scholarly journals High Prevalence of Mitochondrial tRNA A3243G Mutation in Invasive Breast Cancer

2021 ◽  
Vol 6 (2) ◽  
pp. 133-139
Author(s):  
Mohammed A. Alhomidi ◽  
Qurratullain Hasan
Keyword(s):  
Breast Cancer ◽  
Cancer Progression ◽  
Invasive Breast Cancer ◽  
Cellular Proliferation ◽  
Clinicopathological Parameters ◽  
P Value ◽  
Breast Cancer Patients ◽  
Mitochondrial Trna ◽  
Cross Sectional ◽  
A3243g Mutation

Background & Aim: Mitochondria play vital roles in various cellular activities, such as energy production, maintaining the redox balance of the cell, the regulation of cellular proliferation and differentiation, and programmed cell death. Mitochondrial tRNA mutations are associated with many pathological conditions and numerous diseases have been associated with them. Therefore, the objectives of this study were to evaluate the presence and the frequency of mutations in the selected tRNAs in breast cancer patients and to correlate these mutations with the clinicopathological characters. Materials & Methods: The is a cross sectional study, where seventy seven breast tumors and adjacent non-tumorous (normal) tissue samples were analyzed by PCR- RFLP, and direct DNA sequencing. In this study three mt-tRNAs wre selected, two of them are the most important disease associated mt-tRNAs i.e tRNALue (UUR), tRNALys and one of the least pathogenic associated tRNA which is tRNAarg. Statistical analysis was used to determine the relationship between the detected mutations and the clinicopathologhical characters. Results: The tRNAleu (UUR) A3243G mutation occurring at the highly conserved location was detected in 4 samples (5.2%) of both breast cancer and adjacent non-tumorous tissue except one detected only in tumor tissue. Another A8343G mutation was detected in tRNAlys. There was no significant association between these mutations and clinicopathological parameters (P. value > 0.05). Conclusion: The detection of high frequent A3243G mutations in patients with invasive breast cancer suggests role of this mutation in the carcinogenesis. This mutation affects complex I, reduces translation of its core subunits, which can contribute to the impairment of oxidative phosphorylation and increase ROS production, leading to cancer progression.

scholarly journals Memory and Spatial Cognition in Breast Cancer Patients Undergoing Adjuvant Endocrine Therapy

Breast Care ◽  
2016 ◽  
Vol 11 (4) ◽  
pp. 240-246 ◽  
Author(s):  
Ute Berndt ◽  
Bernd Leplow ◽  
Robby Schoenfeld ◽  
Tilmann Lantzsch ◽  
Regina Grosse ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Spatial Cognition ◽  
Verbal Memory ◽  
Multiple Testing ◽  
Local Therapy ◽  
Protective Role ◽  
P Value ◽  
Breast Cancer Patients ◽  
Cross Sectional ◽  
Switch Group

Introduction: It is generally accepted that estrogens play a protective role in cognitive function. Therefore, it can be expected that subtotal estrogen deprivation following aromatase inhibition will alter cognitive performance. Methods: In a cross-sectional study we investigated 80 postmenopausal women with breast cancer. Memory and spatial cognition were compared across 4 treatment groups: tamoxifen only (TAM, n = 22), aromatase inhibitor only (AI, n = 22), TAM followed by AI (‘SWITCH group', n = 15), and patients with local therapy (LT) only (surgery and radiation, n = 21). Duration of the 2 endocrine monotherapy arms prior to the assessment ranged from 1 to 3 years. The ‘SWITCH group' received 2-3 years TAM followed by at least 1 year and at most 3 years of AI. Memory and spatial cognition were investigated as planned comparisons. Investigations of processing speed, attention, executive function, visuoconstruction and self-perception of memory were exploratory. Results: With regard to general memory, AI patients performed significantly worse than the LT group (p = 0.013). Significant differences in verbal memory did not remain significant after p-value correction for multiple testing. We found no significant differences concerning spatial cognition between the groups. Conclusion: AI treatment alone significantly impairs general memory compared to the LT group.

