Effect of Inhibiting NGAL Gene Expression on A549 Lung Cancer Cell Migration and Invasion
Background and objective To detect the expression of neutrophil gelatinase-assoeiated lipocalin (NGAL) in the different differentiations of lung cancer tissues and to study the mechanism of invasion of A549 cells affected by NGAL. Methods The expression of NGAL was detected by immunochemistry in lun...
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Chinese Anti-Cancer Association; Chinese Antituberculosis Association
2015-04-01
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Online Access: | http://dx.doi.org/10.3779/j.issn.1009-3419.2015.04.03 |
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doaj-25647a13dd44404e80f125dd40eb42282020-11-24T23:08:21ZzhoChinese Anti-Cancer Association; Chinese Antituberculosis AssociationChinese Journal of Lung Cancer1009-34191999-61872015-04-0118418719210.3779/j.issn.1009-3419.2015.04.03Effect of Inhibiting NGAL Gene Expression on A549 Lung Cancer Cell Migration and InvasionJian TANG0Jie LI1Shaojun LI2Jingbo LI3Changhai YU4Chengze WEI5Affiliated Hospital of Academy of Military Medical Sciences, Beijing 100071, ChinaDepartment of Chest Surgery, General Hospital of Chinese People's Liberation Army, Beijing 100853, ChinaDepartment of Cardiothoracic Surgery, the First Affiliated Hospital of General Hospital of Chinese People's Liberation Army, Beijing 100048, ChinaDepartment of Cardiothoracic Surgery, the First Affiliated Hospital of General Hospital of Chinese People's Liberation Army, Beijing 100048, ChinaDepartment of Cardiothoracic Surgery, the First Affiliated Hospital of General Hospital of Chinese People's Liberation Army, Beijing 100048, ChinaAffiliated Hospital of Academy of Military Medical Sciences, Beijing 100071, ChinaBackground and objective To detect the expression of neutrophil gelatinase-assoeiated lipocalin (NGAL) in the different differentiations of lung cancer tissues and to study the mechanism of invasion of A549 cells affected by NGAL. Methods The expression of NGAL was detected by immunochemistry in lung cancer tissue and the tissue around edge of the cancer. The effect of NGAL expression on A549 cells was observed by using qRT-PCR and Western blot. The abilities of invasion and metastasis were evaluated by transwell invasion and migration assay, and cell scratch assay in vitro. The protein expression of E-cadherin, Vimentin was measured by immunofluoresence and Western blot. Results The positive expression rate of NGAL was 76.32% (58/76) in the lung cancer, 13.3% (4/30) in adjacent tissue by immunochemistry. NGAL expression levels in the lung cancer tissues were significantly higher than that in adjacent tissues. The rate of migration and invasion in NGAL-siRNA group was 60.4%±6.4% compared to 50.5%±4.4% in the control group, there was a significant difference (P<0.05). Vimentin was suppressed, and E-cadherin was upregulated when NGAL was inhibited. MMP-2 and MMP-9 decreased when NGAL was knocked down. Conclusion The expression level of NGAL is highly expressed in lung cancer. NGAL may be one of important indicators involved in lung cancer infiltrated and transferred. NGAL might be one of potential targets for lung cancer treatment.http://dx.doi.org/10.3779/j.issn.1009-3419.2015.04.03Lung neoplasmsNeutrophil gelatinase-associated lipocalinMigrationInvasionEpithelial-mesenchymal transition |
collection |
DOAJ |
language |
zho |
format |
Article |
sources |
DOAJ |
author |
Jian TANG Jie LI Shaojun LI Jingbo LI Changhai YU Chengze WEI |
spellingShingle |
Jian TANG Jie LI Shaojun LI Jingbo LI Changhai YU Chengze WEI Effect of Inhibiting NGAL Gene Expression on A549 Lung Cancer Cell Migration and Invasion Chinese Journal of Lung Cancer Lung neoplasms Neutrophil gelatinase-associated lipocalin Migration Invasion Epithelial-mesenchymal transition |
author_facet |
Jian TANG Jie LI Shaojun LI Jingbo LI Changhai YU Chengze WEI |
author_sort |
Jian TANG |
title |
Effect of Inhibiting NGAL Gene Expression on A549 Lung Cancer Cell Migration and Invasion |
title_short |
Effect of Inhibiting NGAL Gene Expression on A549 Lung Cancer Cell Migration and Invasion |
title_full |
Effect of Inhibiting NGAL Gene Expression on A549 Lung Cancer Cell Migration and Invasion |
title_fullStr |
Effect of Inhibiting NGAL Gene Expression on A549 Lung Cancer Cell Migration and Invasion |
title_full_unstemmed |
Effect of Inhibiting NGAL Gene Expression on A549 Lung Cancer Cell Migration and Invasion |
title_sort |
effect of inhibiting ngal gene expression on a549 lung cancer cell migration and invasion |
publisher |
Chinese Anti-Cancer Association; Chinese Antituberculosis Association |
series |
Chinese Journal of Lung Cancer |
issn |
1009-3419 1999-6187 |
publishDate |
2015-04-01 |
description |
Background and objective To detect the expression of neutrophil gelatinase-assoeiated lipocalin (NGAL) in the different differentiations of lung cancer tissues and to study the mechanism of invasion of A549 cells affected by NGAL. Methods The expression of NGAL was detected by immunochemistry in lung cancer tissue and the tissue around edge of the cancer. The effect of NGAL expression on A549 cells was observed by using qRT-PCR and Western blot. The abilities of invasion and metastasis were evaluated by transwell invasion and migration assay, and cell scratch assay in vitro. The protein expression of E-cadherin, Vimentin was measured by immunofluoresence and Western blot. Results The positive expression rate of NGAL was 76.32% (58/76) in the lung cancer, 13.3% (4/30) in adjacent tissue by immunochemistry. NGAL expression levels in the lung cancer tissues were significantly higher than that in adjacent tissues. The rate of migration and invasion in NGAL-siRNA group was 60.4%±6.4% compared to 50.5%±4.4% in the control group, there was a significant difference (P<0.05). Vimentin was suppressed, and E-cadherin was upregulated when NGAL was inhibited. MMP-2 and MMP-9 decreased when NGAL was knocked down. Conclusion The expression level of NGAL is highly expressed in lung cancer. NGAL may be one of important indicators involved in lung cancer infiltrated and transferred. NGAL might be one of potential targets for lung cancer treatment. |
topic |
Lung neoplasms Neutrophil gelatinase-associated lipocalin Migration Invasion Epithelial-mesenchymal transition |
url |
http://dx.doi.org/10.3779/j.issn.1009-3419.2015.04.03 |
work_keys_str_mv |
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