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Nobeyama Y, Watanabe Y, Nakagawa H. Silencing of G0/G1 switch gene 2 in cutaneous squamous cell carcinoma. PLoS One 2017; 12:e0187047. [PMID: 29073263 PMCID: PMC5658152 DOI: 10.1371/journal.pone.0187047] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 10/12/2017] [Indexed: 02/06/2023] Open
Abstract
Background Methylation of a CpG island (CGI; a dense cluster of CpGs) located in the 5' region of a gene suppresses that gene's transcription. The expression of G0/G1 switch gene 2 (G0S2) is potentially associated with tumorigenesis. The aim of this study is to elucidate the methylation status of the CGI located in the 5' region of G0S2 (hereinafter called 5' G0S2 CGI) in cutaneous squamous cell carcinoma (SCC). Methods Quantitative real-time methylation-specific PCR (RT-MSP) and bisulfite sequencing were performed to evaluate the methylation statuses of cutaneous SCC and normal epithelial cell samples. Quantitative real-time reverse transcription-PCR was performed to evaluate RNA expression levels. Immunohistochemical analysis was performed to detect protein expression. Results G0S2 was suppressed in the five SCC cell lines with 5' G0S2 CGI methylation levels of nearly 100.0% and was expressed in the two normal cultured keratinocytes with methylation levels of almost 0.0%. G0S2 was re-expressed in SCC cell lines treated with a demethylating agent. The in vivo methylation levels of 5' G0S2 CGI as determined by RT-MSP varied widely (0.0% to 77.7%) in 17 cutaneous SCC samples and narrowly (0.1% to 7.3%) in 6 normal epidermis samples. Nine cutaneous SCC samples exhibited higher methylation levels than the highest methylation level (7.3%) of the 6 normal epidermis samples. Bisulfite sequencing showed dense methylated CpG sites within 5' G0S2 CGI in these highly methylated cutaneous SCC samples. The methylation levels of the cutaneous SCC samples did not correlate with any clinical parameters investigated or with histopathological grading. Conclusions G0S2 is silenced by aberrant DNA methylation in a subset of cutaneous SCCs.
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Affiliation(s)
- Yoshimasa Nobeyama
- Department of Dermatology, The Jikei University School of Medicine, Tokyo, Japan
- * E-mail:
| | - Yoshinori Watanabe
- Department of Dermatology, The Jikei University School of Medicine, Tokyo, Japan
| | - Hidemi Nakagawa
- Department of Dermatology, The Jikei University School of Medicine, Tokyo, Japan
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Toyokawa G, Kozuma Y, Matsubara T, Haratake N, Takamori S, Akamine T, Takada K, Katsura M, Shimokawa M, Shoji F, Okamoto T, Maehara Y. Prognostic impact of controlling nutritional status score in resected lung squamous cell carcinoma. J Thorac Dis 2017; 9:2942-2951. [PMID: 29221266 DOI: 10.21037/jtd.2017.07.108] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Background The preoperative immune-nutritional status has been shown to predict the postoperative prognosis in various types of cancer; however, the prognostic significance of the controlling nutritional status (CONUT) score in resected lung squamous cell carcinoma (SCC) has yet to be elucidated. Methods A total of 108 patients with resected lung SCC were analyzed for their clinicopathological factors, including the CONUT score, which can be calculated from the serum albumin, total cholesterol, and total peripheral lymphocyte count. The patients were divided into two groups: CONUT low (0 or 1) or high (≥2). Results Among 108 patients, 76 (70.4%) were CONUT low, while 32 (29.6%) were CONUT high. No significant association between the CONUT score and the clinicopathological factors was found. Patients with CONUT high exhibited significantly shorter disease-free and overall survivals (DFS and OS) than those with CONUT low (P=0.016 and P=0.006, respectively). Multivariate analyses showed that the CONUT score [hazard ratio (HR): 1.902, 95% confidence interval (CI): 1.045-3.373, P=0.036], age (HR: 2.286, 95% CI: 1.246-4.304, P=0.007), pathological stage (HR: 2.527, 95% CI: 1.391-4.644, P=0.002), and lymphatic invasion (HR: 2.321, 95% CI: 1.110-4.493, P=0.027) were independent prognostic factors for the DFS. Furthermore, in a multivariate analysis, the CONUT score (HR: 1.909, 95% CI: 0.902-3.860, P=0.081), age (HR: 2.455, 95% CI: 1.208-5.178, P=0.013), pathological stage (HR: 2.488, 95% CI: 1.201-5.306, P=0.014), and lymphatic invasion (HR: 3.409, 95% CI: 1.532-7.240, P=0.004) were shown to be independent prognostic factors for the OS. Conclusions The current study showed that the CONUT score was an independent prognostic factor for the DFS and OS in patients with resected lung SCC.
