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Xing Z, Xu Y, Xu X, Yang K, Qin S, Jiao Y, Wang L. Identification and validation of a novel risk model based on cuproptosis‑associated m6A for head and neck squamous cell carcinoma. BMC Med Genomics 2024; 17:137. [PMID: 38778403 PMCID: PMC11110395 DOI: 10.1186/s12920-024-01916-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 05/17/2024] [Indexed: 05/25/2024] Open
Abstract
BACKGROUND Head and neck squamous cell carcinoma (HNSCC) is a prevalent cancer with a poor survival rate due to anatomical limitations of the head and a lack of reliable biomarkers. Cuproptosis represents a novel cellular regulated death pathway, and N6-methyladenosine (m6A) is the most common internal RNA modification in mRNA. They are intricately connected to tumor formation, progression, and prognosis. This study aimed to construct a risk model for HNSCC using a set of mRNAs associated with m6A regulators and cuproptosis genes (mcrmRNA). METHODS RNA-seq and clinical data of HNSCC patients from The Cancer Genome Atlas (TCGA) database were analyzed to develop a risk model through the least absolute shrinkage and selection operator (LASSO) analysis. Survival analysis and receiver operating characteristic (ROC) analysis were performed for the high- and low-risk groups. Additionally, the model was validated using the GSE41613 dataset from the Gene Expression Omnibus (GEO) database. GSEA and CIBERSORT were applied to investigate the immune microenvironment of HNSCC. RESULTS A risk model consisting of 32 mcrmRNA was developed using the LASSO analysis. The risk score of patients was confirmed to be an independent prognostic indicator by multivariate Cox analysis. The high-risk group exhibited a higher tumor mutation burden. Additionally, CIBERSORT analysis indicated varying levels of immune cell infiltration between the two groups. Significant disparities in drug sensitivity to common medications were also observed. Enrichment analysis further unveiled significant differences in metabolic pathways and RNA processing between the two groups. CONCLUSIONS Our risk model can predict outcomes for HNSCC patients and offers valuable insights for personalized therapeutic approaches.
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Affiliation(s)
- Zhongxu Xing
- Department of Radiation Oncology, The First Affiliated Hospital of Soochow University, Suzhou, 21500, China
| | - Yijun Xu
- Department of Radiation Oncology, The First Affiliated Hospital of Soochow University, Suzhou, 21500, China
| | - Xiaoyan Xu
- Department of Radiation Oncology, The First Affiliated Hospital of Soochow University, Suzhou, 21500, China
| | - Kaiwen Yang
- Department of Radiation Oncology, The First Affiliated Hospital of Soochow University, Suzhou, 21500, China
| | - Songbing Qin
- Department of Radiation Oncology, The First Affiliated Hospital of Soochow University, Suzhou, 21500, China
| | - Yang Jiao
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China.
| | - Lili Wang
- Department of Radiation Oncology, The First Affiliated Hospital of Soochow University, Suzhou, 21500, China.
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Guo D, Feng Y, Liu P, Yang S, Zhao W, Li H. Identification and prognostic analysis of ferroptosis‑related gene HSPA5 to predict the progression of lung squamous cell carcinoma. Oncol Lett 2024; 27:186. [PMID: 38464337 PMCID: PMC10921261 DOI: 10.3892/ol.2024.14320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 02/01/2024] [Indexed: 03/12/2024] Open
Abstract
Ferroptosis, an iron-dependent form of regulated cell death driven by excessive lipid peroxidation, is implicated in the development and therapeutic responses of cancer. However, the role of ferroptosis-related gene profiles in lung squamous cell carcinoma (LSCC) remains largely unknown. The present study aimed to identify the prognostic roles of ferroptosis-related genes in LSCC. Sequencing data from the Cancer Genome Atlas were analyzed and ferroptosis-related gene expression between tumor and para-tumor tissue was identified. The prognostic role of these genes was also assessed using Kaplan-Meier analyses and univariate and multivariate Cox proportional hazards regression model analyses. Immunological correlation, tumor stemness, drug sensitivity and the transcriptional differences of heat shock protein (HSP)A5 in LSCC were also analyzed. Thereafter, the expression of HSPA5 in 100 patients with metastatic LSCC was evaluated using immunohistochemistry (IHC) and the clinical significance of these markers with different risk factors was assessed. Of the 22 ferroptosis-related genes, the expression of HSPA5, HSPB1, glutathione peroxidase 4, Fanconi anemia complementation group D2, CDGSH iron sulfur domain 1, farnesyl-diphosphate farnesyltransferase 1, nuclear factor erythroid 2 like 2, solute carrier (SLC)1A5, ribosomal protein L8, nuclear receptor coactivator 4, transferrin receptor and SLC7A11 was significantly increased in LSCC compared with adjacent tissues. However, only high expression of HSPA5 was able to predict progression-free survival (PFS) and disease-free survival in LSCC. Although HSPA5 was also significantly elevated in patients with lung adenocarcinoma, HSPA5 expression did not predict the prognosis of patients with lung adenocarcinoma. Of note, a higher expression of HSPA5 was related to higher responses to chemotherapy but not to immunotherapy. In addition, HSPA5 expression was positively correlated with 'ferroptosis', 'cellular responses to hypoxia', 'tumor proliferation signature', 'G2M checkpoint', 'MYC targets' and 'TGFB'. IHC analysis also demonstrated that a high expression of HSPA5 in patients with metastatic LSCC in the study cohort was associated with shorter PFS and overall survival. In conclusion, the present study demonstrated that the expression of the ferroptosis-related gene HSPA5 may be a negative prognostic marker for LSCC.