scholarly journals Twist-mediated PAR1 induction is required for breast cancer progression and metastasis by inhibiting Hippo pathway

2020 ◽  
Vol 11 (7) ◽  
Author(s):  
Yifan Wang ◽  
Ruocen Liao ◽  
Xingyu Chen ◽  
Xuhua Ying ◽  
Guanping Chen ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Cells ◽  
Cancer Progression ◽  
Invasive Breast Cancer ◽  
Breast Cancer Cells ◽  
Epithelial Mesenchymal Transition ◽  
Hippo Pathway ◽  
Breast Cancer Patients ◽  
Mesenchymal Transition

Abstract Breast cancer is considered to be the most prevalent cancer in women worldwide, and metastasis is the primary cause of death. Protease-activated receptor 1 (PAR1) is a GPCR family member involved in the invasive and metastatic processes of cancer cells. However, the functions and underlying mechanisms of PAR1 in breast cancer remain unclear. In this study, we found that PAR1 is highly expressed in high invasive breast cancer cells, and predicts poor prognosis in ER-negative and high-grade breast cancer patients. Mechanistically, Twist transcriptionally induces PAR1 expression, leading to inhibition of Hippo pathway and activation of YAP/TAZ; Inhibition of PAR1 suppresses YAP/TAZ-induced epithelial-mesenchymal transition (EMT), invasion, migration, cancer stem cell (CSC)-like properties, tumor growth and metastasis of breast cancer cells in vitro and in vivo. These findings suggest that PAR1 acts as a direct transcriptionally target of Twist, can promote EMT, tumorigenicity and metastasis by controlling the Hippo pathway; this may lead to a potential therapeutic target for treating invasive breast cancer.

scholarly journals Fatigue dan status nutrisi pada pasien dengan kanker payudara yang menjalani kemoterapi

2020 ◽  
Vol 13 (4) ◽  
pp. 278-283
Author(s):  
Sapti Ayubbana ◽  
Sari Narulita
Keyword(s):  
Breast Cancer ◽  
Side Effects ◽  
Nutritional Status ◽  
Cancer Patients ◽  
Nursing Intervention ◽  
P Value ◽  
Breast Cancer Patients ◽  
Chemotherapy Treatment ◽  
Cross Sectional ◽  
Breast Cancer Chemotherapy

Fatigue and nutritional status in patients with breast cancer undergoing chemotherapyBackground: Breast cancer is one type of cancer and is one of the leading causes of death in the world. Cancer patients who receive chemotherapy are at risk of impaired nutritional status due to the disease and its treatment. Chemotherapy treatment can have side effects on the gastrointestinal system such as nausea, vomiting, stomatitis, anorexia, changes in taste. These side effects can cause the patient's nutritional intake to decrease. Cancer and its treatment can cause fatigue complaints.Purpose: to identify the relationship between fatigue and nutritional status in patients with breast cancer patients undergoing chemotherapyMethods: The design of this study was quantitative using a cross sectional approach. The population in this study were patients with breast cancer undergoing chemotherapy. This research was conducted at Dr.H. Abdul Moeloek Hospital of Lampung Province with 42 respondents.Results: Spearman correlation test results found that nutritional status variables have a significant relationship with fatigue (p value = 0.031) with moderate correlation strength (r = 0.471).Conclusion: The nursing intervention on the side effects of chemotherapy treatment which has a positive effect on nutritional conditions in an effort to overcome nutritional disorders and complaints of fatigue in cancer patients.Keywords: Breast Cancer; Chemotherapy; Fatigue; Nutritional StatusPendahuluan: Kanker payudara merupakan salah satu jenis kanker dan menjadi salah satu penyebab kematian di dunia. Pasien kanker yang menerima kemoterapi memiliki resiko gangguan status nutrisi akibat penyakit dan pengobatannya. Pengobatan kemoterapi dapat memberikan efek samping terhadap sistem ganstrointestinal seperti mual, muntah, stomatitis, anoreksia, perubahan rasa. Efek samping tersebut dapat menyebabkan asupan nutrisi pasien dapat mengalami penurunan. Kanker dan pengobatannya dapat menyebabkan keluhan fatigue.Tujuan: Mengetahui adanya hubungan antara status nutrisi terhadap fatigue pada pasien kanker payudara yang menjalani kemoterapi.Metode: Desain penelitian ini adalah kuantitatif dengan menggunakan pendekatan cross sectional . Populasi pada penelitian ini adalah pasien dengan kanker payudara yang menjalani kemoterapi. Penelitian ini dilakukan di RSUD Dr.H. Abdul Moeloek Provinsi Lampung dengan 42 responden.Hasil: Pada uji korelasi spearman didapatkan bahwa variabel status nutrisi mempunyai hubungan yang bermakna dengan fatigue ( p value = 0,031) dengan kekuatan korelasi sedang (r = 0,471).Simpulan: Kesimpulan diperlukan intervensi keperawatan terhadap efek samping pengobatan kemoterapi yang berdapak terhadap kondisi nutrisi dalam upaya mengatasigangguan nutrisi dan keluhan fatigue pada pasien kanker 

