scholarly journals Tissue transglutaminase 2 expression is epigenetically regulated in human lung cancer cells and prevents reactive oxygen species-induced apoptosis

2018 ◽  
Vol Volume 10 ◽  
pp. 2835-2848 ◽  
Author(s):  
Ming-Yang Lee ◽  
Ming-Fang Wu ◽  
Shur-Hueih Cherng ◽  
Ling-Yen Chiu ◽  
Tsung-Ying Yang ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Reactive Oxygen Species ◽  
Cancer Cells ◽  
Human Lung ◽  
Tissue Transglutaminase ◽  
Transglutaminase 2 ◽  
Human Lung Cancer ◽  
Oxygen Species ◽  
Human Lung Cancer Cells ◽  
Induced Apoptosis

scholarly journals Impact of electronic cigarette heating coil resistance on the production of reactive carbonyls, reactive oxygen species and induction of cytotoxicity in human lung cancer cells in vitro

2019 ◽  
Vol 109 ◽  
pp. 104500 ◽  
Author(s):  
Silvia Cirillo ◽  
Jose F. Urena ◽  
Joshua D. Lambert ◽  
Fabio Vivarelli ◽  
Donatella Canistro ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Reactive Oxygen Species ◽  
Cancer Cells ◽  
Human Lung ◽  
Human Lung Cancer ◽  
Oxygen Species ◽  
Heating Coil ◽  
Human Lung Cancer Cells ◽  
Coil Resistance

scholarly journals BA6 Induces Apoptosis via Stimulation of Reactive Oxygen Species and Inhibition of Oxidative Phosphorylation in Human Lung Cancer Cells

2019 ◽  
Vol 2019 ◽  
pp. 1-21 ◽  
Author(s):  
Meng-Hsuan Cheng ◽  
Hung-Ling Huang ◽  
Yen-You Lin ◽  
Kuan-Hao Tsui ◽  
Pei-Chin Chen ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Lung Cancer ◽  
Reactive Oxygen Species ◽  
Cancer Cells ◽  
Human Lung ◽  
Lung Cancer Cells ◽  
Human Lung Cancer ◽  
Oxygen Species ◽  
Apoptotic Pathway ◽  
Induced Apoptosis

Lung cancer is the leading cause of cancer deaths in the world, with a five-year survival rate of less than 30%. Clinically effective chemotherapeutic treatments at the initial stage may eventually face the dilemma of no drug being effective due to drug resistance; therefore, finding new effective drugs for lung cancer treatment is a necessary and important issue. Compounds capable of further increasing the oxidative stress of cancer cells are considered to have anticancer potential because they possessed the ability to induce apoptosis. This study mainly investigated the effects of BA6 (heteronemin), the marine sponge sesterterpene, on lung cancer cell apoptosis, via modulation of mitochondrial reactive oxygen species (mtROS) and oxidative phosphorylation (OXPHOS). BA6 has cellular cytotoxic activities against a variety of cancer cell lines, but it has no effect on nontumor cells. The BA6-treated lung cancer cells show a significant increase in both cellular ROS and mtROS, which in turn caused the loss of mitochondrial membrane potential (MMP). The increase of oxidative stress in lung cancer cells treated with BA6 was accompanied by a decrease in the expression of antioxidant enzymes Cu/Zn SOD, MnSOD, and catalase. In addition, OXPHOS performed in the mitochondria and glycolysis in the cytoplasm were inhibited, which subsequently reduced downstream ATP production. Pretreatment with mitochondria-targeted antioxidant MitoTEMPO reduced BA6-induced apoptosis through the mitochondria-dependent apoptotic pathway, which was accompanied by increased cell viability, decreased mtROS, enhanced MMP, and suppressed expression of cleaved caspase-3 and caspase-9 proteins. In conclusion, the results of this study clarify the mechanism of BA6-induced apoptosis in lung cancer cells via the mitochondrial apoptotic pathway, suggesting that it is a potentially innovative alternative to the treatment of human lung cancer.

scholarly journals The inhibition of chloride intracellular channel 1 enhances Ca2+ and reactive oxygen species signaling in A549 human lung cancer cells

2019 ◽  
Vol 51 (7) ◽  
Author(s):  
Jae-Rin Lee ◽  
Jong-Yoon Lee ◽  
Hyun-Ji Kim ◽  
Myong-Joon Hahn ◽  
Jong-Sun Kang ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Reactive Oxygen Species ◽  
Cancer Cells ◽  
Human Lung ◽  
A549 Cells ◽  
Human Lung Cancer ◽  
Oxygen Species ◽  
Human Lung Cancer Cells ◽  
Intracellular Ca ◽  
Intracellular Channel

