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https://www.readbyqxmd.com/read/30322114/identification-of-the-gene-expression-rules-that-define-the-subtypes-in-glioma
#1
Yu-Dong Cai, Shiqi Zhang, Yu-Hang Zhang, Xiaoyong Pan, KaiYan Feng, Lei Chen, Tao Huang, Xiangyin Kong
As a common brain cancer derived from glial cells, gliomas have three subtypes: glioblastoma, diffuse astrocytoma, and anaplastic astrocytoma. The subtypes have distinctive clinical features but are closely related to each other. A glioblastoma can be derived from the early stage of diffuse astrocytoma, which can be transformed into anaplastic astrocytoma. Due to the complexity of these dynamic processes, single-cell gene expression profiles are extremely helpful to understand what defines these subtypes. We analyzed the single-cell gene expression profiles of 5057 cells of anaplastic astrocytoma tissues, 261 cells of diffuse astrocytoma tissues, and 1023 cells of glioblastoma tissues with advanced machine learning methods...
October 13, 2018: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/30318526/spice-derived-phenolic-malabaricone-b-induces-mitochondrial-damage-in-lung-cancer-cells-via-a-p53-independent-pathway
#2
Mrityunjay Tyagi, Biswanath Maity, Bhaskar Saha, Ajay Kumar Bauri, Mahesh Subramanian, Subrata Chattopadhyay, Birija Sankar Patro
The spice-derived phenolic, malabaricone B (mal B) showed selective toxicity to human lung cancer (A549), malignant melanoma (A375) and T cell leukemia (Jurkat) cell lines, without showing toxicity to human normal intestinal (INT407), human kidney (HEK293) and lung fibroblast (WI-38) cells. Among the chosen cancer cell lines, mal B showed maximum cytotoxicity to the A549 cells (IC50 = 8.1 ± 1.0 μM), which was significantly better than that of curcumin (IC50 = 26.7 ± 3.1 μM). Further morphological studies by phase contrast microscopy and a clonogenic assay of the A549 cells revealed that mal B treatment increased the number of shrinking cells and also abolished the clonal proliferation of the cells...
October 15, 2018: Food & Function
https://www.readbyqxmd.com/read/30317801/-clinical-significance-and-correlation-of-ductular-reaction-in-hepatobiliary-diseases
#3
Y J Zheng, M X Pan, Y Wang
Ductular reaction is a kind of repair response to biliary and hepatocellular injury, and the pathological changes include lobular bile duct hyperplasia, matrix change and inflammatory cell infiltrations. In human liver, a ductular reaction originates from the activation and proliferation of hepatic progenitor cells. The activated hepatic progenitor cells, the intermediate hepatocytes and the reactive small bile duct cells together form the cell complex of ductular reaction, which has the dual characteristics of hepatobiliary system and co-expresses the hepatocyte and cholangiocyte antigen...
August 20, 2018: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/30317772/-the-occurrence-and-clinical-significance-of-contrast-agent-spillover-on-immediate-enhanced-ct-reexamination-after-radiofrequency-ablation-of-liver-cancer
#4
Q Z Gao, Z W Wang, J Pan, H F Shi, X B Zhang, Z Y Jin
Objective: To investigate the relationship between radiofrequency ablation immediately after enhanced CT scanning and the occurrence of contrast agent spillover and postoperative severe bleeding, and analyze the risk factors for hepatocellular carcinoma (HCC). Methods: A retrospective analysis of 199 patients with hepatocellular carcinoma who underwent radiofrequency ablation of liver cancer in our hospital from January 2016 to January 2017 was reviewed. A total of 232 cases were treated with ablation. The agent spillovers were divided into two groups, one for the contrast agent spill group and the other for the non-contrast agent spill group...