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Affiliation(s)
- Di Guo
- Department of Respiratory and Critical Care Medicine, Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
| | - Yonghai Feng
- Department of Respiratory and Critical Care Medicine, Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
| | - Peijie Liu
- Department of Respiratory and Critical Care Medicine, Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
| | - Shanshan Yang
- Department of Respiratory and Critical Care Medicine, Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
| | - Wenfei Zhao
- Department of Respiratory and Critical Care Medicine, Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
| | - Hongyun Li
- Department of Respiratory and Critical Care Medicine, Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
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Panuganti BA, Carico C, Jeyarajan H, Flagg M, Tamayo P. Transcriptional subtypes of glottic cancer characterized by differential activation of canonical oncogenic programming. Head Neck 2023; 45:2851-2861. [PMID: 37682073 PMCID: PMC10901072 DOI: 10.1002/hed.27514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 08/31/2023] [Indexed: 09/09/2023] Open
Abstract
BACKGROUND There is a paucity of data concerning molecular heterogeneity among glottic squamous cell carcinoma, and the clinical implications thereof. METHODS Data corresponding to glottic squamous cell carcinoma were derived from The Cancer Genome Atlas. The Onco-GPS computational methodology was levied to derive four patterns of transcriptional activity and three functional subtypes of glottic cancer. RESULTS Thirty glottic cancer samples stratified to three distinct oncogenic states (S0-S2) based on a Onco-GPS model containing four transcriptional components (F0-F3). Membership in S2 and association with transcriptional component F0 conveyed an invasive phenotype, with transcriptional activity strongly reflecting EMT programming (including TGF-B and NF-KB signaling). S2 membership also correlated with inferior disease-specific survival (HR 9.027, 95% CI 1.021-79.767), and higher incidences of extracapsular spread and perineural invasion. CONCLUSIONS We present a functional taxonomy of glottic cancer, with subtypes demonstrating differential upregulation of canonical oncogenic networks and survival implications.
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Affiliation(s)
- Bharat A Panuganti
- Department of Otolaryngology - Head and Neck Surgery, The University of Alabama at Birmingham, Birmingham, Alabama, USA
- Birmingham Veteran Affairs Health Care System, Birmingham, Alabama, USA
- The University of Alabama at Birmingham School of Medicine, Birmingham, Alabama, USA
| | - Christine Carico
- The University of Alabama at Birmingham School of Medicine, Birmingham, Alabama, USA
| | - Harishanker Jeyarajan
- Department of Otolaryngology - Head and Neck Surgery, The University of Alabama at Birmingham, Birmingham, Alabama, USA
- The University of Alabama at Birmingham School of Medicine, Birmingham, Alabama, USA
| | - Mitchell Flagg
- University of California-San Diego School of Medicine, San Diego, California, USA
| | - Pablo Tamayo
- University of California-San Diego School of Medicine, San Diego, California, USA
- Moores Cancer Center, Center for Novel Therapeutics and Division of Genomics and Precision Medicine, University of California-San Diego School of Medicine, San Diego, California, USA
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Nie Y, Yao G, Xu X, Liu Y, Yin K, Lai J, Li Q, Zhou F, Yang Z. Single-cell mapping of N6-methyladenosine in esophageal squamous cell carcinoma and exploration of the risk model for immune infiltration. Front Endocrinol (Lausanne) 2023; 14:1155009. [PMID: 37025404 PMCID: PMC10070687 DOI: 10.3389/fendo.2023.1155009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 03/09/2023] [Indexed: 04/08/2023] Open
Abstract
BACKGROUND N6-methyladenosine (m6A) modification is the most common RNA modification, but its potential role in the development of esophageal cancer and its specific mechanisms still need to be further investigated. METHODS Bulk RNA-seq of 174 patients with esophageal squamous carcinoma from the TCGA-ESCC cohort, GSE53625, and single-cell sequencing data from patients with esophageal squamous carcinoma from GSE188900 were included in this study. Single-cell analysis of scRNA-seq data from GSE188900 of 4 esophageal squamous carcinoma samples and calculation of PROGENy scores. Demonstrate the scoring of tumor-associated pathways for different cell populations. Cell Chat was calculated for cell populations. thereafter, m6A-related differential genes were sought and risk models were constructed to analyze the relevant biological functions and impact pathways of potential m6A genes and their impact on immune infiltration and tumor treatment sensitivity in ESCC was investigated. RESULTS By umap downscaling analysis, ESCC single-cell data were labelled into clusters of seven immune cell classes. Cellchat analysis showed that the network interactions of four signaling pathways, MIF, AFF, FN1 and CD99, all showed different cell type interactions. The prognostic risk model constructed by screening for m6A-related differential genes was of significant value in the prognostic stratification of ESCC patients and had a significant impact on immune infiltration and chemotherapy sensitivity in ESCC patients. CONCLUSION In our study, we explored a blueprint for the distribution of single cells in ESCC based on m6A methylation and constructed a risk model for immune infiltration analysis and tumor efficacy stratification in ESCC on this basis. This may provide important potential guidance for revealing the role of m6A in immune escape and treatment resistance in esophageal cancer.
