scholarly journals Cytotoxic activity of erypogein d from erythrina poeppigiana (leguminosae) against cervical cancer (HeLa), breast cancer (MCF-7) and ovarian cancer (SKOV-3) cells

2018 ◽  
Vol 1013 ◽  
pp. 012198 ◽  
Author(s):  
T Herlina ◽  
S Gaffar ◽  
W Widowati
2020 ◽  
Vol 10 (3) ◽  
pp. 257-261
Author(s):  
Tati Herlina ◽  
Merlin ◽  
Mohd. Azlan ◽  
Unang Supratman

Background: Erythrina poeppigiana (Leguminosae) is a high-growing plant with an orange flower that is widely distributed in tropical and subtropical countries. This particular plant is widely used in traditional medicine for gynecological complications and the treatment of various diseases. There exists no previous information regarding cytotoxic compounds from this plant. Objective: This research is to isolate cytotoxic compounds from E. poeppigiana. Methods: The isolation step was carried out using a combination of chromatographic techniques to obtain isolated three compounds (1, 2, and 3). Results: The chemical structure of isolated compounds was elucidated by spectroscopic methods and identified as β-erythroidine (1), 8-oxo-β-erythroidine (2), and 8-oxo-α-erythroidine (3). Compounds (1-3) showed cytotoxic activity against MCF-7 breast cancer line with IC50 values of 36.8, 60.8 and 875.4 μM, respectively. Conclusion: Three compounds have been successfully isolated from Erythrina poeppigiana (Leguminosae), showing cytotoxic properties against MCF-7 breast cancer line. Structure-activity relationship studies showed that the presence of enone moiety on compound 1 can reduce its cytotoxic activity towards MCF-7 breast cancer line.


2018 ◽  
Vol 8 (3) ◽  
pp. 159 ◽  
Author(s):  
Meghan Fragis ◽  
Abdulmonem I. Murayyan ◽  
Suresh Neethirajan

Background: Breast cancer is the most commonly diagnosed cancer and the second leading cause of cancer deaths among Canadian women. Cancer management through changes in lifestyle, such as increased intake of foods rich in dietary flavonoids, have been shown to decrease the risk associated with breast, liver, colorectal, and upper-digestive cancers in epidemiologic studies. Onions are high in flavonoid content and one of the most common vegetables. Additionally, onions are used in most Canadian cuisines.Methods: We investigated the effect of five prominent Ontario grown onion (Stanley, Ruby Ring, LaSalle, Fortress, and Safrane) extracts on two subtypes of breast cancer cell lines: a triple negative breast cancer line MDA-MB-231 and an ER+ breast cancer line MCF-7.Results: These onion extracts elicited strong anti-proliferative, anti-migratory, and cytotoxic activities on both the cancer cell lines. Flavonoids present in these onion extracts induced apoptosis, cell cycle arrest in the G2/M phase, and a reduction in mitochondrial membrane potential at dose-dependent concentrations. Onion extracts were more effective against MDA-MB-231 compared to the MCF-7 cell line. Conclusion: In this study, we investigated the extracts synthesized from Ontario-grown onion varieties in inducing anti-migratory, cytostatic, and cytotoxic activities in two sub-types of human breast cancer cell lines. Anti-tumor activity of these extracts depends upon the varietal and can be formulated into nutraceuticals and functional foods for the wellbeing of cancer patients. Overall, the results suggest that onion extracts are a good source of flavonoids with anti-cancerous properties.Keywords: onion extracts; flavonoids; anti-proliferative; breast cancer; cytotoxic activity


2010 ◽  
Vol 63 (9-10) ◽  
pp. 657-661 ◽  
Author(s):  
Milena Veljkovic ◽  
Slavimir Veljkovic

