CYTOTOXICITY EFFECTS OF TYPHONIUM FLAGELLIFORME AND CLINACANTHUS NUTANS ON BREAST CANCER CELLS

2015 ◽  
Vol 77 (31) ◽  
Author(s):  
Nadhira Atiqah Khiru Nasir ◽  
Siti Pauliena Mohd Bohari

Cancers are diseases that can cause death and breast cancer is one of the prevalence cancers. Conventional treatments have been used to treat cancer. However, these treatments produced inefficient effects and low survival rate. Therefore, most cancer patients began to consume complementary and utilized alternative treatments to alleviate their pain. This study is to identify the cytotoxicity effect of methanolic leaves extract Typhonium flagelliforme and Clinacanthus nutans on breast cancer cells (MDA-MB-231). MTT assay has been used to determine the cytotoxicity effect of both plants on MDA-MB-231 cells and CHO cells (non-cancerous cell), which acted as the positive control cells. Result revealed that T. flagelliforme extract has shown higher cytotoxic effect on MDA-MB-231cells (IC50: 0.11 mg/mL) compared to C. nutans extract (IC50: 0.17 mg/mL). Then, the IC50 values of T. flagelliforme and C. nutans extract on CHO cells were 0.10 mg/mL and 0.24 mg/mL respectively. Based on these results, T. flagelliforme represented higher toxicity effect on CHO compared to the MDA-MB-231 cells. Thus, in future CHO cell (as a positive control) can be replaced with a normal breast cell line such as HCC1395 (epithelial mammary duct of normal breast cells) to understand clearly the toxicity effect of T. flagelliforme extract towards the normal breast cell. Moreover, identification of potential compounds that can inhibit MDA-MB-231 cells growth  is also important for future research.

BMC Medicine ◽  
2010 ◽  
Vol 8 (1) ◽  
Author(s):  
Jodie M Fleming ◽  
Tyler C Miller ◽  
Mariam Quinones ◽  
Zhen Xiao ◽  
Xia Xu ◽  
...  

2014 ◽  
Vol 66 (4) ◽  
pp. 645-655 ◽  
Author(s):  
Virginie Dubois ◽  
Thierry Jardé ◽  
Laetitia Delort ◽  
Hermine Billard ◽  
Dominique Bernard-Gallon ◽  
...  

2020 ◽  
Vol 11 (11) ◽  
Author(s):  
Dipayan Bose ◽  
Sagarika Banerjee ◽  
Rajnish Kumar Singh ◽  
Lyn M. Wise ◽  
Erle S. Robertson

AbstractDysbiotic microbiomes are linked to many pathological outcomes including different metabolic disorders like diabetes, atherosclerosis and even cancer. Breast cancer is the second leading cause of cancer associated death in women, and triple negative breast cancer (TNBC) is the most aggressive type with major challenges for intervention. Previous reports suggested that Parapoxvirus signatures are one of the predominant dysbiotic viral signatures in TNBC. These viruses encode several genes that are homologs of human genes. In this study, we show that the VEGF homolog encoded by Parapoxviruses, can induce cell proliferation, and alter metabolism of breast cancer and normal breast cells, through alteration of MAPK-ERK and PI3K-AKT signaling. In addition, the activity of the transcription factor FoxO1 was altered by viral-encoded VEGF through activation of the PI3K-AKT pathway, leading to reprogramming of cellular metabolic gene expression. Therefore, this study provides new insights into the function of viral-encoded VEGFs, which promoted the growth of the breast cancer cells and imparted proliferative phenotype with altered metabolism in normal breast cells.


2009 ◽  
Vol 1237 ◽  
Author(s):  
Emily Paetzell ◽  
Andrew Bogorad ◽  
Juan Meng ◽  
Winston oluwole Soboyejo

AbstractThis paper presents the results of atomic force microscope (AFM) measurements of the adhesion force between MDA-MB-231 breast cancer cells and anti-EphA2 antibody-coated AFM tips. As a control, the adhesive interactions are measured between Hs578Bst normal breast cells and anti-EphA2 antibody-coated AFM tips. The measurements show conclusively that the adhesive forces to breast cancer cells are over five times greater than those to normal breast cells. The increase is attributed largely to the interactions between anti-EphA2 antibody and over-expressed EphA2 receptors that are revealed by the staining of receptor-ligand interactions. The implications of the results are discussed for the localized targeting and treatment of cancer with antibody-conjugated nanoparticles.


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