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Javanmardifard Z, Rahmani S, Bayat H, Mirtavoos-Mahyari H, Ghanei M, Mowla SJ. A comprehensive in silico analysis and experimental validation of miRNAs capable of discriminating between lung adenocarcinoma and squamous cell carcinoma. Front Genet 2024; 15:1419099. [PMID: 39381140 PMCID: PMC11460580 DOI: 10.3389/fgene.2024.1419099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 09/10/2024] [Indexed: 10/10/2024] Open
Abstract
Background Accurate differentiation between lung adenocarcinoma (AC) and lung squamous cell carcinoma (SCC) is crucial owing to their distinct therapeutic approaches. MicroRNAs (miRNAs) exhibit variable expression across subtypes, making them promising biomarkers for discrimination. This study aimed to identify miRNAs with robust discriminatory potential between AC and SCC and elucidate their clinical significance. Methods MiRNA expression profiles for AC and SCC patients were obtained from The Cancer Genome Atlas (TCGA) database. Differential expression analysis and supervised machine learning methods (Support Vector Machine, Decision trees and Naïve Bayes) were employed. Clinical significance was assessed through receiver operating characteristic (ROC) curve analysis, survival analysis, and correlation with clinicopathological features. Validation was conducted using reverse transcription quantitative polymerase chain reaction (RT-qPCR). Furthermore, signaling pathway and gene ontology enrichment analyses were conducted to unveil biological functions. Results Five miRNAs (miR-205-3p, miR-205-5p, miR-944, miR-375 and miR-326) emerged as potential discriminative markers. The combination of miR-944 and miR-326 yielded an impressive area under the curve of 0.985. RT-qPCR validation confirmed their biomarker potential. miR-326 and miR-375 were identified as prognostic factors in AC, while miR-326 and miR-944 correlated significantly with survival outcomes in SCC. Additionally, exploration of signaling pathways implicated their involvement in key pathways including PI3K-Akt, MAPK, FoxO, and Ras. Conclusion This study enhances our understanding of miRNAs as discriminative markers between AC and SCC, shedding light on their role as prognostic indicators and their association with clinicopathological characteristics. Moreover, it highlights their potential involvement in signaling pathways crucial in non-small cell lung cancer pathogenesis.
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Affiliation(s)
- Zahra Javanmardifard
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Saeid Rahmani
- School of Computer Science, Institute for Research in Fundamental Science (IPM), Tehran, Iran
| | - Hadi Bayat
- Biochemical Neuroendocrinology, Institut de Recherches Cliniques de Montréal (IRCM), affiliated to the Division of Experimental Medicine, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada
| | - Hanifeh Mirtavoos-Mahyari
- Lung Transplantation Research Center (LTRC), National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mostafa Ghanei
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Seyed Javad Mowla
- Department of Molecular Genetics, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
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Priya Asokan L, A S, Kani V, Srinivasan C. Unlocking Precise Lung Cancer Detection Through Minimal Panel Immunostaining in Small Biopsy Samples. Cureus 2024; 16:e63159. [PMID: 39070322 PMCID: PMC11272665 DOI: 10.7759/cureus.63159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Accepted: 06/25/2024] [Indexed: 07/30/2024] Open
Abstract
Introduction Lung cancer diagnosis faces challenges due to morphological heterogeneity and limited biopsy tissue. This study evaluates the efficacy of a minimal panel immunostaining technique using immunohistochemical markers like napsin A, thyroid transcription factor 1 (TTF-1), p63, and synaptophysin to improve the precision of lung carcinoma subclassification. Methods A retrospective analytical study was conducted at the Histopathology Laboratory of Saveetha Medical College and Hospital, Chennai, from January 2018 to February 2024. A total of 64 lung carcinoma cases were analyzed. Inclusion criteria included biopsy samples from lung lesions with a confirmed diagnosis of lung carcinoma based on histomorphological examination, covering all age groups and both genders. Non-carcinomatous lung lesions were excluded. Clinical data were obtained from the Medical Information Archiving Software (MIAS) database and histopathological examination request forms. Under a light microscope, tissue samples were examined after being fixed in formalin, processed, and stained with hematoxylin and eosin (H&E). Additionally, a minimal panel of immunohistochemical markers, including napsin A, TTF-1, p63, and synaptophysin, was used to subclassify lung carcinomas. Results The age group older than 50 years was the most affected, with a higher incidence in males. Histologically, 49% of cases were adenocarcinoma, 42% were squamous cell carcinoma, and 9% were small cell carcinoma. Immunohistochemistry (IHC) results adjusted these proportions to 54.6% adenocarcinoma, 31.2% squamous cell carcinoma, and 14% small cell carcinoma, showing a 5.6% increase in adenocarcinoma cases. The most common adenocarcinoma pattern was mixed, followed by acinar. TTF-1 and napsin A were crucial for identifying adenocarcinoma, while p63 was key for squamous cell carcinoma. Synaptophysin confirmed neuroendocrine differentiation in small cell carcinoma. Conclusion Incorporating a minimal panel of IHC markers significantly enhances the accuracy of lung carcinoma subclassification, addressing diagnostic challenges posed by morphological heterogeneity and limited sample size. This approach supports more precise and efficient clinical care for patients with lung cancer. Further validation in diverse clinical settings is recommended.
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Affiliation(s)
- Lakshmi Priya Asokan
- Department of Pathology, Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Sumithra A
- Department of Pathology, Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Vallal Kani
- Department of Pathology, Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Chitra Srinivasan
- Department of Pathology, Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
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Kookli K, Soleimani KT, Amr EF, Ehymayed HM, Zabibah RS, Daminova SB, Saadh MJ, Alsaikhan F, Adil M, Ali MS, Mohtashami S, Akhavan-Sigari R. Role of microRNA-146a in cancer development by regulating apoptosis. Pathol Res Pract 2024; 254:155050. [PMID: 38199132 DOI: 10.1016/j.prp.2023.155050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/10/2023] [Accepted: 10/12/2023] [Indexed: 01/12/2024]
Abstract
Despite great advances in diagnostic and treatment options for cancer, like chemotherapy surgery, and radiation therapy it continues to remain a major global health concern. Further research is necessary to find new biomarkers and possible treatment methods for cancer. MicroRNAs (miRNAs), tiny non-coding RNAs found naturally in the body, can influence the activity of several target genes. These genes are often disturbed in diseases like cancer, which perturbs functions like differentiation, cell division, cell cycle, apoptosis and proliferation. MiR-146a is a commonly and widely used miRNA that is often overexpressed in malignant tumors. The expression of miR-146a has been correlated with many pathological and physiological changes in cancer cells, such as the regulation of various cell death paths. It's been established that the control of cell death pathways has a huge influence on cancer progression. To improve our understanding of the interrelationship between miRNAs and cancer cell apoptosis, it's necessary to explore the impact of miRNAs through the alteration in their expression levels. Research has demonstrated that the appearance and spread of cancer can be mitigated by moderating the expression of certain miRNA - a commencement of treatment that presents a hopeful approach in managing cancer. Consequently, it is essential to explore the implications of miR-146a with respect to inducing different forms of tumor cell death, and evaluate its potential to serve as a target for improved chemotherapy outcomes. Through this review, we provide an outline of miR-146a's biogenesis and function, as well as its significant involvement in apoptosis. As well, we investigate the effects of exosomal miR-146a on the promotion of apoptosis in cancer cells and look into how it could possibly help combat chemotherapeutic resistance.
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Affiliation(s)
- Keihan Kookli
- International Campus, Iran University of Medical Sciences, Tehran, Iran
| | | | - Eman Fathy Amr
- College of Nursing, National University of Science and Technology, Dhi Qar, Iraq
| | | | - Rahman S Zabibah
- Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
| | - Shakhnoza B Daminova
- Department of Prevention of Dental Diseases, Tashkent State Dental Institute, Tashkent, Uzbekistan; Department of Scientific affairs, Tashkent Medical Pediatric Institute, Bogishamol Street 223, Tashkent, Uzbekistan
| | - Mohamed J Saadh
- Faculty of Pharmacy, Middle East University, Amman 11831, Jordan
| | - Fahad Alsaikhan
- College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia; School of Pharmacy, Ibn Sina National College for Medical Studies, Jeddah, Saudi Arabia.
| | | | | | - Saghar Mohtashami
- University of California Los Angeles, School of Dentistry, Los Angeles, CA, USA.
| | - Reza Akhavan-Sigari
- Department of Neurosurgery, University Medical Center Tuebingen, Germany; Department of Health Care Management and Clinical Research, Collegium Humanum Warsaw Management University Warsaw, Poland
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Dai H, Li L, Yang Y, Chen H, Dong X, Mao Y, Gao Y. Screening microRNAs as potential prognostic biomarkers for lung adenocarcinoma. Ann Med 2023; 55:2241013. [PMID: 37930873 PMCID: PMC10629414 DOI: 10.1080/07853890.2023.2241013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 07/21/2023] [Indexed: 11/08/2023] Open
Abstract
OBJECTIVE To screen and identify microRNAs (miRNAs) associated with the prognosis of lung adenocarcinoma (LUAD) using clinical samples and construct a prediction model for the prognosis of LUAD. METHODS 160 patient samples were used to screen and identify miRNAs associated with the prognosis of LUAD. Differentially expressed miRNAs were analyzed using gene chip technology. The selected miRNAs were validated using samples from the validation sample group. Cox proportional hazards regression was used to construct the model and Kaplan-Meier was used to plot survival curves. Model power was assessed by testing the prognosis of the constructed model using real-time polymerase chain reaction (RT-PCR) data. RESULTS The data showed that miR-1260b, miR-21-3p and miR-92a-3p were highly expressed in the early recurrence and metastasis group, while miR-2467-3p, miR-4659a-3p, miR-4514, miR-1471 and miR-3621 were lowly expressed. It was further confirmed that miR-21-3p was significantly highly expressed in the early recurrence and metastasis group (p = 0.02). Receiver operating characteristic (ROC) curve results showed cut-off point value of 0.0172, sensitivity of 88.2% and specificity of 100%. The predictive results of the constructed model were in good agreement with the actual prognosis of patients by using the validation sample test (Kappa = 0.426, p < 0.001), with a model sensitivity of 74.4%, a specificity of 68.3%, and an accuracy of 71.3%. CONCLUSION miRNAs associated with the prognosis of patients with stage I LUAD were screened and validated, and a risk model for predicting the prognosis of patients was constructed. This model has good consistency with the actual prognosis of patients.
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Affiliation(s)
- Hongshuang Dai
- State Key Laboratory of Molecular Oncology, Department of Etiology and Carcinogenesis, National Cancer Center; National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lin Li
- Department of Pathology, National Cancer Center;National Clinical Research Center for Cancer, Chinese Academy of Medical Sciences and Peking Union Medical College Cancer Hospital, Beijing, China
| | - Yikun Yang
- Department of Thoracic Surgical Oncology, National Cancer Center; National Clinical Research Center for Cancer, Chinese Academy of Medical Sciences and Peking Union Medical College Cancer Hospital, Beijing, China
| | - Huang Chen
- Department of Pathology, China-Japan Friendship Hospital, Beijing, China
| | - Xin Dong
- Department of Clinical Laboratory, National Cancer Center; National Clinical Research Center for Cancer, Chinese Academy of Medical Sciences and Peking Union Medical College Cancer Hospital, Beijing, China
| | - Yousheng Mao
- Department of Thoracic Surgical Oncology, National Cancer Center; National Clinical Research Center for Cancer, Chinese Academy of Medical Sciences and Peking Union Medical College Cancer Hospital, Beijing, China
| | - Yanning Gao
- State Key Laboratory of Molecular Oncology, Department of Etiology and Carcinogenesis, National Cancer Center; National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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5
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Ye Q, Raese R, Luo D, Cao S, Wan YW, Qian Y, Guo NL. MicroRNA, mRNA, and Proteomics Biomarkers and Therapeutic Targets for Improving Lung Cancer Treatment Outcomes. Cancers (Basel) 2023; 15:cancers15082294. [PMID: 37190222 DOI: 10.3390/cancers15082294] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 03/31/2023] [Accepted: 04/04/2023] [Indexed: 05/17/2023] Open
Abstract
The majority of lung cancer patients are diagnosed with metastatic disease. This study identified a set of 73 microRNAs (miRNAs) that classified lung cancer tumors from normal lung tissues with an overall accuracy of 96.3% in the training patient cohort (n = 109) and 91.7% in unsupervised classification and 92.3% in supervised classification in the validation set (n = 375). Based on association with patient survival (n = 1016), 10 miRNAs were identified as potential tumor suppressors (hsa-miR-144, hsa-miR-195, hsa-miR-223, hsa-miR-30a, hsa-miR-30b, hsa-miR-30d, hsa-miR-335, hsa-miR-363, hsa-miR-451, and hsa-miR-99a), and 4 were identified as potential oncogenes (hsa-miR-21, hsa-miR-31, hsa-miR-411, and hsa-miR-494) in lung cancer. Experimentally confirmed target genes were identified for the 73 diagnostic miRNAs, from which proliferation genes were selected from CRISPR-Cas9/RNA interference (RNAi) screening assays. Pansensitive and panresistant genes to 21 NCCN-recommended drugs with concordant mRNA and protein expression were identified. DGKE and WDR47 were found with significant associations with responses to both systemic therapies and radiotherapy in lung cancer. Based on our identified miRNA-regulated molecular machinery, an inhibitor of PDK1/Akt BX-912, an anthracycline antibiotic daunorubicin, and a multi-targeted protein kinase inhibitor midostaurin were discovered as potential repositioning drugs for treating lung cancer. These findings have implications for improving lung cancer diagnosis, optimizing treatment selection, and discovering new drug options for better patient outcomes.
