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  • Open Access

    ARTICLE

    Fully Automatic Segmentation of Gynaecological Abnormality Using a New Viola–Jones Model

    Ihsan Jasim Hussein1, M. A. Burhanuddin2, Mazin Abed Mohammed3,*, Mohamed Elhoseny4, Begonya Garcia-Zapirain5, Marwah Suliman Maashi6, Mashael S. Maashi7

    CMC-Computers, Materials & Continua, Vol.66, No.3, pp. 3161-3182, 2021, DOI:10.32604/cmc.2021.012691

    Abstract One of the most complex tasks for computer-aided diagnosis (Intelligent decision support system) is the segmentation of lesions. Thus, this study proposes a new fully automated method for the segmentation of ovarian and breast ultrasound images. The main contributions of this research is the development of a novel Viola–James model capable of segmenting the ultrasound images of breast and ovarian cancer cases. In addition, proposed an approach that can efficiently generate region-of-interest (ROI) and new features that can be used in characterizing lesion boundaries. This study uses two databases in training and testing the proposed segmentation approach. The breast cancer… More >

  • Open Access

    ARTICLE

    Chaperone-mediated autophagy targeting chimeras (CMATAC) for the degradation of ERα in breast cancer

    JUN ZHANG, YEHONG HUANG, WENZHUO LIU, LULU LI, LIMING CHEN*

    BIOCELL, Vol.44, No.4, pp. 591-595, 2020, DOI:10.32604/biocell.2020.011642

    Abstract Estrogen receptor alpha (ERα/ESR1) is overexpressed in over half of all breast cancers and is considered a valuable therapeutic target in ERα positive breast cancer. Here, we designed a membrane-permeant Chaperonemediated Autophagy Targeting Chimeras (CMATAC) peptide to knockdown endogenous ERα protein through chaperone-mediated autophagy. The peptide contains a cell membrane-penetrating peptide (TAT) that allows the peptide to by-pass the plasma membrane, an αI peptide as a protein-binding peptide (PBD) that binds specifically to ERα, and CMA-targeting peptide (CTM) that targeting chaperone-mediated autophagy. We validated that ERα targeting peptide was able to target and degrade ERα to reduce the viability of… More >

  • Open Access

    ARTICLE

    RETRACTED: LncRNA TUG1 Targets miR-222-3p to Take Part in Proliferation and Invasion of Breast Cancer Cells

    Yuqin Xie1, Shuang Deng1, Qian Deng2, Jiudong Xu*

    Oncologie, Vol.22, No.3, pp. 179-188, 2020, DOI:10.32604/Oncologie.2020.012544

    Abstract This study aimed to explore LncRNA TUG1 targeted miR-222-3p in the proliferation and invasion of breast cancer (BC) cells. Seventy-six BC patients admitted to our hospital and 62 health check-ups at the same time were selected as the research objects. Among them, the former was seen as the observation group (OG), and the latter was considered as the control group (CG). The clinical significance of LncRNA TUG1 and miR-222-3p in BC was detected. Human BC cell MCF7 and normal human breast epithelial cell MCF-10A were purchased. After cells were transfected with LncRNA TUG1 and miR-222-3p, their proliferation, invasion, and apoptosis… More >

  • Open Access

    CASE REPORT

    Double Heterozygosity in the BRCA1/2 Genes in a Turkish Patient with Bilateral Breast Cancer: A Case Report

    Neslihan Duzkale1,*, Nilnur Eyerci2

    Oncologie, Vol.22, No.3, pp. 161-166, 2020, DOI:10.32604/oncologie.2020.014116

    Abstract BRCA1 and BRCA2 tumor suppressor genes are responsible for a quarter of hereditary breast cancers. Double heterozygous (DH) pathogenic variant carrier status in these genes is an extremely rare condition, especially in non-Askenazi individuals. We report a woman patient with bilateral breast cancer that carries DH disease-causing variants in BRCA1/2 genes. The 45-year-old patient who was followed up with the diagnosis of metachronous bilateral breast cancer was diagnosed with cancer at the age of 39 and 43, respectively. BRCA1/2 genes of the patient were evaluated using Next-Generation Sequencing. In the patient, the c.2800C>T (p.Gln934Ter) pathogenic variant in BRCA1 and the… More >

  • Open Access

    ARTICLE

    Prognostic and Predictive Significance of Eukaryotic Elongation Factor 1D (eEF1D) in Breast Cancer: A Potential Marker of Response to Endocrine Therapy

    Burcu BİTERGE SÜT1,*, Ayşe İKİNCİ KELEŞ2

    Oncologie, Vol.22, No.3, pp. 147-154, 2020, DOI:10.32604/oncologie.2020.014449

    Abstract Components of the protein synthesis machinery are subjected to alterations in cancer cells. eEF1D gene, which lies within the frequently amplified 8q24 locus, is one of the subunits of the human eukaryotic elongation factor complex. This study aimed to evaluate the prognostic and predictive significance of eEF1D in breast cancer using in silico analysis tools. For this purpose, we analyzed genomic alterations of the eEF1D gene using TCGA datasets via cBioPortal. Histopathological analysis was performed on patient tissue images obtained from cBioPortal and the Human Protein Atlas. Survival analysis was carried out using the KM Plotter and the prediction of… More >

