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  • 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 >

  • Open Access

    ARTICLE

    Induction of Apoptosis and Autophagy Using Ectopic DSCR1 Expression in Breast Cancer Cells

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

    Molecular & Cellular Biomechanics, Vol.15, No.4, pp. 215-227, 2018, DOI:10.32604/mcb.2018.01813

    Abstract Down syndrome critical region 1 gene (DSCR1) is an anti-angiogenesis gene that inhibits the growth of tumor cells. In this study, the role of autophagy and apoptosis in DSCR1-induced cytotoxicity were investigated in MDA-MB-468 breast cancer cells. Lentivirus vector harboring DSCR1 (LV-DSCR1+) was constructed in HEK 293 cells and the optimal dosage of lentivirus vector for infection was determined by the MTT assay. After infection of cells using LV-DSCR1+, acridine orange and ethidium bromide staining was performed to investigation of apoptosis and autophagy. Expression of DSCR1 and marker genes for angiogenesis (VEGF), apoptosis (Bax and Bcl2) and autophagy (LC3 and… More >

  • Open Access

    ARTICLE

    Tumor Cell Identification in Ki-67 Images on Deep Learning

    Ruihan Zhang1,2, Junhao Yang1, Chunxiao Chen1,*

    Molecular & Cellular Biomechanics, Vol.15, No.3, pp. 177-187, 2018, DOI: 10.3970/mcb.2018.04292

    Abstract The proportion of cells staining for the nuclear antigen Ki-67 is an important predictive indicator for assessment of tumor cell proliferation and growth in routine pathological investigation. Instead of traditional scoring methods based on the experience of a trained laboratory scientist, deep learning approach can be automatically used to analyze the expression of Ki-67 as well. Deep learning based on convolutional neural networks (CNN) for image classification and single shot multibox detector (SSD) for object detection are used to investigate the expression of Ki-67 for assessment of biopsies from patients with breast cancer in this study. The results focus on… More >

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