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Affiliation(s)
- Gouji Toyokawa
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yuka Kozuma
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Taichi Matsubara
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Naoki Haratake
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shinkichi Takamori
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takaki Akamine
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuki Takada
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masakazu Katsura
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | | | - Fumihiro Shoji
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tatsuro Okamoto
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshihiko Maehara
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Xu CW, Wang WX, Huang RF, He C, Liao XH, Zhu YC, Du KQ, Zhuang W, Chen YP, Chen G, Fang MY. Patient harboring a novel PIK3CA point mutation after acquired resistance to crizotinib in an adenocarcinoma with ROS1 rearrangement: A case report and literature review. Thorac Cancer 2017; 8:714-719. [PMID: 28845578 PMCID: PMC5668514 DOI: 10.1111/1759-7714.12496] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 07/24/2017] [Accepted: 07/24/2017] [Indexed: 01/21/2023] Open
Abstract
ROS1 rearrangement occurs in 1–2% of non‐small cell lung cancer (NSCLC) cases. These patients would benefit from treatment with the anaplastic lymphoma kinase inhibitor, crizotinib; however, resistance to crizotinib inevitably develops in such patients despite an initial response. The mechanism of acquired resistance to crizotinib in patients with NSCLC with ROS1 rearrangement has not yet been identified. Herein, we report a case of a 66‐year‐old woman diagnosed with adenocarcinoma. PCR revealed no EGFR or ALK mutations. After the patient underwent several rounds of chemotherapy, crizotinib was administered. The disease explosively progressed six months later. A novel PIK3CA gene point mutation (p.L531P) was detected by next generation sequencing. This case is the second report of bypass activation conferred crizotinib resistance in a patient with NSCLC with ROS1‐rearrangement, but is the first to confirm that activation of the mTOR signaling pathway leads to acquired crizotinib resistance.
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Affiliation(s)
- Chun-Wei Xu
- Department of Pathology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Wen-Xian Wang
- Department of Chemotherapy, Zhejiang Cancer Hospital, Hangzhou, China
| | - Rong-Fang Huang
- Department of Pathology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Cheng He
- Department of Pathology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Xing-Hui Liao
- Department of Tumor Molecular Laboratory, Zhejiang Rongjun Hospital, Jiaxing, China
| | - You-Cai Zhu
- Department of Thoracic Disease Center, Zhejiang Rongjun Hospital, Jiaxing, China
| | - Kai-Qi Du
- Department of Thoracic Disease Center, Zhejiang Rongjun Hospital, Jiaxing, China
| | - Wu Zhuang
- Department of Medical Thoracic Oncology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Yan-Ping Chen
- Department of Pathology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Gang Chen
- Department of Pathology, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Mei-Yu Fang
- Department of Comprehensive Medical Oncology, Zhejiang Cancer Hospital, Hangzhou, China
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Lallo A, Schenk MW, Frese KK, Blackhall F, Dive C. Circulating tumor cells and CDX models as a tool for preclinical drug development. Transl Lung Cancer Res 2017; 6:397-408. [PMID: 28904884 PMCID: PMC5583071 DOI: 10.21037/tlcr.2017.08.01] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 07/18/2017] [Indexed: 01/14/2023]
Abstract
Lung cancers are the main cause of cancer-related deaths worldwide. Efforts placed to improve the survival of lung cancer patients and untangle the complexity of this disease, have resulted in the generation of hundreds of lung cancer cell lines and several genetically engineered mouse models (GEMMs). Although these research tools have extended our knowledge of lung cancer, improvement in the clinical care of lung cancer patients have been limited overall, with measured optimism regarding initial responses to targeted therapies in stratified subgroups of patients. Patient-derived xenograft (PDX) models are beginning to assist 'personalized therapy' approaches particularly in non-small cell lung cancer (NSCLC) however biopsies of lung cancers to generate PDXs are not without challenges and risks to the patient. Liquid biopsies, on the other hand, are a rapid and non-invasive procedure allowing the collection of circulating tumor cells (CTCs) with a single 10 mL blood draw. These CTCs recapitulate the molecular heterogeneity of the corresponding tumors and, therefore, can be used as surrogates to study tumor biology and generate new patient-derived models. Here, we discuss the CTC-derived models that have been generated, most notably in small cell lung cancer (SCLC), highlighting challenges and opportunities related to these novel preclinical tools.
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Affiliation(s)
- Alice Lallo
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, UK
| | - Maximilian W. Schenk
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, UK
| | - Kristopher K. Frese
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, UK
| | - Fiona Blackhall
- Institute of Cancer Sciences, University of Manchester and Christie NHS Foundation Trust, Manchester, UK
| | - Caroline Dive
- Clinical and Experimental Pharmacology Group, Cancer Research UK Manchester Institute, University of Manchester, Manchester, UK
- Cancer Research UK Lung Cancer Centre of Excellence, Manchester, UK
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Vangimalla SS, Ganesan M, Kharbanda KK, Osna NA. Bifunctional Enzyme JMJD6 Contributes to Multiple Disease Pathogenesis: New Twist on the Old Story. Biomolecules 2017; 7:biom7020041. [PMID: 28587176 PMCID: PMC5485730 DOI: 10.3390/biom7020041] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 05/24/2017] [Accepted: 05/26/2017] [Indexed: 02/05/2023] Open
Abstract
Jumonji domain-containing protein 6 (JMJD6) is a non-heme Fe(II) 2-oxoglutarate (2OG)-dependent oxygenase with arginine demethylase and lysyl hydroxylase activities. Its initial discovery as a dispensable phosphatidylserine receptor (PSR) in the cell membrane of macrophages for phagocytosis was squashed by newer studies which revealed its nuclear localization and bifunctional enzymatic activity. Though its interaction with several nuclear and cytoplasmic target proteins has been demonstrated, the exact mechanisms and clinical significance of these various biologic interplays are not yet well established. Recent investigations have shed the light on the multiple pathways by which JMJD6 can regulate cell proliferation and cause tumorigenesis. Clinically, JMJD6 has been associated with more aggressive and metastatic disease, poorer prognosis, and lower overall survival rates-particularly in lung colon and oral cancers. JMJD6 is a novel biomarker for predicting future disease outcomes and is a target for new therapeutic treatments in future studies. Aberrant expression and dysregulation of JMJD6 are implicated in various other processes such as impaired T-cell proliferation and maturation, inoculation, and virulence of foot-and-mouth disease virus (FMDV), and impaired methylation of innate immunity factor. This article reviews the association of JMJD6 with various pathological processes-particularly, its role in tumorigenesis and virological interactions.