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Affiliation(s)
- Qing Ye
- West Virginia University Cancer Institute, West Virginia University, Morgantown, WV 26506, USA
| | - Rebecca Raese
- West Virginia University Cancer Institute, West Virginia University, Morgantown, WV 26506, USA
| | - Dajie Luo
- West Virginia University Cancer Institute, West Virginia University, Morgantown, WV 26506, USA
| | - Shu Cao
- West Virginia University Cancer Institute, West Virginia University, Morgantown, WV 26506, USA
| | - Ying-Wooi Wan
- West Virginia University Cancer Institute, West Virginia University, Morgantown, WV 26506, USA
| | - Yong Qian
- Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV 26505, USA
| | - Nancy Lan Guo
- West Virginia University Cancer Institute, West Virginia University, Morgantown, WV 26506, USA
- Department of Occupational and Environmental Health Sciences, School of Public Health, West Virginia University, Morgantown, WV 26506, USA
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Pourmadadi M, Mahdi Eshaghi M, Ostovar S, Mohammadi Z, K. Sharma R, Paiva-Santos AC, Rahmani E, Rahdar A, Pandey S. Innovative nanomaterials for cancer diagnosis, imaging, and therapy: Drug deliveryapplications. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
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7
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Application of miRNA Biomarkers in Predicting Overall Survival Outcomes for Lung Adenocarcinoma. BIOMED RESEARCH INTERNATIONAL 2022; 2022:5249576. [PMID: 36147635 PMCID: PMC9485713 DOI: 10.1155/2022/5249576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/25/2022] [Accepted: 09/01/2022] [Indexed: 11/30/2022]
Abstract
Background With the development of research, the importance of microRNAs (miRNAs) in the occurrence, metastasis, and prognosis of lung adenocarcinoma (LUAD) has attracted extensive attention. This study is aimed at predicting overall survival (OS) results through bioinformatics to identify novel miRNA biomarkers and hub genes. Materials and Methods The data of LUAD-related miRNA and mRNA samples was downloaded from The Cancer Genome Atlas (TCGA) database. Upon screening and pretreatment of initial data, TCGA data were analyzed using R platform and a series of analytical tools to identify biomarkers with high specificity and sensitivity. Results 7 miRNAs and 13 hub genes that had strong relation to the overall surviving status were identified in patients with LUAD. The expression of seven miRNAs (hsa-miR-19a-3p, hsa-miR-126-5p, hsa-miR-556-3p, hsa-miR-671-5p, hsa-miR-937-3p, hsa-miR-4664-3p, and hsa-miR-4746-5p) could apparently improve the OS rate of patient with LUAD. The 13 hub genes, namely, CCT6A, CDK5R1, CEP55, DNAJB4, EGLN3, HDGF, HOXC8, LIMD1, MKI67, PCP4L1, PPIL1, SCAI, and STK32A, showed a correlation with the OS status. Conclusion 7 miRNAs were identified as novel biomarkers for the prognosis of patients with LUAD. This study offered a deeper comprehension of LUAD treatment and prognosis from the molecular level and helped enhance the understanding of the pathogenesis and potential molecular events of LUAD.
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8
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Matulić M, Gršković P, Petrović A, Begić V, Harabajsa S, Korać P. miRNA in Molecular Diagnostics. Bioengineering (Basel) 2022; 9:bioengineering9090459. [PMID: 36135005 PMCID: PMC9495386 DOI: 10.3390/bioengineering9090459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/05/2022] [Accepted: 09/07/2022] [Indexed: 11/17/2022] Open
Abstract
MicroRNAs are a class of small non-coding RNA molecules that regulate gene expression on post-transcriptional level. Their biogenesis consists of a complex series of sequential processes, and they regulate expression of many genes involved in all cellular processes. Their function is essential for maintaining the homeostasis of a single cell; therefore, their aberrant expression contributes to development and progression of many diseases, especially malignant tumors and viral infections. Moreover, they can be associated with certain states of a specific disease, obtained in the least invasive manner for patients and analyzed with basic molecular methods used in clinical laboratories. Because of this, they have a promising potential to become very useful biomarkers and potential tools in personalized medicine approaches. In this review, miRNAs biogenesis, significance in cancer and infectious diseases, and current available test and methods for their detection are summarized.
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Affiliation(s)
- Maja Matulić
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia
| | - Paula Gršković
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia
| | - Andreja Petrović
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia
- Institute of Clinical Pathology and Cytology, Merkur University Hospital, 10000 Zagreb, Croatia
| | - Valerija Begić
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia
- Primary School “Sesvetski Kraljevec”, 10361 Sesvetski Kraljevec, Croatia
| | - Suzana Harabajsa
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia
- Department of Pathology and Cytology, Division of Pulmonary Cytology Jordanovac, University Hospital Centre Zagreb, 10000 Zagreb, Croatia
| | - Petra Korać
- Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia
- Correspondence: ; Tel.: +385-1-4606-278
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Ma Q, Zhang J, Huang J, Wang X, Xiao F, Xing H, Wang Y, Guo Y, Shi B, Song Z, Liu D, Si C, Horinouchi H, Liang C. Decreased miR-940 expression can predict a negative prognosis in early-stage nonsmoking female lung adenocarcinoma. Transl Lung Cancer Res 2022; 10:4293-4302. [PMID: 35004257 PMCID: PMC8674601 DOI: 10.21037/tlcr-21-906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 11/25/2021] [Indexed: 12/11/2022]
Abstract
Background Early-stage female lung adenocarcinoma is the most common type of lung cancer encountered in thoracic surgery departments. Tumor-node-metastasis (TNM) staging does not adequately explain a significant stratification phenomenon in the prognosis of patients with stage I lung adenocarcinoma. We aimed to investigate the contributory role of miR-940 in the prognosis prediction. Methods We analyzed the microRNA (miRNA) expression level in tumor tissues (high-risk group vs. low-risk group) from 12 non-smoking female patients with stage I lung adenocarcinoma using miRNA array. Bioinformatic analyses of miR-940 were also carried out based on the public database. Then, quantitative reverse-transcription polymerase chain reaction (qRT-PCR) tests of the tissue samples were further validated. And miR-940's function was analyzed and potential target genes were predicted. Results In all, 24 miRNAs were found to be significantly different between the high-risk group and low-risk group. The expression level of miR-940 was lower in tumor tissue (P=0.011), and the survival rate in the high miR-940 group was higher [hazard ratio (HR) =0.688; P=0.011]. Gene Ontology (GO) analysis showed that the assembly functions of targets regulated by miR-940 were mainly enriched in regulation of myeloid cell differentiation, G1/S transition of mitotic cell cycle, and cellular response to environmental stimulus. miR-940 is involved in transforming growth factor-beta (TGF-beta) signaling pathway; TNF signaling pathway; and estrogen signaling pathway. The number of lung adenocarcinoma cells (A549) was significantly decreased after miR-940 was transfected. Ten epithelial-to-mesenchymal-transition (EMT)-associated genes (MMP9, ZEB1, CDH1, KRT8, KRT18 KET19, TWIST1, VIM, SNAI1, and SNAI2) were found to be significantly related to miR-940. Conclusions The present study showed that miR-940 might be a protective factor for positive prognosis in early stage nonsmoking female lung adenocarcinoma, with transforming growth factor-beta (TGF-beta) pathway, TNF pathway, and matrix metalloprotein (MMP9) being potential targets.
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Affiliation(s)
- Qianli Ma
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Jin Zhang
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Jingjing Huang
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Xiaowei Wang
- Department of Pathology, China-Japan Friendship Hospital, Beijing, China
| | - Fei Xiao
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Huajie Xing
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Ye Wang
- Department of Pathology, China-Japan Friendship Hospital, Beijing, China
| | - Yongqing Guo
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Bin Shi
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Zhiyi Song
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Deruo Liu
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Chaozeng Si
- Department of Information Management, China-Japan Friendship Hospital, Beijing, China
| | - Hidehito Horinouchi
- Department of Thoracic Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Chaoyang Liang
- Department of Thoracic Surgery, China-Japan Friendship Hospital, Beijing, China
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Mao J, Zhang Z, Chen Y, Wu T, Fersht V, Jin Y, Meng J, Zhang M. Sea cucumber peptides inhibit the malignancy of NSCLC by regulating miR-378a-5p targeted TUSC2. Food Funct 2021; 12:12362-12371. [PMID: 34788772 DOI: 10.1039/d1fo02267a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Lung cancer is a common cancer with high mortality worldwide, and non-small cell lung cancer (NSCLC) accounts for the majority. The clinical treatment effect of NSCLC is not ideal. The aim of this study was to investigate the inhibitory effect of sea cucumber peptide (SCP) on NSCLC and its mechanism. The results showed that SCP could effectively inhibit the proliferation, migration and invasion of A549 cells. In addition, SCP can also inhibit the formation of pleural effusion and tumor growth in lung cancer mice, reduce liver and kidney injury, increase the levels of IL-2 and IL-12, decrease the levels of IL-6 and TNF-α, and prolong the survival time of mice. The microRNA sequencing and immunohistochemistry of mouse tumors showed that the tumor suppressor gene TUSC2 targeted by miR-378a-5p was involved in the inhibition of tumor growth by SCP. This study provides an experimental basis for the further development of SCP as an anti-tumor nutritional supplement, and provides a new idea for exploring the molecular mechanism of food derived active peptides in anti-tumor applications.
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Affiliation(s)
- Jing Mao
- State Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, College of food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Zhuchi Zhang
- State Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, College of food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Yongde Chen
- Bestlife Biological Technology Co., Ltd, Hebei Province, China
| | - Tao Wu
- State Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, College of food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Viktor Fersht
- Center for Applied Medicine and Food Safety "Biomed", Lomonosov Moscow State University, Moscow, Russia
| | - Yan Jin
- State Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, College of food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Jing Meng
- State Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, College of food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China.
- Tianjin International Joint Academy of Biomedicine, Tianjin, China
| | - Min Zhang
- State Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, College of food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China.
- China-Russia Agricultural Products Processing Joint Laboratory, Tianjin Agricultural University, Tianjin 300384, PR China
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11
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Šutić M, Vukić A, Baranašić J, Försti A, Džubur F, Samaržija M, Jakopović M, Brčić L, Knežević J. Diagnostic, Predictive, and Prognostic Biomarkers in Non-Small Cell Lung Cancer (NSCLC) Management. J Pers Med 2021; 11:1102. [PMID: 34834454 PMCID: PMC8624402 DOI: 10.3390/jpm11111102] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/21/2021] [Accepted: 10/25/2021] [Indexed: 12/25/2022] Open
Abstract
Lung cancer is the leading cause of cancer-related deaths worldwide. Despite growing efforts for its early detection by screening populations at risk, the majority of lung cancer patients are still diagnosed in an advanced stage. The management of lung cancer has dramatically improved in the last decade and is no longer based on the "one-fits-all" paradigm or the general histological classification of non-small cell versus small cell lung cancer. Emerging options of targeted therapies and immunotherapies have shifted the management of lung cancer to a more personalized treatment approach, significantly influencing the clinical course and outcome of the disease. Molecular biomarkers have emerged as valuable tools in the prognosis and prediction of therapy response. In this review, we discuss the relevant biomarkers used in the clinical management of lung tumors, from diagnosis to prognosis. We also discuss promising new biomarkers, focusing on non-small cell lung cancer as the most abundant type of lung cancer.
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Affiliation(s)
- Maja Šutić
- Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia; (M.Š.); (A.V.); (J.B.)
| | - Ana Vukić
- Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia; (M.Š.); (A.V.); (J.B.)
| | - Jurica Baranašić
- Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia; (M.Š.); (A.V.); (J.B.)
| | - Asta Försti
- Hopp Children’s Cancer Center (KiTZ), 69120 Heidelberg, Germany;
- Division of Pediatric Neurooncology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Feđa Džubur
- German Cancer Consortium (DKTK), 69120 Heidelberg, Germany; (F.D.); (M.S.); (M.J.)
- Clinical Department for Respiratory Diseases Jordanovac, University Hospital Centre Zagreb, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Miroslav Samaržija
- German Cancer Consortium (DKTK), 69120 Heidelberg, Germany; (F.D.); (M.S.); (M.J.)
- Clinical Department for Respiratory Diseases Jordanovac, University Hospital Centre Zagreb, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Marko Jakopović
- German Cancer Consortium (DKTK), 69120 Heidelberg, Germany; (F.D.); (M.S.); (M.J.)
- Clinical Department for Respiratory Diseases Jordanovac, University Hospital Centre Zagreb, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Luka Brčić
- Diagnostic and Research Institute of Pathology, Medical University of Graz, 8010 Graz, Austria;
| | - Jelena Knežević
- Division of Molecular Medicine, Ruđer Bošković Institute, 10000 Zagreb, Croatia; (M.Š.); (A.V.); (J.B.)
- Faculties for Dental Medicine and Health, University of Osijek, 31000 Osijek, Croatia
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12
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Naeli P, Yousefi F, Ghasemi Y, Savardashtaki A, Mirzaei H. The Role of MicroRNAs in Lung Cancer: Implications for Diagnosis and Therapy. Curr Mol Med 2021; 20:90-101. [PMID: 31573883 DOI: 10.2174/1566524019666191001113511] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 09/17/2019] [Accepted: 09/19/2019] [Indexed: 12/15/2022]
Abstract
Lung cancer is the first cause of cancer death in the world due to its high prevalence, aggressiveness, late diagnosis, lack of effective treatment and poor prognosis. It also shows high rate of recurrence, metastasis and drug resistance. All these problems highlight the urgent needs for developing new strategies using noninvasive biomarkers for early detection, metastasis and recurrence of disease. MicroRNAs (miRNAs) are a class of small noncoding RNAs that regulate gene expression post-transcriptionally. These molecules found to be abnormally expressed in increasing number of human disease conditions including cancer. miRNAs could be detected in body fluids such as blood, serum, urine and sputum, which leads us towards the idea of using them as non-invasive biomarker for cancer detection and monitoring cancer treatment and recurrence. miRNAs are found to be deregulated in lung cancer initiation and progression and could regulate lung cancer cell proliferation and invasion. In this review, we summarized recent progress and discoveries in microRNAs regulatory role in lung cancer initiation and progression. In addition, the role of microRNAs in EGFR signaling pathway regulation is discussed briefly.
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Affiliation(s)
- Parisa Naeli
- Department of Biological Sciences, Faculty of Genetics, Tarbiat Modares University, Tehran, Iran
| | - Fatemeh Yousefi
- Department of Biological Sciences, Faculty of Genetics, Tarbiat Modares University, Tehran, Iran
| | - Younes Ghasemi
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences Shiraz, Iran.,Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amir Savardashtaki
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences Shiraz, Iran.,Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
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13
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El Founini Y, Chaoui I, Dehbi H, El Mzibri M, Abounader R, Guessous F. MicroRNAs: Key Regulators in Lung Cancer. Microrna 2021; 10:109-122. [PMID: 34047262 DOI: 10.2174/2211536610666210527102522] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 04/11/2021] [Accepted: 04/14/2021] [Indexed: 12/24/2022]
Abstract
Noncoding RNAs have emerged as key regulators of the genome upon gene expression profiling and genome-wide sequencing. Among these noncoding RNAs, microRNAs are short noncoding RNAs that regulate a plethora of functions, biological processes and human diseases by targeting the messenger RNA stability through 3'UTR binding, leading to either mRNA cleavage or translation repression, depending on microRNA-mRNA complementarity degree. Additionally, strong evidence has suggested that dysregulation of miRNAs contribute to the etiology and progression of human cancers, such as lung cancer, the most common and deadliest cancer worldwide. Indeed, by acting as oncogenes or tumor suppressors, microRNAs control all aspects of lung cancer malignancy, including cell proliferation, survival, migration, invasion, angiogenesis, cancer stem cells, immune-surveillance escape, and therapy resistance; and their expressions are often associated with clinical parameters. Moreover, several deregulated microRNAs in lung cancer are carried by exosomes, microvesicles and secreted in body fluids, mainly the circulation where they conserve their stable forms. Subsequently, seminal efforts have been focused on extracellular microRNAs levels as noninvasive diagnostic and prognostic biomarkers in lung cancer. In this review, focusing on recent literature, we summarize the deregulation, mechanisms of action, functions and highlight clinical applications of miRNAs for better management and design of future lung cancer targeted therapies.
