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Adenocarcinoma Lung

Shintaro Yokoyama, Tomoyuki Murakami, Hiroyuki Tao, Hideko Onoda, Akio Hara, Ryohei Miyazaki, Masashi Furukawa, Masataro Hayashi, Hidetoshi Inokawa, Kazunori Okabe, Yoshito Akagi
BACKGROUND: Tumor spread through air spaces (STAS) has recently been reported as a novel form of lung adenocarcinoma invasion that can negatively impact survival; however, its role in pleomorphic carcinoma remains unclear. This study aimed to characterize tumor STAS in pleomorphic carcinoma, including its association with clinicopathological features and prognosis. METHODS: Tumor specimens obtained from 35 consecutive patients with pleomorphic carcinoma who underwent surgical resection between 2009 and 2015 were reviewed...
June 19, 2018: Chest
Shicheng Li, Xiao Sun, Shuncheng Miao, Tong Lu, Yuanyong Wang, Jia Liu, Wenjie Jiao
BACKGROUND: Increasing evidence has demonstrated that circular RNAs (circRNAs) may play an important role in oncogenesis and tumor development; however, their role in lung adenocarcinoma (LUAD) remains unclear. We identified the differentially expressed circRNAs in LUAD and investigated the potential mechanisms for cancer progression. METHODS: We examined differentially expressed circRNAs in LUAD and paired normal tissues using downloaded circRNA microarrays from the Gene Expression Omnibus...
June 22, 2018: Thoracic Cancer
Ping Hu, Shengjian Zhang, Tong Wu, Dalong Ni, Wenpei Fan, Yan Zhu, Rong Qian, Jianlin Shi
Effectiveness of cancer therapy relies heavily on the efficient early diagnosis. Circulating tumor DNA (ctDNA) detection is one of the most clinically meaningful liquid biopsy approaches for the noninvasive cancer early diagnosis, which, unfortunately, cannot be applied as a routine diagnostic tool till a number of obstacles, for example, unsatisfactory specificity and sensitivity, and extremely high costs, are overcome. Here, the first paradigm of nanomaterial's application in the extremely specific, ultrasensitive, and yet economical ctDNA detections is reported based on a facile nanoparticle-coupling strategy without amplification, with which polymerase chain reaction (PCR)-introduced bias and other shortcomings are successfully circumvented...
June 22, 2018: Advanced Materials
Dakui Luo, Qi Liu, Wencheng Yu, Yanlei Ma, Ji Zhu, Peng Lian, Sanjun Cai, Qingguo Li, Xinxiang Li
PURPOSE: We investigated the prognostic value of distant metastasis sites among patients with metastatic colorectal cancer (CRC) and the significance of metastasectomy and resection of the primary CRC. METHODS: Between 2010 and 2014, patients diagnosed with metastatic colorectal adenocarcinoma were selected using the surveillance, epidemiology, and end results (SEER) database. The prognosis of these patients was compared according to the site of metastasis (liver, lung, bone, and brain)...
June 21, 2018: International Journal of Colorectal Disease
Ruirui Xu, Mingyan Xu, Yucai Fu, Xiaoling Deng, Hui Han, Xihe Chen, Wenjing He, Gengzhen Chen
Although it is difficult to detect αvβ6 integrin (αvβ6) in normal epithelia cells, its expression is upregulated during wound healing and carcinogenesis. Overexpression of αvβ6 has been demonstrated in epithelial cell carcinomas, such as adenocarcinoma of the colon and ovary. However, the expression of αvβ6 has not been reported in hepatocellular carcinoma (HCC). We previously indicated that LPA may induce αvβ6-mediated TGF-β1 signaling mechanisms during the pathogenesis of lung injury and fibrosis...
July 2018: Oncology Letters
Yongqing Liu, Laura Siles, Xiaoqin Lu, Kevin C Dean, Miriam Cuatrecasas, Antonio Postigo, Douglas C Dean
A model of K-Ras-initiated lung cancer was used to follow the transition of precancerous adenoma to adenocarcinoma. In hypoxic, Tgf-β1-rich interiors of adenomas, we show that adenoma cells divide asymmetrically to produce cancer-generating cells highlighted by epithelial mesenchymal transition and a CD44/Zeb1 loop. In these cells, Zeb1 represses the Smad inhibitor Zeb2/Sip1, causing Pten loss and launching Tgf-β1 signaling that drives nuclear translocation of Yap1. Surprisingly, the nuclear polarization of transcription factors during mitosis establishes parent and daughter fates prior to cytokinesis in sequential asymmetric divisions that generate cancer cells from precancerous lesions...