July 20, 2018: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/30317610/long-noncoding-rna-gastric-cancer-associated-transcript-3-plays-oncogenic-roles-in-glioma-through-sponging-mir-3127-5p
#5
Bailin Pan, Ming Zhao, Longbiao Xu
Evidence is emerging that long noncoding RNAs (lncRNAs) play vital roles in tumorigenesis. LncRNA gastric cancer-associated transcript 3 (GACAT3) is reported to participate in the development of breast cancer, colorectal cancer, nonsmall cell lung cancer, and gastric cancer. However, whether it is implicated in glioma has not been elucidated. Here, we found that GACAT3 level was aberrantly elevated in glioma tissues and cell lines. Higher GACAT3 expression predicted lower survival rate. Knockdown of GACAT3 suppressed the proliferation, colony formation, migration, and invasion but promoting apoptosis in glioma cells...
October 14, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/30317163/potential-regulatory-roles-of-micrornas-and-long-noncoding-rnas-in-anticancer-therapies
#6
REVIEW
Mengyan Xie, Ling Ma, Tongpeng Xu, Yutian Pan, Qiang Wang, Yutian Wei, Yongqian Shu
MicroRNAs and long noncoding RNAs have long been investigated due to their roles as diagnostic and prognostic biomarkers of cancers and regulators of tumorigenesis, and the potential regulatory roles of these molecules in anticancer therapies are attracting increasing interest as more in-depth studies are performed. The major clinical therapies for cancer include chemotherapy, immunotherapy, and targeted molecular therapy. MicroRNAs and long noncoding RNAs function through various mechanisms in these approaches, and the mechanisms involve direct targeting of immune checkpoints, cooperation with exosomes in the tumor microenvironment, and alteration of drug resistance through regulation of different signaling pathways...
September 1, 2018: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/30316904/sharp-ph-sensitive-amphiphilic-polypeptide-macrophotosensitizer-for-near-infrared-imaging-guided-photodynamic-therapy
#7
Pan Yuan, Zheng Ruan, Tuanwei Li, Youliang Tian, Quan Cheng, Lifeng Yan
Tumor environmental sensitive polypeptide integrated photosensitizers is a platform for imaging-guided photodynamic therapy (PDT). However, the photosensitizer leakage during blood circulation, poor accumulation in tumor tissue and inferior quantum yield of singlet oxygen are still challenges. Herein, NHS-active boron-dipyrromethene derivative with bromine substituted NHS-BODIPY-Br2 was first synthesized, which possessed high singlet oxygen generation efficiency and near infrared (NIR) fluorescence, and then it was conjugated to a sharp pH (6...
October 11, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/30311121/comparison-of-hypocrellin-b-mediated-sonodynamic-responsiveness-between-sensitive-and-multidrug-resistant-human-gastric-cancer-cell-lines
#8
Yichen Liu, Hong Bai, Haiping Wang, Xiaobing Wang, Quanhong Liu, Kun Zhang, Pan Wang
OBJECTIVES: The aim of this study was to compare the different responses to hypocrellin B (HB)-mediated sonodynamic treatment between human gastric adenocarcinoma cell line SGC7901 and SGC7901/ADR. METHODS: Tumor cells in culture dishes (35-mm diameter) were exposed to planar ultrasound at an intensity of 0.5 W/cm2 for 60 s combined with/without 2.5 μM HB. Cell viability was determined by MTT and Guava ViaCount assay. Production of reactive oxygen species (ROS) and destabilization of the mitochondrial membrane potential were assessed by flow cytometry...