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Affiliation(s)
- Shiva Shankar Vangimalla
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, 4101 Woolworth Avenue, Omaha, NE 68105, USA.
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA.
| | - Murali Ganesan
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, 4101 Woolworth Avenue, Omaha, NE 68105, USA.
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA.
| | - Kusum K Kharbanda
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, 4101 Woolworth Avenue, Omaha, NE 68105, USA.
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA.
| | - Natalia A Osna
- Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, 4101 Woolworth Avenue, Omaha, NE 68105, USA.
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA.
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Lkb1 inactivation drives lung cancer lineage switching governed by Polycomb Repressive Complex 2. Nat Commun 2017; 8:14922. [PMID: 28387316 PMCID: PMC5385585 DOI: 10.1038/ncomms14922] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Accepted: 02/09/2017] [Indexed: 02/07/2023] Open
Abstract
Adenosquamous lung tumours, which are extremely poor prognosis, may result from cellular plasticity. Here, we demonstrate lineage switching of KRAS+ lung adenocarcinomas (ADC) to squamous cell carcinoma (SCC) through deletion of Lkb1 (Stk11) in autochthonous and transplant models. Chromatin analysis reveals loss of H3K27me3 and gain of H3K27ac and H3K4me3 at squamous lineage genes, including Sox2, ΔNp63 and Ngfr. SCC lesions have higher levels of the H3K27 methyltransferase EZH2 than the ADC lesions, but there is a clear lack of the essential Polycomb Repressive Complex 2 (PRC2) subunit EED in the SCC lesions. The pattern of high EZH2, but low H3K27me3 mark, is also prevalent in human lung SCC and SCC regions within ADSCC tumours. Using FACS-isolated populations, we demonstrate that bronchioalveolar stem cells and club cells are the likely cells-of-origin for SCC transitioned tumours. These findings shed light on the epigenetics and cellular origins of lineage-specific lung tumours. The mechanisms that govern the transdifferentiation of lung adenocarcinomas (ADC) to squamous cell carcinoma (SCC) are not fully understood. Here, the authors show that EZH2 loss exacerbates the transdifferentiation of ADCs to SCCs as a result of chromatin changes that lead to expression of squamous differentiation genes.
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Noncanonical GLI1 signaling promotes stemness features and in vivo growth in lung adenocarcinoma. Oncogene 2017; 36:4641-4652. [PMID: 28368412 PMCID: PMC5558095 DOI: 10.1038/onc.2017.91] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 02/04/2017] [Accepted: 02/26/2017] [Indexed: 02/07/2023]
Abstract
Aberrant Hedgehog/GLI signaling has been implicated in a diverse spectrum of human cancers, but its role in lung adenocarcinoma (LAC) is still under debate. We show that the downstream effector of the Hedgehog pathway, GLI1, is expressed in 76% of LACs, but in roughly half of these tumors, the canonical pathway activator, Smoothened, is expressed at low levels, possibly owing to epigenetic silencing. In LAC cells including the cancer stem cell compartment, we show that GLI1 is activated noncanonically by MAPK/ERK signaling. Different mechanisms can trigger the MAPK/ERK/GLI1 cascade including KRAS mutation and stimulation of NRP2 by VEGF produced by the cancer cells themselves in an autocrine loop or by stromal cells as paracrine cross talk. Suppression of GLI1, by silencing or drug-mediated, inhibits LAC cells proliferation, attenuates their stemness and increases their susceptibility to apoptosis in vitro and in vivo. These findings provide insight into the growth of LACs and point to GLI1 as a downstream effector for oncogenic pathways. Thus, strategies involving direct inhibition of GLI1 may be useful in the treatment of LACs.