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Affiliation(s)
- Yuanliu Nie
- Tumor Research and Therapy Center, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Guangyue Yao
- Tumor Research and Therapy Center, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Xiaoying Xu
- Shandong First Medical University, College of Basic Medicine, Shandong First Medical University-Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Yi Liu
- Department of Computer Science and Technology, Ocean University of China, Qingdao, China
| | - Ke Yin
- Department of Pathology, Shandong Provincial Hospital, Shandong University, Jinan, China
| | - Jingjiang Lai
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Qiang Li
- Tumor Research and Therapy Center, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Fengge Zhou
- Tumor Research and Therapy Center, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
- *Correspondence: Fengge Zhou, ; Zhe Yang,
| | - Zhe Yang
- Tumor Research and Therapy Center, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
- Tumor Research and Therapy Center, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
- *Correspondence: Fengge Zhou, ; Zhe Yang,
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Yang B, Chen S, Zang Y. The Mechanism of Nemo-Like Kinase (NLK) in Non-Small Cell Lung Cancer (NSCLC) Cells by Regulating Vascular Endothelial Growth Factor (VEGF). J BIOMATER TISS ENG 2022. [DOI: 10.1166/jbt.2022.3193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Nemo-like kinase (NLK) is abnormally expressed in several tumors, but its role in NSCLC have not been reported. Real time PCR and Western blot were used to assess NLK level in tumor tissues and adjacent tissues of NSCLC. NSCLC cell line A549 cells were divided into three groups; NC
group and si-NLK group which was transfected with NLK negative control or NLK siRNA respectively followed by analysis of NLK expression by real time PCR and Western blot, cell proliferation by MTT assay, cell migration by cell wound healing assay, cell invasion by transwell chamber and MMP-9
and VEGF expression by Western blot. The expression of NLK in NSCLC tumor tissue was increased, and the difference was statistically significant compared with adjacent tissues (P <0.05), and it was related to tumor size, degree of differentiation, metastasis and survival time (P
<0.05). A549 cells showed significantly increased NLK. Transfection of NLK siRNA could significantly inhibit tumor cell proliferation, migration and invasion, and decrease the expression of MMP-9 and VEGF proteins (P <0.05). Elevated NLK level in NSCLC tumor tissues is related
to clinicopathological characteristics. Decreased the expression of NLK can inhibit VEGF and MMP-9 expression, and inhibit cell function.
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Affiliation(s)
- Biaolong Yang
- Department of Oncology, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Shiqi Chen
- Department of Oncology, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
| | - Yuansheng Zang
- Department of Oncology, Changzheng Hospital, Naval Medical University, Shanghai, 200003, China
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徐 娟, 张 立, 董 伟, 陈 曦, 周 涵, 殷 敏. [Development and validation of nomogram for predicting prognosis of patients with laryngeal squamous cell carcinoma after surgery]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2022; 36:902-909. [PMID: 36543396 PMCID: PMC10128279 DOI: 10.13201/j.issn.2096-7993.2022.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Indexed: 12/24/2022]
Abstract
Objective:To explore the relationship between preoperative blood indexes, clinicopathological characteristics and prognosis of patients with laryngeal squamous cell carcinoma(LSCC), and to establish a nomogram for predicting survival and recurrence time of LSCC patients. Methods:The clinical data of 530 patients with LSCC who received primary surgical treatment were analyzed retrospectively. The patients were randomly divided into training group and testing group according to the ratio of 7∶3. The nomograms of overall survival(OS) and recurrence-free survival(RFS) were constructed based on Cox regression model, and the nomograms were verified and compared with TNM stage. Results:The results of multivariate analysis showed that age, operation mode, tumor diameter, TNM stage, cervical lymph node metastasis, fibrinogen level and systemic immune inflammation index were significantly correlated with OS, while operation mode, tumor diameter, TNM stage, cervical lymph node metastasis, international normalized ratio, neutrophil to lymphocyte ratio and platelet to lymphocyte ratio were significantly correlated with RFS. The nomograms were constructed based on the above factors. The C-indexes of the nomograms of OS and RFS in the training group were 0.755 and 0.687, respectively, which were higher than those of TNM stage(0.657 and 0.582). In the testing group, the C-indexes of OS and RFS nomograms were 0.717 and 0.646, respectively, which were higher than those of TNM stage(0.599 and 0.528). The area under the receiver operating characteristic curves of these nomograms were also higher than TNM stage. The calibration curves showed that the models had good consistency. Decision curve analysis(DCA) showed that these nomograms had higher clinical benefit than TNM stage. Conclusion:Based on the independent prognostic factors, the predictive nomograms of OS and RFS at 1, 3 and 5 years after LSCC were constructed, which have certain clinical significance in guiding the individualized diagnosis and treatment of LSCC.