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Affiliation(s)
- Younes El Founini
- Unit of Biology and Medical Research, National Center of Energy, Sciences and Nuclear Techniques, Rabat, Morocco.,Laboratory of Genetics and Molecular Pathology, Medical School, University Hassan II, Casablanca, Morocco
| | - Imane Chaoui
- Unit of Biology and Medical Research, National Center of Energy, Sciences and Nuclear Techniques, Rabat, Morocco
| | - Hind Dehbi
- Laboratory of Genetics and Molecular Pathology, Medical School, University Hassan II, Casablanca, Morocco
| | - Mohammed El Mzibri
- Unit of Biology and Medical Research, National Center of Energy, Sciences and Nuclear Techniques, Rabat, Morocco
| | - Roger Abounader
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, Virginia, United States
| | - Fadila Guessous
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, Virginia, United States.,Department of Biological Sciences, Faculty of Medicine, Mohammed VI University of Health Sciences, Casablanca, Morocco
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14
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Huang G, Zhang J, Gong L, Liu D, Wang X, Chen Y, Guo S. Specific Lung Squamous Cell Carcinoma Prognosis-Subtype Distinctions Based on DNA Methylation Patterns. Med Sci Monit 2021; 27:e929524. [PMID: 33661858 PMCID: PMC7942209 DOI: 10.12659/msm.929524] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background Lung squamous cell carcinoma (LUSC) is one of the major types of non-small-cell lung cancer. Epigenetic alterations, such as DNA methylation, have been recognized to be closely associated with the tumorigenesis and progression. Material/Methods In this study, we investigated the prognosis subgroups and assessed their correlation with clinical characteristics in LUSC using a methylation array acquired from The Cancer Genome Atlas (TCGA) database. Results A total of 196 DNA methylation sites exhibited a significant association with patient prognosis, and patients were further stratified into 7 prognosis subgroups based upon the consensus clustering. The patients in every subgroup were different in terms of prognosis and TNM stage. In addition, we found these 196 significant methylation sites corresponded to 258 genes. The function enrichment analysis revealed that these 258 genes enriched in biological pathways were closely related to cancers, such as DNA methylation and demethylation, cell cycle DNA replication, regulation of signal transduction by p53 class mediator, and genetic imprinting. Subsequently, we determined the levels of methylation sites in 7 subgroups, and found 24 intra-subgroup-specific methylation sites. Meanwhile, we selected 3 subgroups-specific methylation sites to construct the prognosis model for LUSC patients using multivariate Cox proportional risk regression model analysis. This model can effectively predict the prognosis of LUSC patients. Conclusions Our study identified a new classification of LUSC into 7 prognosis subgroups on the basis of DNA methylation data in TCGA, which demonstrated that molecular subtypes are independent factor for prognosis in LUSC. This may provide a more detailed explanation for LUSC heterogeneity. Additionally, this classification will contribute to discovery of new biomarkers of LUSC and provide more accurate subdivision of LUSC. Furthermore, these specific DNA methylation sites and corresponding genes can serve as biomarkers for early diagnosis, accurate therapy, and prognosis prediction.
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Affiliation(s)
- Guichuan Huang
- Department of Pulmonary and Critical Care Medicine, The First People's hospital of Zunyi (The Third Affiliated Hospital of Zunyi Medical University), Zunyi, Guizhou, China (mainland)
| | - Jing Zhang
- Department of Pulmonary and Critical Care Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China (mainland)
| | - Ling Gong
- Department of Pulmonary and Critical Care Medicine, The First People's hospital of Zunyi (The Third Affiliated Hospital of Zunyi Medical University), Zunyi, Guizhou, China (mainland)
| | - Daishun Liu
- Department of Pulmonary and Critical Care Medicine, The First People's hospital of Zunyi (The Third Affiliated Hospital of Zunyi Medical University), Zunyi, Guizhou, China (mainland)
| | - Xin Wang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China (mainland)
| | - Yi Chen
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China (mainland)
| | - Shuliang Guo
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China (mainland)
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15
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Pérez-Sánchez C, Barbarroja N, Pantaleão LC, López-Sánchez LM, Ozanne SE, Jurado-Gámez B, Aranda E, Lopez-Pedrera C, Rodríguez-Ariza A. Clinical Utility of microRNAs in Exhaled Breath Condensate as Biomarkers for Lung Cancer. J Pers Med 2021; 11:111. [PMID: 33572343 PMCID: PMC7916163 DOI: 10.3390/jpm11020111] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/25/2021] [Accepted: 02/06/2021] [Indexed: 12/19/2022] Open
Abstract
This study represents a novel proof of concept of the clinical utility of miRNAs from exhaled breath condensate (EBC) as biomarkers of lung cancer (LC). Genome-wide miRNA profiling and machine learning analysis were performed on EBC from 21 healthy volunteers and 21 LC patients. The levels of 12 miRNAs were significantly altered in EBC from LC patients where a specific signature of miR-4507, miR-6777-5p and miR-451a distinguished these patients with high accuracy. Besides, a distinctive miRNA profile between LC adenocarcinoma and squamous cell carcinoma was observed, where a combined panel of miR-4529-3p, miR-8075 and miR-7704 enabling discrimination between them. EBC levels of miR-6777-5p, 6780a-5p and miR-877-5p predicted clinical outcome at 500 days. Two additional miRNA signatures were also associated with other clinical features such as stage and invasion status. Dysregulated EBC miRNAs showed potential target genes related to LC pathogenesis, including CDKN2B, PTEN, TP53, BCL2, KRAS and EGFR. We conclude that EBC miRNAs might allow the identification, stratification and monitorization of LC, which could lead to the development of precision medicine in this and other respiratory diseases.
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Affiliation(s)
- Carlos Pérez-Sánchez
- Department of Medicine, School of Clinical Medicine, Cambridge Biomedical Campus, University of Cambridge, Cambridge CB2 0AW, UK
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, 14004 Córdoba, Spain; (L.M.L.-S.); (B.J.-G.); (E.A.); (C.L.-P.); (A.R.-A.)
| | - Nuria Barbarroja
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, 14004 Córdoba, Spain; (L.M.L.-S.); (B.J.-G.); (E.A.); (C.L.-P.); (A.R.-A.)
| | - Lucas C. Pantaleão
- Metabolic Research Laboratories and MRC Metabolic Diseases Unit, Welcome Trust-MRC Institute of Metabolic Science, Addenbrooke’s Hospital, University of Cambridge, Cambridge CB2 0QQ, UK; (L.C.P.); (S.E.O.)
| | - Laura M. López-Sánchez
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, 14004 Córdoba, Spain; (L.M.L.-S.); (B.J.-G.); (E.A.); (C.L.-P.); (A.R.-A.)
| | - Susan E. Ozanne
- Metabolic Research Laboratories and MRC Metabolic Diseases Unit, Welcome Trust-MRC Institute of Metabolic Science, Addenbrooke’s Hospital, University of Cambridge, Cambridge CB2 0QQ, UK; (L.C.P.); (S.E.O.)
| | - Bernabé Jurado-Gámez
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, 14004 Córdoba, Spain; (L.M.L.-S.); (B.J.-G.); (E.A.); (C.L.-P.); (A.R.-A.)
| | - Enrique Aranda
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, 14004 Córdoba, Spain; (L.M.L.-S.); (B.J.-G.); (E.A.); (C.L.-P.); (A.R.-A.)
- Centro de Investigación Biomédica en Red en Cáncer (CIBERONC), 28029 Madrid, Spain
| | - Chary Lopez-Pedrera
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, 14004 Córdoba, Spain; (L.M.L.-S.); (B.J.-G.); (E.A.); (C.L.-P.); (A.R.-A.)
| | - Antonio Rodríguez-Ariza
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, 14004 Córdoba, Spain; (L.M.L.-S.); (B.J.-G.); (E.A.); (C.L.-P.); (A.R.-A.)
- Centro de Investigación Biomédica en Red en Cáncer (CIBERONC), 28029 Madrid, Spain
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王 郁, 周 娜, 刘 栋, 张 晓. [Current Status and Progress of Early Lung Cancer Screening under the
Normal State of COVID-19 Epidemic Prevention and Control]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2021; 24:31-35. [PMID: 33478188 PMCID: PMC7849038 DOI: 10.3779/j.issn.1009-3419.2020.101.47] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 10/06/2020] [Accepted: 10/12/2020] [Indexed: 11/05/2022]
Abstract
Lung cancer is the malignant tumor with the highest incidence in China. Early detection and identification of symptomatic lung cancer patients and timely screen out asymptomatic patients from high-risk groups require multiple cooperation. At present, although combined imaging, serology, genomics, proteomics and other methods have been combined to screen for suspected lung cancer, there are still problems such as missed diagnosis and misdiagnosis. Meanwhile, the spread of the corona virus disease 2019 (COVID-19) epidemic has brought new challenges to early lung cancer screening. Under the normalization of epidemic prevention and control, the work of early lung cancer screening should be changed accordingly: improve the population's awareness of cancer prevention and control, strengthen the management of medical procedures, improve the efficiency of tumor detection, optimize detection technology, and utilize internet and big data platforms rationally. We should establish an ideal model, combining multiple screening methods, which is streamlined and efficient for early lung cancer screening under normal epidemic prevention and control.
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Affiliation(s)
- 郁杨 王
- 266000 青岛,青岛大学医学部Department of Medicine, Qingdao University, Qingdao 266000, China
| | - 娜 周
- 266000 青岛,青岛大学附属医院The Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - 栋 刘
- 266000 青岛,青岛大学附属医院The Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - 晓春 张
- 266000 青岛,青岛大学附属医院The Affiliated Hospital of Qingdao University, Qingdao 266000, China
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17
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Plausible Role of Estrogens in Pathogenesis, Progression and Therapy of Lung Cancer. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18020648. [PMID: 33466597 PMCID: PMC7828659 DOI: 10.3390/ijerph18020648] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/05/2021] [Accepted: 01/08/2021] [Indexed: 02/06/2023]
Abstract
Malignant neoplasms are among the most common diseases and are responsible for the majority of deaths in the developed world. In contrast to men, available data show a clear upward trend in the incidence of lung cancer in women, making it almost as prevalent as breast cancer. Women might be more susceptible to the carcinogenic effect of tobacco smoke than men. Furthermore, available data indicate a much more frequent mutation of the tumor suppressor gene-p53 in non-small cell lung cancer (NSCLC) female patients compared to males. Another important factor, however, might lie in the female sex hormones, whose mitogenic or carcinogenic effect is well known. Epidemiologic data show a correlation between hormone replacement therapy (HRT) or oral contraceptives (OCs), and increased mortality rates due to the increased incidence of malignant tumors, including lung cancer. Interestingly, two types of estrogen receptors have been detected in lung cancer cells: ERα and ERβ. The presence of ERα has been detected in tissues and non-small-cell lung carcinoma (NSCLC) cell lines. In contrast, overexpression of ERβ is a prognostic marker in NSCLC. Herein, we summarize the current knowledge on the role of estrogens in the etiopathogenesis of lung cancer, as well as biological, hormonal and genetic sex-related differences in this neoplasm.
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Zheng H, Li C, Li Z, Zhu K, Bao H, Xiong J, Liang P. HOXB9 enhances the ability of lung cancer cells to penetrate the blood-brain barrier. Aging (Albany NY) 2020; 13:4999-5019. [PMID: 33411683 PMCID: PMC7950248 DOI: 10.18632/aging.202324] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 09/13/2020] [Indexed: 12/21/2022]
Abstract
Even after multimodal therapy, the prognosis is dismal for patients with brain metastases from non-small cell lung cancer (NSCLC). Although the blood-brain barrier (BBB) limits tumor cell penetration into the brain parenchyma, some nevertheless colonize brain tissue through mechanisms that are not fully clear. Here we show that homeobox B9 (HOXB9), which is commonly overexpressed in NSCLC, promotes epithelial-to-mesenchymal transition (EMT) and tumor migration and invasion. Animal experiments showed that HOXB9 expression correlates positively with the brain metastatic potential of human NSCLC cells, while brain metastatic cells derived through in vivo selection showed greater HOXB9 expression than their cells of origin. Comparable results were obtained after immunohistochemical analysis of clinical primary NSCLC and matched brain metastasis samples obtained after surgery. Using an in vitro BBB model, knockdown and overexpression experiments showed that HOXB9-dependent expression of MMP9 in NSCLC cells leads to reduced expression of junctional proteins in cultured human vascular endothelial cells and enhanced transmigration of tumor cells. These data indicate that HOXB9 enables NSCLC cells to break away from the primary tumor by inducing EMT, and promotes brain metastasis by driving MMP9 production and degradation of intercellular adhesion proteins in endothelial cells comprising the BBB.