Introduction. Oral contraceptives, mainly combined monophasic pills, are widely used by young women who expect their physicians to prescribe them safe drugs which will not harm their health and which will simplify their life. Numerous epidemiologic studies have been performed to determine the relation between oral contraceptive use and the development of neoplasms. Breast cancer. An increased incidence of breast cancer has occurred simultaneously with the growing use of oral contraceptives. The possibility of a link between the oral contraceptive use and breast cancer has led to intensive research, but studies have provided inconsistent results causing confusion among clinicians. It was noticed that the risk of breast cancer was slightly elevated in current and recent young oral contraceptives users. That finding could be influenced by a detection bias or could be due to the biologic effect of the pills. The absolute number of additional breast cancer cases will be very small because of low baseline incidence of the disease in young women. Oral contraceptives probably promote growth of the already existing cancer, they are probably promoters not initiators of breast cancer. The available data do not provide a conclusive answer that is need. Cervical cancer. Numerous factors may influence the development of cervical cancer. The evidence suggests that current and recent oral contraceptive users have an increased risk of cervical cancer which decline after discontinuation of the application of medication. Oral contraceptives might increase the biological vulnerability of the cervix. Cervical cancer develops slowly over a long time period and can be effectively prevented by periodic cervical screening. Fortunately, oral contraceptives do not mask abnormal cervical citology. Conclusions regarding invasive cervical cancer and oral contraceptive use are not definitive but if there is any increased risk, it is low. Endometrial cancer. In oral contraceptive users the endometrium is almost under the influence of progestin component which suppresses endometrial mitotic activity and its proliferation. Most epidemiologic studies show that oral contraceptives reduce the risk of endometrial cancer and that this protective effect exists many years after the discontinuation of medication. Ovarian cancer. It has been long known that the oral contraceptive use causes protective an ovulation and reduces the risk of ovarian cancer. This powerful reduction is the best demonstrated major benefit of oral contraception. This protection is especially observed in nulliparous and seems to persist for many years after the discontinuation of medication.


2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Wei Keat Ng ◽  
Latifah Saiful Yazan ◽  
Li Hua Yap ◽  
Wan Abd Ghani Wan Nor Hafiza ◽  
Chee Wun How ◽  
...  

Thymoquinone (TQ) has been shown to exhibit antitumor properties. Thymoquinone-loaded nanostructured lipid carrier (TQ-NLC) was developed to improve the bioavailability and cytotoxicity of TQ. This study was conducted to determine the cytotoxic effects of TQ-NLC on breast cancer (MDA-MB-231 and MCF-7) and cervical cancer cell lines (HeLa and SiHa). TQ-NLC was prepared by applying the hot high pressure homogenization technique. The mean particle size of TQ-NLC was 35.66 ± 0.1235 nm with a narrow polydispersity index (PDI) lower than 0.25. The zeta potential of TQ-NLC was greater than −30 mV. Polysorbate 80 helps to increase the stability of TQ-NLC. Differential scanning calorimetry showed that TQ-NLC has a melting point of 56.73°C, which is lower than that of the bulk material. The encapsulation efficiency of TQ in TQ-NLC was 97.63 ± 0.1798% as determined by HPLC analysis. TQ-NLC exhibited antiproliferative activity towards all the cell lines in a dose-dependent manner which was most cytotoxic towards MDA-MB-231 cells. Cell shrinkage was noted following treatment of MDA-MB-231 cells with TQ-NLC with an increase of apoptotic cell population (P<0.05). TQ-NLC also induced cell cycle arrest. TQ-NLC was most cytotoxic towards MDA-MB-231 cells. It induced apoptosis and cell cycle arrest in the cells.


2018 ◽  
Vol 17 (4) ◽  
pp. 1247-1259 ◽  
Author(s):  
Agata Kabała-Dzik ◽  
Anna Rzepecka-Stojko ◽  
Robert Kubina ◽  
Robert Dariusz Wojtyczka ◽  
Ewa Buszman ◽  
...  

Epithelium mammary carcinoma is a cancer with a high death rate among women. One factor having a significant impact on metastasis is cell migration. The aim of this study was to compare migration rate inhibition of caffeic acid (CA) and its phenethyl ester (CAPE) on MCF-7 breast cancer cells. Microscopic evaluation was used to determine the morphology of carcinoma cells, before and after 24-hour treatment with CA and CAPE using a dose of 50 µM. The cytotoxic effect was measured by XTT-NR-SRB assay (tetrazolium hydroxide-neutral red-Sulforhodamine B) for 24-hour and 48-hour periods, using CA and CAPE, with doses of 50 and 100 µM. These doses were used to determine cell migration inhibition using a wound closure assay for 0-hour, 8-hour, 16-hour, and 24-hour periods. Both CA and CAPE treatments displayed cytotoxic activity in a dose- and time-dependent trend. CAPE displayed IC50 values more than twice as low as CA. IC50 values for the XTT assay were as follows: CA was 102.98 µM for 24 hours and 59.12 µM for 48 hours, while CAPE was 56.39 µM for 24 hours and 28.10 µM for 48 hours. For the NR assay: CA was 84.87 µM at 24 hours and 65.05 µM at 48 hours, while CAPE was 69.05 µM at 24 hours and 29.05 µM at 48 hours. For the SRB assay: At 24 hours, CA was 83.47 µM and 53.46 µM at 48 hours, while CAPE was 38.53 µM at 24 hours and 20.15 µM at 48 hours. Both polyphenols induced migration inhibition, resulting in practically halting the wound closure. CAPE produced better results than CA with the same doses and experiment times, though both CA and CAPE displayed cytotoxic activity against MCF-7 cells, as well as inhibited migration.