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Affiliation(s)
- 娟 徐
- 南京医科大学第一附属医院耳鼻咽喉科(南京, 210029)Department of Otorhinolaryngology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, 210029, China
| | - 立庆 张
- 南京医科大学第一附属医院耳鼻咽喉科(南京, 210029)Department of Otorhinolaryngology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, 210029, China
| | - 伟达 董
- 南京医科大学第一附属医院耳鼻咽喉科(南京, 210029)Department of Otorhinolaryngology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, 210029, China
| | - 曦 陈
- 南京医科大学第一附属医院耳鼻咽喉科(南京, 210029)Department of Otorhinolaryngology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, 210029, China
| | - 涵 周
- 南京医科大学第一附属医院耳鼻咽喉科(南京, 210029)Department of Otorhinolaryngology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, 210029, China
| | - 敏 殷
- 南京医科大学第一附属医院耳鼻咽喉科(南京, 210029)Department of Otorhinolaryngology, the First Affiliated Hospital, Nanjing Medical University, Nanjing, 210029, China
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Li W, Zhang H, Ren L, Zou Y, Tian F, Ji X, Li Q, Wang W, Ma G, Xia S. Radiomics of dual-energy computed tomography for predicting progression-free survival in patients with early glottic cancer. Future Oncol 2022; 18:1873-1884. [PMID: 35293227 DOI: 10.2217/fon-2021-1125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: This study aimed to predict progression-free survival (PFS) in patients with early glottic cancer using radiomic features on dual-energy computed tomography iodine maps. Methods: Radiomic features were extracted from arterial and venous phase iodine maps, and radiomic risk scores were determined by univariate Cox proportional hazards regression analysis and least absolute shrinkage and selection operator regression with tenfold cross-validation. The Kaplan-Meier method was used to evaluate the association between radiomic risk scores and PFS. Results: Patients were stratified into low-risk and high-risk groups using radiomics, the PFS corresponding rates with statistical significance between the two groups. The high-risk group showed better survival, benefiting from laryngectomy. Conclusion: Radiomics could provide a promising biomarker for predicting the PFS of early glottic cancer patients.
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Affiliation(s)
- Wenfei Li
- Department of Radiology, The First Central Clinical School, Tianjin Medical University, No. 24 Fukang Road, Nankai District, Tianjin, 300192, China.,Department of Radiology, The First Hospital of Qinhuangdao, No. 258 Wenhua Road, Haigang District, Qinhuangdao, 066000, China
| | - Huanlei Zhang
- Department of Radiology, The First Central Clinical School, Tianjin Medical University, No. 24 Fukang Road, Nankai District, Tianjin, 300192, China
| | - Lei Ren
- Department of Radiology, The First Central Clinical School, Tianjin Medical University, No. 24 Fukang Road, Nankai District, Tianjin, 300192, China.,Department of Medical Imaging, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, No. 88 Changling Road, Xiqing District, Tianjin, 300381, China
| | - Ying Zou
- Department of Medical Imaging, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, No. 88 Changling Road, Xiqing District, Tianjin, 300381, China
| | - Fengyue Tian
- Department of Radiology, Affiliated Hospital of Nankai University (Tianjin No. 4 Hospital), No. 4 Weishan Road, Hexi District, Tianjin, 300222, China
| | - Xiaodong Ji
- Department of Radiology, Tianjin First Central Hospital, School of Medicine, Nankai University, No. 24 Fukang Road, Nankai District, Tianjin, 300192, China
| | - Qing Li
- Department of Radiology, Tianjin First Central Hospital, School of Medicine, Nankai University, No. 24 Fukang Road, Nankai District, Tianjin, 300192, China
| | - Wei Wang
- Department of Otolaryngology, Tianjin First Central Hospital, School of Medicine, Nankai University, No. 24 Fukang Road, Nankai District, Tianjin, 300192, China
| | - Guolin Ma
- Department of Radiology, China-Japan Friendship Hospital, No. 2 East Yinghua Road, Chaoyang District, Beijing, 100029, China
| | - Shuang Xia
- Department of Radiology, Tianjin First Central Hospital, School of Medicine, Nankai University, No. 24 Fukang Road, Nankai District, Tianjin, 300192, China
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Zhang H, Zou Y, Tian F, Li W, Ji X, Guo Y, Li Q, Sun S, Sun F, Shen L, Xia S. Dual-energy CT may predict post-operative recurrence in early-stage glottic laryngeal cancer: a novel nomogram and risk stratification system. Eur Radiol 2022; 32:1921-1930. [PMID: 34762148 DOI: 10.1007/s00330-021-08265-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 06/13/2021] [Accepted: 06/30/2021] [Indexed: 02/07/2023]