October 11, 2018: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/30310501/weekly-versus-triweekly-cisplatin-plus-intensity-modulated-radiotherapy-in-locally-advanced-nasopharyngeal-carcinoma-a-propensity-score-analysis-with-a-large-cohort
#9
Qian Zhu, Hao Hu, Lin-Quan Tang, Rui You, Jing-Jing Zhao, De-Sheng Weng, Qiu-Zhong Pan, Chang-Long Chen, Zi-Qi Zhou, Yan Tang, Jian-Chuan Xia
Purpose : To directly compare the efficacy and acute toxicities of intensity-modulated radiotherapy (IMRT) concurrent with weekly cisplatin (40 mg/m2 ) to high-dose concurrent cisplatin (100 mg/m2 ) at three-week intervals. Materials and Methods : A total of 3,799 patients diagnosed with locally advanced nasopharyngeal carcinoma (NPC) at Sun Yat-Sen University Cancer Center between January 2010 and December 2013 were retrospectively reviewed. Propensity score analysis was conducted to balance the baseline characteristics between the groups, which allowed us to draw reliable conclusions...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/30309915/pan-tumor-genomic-biomarkers-for-pd-1-checkpoint-blockade-based-immunotherapy
#10
Razvan Cristescu, Robin Mogg, Mark Ayers, Andrew Albright, Erin Murphy, Jennifer Yearley, Xinwei Sher, Xiao Qiao Liu, Hongchao Lu, Michael Nebozhyn, Chunsheng Zhang, Jared K Lunceford, Andrew Joe, Jonathan Cheng, Andrea L Webber, Nageatte Ibrahim, Elizabeth R Plimack, Patrick A Ott, Tanguy Y Seiwert, Antoni Ribas, Terrill K McClanahan, Joanne E Tomassini, Andrey Loboda, David Kaufman
Programmed cell death protein-1 (PD-1) and programmed cell death ligand-1 (PD-L1) checkpoint blockade immunotherapy elicits durable antitumor effects in multiple cancers, yet not all patients respond. We report the evaluation of >300 patient samples across 22 tumor types from four KEYNOTE clinical trials. Tumor mutational burden (TMB) and a T cell-inflamed gene expression profile (GEP) exhibited joint predictive utility in identifying responders and nonresponders to the PD-1 antibody pembrolizumab. TMB and GEP were independently predictive of response and demonstrated low correlation, suggesting that they capture distinct features of neoantigenicity and T cell activation...
October 12, 2018: Science
https://www.readbyqxmd.com/read/30309427/-analysis-of-the-incidence-of-lower-extremity-venous-thrombosis-and-its-related-risk-factors-in-admitted-patients-with-lung-cancer
#11
Hui Du, Honglin Zhao, Mei Li, Huihui Ji, Fan Ren, Pan Wang, Xin Li, Ming Dong, Rehman Dawar, Gang Chen, Jun Chen
BACKGROUND: Venous thromboembolism (VTE) is a recognized complication in lung cancer patients with higher morbidity and mortality. The purpose of this study is to determine the incidence of lower extremity venous thrombosis (LEDVT) in lung cancer patients and to reveal the risk factors for LEDVT during admission in our center. METHODS: We first connected 231 patients with lung cancer admitted to the Department of Lung Cancer Surgery, Tianjin Medical University General Hospital from July 2017 to December 2017...
October 20, 2018: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/30308902/vehicular-contribution-of-pahs-in-size-dependent-road-dust-a-source-apportionment-by-pca-mlr-pmf-and-unmix-receptor-models
#12
Jin Zhang, Ruifei Li, Xiaoying Zhang, Yun Bai, Pan Cao, Pei Hua
This study focuses on the source apportionments of polycyclic aromatic hydrocarbons (PAHs) in road dust (RD) with four size fractions through three receptor models of principal component analysis with multiple linear regression (PCA-MLR), positive matrix factorization (PMF) and Unmix. The concentrations of total PAHs range from 0.45 to 2.03μgg-1 . Results show that the concentrations of PAHs increased with a decreasing size fraction. Similar potential sources to PAHs in RD were extracted by three models with a little difference in numbers and percent load contributions of each identified sources...
