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Experimental Cell Research

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https://www.readbyqxmd.com/read/29679592/multiple-coagulation-factor-deficiency-protein-2-as-a-crucial-component-in-metastasis-of-human-oral-cancer
#1
Megumi Fukamachi, Atsushi Kasamatsu, Yosuke Endo-Sakamoto, Kazuaki Fushimi, Hiroki Kasama, Manabu Iyoda, Yasuyuki Minakawa, Masashi Shiiba, Hideki Tanzawa, Katsuhiro Uzawa
Multiple coagulation factor deficiency protein 2 (MCFD2), a binding partner of lectin mannose binding 1 (LMAN1), causes combined deficiencies of coagulation factors V and VIII. MCFD2 function in inherited hematologic disorders is well elucidated; however, little is known about its role in human tumorigenesis. The aim of the current study was to investigate the states of MCFD2 in oral squamous cell carcinoma (OSCC). The expression of MCFD2 was up-regulated significantly in all cell lines examined. Evaluation of the cellular functions associated with tumoral metastasis showed that MCFD2 knockdown (shMCFD2) cells exhibited significantly lower cellular invasiveness and migration and higher cellular adhesion compared with shControl cells...
April 18, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29674112/cadherin-profiling-for-therapeutic-interventions-in-epithelial-mesenchymal-transition-emt-and-tumorigenesis
#2
REVIEW
Mintu Pal, Sourya Bhattacharya, Gazal Kalyan, Saugata Hazra
The major hallmarks of Epithelial-Mesenchymal Transition (EMT) is the loss of epithelial cell polarity and loss of expression of the cell- cell adhesion molecule like E-cadherin and acquired mesenchymal cells marker called N-Cadherin. This phenotypical changes of E-M plasticity of cells is extensively considered to be a crucial factor for tumor cells invasion and cancer metastasis; landmark events for transforming a locally growing tumor (benign tumor) into a systemic and live-threatening disease (malignant tumor)...
April 16, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29665354/prmt1-negatively-regulates-activation-induced-cell-death-in-macrophages-by-arginine-methylation-of-gapdh
#3
Jun-Ho Cho, Rana Lee, Eunju Kim, Yea Eun Choi, Eui-Ju Choi
Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is implicated in cell death in addition to a role as a glycolytic enzyme. In particular, when cells are exposed to cellular stressors involving nitric oxide (NO) production, GAPDH can undergo NO-induced S-nitrosylation and S-nitrosylated GAPDH has been shown to elicit apoptosis. However, the mechanism underlying the regulation of the pro-apoptotic function of GAPDH remains unclear. Here, we found that protein arginine methyltransferase 1 (PRMT1) mediated arginine methylation of GAPDH in primary bone marrow-derived macrophages in a NO-dependent manner...
April 14, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29665353/tripartite-motif-31-promotes-resistance-to-anoikis-of-hepatocarcinoma-cells-through-regulation-of-p53-ampk-axis
#4
Pengbo Guo, Yumin Qiu, Xiaomin Ma, Tao Li, Xiaoxiao Ma, Lihui Zhu, Yueke Lin, Lihui Han
Anoikis-resistance is an essential feature of cancer cells to obtain successful metastasis, whereas the molecular mechanism involved in this process of hepatocellular carcinoma (HCC) cells is not fully understood. Here we demonstrated that tripartite motif-containing (TRIM) 31, a new member of the TRIM family, was significantly upregulated in the anchorage-deprived HCC cells compared with their attached counterpart. When we blocked TRIM31 expression by its specific interference RNAs, the anoikis-resistance of HCC cells was significantly reversed...
April 14, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29656831/corrigendum-to-mir144-3p-inhibits-pmvecs-excessive-proliferation-in-angiogenesis-of-hepatopulmonary-syndrome-via-tie2-exp-cell-res-365-2018-24-32
#5
Congwen Yang, Keyi Lv, Bin Chen, Yong Yang, Xiangfa Ai, Hongfu Yu, Yihui Yang, Bin Yi, Kaizhi Lu
No abstract text is available yet for this article.