Abstract
OBJECTIVES To establish and validate a predictive model integrating with clinical and dual-energy CT (DECT) variables for individual recurrence-free survival (RFS) prediction in early-stage glottic laryngeal cancer (EGLC) after larynx-preserving surgery. METHODS This retrospective study included 212 consecutive patients with EGLC who underwent DECT before larynx-preserving surgery between January 2015 and December 2018. Using Cox proportional hazard regression model to determine independent predictors for RFS and presented on a nomogram. The model's performance was assessed using Harrell's concordance index (C-index), time-dependent area under curve (TD-AUC) plot, and calibration curve. A risk stratification system was established using the nomogram with median scores of all cases to divide all patients into two prognostic groups. RESULTS Recurrence occurred in 39/212 (18.4%) cases. Normalized iodine concentration in arterial (NICAP) and venous phases (NICVP) were verified as significant predictors of RFS in multivariate Cox regression (hazard ratio [HR], 4.2; 95% confidence interval [CI]: 2.3, 7.7, p < .001 and HR, 3.0; 95% CI: 1.5, 5.9, p = .002, respectively). Nomogram based on clinical and DECT variables was better than did only clinical variables. The prediction model proved well-calibrated and had good discriminative ability in the training and validation samples. A risk stratification system was built that could effectively classify EGLC patients into two risk groups. CONCLUSIONS DECT could provide independent RFS indicators in patients with EGLC, and the nomogram based on DECT and clinical variables was useful in predicting RFS at several time points. KEY POINTS • Dual-energy CT(DECT) variables can predict recurrence-free survival (RFS) after larynx-preserving surgery in patients with early-stage glottic laryngeal cancer (EGLC). • The model that integrates clinical and DECT variables predicted RFS better than did only clinical variables. • A risk stratification system based on the nomogram could effectively classify EGLC patients into two risk groups.
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Affiliation(s)
- Huanlei Zhang
- Department of Radiology, First Central Clinical College, Tianjin Medical University, No. 24 Fu Kang Road, Nankai District, Tianjin, 300192, China
- Department of Radiology, Yidu Central Hospital of Weifang, No. 4138 Linglongshan South Road, Qingzhou City, 262500, Shandong, China
| | - Ying Zou
- Department of Radiology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, No. 314 Anshan West Road, Nankai District, Tianjin, 300193, China
| | - Fengyue Tian
- Department of Radiology, Affiliated Hospital of Nankai University (Tianjin No. 4 Hospital), Tianjin, 300222, China
| | - Wenfei Li
- Department of Radiology, The First Hospital of Qinhuangdao, No. 258 Wenhua Road, Haigang District, Qinhuangdao, 066000, China
| | - Xiaodong Ji
- Department of Radiology, Tianjin First Central Hospital, School of Medicine, Nankai University, No. 24 Fu Kang Road, Nankai District, Tianjin, 300192, China
| | - Yu Guo
- Department of Radiology, Tianjin First Central Hospital, School of Medicine, Nankai University, No. 24 Fu Kang Road, Nankai District, Tianjin, 300192, China
| | - Qing Li
- Department of Radiology, Tianjin First Central Hospital, School of Medicine, Nankai University, No. 24 Fu Kang Road, Nankai District, Tianjin, 300192, China
| | - Shuangyan Sun
- Department of Radiology, First Central Clinical College, Tianjin Medical University, No. 24 Fu Kang Road, Nankai District, Tianjin, 300192, China
- Department of Radiology, Jilin Cancer Hospital, No. 1066 JinHu Road, Chaoyang District, , Changchun, 130000, China
| | - Fang Sun
- Department of Radiology, First Central Clinical College, Tianjin Medical University, No. 24 Fu Kang Road, Nankai District, Tianjin, 300192, China
- Department of Ultrasonography, Binzhou Medical University Hospital, No. 661 Huanghe 2nd Road, Binzhou City, Shandong, 256603, China
| | - Lianfang Shen
- Department of Radiology, First Central Clinical College, Tianjin Medical University, No. 24 Fu Kang Road, Nankai District, Tianjin, 300192, China
- Department of Radiology, Yidu Central Hospital of Weifang, No. 4138 Linglongshan South Road, Qingzhou City, 262500, Shandong, China
| | - Shuang Xia
- Department of Radiology, Tianjin First Central Hospital, School of Medicine, Nankai University, No. 24 Fu Kang Road, Nankai District, Tianjin, 300192, China.
