Role of β-Estradiol in MCF-7 Breast Cancer Cell Line Based on the Bioinformatics Analysis

2018 ◽  
Vol 84 (3) ◽  
pp. 268-276
Author(s):  
Rong  Wang ◽  
Jinbin  Li ◽  
Chunyu  Yin ◽  
Di  Zhao ◽  
Yulan  Zhao ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cell Line ◽  
Cancer Cell ◽  
Breast Cancer Cell ◽  
Breast Cancer Cell Line ◽  
Bioinformatics Analysis ◽  
Cancer Cell Line ◽  
Mcf 7

scholarly journals Anticancer activity of chicken cathelicidin peptides against different types of cancer

2021 ◽  
Author(s):  
Maged Mostafa Mahmoud ◽  
Ahmed M. Al-Hejin ◽  
Turki S. Abujamel ◽  
Modhi Alenezi ◽  
Fadwa Aljoud ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cell Line ◽  
Cell Lines ◽  
Cancer Cell ◽  
Breast Cancer Cell ◽  
Breast Cancer Cell Line ◽  
Cancer Cell Line ◽  
High Dose ◽  
Mcf 7

Abstract This study served as the pioneer in studying the anti-cancer role of chicken cathelicidin peptides. Chicken cathelicidins were used as anticancer agent against the breast cancer cell line (MCF-7) and human colon cancer cell line (HCT116). An in vivo investigation was also achieved to evaluate the role of chicken cathelicidin in Ehrlich ascites cell (EAC) suppression as a tumor model after subcutaneous implantation in mice. In addition, the mechanism of action of the interaction of cationic peptides with breast cancer cell line MCF-7 was also investigated. It was found during the study that exposure of cell lines to higher concentration of chicken cathelicidin for 72 h reduced cell lines growth rate by 90%-95%. These peptides demonstrated down-regulation of (cyclin A1 and cyclin D genes) which are essential for G1/S phase transient and S/G2 phase and consequently causes “prometaphase arrest” ultimately leading to death of MCF-7 cells. The study showed two- and three-times higher expression of the caspase-3, and − 7 genes respectively in MCF-7 cells treated with chicken peptides (especially cathelicidin-2 and − 3) relative to untreated cells which encouraged pro-apoptotic pathway, autophagy, and augmentation of the anti-proliferative activity. Our data showed that chicken ( CATH-1 ) enhance releasing of TNFα, INF-γ and upregulation of granzyme K in treated mice groups, in parallel, the tumor size and volume was reduced in the treated EAC-bearing groups after cathelicidin administration compared to untreated EAC-bearing group. Additionally, animals received high dose of cathelicidin-1 (40 µg/ml) displayed an apical survival rate compared to untreated carcinoma control and animals which received low dose of cathelicidin (10 and 20 µg/ml). Tumor of mice groups treated with chicken cathelicidin displayed high area of necrosis compared to untreated EAC-bearing mice. Based on histological analysis and immunohistochemical staining revealed that the tumor section in Ehrlich solid tumor exhibited a strong Bcl2 expression in untreated control compared to mice treated with 10 & 20 µg/ml of cathelicidin. Interestingly, low expression of Bcl2 were observed in mice taken 40 µg/ml of CATH-1. This study drive intention in treatment of cancer through the efficacy of anticancer efficacy of chicken cathelicidin peptides.

Abstract 3769: Evaluation of the expression and role of miRNAs-221 and -222 in stem cells derived from breast cancer cell line MCF-7.

2013 ◽  
Author(s):  
Juliana Carneiro ◽  
Margherita Iaboni ◽  
Cristina Quintavalle ◽  
Giuseppina Roscigno ◽  
Sara Martonelli ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Stem Cells ◽  
Cell Line ◽  
Cancer Cell ◽  
Breast Cancer Cell ◽  
Breast Cancer Cell Line ◽  
Cancer Cell Line ◽  
Mcf 7

scholarly journals Anti-apoptotic function of T-KTS+, T-KTS-, WT1+/+ and WT1+/- isoforms in breast cancer

2010 ◽  
Vol 4 (5) ◽  
pp. 711-720 ◽  
Author(s):  
Potchanapond Graidist ◽  
Raphatphon Nawakhanitworakul ◽  
Jiraporn Saekoo ◽  
Chavaboon Dechsukhum ◽  
Ken Fujise
Keyword(s):  
Breast Cancer ◽  
Cell Line ◽  
Cancer Cell ◽  
Breast Cancer Cell ◽  
Breast Cancer Cell Line ◽  
Cancer Cell Line ◽  
Protein Isoforms ◽  
Caspase 7 ◽  
Mcf 7

