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https://www.readbyqxmd.com/read/29232002/effects-of-microrna-93-on-mouse-cardiac-microvascular-endothelial-cells-injury-and-inflammatory-response-by-mediating-spp1-through-the-nf-%C3%AE-b-pathway
#1
Su-Xia Ma, Zhi-Feng Bai, Wei Wang, Hui-Ying Wu
BACKGROUND: This study aims to investigate the regulative role of microRNA-93 (miR-93) in mouse cardiac microvascular endothelial cells (CMECs) injury and inflammatory response by negatively targeting SPP1 gene via the NF-κB signaling pathway. METHODS: Healthy Balb/c mice were recruited to establish mouse model with myocarditis using CVB3 virus. Mice were grouped into the normal, blank, negative control (NC), miR-93 inhibitor, miR-93 mimic, SPP1 shRNA and miR-93 mimic + SPP1 shRNA groups...
December 12, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29231999/gant-61-and-gdc-0449-induce-apoptosis-of-prostate-cancer-stem-cells-through-a-gli-dependent-mechanism
#2
Wangxia Tong, Lei Qiu, Meng Qi, Jianbing Liu, Kaihui Hu, Wenxiong Lin, Yan Huang, Junsheng Fu
Aberrant reactivation of the Sonic Hedgehog (SHH) signaling pathway promotes prostate cancer (PC) growth and progression by regulating cancer-related genes through its downstream effectors GLI1 and GLI2. Therefore, targeting the SHH-GLI pathway provides an alternative approach to avoid cancer progression. The aim of this study was to delineate the underlying molecular mechanisms by which GDC-0449 (a SMO receptor inhibitor) and GANT-61 (a GLI transcription factor inhibitor) regulate cellular proliferation and self-renewal in human PC stem cells (ProCSCs)...
December 12, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29231252/lncrna-ccat1-contributes-to-the-growth-and-invasion-of-gastric-cancer-via-targeting-mir-219-1
#3
Yanfeng Li, Guanyu Zhu, Yan Ma, Hongyan Qu
Gastric cancer (GC) is one of the most malignant tumors that seriously threaten to human health. Increased reports indicated that long non-coding RNAs (lncRNAs) were associated with GC. This study aims to investigate the regulatory role of colon cancer associated transcript-1 (CCAT1) in GC. The results exhibited that CCAT1 was higher expressed in 57 GC tissue samples than in 57 paired adjacent normal tissue samples. The expression of CCAT1 was also increased in GC cell lines (MKN45, Hs746T and SGC-7901) compared with gastric epithelial cell line GES-1...
December 12, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29229604/transcription-factor-activities-enhance-markers-of-drug-sensitivity-in-cancer
#4
Luz M Garcia-Alonso, Francesco Iorio, Angela Matchan, Nuno A Fonseca, Patricia Jaaks, Gareth Peat, Miguel Pignatelli, Fiammetta Falcone, Cyril H Benes, Ian Dunham, Graham R Bignell, Simon McDade, Mathew J Garnett, Julio Saez-Rodriguez
Transcriptional dysregulation induced by aberrant Transcription factors (TFs) is a key feature of cancer, but its global influence on drug sensitivity has not been examined. Here we infer the transcriptional activity of 127 TFs through analysis of RNA-seq gene expression data newly generated for 448 cancer cell lines, combined with publicly available datasets to survey a total of 1,056 cancer cell lines and 9,250 primary tumors. Predicted TF activities are supported by their agreement with independent shRNA essentiality profiles and homozygous gene deletions, and recapitulate mutant-specific mechanisms of transcriptional dysregulation in cancer...