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Sakabe T, Azumi J, Haruki T, Umekita Y, Nakamura H, Shiota G. CD117 expression is a predictive marker for poor prognosis in patients with non-small cell lung cancer. Oncol Lett 2017; 13:3703-3708. [PMID: 28521472 DOI: 10.3892/ol.2017.5925] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Accepted: 01/12/2017] [Indexed: 12/17/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) accounts for >85% of incidences of lung cancer, for which the predicted 5-year survival rates are low and recurrence rates remain high. Although it has been reported that the patients with SCLC cells that possess the cluster of differentiation (CD) 117 marker exhibited poor prognosis and poor response to chemotherapy, no studies concerning the association of CD117 expression with prognosis of the patients with NSCLC have been reported. An in vitro study reportedly revealed that CD117-positive cell populations in NSCLC cell lines exhibited cancer stem cell (CSC) phenotypes including self-renewal and chemoresistance. Therefore, the present study hypothesized that if CD117-positive cells are CSC-like cells, CD117 positivity may be associated with the prognosis of patients with NSCLC. To confirm this hypothesis, the association between CD117 expression in patients with NSCLC and clinicopathological characteristics was investigated. CD177 expression was examined by immunohistochemistry in 99 patients with NSCLC who underwent curative surgical resection. Tumor samples in the present study included 73 samples of adenocarcinoma and 26 of squamous carcinoma. The associations of CD177 expression with clinicopathological features and prognosis were examined. The lymph node metastasis and rates of recurrence were significantly associated with overall survival rates through multivariate analysis (P<0.001 and P<0.001), respectively. A Kaplan-Meier analysis for relapse-free survival and the log-rank test revealed that the patients with CD117-positive cell populations exhibited shorter relapse-free survival rates compared with patients whose cells were CD117-negative (P=0.014). The multivariate analysis demonstrated that venous invasion, pathological stage, and CD117 expression were independent prognostic parameters for relapse-free survival in patients with NSCLC (P=0.001, P=0.001 and P=0.002), respectively. In conclusion, these data suggest that CD117 expression in NSCLC may serve as a useful marker for predicting the prognosis of patients with NSCLC.
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Affiliation(s)
- Tomohiko Sakabe
- Division of Molecular and Genetic Medicine, Department of Medicine and Regenerative Therapeutics, Graduate School of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan.,Division of Organ Pathology, Department of Pathology, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan
| | - Junya Azumi
- Division of Molecular and Genetic Medicine, Department of Medicine and Regenerative Therapeutics, Graduate School of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan
| | - Tomohiro Haruki
- Division of General Thoracic Surgery, Tottori University Hospital, Yonago, Tottori 683-8504, Japan
| | - Yoshihisa Umekita
- Division of Organ Pathology, Department of Pathology, Faculty of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan
| | - Hiroshige Nakamura
- Division of General Thoracic Surgery, Tottori University Hospital, Yonago, Tottori 683-8504, Japan
| | - Goshi Shiota
- Division of Molecular and Genetic Medicine, Department of Medicine and Regenerative Therapeutics, Graduate School of Medicine, Tottori University, Yonago, Tottori 683-8504, Japan
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Cheng Z, Bai Y, Wang P, Wu Z, Zhou L, Zhong M, Jin Q, Zhao J, Mao H, Mao H. Identification of long noncoding RNAs for the detection of early stage lung squamous cell carcinoma by microarray analysis. Oncotarget 2017; 8:13329-13337. [PMID: 28076325 PMCID: PMC5355100 DOI: 10.18632/oncotarget.14522] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 12/27/2016] [Indexed: 12/30/2022] Open
Abstract
The aberrant expressions of long noncoding RNAs have been reported in numerous cancers, which have facilitated the cancer diagnosis. However, the expression profile of lncRNAs in early stage lung squamous cell carcinoma has not been well discussed. The present study aimed to examine the expression profile of lncRNAs in early stage lung squamous cell carcinoma and identify lncRNA biomarkers for diagnosis. Through high-throughput lncRNA microarray, we screened thousands of aberrantly expressed lncRNAs and mRNAs in early stage lung squamous cell carcinoma tissues compared to their corresponding adjacent nontumorous tissues. Bioinformatics analyses were used to investigate the functions of aberrantly expressed mRNAs and their associated lncRNAs. After that, in order to identify lncRNA biomarkers for early detection, candidate lncRNA biomarkers were selected based on our established filtering pipeline and validated by real-time quantitative polymerase chain reaction on a total of 63 pairs of tumor samples. Five lncRNAs were finally identified which were able to distinguish early stage tumor and normal samples with high sensitivity (92%) and specificity (83%). These results imply that lncRNAs may be powerful biomarker for early diagnosis.
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Affiliation(s)
- Zule Cheng
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science, Shanghai 200050, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Yanan Bai
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science, Shanghai 200050, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Ping Wang
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science, Shanghai 200050, China
| | - Zhenhua Wu
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science, Shanghai 200050, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Lin Zhou
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science, Shanghai 200050, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Ming Zhong
- Departments of Anesthesiology and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Qinghui Jin
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science, Shanghai 200050, China
| | - Jianlong Zhao
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science, Shanghai 200050, China
| | - Hailei Mao
- Departments of Anesthesiology and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Hongju Mao
- State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science, Shanghai 200050, China
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The Hedgehog Signaling Networks in Lung Cancer: The Mechanisms and Roles in Tumor Progression and Implications for Cancer Therapy. BIOMED RESEARCH INTERNATIONAL 2016; 2016:7969286. [PMID: 28105432 PMCID: PMC5220431 DOI: 10.1155/2016/7969286] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 11/23/2016] [Indexed: 02/07/2023]
Abstract
Lung cancer is the most common cause of cancer-related death worldwide and is classified into small cell lung cancer (SCLC) and non-small-cell lung cancer (NSCLC). Several gene mutations that contribute to aberrant cell proliferation have been identified in lung adenocarcinoma, a part of NSCLC. Various anticancer drugs that target these mutated molecules have been developed for NSCLC treatment. However, although molecularly targeted drugs are initially effective for patients, the 5-year survival rate remains low because of tumor relapse. Therefore, more effective drugs for lung cancer treatment should be developed. The hedgehog (HH) signaling pathway contributes to organ development and stem cell maintenance, and aberrant activation of this signaling pathway is observed in various cancers including lung cancer. In lung cancer, HH signaling pathway upregulates cancer cell proliferation and maintains cancer stem cells as well as cancer-associated fibroblasts (CAFs). Furthermore, physical contact between CAFs and NSCLC cells induces HH signaling pathway activation in NSCLC cells to enhance their metastatic potential. Therefore, HH signaling pathway inhibitors could be a useful option for lung cancer therapy.
