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https://www.readbyqxmd.com/read/28432822/focal-liver-lesions-segmentation-and-classification-in-nonenhanced-t2-weighted-mri
#1
Ilias Gatos, Stavros Tsantis, Maria Karamesini, Stavros Spiliopoulos, Dimitris Karnabatidis, John D Hazle, George C Kagadis
PURPOSE: To automatically segment and classify focal liver lesions (FLLs) on nonenhanced T2-weighted magnetic resonance imaging (MRI) scans using a computer-aided diagnosis (CAD) algorithm. METHODS: 71 FLLs (30 benign lesions, 19 hepatocellular carcinomas, and 22 metastases) on T2-weighted MRI scans were delineated by the proposed CAD scheme. The FLL segmentation procedure involved wavelet multiscale analysis to extract accurate edge information and mean intensity values for consecutive edges computed using horizontal and vertical analysis that were fed into the subsequent fuzzy C-means algorithm for final FLL border extraction...
April 22, 2017: Medical Physics
https://www.readbyqxmd.com/read/28432618/the-identification-of-key-genes-and-pathways-in-hepatocellular-carcinoma-by-bioinformatics-analysis-of-high-throughput-data
#2
Chaoyang Zhang, Li Peng, Yaqin Zhang, Zhaoyang Liu, Wenling Li, Shilian Chen, Guancheng Li
Liver cancer is a serious threat to public health and has fairly complicated pathogenesis. Therefore, the identification of key genes and pathways is of much importance for clarifying molecular mechanism of hepatocellular carcinoma (HCC) initiation and progression. HCC-associated gene expression dataset was downloaded from Gene Expression Omnibus database. Statistical software R was used for significance analysis of differentially expressed genes (DEGs) between liver cancer samples and normal samples. Gene Ontology (GO) term enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, based on R software, were applied for the identification of pathways in which DEGs significantly enriched...
June 2017: Medical Oncology
https://www.readbyqxmd.com/read/28432387/yttrium-90-radioembolization-for-unresectable-combined-hepatocellular-cholangiocarcinoma
#3
Lauren S Chan, Daniel Y Sze, George A Poultsides, John D Louie, Mohammed A Abdelrazek Mohammed, David S Wang
PURPOSE: Combined hepatocellular-cholangiocarcinoma (cHCC-CC) is a rare mixed cell type primary liver cancer with limited data to guide management. Transarterial radioembolization with yttrium-90 microspheres (RE) is an emerging treatment option for both hepatocellular carcinoma and intrahepatic cholangiocarcinoma. This study explored the safety and efficacy of RE for unresectable cHCC-CC. METHODS: Patients with histopathologically confirmed cHCC-CC treated with RE were retrospectively evaluated...
April 21, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28432125/sequential-adaptive-changes-in-a-c-myc-driven-model-of-hepatocellular-carcinoma
#4
James M Dolezal, Huabo Wang, Sucheta Kulkarni, Laura Jackson, Jie Lu, Sarangarajan Ranganathan, Eric S Goetzman, Sivakama Bharathi, Kevin Beezhold, Craig A Byersdorfer, Edward V Prochownik
Hepatocellular carcinoma (HCC) is a common cancer that frequently over-expresses the c-Myc (Myc) oncoprotein. Using a mouse model of Myc-induced HCC, we studied the metabolic, biochemical and molecular changes accompanying HCC progression, regression and recurrence. These involved altered rates of pyruvate and fatty acid β-oxidation and the likely re-directing of glutamine into biosynthetic rather than energy-generating pathways. Initial tumors also showed reduced mitochondrial mass and differential contributions of electron transport chain Complexes I and II to respiration...
April 21, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28431889/clinicopathologic-radiologic-and-molecular-study-of-23-combined-hepatocellular-cholangiocarcinomas-with-stem-cell-features-cholangiolocellular-type
#5
Jun Chen, Jian He, Min Deng, Hong-Yan Wu, Jiong Shi, Liang Mao, Qi Sun, Min Tang, Xiang-Shan Fan, Yu-Dong Qiu, Qin Huang
Cholangiolocellular carcinoma is a type of intrahepatic cholangiocarcinoma (ICC). According to the 2010 World Health Organization classification, this carcinoma is a combined hepatocellular-cholangiocarcinoma with stem cell features, cholangiolocellular type (CHC-SC-CLC). The aim of this study was to compare the clinicopathologic characteristics of CHC-SC-CLC and conventional ICC. Based on the gross and histologic characteristics, we divided consecutive ICC tumors into CHC-SC-CLC (n = 23), mass-forming (MF, n = 57), and non-MF (n = 22) groups...
