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https://www.readbyqxmd.com/read/29145632/clinical-significance-of-cd13-and-epithelial-mesenchymal-transition-emt-markers-in-hepatocellular-carcinoma
#1
Chihiro Yamanaka, Hiroshi Wada, Hidetoshi Eguchi, Hisanori Hatano, Kunihito Gotoh, Takehiro Noda, Daisaku Yamada, Tadafumi Asaoka, Koichi Kawamoto, Hiroaki Nagano, Yuichiro Doki, Masaki Mori
Background & Aims: To improve prognosis in patients with hepatocellular carcinoma (HCC), the molecular mechanisms of tumor thrombus formation and metastasis must be clarified. The epithelial-mesenchymal transition (EMT) and cancer stem cells (CSCs) play crucial roles in tumor invasion and metastasis. This study aimed to reveal the clinical significance of the expression of the functional CSC marker, CD13, and investigate the correlation between CD13 expression and two EMT markers, E-cadherin and vimentin...
November 14, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29145561/clinical-significance-of-cd73-in-triple-negative-breast-cancer-multiplex-analysis-of-a-phase-iii-clinical-trial
#2
L Buisseret, S Pommey, B Allard, S Garaud, M Bergeron, I Cousineau, L Ameye, Y Bareche, M Paesmans, J P A Crown, A Di Leo, S Loi, M Piccart-Gebhart, K Willard-Gallo, C Sotiriou, J Stagg
Background: CD73 is an ecto-enzyme that promotes tumor immune escape through the production of immunosuppressive extracellular adenosine in the tumor microenvironment. Several CD73 inhibitors and adenosine receptor antagonists are being evaluated in phase I clinical trials. Patients and methods: Full-face sections from formalin-fixed paraffin-embedded primary breast tumors from 122 samples of triple-negative breast cancer from the BIG 02-98 adjuvant phase III clinical trial were included in our analysis...
November 14, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29145490/rnai-screen-reveals-a-role-of-sphk2-in-dengue-virus-mediated-apoptosis-in-hepatic-cell-lines
#3
Atthapan Morchang, Regina Ching Hua Lee, Pa-Thai Yenchitsomanus, Gopinathan Pillai Sreekanth, Sansanee Noisakran, Justin Jang Hann Chu, Thawornchai Limjindaporn
Hepatic dysfunction is a feature of dengue virus (DENV) infection. Hepatic biopsy specimens obtained from fatal cases of DENV infection show apoptosis, which relates to the pathogenesis of DENV infection. However, how DENV induced liver injury is not fully understood. In this study, we aim to identify the factors that influence cell death by employing an apoptosis-related siRNA library screening. Our results show the effect of 558 gene silencing on caspase 3-mediated apoptosis in DENV-infected Huh7 cells. The majority of genes that contributed to apoptosis were the apoptosis-related kinase enzymes...
2017: PloS One
https://www.readbyqxmd.com/read/29145444/inhibition-of-the-h3k9-methyltransferase-g9a-attenuates-oncogenicity-and-activates-the-hypoxia-signaling-pathway
#4
Jolene Caifeng Ho, Lissa Nurrul Abdullah, Qing You Pang, Sudhakar Jha, Edward Kai-Hua Chow, Henry Yang, Hiroyuki Kato, Lorenz Poellinger, Jun Ueda, Kian Leong Lee
Epigenetic mechanisms play important roles in the regulation of tumorigenesis, and hypoxia-induced epigenetic changes may be critical for the adaptation of cancer cells to the hypoxic microenvironment of solid tumors. Previously, we showed that loss-of-function of the hypoxia-regulated H3K9 methyltransferase G9A attenuates tumor growth. However, the mechanisms by which blockade of G9A leads to a tumor suppressive effect remain poorly understood. We show that G9A is highly expressed in breast cancer and is associated with poor patient prognosis, where it may function as a potent oncogenic driver...
2017: PloS One
https://www.readbyqxmd.com/read/29145406/the-axis-il-10-claudin-10-is-implicated-in-the-modulation-of-aggressiveness-of-melanoma-cells-by-b-1-lymphocytes
#5
Elizabeth Cristina Perez, Patricia Xander, Maria Fernanda Lucatelli Laurindo, Ronni Rômulo Novaes E Brito, Bruno Camolese Vivanco, Renato Arruda Mortara, Mario Mariano, José Daniel Lopes, Alexandre Castro Keller
B-1 lymphocytes are known to increase the metastatic potential of B16F10 melanoma cells via the extracellular signal-regulated kinase (ERK) pathway. Since IL-10 is associated with B-1 cells performance, we hypothesized that IL-10 could be implicated in the progression of melanoma. In the present work, we found that the C57BL/6 mice, inoculated with B16F10 cells that were co-cultivated with B-1 lymphocytes from IL-10 knockout mice, developed fewer metastatic nodules than the ones which were injected with the melanoma cells that were cultivated in the presence of wild-type B-1 cells...
