Biglycan induced growth inhibition in pancreatic cancer cell lines is caused by cell cycle arrest in G1

2000 ◽  
Vol 118 (4) ◽  
pp. A541
Author(s):  
Gerrit Sommer ◽  
Martina Weimer ◽  
Uli Lacher ◽  
Claudia Ruhland ◽  
Christoph Wenger ◽  
...  
2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Hoang Le Tuan Anh ◽  
Phuong Thao Tran ◽  
Do Thi Thao ◽  
Duong Thu Trang ◽  
Nguyen Hai Dang ◽  
...  

Degalactotigonin (1) and three other steroidal compounds solasodine (2), O-acetyl solasodine (3), and soladulcoside A (4) were isolated from the methanolic extract of Solanum nigrum, and their chemical structures were elucidated by spectroscopic analyses. The isolated compounds were evaluated for cytotoxic activity against human pancreatic cancer cell lines (PANC1 and MIA-PaCa2) and lung cancer cell lines (A549, NCI-H1975, and NCI-H1299). Only degalactotigonin (1) showed potent cytotoxicity against these cancer cell lines. Compound 1 induced apoptosis in PANC1 and A549 cells. Further study on its mechanism of action in PANC1 cells demonstrated that 1 significantly inhibited EGF-induced proliferation and migration in a concentration-dependent manner. Treatment of PANC1 cells with degalactotigonin induced cell cycle arrest at G0/G1 phase. Compound 1 induced downregulation of cyclin D1 and upregulation of p21 in a time- and concentration-dependent manner and inhibited EGF-induced phosphorylation of EGFR, as well as activation of EGFR downstream signaling molecules such as Akt and ERK.


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.


2012 ◽  
Vol 13 (10) ◽  
pp. 5131-5136 ◽  
Author(s):  
Aied M. Alabsi ◽  
Rola Ali ◽  
Abdul Manaf Ali ◽  
Sami Abdo Radman Al-Dubai ◽  
Hazlan Harun ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (94) ◽  
pp. 91386-91393 ◽  
Author(s):  
Jianfa Zong ◽  
Dongxu Wang ◽  
Weiting Jiao ◽  
Liang Zhang ◽  
Guanhu Bao ◽  
...  

Oleiferasaponin C6 was isolated from Camellia oleifera Abel. and inhibits proliferation through inducing cell-cycle arrest and apoptosis on cancer cell lines in vitro.


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