scholarly journals Blockade of insulin-like growth factors increases efficacy of paclitaxel in metastatic breast cancer

2017 ◽  
Author(s):  
Lucy Ireland ◽  
Almudena Santos ◽  
Fiona Campbell ◽  
Carlos Figueiredo ◽  
Lesley Ellies ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Growth Factors ◽  
Cancer Progression ◽  
Invasive Breast Cancer ◽  
Metastatic Breast ◽  
Advanced Tumor Stage ◽  
Breast Cancer Patients ◽  
Advanced Tumor ◽  
Potential Biomarker ◽  
Insulin Like Growth Factors

ABSTRACTBreast cancer remains the leading cause of cancer death in women due to metastasis and the development of resistance to established therapies. Macrophages are the most abundant immune cells in the breast tumor microenvironment and can both inhibit and support cancer progression. Thus, gaining a better understanding of how macrophages support cancer could lead to the development of more effective therapies. In this study, we find that breast cancer associated macrophages express high levels of insulin-like growth factors 1 and 2 (IGFs) and are the main source of IGFs within both primary and metastatic tumours. 75% of breast cancer patients show activation of Insulin/IGF-1 receptor signaling and this correlates with increased macrophage infiltration and advanced tumor stage. In patients with invasive breast cancer, activation of Insulin/IGF-1 receptors increased to 87%. Blocking IGF in combination with paclitaxel, a chemotherapeutic agent commonly used to treat breast cancer, showed a significant reduction in tumor cell proliferation and lung metastasis in a pre-clinical breast cancer model compared to paclitaxel monotherapy. Our findings provide the rationale for further developing the combination of paclitaxel with IGF blockers for the treatment of invasive breast cancer, and Insulin/IGF1R activation and IGF+ stroma cells as potential biomarker candidates for further evaluation.

scholarly journals Extracellular vesicles from young women’s breast cancer patients drive increased invasion of non-malignant cells via the Focal Adhesion Kinase pathway: a proteomic approach

2020 ◽  
Vol 22 (1) ◽  
Author(s):  
Kimberly R. Jordan ◽  
Jessica K. Hall ◽  
Troy Schedin ◽  
Michelle Borakove ◽  
Jenny J. Xian ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Patients ◽  
Cancer Progression ◽  
Focal Adhesion ◽  
Invasive Breast Cancer ◽  
Breast Cancer Cells ◽  
Breast Cancer Cell Lines ◽  
Breast Cancer Patients ◽  
Non Invasive ◽  
Healthy Donors