2017: PloS One
https://www.readbyqxmd.com/read/29145336/expression-of-hormone-receptors-in-low-grade-adenosquamous-carcinoma-of-the-breast-a-case-report
#6
Hai-Bo Wu, An-Li Zhang, Wei Wang, Heng Li
RATIONALE: Low-grade adenosquamous carcinoma (LGASC) is a rare subtype of metaplastic breast carcinoma which is generally recognized as a characteristic subgroup of triple-negative breast cancers previously. However, in this study, we reported for the first time a case of LGASC with hormone receptors expression. PATIENT CONCERNS: Pathological analysis of breast tumor specimen obtained by a 42-year-old female patient was performed. Morphologically, it composed of glandular structures with scattered squamous differentiation accompanied by haphazard arrangement of spindle cell stroma...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145206/microrna-expression-profiling-of-pancreatic-cancer-cell-line-l3-6p1-following-b7-h4-knockdown
#7
Yun Qian, Limin Feng, Weigen Wu, Tianhao Weng, Chenyu Hu, Bo Hong, Frederick X C Wang, Lingwei Shen, Qi Wang, Xin Jin, Hangping Yao
BACKGROUND/AIMS: Co-stimulating molecule B7-H4 regulates T cell-mediated immune responses, participates in tumor immune escape, and promotes the proliferation and metastasis of pancreatic cancer cells. However, the specific mechanisms are unclear. MicroRNAs (miRNAs) participated in the pathogenesis and progression of cancer. METHODS: In this study, a microarray technique was used to screen B7-H4-related differentially expressed miRNAs in a pancreatic cancer cell line find those associated with pancreatic cancer...
November 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29145194/deficiency-of-functional-iron-sulfur-domains-in-abce1-inhibits-the-proliferation-and-migration-of-lung-adenocarcinomas-by-regulating-the-biogenesis-of-beta-actin-in-vitro
#8
Qian Yu, Xu Han, Da-Li Tian
BACKGROUND/AIMS: ATP-binding cassette transporter E1 (ABCE1), a unique ABC superfamily member that bears two Fe-S clusters, is essential for metastatic progression in lung cancer. Fe-S clusters within ABCE1 are crucial for ribosome dissociation and translation reinitiation; however, whether these clusters promote tumor proliferation and migration is unclear. METHODS: The interaction between ABCE1 and β-actin was confirmed using GST pull-down. The lung adenocarcinoma (LUAD) cell line A549 was transduced with lentiviral packaging vectors overexpressing either wild-type ABCE1 or ABCE1 with Fe-S cluster deletions (ΔABCE1)...
November 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29145193/huaier-extract-inhibits-breast-cancer-progression-through-a-lncrna-h19-mir-675-5p-pathway
#9
Jijun Wang, Xiaolong Wang, Tong Chen, Liyu Jiang, Qifeng Yang
BACKGROUND/AIMS: Increasing evidence indicates that Huaier extract has promising therapeutic effects against cancer. However, the mechanisms that underlie its anti-tumor effects remain unclear. In recent years, various studies have shown that long noncoding RNAs (lncRNAs) play a critical role in the regulation of cancer development and progression. Here, we explored the role of lncRNAs in Huaier-induced tumor suppression. METHODS: Microarray profiling was performed to identify the candidate lncRNAs affected by Huaier extract...
November 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29145177/lncrna-cps1-it1-suppresses-cell-proliferation-invasion-and-metastasis-in-colorectal-cancer
#10
Wei Zhang, Weitang Yuan, Junmin Song, Shijun Wang, Xiaoming Gu
BACKGROUND/AIMS: Increasing evidence demonstrates that long non-coding RNAs (lncRNAs) regulate diverse cellular processes and cancer progression. Whether lncRNAs play any functional role in colorectal carcinoma (CRC) remains largely unknown. The aim of this study was to investigate the role of lncRNA CPS1 intronic transcript 1 (CPS1-IT1) in CRC. METHODS: Expression of CPS1-IT1 was initially assessed in human CRC tissues and in a series of CRC cell lines. The correlations between CPS1-IT1 levels and survival outcomes were analyzed to elucidate the clinical significance of CPS1-IT1 in CRC...