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Huang K, Lu Z, Li L, Peng G, Zhou W, Ye Q. Construction of a ceRNA network and a genomic-clinicopathologic nomogram to predict survival for HBV-related HCC. Hum Cell 2021; 34:1830-1842. [PMID: 34487338 DOI: 10.1007/s13577-021-00607-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 08/30/2021] [Indexed: 12/09/2022]
Abstract
Some lncRNA-associated competing endogenous RNAs (ceRNAs) are considered as potential biomarkers for targeted therapies and prognosis in human cancer. In our present study, we aimed to construct a ceRNA network and establish a genomic-clinicopathologic nomogram to provide insights into the molecular mechanisms and predict survival for HBV-related HCC. The Cancer Genome Atlas (TCGA) database was applied to collect the data of LIHC RNA-seq dataset and miRNA-seq dataset as well as the clinicopathological information. Identification of differentially expressed RNAs (mRNAs, lncRNAs, and miRNAs) between HBV-related HCC samples and normal samples was conducted using Limma package in R. The Database for Annotation, Visualization, and Integrated Discovery (DAVID) was used for performing the functional enrichment analysis of differentially expressed mRNAs. The ceRNA network was carried out using Cytoscape. The LASSO-penalized Cox regression analysis was implemented to identify HCC-related lncRNAs, and the multivariate Cox regression analysis was conducted for the establishment of a genomic-clinicopathology nomogram. A total of 1859 DEmRNAs, 113 DElncRNAs, and 89 DEmiRNAs were screened out etween HBV-related HCC samples and normal samples. A ceRNA network including 44 DEmRNAs, 7 DElncRNAs, and 20 DEmiRNAs was constructed. 7 DElncRNAs (PVT1, LINC01138, LINC02499, AL355488.2, FGF14-AS2, MAFG-AS1 and LINC00261) were finally identified as prognostic indicators. The area under the curve reached 0.8169 for the 7-lncRNA signature. The predictive accuracy and clinical application value were remarkably high for the genomic-clinicopathologic nomogram integrating the histological grade and the 7-gene-based prognostic index. Taken together, we have established a ceRNA network with HBV-related HCC-specific DElncRNAs, DEmiRNAs, and DEmRNAs. Furthermore, the genome-wide data of lncRNA expression were analyzed using the TCGA database, and a 7-lncRNA signature was identified as a potential prognostic predictor for HBV-related HCC patients. Novel functional studies were provided by our current findings for elucidating the molecular mechanism of lncRNA in HBV-related HCC.
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Affiliation(s)
- Kang Huang
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan, 430071, Hubei, China
| | - Zhongshan Lu
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan, 430071, Hubei, China
| | - Ling Li
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan, 430071, Hubei, China
| | - Guizhu Peng
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan, 430071, Hubei, China
| | - Wei Zhou
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan, 430071, Hubei, China.
| | - Qifa Ye
- Zhongnan Hospital of Wuhan University, Institute of Hepatobiliary Diseases of Wuhan University, Transplant Center of Wuhan University, National Quality Control Center for Donated Organ Procurement, Hubei Key Laboratory of Medical Technology on Transplantation, Hubei Clinical Research Center for Natural Polymer Biological Liver, Hubei Engineering Center of Natural Polymer-based Medical Materials, Wuhan, 430071, Hubei, China. .,The 3rd Xiangya Hospital of Central South University, Research Center of National Health Ministry on Transplantation Medicine Engineering and Technology, Changsha, 410013, Hunan, China.
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10
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Song K, Yu P, Zhang C, Yuan Z, Zhang H. The LncRNA FGD5-AS1/miR-497-5p axis regulates septin 2 (SEPT2) to accelerate cancer progression and increase cisplatin-resistance in laryngeal squamous cell carcinoma. Mol Carcinog 2021; 60:469-480. [PMID: 34003510 DOI: 10.1002/mc.23305] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 04/14/2021] [Accepted: 04/21/2021] [Indexed: 12/18/2022]
Abstract
Aberrant expression or mutation of the Septin gene family is closely associated with cancer progression, and septin 2 (SEPT2) exerts its tumor-promoting effects in multiple cancers, but its role in regulating laryngeal squamous cell carcinoma (LSCC) progression and drug resistance has not been investigated. Based on the published data, the present study identified that SEPT2 promoted cancer progression and increased cisplatin-resistance in LSCC, and a novel LncRNA FGD5-AS1/miR-497-5p axis was crucial for this process. Mechanistically, SEPT2 tended to be enriched in LSCC tissues and cells, and knock-down of SEPT2 inhibited cell proliferation, viability, migration, and tumorigenesis in LSCC cells in vitro and in vivo. Aside from that, SEPT2 overexpression increased cisplatin resistance in LSCC cells. Next, by conducting the dual-luciferase reporter gene system assay, we identified that the LncRNA FGD5-AS1/miR-497-5p axis regulated SEPT2 in LSCC. Specifically, LncRNA FGD5-AS1 sponged miR-497-5p to upregulate SEPT2 in LSCC cells in a competing endogenous RNA (ceRNA) mechanisms-dependent manner. Interestingly, upregulated LncRNA FGD5-AS1 and downregulated miR-497-5p were observed in LSCC tissues and cells, and LncRNA FGD5-AS1 ablation inhibited cancer progression. Also, LncRNA FGD5-AS1 overexpression increased cisplatin-resistance in LSCC by modulating the miR-497-5p/SEPT2 axis. Collectively, we conclude that targeting the LncRNA FGD5-AS1/miR-497-5p/SEPT2 signaling cascade may be an alternative strategy to treat LSCC in the clinic.