April 12, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29654742/the-e3-ligase-for-metastasis-associated-1-protein-trim25-is-targeted-by-microrna-873-in-hepatocellular-carcinoma
#6
Yu-Hui Li, Ming Zhong, Hong-Liang Zang, Xiao-Feng Tian
Tumor metastasis accounts for 90% of all cancer-related deaths. Epithelial to mesenchymal transition (EMT) considered to be centrally important in acquired resistance to chemotherapy and in progression of tumors to secondary organs. One of the important mediators of metastatic progression in hepatocellular carcinoma (HCC) is the metastasis associated protein 1 (MTA-1). We have earlier shown that in the context of HCC and normal liver cell lines, MTA-1 protein is actively stabilized in HCC cell lines and actively degraded in normal liver cells...
April 11, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29654741/rhbdf1-regulates-apc-mediated-stimulation-of-the-epithelial-to-mesenchymal-transition-and-proliferation-of-colorectal-cancer-cells-in-part-via-the-wnt-%C3%AE-catenin-signalling-pathway
#7
Huiping Yuan, Ran Wei, Yuhong Xiao, Yi Song, Jia Wang, Huihuan Yu, Ting Fang, Shengxun Mao, Wei Xu
The human rhomboid family-1 gene (RHBDF1) is an oncogene in breast and head and neck squamous cancers. Here, we show that RHBDF1 plays a significant role in colorectal cancer (CRC) formation and that the RHBDF1 expression level is higher in CRC than in corresponding normal tissues. Moreover, RHBDF1 promotes cell proliferation, invasion and migration in vitro. Furthermore, through overexpression and silencing of RHBDF1 and the mediator complex, our study demonstrates that RHBDF1 may positively regulate adenomatous polyposis coli (APC) in the Wnt/β-catenin signalling pathway to increase the expression levels of MMP-14 and Twist, which act as important epithelial-to-mesenchymal transition (EMT) stimulating factors...
April 11, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29653110/sirna-mediated-lrp-lr-knock-down-reduces-cellular-viability-of-malignant-melanoma-cells-through-the-activation-of-apoptotic-caspases
#8
Thalia M Rebelo, Leila Vania, Eloise Ferreira, Stefan F T Weiss
The 37kDa/67kDa laminin receptor (LRP/LR) is over-expressed in tumour cells and has been implicated in several tumourigenic processes such as metastasis and telomerase activation, however, more importantly the focus of the present study is on the maintenance of cellular viability and the evasion of apoptosis. The aim of the study was to investigate the role of LRP/LR on the cellular viability of early (A375) and late stage (A375SM) malignant melanoma cells. Flow cytometry and western blot analysis revealed that A375SM cells contain more cell-surface and total LRP/LR levels in comparison to the A375 cells, respectively...
April 10, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29649428/connections-of-annexin-a1-and-translocator-protein-18-kda-on-toll-like-receptor-stimulated-bv-2-cells
#9
Lorena Pantaleão, Gustavo Henrique Oliveira da Rocha, Chris Reutelingsperger, Manoela Tiago, Silvya Stucchi Maria-Engler, Egle Solito, Sandra P Farsky
BACKGROUND: Annexin A1 (ANXA1) and Translocator Protein-18KDa (TSPO) down-regulate neuroinflammation. We investigated the role of recombinant ANXA1 (rANXA) on TSPO functions on Toll Like Receptor (TLR) activated microglia. METHODS: BV-2 cells (murine microglia), were stimulated by E. coli Lipopolysaccharide (LPS) and treated with rANXA1 in order to measure TSPO expression and inflammatory parameters. Anti-sense ANXA1 and TLR4 and TSPO shRNA, as well as pharmacological treatments, were employed to assess the mechanisms involved...
April 9, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29649427/vegfr-3-signaling-is-regulated-by-a-g-protein-activator-activator-of-g-protein-signaling-8-in-lymphatic-endothelial-cells
#10
Miho Sakima, Hisaki Hayashi, Abdullah Al Mamun, Motohiko Sato
Vascular endothelial growth factor C (VEGFC) and its cognate receptor VEGFR-3 play a key role in lymphangiogenesis. We previously reported that an ischemia-inducible Gβγ signal regulator, activator of G-protein signaling 8 (AGS8), regulated the subcellular distribution of vascular endothelial growth factor receptor-2 (VEGFR-2) and influenced VEGFA-induced signaling in vascular endothelial cells. Here, we report that AGS8 regulates VEGFR-3, which is another subtype of the VEGF receptor family, and mediates VEGFC signaling in human dermal lymphatic endothelial cells (HDLECs)...