November 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29145165/long-non-coding-rna-dlx6-as1-aggravates-hepatocellular-carcinoma-carcinogenesis-by-modulating-mir-203a-mmp-2-pathway
#11
Lei Zhang, Xiaowei He, Ting Jin, Li Gang, Zhenlin Jin
Long non-coding RNAs (lncRNAs) have been wildly verified to modulate multiple tumorigenesis, especially hepatocellular carcinoma (HCC). In present study, our team aims to investigate the role of lncRNA DLX6-AS1 in the HCC carcinogenesis. Results of early-stage experiments found that DLX6-AS1 expression level was up-regulated in 60 cases of HCC tissue samples compared with adjacent normal tissue. Moreover, the aberrant overexpression of DLX6-AS1 indicated the poor prognosis of HCC patients. Loss-of-function experiments revealed that DLX6-AS1 knockdown inhibited the proliferation, migration and invasion of HCC cells in vitro, and decreased the tumor growth in vivo...
October 28, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29145164/long-noncoding-rna-hnf1a-as1-indicates-a-poor-prognosis-of-colorectal-cancer-and-promotes-carcinogenesis-via-activation-of-the-wnt-%C3%AE-catenin-signaling-pathway
#12
Xin Zhang, Yumin Xiong, Fengying Tang, Ying Bian, Yanhui Chen, Fengli Zhang
Long non-coding RNAs (lncRNAs) have been identified to play critical roles in tumorigenesis. LncRNA HNF1A-AS1 has been suggested to act as an oncogene and serves as a novel prognostic biomarker for various cancer. However, the biological role and clinical significance of lncRNA HNF1A-AS1 in colorectal cancer (CRC) have yet to be fully elusive. Therefore, the present study was designed to determine the expression of lncRNA HNF1A-AS1 in patients with CRC, the role of lncRNA HNF1A-AS1 in CRC cells, as well as the underlying regulatory mechanisms...
October 24, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29145073/target-induced-proximity-ligation-triggers-recombinase-polymerase-amplification-and-transcription-mediated-amplification-to-detect-tumor-derived%C3%A2-exosomes-in-nasopharyngeal-carcinoma-with-high-sensitivity
#13
Wanli Liu, Jianpei Li, Yixian Wu, Shan Xing, Yanzhen Lai, Ge Zhang
Tumor-derived exosomes (TEXs) are extracellular vesicles that are continuously released into the blood by tumor cells and carry specific surface markers of the original tumor cells. Substantial evidence has implicated TEXs as attractive diagnostic markers for cancer. However, the detection of TEXs in blood at an early tumor stage is challenging due to their very low concentration. Here, we established a method called PLA-RPA-TMA assay that allows TEXs to be detected with high sensitivity and specificity. Based on two proximity ligation assay (PLA) probes that recognize a biomarker on a TEX, we generated a unique surrogate DNA signal for the specific biomarker, which was synchronously amplified twice by recombinase polymerase amplification (RPA) coupled with transcription-mediated amplification (TMA), and then the products of the RPA-TMA reaction were quantitatively detected using a gold nanoparticle-based colorimetric assay...
November 9, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29145046/genetic-and-clinical-characteristics-of-phyllodes-tumors-of-the-breast
#14
Ji-Yeon Kim, Jong Han Yu, Seok Jin Nam, Seok Won Kim, Se Kyung Lee, Woong-Yang Park, Dong-Young Noh, Do-Hyun Nam, Yeon Hee Park, Wonshik Han, Jeong Eon Lee
PURPOSE: Phyllodes tumors (PTs) of the breast are rare, accounting for less than 1% of all breast tumors. Among PTs, malignant PTs (MPTs) have malignant characteristics and distant metastases occur in about 20% to 30% of MPTs. However, there is no effective treatment for MPTs with distant metastasis, resulting in an abject prognosis. We performed targeted deep sequencing on PTs to identify the associations between genetic alterations and clinical prognosis. METHODS: We performed targeted deep sequencing to evaluate the genetic characteristics of PTs and analyzed the relationships between clinical and genetic characteristics...
November 12, 2017: Translational Oncology
https://www.readbyqxmd.com/read/29144820/pheochromocytoma-a-genetic-and-diagnostic-update
#15
Leilani B Mercado-Asis, Katherine I Wolf, Ivana Jochmanova, David Taïeb
OBJECTIVE: Pheochromocytomas and paragangliomas (PPGLs) are neuroendocrine tumors derived from adrenal or extra-adrenal locations, respectively. Upon suspicion of PPGL, specific metabolomic, molecular, biochemical, imaging, and histopathological studies are performed to prove, localize, treat, and monitor disease progression. Recently, improved diagnostic tools allow physicians to accurately diagnose PPGL, even in patients presenting with small (less than 1 cm) or biochemically silent tumors, which previously delayed proper detection and treatment...
