scholarly journals Antiproliferative Effect of Grammatophyllum speciosum Ethanolic Extract and Its Bioactive Compound on Human Breast Cancer Cells

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Verisa Chowjarean ◽  
Kamala Sadabpod

Background/Aim. Grammatophyllum speciosum Blume exhibits various promising pharmacological activities. However, its effect on breast cancer has not been determined. Materials and Methods. The antiproliferation effects of the G. speciosum pseudobulb ethanolic extract (GSE) and isovitexin (bioactive constituent) were investigated on the MCF-7 human breast cancer cell line using MTT and colony formation assay. The expression levels of proliferation-regulatory proteins were determined by western blotting. Results. Noncytotoxic concentrations of GSE significantly suppressed the proliferation of MCF-7 cells. Tumor colony formation decreased in both number and size. The level of phosphorylated AKT and β-catenin was suppressed by GSE treatment. Antiproliferation was observed in isovitexin-treated MCF-7 cells in the form of inhibited colony formation and reduced expression of phosphorylated AKT and β-catenin protein. Conclusions. This study demonstrates the novel effect of G. speciosum as an antiproliferative via suppression of the AKT/β-catenin-dependent pathway. This may prompt further investigation of this plant in breast cancer therapy.

2018 ◽  
Vol 7 (1) ◽  
pp. 10-12
Author(s):  
Gayathri P ◽  
◽  
Dhana Sekar V ◽  
Sudhakar K ◽  
Sangeetha M ◽  
...  

Reissantia indica belongs to the family Celastraceae, is a native shrub to Maharashtra and Bengal, India. Its distinct plant parts are said to possess different activities, natives of Maharashtra and Bengal are using the plant parts for various purposes. In this experiment, the effect of ethanolic extract to destroy the cancer cells was studied. Study was carried on with human breast cancer cell line (MCF-7). Preparation of cell line was done using the reagents under standard protocol. Effect of plant extract on the cancer cells were recorded at two different timings (24 & 48 Hrs) respectively. Various doses of plant extract and standard were taken and introduced into cell line. Using 96 well plates the cells were seeded and studied for the viability. From the tabulated records, it clearly shows us the dose dependent response for the inhibition of cells. The maximum concentration of the plant extract 100µg/ml was found to be effective


1988 ◽  
Vol 118 (1) ◽  
pp. 149-154 ◽  
Author(s):  
E. F. Adams ◽  
N. G. Coldham ◽  
V. H. T. James

ABSTRACT We have examined the direct effects of progestins, oestrogens, peptide hormones and growth factors on oestradiol-17β dehydrogenase (OE2DH) activity of cultures of the human breast cancer cell line MCF-7. Cells were cultured in the presence of steroid or peptide for 6 days, after which the number of cells was determined and cellular OE2DH activity assessed. Progesterone, 6α-methyl-17α-hydroxyprogesterone acetate, norethisterone and d(−)-norgestrel all profoundly inhibited cell mitosis and stimulated reductive (oestrone→oestradiol-17β) and oxidative (oestradiol-17β→oestrone) OE2DH activity. Both oestrone and oestradiol-17β directly stimulated reductive OE2DH activity, but had no effect on the oxidative direction. Oestradiol-17β stimulated cell growth only in phenolred free culture medium. Ovine prolactin, LH, epidermal growth factor and transforming growth factor did not alter OE2DH activity but small stimulatory effects on the growth of MCF-7 cells were exerted by prolactin and a combination of transforming growth factor with epidermal growth factor. It is concluded that these results may explain, at least in part, the alterations in mitotic activity and tissue oestradiol-17β levels observed in breast tissue during varying physiological and pathological conditions, such as during the menstrual cycle and in breast cancers. J. Endocr. (1988) 118, 149–154


1989 ◽  
Vol 122 (1) ◽  
pp. 331-340 ◽  
Author(s):  
R. Clarke ◽  
N. Brünner ◽  
E. W. Thompson ◽  
P. Glanz ◽  
D. Katz ◽  
...  

ABSTRACT Among the processes contributing to the progressive acquisition of the highly malignant phenotype in breast cancer are ovarian-independent growth, antioestrogen resistance and increased metastatic potential. We have previously observed that increased invasiveness and development of ovarian-independent growth occur independently. In an attempt to define the inter-relationships between these processes further, we have compared the phenotypes of ovarian-independent, invasive and antioestrogen-resistant sublines of the ovarian-dependent human breast cancer cell line MCF-7. Cells acquiring ovarian-independent growth can retain sensitivity to anti-oestrogens. One clone of MCF-7 cells selected for stable antioestrogen resistance has become non-tumorigenic but its invasive potential remains unaltered. Thus, acquisition of some characteristics of the progressed phenotype can occur independently. This phenomenon of independent parameters in phenotypic progression could partly explain the considerable intra- and intertumour heterogeneity characteristic of breast tumours. Journal of Endocrinology (1989) 122, 331–340


2002 ◽  
Vol 129 (1-2) ◽  
pp. 55-63 ◽  
Author(s):  
Christel M Olsen ◽  
Elise T.M Meussen-Elholm ◽  
Jørn A Holme ◽  
Jan K Hongslo

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