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Affiliation(s)
- HongShan Zheng
- Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin 150001, Heilongjiang, P.R. China
| | - ChenLong Li
- Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin 150001, Heilongjiang, P.R. China
| | - ZhenZhe Li
- Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin 150001, Heilongjiang, P.R. China
| | - KaiBin Zhu
- Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin 150001, Heilongjiang, P.R. China
| | - HongBo Bao
- Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin 150001, Heilongjiang, P.R. China
| | - JinSheng Xiong
- Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin 150001, Heilongjiang, P.R. China
| | - Peng Liang
- Department of Neurosurgery, Harbin Medical University Cancer Hospital, Harbin 150001, Heilongjiang, P.R. China
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19
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Dong Y, Li S, Sun X, Wang Y, Lu T, Wo Y, Leng X, Kong D, Jiao W. Desmoglein 3 and Keratin 14 for Distinguishing Between Lung Adenocarcinoma and Lung Squamous Cell Carcinoma. Onco Targets Ther 2020; 13:11111-11124. [PMID: 33149622 PMCID: PMC7605657 DOI: 10.2147/ott.s270398] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 09/08/2020] [Indexed: 12/29/2022] Open
Abstract
Background Lung adenocarcinoma (LUAD) and lung squamous cell carcinoma (LUSC) are the leading major histological phenotypes of all non-small cell lung cancer (NSCLC). In this study, the candidate genes and the potential tumorigenesis distinguishing between LUAD and LUSC were analyzed. Methods The present study investigated two microarray datasets (GSE28571 and GSE10245) downloaded from the Gene Expression Omnibus (GEO) database. A protein–protein interaction (PPI) network was applied to screen out the candidate genes. In addition, differently expressed genes (DEGs) between lung adenocarcinoma and lung squamous cell carcinoma of the two datasets were functionally analyzed by Gene Ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment. R 4.0.2 was used to perform Kaplan–Meier analysis of DSG3 (desmoglein 3) and KRT14 (keratin 14) by analyzing the expression and clinical data from The Cancer Genome Atlas (TCGA) database. Results The results revealed that 47 DEGs of the two datasets were ascertained in our study. It was found that the DEGs were mainly involved in pathways related to p63 transcription factor network and validated transcriptional factor targeting TAp63, etc. Based on the analysis, we finally identified DSG3 and KRT14 as potential biomarkers for distinguishing between LUAD and LUSC. These results suggested that DSG3 and KRT14 could have the potential to play an important role in NSCLC patients, as diagnostic markers. At the same time, DSG3 or KRT14 indicated a worse prognosis in LUSC patients, which were associated with pathways relevant to the TRAIL signaling pathway and TNF receptor signaling pathway according to bioinformatic analysis. Conclusion The DSG3 and KRT14 have the potential to be used as diagnostic markers, which presented here may facilitate improvements in distinguishing between LUAD and LUSC in advanced NSCLC patients.
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Affiliation(s)
- Yanting Dong
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao 266003, People's Republic of China
| | - Shicheng Li
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao 266003, People's Republic of China
| | - Xiao Sun
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao 266003, People's Republic of China
| | - Yuanyong Wang
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao 266003, People's Republic of China
| | - Tong Lu
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao 266003, People's Republic of China
| | - Yang Wo
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao 266003, People's Republic of China
| | - Xiaoliang Leng
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao 266003, People's Republic of China
| | - Dezhi Kong
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao 266003, People's Republic of China
| | - Wenjie Jiao
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao 266003, People's Republic of China
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20
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Setti Boubaker N, Gurtner A, Trabelsi N, Manni I, Ayed H, Saadi A, Naimi Z, Ksontini M, Ayadi M, Blel A, Rammeh S, Chebil M, Piaggio G, Ouerhani S. Uncovering the expression patterns and the clinical significance of miR-182, miR-205, miR-27a and miR-369 in patients with urinary bladder cancer. Mol Biol Rep 2020; 47:8819-8830. [PMID: 33128684 DOI: 10.1007/s11033-020-05932-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 10/17/2020] [Indexed: 12/30/2022]
Abstract
BACKGROUND Given the high recurrence and progression rates and the absence of reliable markers for early detection and prognosis prediction of patients with urothelial bladder cancer (BCa), the exploration of new biomarkers with high specificity is imperative. Mainly, microRNAs (miRNAs), which are involved in the initiation and the progression of BCa. Herein, the expression patterns of miR-182, miR-205, miR-27a and miR-369 were evaluated in patients with urothelial BCa. METHODS AND RESULTS The expression levels of the miRNAs were investigated in 90 FFPE tissue samples (23 LG NMIBC, 44 HG NMIBC, 23 MIBC) and 10 non tumoral bladder tissues using TaqMan based RT-qPCR. Data analysis was performed using 2-ΔΔCT method. Correlation to clinical characteristics of the patients was performed using descriptive statistics and the receiver operating characteristic (ROC) curve was performed to evaluate the diagnostic value of all miRNAs. MiR-27a, miR-205 and miR-369 were down-regulated whereas miR-182 was up-regulated in patients compared to controls (p < 0.001). MiR-205 and miR-182 positively segregate between NMIBC and MIBC (p = 0.002 and p = 0.000 respectively) whereas the distribution of miR-27a's expression among these tumor groups was almost significant (p = 0.05) and that of miR-369's expression was irrelevant (p = 0.618). Interestingly, miR-182 was discriminative between LG NMIBC and HG NMIBC (p < 0.001) and Ta/T1 tumors (p = 0.000). Furthermore, high levels of miR-182 were potentially predictive of progression in NMIBC patients (p = 0.01). CONCLUSION Collectively, a selection of miRNAs was found to be aberrantly expressed in BCa suggesting a potential diagnostic value in BCa. In addition, the clinical value of miR-182 and miR-205 as potential prognosis biomarkers was highlighted. Indeed, our data provide additional insights into cancer biology. Further functional or target studies are mandatory to strengthen these findings.
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Affiliation(s)
- Nouha Setti Boubaker
- Laboratory of proteins engineering and bioactive molecules (LIP-MB), INSAT, University of Tunis Carthage, Tunis, Tunisia.
- UOSD SAFU, Department of Research, Diagnosis and Innovative Technologies, IRCCS-Regina Elena National Cancer Institute, Rome, Italy.
| | - Aymone Gurtner
- UOSD SAFU, Department of Research, Diagnosis and Innovative Technologies, IRCCS-Regina Elena National Cancer Institute, Rome, Italy
- Institute of Translational Pharmacology, National Research Council, Rome, Italy
| | - Nesrine Trabelsi
- Laboratory of proteins engineering and bioactive molecules (LIP-MB), INSAT, University of Tunis Carthage, Tunis, Tunisia
| | - Isabella Manni
- UOSD SAFU, Department of Research, Diagnosis and Innovative Technologies, IRCCS-Regina Elena National Cancer Institute, Rome, Italy
| | - Haroun Ayed
- Laboratory of proteins engineering and bioactive molecules (LIP-MB), INSAT, University of Tunis Carthage, Tunis, Tunisia
- Urology Department, Charles Nicolle Hospital, Faculty of Medicine, University of Tunis-El Manar, Tunis, Tunisia
| | - Ahmed Saadi
- Laboratory of proteins engineering and bioactive molecules (LIP-MB), INSAT, University of Tunis Carthage, Tunis, Tunisia
- Urology Department, Charles Nicolle Hospital, Faculty of Medicine, University of Tunis-El Manar, Tunis, Tunisia
| | - Zeineb Naimi
- Medical Oncology Department, Salah Azaiez Institute, Faculty of Medicine, University of Tunis-El Manar, Tunis, Tunisia
| | - Meriem Ksontini
- Pathology Department, Charles Nicolle Hospital, Faculty of Medicine, University of Tunis-El Manar, Tunis, Tunisia
| | - Mouna Ayadi
- Medical Oncology Department, Salah Azaiez Institute, Faculty of Medicine, University of Tunis-El Manar, Tunis, Tunisia
| | - Ahlem Blel
- Pathology Department, Charles Nicolle Hospital, Faculty of Medicine, University of Tunis-El Manar, Tunis, Tunisia
| | - Soumaya Rammeh
- Pathology Department, Charles Nicolle Hospital, Faculty of Medicine, University of Tunis-El Manar, Tunis, Tunisia
| | - Mohamed Chebil
- Urology Department, Charles Nicolle Hospital, Faculty of Medicine, University of Tunis-El Manar, Tunis, Tunisia
| | - Giulia Piaggio
- UOSD SAFU, Department of Research, Diagnosis and Innovative Technologies, IRCCS-Regina Elena National Cancer Institute, Rome, Italy.
| | - Slah Ouerhani
- Laboratory of proteins engineering and bioactive molecules (LIP-MB), INSAT, University of Tunis Carthage, Tunis, Tunisia
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21
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Souza CP, Cinegaglia NC, Felix TF, Evangelista AF, Oliveira RA, Hasimoto EN, Cataneo DC, Cataneo AJM, Scapulatempo Neto C, Viana CR, de Paula FE, Drigo SA, Carvalho RF, Marques MMC, Reis RM, Reis PP. Deregulated microRNAs Are Associated with Patient Survival and Predicted to Target Genes That Modulate Lung Cancer Signaling Pathways. Cancers (Basel) 2020; 12:E2711. [PMID: 32971741 PMCID: PMC7563870 DOI: 10.3390/cancers12092711] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/05/2020] [Accepted: 09/09/2020] [Indexed: 12/24/2022] Open
Abstract
(1) Background: Although the advances in diagnostic and treatment strategies, lung cancer remains the leading cause of cancer-related deaths, worldwide, with survival rates as low as 16% in developed countries. Low survival rates are mainly due to late diagnosis and the lack of effective treatment. Therefore, the identification of novel, clinically useful biomarkers is still needed for patients with advanced disease stage and poor survival. Micro(mi)RNAs are non-coding RNAs and potent regulators of gene expression with a possible role as diagnostic, prognostic and predictive biomarkers in cancer. (2) Methods: We applied global miRNA expression profiling analysis using TaqMan® arrays in paired tumor and normal lung tissues (n = 38) from treatment-naïve patients with lung adenocarcinoma (AD; n = 23) and lung squamous cell carcinoma (SCC; n = 15). miRNA target genes were validated using The Cancer Genome Atlas (TCGA) lung AD (n = 561) and lung SCC (n = 523) RNA-Seq datasets. (3) Results: We identified 33 significantly deregulated miRNAs (fold change, FC ≥ 2.0 and p < 0.05) in tumors relative to normal lung tissues, regardless of tumor histology. Enrichment analysis confirmed that genes targeted by the 33 miRNAs are aberrantly expressed in lung AD and SCC, and modulate known pathways in lung cancer. Additionally, high expression of miR-25-3p was significantly associated (p < 0.05) with poor patient survival, when considering both tumor histologies. (4) Conclusions: miR-25-3p may be a potential prognostic biomarker in non-small cell lung cancer. Genes targeted by miRNAs regulate EGFR and TGFβ signaling, among other known pathways relevant to lung tumorigenesis.
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Affiliation(s)
- Cristiano P. Souza
- Department of Surgery and Orthopedics, Faculty of Medicine, São Paulo State University, UNESP, Botucatu 18618-687, SP, Brazil; (C.P.S.); (E.N.H.); (D.C.C.); (A.J.M.C.); (S.A.D.)
- Experimental Research Unity (UNIPEX), São Paulo State University, UNESP, Botucatu 18618-687, SP, Brazil; (N.C.C.); (T.F.F.)
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, SP, Brazil; (A.F.E.); (C.S.N.); (C.R.V.); (F.E.d.P.); (M.M.C.M.); (R.M.R.)
| | - Naiara C. Cinegaglia
- Experimental Research Unity (UNIPEX), São Paulo State University, UNESP, Botucatu 18618-687, SP, Brazil; (N.C.C.); (T.F.F.)
| | - Tainara F. Felix
- Experimental Research Unity (UNIPEX), São Paulo State University, UNESP, Botucatu 18618-687, SP, Brazil; (N.C.C.); (T.F.F.)
| | - Adriane F. Evangelista
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, SP, Brazil; (A.F.E.); (C.S.N.); (C.R.V.); (F.E.d.P.); (M.M.C.M.); (R.M.R.)
| | - Rogério A. Oliveira
- Department of Biostatistics, Plant Biology, Parasitology, and Zoology, Institute of Biosciences, São Paulo State University UNESP, Botucatu 18618-689, SP, Brazil;
| | - Erica N. Hasimoto
- Department of Surgery and Orthopedics, Faculty of Medicine, São Paulo State University, UNESP, Botucatu 18618-687, SP, Brazil; (C.P.S.); (E.N.H.); (D.C.C.); (A.J.M.C.); (S.A.D.)
| | - Daniele C. Cataneo
- Department of Surgery and Orthopedics, Faculty of Medicine, São Paulo State University, UNESP, Botucatu 18618-687, SP, Brazil; (C.P.S.); (E.N.H.); (D.C.C.); (A.J.M.C.); (S.A.D.)
| | - Antônio J. M. Cataneo
- Department of Surgery and Orthopedics, Faculty of Medicine, São Paulo State University, UNESP, Botucatu 18618-687, SP, Brazil; (C.P.S.); (E.N.H.); (D.C.C.); (A.J.M.C.); (S.A.D.)
| | - Cristovam Scapulatempo Neto
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, SP, Brazil; (A.F.E.); (C.S.N.); (C.R.V.); (F.E.d.P.); (M.M.C.M.); (R.M.R.)
| | - Cristiano R. Viana
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, SP, Brazil; (A.F.E.); (C.S.N.); (C.R.V.); (F.E.d.P.); (M.M.C.M.); (R.M.R.)
| | - Flávia E. de Paula
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, SP, Brazil; (A.F.E.); (C.S.N.); (C.R.V.); (F.E.d.P.); (M.M.C.M.); (R.M.R.)
| | - Sandra A. Drigo
- Department of Surgery and Orthopedics, Faculty of Medicine, São Paulo State University, UNESP, Botucatu 18618-687, SP, Brazil; (C.P.S.); (E.N.H.); (D.C.C.); (A.J.M.C.); (S.A.D.)
- Experimental Research Unity (UNIPEX), São Paulo State University, UNESP, Botucatu 18618-687, SP, Brazil; (N.C.C.); (T.F.F.)
| | - Robson F. Carvalho
- Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, UNESP, Botucatu 18618-689, SP, Brazil;
| | - Márcia M. C. Marques
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, SP, Brazil; (A.F.E.); (C.S.N.); (C.R.V.); (F.E.d.P.); (M.M.C.M.); (R.M.R.)
- Barretos School of Health Sciences, Barretos 14785-002, SP, Brazil
| | - Rui M. Reis
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, SP, Brazil; (A.F.E.); (C.S.N.); (C.R.V.); (F.E.d.P.); (M.M.C.M.); (R.M.R.)
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal
- ICVS/3B’s-PT Government Associate Laboratory, 410-057 Braga/Guimarães, Portugal
| | - Patricia P. Reis
- Department of Surgery and Orthopedics, Faculty of Medicine, São Paulo State University, UNESP, Botucatu 18618-687, SP, Brazil; (C.P.S.); (E.N.H.); (D.C.C.); (A.J.M.C.); (S.A.D.)
- Experimental Research Unity (UNIPEX), São Paulo State University, UNESP, Botucatu 18618-687, SP, Brazil; (N.C.C.); (T.F.F.)