2010 ◽  
Vol 17 (1) ◽  
pp. 147-157 ◽  
Author(s):  
Anna Konwisorz ◽  
Anette Springwald ◽  
Martina Haselberger ◽  
Regina Goerse ◽  
Olaf Ortmann ◽  
...  

ICB-1 chromosome 1 open reading frame 38 (C1orf38) is a human gene initially described by our group to be involved in differentiation processes of cancer cells. Recently, we have reported ICB-1 as a novel estrogen target gene and identified an estrogen response element in its promoter. In this study, we examined the role of ICB-1 in regulation of proliferation of breast and ovarian cancer cells. We knocked down its expression in estrogen-dependent MCF-7 breast cancer cells and hormone-unresponsive SK-OV-3 ovarian cancer cells by stable transfection with a specific shRNA plasmid followed by G-418 selection. Knockdown of ICB-1 enabled a considerable estrogen response of SK-OV-3 cells in terms of proliferation. This transformation of SK-OV-3 cells into an estrogen-responsive phenotype was accompanied by upregulation of estrogen receptor α (ERα) expression and a significant decrease of ERβ expression on the mRNA level. Expression of ERα-dependent genes progesterone receptor, pS2, fibulin 1c, and c-fos was elevated in SK-OV-3 cells stably expressing ICB-1 shRNA. In MCF-7 cells, ICB-1 knockdown exerted similar effects on gene expression, supporting a general role of ICB-1 in estrogen responsiveness. Our data suggest that differentiation-associated gene ICB-1 might exert antagonistic actions on cellular estrogen response, which can result in inhibition of estradiol-triggered proliferation. The molecular mechanisms mediating this inhibitory effect of ICB-1 on estrogen signaling are suggested to be limitation of ERα transcript levels but sustaining high levels of ERβ, reducing both activation of ERα target genes and cellular proliferation. The identification of ICB-1 as a new player in endocrine-related cancer encourages further studies on the significance of this gene in cancer development and therapy.


2012 ◽  
Vol 65 (12) ◽  
pp. 1625 ◽  
Author(s):  
Vasilis I. Balas ◽  
Christina N. Banti ◽  
Nikolaos Kourkoumelis ◽  
Sotiris K. Hadjikakou ◽  
George D. Geromichalos ◽  
...  

Crystals of Ph3SnCl (1) were grown from a methanol/acetonitrile solution. Compounds [Ph3SnOH]n (2) and [(Ph2Sn)4Cl2O2(OH)2] (3) were crystallized from diethyl ether/methanol/acetonitrile and hot acetone/water solutions respectively, of the white precipitation, formed by adding KOH to solutions of 1 and [Ph2SnCl2] in 1 : 1 and 1 : 2 molar ratios respectively. Complex 1 was characterized by X-ray crystallography. X-ray structure determination of compounds 2 and 3 confirmed the previously reported identities. The molecular structure of 1, reported here, is a new polymorphic form of the known one for Ph3SnCl. Four independent [Ph3SnCl] molecules constitute the crystal structure of 1. The moieties are packed in two pairs in a tail-to-tail arrangement. Complexes 1–3 were evaluated for their in vitro cytotoxic activity (cell viability) against human cancer cell lines: HeLa (human cervical), MCF-7 (breast, estrogen receptor (ER) positive), MDA-MB-231 (breast, ER negative), A549 (lung), Caki-1 (kidney carcinoma), 786-O (renal adenocarcinoma), K1 (thyroid carcinoma), and the normal human lung cell line MRC-5 (normal human fetal lung fibroblast cells) versus, the normal immortalized human mammary gland epithelial cell line MTSV17 with a sulforhodamine B (SRB) assay. The results show potent cytotoxic activity of the complexes against all cell lines used, which was superior to that of cisplatin (CDDP). Compounds 1–3 showed higher activity against breast cancer cells MCF-7 (ER positive) than against of MDA-MB-231 (ER negative). These findings prompted us to search for possible interaction of these complexes with other cellular elements of fundamental importance in cell proliferation. The influence of these complexes 1–3 upon the catalytic peroxidation of linoleic acid to hydroperoxylinoleic acid by the enzyme lipoxygenase (LOX), as well as their binding affinity towards calf thymus-DNA, were kinetically and theoretically studied.


1998 ◽  
Vol 122 (1-2) ◽  
pp. 17-23 ◽  
Author(s):  
Annie Panzer ◽  
Mona-Lisa Lottering ◽  
Pepita Bianchi ◽  
Deborah K Glencross ◽  
Jenny H Stark ◽  
...  

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