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Affiliation(s)
- Kaibin Song
- Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Pingyang Yu
- Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Cong Zhang
- Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Zhennan Yuan
- Department of Head and Neck Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
| | - Hailin Zhang
- Department of Head and Neck Surgery, Hunan Cancer Hospital, Changsha, Hunan, China
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11
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Transcriptome Analyses Implicate Endogenous Retroviruses Involved in the Host Antiviral Immune System through the Interferon Pathway. Virol Sin 2021; 36:1315-1326. [PMID: 34009516 PMCID: PMC8131884 DOI: 10.1007/s12250-021-00370-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 02/08/2021] [Indexed: 12/19/2022] Open
Abstract
Human endogenous retroviruses (HERVs) are the remains of ancient retroviruses that invaded our ancestors' germline cell and were integrated into the genome. The expression of HERVs has always been a cause for concern because of its association with various cancers and diseases. However, few previous studies have focused on specific activation of HERVs by viral infections. Our previous study has shown that dengue virus type 2 (DENV-2) infection induces the transcription of a large number of abnormal HERVs loci; therefore, the purpose of this study was to explore the relationship between exogenous viral infection and HERV activation further. In this study, we retrieved and reanalyzed published data on 21 transcriptomes of human cells infected with various viruses. We found that infection with different viruses could induce transcriptional activation of HERV loci. Through the comparative analysis of all viral datasets, we identified 43 key HERV loci that were up-regulated by DENV-2, influenza A virus, influenza B virus, Zika virus, measles virus, and West Nile virus infections. Furthermore, the neighboring genes of these HERVs were simultaneously up-regulated, and almost all such neighboring genes were interferon-stimulated genes (ISGs), which are enriched in the host's antiviral immune response pathways. Our data supported the hypothesis that activation of HERVs, probably via an interferon-mediated mechanism, plays an important role in innate immunity against viral infections.
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12
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Chen L, Lin G, Qian J, Chen Z, Wu X, Lin J, Chen Y, Chen Q, Zhuang Z, Hong Y, Wang J, Liu F, Wang J, He B, Chen F. A dynamic prognostic nomogram to predict the benefit from surgical treatment modality for patients with laryngeal squamous cell carcinoma. Head Neck 2021; 43:2148-2158. [PMID: 33784432 DOI: 10.1002/hed.26683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 12/28/2020] [Accepted: 03/12/2021] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Although nonsurgical treatment strategy is increasingly adopted in patients with locoregionally advanced laryngeal squamous cell carcinoma (LSCC), survival disparities were reported between surgical treatment modality and organ preservation protocols, highlighting the great importance for accurate patients' selection. METHOD This secondary analysis used data from the Surveillance, Epidemiology, and End Results database between 2010 and 2015 with follow-up data up to 2018. We developed and validated a dynamic prognostic nomogram for overall survival (OS) in 4237 patients with LSCC and subgroup of 2087 patients with locoregionally advanced laryngeal squamous cell carcinoma (LALSCC). Based on the total risk score derived from the dynamic nomogram, two well-matched risk groups (i.e., low- and high-risk) were created via X-tile software and 1-to-1 propensity score matching (PSM); surgical treatment modality was compared with nonsurgical one in each risk group. RESULTS A more accurate and convenient dynamic prognostic nomogram based on age, marital status, T category, N category, M category, tumor size, and tumor differentiation was developed and validated, of which the predictive performance was superior to that of TNM staging system. For high-risk LALSCC selected by the dynamic nomogram, after 1-to-1 PSM, significantly improved OS was observed in patients with receiving surgical treatment compared to those receipt of nonsurgical management (restricted mean survival time at 36-month: 26.6 vs 22.7, p < 0.001; restricted mean survival time at 60-month: 36.7 vs 31.0, p = 0.003). CONCLUSION We establish and validate a more accurate and convenient dynamic prognostic nomogram for patients with LSCC, which may predict the benefit from surgical treatment modality for patients with high-risk LALSCC.