December 11, 2017: Cancer Research
https://www.readbyqxmd.com/read/29228727/prohibitin-mediated-mitochondrial-ubiquitination-during-spermiogenesis-in-chinese-mitten-crab-eriocheir-sinensis
#5
Cong-Cong Hou, Chao-Guang Wei, Cheng-Peng Lu, Xin-Ming Gao, Wan-Xi Yang, Jun-Quan Zhu
The sperm of Eriocheir sinensis has a cup-shaped nucleus that contains several mitochondria embedded at the opening of the cup. The acrosome vesicle also contains derivants of mitochondria. The mitochondria distribution pattern involves a decrease in the number and changes in the structure and transportation of these organelles. The decreased number of sperm mitochondria is achieved through autophagy or the ubiquitination pathway. Prohibitin (PHB), the mitochondria inner membrane protein, is an evolutionarily highly conserved protein, is closely associated with spermatogenesis and sperm quality control and is also a potential substrate of ubiquitination...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228705/yap1-inhibition-radiosensitizes-triple-negative-breast-cancer-cells-by-targeting-the-dna-damage-response-and-cell-survival-pathways
#6
Daniel Andrade, Meghna Mehta, James Griffith, Janani Panneerselvam, Akhil Srivastava, Tae-Dong Kim, Ralf Janknecht, Terence Herman, Rajagopal Ramesh, Anupama Munshi
The Hippo pathway is an evolutionarily conserved signaling pathway that regulates proliferation and apoptosis to control organ size during developmental growth. Yes-associated protein 1 (YAP1), the terminal effector of the Hippo pathway, is a transcriptional co-activator and a potent growth promoter that has emerged as a critical oncogene. Overexpression of YAP1 has been implicated in promoting resistance to chemo-, radiation and targeted therapy in various cancers. However, the role of YAP1 in radioresistance in triple-negative breast cancer (TNBC) is currently unknown...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228678/high-expression-of-pdlim5-facilitates-cell-tumorigenesis-and-migration-by-maintaining-ampk-activation-in-prostate-cancer
#7
Xi Liu, Lu Chen, Hai Huang, Jian-Min Lv, Ming Chen, Fa-Jun Qu, Xiu-Wu Pan, Lin Li, Lei Yin, Xin-Gang Cui, Yi Gao, Dan-Feng Xu
PDZ and LIM domain 5 (PDLIM5) is a cytoskeleton-associated protein and has been shown to bind to a variety of proteins through its specific domain, thereby acting to regulate cell migration and tumor progression. Here, we found that PDLIM5 was abnormally upregulated in prostate cancer (PCa) tissues as compared with that in normal prostate tissue. ONCOMINE microarray data mining showed that PDLIM5 was closely correlated with the prognosis of PCa in terms of Gleason score, tumor metastasis and biochemical recurrence...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228674/the-regulatory-role-of-aberrant-phosphatase-and-tensin-homologue-and-liver-kinase-b1-on-akt-mtor-c-myc-axis-in-pancreatic-neuroendocrine-tumors
#8
Tsung-Ming Chang, Yan-Shen Shan, Pei-Yi Chu, Shih Sheng Jiang, Wen-Chun Hung, Yu-Lin Chen, Hsiu-Chi Tu, Hui-You Lin, Hui-Jen Tsai, Li-Tzong Chen
Pancreatic neuroendocrine tumor (pNET) is an uncommon type of pancreatic neoplasm. Low Phosphatase and Tensin Homologue (PTEN) expression and activation of the mechanistic target of rapamycin (mTOR) pathway have been noted in pNETs, and the former is associated with poor survival in pNET patients. Based on the results of the RADIANT-3 study, everolimus, an oral mTOR inhibitor, has been approved to treat advanced pNETs. However, the exact regulatory mechanism for the mTOR pathway in pNETs remains largely unknown...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228610/targeting-polo-like-kinase-1-in-smarcb1-deleted-atypical-teratoid-rhabdoid-tumor
#9
Irina Alimova, Angela M Pierce, Peter Harris, Andrew Donson, Diane K Birks, Eric Prince, Ilango Balakrishnan, Nicholas K Foreman, Marcel Kool, Lindsey Hoffman, Sujatha Venkataraman, Rajeev Vibhakar
Atypical teratoid rhabdoid tumor (ATRT) is an aggressive and malignant pediatric brain tumor. Polo-like kinase 1 (PLK1) is highly expressed in many cancers and essential for mitosis. Overexpression of PLK1 promotes chromosome instability and aneuploidy by overriding the G2-M DNA damage and spindle checkpoints. Recent studies suggest that targeting PLK1 by small molecule inhibitors is a promising approach to tumor therapy. We investigated the effect of PLK1 inhibition in ATRT. Gene expression analysis showed that PLK1 was overexpressed in ATRT patient samples and tumor cell lines...
November 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228586/targeting-intercellular-adhesion-molecule-1-prolongs-survival-in-mice-bearing-bevacizumab-resistant-glioblastoma
#10
Yuji Piao, Verlene Henry, Ningyi Tiao, Soon Young Park, Juan Martinez-Ledesma, Jian Wen Dong, Veerakumar Balasubramaniyan, John F de Groot
Intercellular cell adhesion molecule 1 (ICAM-1; also known as CD54) is overexpressed in bevacizumab-resistant glioblastoma. In the present study, we tested our hypothesis that highly expressed ICAM-1 mediates glioblastoma's resistance to antiangiogenic therapy. We validated ICAM-1 overexpression in tumors resistant to antiangiogenic therapy using real-time polymerase chain reaction, immunohistochemistry, and Western blotting. We also detected ICAM1 expression in most glioma stem cells (GSCs). We investigated the mechanism of ICAM-1 overexpression after bevacizumab treatment and found that ICAM-1 protein expression was markedly increased in a time-dependent manner in GSC11 and GSC17 cells under hypoxic conditions in vitro...
