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https://www.readbyqxmd.com/read/28535628/-expression-and-clinical-significance-of-long-non-coding-rna-ccat1-in-gastric-cancer
#1
T Shan, Y G Chen, B Hong, H Zhou, J Z Xia
Objective: To investigate the expression and clinical significance of long non-coding RNA colon cancer associated transcript-1 (CCAT1) in gastric cancer (GC), and to further explore the effect of CCAT1 on cell proliferation of GC. Methods: The mRNA expressions of CCAT1 in GC tissues and matched adjacent normal tissues from 62 patients who received resection for gastric carcinoma between January 2013 and May 2015 in Nanjing Medical University Affiliated Wuxi Second Hospital and expressions in GC cell lines were assessed by quantitative real-time PCR (qRT-PCR)...
May 16, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28535533/malat1-modulates-tgf-%C3%AE-1-induced-endothelial-to-mesenchymal-transition-through-downregulation-of-mir-145
#2
Yin Xiang, Yachen Zhang, Yong Tang, Qianhui Li
BACKGROUND/AIMS: Endothelial-to-mesenchymal transition (EndMT) plays significant roles under various pathological conditions including cardiovascular diseases, fibrosis, and cancer. EndMT of endothelial progenitor cells (EPCs) contributes to neointimal hyperplasia following cell therapy Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is a long non-coding RNA (lncRNA) that promotes metastasis and cancer. MicroRNA-145 (miR-145) is a tumor suppressor that has been reported to inhibit SMAD3-mediated epithelial-to-mesenchymal transition (EMT) of cancer cells...
May 25, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28535417/ezrin-nf-kb-activation-regulates-epithelial-mesenchymal-transition-induced-by-egf-and-promotes-metastasis-of-colorectal-cancer
#3
Yingru Li, Zhaoyu Lin, Bin Chen, Shuang Chen, Zhipeng Jiang, Taicheng Zhou, Zehui Hou, Youyuan Wang
There is growing evidence that epithelial mesenchymal-transition (EMT) plays significant roles in terms of tumor metastasis. There are a lot of cytokines inducing EMT of tumor cells, EGF is one of the important cytokines.Ezrin is a connexin between the cytoskeleton and the cell membrane, which is closely related to the morphological movement and metastasis of tumor cells.EGF can activate Ezrin and affects cell motility. In recent years, many studies have shown that NF-kB acts as an important transcription factor, involving in the process of EMT...
May 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28535415/dual-hypopigmentary-effects-of-punicalagin-via-the-erk-and-akt-pathways
#4
Jun Seob Shin, Jun Hee Cho, Hana Lee, Hyo-Soon Jeong, Myo-Kyoung Kim, Hye-Young Yun, Nyoun Soo Kwon, Dong-Seok Kim
Punicalagin is a phenolic compound with antioxidant properties. However, the effects of punicalagin on melanin synthesis have been poorly evaluated. Therefore, we investigated the effects of punicalagin on melanogenesis in Mel-Ab cells. Punicalagin significantly inhibited melanin synthesis in a dose-dependent manner. In accordance with the melanin content, punicalagin also dose-dependently decreased tyrosinase activity. Punicalagin did not directly inhibit tyrosinase in a cell-free system but did downregulate the expression of microphthalmia-associated transcription factor (MITF) and tyrosinase...
May 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28535373/a-molecular-switch-regulating-cell-fate-choice-between-muscle-progenitor-cells-and-brown-adipocytes
#5
Yitai An, Gang Wang, Yarui Diao, Yanyang Long, Xinrong Fu, Mingxi Weng, Liang Zhou, Kun Sun, Tom H Cheung, Nancy Y Ip, Hao Sun, Huating Wang, Zhenguo Wu
During mouse embryo development, both muscle progenitor cells (MPCs) and brown adipocytes (BAs) are known to derive from the same Pax7(+)/Myf5(+) progenitor cells. However, the underlying mechanisms for the cell fate control remain unclear. In Pax7-null MPCs from young mice, several BA-specific genes, including Prdm16 and Ucp1 and many other adipocyte-related genes, were upregulated with a concomitant reduction of Myod and Myf5, two muscle lineage-determining genes. This suggests a cell fate switch from MPC to BA...