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Broodman I, Lindemans J, van Sten J, Bischoff R, Luider T. Serum Protein Markers for the Early Detection of Lung Cancer: A Focus on Autoantibodies. J Proteome Res 2016; 16:3-13. [DOI: 10.1021/acs.jproteome.6b00559] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
| | | | | | - Rainer Bischoff
- Analytical
Biochemistry, Department of Pharmacy, University of Groningen, Antonius
Deusinglaan 1, 9713 AV Groningen, The Netherlands
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Abstract
Despite great progress in research and treatment options, lung cancer remains the leading cause of cancer-related deaths worldwide. Oncogenic driver mutations in protein-encoding genes were defined and allow for personalized therapies based on genetic diagnoses. Nonetheless, diagnosis of lung cancer mostly occurs at late stages, and chronic treatment is followed by a fast onset of chemoresistance. Hence, there is an urgent need for reliable biomarkers and alternative treatment options. With the era of whole genome and transcriptome sequencing technologies, long noncoding RNAs emerged as a novel class of versatile, functional RNA molecules. Although for most of them the mechanism of action remains to be defined, accumulating evidence confirms their involvement in various aspects of lung tumorigenesis. They are functional on the epigenetic, transcriptional, and posttranscriptional level and are regulators of pathophysiological key pathways including cell growth, apoptosis, and metastasis. Long noncoding RNAs are gaining increasing attention as potential biomarkers and a novel class of druggable molecules. It has become clear that we are only beginning to understand the complexity of tumorigenic processes. The clinical integration of long noncoding RNAs in terms of prognostic and predictive biomarker signatures and additional cancer targets could provide a chance to increase the therapeutic benefit. Here, we review the current knowledge about the expression, regulation, biological function, and clinical relevance of long noncoding RNAs in lung cancer.
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Affiliation(s)
- Anna Roth
- Division of RNA Biology and Cancer, German Cancer Research Center (DKFZ) and Institute of Pathology, University Hospital Heidelberg, Im Neuenheimer Feld 280 (B150), 69120, Heidelberg, Germany
| | - Sven Diederichs
- Division of RNA Biology and Cancer, German Cancer Research Center (DKFZ) and Institute of Pathology, University Hospital Heidelberg, Im Neuenheimer Feld 280 (B150), 69120, Heidelberg, Germany.
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Abstract
Lung cancer is a heterogeneous disease, and there is a lack of adequate biomarkers for diagnosis. Long noncoding RNAs (lncRNAs) are emerging as an important set of molecules because of their roles in various key pathophysiological pathways, including cell growth, apoptosis, and metastasis. We review the current knowledge of the lncRNAs in lung cancer. In-depth analyses of lncRNAs in lung cancer have increased the number of potential effective biomarkers, thus providing options to increase the therapeutic benefit. In this review, we summarize the functions, mechanisms, and regulatory networks of lncRNAs in lung cancer, providing a basis for further research in this field.
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Affiliation(s)
- Zhenzi Peng
- Institute of Medical Sciences, Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Chunfang Zhang
- Institute of Medical Sciences, Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Chaojun Duan
- Institute of Medical Sciences, Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, People’s Republic of China
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Müller CB, De Bastiani MA, Becker M, França FS, Branco MA, Castro MAA, Klamt F. Potential crosstalk between cofilin-1 and EGFR pathways in cisplatin resistance of non-small-cell lung cancer. Oncotarget 2016; 6:3531-9. [PMID: 25784483 PMCID: PMC4414134 DOI: 10.18632/oncotarget.3471] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 01/22/2015] [Indexed: 11/25/2022] Open
Abstract
Current challenge in oncology is to establish the concept of personalized medicine in clinical practice. In this context, non-small-cell lung cancer (NSCLC) presents clinical, histological and molecular heterogeneity, being one of the most genomically diverse of all cancers. Recent advances added Epidermal Growth Factor Receptor (EGFR) as a predictive biomarker for patients with advanced NSCLC. In tumors with activating EGFR mutations, tyrosine kinase inhibitors (TKI) are indicated as first-line treatment, although restricted to a very small target population. In this context, cofilin-1 (a cytosolic protein involved with actin dynamics) has been widely studied as a biomarker of an aggressive phenotype in tumors, and overexpression of cofilin-1 is associated with cisplatin resistance and poor prognosis in NSCLC. Here, we gather information about the predictive potential of cofilin-1 and reviewed the crosstalk between cofilin-1/EGFR pathways. We aimed to highlight new perspectives of how these interactions might affect cisplatin resistance in NSCLC. We propose that cofilin-1 quantification in clinical samples in combination with presence/absence of EGFR mutation could be used to select patients that would benefit from TKI's treatment. This information is of paramount importance and could result in a possibility of guiding more effective treatments to NSCLC patients.
