Glaziovianin A, a New Isoflavone, from the Leaves of Ateleia Glaziovianna and Its Cytotoxic Activity Against Human Cancer Cells.

ChemInform ◽  
2007 ◽  
Vol 38 (41) ◽  
Author(s):  
Akihito Yokosuka ◽  
Mitsue Haraguchi ◽  
Takeo Usui ◽  
Sayaka Kazami ◽  
Hiroyuki Osada ◽  
...  
Biomolecules ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 377
Author(s):  
Iván González-Chavarría ◽  
Felix Duprat ◽  
Francisco J. Roa ◽  
Nery Jara ◽  
Jorge R. Toledo ◽  
...  

Maytenus disticha (Hook F.), belonging to the Celastraceae family, is an evergreen shrub, native of the central southern mountains of Chile. Previous studies demonstrated that the total extract of M. disticha (MD) has an acetylcholinesterase inhibitory activity along with growth regulatory and insecticidal activities. β-Dihydroagarofurans sesquiterpenes are the most active components in the plant. However, its activity in cancer has not been analyzed yet. Here, we demonstrate that MD has a cytotoxic activity on breast (MCF-7), lung (PC9), and prostate (C4-2B) human cancer cells with an IC50 (µg/mL) of 40, 4.7, and 5 µg/mL, respectively, an increasing Bax/Bcl2 ratio, and inducing a mitochondrial membrane depolarization. The β-dihydroagarofuran-type sesquiterpene (MD-6), dihydromyricetin (MD-9), and dihydromyricetin-3-O-β-glucoside (MD-10) were isolated as the major compounds from MD extracts. From these compounds, only MD-6 showed cytotoxic activity on MCF-7, PC9, and C4-2B with an IC50 of 31.02, 17.58, and 42.19 µM, respectively. Furthermore, the MD-6 increases cell ROS generation, and MD and MD-6 induce a mitochondrial superoxide generation and apoptosis on MCF-7, PC9, and C4-2B, which suggests that the cytotoxic effect of MD is mediated in part by the β-dihydroagarofuran-type that induces apoptosis by a mitochondrial dysfunction.


RSC Advances ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 3872-3881
Author(s):  
Kun Yu ◽  
Xinmei Yang ◽  
Ying Li ◽  
Xue Cui ◽  
Bo Liu ◽  
...  

Twenty-one cucurbitacin IIa derivatives were synthesized and screened for cytotoxic activity.


2011 ◽  
Vol 53 (06) ◽  
pp. 428-439
Author(s):  
Fatih Uckun ◽  
Osmond D’Cruz ◽  
Xing-Ping Liu ◽  
Rama Narla

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Chia-Jung Li ◽  
Shih-Fang Tsang ◽  
Chun-Hao Tsai ◽  
Hsin-Yi Tsai ◽  
Jong-Ho Chyuan ◽  
...  

Plants are an invaluable source of potential new anti-cancer drugs.Momordica charantiais one of these plants with both edible and medical value and reported to exhibit anticancer activity. To explore the potential effectiveness ofMomordica charantia, methanol extract ofMomordica charantia(MCME) was used to evaluate the cytotoxic activity on four human cancer cell lines, Hone-1 nasopharyngeal carcinoma cells, AGS gastric adenocarcinoma cells, HCT-116 colorectal carcinoma cells, and CL1-0 lung adenocarcinoma cells, in this study. MCME showed cytotoxic activity towards all cancer cells tested, with the approximate IC50ranging from 0.25 to 0.35 mg/mL at 24 h. MCME induced cell death was found to be time-dependent in these cells. Apoptosis was demonstrated by DAPI staining and DNA fragmentation analysis using agarose gel electrophoresis. MCME activated caspase-3 and enhanced the cleavage of downstream DFF45 and PARP, subsequently leading to DNA fragmentation and nuclear condensation. The apoptogenic protein, Bax, was increased, whereas Bcl-2 was decreased after treating for 24 h in all cancer cells, indicating the involvement of mitochondrial pathway in MCME-induced cell death. These findings indicate that MCME has cytotoxic effects on human cancer cells and exhibits promising anti-cancer activity by triggering apoptosis through the regulation of caspases and mitochondria.


Molecules ◽  
2016 ◽  
Vol 21 (9) ◽  
pp. 1199 ◽  
Author(s):  
Jaime Valderrama ◽  
Virginia Delgado ◽  
Sandra Sepúlveda ◽  
Julio Benites ◽  
Cristina Theoduloz ◽  
...  

Author(s):  
Chuan Chen ◽  
Tongdan Xue ◽  
Peng Fan ◽  
Linlin Meng ◽  
Jingjing Wei ◽  
...  

2010 ◽  
Vol 128 (1) ◽  
pp. 251-253 ◽  
Author(s):  
Varsha Shriram ◽  
Vinay Kumar ◽  
P.B. Kavi Kishor ◽  
Sharad B. Suryawanshi ◽  
Ankur K. Upadhyay ◽  
...  

2010 ◽  
Vol 30 (8) ◽  
pp. 1083-1087 ◽  
Author(s):  
Hyung-In Moon ◽  
Okpyo Zee

In search for plant-derived cytotoxicity compound against human cancer cells (A549, SK-OV-3, SK-MEL-2, XF498, HCT15), it was found that the chloroform extracts obtained from the whole plant of Carpesium rosulatum MlQ. (Compositae) exhibited significant cytotoxic activity. Four sesquiterpene lactone, CRC1 (2α, 5-epoxy-5,10-dihydroxy-6-angeloyl-oxy-9β-isobutyloxy-germacran-8α,12-olide), CRC2 (2α,5-epoxy-5,10-dihydroxy-6α,9β-diangeloyloxy-germacran-8α,12-olide), CRC3 (2α,5-epoxy-5,10-dihydroxy-6α-angeloyloxy-9β-(3-methyl-butanoyloxy)-gemacran-8α,12-olide), CRC4 (2β,5-epoxy-5,10-dihydroxy-6α,9β-diangeloyloxy-germacran-8α,12-olide) were isolated from the whole parts of C. rosulatum. 2α,5-epoxy-5,10-dihydroxy-6α,9β-diangeloyloxy-germacran-8α,12-olide (CRC2) showed the most potent cytotoxicity with IC50 value of 6.01 μM against SK-MEL-2.


2016 ◽  
Vol 30 (11) ◽  
pp. 1862-1871 ◽  
Author(s):  
M. Prata-Sena ◽  
A.A. Ramos ◽  
S. Buttachon ◽  
B. Castro-Carvalho ◽  
P. Marques ◽  
...  

2012 ◽  
Vol 7 (7) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
Hyung-In Moon

In the search for antiproliferative compounds against human cancer cells (A549, SK-OV-3, SK-MEL-2, XF498, HCT15), it was found that the chloroform extracts obtained from the whole plant of Carpesium rosulatum Miq. (Compositae) exhibited significant cytotoxic activity. Two sesquiterpene lactones, CT-1 (2α,5-epoxy-5,10-dihydroxy-6-angeloyloxy-9β-isobutyloxy-germacran-8α,12-olide), and CT-2 (2β,5-epoxy-5,10-dihydroxy-6α,9β-diangeloyloxy-germacran-8α,12-olide) were isolated from the whole plant. CT-2 showed the most potent cytotoxicity with an IC50 value of 7.88 μM against SK-MEL-2.


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