May 22, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28535261/recruitment-of-a-lineage-specific-virulence-regulatory-pathway-promotes-intracellular-infection-by-a-plant-pathogen-experimentally-evolved-into-a-legume-symbiont
#6
Delphine Capela, Marta Marchetti, Camille Clérissi, Anthony Perrier, Dorian Guetta, Carine Gris, Marc Valls, Alain Jauneau, Stéphane Cruveiller, Eduardo P C Rocha, Catherine Masson-Boivin
Ecological transitions between different lifestyles, such as pathogenicity, mutualism and saprophytism, have been very frequent in the course of microbial evolution, and often driven by horizontal gene transfer. Yet, how genomes achieve the ecological transition initiated by the transfer of complex biological traits remains poorly known. Here we used experimental evolution, genomics, transcriptomics and high-resolution phenotyping to analyze the evolution of the plant pathogen Ralstonia solanacearum into legume symbionts, following the transfer of a natural plasmid encoding the essential mutualistic genes...
May 23, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/28535014/mir-455-inhibits-cell-proliferation-and-migration-via-negative-regulation-of-egfr-in-human-gastric-cancer
#7
Tao Ning, Zhijuan Peng, Shuang Li, Yanjun Qu, Haiyang Zhang, Jingjing Duan, Xinyi Wang, Haiou Yang, Rui Liu, Ting Deng, Ming Bai, Yi Wang, Yiran Si, Le Zhang, Xia Wang, Shaohua Ge, Likun Zhou, Guoguang Ying, Yi Ba
Epidermal growth factor receptor (EGFR) plays an important role in various types of cancer. However, the therapeutic agents that target EGFR have not produced favorable results in gastric cancer. miRNAs are known to regulate gene expression at the post-transcriptional level. We wondered if miRNAs could be potential therapeutic agents for the targeted therapy against EGFR. In this study, we found an increase in the copies of EGFR mRNA and the upregulated expression of the EGFR protein in gastric cancer tissues compared with normal gastric tissues...
May 22, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28535003/mirna%C3%A2-1271-inhibits-cell-proliferation-in-neuroglioma-by-targeting-fibronectin-1
#8
Jian Gong, Zhao-Xia Wang, Zhen-Ying Liu
miR-1271 is a multifunctional post-translational modulator, which is involved in several diseases. However, the association between microRNA (miR)‑1271 and fibronectin 1 (FN1) remains to be fully elucidated in neuroglioma. In the present study, it was hypothesized that a post‑translational mechanism of miR‑1271 regulates the expression of FN1 in the progression of neuroglioma. The present study aimed to investigate the clinical significance and underlying molecular mechanisms of miRNA‑1271 in the development of glioma...
May 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534999/mir-370-regulates-cell-proliferation-and-migration-by-targeting-egfr-in-gastric-cancer
#9
Tao Ning, Haiyang Zhang, Xinyi Wang, Shuang Li, Le Zhang, Ting Deng, Likun Zhou, Rui Liu, Xia Wang, Ming Bai, Shaohua Ge, Hongli Li, Dingzhi Huang, Guoguang Ying, Yi Ba
Epidermal growth factor receptor (EGFR) is known to be overexpressed in ~30% of gastric cancer (GC) cases, and may serve as an effective biomarker for predicting the clinical benefit of anti-EGFR therapy. However, the mechanism underlying the regulation of EGFR expression remains unknown. Evidence indicates that post-transcriptional regulation may exist in the process of EGFR expression. In the present study, we aimed to explore whether miR-370 is involved in this process, and how it impacts the biological behaviors of GC cells...
May 23, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28534991/long-non-coding-rna-xloc_006390-promotes-cervical-cancer-proliferation-and-metastasis-through-the-regulation-of-set-domain-containing-8
#10
Xiaotian Luan, Yankui Wang
The long non-coding RNA (lncRNA) XLOC_006390 is increased in various human cancer tissues and it plays important roles in cell growth and migration. However, the role of lncRNA XLOC_006390 in the progression and metastasis of cervical cancer has not been evaluated and remains unclear. In the present study, we hypothesized that lncRNA XLOC_006390 is also increased in cervical cancer, and upregulation of lncRNA XLOC_006390 contributes to cervical cancer metastasis. The expression of lncRNA XLOC_006390 in cervical cancer tissues and cell lines was analyzed using quantitative reverse-transcription-polymerase chain reaction (qRT-PCR)...
May 23, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28534990/tumor-suppressor-microrna-34a-inhibits-cell-migration-and-invasion-by-targeting-mmp-2-mmp-9-fndc3b-in-esophageal-squamous-cell-carcinoma
#11
Lan Yang, Xiaoyue Song, Jianbo Zhu, Mei Li, Yu Ji, Fei Wu, Yunzhao Chen, Xiaobin Cui, Jianming Hu, Lianghai Wang, Yuwen Cao, Yutao Wei, Wenjie Zhang, Feng Li
MicroRNAs (miRNAs) are a large family of small, non-coding RNAs that play a pivotal role in tumorigenesis. miR‑34a, which is a member of the miR-34 family, is a downstream target of p53. Increasing evidence shows that miR-34a dysregulation may contribute to tumor development and progression in numerous cancers, including esophageal squamous cell carcinoma (ESCC). However, the mechanism of miR-34a in the regulation of ESCC cells need to be further elucidated because of the complex regulative network of miRNAs...