April 18, 2017: Human Pathology
https://www.readbyqxmd.com/read/28431572/hepatitis-c-virus-ns4b-protein-induces-epithelial-mesenchymal-transition-by-upregulation-of-snail
#6
Bicheng Hu, Shenggao Xie, Yuqian Hu, Wen Chen, Xiaofan Chen, Yi Zheng, Xinxing Wu
BACKGROUND: Chronic hepatitis C virus (HCV) infection is an important cause of hepatocellular carcinoma (HCC). Epithelial to mesenchymal transition (EMT) is a key process associated with tumor metastasis and poor prognosis. HCV infection, HCV core and NS5A protein could induce EMT process, but the role of NS4B on EMT remains poorly understood. METHODS: We overexpressed HCV NS4B protein in HepG2 cells or Huh7.5.1 cells infected by HCVcc, the E-cadherin expression, N-cadherin expression and the EMT-associated transcriptional factor Snail were determined...
April 21, 2017: Virology Journal
https://www.readbyqxmd.com/read/28431405/usp5-functions-as-an-oncogene-for-stimulating-tumorigenesis-in-hepatocellular-carcinoma
#7
Yi Liu, Wei-Mao Wang, Ying-Fei Lu, Lu Feng, Li Li, Ming-Zhu Pan, Yu Sun, Chun-Wai Suen, Wei Guo, Jian-Xin Pang, Jin-Fang Zhang, Wei-Ming Fu
As deubiquitinases, several ubiquitin specific protease members have been reported to mediate tumorigenesis. Although ubiquitin specific protease 5 (Usp5) was previously demonstrated to suppress p53 transcriptional activity and DNA repair, its role in carcinogenesis remains elusive. In this study, we sought to define a novel role of Usp5 in tumorigenesis. It was found that Usp5 was significantly upregulated in hepatocellular carcinoma (HCC) cells and most clinical specimens. Further functional investigation also showed that Usp5 knockdown suppressed cell proliferation, migration, drug resistance and induced apoptosis; on the other hand, Usp5 overexpression promoted colony formation, migration, drug resistance and tumorigenesis...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430663/co-expression-network-analysis-identified-six-hub-genes-in-association-with-metastasis-risk-and-prognosis-in-hepatocellular-carcinoma
#8
Pengfei Chen, Fan Wang, Juerong Feng, Rui Zhou, Ying Chang, Jing Liu, Qiu Zhao
Hepatocellular carcinoma (HCC) has a high incidence and mortality worldwide, and its carcinogenesis and progression are influenced by a complex network of gene interactions. A weighted gene co-expression network was constructed to identify gene modules associated with the clinical traits in HCC (n = 214). Among the 13 modules, high correlation was only found between the red module and metastasis risk (classified by the HCC metastasis gene signature) (R2 = -0.74). Moreover, in the red module, 34 network hub genes for metastasis risk were identified, six of which (ABAT, AGXT, ALDH6A1, CYP4A11, DAO and EHHADH) were also hub nodes in the protein-protein interaction network of the module genes...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430660/screening-differential-circular-rna-expression-profiles-reveals-hsa_circ_0004018-is-associated-with-hepatocellular-carcinoma
#9
Liyun Fu, Ting Yao, Qingqing Chen, Xiaoyan Mo, Yaoren Hu, Junming Guo
Circular RNAs (circRNAs) have been emerged as an indispensable part of endogenous RNA network. However, the expression significance of circRNAs in hepatocellular carcinoma (HCC) is rarely revealed. The aim of this study was to determine the circRNA expression profile in HCC, and to investigate their clinical significances and relevant mechanisms for cancer progression. The global circRNA expression profile in HCC was measured by circRNA microarray. Levels of one representative circRNAs, hsa_circ_0004018, were confirmed by real-time reverse transcription-polymerase chain reaction...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430655/a-study-on-the-anti-tumor-mechanism-of-total-flavonoids-from-radix-tetrastigmae-against-additional-cell-line-based-on-cox-2-mediated-wnt-%C3%AE-catenin-signaling-pathway
#10
Li Qinglin, Xin Wenxiu, Zhong Like, Fangluo, Cao Gang, Huang Ping
This study is to explore the effect of total flavonoids from Radix Tetrastigmae (TF) against hepatic cancer and discuss the acting mechanism. Proliferation of HepG2 cells was promoted by PGE2 and Butaprost. Using AH6809 as the positive control, the inhibitory effect of TF on additional cell line was detected through a CCK-8 assay, the apoptosis rate was detected by flow cytometry, and the nuclear morphology of cells were observed by Hochest33258 staining. Then PCR was applied to determine the mRNA expression...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430653/preventive-effects-of-the-sodium-glucose-cotransporter-2-inhibitor-tofogliflozin-on-diethylnitrosamine-induced-liver-tumorigenesis-in-obese-and-diabetic-mice