Abstract Background: WT1 was originally identified in Wilms tumor, a childhood kidney cancer. This gene was expressed in wide variety of solid cancers. Alternative splicing of WT1 transcript generates four major protein isoforms and thirty-six minor protein isoforms, each having different functional properties. WT1 gene has been considered as a tumor suppressor gene and anti-apoptotic protein. However, the mechanism of WT1 in breast cancer remains unclear. Objective: Evaluate the role of truncated WT1 isoforms (T-KTS+ and T-KTS-) and two major WT1 isoforms (+/+ and +/-) in apoptosis in breast cancer cell line, MCF-7. Materials and methods: RNA interference (RNAi) was employed in an attempt to define the role of WT1 in a breast cancer cell line (MCF-7). Furthermore, MCF-7 overe-xpressing cells that stably expressed two truncated WT1 isoforms (T-KTS+ and T-KTS-) or two major WT1 isoforms (+/+ and +/-) were generated and exposed to Doxorubicin. The mortality of cells was determined as a percentage of trypan blue-stained cells in total cells. The apoptotic molecules in apoptosis pathway were detected using RT-PCR, caspase-7 activity assay and Western blot analysis techniques. Results: Transfection of siRNAWT1 into MCF-7 cells resulted in decreasing of WT1 protein and related to the increasing in number of cell death and caspase-7 activity. Over-expression of T-KTS+, T-KTS-, WT1+/+ and WT1+/- isoforms protected cells from cell death induced by apoptosis-inducing agent, doxorubicin. Moreover, the expression of apoptotic p53, Bak and caspase-7 were decreased by the expression of all four WT1 isoforms, especially T-KTS- and T-KTS+ isoforms. Conclusion: T-KTS+ and T-KTS- isoforms as well as WT1+/+ and WT1+/- isoforms could function as an antiapoptotic protein in breast cancer cell line, MCF-7.

scholarly journals Establishment and characterization of a new spontaneously immortalized ER−/PR−/HER2+ human breast cancer cell line, DHSF-BR16

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Stefania Nobili ◽  
Antonella Mannini ◽  
Astrid Parenti ◽  
Chiara Raggi ◽  
Andrea Lapucci ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cell Line ◽  
Cancer Cell ◽  
Breast Cancer Cell ◽  
Breast Cancer Cell Line ◽  
Cancer Biology ◽  
Cancer Cell Line ◽  
Cancer Tissue ◽  
Endoplasmic Reticulum Membrane ◽  
Mcf 7

AbstractInvasive ductal carcinoma (IDC) constitutes the most frequent malignant cancer endangering women’s health. In this study, a new spontaneously immortalized breast cancer cell line, DHSF-BR16 cells, was isolated from the primary IDC of a 74-years old female patient, treated with neoadjuvant chemotherapy and disease-free 5-years after adjuvant chemotherapy. Primary breast cancer tissue surgically removed was classified as ER−/PR−/HER2+, and the same phenotype was maintained by DHSF-BR16 cells. We examined DHSF-BR16 cell morphology and relevant biological and molecular markers, as well as their response to anticancer drugs commonly used for breast cancer treatment. MCF-7 cells were used for comparison purposes. The DHSF-BR16 cells showed the ability to form spheroids and migrate. Furthermore, DHSF-BR16 cells showed a mixed stemness phenotype (i.e. CD44+/CD24−/low), high levels of cytokeratin 7, moderate levels of cytokeratin 8 and 18, EpCAM and E-Cadh. Transcriptome analysis showed 2071 differentially expressed genes between DHSF-BR16 and MCF-7 cells (logFC > 2, p-adj < 0.01). Several genes were highly upregulated or downregulated in the new cell line (log2 scale fold change magnitude within − 9.6 to + 12.13). A spontaneous immortalization signature, mainly represented by extracellular exosomes-, plasma membrane- and endoplasmic reticulum membrane pathways (GO database) as well as by metabolic pathways (KEGG database) was observed in DHSF-BR16 cells. Also, these cells were more resistant to anthracyclines compared with MCF-7 cells. Overall, DHSF-BR16 cell line represents a relevant model useful to investigate cancer biology, to identify both novel prognostic and drug response predictive biomarkers as well as to assess new therapeutic strategies.

Sign in / Sign up

Export Citation Format

Share Document