April 9, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29630893/regulation-of-vdac1-contributes-to-the-cardioprotective-effects-of-penehyclidine-hydrochloride-during-myocardial-ischemia-reperfusion
#11
Duomao Lin, Boqun Cui, Jiayue Ren, Jun Ma
Penehyclidine hydrochloride (PHC) preconditioning can alleviate myocardial ischemia/reperfusion (I/R) injury and inhibits the upregulation of voltage-dependent anion channel 1 (VDAC1) during I/R. To validate that VDAC1 is a bona fide target of PHC for the protection against myocardial I/R injury, VDAC1 expression construct was delivered by lentiviruses into rat left ventricular myocardium before PHC preconditioning and myocardial I/R. Overexpression of VDAC1 exacerbated cardiac dysfunction and myocardial injury following I/R, and abolished the cardioprotective effect of PHC during I/R injury...
April 6, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29627321/reduced-substrate-stiffness-promotes-m2-like-macrophage-activation-and-enhances-peroxisome-proliferator-activated-receptor-%C3%AE-expression
#12
Takayuki Okamoto, Yoshimi Takagi, Eiji Kawamoto, Eun Jeong Park, Haruki Usuda, Koichiro Wada, Motomu Shimaoka
The increased stiffness of the extracellular microenvironment observed in cancer and atherosclerosis is thought to regulate the activation of tissue-resident immune cells. However, it remains to be determined whether such substrate stiffness affects macrophage activation phenotypes. Here, we have studied the impact of substrate stiffness on in vitro activation phenotypes of the human monocyte cell line THP-1. THP-1 cells were activated while being cultured on 1%, 4%, 10% agarose gel (soft substrate) or on a plastic plate (stiff substrate)...
April 5, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29627320/trim24-promotes-hepatocellular-carcinoma-progression-via-ampk-signaling
#13
Yefan Zhu, Liang Zhao, Keqing Shi, Zitao Huang, Bicheng Chen
Hepatocellular carcinoma (HCC) is one of the most common cancers diagnosed worldwide. However, the mechanism underlying HCC pathogenesis remains unknown. In the present study, TRIM24 was found increased in human HCC clinical samples and positively correlated with HCC tumor grade. Furthermore, TRIM24 knockdown inhibits proliferation and migration in a human HCC cell line in vitro while also inhibiting tumor growth in vivo. Mechanistically, TRIM24 appears to promote liver tumor development via AMPK signaling as AMPK knockdown alleviated the in vitro and in vivo effects of TRIM24 knockdown in a human HCC cell line...
April 5, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29625086/tr1-responses-are-elevated-in-asymptomatic-h-pylori-infected-individuals-and-are-functionally-impaired-in-h-pylori-gastric-cancer-patients
#14
Zongchang Song, Tongxia Zhang, Guang Li, Ying Tang, Yan Luo, Genhua Yu
Gastric cancer is one of the most lethal malignancies worldwide. Chronic Helicobacter pylori (H. pylori) infection can induce an inflammatory response that promotes atrophic gastritis, a preceding event to cancer development. The type 1 regulatory T (Tr1) cells have recently emerged as a critical participant in maintaining self-tolerance. In this study, we examined Tr1 cells in H. pylori infection and gastric cancer development. While H. pylori-uninfected (uninfected) subjects presented low Tr1 frequency in the peripheral blood, H...
April 3, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29625085/progranulin-ameliorates-coxsackievirus-b3-induced-viral-myocarditis-by-downregulating-th1-and-th17-cells
#15
Li Li, Ling Li, Lili Xiao, Jiahong Shangguan
Viral myocarditis, which is caused by Coxsackievirus B3 (CVB3) infection, is a leading reason of sudden cardiac death in young adults. Progranulin (PGRN), a pleiotropic growth factor, has been shown to exert anti-inflammatory function in a variety of inflammatory diseases. However, the expression and function of PGRN in the pathogenesis of viral myocarditis remain largely unknown. In this study, we found that PGRN levels in plasma and cardiac tissues were significantly upregulated post CVB3 infection, and negative correlated with disease severity...
