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Journal of Cellular and Molecular Medicine

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https://www.readbyqxmd.com/read/29164766/down-regulating-myoferlin-inhibits-the-vasculogenic-mimicry-of%C3%A2-melanoma-via-decreasing-mmp-2-and-inducing-mesenchymal-to-epithelial-transition
#1
Wenxue Zhang, Ping Zhou, Ai Meng, Rongxin Zhang, Yan Zhou
Vasculogenic mimicry (VM) constitutes a novel approach for tumour blood supply and contributes to tumour metastasis and poor prognosis in patients with melanoma. Myoferlin (MYOF), a type II membrane protein involved in membrane regeneration and repair, is elevated in several malignant tumours, especially in advanced melanomas. This study aims to investigate the role and mechanism of MYOF in the regulation of VM. VM structures were found in 14 of 52 tested melanoma samples, and high MYOF expression correlated with VM structures...
November 22, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29164763/tmem207-hinders-the-tumour-suppressor-function-of-wwox-in-oral-squamous-cell-carcinoma
#2
Katsuaki Bunai, Hiroshi Okubo, Kimika Hano, Keisuke Inoue, Yusuke Kito, Chiemi Saigo, Toshiyuki Shibata, Tamotsu Takeuchi
The WW domain-containing oxidoreductase (WWOX) functions as a tumour suppressor in oral carcinogenesis. As aberrant TMEM207 expression may lead to tumour progression by hampering the tumour suppressor function of WWOX in various cancers, we explored the expression and pathobiological properties of TMEM207, focusing on the WWOX-mediated regulation of the HIF-1α pathway in oral squamous cell carcinoma (OSCC). TMEM207 immunoreactivity was detected in 40 of 90 OSCC samples but not in neighbouring non-tumorous epithelial tissues...
November 22, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29160594/leptin-action-in-normal-and-pathological-pregnancies
#3
REVIEW
Antonio Pérez-Pérez, Ayelén Toro, Teresa Vilariño-García, Julieta Maymó, Pilar Guadix, José L Dueñas, Manuel Fernández-Sánchez, Cecilia Varone, Víctor Sánchez-Margalet
Leptin is now considered an important signalling molecule of the reproductive system, as it regulates the production of gonadotrophins, the blastocyst formation and implantation, the normal placentation, as well as the foeto-placental communication. Leptin is a peptide hormone secreted mainly by adipose tissue, and the placenta is the second leptin-producing tissue in humans. Placental leptin is an important cytokine which regulates placental functions in an autocrine or paracrine manner. Leptin seems to play a crucial role during the first stages of pregnancy as it modulates critical processes such as proliferation, protein synthesis, invasion and apoptosis in placental cells...
November 21, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29160038/endoplasmic-reticulum-in-health-and-disease-the-12th-international-calreticulin-workshop-delphi-greece
#4
REVIEW
Aristidis S Charonis, Marek Michalak, Jody Groenendyk, Luis B Agellon
Starting from 1994, every 2 years, an international workshop is organized focused on calreticulin and other endoplasmic reticulum chaperones. In 2017, the workshop took place at Delphi Greece. Participants from North and South America, Europe, Asia and Australia presented their recent data and discussed them extensively with their colleagues. Presentations dealt with structural aspects of calreticulin and calnexin, the role of Ca(2+) in cellular signalling and in autophagy, the endoplasmic reticulum stress and the unfolded protein response, the role of calreticulin in immune responses...
November 21, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29160030/dihydromyricetin-enhances-glucose-uptake-by-inhibition-of-mek-erk-pathway-and-consequent-down-regulation-of-phosphorylation-of-ppar%C3%AE-in-3t3-l1-cells
#5
Lei Liu, Min Zhou, Hedong Lang, Yong Zhou, Mantian Mi
Accumulating evidence suggests that inhibition of mitogen-activated protein kinase signalling can reduce phosphorylation of peroxisome proliferator-activated receptor γ (PPARγ) at serine 273, which mitigates obesity-associated insulin resistance and might be a promising treatment for type 2 diabetes. Dihydromyricetin (DHM) is a flavonoid that has many beneficial pharmacological properties. In this study, mouse fibroblast 3T3-L1 cells were used to investigate whether DHM alleviates insulin resistance by inhibiting PPARγ phosphorylation at serine 273 via the MEK/ERK pathway...