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Affiliation(s)
- Carolina Beatriz Müller
- Laboratory of Cellular Biochemistry, Department of Biochemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre (RS), Brazil.,National Institutes for Science & Technology-Translational Medicine (INCT-TM), Porto Alegre (RS), Brazil
| | - Marco Antônio De Bastiani
- Laboratory of Cellular Biochemistry, Department of Biochemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre (RS), Brazil.,National Institutes for Science & Technology-Translational Medicine (INCT-TM), Porto Alegre (RS), Brazil
| | - Matheus Becker
- Laboratory of Cellular Biochemistry, Department of Biochemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre (RS), Brazil.,National Institutes for Science & Technology-Translational Medicine (INCT-TM), Porto Alegre (RS), Brazil
| | - Fernanda Stapenhorst França
- Laboratory of Cellular Biochemistry, Department of Biochemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre (RS), Brazil.,National Institutes for Science & Technology-Translational Medicine (INCT-TM), Porto Alegre (RS), Brazil
| | - Mariane Araujo Branco
- Laboratory of Cellular Biochemistry, Department of Biochemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre (RS), Brazil.,National Institutes for Science & Technology-Translational Medicine (INCT-TM), Porto Alegre (RS), Brazil
| | | | - Fabio Klamt
- Laboratory of Cellular Biochemistry, Department of Biochemistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre (RS), Brazil.,National Institutes for Science & Technology-Translational Medicine (INCT-TM), Porto Alegre (RS), Brazil
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65
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Kanthala S, Pallerla S, Jois S. Current and future targeted therapies for non-small-cell lung cancers with aberrant EGF receptors. Future Oncol 2015; 11:865-78. [PMID: 25757687 DOI: 10.2217/fon.14.312] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Expression of the EGF receptors (EGFRs) is abnormally high in many types of cancer, including 25% of lung cancers. Successful treatments target mutations in the EGFR tyrosine kinase domain with EGFR tyrosine kinase inhibitors (TKIs). However, almost all patients develop resistance to this treatment, and acquired resistance to first-generation TKI has prompted the clinical development of a second generation of EGFR TKI. Because of the development of resistance to treatment of TKIs, there is a need to collect genomic information about EGFR levels in non-small-cell lung cancer patients. Herein, we focus on current molecular targets that have therapies available as well as other targets for which therapies will be available in the near future.
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Affiliation(s)
- Shanthi Kanthala
- Basic Pharmaceutical Sciences, School of Pharmacy, University of Louisiana at Monroe, Monroe, LA 71201, USA
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66
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microRNA classifiers are powerful diagnostic/prognostic tools in ALK-, EGFR-, and KRAS-driven lung cancers. Proc Natl Acad Sci U S A 2015; 112:14924-9. [PMID: 26627242 DOI: 10.1073/pnas.1520329112] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
microRNAs (miRNAs) can act as oncosuppressors or oncogenes, induce chemoresistance or chemosensitivity, and are major posttranscriptional gene regulators. Anaplastic lymphoma kinase (ALK), EGF receptor (EGFR), and V-Ki-ras2 Kirsten rat sarcoma viral oncogene homolog (KRAS) are major drivers of non-small cell lung cancer (NSCLC). The aim of this study was to assess the miRNA profiles of NSCLCs driven by translocated ALK, mutant EGFR, or mutant KRAS to find driver-specific diagnostic and prognostic miRNA signatures. A total of 85 formalin-fixed, paraffin-embedded samples were considered: 67 primary NSCLCs and 18 matched normal lung tissues. Of the 67 primary NSCLCs, 17 were echinoderm microtubule-associated protein-like 4-ALK translocated (ALK(+)) lung cancers; the remaining 50 were not (ALK(-)). Of the 50 ALK(-) primary NSCLCs, 24 were EGFR and KRAS mutation-negative (i.e., WT; triple negative); 11 were mutant EGFR (EGFR(+)), and 15 were mutant KRAS (KRAS(+)). We developed a diagnostic classifier that shows how miR-1253, miR-504, and miR-26a-5p expression levels can classify NSCLCs as ALK-translocated, mutant EGFR, or mutant KRAS versus mutation-free. We also generated a prognostic classifier based on miR-769-5p and Let-7d-5p expression levels that can predict overall survival. This classifier showed better performance than the commonly used classifiers based on mutational status. Although it has several limitations, this study shows that miRNA signatures and classifiers have great potential as powerful, cost-effective next-generation tools to improve and complement current genetic tests. Further studies of these miRNAs can help define their roles in NSCLC biology and in identifying best-performing chemotherapy regimens.