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22
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An Algorithmic Immunohistochemical Approach to Define Tumor Type and Assign Site of Origin. Adv Anat Pathol 2020; 27:114-163. [PMID: 32205473 DOI: 10.1097/pap.0000000000000256] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Immunohistochemistry represents an indispensable complement to an epidemiology and morphology-driven approach to tumor diagnosis and site of origin assignment. This review reflects the state of my current practice, based on 15-years' experience in Pathology and a deep-dive into the literature, always striving to be better equipped to answer the age old questions, "What is it, and where is it from?" The tables and figures in this manuscript are the ones I "pull up on the computer" when I am teaching at the microscope and turn to myself when I am (frequently) stuck. This field is so exciting because I firmly believe that, through the application of next-generation immunohistochemistry, we can provide better answers than ever before. Specific topics covered in this review include (1) broad tumor classification and associated screening markers; (2) the role of cancer epidemiology in determining pretest probability; (3) broad-spectrum epithelial markers; (4) noncanonical expression of broad tumor class screening markers; (5) a morphologic pattern-based approach to poorly to undifferentiated malignant neoplasms; (6) a morphologic and immunohistochemical approach to define 4 main carcinoma types; (7) CK7/CK20 coordinate expression; (8) added value of semiquantitative immunohistochemical stain assessment; algorithmic immunohistochemical approaches to (9) "garden variety" adenocarcinomas presenting in the liver, (10) large polygonal cell adenocarcinomas, (11) the distinction of primary surface ovarian epithelial tumors with mucinous features from metastasis, (12) tumors presenting at alternative anatomic sites, (13) squamous cell carcinoma versus urothelial carcinoma, and neuroendocrine neoplasms, including (14) the distinction of pheochromocytoma/paraganglioma from well-differentiated neuroendocrine tumor, site of origin assignment in (15) well-differentiated neuroendocrine tumor and (16) poorly differentiated neuroendocrine carcinoma, and (17) the distinction of well-differentiated neuroendocrine tumor G3 from poorly differentiated neuroendocrine carcinoma; it concludes with (18) a discussion of diagnostic considerations in the broad-spectrum keratin/CD45/S-100-"triple-negative" neoplasm.
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23
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Yu KH, Wang F, Berry GJ, Ré C, Altman RB, Snyder M, Kohane IS. Classifying non-small cell lung cancer types and transcriptomic subtypes using convolutional neural networks. J Am Med Inform Assoc 2020; 27:757-769. [PMID: 32364237 PMCID: PMC7309263 DOI: 10.1093/jamia/ocz230] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 11/22/2019] [Accepted: 03/05/2020] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVE Non-small cell lung cancer is a leading cause of cancer death worldwide, and histopathological evaluation plays the primary role in its diagnosis. However, the morphological patterns associated with the molecular subtypes have not been systematically studied. To bridge this gap, we developed a quantitative histopathology analytic framework to identify the types and gene expression subtypes of non-small cell lung cancer objectively. MATERIALS AND METHODS We processed whole-slide histopathology images of lung adenocarcinoma (n = 427) and lung squamous cell carcinoma patients (n = 457) in the Cancer Genome Atlas. We built convolutional neural networks to classify histopathology images, evaluated their performance by the areas under the receiver-operating characteristic curves (AUCs), and validated the results in an independent cohort (n = 125). RESULTS To establish neural networks for quantitative image analyses, we first built convolutional neural network models to identify tumor regions from adjacent dense benign tissues (AUCs > 0.935) and recapitulated expert pathologists' diagnosis (AUCs > 0.877), with the results validated in an independent cohort (AUCs = 0.726-0.864). We further demonstrated that quantitative histopathology morphology features identified the major transcriptomic subtypes of both adenocarcinoma and squamous cell carcinoma (P < .01). DISCUSSION Our study is the first to classify the transcriptomic subtypes of non-small cell lung cancer using fully automated machine learning methods. Our approach does not rely on prior pathology knowledge and can discover novel clinically relevant histopathology patterns objectively. The developed procedure is generalizable to other tumor types or diseases.
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Affiliation(s)
- Kun-Hsing Yu
- Department of Biomedical Informatics, Harvard Medical School, Boston, Massachusetts, USA
| | - Feiran Wang
- Department of Electrical Engineering, Stanford University, Stanford, California, USA
| | - Gerald J Berry
- Department of Pathology, Stanford University, Stanford, California, USA
| | - Christopher Ré
- Department of Computer Science, Stanford University, Stanford, California, USA
| | - Russ B Altman
- Biomedical Informatics Program, Stanford University, Stanford, California, USA
- Department of Bioengineering, Stanford University, Stanford, California, USA
- Department of Genetics, Stanford University, Stanford, California, USA
| | - Michael Snyder
- Department of Genetics, Stanford University, Stanford, California, USA
| | - Isaac S Kohane
- Department of Biomedical Informatics, Harvard Medical School, Boston, Massachusetts, USA
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24
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Ibuki Y, Nishiyama Y, Tsutani Y, Emi M, Hamai Y, Okada M, Tahara H. Circulating microRNA/isomiRs as novel biomarkers of esophageal squamous cell carcinoma. PLoS One 2020; 15:e0231116. [PMID: 32251457 PMCID: PMC7135252 DOI: 10.1371/journal.pone.0231116] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 03/16/2020] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND MicroRNA (miR)s are promising diagnostic biomarkers of cancer. Recent next generation sequencer (NGS) studies have found that isoforms of micro RNA (isomiR) circulate in the bloodstream similarly to mature micro RNA (miR). We hypothesized that combination of circulating miR and isomiRs detected by NGS are potentially powerful cancer biomarker. The present study aimed to investigate their application in esophageal cancer. METHODS Serum samples from patients with esophageal squamous cell carcinoma (ESCC) and age and sex matched healthy control (HC) individuals were investigated for the expression of miR/isomiRs using NGS. Candidate miR/isomiRs which met the criteria in the 1st group (ESCC = 18 and HC = 12) were validated in the 2nd group (ESCC = 30 and HC = 30). A diagnostic panel was generated using miR/isomiRs that were consistently confirmed in the 1st and 2nd groups. Accuracy of the panel was tested then in the 3rd group (ESCC = 18 and HC = 18). Their use was also investigated in 22 paired samples obtained pre- and post-treatment, and in patients with esophageal adenocarcinoma (EAD) and high-grade dysplasia (HGD). RESULTS Twenty-four miR/isomiRs met the criteria for diagnostic biomarker in the 1st and 2nd group. A multiple regression model selected one mature miR (miR-30a-5p) and two isomiRs (isoform of miR-574-3p and miR-205-5p). The index calculated from the diagnostic panel was significantly higher in ESCC patients than in the HCs (13.3±8.9 vs. 3.1±1.3, p<0.001). The area under the receiver operating characteristics (ROC) curves of the panel index was 0.95. Sensitivity and specificity were 93.8%, and 81% in the 1st and 2nd groups, and 88.9% and 72.3% in the 3rd group, respectively. The panel index was significantly lower in patients with EAD (6.2±4.5) and HGD (4.2±1.7) than in those with ESCC and was significantly decreased at post-treatment compared with pre-treatment (6.2±5.6 vs 11.6±11.5, p = 0.03). CONCLUSION Our diagnostic panel had high accuracy in the diagnosis of ESCC. MiR/isomiRs detected by NGS could serve as novel biomarkers of ESCC.
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Affiliation(s)
- Yuta Ibuki
- Department of Cellular and Molecular Biology, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Yukie Nishiyama
- Department of Cellular and Molecular Biology, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan
| | - Yasuhiro Tsutani
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Manabu Emi
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Yoichi Hamai
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Morihito Okada
- Department of Surgical Oncology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Hidetoshi Tahara
- Department of Cellular and Molecular Biology, Graduate School of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan
- Collaborative laboratory of Liquid Biopsy, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- The Research Center for Drug Development and Biomarker Discovery, Hiroshima University, Hiroshima, Japan
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25
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Integrating circulating miRNA analysis in the clinical management of lung cancer: Present or future? Mol Aspects Med 2020; 72:100844. [DOI: 10.1016/j.mam.2020.100844] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 01/08/2020] [Accepted: 01/09/2020] [Indexed: 02/07/2023]
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26
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Yang Z, Yin H, Shi L, Qian X. A novel microRNA signature for pathological grading in lung adenocarcinoma based on TCGA and GEO data. Int J Mol Med 2020; 45:1397-1408. [PMID: 32323746 PMCID: PMC7138293 DOI: 10.3892/ijmm.2020.4526] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Accepted: 02/11/2020] [Indexed: 12/14/2022] Open
Abstract
Lung adenocarcinoma (LUAD) is one of the most common types of lung cancer and its poor prognosis largely depends on the tumor pathological stage. Critical roles of microRNAs (miRNAs) have been reported in the tumorigenesis and progression of lung cancer. However, whether the differential expression pattern of miRNAs could be used to distinguish early-stage (stage I) from mid-late-stage (stages II–IV) LUAD tumors is still unclear. In this study, clinical information and miRNA expression profiles of patients with LUAD were downloaded from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus databases. TCGA-LUAD (n=470) dataset was used for model training and validation, and the GSE62182 (n=94) and GSE83527 (n=36) datasets were used as external independent test datasets. The diagnostic model was created through miRNA feature selection followed by SVM classifier and was confirmed by 5-fold cross-validation. A receiver operating characteristic curve was calculated to evaluate the accuracy and robustness of the model. Using the DX score and LIBSVM tool, a 16-miRNA signature that could distinguish LUAD pathological stages was identified. The area under the curve rates were 0.62 [95% confidence interval (CI): 0.56–0.67], 0.66 (95% CI: 0.54–0.76) and 0.63 (95% CI: 0.43–0.82) in TCGA-LUAD internal validation dataset, the GSE62182 external validation dataset, and the GSE83527 external validation dataset, respectively. Kyoto Encyclopedia of Genes and Genomes and Gene Ontology enrichment analyses suggested that the target genes of the 16-miRNA signature were mainly involved in metabolic pathways. The present findings demonstrate that a 16-miRNA signature could serve as a promising diagnostic biomarker for pathological staging in LUAD.
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Affiliation(s)
- Zhiyu Yang
- SJTU‑Yitu Joint Laboratory of Artificial Intelligence in Healthcare, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, P.R. China
| | - Hongkun Yin
- Shanghai Yitu Healthcare Technology Co. Ltd., Shanghai 200051, P.R. China
| | - Lei Shi
- Hangzhou Yitu Healthcare Technology Co. Ltd., Hangzhou, Zhejiang 310012, P.R. China
| | - Xiaohua Qian
- SJTU‑Yitu Joint Laboratory of Artificial Intelligence in Healthcare, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, P.R. China
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27
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Zhang H, Jin Z, Cheng L, Zhang B. Integrative Analysis of Methylation and Gene Expression in Lung Adenocarcinoma and Squamous Cell Lung Carcinoma. Front Bioeng Biotechnol 2020; 8:3. [PMID: 32117905 PMCID: PMC7019569 DOI: 10.3389/fbioe.2020.00003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 01/03/2020] [Indexed: 12/18/2022] Open
Abstract
Lung cancer is a highly prevalent type of cancer with a poor 5-year survival rate of about 4-17%. Eighty percent lung cancer belongs to non-small-cell lung cancer (NSCLC). For a long time, the treatment of NSCLC has been mostly guided by tumor stage, and there has been no significant difference between the therapy strategy of lung adenocarcinoma (LUAD) and squamous cell lung carcinoma (SCLC), the two major subtypes of NSCLC. In recent years, important molecular differences between LUAD and SCLC are increasingly identified, indicating that targeted therapy will be more and more histologically specific in the future. To investigate the LUAD and SCLC difference on multi-omics scale, we analyzed the methylation and gene expression data together. With the Boruta method to remove irrelevant features and the MCFS (Monte Carlo Feature Selection) method to identify the significantly important features, we identified 113 key methylation features and 23 key gene expression features. HNF1B and TP63 were found to be dysfunctional on both methylation and gene expression levels. The experimentally determined interaction network suggested that TP63 may play an important role in connecting methylation genes and expression genes. Many of the discovered signature genes have been supported by literature. Our results may provide directions of precision diagnosis and therapy of LUAD and SCLC.
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Affiliation(s)
- Hao Zhang
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Zhou Jin
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Department of Respiration, Hospital of Traditional Chinese Medicine of Zhenhai, Ningbo, China
| | - Ling Cheng
- Shanghai Engineering Research Center of Pharmaceutical Translation, Shanghai, China
| | - Bin Zhang
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
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28
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Sheervalilou R, Shahraki O, Hasanifard L, Shirvaliloo M, Mehranfar S, Lotfi H, Pilehvar-Soltanahmadi Y, Bahmanpour Z, Zadeh SS, Nazarlou Z, Kangarlou H, Ghaznavi H, Zarghami N. Electrochemical Nano-biosensors as Novel Approach for the Detection of Lung Cancer-related MicroRNAs. Curr Mol Med 2019; 20:13-35. [DOI: 10.2174/1566524019666191001114941] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 08/22/2019] [Accepted: 09/03/2019] [Indexed: 12/12/2022]
Abstract
In both men and women around the world, lung cancer accounts as the
principal cause of cancer-related death after breast cancer. Therefore, early detection of
the disease is a cardinal step in improving prognosis and survival of patients. Today, the
newly-defined microRNAs regulate about 30 to 60 percent of the gene expression.
Changes in microRNA Profiles are linked to numerous health conditions, making them
sophisticated biomarkers for timely, if not early, detection of cancer. Though evaluation
of microRNAs in real samples has proved to be rather challenging, which is largely
attributable to the unique characteristics of these molecules. Short length, sequence
similarity, and low concentration stand among the factors that define microRNAs.
Recently, diagnostic technologies with a focus on wide-scale point of care have recently
garnered attention as great candidates for early diagnosis of cancer. Electrochemical
nano-biosensors have recently garnered much attention as a molecular method,
showing great potential in terms of sensitivity, specificity and reproducibility, and last but
not least, adaptability to point-of-care testing. Application of nanoscale materials in
electrochemical devices as promising as it is, brings multiplexing potential for conducting
simultaneous evaluations on multiple cancer biomarkers. Thanks to their enthralling
properties, these materials can be used to improve the efficiency of cancer diagnostics,
offer more accurate predictions of prognosis, and monitor response to therapy in a more
efficacious way. This article presents a concise overview of recent advances in the
expeditiously evolving area of electrochemical biosensors for microRNA detection in
lung cancer.