AbstractChloride intracellular channel 1 (CLIC1) is a promising therapeutic target in cancer due to its intrinsic characteristics; it is overexpressed in specific tumor types and its localization changes from cytosolic to surface membrane depending on activities and cell cycle progression. Ca2+ and reactive oxygen species (ROS) are critical signaling molecules that modulate diverse cellular functions, including cell death. In this study, we investigated the function of CLIC1 in Ca2+ and ROS signaling in A549 human lung cancer cells. Depletion of CLIC1 via shRNAs in A549 cells increased DNA double-strand breaks both under control conditions and under treatment with the putative anticancer agent chelerythrine, accompanied by a concomitant increase in the p-JNK level. CLIC1 knockdown greatly increased basal ROS levels, an effect prevented by BAPTA-AM, an intracellular calcium chelator. Intracellular Ca2+ measurements clearly showed that CLIC1 knockdown significantly increased chelerythrine-induced Ca2+ signaling as well as the basal Ca2+ level in A549 cells compared to these levels in control cells. Suppression of extracellular Ca2+ restored the basal Ca2+ level in CLIC1-knockdown A549 cells relative to that in control cells, implying that CLIC1 regulates [Ca2+]i through Ca2+ entry across the plasma membrane. Consistent with this finding, the L-type Ca2+ channel (LTCC) blocker nifedipine reduced the basal Ca2+ level in CLIC1 knockdown cells to that in control cells. Taken together, our results demonstrate that CLIC1 knockdown induces an increase in the intracellular Ca2+ level via LTCC, which then triggers excessive ROS production and consequent JNK activation. Thus, CLIC1 is a key regulator of Ca2+ signaling in the control of cancer cell survival.

NADPH-oxidase-dependent reactive oxygen species mediate EGFR transactivation by FPRL1 in WKYMVm-stimulated human lung cancer cells

2011 ◽  
Vol 51 (6) ◽  
pp. 1126-1136 ◽  
Author(s):  
Fabio Cattaneo ◽  
Annalisa Iaccio ◽  
Germano Guerra ◽  
Stefania Montagnani ◽  
Rosario Ammendola
Keyword(s):  
Lung Cancer ◽  
Reactive Oxygen Species ◽  
Nadph Oxidase ◽  
Cancer Cells ◽  
Human Lung ◽  
Lung Cancer Cells ◽  
Human Lung Cancer ◽  
Oxygen Species ◽  
Egfr Transactivation ◽  
Human Lung Cancer Cells

Seed Oil ofBrucea javanicaInduces Cell Cycle Arrest and Apoptosis via Reactive Oxygen Species-Mediated Mitochondrial Dysfunction in Human Lung Cancer Cells

2016 ◽  
Vol 68 (8) ◽  
pp. 1394-1403 ◽  
Author(s):  
Daxuan Wang ◽  
Xueqin Qu ◽  
Xibin Zhuang ◽  
Guojun Geng ◽  
Jihuan Hou ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Reactive Oxygen Species ◽  
Cell Cycle ◽  
Cancer Cells ◽  
Seed Oil ◽  
Human Lung ◽  
Human Lung Cancer ◽  
Oxygen Species ◽  
Cycle Arrest ◽  
Human Lung Cancer Cells

scholarly journals Pseuderanthemum palatiferum (Nees) Radlk extract induces apoptosis via reactive oxygen species-mediated mitochondria-dependent pathway in A549 human lung cancer cells

2019 ◽  
Vol 18 (2) ◽  
pp. 287 ◽  
Author(s):  
Udomlak Kongprasom ◽  
Wanida Sukketsiri ◽  
Pennapa Chonpathompikunlert ◽  
Morakot Sroyraya ◽  
Somporn Sretrirutchai ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Reactive Oxygen Species ◽  
Cancer Cells ◽  
Human Lung ◽  
Reactive Oxygen ◽  
Lung Cancer Cells ◽  
Human Lung Cancer ◽  
Oxygen Species ◽  
Human Lung Cancer Cells ◽  
Dependent Pathway

A triazole-conjugated benzoxazone induces reactive oxygen species and promotes autophagic apoptosis in human lung cancer cells

APOPTOSIS ◽  
2017 ◽  
Vol 23 (1) ◽  
pp. 1-15 ◽  
Author(s):  
Chang-Heng Hsieh ◽  
Jing-Ping Wang ◽  
Chien-Chih Chiu ◽  
Chun-Yen Liu ◽  
Ching-Fa Yao ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Reactive Oxygen Species ◽  
Cancer Cells ◽  
Human Lung ◽  
Reactive Oxygen ◽  
Lung Cancer Cells ◽  
Human Lung Cancer ◽  
Oxygen Species ◽  
Human Lung Cancer Cells
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