neuronal genes and influence cognition. This study investigates the association between a DNMT1 polymorphism, rs2162560, and chemotherapy-associated cognitive impairment (CACI) in a cohort of breast cancer patients. This is a prospective, longitudinal cohort study. From 2011 to 2017, 351 early-stage breast cancer patients receiving chemotherapy were assessed at baseline, the midpoint, and the end of chemotherapy. DNA was extracted from whole blood, and genotyping was performed using Sanger sequencing. Patients’ self-perceived cognitive function and cognitive performance were assessed at three different time points using FACT-Cog (v.3) and a neuropsychological battery, respectively. The association between DNMT1 rs2162560 and cognitive function was evaluated using logistic regression analyses. Overall, 33.3% of the patients reported impairment relative to baseline in one or more cognitive domains. Cognitive impairment was observed in various objective cognitive domains, with incidences ranging from 7.2% to 36.9%. The DNMT1 rs2162560 A allele was observed in 21.8% of patients and this was associated with lower odds of self-reported cognitive decline in the concentration (OR = 0.45, 95% CI: 0.25–0.82, P = 0.01) and functional interference (OR = 0.48, 95% CI: 0.24–0.95, P = 0.03) domains. No significant association was observed between DNMT1 rs2162560 and objective cognitive impairment. This is the first study to show a significant association between the DNMT1 rs2162560 polymorphism and CACI. Our data suggest that epigenetic processes could contribute to CACI, and further studies are needed to validate these findings.

scholarly journals CBR3 V244M is associated with LVEF reduction in breast cancer patients treated with doxorubicin

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Jennifer K. Lang ◽  
Badri Karthikeyan ◽  
Adolfo Quiñones-Lombraña ◽  
Rachael Hageman Blair ◽  
Amy P. Early ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Patients ◽  
Care Center ◽  
Left Ventricular ◽  
The Body ◽  
Left Ventricular Ejection ◽  
Breast Cancer Patients ◽  
Ventricular Ejection Fraction ◽  
Echocardiographic Parameters ◽  
The Impact

Abstract Background The CBR3 V244M single nucleotide polymorphism has been linked to the risk of anthracycline-related cardiomyopathy in survivors of childhood cancer. There have been limited prospective studies examining the impact of CBR3 V244M on the risk for anthracycline-related cardiotoxicity in adult cohorts. Objectives This study evaluated the presence of associations between CBR3 V244M genotype status and changes in echocardiographic parameters in breast cancer patients undergoing doxorubicin treatment. Methods We recruited 155 patients with breast cancer receiving treatment with doxorubicin (DOX) at Roswell Park Comprehensive Care Center (Buffalo, NY) to a prospective single arm observational pharmacogenetic study. Patients were genotyped for the CBR3 V244M variant. 92 patients received an echocardiogram at baseline (t0 month) and at 6 months (t6 months) of follow up after DOX treatment. Apical two-chamber and four-chamber echocardiographic images were used to calculate volumes and left ventricular ejection fraction (LVEF) using Simpson’s biplane rule by investigators blinded to all patient data. Volumetric indices were evaluated by normalizing the cardiac volumes to the body surface area (BSA). Results Breast cancer patients with CBR3 GG and AG genotypes both experienced a statistically significant reduction in LVEF at 6 months following initiation of DOX treatment for breast cancer compared with their pre-DOX baseline study. Patients homozygous for the CBR3 V244M G allele (CBR3 V244) exhibited a further statistically significant decrease in LVEF at 6 months following DOX therapy in comparison with patients with heterozygous AG genotype. We found no differences in age, pre-existing cardiac diseases associated with myocardial injury, cumulative DOX dose, or concurrent use of cardioprotective medication between CBR3 genotype groups. Conclusions CBR3 V244M genotype status is associated with changes in echocardiographic parameters suggestive of early anthracycline-related cardiomyopathy in subjects undergoing chemotherapy for breast cancer.

scholarly journals Impact of Pharmaceutical Prophylaxis on Radiation-Induced Liver Disease Following Radioembolization

Cancers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1992
Author(s):  
Max Seidensticker ◽  
Matthias Philipp Fabritius ◽  
Jannik Beller ◽  
Ricarda Seidensticker ◽  
Andrei Todica ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Metastatic Breast Cancer ◽  
Liver Disease ◽  
Positive Impact ◽  
Metastatic Breast ◽  
Normal Liver ◽  
Liver Parenchyma ◽  
Breast Cancer Patients ◽  
Radiation Induced ◽  
The Impact

Background: Radioembolization (RE) with yttrium-90 (90Y) resin microspheres yields heterogeneous response rates in with primary or secondary liver cancer. Radiation-induced liver disease (RILD) is a potentially life-threatening complication with higher prevalence in cirrhotics or patients exposed to previous chemotherapies. Advances in RILD prevention may help increasing tolerable radiation doses to improve patient outcomes. This study aimed to evaluate the impact of post-therapeutic RILD-prophylaxis in a cohort of intensely pretreated liver metastatic breast cancer patients; Methods: Ninety-three patients with liver metastases of breast cancer received RE between 2007 and 2016. All Patients received RILD prophylaxis for 8 weeks post-RE. From January 2014, RILD prophylaxis was changed from ursodeoxycholic acid (UDCA) and prednisolone (standard prophylaxis [SP]; n = 59) to pentoxifylline (PTX), UDCA and low-dose low molecular weight heparin (LMWH) (modified prophylaxis (MP); n = 34). The primary endpoint was toxicity including symptoms of RILD; Results: Dose exposure of normal liver parenchyma was higher in the modified vs. standard prophylaxis group (47.2 Gy (17.8–86.8) vs. 40.2 Gy (12.5–83.5), p = 0.017). All grade RILD events (mild: bilirubin ≥ 21 µmol/L (but <30 μmol/L); severe: (bilirubin ≥ 30 µmol/L and ascites)) were observed more frequently in the SP group than in the MP group, albeit without significance (7/59 vs. 1/34; p = 0.140). Severe RILD occurred in the SP group only (n = 2; p > 0.1). ALBI grade increased in 16.7% patients in the MP and in 27.1% patients in the SP group, respectively (group difference not significant); Conclusions: At established dose levels, mild or severe RILD events proved rare in our cohort. RILD prophylaxis with PTX, UDCA and LMWH appears to have an independent positive impact on OS in patients with metastatic breast cancer and may reduce the frequency and severity of RILD. Results of this study as well as pathophysiological considerations warrant further investigations of RILD prophylaxis presumably targeting combinations of anticoagulation (MP) and antiinflammation (SP) to increase dose prescriptions in radioembolization.

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