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67
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Clemente-Vicario F, Alvarez CE, Rowell JL, Roy S, London CA, Kisseberth WC, Lorch G. Human Genetic Relevance and Potent Antitumor Activity of Heat Shock Protein 90 Inhibition in Canine Lung Adenocarcinoma Cell Lines. PLoS One 2015; 10:e0142007. [PMID: 26560147 PMCID: PMC4641597 DOI: 10.1371/journal.pone.0142007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 10/15/2015] [Indexed: 12/22/2022] Open
Abstract
Background It has been an open question how similar human and canine lung cancers are. This has major implications in availability of human treatments for dogs and in establishing translational models to test new therapies in pet dogs. The prognosis for canine advanced lung cancer is poor and new treatments are needed. Heat shock protein 90 (HSP90) is an ATPase-dependent molecular chaperone ubiquitously expressed in eukaryotic cells. HSP90 is essential for posttranslational conformational maturation and stability of client proteins including protein kinases and transcription factors, many of which are important for the proliferation and survival of cancer cells. We investigated the activity of STA-1474, a HSP90 inhibitor, in two canine lung cancer cell lines, BACA and CLAC. Results Comparative genomic hybridization analysis of both cell lines revealed genetic relevance to human non-small cell lung cancer. STA-1474 inhibited growth and induced apoptosis of both cell lines in a dose- and time-dependent manner. The ICs50 after 72 h treatment with STA-1474 were 0.08 and 0.11 μM for BACA and CLAC, respectively. When grown as spheroids, the IC50 of STA-1474 for BACA cells was approximately two-fold higher than when grown as a monolayer (0.348 μM vs. 0.168 μM), whereas CLAC spheroids were relatively drug resistant. Treatment of tumor-stromal fibroblasts with STA-1474 resulted in a dose-dependent decrease in their relative cell viability with a low IC50 of 0.28 μM. Conclusions Here we first established that lung adenocarcinoma in people and dogs are genetically and biochemically similar. STA1474 demonstrated biological activity in both canine lung cancer cell lines and tumor-stromal fibroblasts. As significant decreases in relative cell viability can be achieved with nanomolar concentrations of STA-1474, investigation into the clinical efficacy of this drug in canine lung cancer patients is warranted.
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Affiliation(s)
- Francisco Clemente-Vicario
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, United States of America
| | - Carlos E. Alvarez
- Center for Molecular and Human Genetics, The Research Institute at Nationwide Children’s Hospital, Columbus, Ohio, United States of America
| | - Jennie L. Rowell
- College of Nursing, The Ohio State University, Columbus, Ohio, United States of America
| | - Satavisha Roy
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, United States of America
| | - Cheryl A. London
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, United States of America
| | - William C. Kisseberth
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, United States of America
| | - Gwendolen Lorch
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio, United States of America
- * E-mail:
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68
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Local and systemic XAGE-1b-specific immunity in patients with lung adenocarcinoma. Cancer Immunol Immunother 2015; 64:1109-21. [PMID: 26025564 PMCID: PMC4540777 DOI: 10.1007/s00262-015-1716-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 05/09/2015] [Indexed: 01/06/2023]
Abstract
XAGE-1b is a cancer/testis antigen aberrantly expressed in pulmonary adenocarcinoma. Systemic antibody and T cell responses have been demonstrated in adenocarcinoma patients, but so far, local antigen-specific immunity has not been reported. In this study, XAGE-1b expression by tumor cells as well as the presence of systemic and/or local XAGE-1b-specific immunity was assessed in peripheral blood, tumor tissue and tumor-draining lymph nodes of Caucasian patients with pulmonary adenocarcinoma. XAGE-1b protein expression was detected in 43.6% (17 of 39) of patients when at least two different parts of a resected tumor were assessed. In 20 patients, analysis of T cells isolated and expanded from the primary tumor and its draining lymph node demonstrated XAGE-1b-specific responses in two patients. XAGE-1b-specific immunoglobulin G antibodies were found in 3 of 40 patients. These three antibody-positive patients had also mounted a systemic T cell response to XAGE-1b, measured by proliferation, cytokine production and expression of T cell activation markers on peripheral blood mononuclear cells. The population of XAGE-1b-specific T cells comprised both CD4+ and CD8+ T cells secreting both type I and II cytokines. Epitope mapping showed that T cells predominantly targeted the N-terminal part of the XAGE-1b protein, while the B cell response was directed against the C-terminal domain. Our study for the first time provides evidence for the presence of XAGE-1b-specific T cells within adenocarcinoma tissue, which supports the concept that XAGE-1b acts as a genuine tumor antigen and, therefore, might form an attractive target for a vaccine-based approach of immunotherapy.
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69
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Jiang T, Zhou C. [Treatment of patients with ALK gene rearranged non-small cell lung cancer
after resistance to crizotinib]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2015; 18:69-74. [PMID: 25676398 PMCID: PMC5999845 DOI: 10.3779/j.issn.1009-3419.2015.02.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
肺癌是全球发病率和致死率最高的疾病之一。非小细胞肺癌(non-small cell lung cancer, NSCLC)是肺癌最为常见的组织学类型。近些年,分子生物学的发展让我们对NSCLC的认识从组织水平深入到分子水平。表皮生长因子受体(epidermal growth factor receptor, EGFR)基因突变和间变性淋巴瘤激酶(anaplastic lymphoma kinase, ALK)融合基因是NSCLC患者最为重要的两个肿瘤驱动基因。针对它们的酪氨酸激酶抑制剂(tyrosine kinase inhibitors, TKIs)显著改善了带有这类分子特征的NSCLC患者的生存。不幸的是,目前几乎所有针对这两种突变的初始靶向治疗都会不可避免地出现耐药问题。有关EGFR-TKIs的耐药机制及其应对策略已经有很多文章进行阐述,而对于ALK TKIs治疗后出现耐药问题的机制和相应的治疗策略还未曾有过详细的综述。因此,本文针对一代ALK TKI(克唑替尼)治疗ALK融合基因阳性的NSCLC患者(ALK+ NSCLC)后引起耐药问题的机制和有关后续治疗策略做一综述。
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Affiliation(s)
- Tao Jiang
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Shanghai 200433, China
| | - Caicun Zhou
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Shanghai 200433, China
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70
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Abstract
Non-small-cell lung cancers (NSCLCs), the most common lung cancers, are known to have diverse pathological features. During the past decade, in-depth analyses of lung cancer genomes and signalling pathways have further defined NSCLCs as a group of distinct diseases with genetic and cellular heterogeneity. Consequently, an impressive list of potential therapeutic targets was unveiled, drastically altering the clinical evaluation and treatment of patients. Many targeted therapies have been developed with compelling clinical proofs of concept; however, treatment responses are typically short-lived. Further studies of the tumour microenvironment have uncovered new possible avenues to control this deadly disease, including immunotherapy.