  • Open Access

    ARTICLE

    Breast Cancer: Delays of Access to Diagnosis and Treatment Retrospective Study–Batna, Algeria August 2015–February 2016
    Cancer du Sein: Délais d’Accès au Diagnostic et aux Traitements Etude Rétrospective–Batna, Algérie Août 2015–Février 2016

    Fadhila Mansour1,2,*, Abdelhak Lakehal2,3, Lahcène Nezzal2,3

    Oncologie, Vol.22, No.3, pp. 117-128, 2020, DOI:10.32604/oncologie.2020.014979

    Abstract The objective of this study was to quantify the delays in access to diagnosis and treatment of women with breast cancer who are managed at the anticancer center of Batna, Algeria. This was a descriptive retrospective study conducted during the period August 2015 to February 2016. In order to trace the history of the journey from the first signs of cancer to the first treatments, a questionnaire was filled in from the medical files and completed by an interview with the patients. A total of 267 patients were included in the study. The median time to management was 4.5 months.… More >

  • Open Access

    REVIEW

    Minireview: C2- and C4-position 17β-estradiol metabolites and their relation to breast cancer

    ANNIE JOUBERT1*, HERMIA VAN ZYL1, JOHANNES LAURENS2, MONA-LIZA LOTTERING1

    BIOCELL, Vol.33, No.3, pp. 137-140, 2009, DOI:10.32604/biocell.2009.33.137

    Abstract C2- and C4-position 17β-estradiol metabolites play an important role in breast carcinogenesis. 2-Hydroxyestradiol and 4-hydroxyestradiol are implicated in tumorigenesis via two pathways. These pathways entail increased cell proliferation and the formation of reactive oxygen species that trigger an increase in the likelihood of deoxyribonucleic acid mutations.
    2-Methoxyestradiol, a 17β-estradiol metabolite, however, causes induction of apoptosis in transformed and tumor cells; thus exhibiting an antiproliferative effect on tumor growth. The 4-hydroxyestradiol:2- methoxyestradiol and 2-hydroxyestradiol:2-methoxyestradiolratios therefore ought to be taken into account as possible indicators of carcinogenesis. More >

  • Open Access

    ARTICLE

    Inhibition of focal adhesion kinase by antisense oligonucleotides enhances the sensitivity of breast cancer cells to camptothecins

    T.H. Satoh2, T.A. Surmacz3, O. Nyormoi4, C.M. Whitacre1

    BIOCELL, Vol.27, No.1, pp. 47-55, 2003, DOI:10.32604/biocell.2003.27.047

    Abstract This study shows a strong association between cell attachment to substratum and activation of β1-integrin-signaling with resistance to the camptothecin derivative topotecan (TPT) in breast cancer cells. We propose a mechanistic-driven approach to sensitize the cells to camptothecins. ZR-75-1 anchoragedependent breast cancer cell line, its derivative 9D3S suspension cells (9D3S-S), and 9D3S cells attached to fibronectin-coated plates (9D3S-A) were treated with TPT (1 µM) or CPT-11 (40 µM) for 48 h. Programmed cell death (PCD), as shown by poly(ADP-ribose) polymerase (PARP), pro-caspase-3 and pro-caspase-9 cleavage, was observed in 9D3S-S cells but not in ZR-75-1 or 9D3S-A cells. Because p125 focal… More >

  • Open Access

    ARTICLE

    Kaempferol and docetaxel diminish side population and down-regulate some cancer stem cell markers in breast cancer cell line MCF-7

    SARA SOLTANIAN1, HELIA RIAHIRAD1, ATHAREH PABARJA1, MOHAMMAD REZA KARIMZADEH2, KOLSOUM SAEIDI3,4

    BIOCELL, Vol.41, No.2-3, pp. 33-40, 2017, DOI:10.32604/biocell.2017.41.033

    Abstract Cancer stem cells (CSCs) are a small subpopulation of cancer cells whose resistance to chemotherapy and radiotherapy plays a pivotal role in treatment failure, tumor recurrence and metastasis. Today, the ability of many phytochemicals in targeting of CSCs has been identified. Kaempferol is a plant phytoestrogen that was recognized as a useful agent for targeting cancer cells by apoptosis induction, cell cycle arrest and inhibition of angiogenesis, migration, and invasion of cancer cells. In this study, we compared the effect of docetaxel as a common breast cancer chemotherapy drug and kaempferol on MCF-7 breast CSCs. Results showed that both docetaxel… More >

  • Open Access

    ARTICLE

    Epigenetic Modulations Induction Using DSCR1 Ectopic Expression in Breast Cancer Cells

    Zahra Niki Boroujeni1, Atefeh Shirkav1, Seyed Ahmad Aleyasin1,*

    Molecular & Cellular Biomechanics, Vol.16, No.1, pp. 41-58, 2019, DOI:10.32604/mcb.2019.04366

    Abstract Today, prognosis, diagnosis and treatment of cancers are progressing with non-invasive methods, including investigation and modification of the DNA methylation profile in cancer cells. One of the effective factors in regulating gene expression in mammals is DNA methylation. Methylation alterations of genes by external factors can change the expression of genes and inhibit the cancer. In the present study, we investigated the effect of Down syndrome critical region 1 gene (DSCR1) ectopic expression on the methylation status of the BCL-XL, ITGA6, TCF3, RASSF1A, DOK7, VIM and CXCR4 genes in breast cancer cell lines. The effect of DSCR1 ectopic expression on… More >

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