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Affiliation(s)
| | - Omolbanin Shahraki
- Pharmacology Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Leili Hasanifard
- Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Milad Shirvaliloo
- Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sahar Mehranfar
- Department of Genetics and Immunology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Hajie Lotfi
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Younes Pilehvar-Soltanahmadi
- Cellular and Molecular Research Center, Research Institute for Cellular and Molecular Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Zahra Bahmanpour
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sadaf Sarraf Zadeh
- Neurosciences Research Center, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Ziba Nazarlou
- Material Engineering Department, College of Science Koç University, Istanbul 34450, Turkey
| | - Haleh Kangarlou
- Department of Physics, Urmia Branch, Islamic Azad University, Urmia, Iran
| | - Habib Ghaznavi
- Pharmacology Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Nosratollah Zarghami
- Tuberculosis and Lung Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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29
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Tian Y, Yu M, Sun L, Liu L, Wang J, Hui K, Nan Q, Nie X, Ren Y, Ren X. Distinct Patterns of mRNA and lncRNA Expression Differences Between Lung Squamous Cell Carcinoma and Adenocarcinoma. J Comput Biol 2019; 27:1067-1078. [PMID: 31750732 DOI: 10.1089/cmb.2019.0164] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
This study aimed to assess mRNA and lncRNA expression differences between lung squamous cell carcinoma (LUSC) and lung adenocarcinoma (LUAD). Cancer tissues were obtained from three LUSC and three LUAD patients, followed by RNA-seq. Differentially expressed mRNAs (DE-mRNAs) and lncRNAs (DE-lncRNAs) were identified between LUSC and LUAD, after which functional enrichment analysis and protein-protein interaction (PPI) network construction was performed on DEGs. Coexpression analysis of lncRNA-gene and prediction of DEG-related miRNAs as well as function enrichment analysis, and construction of competing endogenous RNAs (ceRNA) regulatory network were then conducted. Moreover, survival analysis on differentially expressed RNAs was performed based on data downloaded from The Cancer Genome Atlas (TCGA) database. In this study, 518 DEGs and 117 DE-lncRNAs were identified between LUSC and LUAD. The DEGs were mainly associated with cell adhesion, PI3K-Akt signaling pathway, and focal adhesion. PPI network analysis indicated several genes with highest connectivity, such as CCND1. DE-lncRNAs that coexpressed with DEGs were also associated with tight junction and DE-lncRNAs that had more corepressed relationships with DEGs included GSEC, NKX2-1-AS1, LINC01415, and LINC00839. Moreover, the genes and lncRNAs with higher connectivity in the ceRNA network included NEAT1, SLC5A3, LINC00839, ETV1, CMTM4, and SNX30. Several genes were significantly related to the survival of patients with LUSC and LUAD, including ETV1, RTKN2, SNX30, PAK2, and CCND1. Genes and lncRNAs associated with cell junction have specific patterns in two major histological subtypes of NSCLC. GSEC, NKX2-1-AS1, NEAT1, CCND1, and ETV1 may be potential novel biomarkers for personalized treatment strategies of NSCLC.
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Affiliation(s)
- Yingxuan Tian
- Department of Elderly Respiratory Medicine, Shaanxi Provincial People's Hospital, Xi'an, China.,Department of Elderly Medicine, the Affiliated Shaanxi Provincial People's Hospital, Xi'an Medical College, Xi'an, China
| | - Min Yu
- Department of Oncology Medicine, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Li Sun
- Department of Elderly Respiratory Medicine, Shaanxi Provincial People's Hospital, Xi'an, China.,Department of Elderly Medicine, the Affiliated Shaanxi Provincial People's Hospital, Xi'an Medical College, Xi'an, China
| | - Linghua Liu
- Department of Elderly Respiratory Medicine, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Jun Wang
- Department of Elderly Respiratory Medicine, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Ke Hui
- Department of Elderly Respiratory Medicine, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Qiaofeng Nan
- Department of Elderly Medicine, the Affiliated Shaanxi Provincial People's Hospital, Xi'an Medical College, Xi'an, China
| | - Xinyu Nie
- Graduate School of Medical College, Yan'an University, Yan'an, China
| | - Yajuan Ren
- Department of Elderly Respiratory Medicine, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Xiaoping Ren
- Department of Elderly Respiratory Medicine, Shaanxi Provincial People's Hospital, Xi'an, China
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Li X, Shi G, Chu Q, Jiang W, Liu Y, Zhang S, Zhang Z, Wei Z, He F, Guo Z, Qi L. A qualitative transcriptional signature for the histological reclassification of lung squamous cell carcinomas and adenocarcinomas. BMC Genomics 2019; 20:881. [PMID: 31752667 PMCID: PMC6868745 DOI: 10.1186/s12864-019-6086-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 09/09/2019] [Indexed: 12/31/2022] Open
Abstract
Background Targeted therapy for non-small cell lung cancer is histology dependent. However, histological classification by routine pathological assessment with hematoxylin-eosin staining and immunostaining for poorly differentiated tumors, particularly those from small biopsies, is still challenging. Additionally, the effectiveness of immunomarkers is limited by technical inconsistencies of immunostaining and lack of standardization for staining interpretation. Results Using gene expression profiles of pathologically-determined lung adenocarcinomas and squamous cell carcinomas, denoted as pADC and pSCC respectively, we developed a qualitative transcriptional signature, based on the within-sample relative gene expression orderings (REOs) of gene pairs, to distinguish ADC from SCC. The signature consists of two genes, KRT5 and AGR2, which has the stable REO pattern of KRT5 > AGR2 in pSCC and KRT5 < AGR2 in pADC. In the two test datasets with relative unambiguous NSCLC types, the apparent accuracy of the signature were 94.44 and 98.41%, respectively. In the other integrated dataset for frozen tissues, the signature reclassified 4.22% of the 805 pADC patients as SCC and 12% of the 125 pSCC patients as ADC. Similar results were observed in the clinical challenging cases, including FFPE specimens, mixed tumors, small biopsy specimens and poorly differentiated specimens. The survival analyses showed that the pADC patients reclassified as SCC had significantly shorter overall survival than the signature-confirmed pADC patients (log-rank p = 0.0123, HR = 1.89), consisting with the knowledge that SCC patients suffer poor prognoses than ADC patients. The proliferative activity, subtype-specific marker genes and consensus clustering analyses also supported the correctness of our signature. Conclusions The non-subjective qualitative REOs signature could effectively distinguish ADC from SCC, which would be an auxiliary test for the pathological assessment of the ambiguous cases.
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Affiliation(s)
- Xin Li
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150086, China
| | - Gengen Shi
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150086, China
| | - Qingsong Chu
- Fujian Key Laboratory for Translational Research, Institute of Translational Medicine, Fujian Medical University, Fuzhou, 350001, China
| | - Wenbin Jiang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150086, China
| | - Yixin Liu
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150086, China
| | - Sainan Zhang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150086, China
| | - Zheyang Zhang
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150086, China
| | - Zixin Wei
- Department of Medical Oncology, Harbin Medical University Cancer hospital, Harbin, 150081, China
| | - Fei He
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, 350001, China
| | - Zheng Guo
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150086, China. .,Department of Bioinformatics, Key Laboratory of Ministry of Education for Gastrointestinal Cancer, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, 350001, China. .,Key laboratory of Medical Bioinformatics, Fujian Province, Fuzhou, 350001, China.
| | - Lishuang Qi
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, 150086, China.
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Yang X, Su W, Chen X, Geng Q, Zhai J, Shan H, Guo C, Wang Z, Fu H, Jiang H, Lin J, Lagisetty KH, Zhang J, Li Y, Yang S, Massion PP, Beer DG, Chang AC, Ramnath N, Chen G. Validation of a serum 4-microRNA signature for the detection of lung cancer. Transl Lung Cancer Res 2019; 8:636-648. [PMID: 31737499 PMCID: PMC6835096 DOI: 10.21037/tlcr.2019.09.11] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 09/05/2019] [Indexed: 01/13/2023]
Abstract
BACKGROUND Our previous studies have identified a serum-based 4-microRNA (4-miRNA) signature that may help distinguish patients with lung cancer (LC) from non-cancer controls (NCs). Here, we used an extended independent cohort of 398 subjects to further validate the diagnostic ability of this 4-miRNA signature. METHODS Using quantitative reverse transcription polymerase chain reaction (qRT-PCR), expression of the 4-miRNAs was assessed in a total of 398 sera that included 213 LC patients and 185 NCs. A logistic regression model using training-test sets, receiver operating characteristic (ROC) curve analysis and t-test were used to test the impact of varying expression of these miRNAs on its diagnostic accuracy for LC. The cell proliferation and colony formation affected by these miRNAs, as well as gene ontology (GO) analysis of miRNA target genes were performed. RESULTS The levels of the 4-miRNAs were significantly higher in the serum of patients with LCs as compared to NCs. Using a logistic regression prediction model based on training and test sets analysis, we obtained the area under the curve (AUC) of 0.921 [95% confidence interval (CI), 0.876-0.966] on the test set with specificity 90.6%, sensitivity 77.9%, accuracy 84.1%, positive predictive value (PPV) 89.8% and negative predictive value (NPV) 79.5%. CONCLUSIONS We have verified that this serum 4-miRNA signature could provide a promising noninvasive biomarker for the prediction of LC, particularly in patients with indeterminate lung nodules on screening CT scans.
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Affiliation(s)
- Xia Yang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710004, China
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Wenmei Su
- Department of Pulmonary Oncology, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524000, China
| | - Xiuyuan Chen
- Department of Thoracic Surgery, Peking University People’s Hospital, Beijing 100044, China
| | - Qianqian Geng
- Department of Nuclear Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China
| | - Jingyi Zhai
- Department of Biostatistics, University of Michigan, Ann Arbor, MI, USA
| | - Hu Shan
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710004, China
| | - Chunfang Guo
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Zhuwen Wang
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Han Fu
- Department of Biostatistics, University of Michigan, Ann Arbor, MI, USA
| | - Hui Jiang
- Department of Biostatistics, University of Michigan, Ann Arbor, MI, USA
| | - Jules Lin
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Kiran Hari Lagisetty
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Jie Zhang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710004, China
| | - Yali Li
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710004, China
| | - Shuanying Yang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710004, China
| | - Pierre P. Massion
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - David G. Beer
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Andrew C. Chang
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Nithya Ramnath
- Department of Medicine, University of Michigan, Ann Arbor, MI, USA
- Department of Oncology, Veterans Administration Health System, Ann Arbor, MI, USA
| | - Guoan Chen
- School of Medicine, Southern University of Science and Technology, Shenzhen 518055, China
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Karimi A, Bahrami N, Sayedyahossein A, Derakhshan S. Evaluation of circulating serum 3 types of microRNA as biomarkers of oral squamous cell carcinoma; A pilot study. J Oral Pathol Med 2019; 49:43-48. [PMID: 31483888 DOI: 10.1111/jop.12959] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 08/16/2019] [Accepted: 08/24/2019] [Indexed: 01/05/2023]
Abstract
INTRODUCTION The microRNAs are molecules which have important biologic role and play key point in cancers. The aim of present study was to determine the miR-21, miR-24, and miR-29a expression in serum of patients with oral squamous cell carcinoma. MATERIALS AND METHODS Blood samples were obtained from 40 patients (20 in cases and 20 in control group) to determine the miR-21, miR-24, and miR-29a expressions by using real-time PCR and ΔCT. RESULTS Mean miR-29a was -2.28 ± 2.15 and 5.61 ± 2.38 in case and control groups, respectively. The miR-21 was 6.90 ± 3.86 and -0.88 ± 2.31 in case and control groups, respectively. According to the results, miR-24 was 2.13 ± 2.89 and -0.35 ± 2.44 in case and control, respectively. A significant difference was observed on miR-21, miR-24, and miR-29a between two groups (P < .05). The results obtained by t test showed miR-21 and miR-24 were higher and miR-29a was lower in plasma of oral squamous cell carcinoma patients and this differences were significant (P < .05). CONCLUSION These results suggested miR-21, miR-24, and miR-29a in serum of patients with oral squamous cell carcinoma comparing with normal group can be used as potent markers for carcinoma detection and also may be a potentially therapeutic approach in the future. More longitudinal studies with larger samples are necessary to confirm these findings.
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Affiliation(s)
- Abbas Karimi
- Oral and Maxillofacial Surgery Department, Craniomaxillofacial Research Center, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Naghmeh Bahrami
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Craniomaxillofacial Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Samira Derakhshan
- Oral and Maxillofacial Pathology Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
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The Roles of MicroRNA in Lung Cancer. Int J Mol Sci 2019; 20:ijms20071611. [PMID: 30935143 PMCID: PMC6480472 DOI: 10.3390/ijms20071611] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 03/11/2019] [Accepted: 03/26/2019] [Indexed: 02/06/2023] Open
Abstract
Lung cancer is the most devastating malignancy in the world. Beyond genetic research, epigenomic studies—especially investigations of microRNAs—have grown rapidly in quantity and quality in the past decade. This has enriched our understanding about basic cancer biology and lit up the opportunities for potential therapeutic development. In this review, we summarize the involvement of microRNAs in lung cancer carcinogenesis and behavior, by illustrating the relationship to each cancer hallmark capability, and in addition, we briefly describe the clinical applications of microRNAs in lung cancer diagnosis and prognosis. Finally, we discuss the potential therapeutic use of microRNAs in lung cancer.
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Li L, Lu M, Fan Y, Shui L, Xie S, Sheng R, Si H, Li Q, Wang Y, Tang B. High-throughput and ultra-sensitive single-cell profiling of multiple microRNAs and identification of human cancer. Chem Commun (Camb) 2019; 55:10404-10407. [DOI: 10.1039/c9cc05553c] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We established an efficient method for single-cell multiple miRNA analysis by droplet microfluidics with high sensitivity and high throughput.
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Tran N, Abhyankar V, Nguyen K, Weidanz J, Gao J. MicroRNA dysregulational synergistic network: discovering microRNA dysregulatory modules across subtypes in non-small cell lung cancers. BMC Bioinformatics 2018; 19:504. [PMID: 30577741 PMCID: PMC6302368 DOI: 10.1186/s12859-018-2536-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background The majority of cancer-related deaths are due to lung cancer, and there is a need for reliable diagnostic biomarkers to predict stages in non-small cell lung cancer cases. Recently, microRNAs were found to have potential as both biomarkers and therapeutic targets for lung cancer. However, some of the microRNA’s functions are unknown, and their roles in cancer stage progression have been mostly undiscovered in this clinically and genetically heterogeneous disease. As evidence suggests that microRNA dysregulations are implicated in many diseases, it is essential to consider the changes in microRNA-target regulation across different lung cancer subtypes. Results We proposed a pipeline to identify microRNA synergistic modules with similar dysregulation patterns across multiple subtypes by constructing the MicroRNA Dysregulational Synergistic Network. From the network, we extracted microRNA modules and incorporated them as prior knowledge to the Sparse Group Lasso classifier. This leads to a more relevant selection of microRNA biomarkers, thereby improving the cancer stage classification accuracy. We applied our method to the TCGA Lung Adenocarcinoma and the Lung Squamous Cell Carcinoma datasets. In cross-validation tests, the area under ROC curve rate for the cancer stages prediction has increased considerably when incorporating the learned microRNA dysregulation modules. The extracted modules from multiple independent subtypes differential analyses were found to have high agreement with microRNA family annotations, and they can also be used to identify mutual biomarkers between different subtypes. Among the top-ranked candidate microRNAs selected by the model, 87% were reported to be related to Lung Adenocarcinoma. The overall result demonstrates that clustering microRNAs from the dysregulation pattern between microRNAs and their targets leads to biomarkers with high precision and recall rate to known differentially expressed disease-associated microRNAs. Conclusions The results indicated that our method improves microRNA biomarker selection by detecting similar microRNA dysregulational synergistic patterns across the multiple subtypes. Since microRNA-target dysregulations are implicated in many cancers, we believe this tool can have broad applications for discovery of novel microRNA biomarkers in heterogeneous cancer diseases.