June 21, 2018: Nature Communications
Nadina Tinsley, Nikitha Yemula, Satheesh Ramalingam, Shyam Madathil
A 72-year-old man was brought to the emergency department with acute onset confusion and haemoptysis. Chest X-ray showed a possible lung mass, while CT head showed a fluid-filled, space-occupying lesion (SOL) in the right frontal lobe of the brain. MRI head indicated that this SOL had spilt its contents into the subarachnoid and intraventricular spaces. Due to a fluctuating Glasgow Coma Scale (GCS), the patient underwent emergency debulking. Macroscopically, a frail-walled cystic tumour filled with straw-coloured fluid was noted; histology confirmed metastasis from a primary lung adenocarcinoma...
June 21, 2018: BMJ Case Reports
Daniel E Foxler, Katherine S Bridge, John G Foster, Paul Grevitt, Sean Curry, Kunal M Shah, Kathryn M Davidson, Ai Nagano, Emanuela Gadaleta, Hefin I Rhys, Paul T Kennedy, Miguel A Hermida, Ting-Yu Chang, Peter E Shaw, Louise E Reynolds, Tristan R McKay, Hsei-Wei Wang, Paulo S Ribeiro, Michael J Plevin, Dimitris Lagos, Nicholas R Lemoine, Prabhakar Rajan, Trevor A Graham, Claude Chelala, Kairbaan M Hodivala-Dilke, Ian Spendlove, Tyson V Sharp
The adaptive cellular response to low oxygen tensions is mediated by the hypoxia-inducible factors (HIFs), a family of heterodimeric transcription factors composed of HIF-α and HIF-β subunits. Prolonged HIF expression is a key contributor to cellular transformation, tumorigenesis and metastasis. As such, HIF degradation under hypoxic conditions is an essential homeostatic and tumour-suppressive mechanism. LIMD1 complexes with PHD2 and VHL in physiological oxygen levels (normoxia) to facilitate proteasomal degradation of the HIF-α subunit...
June 21, 2018: EMBO Molecular Medicine
Jing Tang, Xu Yong Li, Jing Bo Liang, De Wu, Li Peng, Xiaobing Li
Apatinib is an oral TKI with anti-angiogenesis properties, and it is currently approved for the treatment of advanced gastric cancer in China. This agent has also been tested in other human solid tumors, including non-small cell lung cancer (NSCLC). Since the combination of chemotherapy and an anti-angiogenesis agent has been shown to be feasible strategy in NSCLC, it is conceivable that a similar approach combining apatinib with chemotherapy may yield clinical activity. With this in mind, we investigated the efficiency of apatinib in combination with pemetrexed or docetaxel in advanced NSCLC...
June 21, 2018: Oncology Research
Jingjing Huang, Tingting Weng, Junsuk Ko, Ning-Yuan Chen, Yu Xiang, Kelly Volcik, Leng Han, Michael R Blackburn, Xiang Lu
BACKGROUND: Non-small cell lung cancer (NSCLC) is a life-threatening disease that has a poor prognosis and low survival rate. Cleavage factor Im 25 (CFIm25) is a RNA-binding protein that if down-regulated causes 3'UTR shortening and thus promotes the transcript stability of target genes. It is not clear whether CFIm25 and alternative polyadenylation (APA) play a role during cancer development. The purpose of this study is to explore the role of CFIm25 in lung cancer cell proliferation...
June 18, 2018: Biochemical and Biophysical Research Communications
Joseph R Iacona, Nicholas J Monteleone, Carol S Lutz
Arachidonic acid (AA) can be converted into prostaglandins (PGs) or leukotrienes (LTs) by the enzymatic actions of cyclooxygenases (COX-1 and COX-2) or 5-lipoxygenase (5-LO), respectively. PGs and LTs are lipid signaling molecules that have been implicated in various diseases, including multiple cancers. 5-LO and its activating protein (FLAP) work together in the first two conversion steps of LT production. Previous work has suggested a role for LTs in cancer development and progression. MicroRNAs (miRNAs) are small RNA molecules that negatively regulate gene expression post-transcriptionally, and have previously been shown to be involved in cancer...
June 1, 2018: Oncotarget
Xiuzhi Zhou, Li Cai, Junjie Liu, Xiaomin Hua, Ying Zhang, Huilin Zhao, Bin Wang, Boqing Li, Pengzhou Gai
Epidermal growth factor receptor (EGFR) is an important gene in the development of lung adenocarcinoma. However, there is controversy regarding the association between EGFR mutations and survival time of patients with lung adenocarcinoma. In the present study, tissue specimens and clinical data were collected from 219 patients with lung adenocarcinoma who had not undergone prior radiotherapy or chemotherapy. EGFR mutations were detected using a fluorescence polymerase chain reaction method, and the association between EGFR mutations and clinicopathological characteristics was analyzed...