Abstract Background Extracellular vesicles (EVs) are small membrane particles that contribute to cancer progression and metastases by transporting biologically significant proteins and nucleic acids. They may also serve as biomarkers of various disease states or important therapeutic targets. Breast cancer EVs have the potential to change the behavior of other cells in their microenvironment. However, the proteomic content of EVs isolated from young women’s breast cancer patients and the mechanisms underlying the influence of EVs on tumor cell behavior have not yet been reported. Methods In our current translational studies, we compared the proteomic content of EVs isolated from invasive breast cancer cell lines and plasma samples from young women’s breast cancer (YWBC) patients and age-matched healthy donors using mass spectrometry. We analyzed the functionality of EVs in two dimensional tumor cell invasion assays and the gene expression changes in tumor cells after incubation with EVs. Results We found that treatment with EVs from both invasive breast cancer cell lines and plasma of YWBC patients altered the invasive properties of non-invasive breast cancer cells. Proteomics identified differences between EVs from YWBC patients and healthy donors that correlated with their altered function. Further, we identified gene expression changes in non-invasive breast cancer cells after treatment with EVs that implicate the Focal Adhesion Kinase (FAK) signaling pathway as a potential targetable pathway affected by breast cancer-derived EVs. Conclusions Our results suggest that the proteome of EVs from breast cancer patients reflects their functionality in tumor motility assays and may help elucidate the role of EVs in breast cancer progression.

scholarly journals Hubungan Dukungan Keluarga dengan Self Esteem pada Pasien Kanker Payudara di Poliklinik Bedah Onkologi RSUP Sanglah Denpasar

2020 ◽  
Vol 9 (2) ◽  
pp. 181
Author(s):  
Ni luh Putu Mahayani ◽  
Ni Komang Sukraandini ◽  
Ni Wayan Suniyadewi
Keyword(s):  
Breast Cancer ◽  
Family Support ◽  
Cancer Patients ◽  
Surgical Oncology ◽  
Self Esteem ◽  
P Value ◽  
Breast Cancer Patients ◽  
Cross Sectional ◽  
Cross Sectional Design ◽  
The Relationship

AbstractBreast cancer sufferers have a tendency to experience a decrease of self esteem that make  patients shall showing symptoms such as blaming themself for what they experienced. One way to increase self esteem in cancer patients is by increasing family participation through family support. The aim of this study is to determine the relationship between family support and self esteem in breast cancer patients. This study was using cross sectional design. The study was taken place at the Surgical Oncology Polyclinic, found samples of 188 respondents which was selected with a purposive sampling technique.The results showed that the majority of respondents were in the category of moderate self-esteem were 98 respondents (52.1%) and the category of moderate family support were 96 respondents (51.1%). The Rank Spearmen test results shows p value 0,000 (p <ɑ), means there is a relationship between self-esteem and family support in breast cancer patients with r value of 0.566 (positive relationship). It is expected that the family will always support the patient in every process of treatment, whether in the form of physical, psychological or financial support that could increase the patient's self esteem

scholarly journals LDL-c as a predictor of hormonal status and determining factor for therapy of breast cancer patients

2021 ◽  
Vol 2 (2) ◽  
pp. 023-031
Author(s):  
Reynard Budy Setiawan ◽  
Desak Gede Agung Suprabawati ◽  
Jusak Nugraha
Keyword(s):  
Breast Cancer ◽  
Cancer Cells ◽  
Cancer Patients ◽  
Density Lipoprotein ◽  
P Value ◽  
Hormonal Status ◽  
Breast Cancer Patients ◽  
Characteristic Analysis ◽  
Chi Square ◽  
Cross Sectional