May 19, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28534986/overexpression-of-sox4-promotes-cell-migration-and-invasion-of-renal-cell-carcinoma-by-inducing-epithelial-mesenchymal-transition
#12
Hailong Ruan, Hongmei Yang, Haibin Wei, Wen Xiao, Ning Lou, Bin Qiu, Guanghua Xu, Zhengshuai Song, Haibin Xiao, Lei Liu, Yali Zhou, Wenjun Hu, Ke Chen, Xuanyu Chen, Xiaoping Zhang
Incomplete understanding remains in the molecular mechanisms underlying progression and metastasis of renal cancer. The transcription factor SOX4 is upregulated in various human malignancies, including renal cancer, indicating it may be involved in renal tumorigenesis. In this study, we explored this hypothesis by loss-of-function and gain-of-function assays of SOX4 in renal cancer cell lines and renal epithelial cell line. We found that specific knockdown of SOX4 in renal cancer cell lines significantly suppressed the migration and invasion of cancer cells; specific overexpression of SOX4 in renal epithelial cell line markedly promoted the migration and invasion of the cell line...
May 17, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28534959/microrna-200c-regulates-cisplatin-resistance-by-targeting-zeb2-in-human-gastric-cancer-cells
#13
Tao Jiang, Pengfei Dong, Long Li, Xiao Ma, Pei Xu, He Zhu, Yanqiu Wang, Baotong Yang, Kuangge Liu, Jinwei Liu, Juan Xue, Runzhe Lv, Panke Su, Guoqiang Kong, Yongchao Chang, Chonggao Zhao, Lidong Wang
This study was specifically designed to confirm the hypothesis that microRNA-200c (miR-200c) affects the development of cisplatin (DDP) resistance in human gastric cancer cells by targeting zinc finger E-box binding homeobox 2 (ZEB2). A total of 50 gastric cancer tissues and their corresponding normal adjacent tissue samples were collected. Then, the expression levels of miR-200c and ZEB2 in both gastric cancer specimens and cells were detected using the quantitative real-time reverse transcription-polymerase chain reaction (qRT-PCR) and immunohistochemical methods...
May 22, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28534958/mir-204-regulates-the-biological-behavior-of-breast-cancer-mcf-7-cells-by-directly-targeting-foxa1
#14
Si-Qiao Shen, Lan-Shan Huang, Xiao-Ling Xiao, Xiao-Fei Zhu, Dan-Dan Xiong, Xue-Mei Cao, Kang-Lai Wei, Gang Chen, Zhen-Bo Feng
MicroRNAs (miRNAs) are short, non-protein-coding RNAs and transcripts that are 18-24 nt in length. miR-204 was first identified as an anti-oncogene and is reported to be downregulated in non-small cell lung cancer, glioma, gastric and thyroid cancer. Recent studies have proposed that a low level of miR-204 expression is associated with tumor progression and disease outcome in breast cancer. Forkhead box A1 (FOXA1), a transcription factor, plays a crucial role in breast cancer and has been predicted as a target of miR-204...
May 16, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28534957/grape-seed-proanthocyanidin-inhibits-inflammatory-responses-in-hepatic-stellate-cells-by-modulating-the-mapk-akt-and-nf-%C3%AE%C2%BAb-signaling-pathways
#15
Jin-Woo Lee, Young Il Kim, Youngchul Kim, Minji Choi, Seoyeon Min, Yong Hoon Joo, Sung-Vin Yim, Namhyun Chung
In the present study, we aimed to investigate the molecular mechanisms and prophylactic effects of grape seed proanthocyanidin (GSP) on lipopolysaccharide (LPS)-stimulated human hepatic stellate cells (HSCs). Cell counting and MTT assays were used to assess cell viability in the absence or presence of GSP. Reverse transcription-quantitative PCR (RT-qPCR) was performed for several inflammation-related genes (NOD1, NOD2, TLR2, TLR4, IL-1 β, IL-6, IL-8, iNOS and COX-2). The expression of anti-inflammatory cell signaling molecules, including c-Jun N-terminal kinase (JNK), p38, extracellular signal regulated kinase (ERK), Akt, nuclear factor-κB (NF-κB), inhibitory-κBα (IκBα), iNOS and COX-2, was evaluated by western blot analysis...