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Affiliation(s)
- Lin Chen
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Gongbiao Lin
- Department of Otolaryngology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Jiawen Qian
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Zhihong Chen
- Department of Otolaryngology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Xiaobo Wu
- Department of Otolaryngology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Jing Lin
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Ying Chen
- Department of Otolaryngology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Qing Chen
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Zhaocheng Zhuang
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Yihong Hong
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Jing Wang
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Fengqiong Liu
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Jing Wang
- Laboratory Center, The Major Subject of Environment and Health of Fujian Key Universities, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China
| | - Baochang He
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
| | - Fa Chen
- Department of Epidemiology and Health Statistics, Fujian Provincial Key Laboratory of Environment Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou, Fujian, China.,Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian, China
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13
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Identification and validation of methylation-driven genes prognostic signature for recurrence of laryngeal squamous cell carcinoma by integrated bioinformatics analysis. Cancer Cell Int 2020; 20:472. [PMID: 33005105 PMCID: PMC7526132 DOI: 10.1186/s12935-020-01567-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 09/23/2020] [Indexed: 02/07/2023] Open
Abstract
Background Recurrence remains a major obstacle to long-term survival of laryngeal squamous cell carcinoma (LSCC). We conducted a genome-wide integrated analysis of methylation and the transcriptome to establish methylation-driven genes prognostic signature (MDGPS) to precisely predict recurrence probability and optimize therapeutic strategies for LSCC. Methods LSCC DNA methylation datasets and RNA sequencing (RNA-seq) dataset were acquired from the Cancer Genome Atlas (TCGA). MethylMix was applied to detect DNA methylation-driven genes (MDGs). By univariate and multivariate Cox regression analyses, five genes of DNA MDGs was developed a recurrence-free survival (RFS)-related MDGPS. The predictive accuracy and clinical value of the MDGPS were evaluated by receiver operating characteristic (ROC) and decision curve analysis (DCA), and compared with TNM stage system. Additionally, prognostic value of MDGPS was validated by external Gene Expression Omnibus (GEO) database. According to 5 MDGs, the candidate small molecules for LSCC were screen out by the CMap database. To strengthen the bioinformatics analysis results, 30 pairs of clinical samples were evaluated by digoxigenin-labeled chromogenic in situ hybridization (CISH). Results A total of 88 DNA MDGs were identified, and five RFS-related MDGs (LINC01354, CCDC8, PHYHD1, MAGEB2 and ZNF732) were chosen to construct a MDGPS. The MDGPS can effectively divide patients into high-risk and low-risk group, with the area under curve (AUC) of 0.738 (5-year RFS) and AUC of 0.74 (3-year RFS). Stratification analysis affirmed that the MDGPS was still a significant statistical prognostic model in subsets of patients with different clinical variables. Multivariate Cox regression analysis indicated the efficacy of MDGPS appears independent of other clinicopathological characteristics. In terms of predictive capacity and clinical usefulness, the MDGPS was superior to traditional TNM stage. Additionally, the MDGPS was confirmed in external LSCC cohorts from GEO. CMap matched the 9 most significant small molecules as promising therapeutic drugs to reverse the LSCC gene expression. Finally, CISH analysis in 30 LSCC tissues and paired adjacent normal tissues revealed that MAGEB2 has significantly higher expression of LSCC compared to adjacent non-neoplastic tissues; LINC01354, CCDC8, PHYHD1, and ZNF732 have significantly lower expression of LSCC compared to adjacent non-neoplastic tissues, which were in line with bioinformatics analysis results. Conclusion A MDGPS, with five DNA MDGs, was identified and validated in LSCC patients by combining transcriptome and methylation datasets analysis. Compared TNM stage alone, it generates more accurate estimations of the recurrence prediction and maybe offer novel research directions and prospects for individualized treatment of patients with LSCC.
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Su Y, Chen Y, Tian Z, Lu C, Chen L, Ma X. lncRNAs classifier to accurately predict the recurrence of thymic epithelial tumors. Thorac Cancer 2020; 11:1773-1783. [PMID: 32374079 PMCID: PMC7327696 DOI: 10.1111/1759-7714.13439] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/28/2020] [Accepted: 03/30/2020] [Indexed: 12/12/2022] Open
Abstract
Background Long non‐coding RNAs (lncRNAs), which have little or no ability to encode proteins, have attracted special attention due to their potential role in cancer disease. In this study we aimed to establish a lncRNAs classifier to improve the accuracy of recurrence prediction for thymic epithelial tumors (TETs). Methods TETs RNA sequencing (RNA‐seq) data set and the matched clinicopathologic information were downloaded from the Cancer Genome Atlas. Using univariate Cox regression and least absolute shrinkage and selection operator (LASSO) analysis, we developed a lncRNAs classifier related to recurrence. Functional analysis was conducted to investigate the potential biological processes of the lncRNAs target genes. The independent prognostic factors were identified by Cox regression model. Additionally, predictive ability and clinical application of the lncRNAs classifier were assessed, and compared with the Masaoka staging by receiver operating characteristic (ROC) analysis and decision curve analysis (DCA). Results Four recurrence‐free survival (RFS)‐related lncRNAs were identified, and the classifier consisting of the identified four lncRNAs was able to effectively divide the patients into high and low risk subgroups, with an area under curve (AUC) of 0.796 (three‐year RFS) and 0.788 (five‐year RFS), respectively. Multivariate analysis indicated that the lncRNAs classifier was an independent recurrence risk factor. The AUC of the lncRNAs classifier in predicting RFS was significantly higher than the Masaoka staging system. Decision curve analysis further demonstrated that the lncRNAs classifier had a larger net benefit than the Masaoka staging system. Conclusions A lncRNAs classifier for patients with TETs was an independent risk factor for RFS despite other clinicopathologic variables. It generated more accurate estimations of the recurrence probability when compared to the Masaoka staging system, but additional data is required before it can be used in clinical practice.
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Affiliation(s)
- Yongchao Su
- Department of Thoracic Surgery, Sanya Central Hospital, Sanya, China
| | - Yongbing Chen
- Department of Thoracic Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Zuochun Tian
- Department of Thoracic Surgery, Sanya Central Hospital, Sanya, China
| | - Chuangang Lu
- Department of Thoracic Surgery, Sanya Central Hospital, Sanya, China
| | - Liang Chen
- Department of Respiratory Medicine, Sanya Central Hospital, Sanya, China
| | - Ximiao Ma
- Department of Thoracic Surgery, Haikou People's Hospital, Haikou, China
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