November 21, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29160014/loss-of-tenascin-x-gene-function-impairs-injury-induced-stromal-angiogenesis-in-mouse-corneas
#6
Takayoshi Sumioka, Hiroki Iwanishi, Yuka Okada, Yuka Nidegawa, Masayasu Miyajima, Ken-Ichi Matsumoto, Shizuya Saika
To determine the contribution by tenascin X (Tnx) gene expression to corneal stromal angiogenesis, the effects were determined of its loss on this response in TNX knockout (KO) mice. In parallel, the effects of such a loss were evaluated on vascular endothelial growth factor (VEGF) and transforming growth factor β1 (TGFβ1) gene and protein expression in fibroblasts and macrophages in cell culture. Histological, immunohistochemical and quantitative RT-PCR changes determined if Tnx gene ablation on angiogenic gene expression, inflammatory cell infiltration and neovascularization induced by central corneal stromal cauterization...
November 21, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29160009/mirna-in-spinal-muscular-atrophy-pathogenesis-and-therapy
#7
REVIEW
Francesca Magri, Fiammetta Vanoli, Stefania Corti
Spinal muscular atrophy (SMA) is an autosomal recessive neurodegenerative disease characterized by the selective death of lower motor neurons in the brain stem and spinal cord. SMA is caused by mutations in the survival motor neuron 1 gene (SMN1), leading to the reduced expression of the full-length SMN protein. microRNAs (miRNAs) are small RNAs that regulate post-transcriptional gene expression. Recent findings have suggested an important role for miRNAs in the pathogenesis of motor neuron diseases, including SMA...
November 21, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29159980/role-of-pi3k-in-myocardial-ischaemic-preconditioning-mapping-pro-survival-cascades-at-the-trigger-phase-and-at-reperfusion
#8
Xavier Rossello, Jaime A Riquelme, Sean M Davidson, Derek M Yellon
The Reperfusion Injury Salvage Kinase (RISK) pathway is considered the main pro-survival kinase cascade mediating the ischaemic preconditioning (IPC) cardioprotective effect. To assess the role of PI3K-Akt, its negative regulator PTEN and other pro-survival proteins such as ERK and STAT3 in the context of IPC, C57BL/6 mouse hearts were retrogradely perfused in a Langendorff system and subjected to 4 cycles of 5 min. ischaemia and 5 min. reperfusion prior to 35 min. of global ischaemia and 120 min. of reperfusion...
November 20, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29154475/identification-and-analysis-of-a-key-long-non-coding-rnas-lncrnas-associated-module-reveal-functional-lncrnas-in-cardiac-hypertrophy
#9
Jian Zhang, Chenchen Feng, Chao Song, Bo Ai, Xuefeng Bai, Yuejuan Liu, Xuecang Li, Jianmei Zhao, Shengshu Shi, Xin Chen, Xiaojie Su, Chunquan Li
Cardiac hypertrophy (CH) is a common disease that originates from long-term heart pressure overload and finally leads to heart failure. Recently, long non-coding RNAs (lncRNAs) have attracted attention because they have broad and crucial functions in regulating complex biological processes. Some studies had found that lncRNAs play vital roles in complex cardiovascular diseases. However, the function and mechanism of lncRNAs in CH have not been elucidated. In our study, to investigate the potential roles of lncRNAs in CH, the Cardiac Hypertrophy-associated LncRNAs-Protein coding genes Network (CHLPN) was constructed by integrating gene microarray re-annotation and subpathway enrichment analyses...
November 20, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29148269/salidroside-attenuates-neuroinflammation-and-improves-functional-recovery-after-spinal-cord-injury-through-microglia-polarization-regulation
#10
Chenggui Wang, Qingqing Wang, Yiting Lou, Jianxiang Xu, Zhenhua Feng, Yu Chen, Qian Tang, Gang Zheng, Zengjie Zhang, Yaosen Wu, Naifeng Tian, Yifei Zhou, Huazi Xu, Xiaolei Zhang
Spinal cord injury (SCI) is a severe neurological disease; however, few drugs have been proved to treat SCI effectively. Neuroinflammation is the major pathogenesis of SCI secondary injury and considered to be the therapeutic target of SCI. Salidroside (Sal) has been reported to exert anti-inflammatory effects in airway, adipose and myocardial tissue; however, the role of Sal in SCI therapeutics has not been clarified. In this study, we showed that Sal could improve the functional recovery of spinal cord in rats as revealed by increased BBB locomotor rating scale, angle of incline, and decreased cavity of spinal cord injury and apoptosis of neurons in vivo...