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Affiliation(s)
- Zhao Chen
- 1] Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02115, USA. [2]
| | - Christine M Fillmore
- 1] Stem Cell Program, Boston Children's Hospital, Boston, Massachusetts 02115, USA. [2] Harvard Stem Cell Institute, Cambridge, Massachusetts 02138, USA. [3] Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA. [4]
| | - Peter S Hammerman
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02115, USA
| | - Carla F Kim
- 1] Stem Cell Program, Boston Children's Hospital, Boston, Massachusetts 02115, USA. [2] Harvard Stem Cell Institute, Cambridge, Massachusetts 02138, USA. [3] Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Kwok-Kin Wong
- 1] Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02115, USA. [2] Department of Medicine, Harvard Medical School, Boston, Massachusetts 02115, USA. [3] Belfer Institute for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts 02115, USA
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71
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Chen Z, Fillmore CM, Hammerman PS, Kim CF, Wong KK. Non-small-cell lung cancers: a heterogeneous set of diseases. Nat Rev Cancer 2014; 14:535-46. [PMID: 25056707 PMCID: PMC5712844 DOI: 10.1038/nrc3775] [Citation(s) in RCA: 1252] [Impact Index Per Article: 125.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Non-small-cell lung cancers (NSCLCs), the most common lung cancers, are known to have diverse pathological features. During the past decade, in-depth analyses of lung cancer genomes and signalling pathways have further defined NSCLCs as a group of distinct diseases with genetic and cellular heterogeneity. Consequently, an impressive list of potential therapeutic targets was unveiled, drastically altering the clinical evaluation and treatment of patients. Many targeted therapies have been developed with compelling clinical proofs of concept; however, treatment responses are typically short-lived. Further studies of the tumour microenvironment have uncovered new possible avenues to control this deadly disease, including immunotherapy.
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Affiliation(s)
- Zhao Chen
- 1] Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02115, USA. [2]
| | - Christine M Fillmore
- 1] Stem Cell Program, Boston Children's Hospital, Boston, Massachusetts 02115, USA. [2] Harvard Stem Cell Institute, Cambridge, Massachusetts 02138, USA. [3] Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA. [4]
| | - Peter S Hammerman
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02115, USA
| | - Carla F Kim
- 1] Stem Cell Program, Boston Children's Hospital, Boston, Massachusetts 02115, USA. [2] Harvard Stem Cell Institute, Cambridge, Massachusetts 02138, USA. [3] Department of Genetics, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Kwok-Kin Wong
- 1] Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts 02115, USA. [2] Department of Medicine, Harvard Medical School, Boston, Massachusetts 02115, USA. [3] Belfer Institute for Applied Cancer Science, Dana-Farber Cancer Institute, Boston, Massachusetts 02115, USA
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Liu XD, Qu Y, Lu SS. Synchronous double primary lung cancer: a report of three cases. Chin J Cancer Res 2014; 26:E17-21. [PMID: 24653639 DOI: 10.3978/j.issn.1000-9604.2014.01.03] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 01/15/2014] [Indexed: 01/17/2023] Open
Abstract
The incidence of synchronous multiple primary lung cancers is on the rise due to improvements in computed tomography (CT) scanning and increasing use of positron emission tomography scanning and other diagnostic modalities. We report three cases of synchronous double primary lung cancer (DPLC) diagnosed based on CT findings, results of bronchoscopy and histological study. All patients had a long-term history of heavy smoking. Squamous cell carcinoma and small cell carcinoma were the most common histological types in these cases. DPLC frequently involves the upper lobes of left or right lung. Future molecular biological studies on DPLC should be warranted to shed light on the mechanisms underlying the pathogenesis of DPLC and the role of targeted therapy in this condition.
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Affiliation(s)
- Xue-Dong Liu
- Department of Respiratory Medicine, Qingdao Municipal Hospital, Qingdao 266011, China
| | - Yan Qu
- Department of Respiratory Medicine, Qingdao Municipal Hospital, Qingdao 266011, China
| | - Sen-Sen Lu
- Department of Respiratory Medicine, Qingdao Municipal Hospital, Qingdao 266011, China
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73
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Fong KM. Lung cancer. J Thorac Dis 2013; 5 Suppl 5:S452-3. [PMID: 24163738 PMCID: PMC3804880 DOI: 10.3978/j.issn.2072-1439.2013.10.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Kwun M Fong
- Department of Thoracic Medicine, The Prince Charles Hospital; Professor, School of Medicine, The University of Queensland; Director UQ Thoracic Research Ctr at TPCH; Rode Road, Chermside, Brisbane 4032, Australia
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