Expression and Clinical Significance of LC-3 and P62 
in Non-small Cell Lung Cancer

Background and objective LC-3 and P62, two of important autophagy-related proteins, were reported highly expressed in many kinds of human malignancies and associated with outcomes of the patients. The purpose of this study was to investigate the expression status of LC-3 and P62 in non-small cell lu...

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Main Authors: Cong WANG, Yongwen LI, Ying LI, Hao GONG, Hongbing ZHANG, Yin YUAN, Weiting LI, Hongyu LIU, Jun CHEN
Format: Article
Language:zho
Published: Chinese Anti-Cancer Association; Chinese Antituberculosis Association 2018-06-01
Series:Chinese Journal of Lung Cancer
Subjects:
Online Access:http://dx.doi.org/10.3779/j.issn.1009-3419.2018.06.04
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author Cong WANG
Yongwen LI
Ying LI
Hao GONG
Hongbing ZHANG
Yin YUAN
Weiting LI
Hongyu LIU
Jun CHEN
author_facet Cong WANG
Yongwen LI
Ying LI
Hao GONG
Hongbing ZHANG
Yin YUAN
Weiting LI
Hongyu LIU
Jun CHEN
author_sort Cong WANG
collection DOAJ
description Background and objective LC-3 and P62, two of important autophagy-related proteins, were reported highly expressed in many kinds of human malignancies and associated with outcomes of the patients. The purpose of this study was to investigate the expression status of LC-3 and P62 in non-small cell lung cancer patients and define the clinical-pathologic features. Methods 66 cases of non-small cell lung cancer patients were employed. The expression of LC-3 and P62 were detected by immunohistochemistry. Results LC-3 was positive stained in 27 out of 66 cases (40.9%) and P62 was positive stained in 43 out of 66 cases (65.2%). LC-3 positive staining was more frequently in squamous cell carcinoma patients (P<0.05); while P62 positive staining was more frequently in late-stage adenocarcinoma patients with metastasis (P<0.05). There was a significant negative correlation between LC-3 and P62 expressions in non-small cell lung cancer tissues (rs=-0.065, P<0.001). Kaplan-Meier analysis showed that patients with positive LC-3 expression had favorable clinical outcomes compared with the patients with negative LC-3 expression (P<0.05). Conclusion LC-3 and P62 showed abnormal expression in non-small cell lung cancer tissues, suggesting that autophagy is involved in the occurrence and development of NSCLC.
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spelling doaj.art-372982bdc24847e5b1bea47997168ad72022-12-21T17:45:22ZzhoChinese Anti-Cancer Association; Chinese Antituberculosis AssociationChinese Journal of Lung Cancer1009-34191999-61872018-06-0121644545010.3779/j.issn.1009-3419.2018.06.04Expression and Clinical Significance of LC-3 and P62 
in Non-small Cell Lung CancerCong WANG0Yongwen LI1Ying LI2Hao GONG3Hongbing ZHANG4Yin YUAN5Weiting LI6Hongyu LIU7Jun CHEN8Department of Lung Cancer SurgeryTianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, ChinaTianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, ChinaDepartment of Lung Cancer SurgeryDepartment of Lung Cancer SurgeryDepartment of Lung Cancer SurgeryDepartment of Lung Cancer SurgeryTianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin 300052, ChinaDepartment of Lung Cancer SurgeryBackground and objective LC-3 and P62, two of important autophagy-related proteins, were reported highly expressed in many kinds of human malignancies and associated with outcomes of the patients. The purpose of this study was to investigate the expression status of LC-3 and P62 in non-small cell lung cancer patients and define the clinical-pathologic features. Methods 66 cases of non-small cell lung cancer patients were employed. The expression of LC-3 and P62 were detected by immunohistochemistry. Results LC-3 was positive stained in 27 out of 66 cases (40.9%) and P62 was positive stained in 43 out of 66 cases (65.2%). LC-3 positive staining was more frequently in squamous cell carcinoma patients (P<0.05); while P62 positive staining was more frequently in late-stage adenocarcinoma patients with metastasis (P<0.05). There was a significant negative correlation between LC-3 and P62 expressions in non-small cell lung cancer tissues (rs=-0.065, P<0.001). Kaplan-Meier analysis showed that patients with positive LC-3 expression had favorable clinical outcomes compared with the patients with negative LC-3 expression (P<0.05). Conclusion LC-3 and P62 showed abnormal expression in non-small cell lung cancer tissues, suggesting that autophagy is involved in the occurrence and development of NSCLC.http://dx.doi.org/10.3779/j.issn.1009-3419.2018.06.04LC-3P62AutophagyNon-small cell lung cancerImmunohistochemistry
spellingShingle Cong WANG
Yongwen LI
Ying LI
Hao GONG
Hongbing ZHANG
Yin YUAN
Weiting LI
Hongyu LIU
Jun CHEN
Expression and Clinical Significance of LC-3 and P62 
in Non-small Cell Lung Cancer
Chinese Journal of Lung Cancer
LC-3
P62
Autophagy
Non-small cell lung cancer
Immunohistochemistry
title Expression and Clinical Significance of LC-3 and P62 
in Non-small Cell Lung Cancer
title_full Expression and Clinical Significance of LC-3 and P62 
in Non-small Cell Lung Cancer
title_fullStr Expression and Clinical Significance of LC-3 and P62 
in Non-small Cell Lung Cancer
title_full_unstemmed Expression and Clinical Significance of LC-3 and P62 
in Non-small Cell Lung Cancer
title_short Expression and Clinical Significance of LC-3 and P62 
in Non-small Cell Lung Cancer
title_sort expression and clinical significance of lc 3 and p62 
in non small cell lung cancer
topic LC-3
P62
Autophagy
Non-small cell lung cancer
Immunohistochemistry
url http://dx.doi.org/10.3779/j.issn.1009-3419.2018.06.04
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