November 17, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29148232/disulfiram-combined-with-copper-inhibits-metastasis-and-epithelial-mesenchymal-transition-in-hepatocellular-carcinoma-through-the-nf-%C3%AE%C2%BAb-and-tgf-%C3%AE-pathways
#11
Yi Li, Li-Hui Wang, Hao-Tian Zhang, Ya-Ting Wang, Shuai Liu, Wen-Long Zhou, Xiang-Zhong Yuan, Tian-Yang Li, Chun-Fu Wu, Jing-Yu Yang
Late-stage hepatocellular carcinoma (HCC) usually has a low survival rate because of the high risk of metastases and the lack of an effective cure. Disulfiram (DSF) has copper (Cu)-dependent anticancer properties in vitro and in vivo. The present work aims to explore the anti-metastasis effects and molecular mechanisms of DSF/Cu on HCC cells both in vitro and in vivo. The results showed that DSF inhibited the proliferation, migration and invasion of HCC cells. Cu improved the anti-metastatic activity of DSF, while Cu alone had no effect...
November 17, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29148209/telocytes-in-the-human-sinoatrial-node
#12
Lubov B Mitrofanova, Andrey N Gorshkov, Petr V Konovalov, Julia S Krylova
The sinoatrial node (SAN) is composed mostly of pacemaker, transitional and Purkinje-like cells. Pacemaker cells, especially in the centre of the SAN, are surrounded by dense fibrous tissue and do not have any contact with transitional cells. We hypothesize that the SAN contains telocytes that have contacts with pacemaker cells and contractile myocardium. Immunohistochemistry using antibodies against HCN4 and antibody combinations against CD34 and HCN4 was carried out on 12 specimens. Confocal laser scanning microscopy (CLSM) with two mixtures of primary antibodies, namely CD34/S100 and vimentin/S100, was performed in three cases...
November 17, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29148173/metformin-protects-against-intestinal-barrier-dysfunction-via-ampk%C3%AE-1-dependent-inhibition-of-jnk-signalling-activation
#13
Jun Deng, Lishan Zeng, Xueying Lai, Jing Li, Le Liu, Qianyun Lin, Ye Chen
Disruption of the intestinal epithelial barrier, that involves the activation of C-Jun N-terminal kinase (JNK), contributes to initiate and accelerate inflammation in inflammatory bowel disease. Metformin has unexpected beneficial effects other than glucose-lowering effects. Here, we provided evidence that metformin can protect against intestinal barrier dysfunction in colitis. We showed that metformin alleviated dextran sodium sulphate (DSS)-induced decreases in transepithelial electrical resistance, FITC-dextran hyperpermeability, loss of the tight junction (TJ) proteins occludin and ZO-1 and bacterial translocation in Caco-2 cell monolayers or in colitis mice models...
November 17, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29134745/mechanosignalling-in-tumour-progression
#14
EDITORIAL
Antonios N Gargalionis, Efthimia K Basdra, Athanasios G Papavassiliou
No abstract text is available yet for this article.
November 14, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29119680/nicorandil-regulates-the-macrophage-skewing-and-ameliorates-myofibroblasts-by-inhibition-of-rhoa-rho-kinase-signalling-in-infarcted-rats
#15
Tsung-Ming Lee, Shinn-Zong Lin, Nen-Chung Chang
We have demonstrated that ATP-sensitive potassium (KATP ) channel agonists attenuated fibrosis; however, the mechanism remained unclear. Since RhoA has been identified as a mediator of cardiac fibrosis, we sought to determine whether the anti-fibrotic effects of KATP channel agonists were mediated via regulating macrophage phenotype and fibroblast differentiation by a RhoA/RhoA-kinase-dependent pathway. Wistar male rats after induction of myocardial infarction were randomized to either vehicle, nicorandil, an antagonist of KATP channel glibenclamide, an antagonist of ROCK fasudil, or a combination of nicorandil and glibenclamide or fasudil and glibenclamide starting 24 hrs after infarction...