#11
Koki Obara, Yohei Shirakami, Akinori Maruta, Takayasu Ideta, Tsuneyuki Miyazaki, Takahiro Kochi, Hiroyasu Sakai, Takuji Tanaka, Mitsuru Seishima, Masahito Shimizu
Sodium glucose cotransporter 2 inhibitors are expected to ameliorate the abnormalities associated with metabolic syndrome including non-alcoholic fatty liver disease. In this study, we investigated the effects of the sodium glucose cotransporter 2 inhibitor tofogliflozin on the development of non-alcoholic fatty liver disease-related liver tumorigenesis in C57BL/KsJ-+Leprdb/+Leprdb obese and diabetic mice. The direct effects of tofogliflozin on human liver cancer cell proliferation were also evaluated. Mice were administered diethylnitrosamine-containing water for 2 weeks and were treated with tofogliflozin throughout the experiment...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430645/midkine-promotes-hepatocellular-carcinoma-metastasis-by-elevating-anoikis-resistance-of-circulating-tumor-cells
#12
Bin Sun, Congli Hu, Zhibin Yang, Xiaofeng Zhang, Linlin Zhao, Junye Xiong, Junyong Ma, Lei Chen, Haihua Qian, Xiangji Luo, Lehua Shi, Jun Li, Xianshuo Cheng, Zhengfeng Yin
Midkine is overexpressed in hepatocellular carcinoma (HCC) and plays a role in tumor progression, but less is known about its role in resistance of circulating tumor cells (CTCs) to anoikis which leading to recurrence and metastasis. The aim of the present study was to analyze whether midkine was associated with HCC progression with anoikis resistance. We found that cultured HCC cells were more resistant to anoikis, which paralleled midkine expression, and midkine treatment significantly inhibited anoikis in a dose-dependent manner...
March 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430641/the-regulation-of-%C3%AE-catenin-activity-and-function-in-cancer-therapeutic-opportunities
#13
REVIEW
Shuang Shang, Fang Hua, Zhuo-Wei Hu
Wnt/β-catenin signaling is an evolutionarily conserved and versatile pathway that is known to be involved in embryonic development, tissue homeostasis and a wide variety of human diseases. Aberrant activation of this pathway gives rise to the accumulation of β-catenin in the nucleus and promotes the transcription of many oncogenes such as c-Myc and CyclinD-1. As a result, it contributes to carcinogenesis and tumor progression of several cancers, including colon cancer, hepatocellular carcinoma, pancreatic cancer, lung cancer and ovarian cancer...
February 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430638/adjuvant-celecoxib-and-lanreotide-following-transarterial-chemoembolisation-for-unresectable-hepatocellular-carcinoma-a-randomized-pilot-study
#14
Huan Tong, Bo Wei, Shuang Chen, Yong-Mei Xie, Ming-Guang Zhang, Lin-Hao Zhang, Zhi-Yin Huang, Cheng-Wei Tang
Recurrence of hepatocellular carcinoma (HCC) after transarterial chemoembolisation (TACE) is common due to neoangiogenesis. Cyclooxygenase-2 inhibitors and somatostatin analogues were reported to inhibit tumour angiogenesis. The pilot randomized controlled trial was aimed to prospectively evaluate the protocol of TACE combined with celecoxib and lanreotide (TACE+C+L) in patients with unresectable and advanced HCC. A total of 71 patients with HCC were enrolled and randomly assigned to either TACE (n=35) or TACE+C+L (n=36) group...
February 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430634/outcomes-of-microwave-ablation-for-hepatocellular-carcinoma-adjacent-to-large-vessels-a-propensity-score-analysis
#15
Jian-Ping Dou, Jie Yu, Xiao-Huan Yang, Zhi-Gang Cheng, Zhi-Yu Han, Fang-Yi Liu, Xiao-Ling Yu, Ping Liang
The aim of this study was to retrospectively compare the long-term efficacy of MW ablation as a curative therapy for hepatocellular carcinoma(HCC) adjacent to large vessels(≥3 mm) with that in safe location. Between 2010 and 2016, 406 patients diagnosed with early-stage HCC at Chinese PLA general hospital were enrolled. One-to-one matched pairs between the vessel group and the safe group were generated using propensity score matching. The associations of treatment strategy with overall survival and local tumor progression were determined by Cox regression...