November 16, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29144791/is-there-a-role-for-programmed-death-ligand-1-testing-and-immunotherapy-in-colorectal-cancer-with-microsatellite-instability-part-i-colorectal-cancer-microsatellite-instability-testing-and-clinical-implications
#16
Esmeralda Celia Marginean, Barbara Melosky
CONTEXT: - Colorectal cancer (CRC) represents the third most-common cancer in developed countries and is a leading cause of cancer deaths worldwide. Two recognized pathways contribute to CRC development: a more-common chromosomal instability pathway and, in 15% of cases, a deficient mismatch repair or microsatellite instability-high (MSI-H) pathway. The MSI-H CRC can be associated with somatic or germline mutations. Microsatellite status has been recognized as a prognostic and predictive biomarker...
November 16, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/29144570/lncapc-drives-wnt-%C3%AE-catenin-activation-and-liver-tic-self-renewal-through-ezh2-mediated-apc-transcriptional-inhibition
#17
Xiaomin Fu, Jizhen Lin, Fujun Qin, Zihe Yang, Yuechao Ding, Yong Zhang, Lu Han, Xiaoyan Zhu, Qinxian Zhang
Liver tumor initiating cells (TICs), a small subset cells in tumor bulk, are responsible for liver tumor initiation, metastasis and relapse. However, the regulatory mechanism of liver TICs remains largely unknown. Here we found a long noncoding RNA lncAPC, locating near from APC locus, was highly expressed in liver cancer and liver TICs. LncAPC was required for liver TIC self-renewal. Silencing and overexpressing lncAPC showed impaired and enhanced sphere formation capacity of liver TICs, respectively. By recruiting EZH2 to APC promoter, LncAPC inhibits APC transcription and thus drives the activation of Wnt/β-catenin signaling...
November 16, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/29144562/mir-5100-increases-the-cisplatin-resistance-of-the-lung-cancer-stem-cells-by-inhibiting-the-rab6
#18
Lawei Yang, Ziying Lin, Yahong Wang, Shenglan Gao, Qinglan Li, Chunyan Li, Wenya Xu, Jie Chen, Tie Liu, Zeqing Song, Gang Liu
Cisplatin-based chemotherapy is the most commonly used treatment regimen for lung cancer. Cancer stem cells (CSCs) are postulated to be important promoters of drug resistance. We previously found that miR-5100 is overexpressed in lung cancer, but it is unknown whether and how miR-5100 regulates cisplatin resistance. Here, we demonstrated that miR-5100 was significantly up-regulated in CD44 + CD133+ lung cancer stem cells (LCSCs) compared with non-CSCs. Additionally, over-expression of miR-5100 increased CSC properties, cell growth and tumor sphere formation in lung cancer cell line A549 or H1299, and that miR-5100 inhibitor significantly increased sensitivity of LCSCs to cisplatin in vitro...
November 16, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/29144553/blocking-17%C3%AE-hydroxysteroid-dehydrogenase-type-1-in-endometrial-cancer-a-potential-novel-endocrine-therapeutic-approach
#19
Gonda Fj Konings, Karlijn Mc Cornel, Sofia Xanthoulea, Bert Delvoux, Margaretha A Skowron, Loes Kooreman, Pasi Koskimies, Camilla Krakstad, Helga B Salvesen, Kim van Kuijk, Yannick Jm Schrooders, Marc Vooijs, Arjan J Groot, Marlies Y Bongers, Roy Fpm Kruitwagen, Andrea Romano
The enzyme type 1 17β-hydroxysteroid dehydrogenase (17β-HSD-1), responsible for generating active 17β-estradiol (E2) from low-active estrone (E1), is over-expressed in endometrial cancer (EC) thus implicating an increased intra-tissue generation of E2 in this estrogen-dependent condition. In this study we explored the possibility of inhibiting 17β-HSD-1 and impairing the generation of E2 from E1 in EC using in vitro, in vivo and ex vivo models. We generated EC cell lines derived from the well-differentiated endometrial adenocarcinoma Ishikawa cell line and expressing levels of 17β-HSD-1 similar to human tissues...
November 16, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/29144541/genetic-landscape-of-papillary-thyroid-carcinoma-in-the-chinese-population
#20
Jialong Liang, Wanshi Cai, Dongdong Feng, Huajing Teng, Fengbiao Mao, Yi Jiang, Shanshan Hu, Xianfeng Li, Yujie Zhang, Baoguo Liu, Zhong Sheng Sun
Improvement in the clinical outcome of human cancers requires characterization of genetic alterations underlying their pathogenesis. Large-scale genomic and transcriptomic characterization of papillary thyroid carcinomas (PTCs) in Western populations has revealed multiple oncogenic drivers which are essential for understanding pathogenic mechanisms of this disease; while so far, the genetic landscape in Chinese patients with PTC remains uncharacterized. Here, we conducted a largescale genetic analysis of PTCs from patients in China to determine the mutational landscape of this cancer...
November 16, 2017: Journal of Pathology
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