November 9, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29106036/inhibition-of-mitochondrial-complex-i-improves-glucose-metabolism-independently-of-ampk-activation
#16
Wo-Lin Hou, Jun Yin, Miriayi Alimujiang, Xue-Ying Yu, Li-Gen Ai, Yu-Qian Bao, Fang Liu, Wei-Ping Jia
Accumulating evidences showed metformin and berberine, well-known glucose-lowering agents, were able to inhibit mitochondrial electron transport chain at complex I. In this study, we aimed to explore the antihyperglycaemic effect of complex I inhibition. Rotenone, amobarbital and gene silence of NDUFA13 were used to inhibit complex I. Intraperitoneal glucose tolerance test and insulin tolerance test were performed in db/db mice. Lactate release and glucose consumption were measured to investigate glucose metabolism in HepG2 hepatocytes and C2C12 myotubes...
November 6, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29106032/the-effects-of-conditioned-media-generated-by-polarized-macrophages-on-the-cellular-behaviours-of-bone-marrow-mesenchymal-stem-cells
#17
Xiao-Tao He, Xuan Li, Yuan Yin, Rui-Xin Wu, Xin-Yue Xu, Fa-Ming Chen
Macrophages (Mφs) are involved in a variety of physiological and pathological events including wound healing and tissue regeneration, in which they play both positive and negative roles depending on their polarization state. In this study, we investigated the cellular behaviours of bone marrow mesenchymal stem cells (BMMSCs) after incubation in different conditioned media (CMs) generated by unpolarized Mφs (M0) or polarized Mφs (M1 and M2). Mφ polarization was induced by stimulation with various cytokines, and CMs were obtained from in vitro Mφ cultures termed CM0, CM1 and CM2 based on each Mφ phenotype...
November 6, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29105957/supplementary-choline-attenuates-olive-oil-lipid-emulsion-induced-enterocyte-apoptosis-through-suppression-of-celf1-aif-pathway
#18
Jun-Kai Yan, Jie Zhu, Zi-Zhen Gong, Jie Wen, Yong-Tao Xiao, Tian Zhang, Wei Cai
Enterocyte apoptosis induced by lipid emulsions is a key cause of intestinal atrophy under total parenteral nutrition (TPN) support, and our previous work demonstrated that olive oil lipid emulsion (OOLE) could induce enterocyte apoptosis via CUGBP, Elav-like family member 1 (CELF1)/ apoptosis-inducing factor (AIF) pathway. As TPN-associated complications are partially related to choline deficiency, we aimed to address whether choline supplementation could attenuate OOLE-induced enterocyte apoptosis. Herein we present evidence that supplementary choline exhibits protective effect against OOLE-induced enterocyte apoptosis both in vivo and in vitro...
November 6, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29105282/escitalopram-oxalate-induces-apoptosis-in-u-87mg-cells-and-autophagy-in-gbm8401-cells
#19
Vincent Chin-Hung Chen, Yi-Hsien Hsieh, Li-Jeng Chen, Tsai-Ching Hsu, Bor-Show Tzang
Glioblastoma multiforme (GBM) is recognized as a most aggressive brain cancer with the worst prognosis and survival time. Owing to the anatomic location of gliomas, surgically removing the tumour is very difficult and avoiding damage to vital brain regions during radiotherapy is impossible. Therefore, therapeutic strategies for malignant glioma must urgently be improved. Recent studies have demonstrated that selective serotonin reuptake inhibitors (SSRIs) have cytotoxic effect on certain cancers. Considering as a more superior SSRI, escitalopram oxalate exhibits favourable tolerability and causes generally mild and temporary adverse events...
November 3, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29105277/effect-of-human-amniotic-epithelial-cells-on-pro-fibrogenic-resident-hepatic-cells-in-a-rat-model-of-liver-fibrosis
#20
Anna Cargnoni, Serafina Farigu, Ester Cotti Piccinelli, Patrizia Bonassi Signoroni, Pietro Romele, Graziella Vanosi, Ivan Toschi, Valentina Cesari, Luciana Barros Sant'Anna, Marta Magatti, Antonietta R Silini, Ornella Parolini
Myofibroblasts are key fibrogenic cells responsible for excessive extracellular matrix synthesis characterizing the fibrotic lesion. In liver fibrosis, myofibroblasts derive either from activation of hepatic stellate cells (HSC) and portal fibroblasts (PF), or from the activation of fibroblasts that originate from ductular epithelial cells undergoing epithelial-mesenchymal transition. Ductular cells can also indirectly promote myofibroblast generation by activating TGF-β, the main fibrogenic growth factor, through αvβ6 integrin...
November 3, 2017: Journal of Cellular and Molecular Medicine
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