May 19, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28534932/inhibition-of-prostate-cancer-rm1-cell-growth-in%C3%A2-vitro-by-hydroxyapatite-nanoparticle%C3%A2-delivered-short-hairpin-rnas-against-stat3
#16
Zuowen Liang, Hongliang Wang, Baofeng Guo, Fubiao Li, Jinsha Liu, Zhewen Liu, Libo Xu, Wenjing Yun, Xuejian Zhao, Ling Zhang
The present study investigated the effect of signal transducer and activator of transcription 3 (Stat3) interference on RM1 prostate cancer cell viability in vitro, using plasmid‑based Stat3 specific short hairpin RNA (sh‑Stat3) delivered by hydroxyapatite nanoparticles (HAP). HAP carrying sh‑Stat3 plasmids were transfected into tumor cells. MTT assays were used to measure RM1 cell viability 24 and 48 h following transfection, and the apoptosis rate and cell cycle phase distribution were determined by flow cytometry...
May 16, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534780/katzlgo-large-scale-prediction-of-lncrna-functions-by-using-the-katz-measure-based-on-multiple-networks
#17
Zuping Zhang, Jingpu Zhang, Chao Fan, Yongjun Tang, Lei Deng
Aggregating evidences have shown that long non-coding RNAs (lncRNAs) generally play key roles in cellular biological processes such as epigenetic regulation, gene expression regulation at transcriptional and post-transcriptional levels, cell differentiation and others. However, most lncRNAs have not been functionally characterized. There is an urgent need to develop computational approaches for function annotation of increasing available lncRNAs. In this article, we propose a global network-based method, KATZLGO, to predict the functions of human lncRNAs at large scale...
May 16, 2017: IEEE/ACM Transactions on Computational Biology and Bioinformatics
https://www.readbyqxmd.com/read/28534531/unravelling-the-biology-of-sclc-implications-for-therapy
#18
REVIEW
Joshua K Sabari, Benjamin H Lok, James H Laird, John T Poirier, Charles M Rudin
Small-cell lung cancer (SCLC) is an aggressive malignancy associated with a poor prognosis. First-line treatment has remained unchanged for decades, and a paucity of effective treatment options exists for recurrent disease. Nonetheless, advances in our understanding of SCLC biology have led to the development of novel experimental therapies. Poly [ADP-ribose] polymerase (PARP) inhibitors have shown promise in preclinical models, and are under clinical investigation in combination with cytotoxic therapies and inhibitors of cell-cycle checkpoints...
May 23, 2017: Nature Reviews. Clinical Oncology
https://www.readbyqxmd.com/read/28534518/cdk20-interacts-with-keap1-to-activate-nrf2-and-promotes-radiochemoresistance-in-lung-cancer-cells
#19
Q Wang, J Ma, Y Lu, S Zhang, J Huang, J Chen, J-X Bei, K Yang, G Wu, K Huang, J Chen, S Xu
Radiochemoresistance is considered the main cause of local recurrence and distant metastasis in lung cancer. However, the underlying mechanisms of radiochemoresistance remain to be uncovered. In this study, we determine the functions of cell cycle-related kinase (CDK20) in radiochemoresistance. CDK20 is a newly identified protein kinase, which plays critical roles in cell growth and proliferation in several types of cancer. Using tandem affinity purification technology, we provide evidences that CDK20 binds to the ubiquitin ligase Kelch-like ECH-associated protein 1 (KEAP1), which targets transcriptional factor nuclear factor erythroid-2-related factor 2 (NRF2) for degradation...
May 22, 2017: Oncogene
https://www.readbyqxmd.com/read/28534516/transcriptional-and-posttranscriptional-regulation-of-hoxa13-by-lncrna-hottip-facilitates-tumorigenesis-and-metastasis-in-esophageal-squamous-carcinoma-cells
#20
C Lin, Y Wang, Y Wang, S Zhang, L Yu, C Guo, H Xu
The long non-coding RNA, HOTTIP, has an important role in tumorigenesis. It is known that HOTTIP regulates HOX gene family; however, its regulatory mechanism in esophageal squamous cell carcinoma (ESCC) remains elusive. In this study, we investigated the role of HOTTIP in ESCC and observed that HOTTIP/HOXA13 was upregulated in ESCC and promoted cell proliferation and metastasis in vivo and in vitro. Interestingly, harboring a miR-30b-binding site, HOTTIP as a molecular sponge mainly regulated miR-30b level in the nucleus and modulated the repression of HOXA13 mediated by miR-30b in the cytoplasm, resulting in the positive HOTTIP/HOXA13 correlation...
May 22, 2017: Oncogene
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