Background: Immunohistochemical testing is important in determining clinical diagnosis and therapy, and is useful as a prognostic and predictive factor, but it is not easy to do and is not always available. Breast cancer patient with higher low-density-lipoprotein cholesterol [LDL-c]. level tends to have larger tumor size, higher grade, higher proliferation rate, positive Human Epidermal growth factor Receptor-2 (HER2-neu) and occasionally come at late stage. High LDL-c receptors are found on the surface of breast cancer cells, where cancer cells will take up cholesterol in serum, and a metabolite of 27-hydroxycholesterol cholesterol will affect Estrogen Receptor-α. Methods: Analytical observational study by cross sectional method, during July 2020 – November 2020, at Oncology Clinic Dr. Soetomo Hospital Surabaya with a total sample size of 42. The data obtained were analyzed using the SPSS version 23.0 program, regression test and Chi-Square were performed for characteristic analysis and Chi-Square Fischer’s Exact Test were performed for correlation test between lipid profiles with hormonal status. Results: The mean value of LDL-c was 117.88 ± 33.89 mg/dL. In the analysis of the correlation between LDL-c and hormonal status, it was found that the majority of patients who had positive hormonal status had LDL-c levels of ≤160 mg/dL with p value = 0.049. ROC analysis shown LDL-c cut-off point of 132 mg/dL, p value = 0.034 (OR 5.031, 95% CI 1.159-21.848), sensitivity 46.7% and specificity 83.35%. Conclusion: There is a statistically significant relationship between LDL-c levels and hormonal status with the cut-off point of 132 mg/dL. The increase in LDL-c in serum increases the tendency of negative hormonal status, therefore LDL-c levels can be considerate in determining the therapy for breast cancer patients.

scholarly journals ROLE OF MALONDIALDEHYDE (MDA) IN PATIENTS WITH BREAST CANCER DISEASES

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Eti Yerizel ◽  
Niki Astria ◽  
Daan Khambri
Keyword(s):  
Breast Cancer ◽  
Cancer Patients ◽  
Gene Mutations ◽  
Observational Research ◽  
P Value ◽  
Breast Cancer Patients ◽  
Cross Sectional ◽  
The Many ◽  
Many Sources ◽  
And Control

Background: Breast cancer is one of the most common cancers as well as one of the leading causes of cancer mortality in women worldwide. Cancer risk potentially continues to increase because of the many sources of exposure to carcinogenic chemical compounds. Carcinogenic compounds can contribute to free radical formation which might further interact and damage biomolecules such as lipids. Lipid peroxidation will increase malondialdehyde (MDA) levels, triggering gene mutations that leads to cancer.  Objective: The purpose of this research was to measure and compare MDA levels between breast cancer patients and control.Methods: This research was observational research using a cross-sectional comparative design of 30 breast cancer patients and 30 healthy controls. The place of this research is in Ropanasuri specialized surgery hospital and biochemical laboratory,  Faculty of Medicine, Andalas University, Padang. This research was conducted from August to September 2019. The MDA was measured using a spectrophotometer and an independent T-test was done.Results: The result of this research showed the mean MDA level of breast cancer patients was 3.98 ± 0.35 nmol/ml, higher than controls was 3.04 ± 0.36 nmol/ml with p-value = 0.001.Conclusion: There were significant differences in MDA levels among breast cancer patients and control in Ropanasuri specialized surgery hospital, Padang. 

scholarly journals MMP-2 levels evaluation and their relationship with breast cancer progression.

2020 ◽  
Vol 27 (02) ◽  
pp. 424-430
Author(s):  
Ifrah Yaqoob ◽  
Muhammad Saeed ◽  
Aysha Azhar
Keyword(s):  
Breast Cancer ◽  
Cancer Patients ◽  
Invasive Ductal Carcinoma ◽  
Cancer Progression ◽  
Ductal Carcinoma ◽  
Histological Type ◽  
Breast Cancer Patients ◽  
Cross Sectional ◽  
Significant Difference ◽  
The University