November 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228560/mertk-is-a-novel-therapeutic-target-in-gastric-cancer
#11
Jun Ho Yi, Jiryeon Jang, Jeonghee Cho, In-Gu Do, Mineui Hong, Seung Tae Kim, Kyoung-Mee Kim, Sujin Lee, Se Hoon Park, Joon Oh Park, Young Suk Park, Won Ki Kang, Ho Yeong Lim, Jeeyun Lee
Introduction: The role of MerTK has not been assessed in gastric cancer (GC). The aim of this study was to identify a subgroup of GC patients with MerTK tumor overexpression, and to evaluate MerTK as a potential therapeutic target in this disease. Methods: Protein and mRNA expression of MerTK were evaluated, and other various in vitro analyses including shRNA transfection, cell cycle anslysis, MTS assay and colony forming assay were carried out with GC cell lines and GC patient-derived cells (PDCs)...
November 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/29227545/overexpression-of-sirt6-is-a-novel-biomarker-of-malignant-human-colon-carcinoma
#12
Chang-Hui Geng, Chun-Ling Zhang, Jing-Yan Zhang, Ping Gao, Miao He, Yan-Lin Li
Sirt family has been reported playing a significant role in the cancer develop, special its deacetylase activity plays a key function, but whether SIRT6 plays a role in mediating tumor EMT and metastasis in colon cancer has not been explored. Here, the mass spectrometry and co-immunoprecipitation assays were utilized to detect that SIRT6 was physically associated with transcription factor snail. Most important, HCT116 cells transfected with SIRT6 shRNA reversed EMT, while increased the expression of TET1, and the HCT116 cells transfected with SIRT6 displayed the contrary tendency...
December 11, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29226963/effect-of-cdk1-shrna-on-proliferation-migration-cell-cycle-and-apoptosis-in-non-small-cell-lung-cancer
#13
Shenglan Pu, Yan Zhao, Guoqi Zhou, Honglan Zhu, Ling Gong, Wei Zhang, Guichuan Huang, Daoxin Wang, Daishun Liu
OBJECTIVE: In this study, we aimed to investigate the effect of CDK1 shRNA on proliferation, migration, cell cycle and apoptosis in non-small cell lung cancer. METHODS: Protein expressions of CDK1 in HCC827 cells were measured by western blot. CCK-8 and clone formation assay was used to detect the growth and proliferation of cells. Wound healing assay was carried out to determine the migration ability of HCC cells in shRNA group, followed by flow cytometry, detecting the variation of HCC827 cell cycle and apoptosis...
December 11, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29222622/toll-like-receptor-4-knockdown-attenuates-brain-damage-and-neuroinflammation-after-traumatic-brain-injury-via-inhibiting-neuronal-autophagy-and-astrocyte-activation
#14
Hongsheng Jiang, Yanzhou Wang, Xin Liang, Xiaofeng Xing, Xiuzhen Xu, Caifeng Zhou
Toll-like receptor 4 (TLR4) has been linked to various pathophysiological conditions, such as traumatic brain injury (TBI). It is reported that posttraumatic neuroinflammation is an essential event in the progression of brain injury after TBI. Recent evidences indicate that TLR4 mediates glial phagocytic activity and inflammatory cytokines production. Thus, TLR4 may be an important therapeutic target for neuroinflammatory injury post-TBI. This study was designed to explore potential effects and underlying mechanisms of TLR4 in rats suffered from TBI...
December 8, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/29222162/dual-inhibition-of-pik3c3-and-fgfr-as-a-new-therapeutic-approach-to-treat-bladder-cancer
#15
Chun-Han Chen, C Changou, Tsung-Han Hsieh, Yu-Ching Lee, Cheng-Ying Chu, Kai-Cheng Hsu, Hao-Ching Wang, Yu-Chen Lin, Yan-Ni Lo, Yun-Ru Liu, Jing-Ping Liou, Yun Yen
PURPOSE: MPT0L145 has been developed as a FGFR inhibitor exhibiting significant anti-bladder cancer activity in vitro and in vivo via promoting autophagy-dependent cell death. Here, we aim to elucidate the underlying mechanisms. EXPERIMENTAL DESIGN: Autophagy flux, morphology and intracellular organelles were evaluated by western blotting, transmission electron microscope and fluorescence microscope. Molecular docking, surface plasmon resonance assay were performed to identify drug-protein interaction...