February 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430610/treatment-of-hepatocellular-carcinoma-with-portal-vein-tumor-thrombus-advances-and-challenges
#16
REVIEW
Jin-Fang Jiang, Yong-Cong Lao, Bao-Hong Yuan, Jun Yin, Xin Liu, Long Chen, Jian-Hong Zhong
Portal vein tumor thrombus is a frequent, challenging complication in hepatocellular carcinoma. Hepatocellular carcinoma patients with portal vein tumor thrombus may show worse liver function, less treatment tolerance and worse prognosis than patients without portal vein tumor thrombus, and they may be at higher risk of comorbidity related to portal hypertension. Western and some Asian guidelines stratify hepatocellular carcinoma with portal vein tumor thrombus together with metastatic hepatocellular carcinoma and therefore recommend only palliative treatment with sorafenib or other systemic agents...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430597/systemic-inflammation-response-index-siri-predicts-prognosis-in-hepatocellular-carcinoma-patients
#17
Litao Xu, Shulin Yu, Liping Zhuang, Peng Wang, Yehua Shen, Junhua Lin, Zhiqiang Meng
The systemic inflammation response index (SIRI) is a useful tool for predicting prognosis in some types of cancer. In this retrospective study, we evaluated the efficacy of SIRI in predicting overall survival in hepatocellular carcinoma (HCC) patients following local or systemic therapy. A cutoff value of 1.05 was identified for SIRI using ROC analysis in a training patient cohort. In the validation cohort, survival analysis revealed that median overall survival was longer in HCC patients with SIRI scores < 1...
April 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430527/herc4-is-overexpressed-in-hepatocellular-carcinoma-and-contributes-to-the-proliferation-and-migration-of-hepatocellular-carcinoma-cells
#18
Yi Zheng, Jie Li, Chenwei Pan, Guangyao Zhou, Lu Zhuge, Lingxiang Jin, Peipei Fang
Recently, more and more evidences unveiled that ubiquitin-proteasome system (UPS) makes an important contribution to the occurrence and development of cancer. HERC4 is one identified Ubiqutin ligase E3, a member of UPS. Although some studies showed that HERC4 abnormally expresses in many cancer cells, till now, nothing has been reported about the function of HERC4 in the development of hepatoma carcinoma. To this end, in this study, we studied the function of HERC4 for the first time in hepatoma carcinoma cells...
April 21, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28430373/a-five-mirna-expression-signature-predicts-survival-in-hepatocellular-carcinoma
#19
Gang Liu, Hui Wang, Jin-Dong Fu, Jing-Ying Liu, Ai-Guo Yan, Yan-Yan Guan
The aim of this study was to identify a microRNA (miRNA) expression signature for predicting HCC (hepatocellular carcinoma) survival. A total of 322 HCC patients in The Cancer Genome Atlas (TCGA) database were randomly divided into training and testing set. miRNAs, associated with survival time in the training set, were identified by using univariate Cox regression analysis. The risk score was formulated based on the expression levels of these miRNAs. Then the miRNA signature was validated in testing set through Kaplan-Meier analysis and log-rank test...
April 21, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28430371/evaluation-of-circulating-zonulin-as-a-potential-marker-in-the-pathogenesis-of-nonalcoholic-fatty-liver-disease
#20
Olfat M Hendy, Maha M Elsabaawy, Mona M Aref, Fatma M Khalaf, Abdel Moaty A Oda, Helmy M El Shazly
Nonalcoholic fatty liver disease (NAFLD) is a spectrum of liver disorders ranging from simple hepatic steatosis up to nonalcoholic steatohepatitis (NASH) evolving to cirrhosis and hepatocellular carcinoma (HCC). Liver biopsy is still the gold standard modality for diagnosing and staging NAFLD. The linkage between intestinal microbiota and NAFLD, might suggest a potential role of serum zonulin in NAFLD diagnosis. To appraise the role of circulating zonulin in NAFLD pathogenesis, 56 subjects with proved NAFLD by ultrasonography and liver biopsy, as well as 20 healthy controls were tested...
April 21, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
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