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Affiliation(s)
- Nhat Tran
- Department of Computer Science and Engineering, The University of Texas at Arlington, Arlington, TX, 76019, USA
| | - Vinay Abhyankar
- UTARI Research Institute, The University of Texas at Arlington, 7300 Jack Newell Blvd S, Fort Worth, TX, 76118, USA
| | - KyTai Nguyen
- Department of Bioengineering, The University of Texas at Arlington, Arlington, TX, 76019, USA
| | - Jon Weidanz
- Department of Biology, The University of Texas at Arlington, Arlington, TX, 76019, USA
| | - Jean Gao
- Department of Computer Science and Engineering, The University of Texas at Arlington, Arlington, TX, 76019, USA.
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Iqbal MA, Arora S, Prakasam G, Calin GA, Syed MA. MicroRNA in lung cancer: role, mechanisms, pathways and therapeutic relevance. Mol Aspects Med 2018; 70:3-20. [PMID: 30102929 DOI: 10.1016/j.mam.2018.07.003] [Citation(s) in RCA: 276] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 07/28/2018] [Accepted: 07/30/2018] [Indexed: 12/29/2022]
Abstract
Lung cancer is the cardinal cause of cancer-related deaths with restricted recourse of therapy throughout the world. Clinical success of therapies is not very promising due to - late diagnosis, limited therapeutic tools, relapse and the development of drug resistance. Recently, small ∼20-24 nucleotides molecules called microRNAs (miRNAs) have come into the limelight as they play outstanding role in the process of tumorigenesis by regulating cell cycle, metastasis, angiogenesis, metabolism and apoptosis. miRNAs essentially regulate gene expression via post-transcriptional regulation of mRNA. Nevertheless, few studies have conceded the role of miRNAs in activation of gene expression. A large body of data generated by numerous studies is suggestive of their tumor-suppressing, oncogenic, diagnostic and prognostic biomarker roles in lung cancer. They have also been implicated in regulating cancer cell metabolism and resistance or sensitivity towards chemotherapy and radiotherapy. Further, miRNAs have also been convoluted in regulation of immune checkpoints - Programmed death 1 (PD-1) and its ligand (PD-L1). These molecules play a significant role in tumor immune escape leading to the generation of a microenvironment favouring tumor growth and progression. Therefore, it is imperative to explore the expression of miRNA and understand its relevance in lung cancer and development of anti-cancer strategies (anti - miRs, miR mimics and micro RNA sponges). In view of the above, the role of miRNA in lung cancer has been dissected and the associated mechanisms and pathways are discussed in this review.
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Affiliation(s)
- Mohammad Askandar Iqbal
- Department of Biotechnology, Faculty of Natural Sciences, Jamia Millia Islamia (A Central University), New Delhi-110025, India.
| | - Shweta Arora
- Department of Biotechnology, Faculty of Natural Sciences, Jamia Millia Islamia (A Central University), New Delhi-110025, India.
| | - Gopinath Prakasam
- School of Life Sciences, Jawaharlal Nehru University, New Delhi-110067, India.
| | - George A Calin
- Department of Experimental Therapeutics, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX-77030, USA.
| | - Mansoor Ali Syed
- Department of Biotechnology, Faculty of Natural Sciences, Jamia Millia Islamia (A Central University), New Delhi-110025, India.
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Alipourfard B, Abhyankar V, Nguyen K, Weidanz J, Gao J. Improved microRNA biomarkers for pathological stages in lung adenocarcinoma via clustering of dysregulated microRNA-target associations. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2018; 2017:2708-2711. [PMID: 29060458 DOI: 10.1109/embc.2017.8037416] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Most of cancer-related deaths are due to lung cancer, and there is a need for reliable prognosis biomarkers to predict stages in lung adenocarcinoma cases. Recently, microRNAs are found to have potential as both biomarkers and therapeutic targets for lung cancer. As evidence suggests microRNA dysregulations are implicated in many cancer malignancies, it is important to consider the changes in miRNA-target associations among different lung cancer biological states. We proposed a novel clustering strategy to identify groups of miRNAs with similar dysregulated targets. Then, we incorporated the learned clusters of miRNA as prior knowledge to a Sparse Group Lasso classifier to improve classification results, thereby leading to more relevant selection of microRNA biomarkers. We apply the method to the TCGA Lung Adenocarcinoma dataset. In cross-validation tests, the AUC rate for each stages is 1.0, 0.71, 0.68, 0.64, and 0.90 for normal, Stage I, Stage II, Stage III, and Stage IV, respectively. Among the candidate miRNAs selected in the model, 87% are reported to be related to Lung Adenocarcinoma. Further result demonstrates that clustering miRNAs by considering the dysregulation between miRNAs and mRNA targets leads to biomarkers with higher precision and recall rate to known lung adenocarcinoma miRNAs.
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Han Y, Li H. miRNAs as biomarkers and for the early detection of non-small cell lung cancer (NSCLC). J Thorac Dis 2018; 10:3119-3131. [PMID: 29997981 DOI: 10.21037/jtd.2018.05.32] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Lung cancer is the most frequently diagnosed cancer and the most common cause of cancer death globally, of which 85% is non-small cell lung cancer (NSCLC). Early detection of NSCLC is essential to identify potential individuals for radical cure. Although low-dose computed tomography (LDCT) is recommended as standard screening with a mortality reduction of 20%, it displays a high false positive rate that poses an issue of overdiagnosis. MicroRNAs (miRNAs) are a group of small non-coding RNAs acting as important regulators in post-transcriptional gene expression and have been studied for their extensive role as novel biomarkers in NSCLC. Herein, we discuss the miRNA biology, its role in cancer, the potential of biomarkers both in cancer and NSCLC, and promising current publications of diagnostic biomarkers for early detection in NSCLC, especially studies in order to complement LDCT screening.
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Affiliation(s)
- Yichao Han
- Department of Thoracic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Hecheng Li
- Department of Thoracic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
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Singh P, Srivastava AN, Sharma R, Mateen S, Shukla B, Singh A, Chandel S. Circulating MicroRNA-21 Expression as a Novel Serum Biomarker for Oral Sub-Mucous Fibrosis and Oral Squamous Cell Carcinoma. Asian Pac J Cancer Prev 2018; 19:1053-1057. [PMID: 29699056 PMCID: PMC6031776 DOI: 10.22034/apjcp.2018.19.4.1053] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 03/12/2018] [Indexed: 02/06/2023] Open
Abstract
Background: Circulating miRNAs (miRs) in the biofluids such as serum and plasma act as potential biomarkers for early diagnosis, treatment and prognosis. In the present study, an attempt made to see the expression of miR-21 in serum of 20 cases of Oral sub-mucous fibrosis (OSMF), 20 cases of Oral squamous cell carcinoma and 40 healthy volunteers. The expression of miR-21 was evaluated in relation to different demographical and clinicopathological features such as sex, tobacco, pan-masala, alcohol, smoking and clinical staging respectively with an aim to identify correlation with oral pre-cancer and cancer stages. Materials and Methods: The relative expression level of miR-21 was determined by quantitative real-time RT-PCR (qRT-PCR) in the sera of 20 OSCC, 20 OSMF patients and 40 healthy subjects as a control. Association between expression of miR-21 and OSCC clinical stages and demographical parameters such as sex, pan-masala, tobacco, smoking, alcohol have also been analyzed in detail. Results: The results obtained by t-test revealed significant increase in the expression level of miR-21 in OSCC as compared to OSMF. The study also revealed the positive correlation between higher miR-21 expression and pan-masala chewers as shown by t-test. The statistical test, ANOVA has also indicated a positive correlation between up-regulation of miR-21 in the clinical stages of the OSCC. Conclusion: The results of present study indicated up-regulation of circulating miR-21 in serum of OSCC as compared to OSMF (p=0.001), this study also elucidated the positive correlation between miR-21 expression in OSCC/OSMF patients, only one demographical parameter (Pan-masala) and negative correlation for other parameters such as sex, tobacco, smoking, alcohol etc. Other findings suggested a significant increase (p=0.000) in the expression of miR-21 in clinical staging (I-IV) of oral cancer. More studies are needed to validate it as potential diagnostic and prognostic biomarker for OSMF and OSCC for better management.
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Affiliation(s)
- Pooja Singh
- Department of Pathology, Era’s Lucknow Medical College and Hospital, Lucknow.
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40
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Uddin A, Chakraborty S. Role of miRNAs in lung cancer. J Cell Physiol 2018. [PMID: 29676470 DOI: 10.1002/jcp.26607] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Accepted: 03/16/2018] [Indexed: 12/18/2022]
Abstract
Lung cancer (LC) is the leading cause of cancer-related deaths all over the world, among both men and women, with an incidence of over 200,000 new cases per year coupled with a very high mortality rate. LC comprises of two major clinicopathological categories: small-cell (SCLC) and nonsmall-cell lung carcinoma (NSCLC). The microRNAs (miRNAs) are small noncoding RNAs, usually 18-25 nucleotides long, which repress protein translation through binding to complementary target mRNAs. The miRNAs regulate many biological processes including cell cycle regulation, cellular growth, proliferation, differentiation, apoptosis, metabolism, neuronal patterning, and aging. This review summarizes the role of miRNAs expression in LC. It also provides information about the miRNAs as biomarker and therapeutic target for lung cancer. Understanding the role of miRNAs in LC may provide insights into the diagnosis and treatment strategy for LC.
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Affiliation(s)
- Arif Uddin
- Department of Zoology, Moinul Hoque Choudhury Memorial Science College, Algapur, Hailakandi, Assam, India
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Sonea L, Buse M, Gulei D, Onaciu A, Simon I, Braicu C, Berindan-Neagoe I. Decoding the Emerging Patterns Exhibited in Non-coding RNAs Characteristic of Lung Cancer with Regard to their Clinical Significance. Curr Genomics 2018; 19:258-278. [PMID: 29755289 PMCID: PMC5930448 DOI: 10.2174/1389202918666171005100124] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 07/14/2017] [Accepted: 09/21/2017] [Indexed: 12/17/2022] Open
Abstract
Lung cancer continues to be the leading topic concerning global mortality rate caused by can-cer; it needs to be further investigated to reduce these dramatic unfavorable statistic data. Non-coding RNAs (ncRNAs) have been shown to be important cellular regulatory factors and the alteration of their expression levels has become correlated to extensive number of pathologies. Specifically, their expres-sion profiles are correlated with development and progression of lung cancer, generating great interest for further investigation. This review focuses on the complex role of non-coding RNAs, namely miR-NAs, piwi-interacting RNAs, small nucleolar RNAs, long non-coding RNAs and circular RNAs in the process of developing novel biomarkers for diagnostic and prognostic factors that can then be utilized for personalized therapies toward this devastating disease. To support the concept of personalized medi-cine, we will focus on the roles of miRNAs in lung cancer tumorigenesis, their use as diagnostic and prognostic biomarkers and their application for patient therapy.
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Affiliation(s)
- Laura Sonea
- MEDFUTURE - Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Mihail Buse
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Diana Gulei
- MEDFUTURE - Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Anca Onaciu
- MEDFUTURE - Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Ioan Simon
- Surgery Department IV, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.,Surgery Department, Romanian Railway (CF) University Hospital, Cluj-Napoca, Romania
| | - Cornelia Braicu
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Ioana Berindan-Neagoe
- MEDFUTURE - Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.,Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.,Department of Functional Genomics and Experimental Pathology, "Prof. Dr. Ion Chiricuta" The Oncology Institute, Republicii Street, No. 34-36, 401015, Cluj-Napoca, Romania
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42
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Abstract
Lung cancer is the leading cause of cancer deaths worldwide and over 80% of lung cancer patients are classified as having non-small cell lung cancer. Although there have been technological advancements in the early detection and standard treatment of lung cancer, it is often diagnosed at an advanced stage and is chemoresistant to most available drugs. A number of studies have demonstrated that microRNA is able to modulate various tumorigenic processes, including progression and metastasis, in various mechanisms. In this review we examine the most recent achievements in microRNA and lung cancer treatment and summarize the research progress on the reciprocal regulation between microRNA and epigenetic modifications, as both have been intensively studied in lung cancer. Epigenetic modifications on the human genome regulate gene and microRNA expression at the transcriptional level; inversely, microRNA can also transcriptionally cleave and/or translationally repress the expression of several key enzymes involved in epigenetic processes such as DNA methylation and histone modification. Better understanding of reciprocal regulation between microRNA and epigenetic modifications will underlie the development of novel microRNA orientated diagnostic and therapeutic strategies relating to lung cancer in the near future.
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Affiliation(s)
- Rajeev Kumar
- Mitchell Cancer Institute, University of South Alabama, Mobile, Alabama, USA
| | - Yaguang Xi
- Mitchell Cancer Institute, University of South Alabama, Mobile, Alabama, USA
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Identification of a three-miRNA signature as a blood-borne diagnostic marker for early diagnosis of lung adenocarcinoma. Oncotarget 2018; 7:26070-86. [PMID: 27036025 PMCID: PMC5041965 DOI: 10.18632/oncotarget.8429] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 03/14/2016] [Indexed: 01/08/2023] Open
Abstract
Background The subtypes of NSCLC have unique characteristics of pathogenic mechanism and responses to targeted therapies. Thus, non-invasive markers for diagnosis of different subtypes of NSCLC at early stage are needed. Results Based on the results from the screening and validation process, 3 miRNAs (miR-532, miR-628-3p and miR-425-3p) were found to display significantly different expression levels in early-stage lung adenocarcinoma, as compared to those in healthy controls. ROC analysis showed that the miRNA–based biomarker could distinguish lung adenocarcinoma from healthy controls with high AUC (0.974), sensitivity (91.5%), and specificity (97.8%). Importantly, these three miRNAs could also distinguish lung adenocarcinoma from lung benigh diseases and other subtypes of lung cancer. Methods Two hundreds and one early-stage lung adenocarcinoma cases and one hundreds seventy eight age- and sex-matched healthy controls were recruited to this study. We screened the differentially expressed plasma miRNAs using TaqMan Low Density Arrays (TLDA) followed by three-phase qRT-PCR validation. A risk score model was established to evaluate the diagnostic value of the plasma miRNA profiling system. Conclusions Taken together, these findings suggest that the 3 miRNA–based biomarker might serve as a novel non-invasive approach for diagnosis of early-stage lung adenocarcinoma.
