The Cytotoxicity and Anti Migratory Effect of Curcuma zedoaria Essential Oil on 4T1 Breast Cancer Cells

Radiation is a widely used therapeutic method for treating breast cancer. N-dihydrogalactochitosan (GC), a biocompatible immunostimulant, is known to enhance the effects of various treatment modalities in different tumor types. However, whether GC can enhance the radiosensitivity of cancer cells remains to be explored. In this study, triple-negative murine 4T1 breast cancer cells transduced with multi-reporter genes were implanted in immunocompetent Balb/C mice to track, dissect, and identify liver-metastatic 4T1 cells. These cells expressed cancer stem cell (CSC) -related characteristics, including the ability to form spheroids, the expression of the CD44 marker, and the increase of protein stability. We then ex vivo investigated the potential effect of GC on the radiosensitivity of the liver-metastatic 4T1 breast cancer cells and compared the results to those of parental 4T1 cells subjected to the same treatment. The cells were irradiated with increased doses of X-rays with or without GC treatment. Colony formation assays were then performed to determine the survival fractions and radiosensitivity of these cells. We found that GC preferably increased the radiosensitivity of liver-metastatic 4T1 breast cancer cells rather than that of the parental cells. Additionally, the single-cell DNA electrophoresis assay (SCDEA) and γ-H2AX foci assay were performed to assess the level of double-stranded DNA breaks (DSBs). Compared to the parental cells, DNA damage was significantly increased in liver-metastatic 4T1 cells after they were treated with GC plus radiation. Further studies on apoptosis showed that this combination treatment increased the sub-G1 population of cells, but not caspase-3 cleavage, in liver-metastatic breast cancer cells. Taken together, the current data suggest that the synergistic effects of GC and irradiation might be used to enhance the efficacy of radiotherapy in treating metastatic tumors.

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Erratum to: Anti-invasive effect of β-myrcene, a component of the essential oil from Pinus koraiensis cones, in metastatic MDA-MB-231 human breast cancer cells

Journal of the Korean Society for Applied Biological Chemistry ◽

10.1007/s13765-015-0099-6 ◽

2015 ◽

Vol 58 (4) ◽

pp. 627-627

Author(s):

Jeong-Ho Lee ◽

Kicheol Lee ◽

Da Hyun Lee ◽

Soon Young Shin ◽

Yeonjoong Yong ◽

...

Keyword(s):

Breast Cancer ◽

Essential Oil ◽

Cancer Cells ◽

Human Breast Cancer ◽

Breast Cancer Cells ◽

Pinus Koraiensis ◽

Human Breast Cancer Cells ◽

Human Breast

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A Prussian Blue ZnO Carbon Nanotube Composite for Chronoamperometrically Assaying H2O2in BT20 and 4T1 Breast Cancer Cells

Analytical Chemistry ◽

10.1021/acs.analchem.9b01636 ◽

2019 ◽

Vol 91 (16) ◽

pp. 10573-10581 ◽

Cited By ~ 1

Author(s):

Raja Ram Pandey ◽

Yuhang Guo ◽

Ying Gao ◽

Charles C. Chusuei

Keyword(s):

Breast Cancer ◽

Carbon Nanotube ◽

Prussian Blue ◽

Cancer Cells ◽

Breast Cancer Cells ◽

Carbon Nanotube Composite ◽

4T1 Breast Cancer

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A New Highlight of Ephedra alata Decne Properties as Potential Adjuvant in Combination with Cisplatin to Induce Cell Death of 4T1 Breast Cancer Cells In Vitro and In Vivo

Cells ◽

10.3390/cells9020362 ◽

2020 ◽

Vol 9 (2) ◽

pp. 362 ◽

Cited By ~ 6

Author(s):

Fairouz Sioud ◽

Souheila Amor ◽

Imène ben Toumia ◽

Aida Lahmar ◽

Virginie Aires ◽

...

Keyword(s):

Breast Cancer ◽

Cancer Cells ◽

Breast Cancer Cells ◽

Protective Action ◽

Dependent Manner ◽

4T1 Breast Cancer ◽

Induced Apoptosis ◽

Cellular Modifications

Despite major advances in the last 10 years, whether in terms of prevention or treatment, the 5 year survival rate remains relatively low for a large number of cancers. These therapeutic failures can be the consequence of several factors associated with the cellular modifications or with the host by itself, especially for some anticancer drugs such as cisplatin, which induces a nephrotoxicity. In the strategy of research for active molecules capable both of exerting a protective action against the deleterious effects of cisplatin and exerting a chemosensitizing action with regard to cancer cells, we tested the potential effects of Ephedra alata Decne extract (E.A.) rich in polyphenolic compounds towards a 4T1 breast cancer model in vitro and in vivo. We showed that E.A. extract inhibited cell viability of 4T1 breast cancer cells and induced apoptosis in a caspase-dependent manner, which involved intrinsic pathways. Very interestingly, we observed a synergic antiproliferative and pro-apoptotic action with cisplatin. These events were associated with a strong decrease of breast tumor growth in mice treated with an E.A./cisplatin combination and simultaneously with a decrease of hepato- and nephrotoxicities of cisplatin.

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