February 1, 2019: Science of the Total Environment
https://www.readbyqxmd.com/read/30307989/the-arginase-inhibitor-n%C3%AF-hydroxy-nor-arginine-nor-noha-induces-apoptosis-in-leukemic-cells-specifically-under-hypoxic-conditions-but-crispr-cas9-excludes-arginase-2-arg2-as-the-functional-target
#13
King Pan Ng, Aditi Manjeri, Lin Ming Lee, Zhu En Chan, Chin Yee Tan, Qiancheng Darren Tan, A'Qilah Majeed, Kian Leong Lee, Charles Chuah, Toshio Suda, S Tiong Ong
Cancer cells, including in chronic myeloid leukemia (CML), depend on the hypoxic response to persist in hosts and evade therapy. Accordingly, there is significant interest in drugging cancer-specific hypoxic responses. However, a major challenge in leukemia is identifying differential and druggable hypoxic responses between leukemic and normal cells. Previously, we found that arginase 2 (ARG2), an enzyme of the urea cycle, is overexpressed in CML but not normal progenitors. ARG2 is a target of the hypoxia inducible factors (HIF1-α and HIF2-α), and is required for the generation of polyamines which are required for cell growth...
2018: PloS One
https://www.readbyqxmd.com/read/30307719/metformin-synergistically-enhances-the-antitumor-activity-of-the-third-generation-egfr-tki-co-1686-in-lung-cancer-cells-through-suppressing-nf-%C3%AE%C2%BAb-signaling
#14
Yong-Hong Pan, Cai-Yu Lin, Cong-Hua Lu, Li Li, Yu-Bo Wang, Heng-Yi Chen, Yong He
PURPOSE: Third-generation irreversible epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKI), rociletinib(CO-1686), is great efficacy against EGFR-mutated patients bearing the T790M resistance mutation. However, acquired resistance may emerge. There is a need to characterize acquired resistance mechanism(s) and to devise ways to overcome CO-1686 resistance. EXPERIMENTAL DESIGN: MTT assay, ki67 incorporation assay, transwell assay and TUNEL assay were employed to analyze the effects of metformin to reverse CO-1686 resistance in vitro...
October 11, 2018: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/30305607/dna-methylation-mediated-silencing-of-mir-486-5p-promotes-colorectal-cancer-proliferation-and-migration-through-activation-of-plagl2-igf2-%C3%AE-catenin-signal-pathways
#15
Xiangxiang Liu, Xiaoxiang Chen, Kaixuan Zeng, Mu Xu, Bangshun He, Yuqin Pan, Huiling Sun, Bei Pan, Xueni Xu, Tao Xu, Xiuxiu Hu, Shukui Wang
As one of the most common cancers worldwide, colorectal cancer (CRC) causes a large number of mortality annually. Aberrant expression of microRNAs (miRNAs) is significantly associated with the initiation and development of CRC. Further investigations regarding the regulatory mechanism of miRNAs is warranted. In this study, we discovered that miR-486-5p was remarkably downregulated in CRC, which partially results from higher DNA methylation in the promoter region detected by using methylation-specific PCR, bisulfite sequencing PCR, and DNA demethylation treatment...
October 10, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/30305026/global-identification-and-characterization-of-lncrnas-that-control-inflammation-in-malignant-cholangiocytes
#16
Bo-Wei Han, Hua Ye, Pan-Pan Wei, Bo He, Cai Han, Zhen-Hua Chen, Yue-Qin Chen, Wen-Tao Wang
BACKGROUND: Long noncoding RNAs (lncRNAs) are known to play important roles in different cell contexts, including cancers. However, little is known about lncRNAs in cholangiocarcinoma (CCA), a cholangiocyte malignancy with poor prognosis, and associated with chronic inflammation and damage to the biliary epithelium. This study determined whether lncRNAs were dysregulated and participated in disease diagnosis or pivotal inflammation pathways through a genome-wide lncRNA screening and functional analysis...
October 11, 2018: BMC Genomics
https://www.readbyqxmd.com/read/30303958/novel-rna-aptamers-targeting-gastrointestinal-cancer-biomarkers-cea-ca50-and-ca72-4-with-superior-affinity-and-specificity
#17
Qing Pan, Carmen O K Law, Mingo M H Yung, K C Han, Yuen Lam Pon, Terrence Chi Kong Lau
Gastric cancer is the third most common cause of death from cancer in the world and it remains difficult to cure in Western countries, primarily because most patients present with advanced disease. Currently, CEA, CA50 and CA72-4 are commonly used as tumor markers for gastric cancer by immunoassays. However, the drawback and conundrum of immunoassay are the unceasing problem in standardization of quality of antibodies and time/effort for the intensive production. Therefore, there is an urgent need for the development of a standardized assay to detect gastric cancer at the early stage...