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Yang W, Zhou C, Luo M, Shi X, Li Y, Sun Z, Zhou F, Chen Z, He J. MiR-652-3p is upregulated in non-small cell lung cancer and promotes proliferation and metastasis by directly targeting Lgl1. Oncotarget 2017; 7:16703-15. [PMID: 26934648 PMCID: PMC4941345 DOI: 10.18632/oncotarget.7697] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 02/06/2016] [Indexed: 12/17/2022] Open
Abstract
Our previous study found that miR-652-3p is markedly upregulated in the serum of patients with NSCLC and suggesting that miR-652-3p is a potential biomarker for the early diagnosis of NSCLC. In this study, we detected the expression of miR-652-3p in NSCLC tumor tissues and cell lines and investigated the effect of miR-652-3p on the proliferation and metastasis of NSCLC cells. Our results showed that the expression of miR-652-3p was significantly upregulated in tumor tissues of 50 patients with NSCLC, and it was significantly higher in patients with positive lymph node metastasis, advanced TNM stage and poor prognosis. Using functional analyses by overexpressing or suppressing miR-652-3p in NSCLC cells, we demonstrated that miR-652-3p promoted cell proliferation, migration, invasion and inhibited cell apoptosis. Moreover, the lethal(2) giant larvae 1 (Lgl1) was identified as a direct and functional target of miR-652-3p. Overexpression or knockdown of miR-652-3p led to decreased or increased expression of Lgl1 protein, and the binding site mutation of LLGL1 3'UTR abrogated the responsiveness of the luciferase reporters to miR-652-3p. Overexpression of Lgl1 partially attenuated the function of miR-652-3p. Collectively, these results revealed that miR-652-3p execute a tumor-promoter function in NSCLC through direct binding and regulating the expression of Lgl1.
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Affiliation(s)
- Wenhui Yang
- Department of Thoracic Surgery, Cancer Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100021, China
| | - Chengcheng Zhou
- Department of Thoracic Surgery, Cancer Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100021, China
| | - Mei Luo
- Department of Thoracic Surgery, Cancer Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100021, China
| | - Xuejiao Shi
- Department of Thoracic Surgery, Cancer Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100021, China
| | - Yuan Li
- Department of Thoracic Surgery, Cancer Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100021, China
| | - Zengmiao Sun
- Department of Thoracic Surgery, Cancer Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100021, China
| | - Fang Zhou
- Department of Thoracic Surgery, Cancer Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100021, China
| | - Zhaoli Chen
- Department of Thoracic Surgery, Cancer Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100021, China
| | - Jie He
- Department of Thoracic Surgery, Cancer Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100021, China
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High miR-205 expression in normal epithelium is associated with biochemical failure - an argument for epithelial crosstalk in prostate cancer? Sci Rep 2017; 7:16308. [PMID: 29176717 PMCID: PMC5701197 DOI: 10.1038/s41598-017-16556-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 11/14/2017] [Indexed: 12/31/2022] Open
Abstract
Due to insufficient prognostic tools, failure to predict aggressive prostate cancer (PC) has left patient selection for radical treatment an unsolved challenge. This has resulted in overtreatment with radical therapy. Better prognostic tools are urgently warranted. MicroRNAs (miRs) have emerged as important regulators of cellular pathways, resulting in altered gene expressions. miR-205 has previously been observed downregulated in PC, acting as tumor suppressor. Herein, the expression of miR-205 in prostate tissue was examined in a large, well-described cohort of 535 Norwegian prostatectomy patients. Using in situ hybridization, miR-205 expression was semiquantatively measured in normal and tumor tissues from radical prostatectomy specimens. Associations with clinicopathological data and PC relapse were calculated. Expression of miR-205 was lower in tumor epithelium compared to normal epithelium. No association was observed between miR-205 expression in primary tumor epithelium and cancer relapse. In contrast, high expression of miR-205 in normal epithelium was independently associated with biochemical relapse (HR = 1.64, p = 0.003). A prognostic importance of miR-205 expression was only found in the normal epithelium, raising the hypothesis of epithelial crosstalk between normal and tumor epithelium in PC. This finding supports the proposed novel hypothesis of an anti-cancerogenous function of normal epithelium in tumor tissue.
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Huang WT, Cen WL, He RQ, Xie Y, Zhang Y, Li P, Gan TQ, Chen G, Hu XH. Effect of miR‑146a‑5p on tumor growth in NSCLC using chick chorioallantoic membrane assay and bioinformatics investigation. Mol Med Rep 2017; 16:8781-8792. [PMID: 28990079 PMCID: PMC5779957 DOI: 10.3892/mmr.2017.7713] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Accepted: 09/22/2017] [Indexed: 12/12/2022] Open
Abstract
Our previous study demonstrated that the expression of miR-146a-5p was downregulated in non-small cell lung cancer (NSCLC) tissue, which affected the progression and prognosis of patients with NSCLC. Thus, the present study was conducted to investigate the functional mechanism of miR-146a-5p in tumorigenesis and angiogenesis in NSCLC. Following the construction of a H460 NSCLC cell line in which miR-146a-5p was overexpressed via lentivirus transduction, the NSCLC chick embryo chorioallantoic membrane (CAM) model was established by transplanting miR-146a-5p-overexpressing NSCLC cells into the CAM. Then, the size of the neoplasms within the CAM was measured, the vessel ratio was calculated, and the cellular morphology, metastasis and inflammation of tumor cell was observed using hematoxylin and eosin staining. The target genes of miR-146a-5p were predicted by 12 online software programs; these genes were then subjected to Gene Ontology enrichment analysis and Kyoto Encyclopedia of Genes and Genomes pathway annotations using the Database for Annotation, Visualization and Integrated Discovery 6.7 as well as constructed into a protein interaction network using protein-protein interaction from Search Tool for the Retrieval of Interacting Genes/Proteins. The xenograft tumor size and angiogenesis conditions of the miR-146a-5p-overexpressing group (volume 6.340±0.066 mm3, vessel ratio 9.326±0.083) was obviously restricted (P<0.001) when compared with the low expression group (volume 30.13±0.06 mm3, vessel ratio 16.94±0.11). In addition, marked necrosis along with inflammatory cell infiltration was observed with the HE-stained slices from the miR-146a-5p low expression group. Regarding the results of the target gene prediction, cancer and toll-like receptor signaling were the two most significant pathways represented among the target genes, while JUN, EGFR and RAC1 were the most relevant proteins among the selected potential targets of miR-146a-5p. In a CAM xenograft tumor model, overexpression of miR-146a-5p inhibited the tumorigenesis and angiogenesis of an NSCLC cell line. miR-146a-5p may act as a tumor suppressor gene in NSCLC and have moderate prognostic value in lung cancer.
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Affiliation(s)
- Wen-Ting Huang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Wei-Luan Cen
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Rong-Quan He
- Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - You Xie
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Yu Zhang
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Ping Li
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Ting-Qing Gan
- Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Gang Chen
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Xiao-Hua Hu
- Department of Medical Oncology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
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Sun Y, Hawkins PG, Bi N, Dess RT, Tewari M, Hearn JWD, Hayman JA, Kalemkerian GP, Lawrence TS, Ten Haken RK, Matuszak MM, Kong FM, Jolly S, Schipper MJ. Serum MicroRNA Signature Predicts Response to High-Dose Radiation Therapy in Locally Advanced Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2017; 100:107-114. [PMID: 29051037 DOI: 10.1016/j.ijrobp.2017.08.039] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 07/11/2017] [Accepted: 08/28/2017] [Indexed: 12/13/2022]
Abstract
PURPOSE To assess the utility of circulating serum microRNAs (c-miRNAs) to predict response to high-dose radiation therapy for locally advanced non-small cell lung cancer (NSCLC). METHODS AND MATERIALS Data from 80 patients treated from 2004 to 2013 with definitive standard- or high-dose radiation therapy for stages II-III NSCLC as part of 4 prospective institutional clinical trials were evaluated. Pretreatment serum levels of 62 miRNAs were measured by quantitative reverse transcription-polymerase chain reaction array. We combined miRNA data and clinical factors to generate a dose-response score (DRS) for predicting overall survival (OS) after high-dose versus standard-dose radiation therapy. Elastic net Cox regression was used for variable selection and parameter estimation. Model assessment and tuning parameter selection were performed through full cross-validation. The DRS was also correlated with local progression, distant metastasis, and grade 3 or higher cardiac toxicity using Cox regression, and grade 2 or higher esophageal and pulmonary toxicity using logistic regression. RESULTS Eleven predictive miRNAs were combined with clinical factors to generate a DRS for each patient. In patients with low DRS, high-dose radiation therapy was associated with significantly improved OS compared to treatment with standard-dose radiation therapy (hazard ratio 0.22). In these patients, high-dose radiation also conferred lower risk of distant metastasis and local progression, although the latter association was not statistically significant. Patients with high DRS exhibited similar rates of OS regardless of dose (hazard ratio 0.78). The DRS did not correlate with treatment-related toxicity. CONCLUSIONS Using c-miRNA signature and clinical factors, we developed a DRS that identified a subset of patients with locally advanced NSCLC who derive an OS benefit from high-dose radiation therapy. This DRS may guide dose escalation in a patient-specific manner.
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Affiliation(s)
- Yilun Sun
- Department of Biostatistics, University of Michigan, Ann Arbor, Michigan
| | - Peter G Hawkins
- Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan
| | - Nan Bi
- Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan; Department of Radiation Oncology, Cancer Hospital and Institute, Chinese Academy of Medical Sciences and Peking Union Medical College, Peking, People's Republic of China
| | - Robert T Dess
- Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan
| | - Muneesh Tewari
- Division of Hematology/Oncology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan; Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan; Biointerfaces Institute, University of Michigan, Ann Arbor, Michigan; Center for Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan
| | - Jason W D Hearn
- Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan
| | - James A Hayman
- Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan
| | - Gregory P Kalemkerian
- Division of Hematology/Oncology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Theodore S Lawrence
- Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan
| | - Randall K Ten Haken
- Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan
| | - Martha M Matuszak
- Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan
| | - Feng-Ming Kong
- Department of Radiation Oncology, Indiana University, Indianapolis, Indiana
| | - Shruti Jolly
- Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan.
| | - Matthew J Schipper
- Department of Biostatistics, University of Michigan, Ann Arbor, Michigan; Department of Radiation Oncology, University of Michigan, Ann Arbor, Michigan
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48
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Identification of microRNA differentially expressed in three subtypes of non-small cell lung cancer and in silico functional analysis. Oncotarget 2017; 8:74554-74566. [PMID: 29088807 PMCID: PMC5650362 DOI: 10.18632/oncotarget.20218] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 06/30/2017] [Indexed: 01/10/2023] Open
Abstract
Emerging studies demonstrated that miRNAs played fundamental roles in lung cancer. In this study, we attempted to explore the clinical significance of the miRNA signature in different histological subtypes of non-small cell lung cancer (NSCLC). Three miRNome profiling datasets (GSE19945, GSE25508 and GSE51853) containing lung squamous cell carcinoma (SCC), lung adenocarcinoma (ADC) and large cell lung cancer (LCLC) samples were obtained for bioinformatics and survival analysis. Moreover, pathway enrichment and coexpression network were performed to explore underlying molecular mechanism. MicroRNA-375 (miR-375), miR-203 and miR-205 were identified as differentially expressed miRNAs (DEmiRNAs) which distinguished SCC from other NSCLC subtypes. Pathway enrichment analysis suggested that Hippo signaling pathway was combinatorically affected by above mentioned three miRNAs. Coexpression analysis of three miRNAs and the Hippo signaling pathway related genes were conducted based on another dataset, GSE51852. Four hub genes (TP63, RERE, TJP1 and YWHAE) were identified as the candidate targets of three miRNAs, and three of them (TP63, TJP1 and YWHAE) were validated to be downregulated by miR-203 and miR-375, respectively. Finally, survival analysis further suggested the prognostic value of three-miRNA signature in SCC patients. Taken together, our study compared the miRNA profiles among three histological subtypes of NSCLC, and suggested that a three-miRNA signature might be potential diagnostic and prognostic biomarkers for SCC patients.
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Woo JS, Reddy OL, Koo M, Xiong Y, Li F, Xu H. Application of Immunohistochemistry in the Diagnosis of Pulmonary and Pleural Neoplasms. Arch Pathol Lab Med 2017. [PMID: 28644685 DOI: 10.5858/arpa.2016-0550-ra] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT - A vast majority of neoplasms arising from lung or pleura are initially diagnosed based on the histologic evaluation of small transbronchial, endobronchial, or needle core biopsies. Although most diagnoses can be determined by morphology alone, immunohistochemistry can be a valuable diagnostic tool in the workup of problematic cases. OBJECTIVE - To provide a practical approach in the interpretation and immunohistochemical selection of lung/pleura-based neoplasms obtained from small biopsy samples. DATA SOURCES - A literature review of previously published articles and the personal experience of the authors were used in this review article. CONCLUSION - Immunohistochemistry is a useful diagnostic tool in the workup of small biopsies from the lung and pleura sampled by small biopsy techniques.
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Upregulation of microRNA-137 expression by Slug promotes tumor invasion and metastasis of non-small cell lung cancer cells through suppression of TFAP2C. Cancer Lett 2017; 402:190-202. [PMID: 28610956 DOI: 10.1016/j.canlet.2017.06.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 04/29/2017] [Accepted: 06/03/2017] [Indexed: 12/31/2022]
Abstract
The epithelial-mesenchymal transition (EMT) regulator, Slug, plays multifaceted roles in controlling lung cancer progression, but its downstream targets and mechanisms in promoting lung cancer progression have not been well defined. In particular, the miRNAs downstream of Slug in non-small cell lung cancer (NSCLC) remain undetermined. Here, we report that miR-137 is downstream of the EMT regulator, Slug, in lung cancer cells. Slug binds directly to the E-box of the miR-137 promoter and up-regulates its expression in lung cancer cells. Knockdown of miR-137 abolished Slug-induced cancer invasion and migration, whereas upregulation of miR-137 was found to trigger lung cancer cell invasion and progression by direct suppressing TFAP2C (transcription factor AP-2 gamma). Clinical data showed that lung adenocarcinoma patients with low-level expression of Slug and miR-137 but high-level expression of TFAP2C experienced significantly better survival. miR-137 is a Slug-induced miRNA that relays the pro-metastatic effects of Slug by targeting TFAP2C. Our findings add new components to the Slug-mediated regulatory network in lung cancer, and suggest that Slug, miR-137, and TFAP2C may be useful prognostic markers in lung adenocarcinoma.
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