December 8, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29221169/targeting-pp2a-activates-ampk-signaling-to-inhibit-colorectal-cancer-cells
#16
Cuiping Dai, Xuning Zhang, Da Xie, Peipei Tang, Chunmei Li, Yi Zuo, Baofei Jiang, Caiping Xue
LB-100 is a novel PP2A inhibitor. Its activity in human colorectal cancer (CRC) cells was tested. The in vitro studies demonstrated that LB-100 inhibited survival and proliferation of both established CRC cells (HCT-116 and HT-29 lines) and primary human colon cancer cells. Further, LB-100 activated apoptosis and induced G1-S cell cycle arrest in CRC cells. LB-100 inhibited PP2A activity and activated AMPK signaling in CRC cells. AMPKα1 dominant negative mutation, shRNA-mediated knockdown or complete knockout (by CRISPR/Cas9 method) largely attenuated LB-100-induced AMPK activation and HCT-116 cytotoxicity...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29221164/inhibition-of-x-linked-inhibitor-of-apoptosis-protein-suppresses-tumorigenesis-and-enhances-chemosensitivity-in-anaplastic-thyroid-carcinoma
#17
Yao Liu, Bing Zhang, Tiefeng Shi, Huadong Qin
Anaplastic thyroid carcinoma (ATC) is one of the most lethal carcinoma with a poor prognosis; however, molecular mechanisms underlying the aggressiveness of ATC remain unclear. Our goal was to examine the expression of X-linked inhibitor of apoptosis protein (XIAP) in ATC, as well as its role in ATC tumorigenesis. This is a retrospective study of ATC patients from the Second Affiliated Hospital of Harbin Medical University during June 2003 to October 2013. The expression of XIAP in tumor specimens of ATC patients was examined by immunohistochemical staining...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29221121/tropomyosin-isoform-tpm2-1-regulates-collective-and-amoeboid-cell-migration-and-cell-aggregation-in-breast-epithelial-cells
#18
HyeRim Shin, Dayoung Kim, David M Helfman
Metastasis dissemination is the result of various processes including cell migration and cell aggregation. These processes involve alterations in the expression and organization of cytoskeletal and adhesion proteins in tumor cells. Alterations in actin filaments and their binding partners are known to be key players in metastasis. Downregulation of specific tropomyosin (Tpm) isoforms is a common characteristic of transformed cells. In this study, we examined the role of Tpm2.1 in non-transformed MCF10A breast epithelial cells in cell migration and cell aggregation, because this isoform is downregulated in primary and metastatic breast cancer as well as various breast cancer cell lines...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29220380/hexokinase-2-hk2-the-tumor-promoter-in-glioma-is-downregulated-by-mir-218-bmi1-pathway
#19
Hui Liu, Nan Liu, Yingduan Cheng, Weilin Jin, Pengxing Zhang, Xin Wang, Hongwei Yang, Xiaoshan Xu, Zhen Wang, Yanyang Tu
In cancer, glycolysis driving enzymes and their regulating microRNAs are one of the key focus of oncology research lately. The glycolytic enzyme hexokinase 2 (HK2) is crucial for the Warburg effect in human glioma, the most common malignant brain tumor. In the present study, we studied the tumorigenic role of HK2 in glioma, and clarified the mechanism of miR-218 induced HK2 regulation in glioma development. The HK2 expression in patient derived glioma and non neoplastic brain tissue was quantified. The HK2 silenced U87 and U251 cell lines were assessed for their proliferation, migration and invasive potential in vitro, while the tumor forming potential of U87 cells was evaluated in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/29219174/igfbp3-deposited-in-the-human-umbilical-cord-mesenchymal-stem-cell-secreted-extracellular-matrix-promotes-bone-formation
#20
Moyuan Deng, Keyu Luo, Tianyong Hou, Fei Luo, Zhao Xie, Zehua Zhang, Aijun Yang, Bo Yu, Shaoxuan Yi, Tan Jiulin, Shiwu Dong, Jianzhong Xu
The extracellular matrix (ECM) contains rich biological cues for cell recruitment, proliferation and even differentiation. The osteoinductive potential of scaffolds could be enhanced through human bone marrow mesenchymal stem cell (hBMSC) directly depositing extracellular matrix (ECM) on surface of scaffolds. However, the role and mechanism of human umbilical cord MSC-secreted ECM in bone formation remain unknown. We tested the osteoinductive properties of a human umbilical cord MSC-secreted ECM construct (hUCMSC-ECM) in a large femur defect of a severe combined immunodeficiency mouse model...
December 8, 2017: Journal of Cellular Physiology
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