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https://www.readbyqxmd.com/read/28535568/tianeptine-reduces-mechanical-allodynia-in-spinal-nerve-ligated-and-chemotherapy-induced-neuropathic-mice
#1
Seong Min Han, Young Hoon Kim, Hyeon Uk Jo, Jung Ah Kwak, Hue Jung Park
BACKGROUND: Spinal nerve-ligated neuropathy and chemotherapy-induced neuropathy produce a persistent tactile allodynia in mice. Tianeptine is an antidepressant that exhibits structural similarities to tricyclic antidepressants but has distinct neurochemical properties. OBJECTIVE: Here we examined the effects of intraperitoneal (i.p.) tianeptine on allodynia in spinal nerve-ligated and chemotherapy-induced neuropathic mice. STUDY DESIGN: A randomized, experimental trial...
May 2017: Pain Physician
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/28535509/erythropoietin-inhibits-hypoxia-induced-epithelial-to-mesenchymal-transition-via-upregulation-of-mir-200b-in-hk-2-cells
#3
Jiuxu Bai, Xiao Xiao, Xiaoling Zhang, Hanmin Cui, Junfeng Hao, Jingming Han, Ning Cao
BACKGROUND/AIMS: Renal tubular epithelial-mesenchymal transition (EMT) is regarded as an important factor leading to renal interstitial fibrosis. Erythropoietin (EPO) has been reported to attenuate renal fibrosis. The mechanism underlying this protective effect of EPO remains unclear. In this study, we aim to identify possible mechanisms of the EPO renoprotective effect. METHODS: Hypoxia was induced in vitro by incubating human proximal tubular epithelial cell line HK-2 cells in 1% O2 and 5% CO2...
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
#4
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
#5
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/28535205/a-transcriptional-serenaid-the-role-of-noncoding-rnas-in-class-switch-recombination
#6
William T Yewdell, Jayanta Chaudhuri
During an immune response, activated B cells may undergo class switch recombination (CSR), a molecular rearrangement that allows B cells to switch from expressing IgM and IgD to a secondary antibody heavy chain isotype such as IgG, IgA, or IgE. Secondary antibody isotypes provide the adaptive immune system with distinct effector functions to optimally combat various pathogens. CSR occurs between repetitive DNA elements within the immunoglobulin heavy chain (Igh) locus, termed switch (S) regions, and requires the DNA modifying enzyme activation-induced cytidine deaminase (AID)...
May 23, 2017: International Immunology
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/28534999/mir-370-regulates-cell-proliferation-and-migration-by-targeting-egfr-in-gastric-cancer
#8
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/28534995/low%C3%A2-level-mechanical-vibration-enhances-osteoblastogenesis-via-a-canonical-wnt-signaling%C3%A2-associated-mechanism
#9
Heqi Gao, Mingming Zhai, Pan Wang, Xuhui Zhang, Jing Cai, Xiaofei Chen, Guanghao Shen, Erping Luo, Da Jing
Osteoporosis is a skeletal metabolic disease characterized by reduced bone mass and a high susceptibility to fractures, in which osteoblasts and osteoclasts are highly involved in the abnormal bone remodeling processes. Recently, low‑magnitude, high‑frequency whole‑body vibration has been demonstrated to significantly reduce osteopenia experimentally and clinically. However, the underlying mechanism regarding how osteoblastic activity is altered when bone tissues adapt to mechanical vibration remains elusive...
May 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534986/overexpression-of-sox4-promotes-cell-migration-and-invasion-of-renal-cell-carcinoma-by-inducing-epithelial-mesenchymal-transition
#10
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/28534985/microarray-analysis-of-differentially-expressed-genes-in-l929-mouse-fibroblast-cells-exposed-to-leptin-and-hypoxia
#11
Ping Ouyang, Sen Wang, He Zhang, Zhigang Huang, Pei Wei, Ye Zhang, Zhuguo Wu, Tao Li
Leptin and hypoxia are pro-fibrotic factors involved in fibrogenesis, however, the gene expression profiles remain to be fully elucidated. The aim of the present study was to investigate the regulatory roles of leptin and hypoxia on the L929 mouse fibroblast cell line. The cells were assigned to a normoxia, normoxia with leptin, hypoxia, and hypoxia with leptin group. The cDNA expression was detected using an Agilent mRNA array platform. The differentially expressed genes (DEGs) in response to leptin and hypoxia were identified using reverse transcription‑quantitative polymerase chain reaction analysis, followed by clustering analysis, Gene Ontology analysis and pathway analysis...