April 3, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29621478/hyperglycemia-induced-bcl-2-bax-mediated-apoptosis-of-schwann-cells-via-mtorc1-s6k1-inhibition-in-diabetic-peripheral-neuropathy
#16
Lin Zhu, Jun Hao, Meijuan Cheng, Cuihong Zhang, Chunxiu Huo, Yaping Liu, Wei Du, Xianghong Zhang
Schwann cell apoptosis is one of the characteristics of diabetic peripheral neuropathy (DPN). The mammalian target of rapamycin (mTOR) is a multifunctional signaling pathway that regulates cell apoptosis in various types of tissues and cells. To investigate whether the mTOR pathway is involved in cell apoptosis in the Schwann cells of DPN, diabetic mice and rat Schwann cells (RSC96) were chosen to detect phospho-mTOR (Ser 2448), phospho-S6K1 (Thr 389), phospho-4EBP1 (Thr 37/46), Bcl-2, Bax and cleaved caspase-3 by diverse pathological and biological techniques...
April 2, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29614312/diacylglycerol-lipase-alpha-promotes-tumorigenesis-in-oral-cancer-by-cell-cycle-progression
#17
Yasuhiko Okubo, Atsushi Kasamatsu, Masanobu Yamatoji, Kazuaki Fushimi, Takashi Ishigami, Toshihiro Shimizu, Hiroki Kasama, Masashi Shiiba, Hideki Tanzawa, Katsuhiro Uzawa
Diacylglycerol lipase alpha (DAGLA), which catalyzes the hydrolysis of diacylglycerol to 2-arachidonoylglycerol and free fatty acid, is required for axonal growth during the brain development and for retrograde synaptic signaling at mature synapses. So far, no information was found regarding the possible role of DAGLA in human tumorigenesis. Thus, the current study sought to clarify the contribution of DAGLA in oral squamous cell carcinomas (OSCCs) and assess the clinical possibilities for OSCC treatment. Using real-time quantitative reverse transcription-polymerase chain reaction, immunoblotting, and immunohistochemistry, we found a significant up-regulation of DAGLA in OSCCs compared with normal cells and tissues both at mRNA and protein expression levels...
March 31, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29614311/mir-138-sirt1-axis-is-implicated-in-impaired-learning-and-memory-abilities-of-cerebral-ischemia-reperfusion-injured-rats
#18
Feng Tian, Chao Yuan, Hongmei Yue
The present study aimed to explore whether deregulated miR-138 is implicated in cerebral I/R injury-impaired learning and memory abilities. Rats were subjected to bilateral common carotid occlusion followed by reperfusion to induce cerebral I/R injury. A model of oxygen-glucose deprivation and reperfusion (OGD/R) was conducted to mimic cerebral I/R conditions in vitro. MiR-138 expression levels were reduced in the hippocampus of cerebral I/R injured rats. Inhibition of miR-138 ameliorated the impaired learning and memory abilities of rats, and promoted autophagy and thus attenuated apoptosis in the OGD/R-treated hippocampal neurons...
March 31, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29614310/cxcl12-gene-engineered-endothelial-progenitor-cells-further-improve-the-functions-of-oligodendrocyte-precursor-cells
#19
Fang Yuan, Shuang Chang, Longlong Luo, Yaning Li, Liping Wang, Yaying Song, Meijie Qu, Zhijun Zhang, Guo-Yuan Yang, Yongting Wang
Oligodendrocyte precursor cells (OPCs) are needed for white matter repair after various brain injury. Means that promote OPC functions could benefit white matter recovery after injury. Chemokine CXCL12 and endothelial progenitor cells (EPCs) both have been shown to promote remyelination. We hypothesize that the beneficial effects of EPCs and CXCL12 can be harnessed by genetically modifying EPCs with cxcl12 to synergistically improve the functions of OPCs. In this work, CXCL12-EPC was generated using virus-mediated gene transfer...
March 31, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29608916/overexpression-of-mir-133-decrease-primary-endothelial-cells-proliferation-and-migration-via-fgfr1-targeting
#20
Mina Soufi Zomorrod, Fatemeh Kouhkan, Masoud Soleimani, Amir Aliyan, Nooshin Tasharrofi
Angiogenesis is one of the essential hallmarks of cancer that is controlled by the balance between positive and negative regulators. FGFR1 signaling is crucial for the execution of bFGF-induced proliferation, migration, and tube formation of endothelial cells (ECs) and onset of angiogenesis on tumors. The purpose of this study is to identify whether or not miR-133 regulates FGFR1 expression and accordingly hypothesize if it plays a crucial role in modulating bFGF/FGFR1 activity in ECs and blocking tumor angiogenesis through targeting FGFR1...
March 30, 2018: Experimental Cell Research
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