Matrix metalloproteinases (MMPs) play significant part in the tumor development, metastasis and invasion by proteolytic degradation of basement membrane and extracellular matrix. Hence MMPs can serve as good biomarkers for carcinoma breast particularly MMP-2 in our population. Objectives: To measure the concentrations of MMP-2 in plasma of breast cancer patients and establishing their correlation with stage and grade of the disease. Study Design: Comparative cross sectional. Setting: Surgery department Madinah Teaching Hospital (MTH) and the Pathology department, The University of Faisalabad (TUF), Faisalabad. Period: 1st August, 2017 to 31st December, 2017. Material & Methods: Only females with diagnosed breast cancer disease along with staging and grading were included in the study. Females with incomplete reports, on chemotherapy or radiotherapy or having other diseases like oral squamous cell carcinoma, rheumatoid arthritis etc were excluded. ELISA kit was applied to measure the concentrations of MMP-2 in plasma of the participants. OD values were calculated at 450 nm by ELISA reader placed at Post Graduate Research Laboratory, The University of Faisalabad, Faisalabad. Data was gathered and results were finalized by using SPSS 22 for statistical assessment. Results: Age of 64(72%) breast cancer patients was within range of 30-76yrs and age for 25(28%) healthy females as controls range was 18-70yrs. Difference between ages of cases and controls using t-test was statistically highly significant. Ninety five percent cases showed invasive ductal carcinoma (IDC) as histological type. Range of MMP-2 levels in cases was 80-690 ng/mL with mean 451.02 while range of MMP-2 levels in controls was 65-830ng/mL with mean 329.72 showing statistically significant difference. Relationship of different groups of MMP-2 levels in cases with stages of breast cancer was established using chi-square test which was statistically significant, stage IIB (37.5%) and IIIA (34.4%) tumors showed higher values of MMP-2. Relationship between MMP-2 levels, grade, tumor size and node invasion was nonsignificant statistically. Conclusion: MMP-2 levels were raised in cases in comparison to healthy controls. Age of majority patients was > 45 yrs while the invasive ductal carcinoma was the main histological type. MMP-2 levels were associated with stage of the disease.

scholarly journals Hubungan Usia Dengan Estrogen Receptor Pada Penderita Kanker Payudara di RSUD Dr. Pirngadi Medan Tahun 2018

2020 ◽  
Vol 6 (1) ◽  
pp. 1-4
Author(s):  
Jumikha Tamara Sahmaulyana Sidauruk
Keyword(s):  
Breast Cancer ◽  
Estrogen Receptor ◽  
Estrogen Receptors ◽  
Cancer Patients ◽  
Test Method ◽  
Bivariate Analysis ◽  
P Value ◽  
Breast Cancer Patients ◽  
Research Subjects ◽  
Cross Sectional

Background: Breast cancer is a malignancy in breast tissue that can be originated from ductal epithelium and lobules. It is the main cause of death from cancer suffered by women in the world. Age and hormonal are important risk factors for breast cancer where the longer a person is exposed to estrogen, the higher is the risk for breast cancer. The estrogen receptor is one of the main prognostic and predictive factors examined in breast cancer and can be determinant for hormonal therapy. Objectives: This study aimed to discover the relation between age and estrogen receptor in breast cancer patients of RSUD Dr.Pirngadi Medan in 2018. Methods: This research was an analytical study with a cross-sectional design. The research sample was 96 breast cancer patients by medical records of RSUD Dr.Pirngadi Medan in 2018 collected by a consecutive sampling method. Analysis of the data in this study was done by univariate to describe the characteristics of research subjects, while bivariate analysis used the chi-square test method to analyze the relationship between age and estrogen receptor. Results: The patients with breast cancer in RSUD Dr.Pirngadi Medan 2018 was mostly >40 years old (79.2%), with negative estrogen receptor hormonal status (53%), status was married (99%), and the highest level of education was high school (54.2%). The results of the study showed that there was a relationship between age and estrogen receptor in breast cancer patients with p-value =0.007 (p value<0,05). Conclusion: There was a significant relationship between age and estrogen receptors and estrogen receptors in breast cancer patients in RSUD Dr.Pirngadi Medan 2018.

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