July 2018: Oncology Letters
Ling Hu, Jing Tang, Xiaohuan Huang, Tao Zhang, Xiaoling Feng
Hypoxia has been reported to be a critical microenvironmental factor that induces cancer metastasis and proliferation in gastric, liver and hepatic cancers; however, the underlying mechanisms of this are largely unknown. Long noncoding RNAs (lncRNAs) have emerged as crucial factors of several aspects of tumor malignancy, including tumorigenesis, metastasis and chemoresistance. However, the potential association of lncRNAs with hypoxia-induced cancer malignancy remains to be determined. In the present study, the differential expression of lncRNAs following the induction of hypoxia in A549 lung adenocarcinoma cells was analyzed reverse transcription-quantitative polymerase chain reaction...
July 2018: Oncology Letters
Jiasen Xie, Zishan Zhou, Shunchang Jiao, Xiaokun Li
A chimeric antigen receptor (CAR) is a type of fusion protein that comprises an antigen-recognition domain and signaling domains. In the present study, a programmed death-ligand 1 (PD-L1)-specific CAR, comprised of a single-chain variable fragment (scFv) derived from a monoclonal antibody, co-stimulatory domains of cluster of differentiation (CD) 28 and 4-1BB and a T-cell-activation domain derived from CD3ζ, was designed. The construction was cloned and packaged into the lentiviral vector pLVX. Flow cytometry confirmed that peripheral blood mononuclear cells were efficiently transduced and that the CAR was successfully expressed on T cells...
July 2018: Oncology Letters
Weiqing Li, Xugang Zhang, Zhitian Li, Fusheng Jiang, Hongwei Zhao, Bo Wei
The aim of the present study was to identify genes with similar function to that of matrix metalloproteinases (MMPs) in invasive lung adenocarcinoma (AC) and to screen the transcription factors that regulate MMPs. The gene expression dataset GSE2514, including 20 invasive lung AC samples and 19 adjacent normal lung samples, was downloaded from the Gene Expression Omnibus database. Differentially expressed genes (DEGs) were screened using the limma package in R. Genes with similar function to MMPs were identified by K-means clustering...
July 2018: Oncology Letters
Miaomiao Zhao, Songpo Wang, Qi Li, Qing Ji, Piaoting Guo, Xiaowei Liu
Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), a well-known lncRNA associated with numerous diseases, particularly cancer, has received increased attention. The expression of MALAT1 was determined to be upregulated in numerous types of tumors and MALAT1 exhibited effects on tumor cell proliferation, migration, invasion and apoptosis. The abnormal expression of MALAT1 was identified in almost in every organ of the digestive system. MALAT1 performed an important role in the pathological alterations of organs that are associated with sex hormones and several reproductive system cancers...
July 2018: Oncology Letters
Yue Hu, Noah Feit, Yanqin Huang, Wenhong Xu, Shu Zheng, Xiuzhen Li
The gastrointestinal (GI) tract is not a common site of metastasis in primary lung cancer. The aim of the present study was to reveal the clinical and prognostic characteristics of gastrointestinal metastases of lung cancer (GMLC). Information on 366 cases of GMLC was collected and factors that affect severe GI complications were analyzed. Univariate and multivariate survival analyses were performed using the Cox proportional hazards model. Of the cases analyzed, the small intestine (59.6%) and colorectum (25...
June 2018: Oncology Letters
Yuri Taniguchi, Hajime Horiuchi, Teppei Morikawa, Kazuhiro Usui
There are various mechanisms underlying the resistance of EGFR-mutant lung adenocarcinoma to epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs). We herein report a case of pulmonary adenocarcinoma with EGFR mutation (exon 19 deletion and T790M) that acquired resistance to osimertinib treatment because of transformation into small-cell lung carcinoma (SCLC). A 67-year-old ex-smoking woman was diagnosed with left upper lobe adenocarcinoma of clinical stage IIIA (cT2bN2M0). She was treated with chemoradiotherapy (cisplatin and vinorelbine plus radiation), gefitinib, cisplatin, and pemetrexed followed by pemetrexed maintenance therapy and erlotinib...
May 2018: Case Reports in Oncology
Chuanyin Li, Xiaona Wang, Yingfu Li, Xinwen Zhang, Mingbo Sun, Shuyuan Liu, Le Sun, Li Shi, Yufeng Yao
Background: Recent studies have revealed that the TERT gene plays crucial roles in cancer initiation and development. Genome-wide analysis studies and case-control studies have demonstrated that polymorphisms in the TERT gene are associated with various cancers. Materials and methods: In the current study, we analyzed the associations of eight single nucleotide polymorphisms (SNPs) in the TERT gene with non-small cell lung cancer (NSCLC) in a Chinese Han population...
2018: Cancer Management and Research
Kai Zhao, Zulei Li, Hui Tian
Introduction: Lung adenocarcinoma (LAC) accounts for more than a half of non-small cell lung cancer with high morbidity and mortality. Progression of treatment has not accelerated the improvement of its prognosis. Hence, it is an urgent need to develop novel biomarkers for its early diagnosis and treatment. Materials and methods: In this study, we proposed to identify LAC survival-related genes through comprehensive analysis of large-scale gene expression profiles...
2018: OncoTargets and Therapy
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