May 17, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28534977/runx3-modulates-hypoxia-induced-endothelial-to-mesenchymal-transition-of-human-cardiac-microvascular-endothelial-cells
#12
Yanhua Liu, Jin Zou, Bingong Li, Yuqin Wang, Delong Wang, Yanqin Hao, Xuan Ke, Xingxing Li
Endothelial-mesenchymal transition (EndMT) is an essential mechanism in the cardiovascular system, for both cardiovascular development and cardiovascular diseases (CVDs). Recent studies indicate that runt-related transcription factor 3 (RUNX3) contributes to EndMT and endothelial cell dysfunction. However, the underlying molecular mechanism remains unknown. The present study was designed to investigate the role of RUNX3 in EndMT and endothelial cell function, and to elucidate the underlying molecular mechanism...
May 22, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28534958/mir-204-regulates-the-biological-behavior-of-breast-cancer-mcf-7-cells-by-directly-targeting-foxa1
#13
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
#14
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/28534933/cuedc2-suppresses-glioma-tumorigenicity-by-inhibiting-the-activation-of-stat3-and-nf-%C3%AE%C2%BAb-signaling-pathway
#15
Feng Li, Chuanxi Tang, Dan Jin, Li Guan, Yue Wu, Xinfeng Liu, Xiuxiang Wu, Qing Yun Wu, Dianshuai Gao
CUEDC2, a CUE domain containing 2 protein, plays critical roles in many biological processes, such as cell cycle, inflammation and tumorigenesis. However, whether CUEDC2 was involved in tumorigenesis of glioma and the possible mechanism remains to be elucidated. In the present study, our results implied that the expression of CUEDC2 was lower in the glioma tissue and glioma cell lines than that of normal tissue and asctrocyte cells. Downregulation of endogenous CUEDC2 in glioma U251 cell lines by RNAi promoted the tumor cells proliferation, migration, invasion and glioma neurosphere formation, while, overexpression of CUEDC2 showed the opposite effect...
May 17, 2017: International Journal of Oncology
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/28534718/jasmonate-suppresses-seedling-soil-emergence-in-arabidopsis-thaliana
#17
Lulu Yao, Yuyu Zheng, Ziqiang Zhu
In addition to defense response, phytohormone jasmonate participates in various plant growth and developmental processes. Nonetheless, its role in the seedling stage is not well defined. We recently report that jasmonate suppresses hypocotyl elongation and promotes cotyledon unfolding in etiolated Arabidopsis seedlings. The molecular basis underlying this phenotype is that jasmonate treatment reduces the biochemical activity of CONSTITUTIVE PHOTOMORPHOGENIC 1 (COP1) to stabilize several COP1-targetted transcription factors for eliciting a proportion of light responsive transcriptome...
May 23, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28534707/type-ia-topoisomerases-can-be-magicians-for-both-dna-and-rna-in-all-domains-of-life
#18
Muzammil Ahmad, Dongyi Xu, Weidong Wang
Topoisomerases solve critical topological problems in DNA metabolism and have long been regarded as the "magicians" of the DNA world. Here we present views from two of our recent studies indicating that Type IA topoisomerases from all domains of life often possess dual topoisomerase activities for both DNA and RNA. In animals, one of the two Type IA topoisomerases, Top3β, contains an RNA-binding domain, possesses RNA topoisomerase activity, binds mRNAs, interacts with mRNA-binding proteins, and associates with active mRNA translation machinery...
May 23, 2017: RNA Biology
https://www.readbyqxmd.com/read/28534531/unravelling-the-biology-of-sclc-implications-for-therapy
#19
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
#20
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
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