Cigarette Smoke Activates PI3 Kinase Pathway and Downregulates MicroRNA-1 in Non-Small Cell Lung Cancer (NSCLC)

Author(s):  
A. Korde ◽  
A. Ramaswami ◽  
M.S. Godfrey ◽  
S. Anderson ◽  
S. Takyar
2017 ◽  
Vol 1 (Special Issue-Supplement) ◽  
pp. 244-244
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Niraj Babu ◽  
Jayshree Advani ◽  
Hitendra S. Solanki ◽  
Krishna Patel ◽  
Ankit Jain ◽  
...  

2018 ◽  
Vol 51 ◽  
pp. 39-48 ◽  
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Haiying Wang ◽  
Danping Wang ◽  
Chunsun Li ◽  
Xingsong Zhang ◽  
Xiaolin Zhou ◽  
...  

2021 ◽  
Author(s):  
Longxia Dai ◽  
Quanwen Deng ◽  
Aibin Liu ◽  
Shuya He ◽  
Qiong Chen ◽  
...  

Abstract Background Lung cancer is a common malignant tumour and the leading cause of cancer death. Smoking is closely related to lung cancer, which can not only induce the occurrence of lung cancer but also affect its progress and prognosis. Objectives To investigated the relationship between smoking and 14-3-3σ protein expression in non-small-cell lung cancer (NSCLC), investigated the relationship between 14-3-3σ expression and cell migration in A549 cells induced by cigarette smoke extract (CSE) and explored whether DNA methylation plays a role in the decreased expression of 14-3-3σ induced by CSE. Methods 14-3-3σ protein expression was examined by immunohistochemistry in 152 NSCLC tissue samples. In vitro experiments were divided into three groups: The current smoking group (CS), the ex-smoking group (ES) and the normal control group (NC). Cell transfection was used for 14-3-3σ protein overexpression. The mRNA and protein expression levels of 14-3-3σ were detected by RT-PCR and Western blotting, respectively. Cell migration was detected by Transwell and wound-healing assays, and the methylation of 14-3-3σ was detected by methylation-specific PCR. Results 14-3-3σ protein expression was decreased in NSCLC patients with a history of smoking. The expression of 14-3-3σ was decreased in A549 cells treated with CSE. The migration capacity of A549 cells treated with CSE was enhanced. DNA methylation in the cigarette smoke-treated A549 cells was higher than that in the untreated cells. Conclusion Cigarette smoke induced reduction of 14-3-3σ expression can promote the progression of non-small cell lung cancer.


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Vol 459 (4) ◽  
pp. 415-422 ◽  
Author(s):  
Lei Xu ◽  
Xiao-yun Mao ◽  
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Hua-chuan Zheng

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Adam Stewart ◽  
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Michael Frow ◽  
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PLoS ONE ◽  
2012 ◽  
Vol 7 (2) ◽  
pp. e31331 ◽  
Author(s):  
Christopher R. Zito ◽  
Lucia B. Jilaveanu ◽  
Valsamo Anagnostou ◽  
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Oncotarget ◽  
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pp. 61229-61245 ◽  
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Nazia Syed ◽  
Hitendra S. Solanki ◽  
...  

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