scholarly journals In VitroModel for Studying Malignancy Associated Changes

2003 ◽  
Vol 25 (2) ◽  
pp. 95-102 ◽  
Author(s):  
Xiao Rong Sun ◽  
Yonghong Zheng ◽  
Calum MacAulay ◽  
Stephen Lam ◽  
Alexei Doudkine ◽  
...  

Malignancy associated changes (MAC) can be defined as subtle morphological and physiologic changes that are found in ostensibly normal cells of patients harboring malignant disease. It has been postulated that MAC have a potential to become a useful tool in detection, diagnosis and prognosis of malignant diseases. An in vitro cell culture model system was designed to study interactions between non‐small cell lung cancer (NSCLC) and the normal bronchial epithelium of the human respiratory tractin vivoto see if the MAC‐like phenomenon can be detected in such a system. In this study we examined changes in nuclear features of normal human bronchial epithelial cells (NHBE) when they were co‐cultured with cells derived from a lung cancer cell line NCI‐H460. Using discriminant function analysis, nuclear features were determined which allow maximal discrimination between normal cells incubated with or without cancerous cells. Our results demonstrate that MAC appear to be specific to changes induced by malignancy, and that these changes differ from those induced by growth factors in the serum. This study provides evidence in support to the hypothesis that MAC are induced by a soluble factor(s) released by malignant cells. Colour figure can be viewed onhttp://www.esacp.org/acp/2003/25‐2/sun.htm.

2006 ◽  
Vol 32 (9) ◽  
pp. 441-453 ◽  
Author(s):  
M. Waheed Roomi ◽  
Vadim Ivanov ◽  
Tatiana Kalinovsky ◽  
Aleksandra Niedzwiecki ◽  
Matthias Rath

Tumor Biology ◽  
2014 ◽  
Vol 35 (7) ◽  
pp. 7259-7266 ◽  
Author(s):  
Hongmin Wang ◽  
Xiaohong Zhang ◽  
Yuexia Li ◽  
Ruiying Chen ◽  
Songyun Ouyang ◽  
...  

2018 ◽  
Vol 187 (4) ◽  
pp. 1328-1343 ◽  
Author(s):  
Kok-Tong Tan ◽  
Shiming Li ◽  
Yi Rong Li ◽  
Shih-Lung Cheng ◽  
Sheng-Hao Lin ◽  
...  

Author(s):  
Nilay D Solanki ◽  
Alkesh Patel ◽  
Leena Patel

Objective: The objective of this study was to evaluate the cytotoxic potential of A3AR agonist (ABMECA) against human lung cancer cell line A549 by using 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide (MTT) assay. Methods: Adenocarcinoma cell line A549 was used to assess MTT based cells viability. In vitro cytotoxic activity was evaluated for 3 different concentration of doxorubicin and A3AR by MTT cytotoxicity assay. Cytotoxicity assay carried out for 3 consecutive days that involves culturing cells into Dulbecco’s MEM medium modified with 10% FBS for 24 h then treatment with different dose of standard and test drug with incubation period of 24 h followed by treatment with MTT for estimation of cytotoxicity and finally, optical density (OD) was measured at 570-630 nm. Results: Different concentration of doxorubicin (1, 5, 10 µM) and ABMECA (10-6M, 10-5M and 10-4M) shown dose-dependent cytotoxicity. There was a significant decrease (p<0.05) in cell viability in both doxorubicin and ABMECA concentration in a dose-dependent manner. This study may guide further for in vivo evaluation of test drug in the lung cancer model. Conclusion: A3 Adenosine Receptor agonist could be potential moiety for the treatment of lung cancer and it would require in vivo study for further research.


2016 ◽  
Vol 16 (5) ◽  
pp. 533-545 ◽  
Author(s):  
Xuan Pan ◽  
Rui Wang ◽  
Haibo Bian ◽  
Wei De ◽  
Ping Zhang ◽  
...  

Inhibitor of growth 4 is a member of the inhibitor of growth family proteins, which is involved in cell apoptosis, migration, invasion, and cell cycle progress. In this study, we investigated the inhibitor of growth 4 level in non-small cell lung cancer tissues and explored the antitumor activity of inhibitor of growth 4 in vitro and in vivo using non-small cell lung cancer cell line SPC-A1 and its underlying molecular mechanisms. We also explored its role on the radiosensitivity in SPC-A1 cells. The level of inhibitor of growth 4 protein was significantly decreased in 28 cases of non-small cell lung cancer tissues in comparison with corresponding noncancerous lung epithelial tissues. Upregulation of inhibitor of growth 4 by plasmid pcDNA3.1-ING4 delivery could suppress proliferation and increase apoptosis of SPC-A1 cells both in vitro and in vivo. Additionally, we found that overexpression of inhibitor of growth 4 in SPC-A1 cell line could lead to a higher Bcl-2/Bax ratio, which might be an important factor in the apoptosis regulation. Furthermore, overexpression of inhibitor of growth 4 enhanced the radiosensitivity of SPC-A1 cells to irradiation. Inhibitor of growth 4 upregulation plus radiotherapy induced synergistic tumor suppression in SPC-A1 xenografts implanted in athymic nude mice. Thus, the restoration of inhibitor of growth 4 function might provide a potential strategy for non-small cell lung cancer radiosensitization.


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