2018: PloS One
https://www.readbyqxmd.com/read/30302273/abnormal-gametogenesis-induced-by-p53-deficiency-promotes-tumor-progression-and-drug-resistance
#18
Chunfang Liu, Zhen Cai, Guoxiang Jin, Danni Peng, Bo-Syong Pan, Xian Zhang, Fei Han, Xiaohong Xu, Hui-Kuan Lin
The century-old embryonal/gametogenesis hypothesis of tumors could link diverse tumors' malignant features together likely representing the real "stemness" of tumors. However, the genetic evidence to validate abnormal gametogenesis in tumors remains lacking. Here we show that p53 deficiency elicits abnormal gametogenesis from primordial germ cell-like stage to late oocyte-like stage and subsequent parthenogenetic activation. The similar upregulation of abnormal gametogenesis by p53 deficiency is observed both in p53-/- mouse model and cultured cancer cells...
2018: Cell Discovery
https://www.readbyqxmd.com/read/30301827/transcription-factor-myeloid-zinc-finger-1-suppresses-human-gastric-carcinogenesis-by-interacting-with-metallothionein-2a
#19
Shuye Lin, Xiaoyue Wang, Yuanming Pan, Rongmeng Tian, Bonan Lin, Guo-Sheng Jiang, Keqiang Chen, Yu-Qi He, Lulu Zhang, Wanli Zhai, Peng Jin, Lang Yang, Guoqiang Li, Yun Wu, Jiang Hu, Wanghua Gong, Zhijie Chang, Jian-Qiu Sheng, Youyong Lu, Ji-Ming Wang, Jiaqiang Huang
PURPOSE: Metallothionein 2A (MT2A) suppresses the progression of human gastric cancer (GC) potentially through an "MT2A-NF-κB pathway" with unclear mechanisms. This study explored the role of a transcription factor, myeloid zinc-finger 1 (MZF1), in MT2A-NF-κB pathway and its clinical significance in GC. EXPERIMENTAL DESIGN: MZF1 expression and function in GC were investigated in vitro and in vivo. The relationship between MZF1 and MT2A was determined by gain- and loss-of-function assays in GC cells and an immortalized gastric cell line GES-1...
October 9, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/30301790/neratinib-is-effective-in-breast-tumors-bearing-both-amplification-and-mutation-of-erbb2-her2
#20
Emiliano Cocco, F Javier Carmona, Pedram Razavi, Helen H Won, Yanyan Cai, Valentina Rossi, Carmen Chan, James Cownie, Joanne Soong, Eneda Toska, Sophie G Shifman, Ivana Sarotto, Peter Savas, Michael J Wick, Kyriakos P Papadopoulos, Alyssa Moriarty, Richard E Cutler, Francesca Avogadri-Connors, Alshad S Lalani, Richard P Bryce, Sarat Chandarlapaty, David M Hyman, David B Solit, Valentina Boni, Sherene Loi, José Baselga, Michael F Berger, Filippo Montemurro, Maurizio Scaltriti
Mutations in ERBB2 , the gene encoding epidermal growth factor receptor (EGFR) family member HER2, are common in and drive the growth of "HER2-negative" (not ERBB2 amplified) tumors but are rare in "HER2-positive" ( ERBB2 amplified) breast cancer. We analyzed DNA-sequencing data from HER2-positive patients and used cell lines and a patient-derived xenograft model to test the consequence of HER2 mutations on the efficacy of anti-HER2 agents such as trastuzumab, lapatinib, and neratinib, an irreversible pan-EGFR inhibitor...
October 9, 2018: Science Signaling
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