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Cell Death & Disease

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https://www.readbyqxmd.com/read/28333152/radiation-inducible-mir-770-5p-sensitizes-tumors-to-radiation-through-direct-targeting-of-pdz-binding-kinase
#1
Hyung Chul Lee, Nam-Gu Her, Donghee Kang, Seung Hee Jung, Jinwook Shin, Minyoung Lee, In Hwa Bae, Young-Nyun Kim, Heon Joo Park, Young-Gyu Ko, Jae-Seon Lee
Radiotherapy represents the most effective non-surgical modality in cancer treatment. MicroRNAs (miRNAs) are small non-coding RNAs that regulate gene expression, and are involved in many biological processes and diseases. To identify miRNAs that influence the radiation response, we performed miRNA array analysis using MCF7 cells at 2, 8, and 24 h post irradiation. We demonstrated that miR-770-5p is a novel radiation-inducible miRNA. When miR-770-5p was overexpressed, relative cell number was reduced due to increased apoptosis in MCF7 and A549 cells...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28333151/fto-is-required-for-myogenesis-by-positively-regulating-mtor-pgc-1%C3%AE-pathway-mediated-mitochondria-biogenesis
#2
Xiaobo Wang, Ning Huang, Min Yang, Dandan Wei, Haoran Tai, Xiaojuan Han, Hui Gong, Jiao Zhou, Jianqiong Qin, Xiawei Wei, Honghan Chen, Tingting Fang, Hengyi Xiao
Global germ line loss of fat mass- and obesity-associated (FTO) gene results in both the reduction of fat mass and lean mass in mice. The role of FTO in adipogenesis has been proposed, however, that in myogenesis has not. Skeletal muscle is the main component of body lean mass, so its connection with FTO physiologic significance need to be clarified. Here, we assessed the impact of FTO on murine skeletal muscle differentiation by in vitro and in vivo experiments. We found that FTO expression increased during myoblasts differentiation, while the silence of FTO inhibited the differentiation; in addition, skeletal muscle development was impaired in skeletal muscle FTO-deficient mice...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28333150/kaiso-depletion-attenuates-the-growth-and-survival-of-triple-negative-breast-cancer-cells
#3
Blessing I Bassey-Archibong, Lyndsay G A Rayner, Shawn M Hercules, Craig W Aarts, Anna Dvorkin-Gheva, Jonathan L Bramson, John A Hassell, Juliet M Daniel
Triple negative breast cancers (TNBC) are highly aggressive and lack specific targeted therapies. Recent studies have reported high expression of the transcription factor Kaiso in triple negative tumors, and this correlates with their increased aggressiveness. However, little is known about the clinical relevance of Kaiso in the growth and survival of TNBCs. Herein, we report that Kaiso depletion attenuates TNBC cell proliferation, and delays tumor onset in mice xenografted with the aggressive MDA-231 breast tumor cells...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28333149/upregulation-of-mir-665-promotes-apoptosis-and-colitis-in-inflammatory-bowel-disease-by-repressing-the-endoplasmic-reticulum-stress-components-xbp1-and-ormdl3
#4
Manying Li, Shenghong Zhang, Yun Qiu, Yao He, Baili Chen, Ren Mao, Yi Cui, Zhirong Zeng, Minhu Chen
MicroRNAs are critical post-transcriptional regulators of gene expression and key mediators of pathophysiology of inflammatory bowel disease (IBD). This study is aimed to study the role of miR-665 in the progression of IBD. Real-time PCR analysis was used to determine miR-665 expression in 89 freshly isolated IBD samples and dextran sulfate sodium (DSS)-induced colonic mucosal tissues. The role of miR-665 in inducing apoptosis and colitis were examined by Annexin V, TUNEL (terminal deoxynucleotidyl transferase dUTP nick-end labeling) staining, colony formation in vitro and DSS-induced colitis mice model in vivo...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28333148/salusin-%C3%AE-contributes-to-oxidative-stress-and-inflammation-in-diabetic-cardiomyopathy
#5
Ming-Xia Zhao, Bing Zhou, Li Ling, Xiao-Qing Xiong, Feng Zhang, Qi Chen, Yue-Hua Li, Yu-Ming Kang, Guo-Qing Zhu
Salusin-β accelerates inflammatory responses in vascular endothelial cells, and increases oxidative stress in vascular smooth muscle cells. Plasma salusin-β levels were increased in diabetic patients. This study was designed to determine whether salusin-β is involved in the pathogenesis of diabetic cardiomyopathy (DCM), and whether knockdown of salusin-β attenuates cardiac inflammation and oxidative stress in rats with DCM. H9c2 or neonatal rat cardiomyocytes were incubated with 33.3 mM of glucose to mimic the high glucose (HG) in diabetes...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28333147/solute-carrier-family-12-member-5-promotes-tumor-invasion-metastasis-of-bladder-urothelial-carcinoma-by-enhancing-nf-%C3%AE%C2%BAb-mmp-7-signaling-pathway
#6
J Y Liu, Y B Dai, X Li, K Cao, D Xie, Z T Tong, Z Long, H Xiao, M K Chen, Y L Ye, B Liu, J Tan, J Tang, Z Z Xu, Y Gan, Y H Zhou, F Deng, L Y He
Solute carrier family 12 member 5 (SLC12A5), an integral membrane KCl cotransporter, which maintains chloride homeostasis in neurons, is aberrantly expressed and involved in the tumorigenesis of certain cancers. However, the clinical significance and biological role of SLC12A5 in human bladder urothelial carcinoma (BUC) remains unclear. In this study, the expression of SLC12A5 was examined in clinical specimens of primary BUC and in BUC cell lines using quantitative real-time reverse transcription polymerase chain reaction (qRT-PCR), western blot and immunohistochemistry (IHC)...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28333146/cdc25a-phosphatase-a-key-cell-cycle-protein-that-regulates-neuron-death-in-disease-and-development
#7
Subhas Chandra Biswas, Priyankar Sanphui, Nandini Chatterjee, Stav Kemeny, Lloyd A Greene
No abstract text is available yet for this article.
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28333145/the-cryo-thermal-therapy-eradicated-melanoma-in-mice-by-eliciting-cd4-t-cell-mediated-antitumor-memory-immune-response
#8
Kun He, Ping Liu, Lisa X Xu
Tumor metastasis is a major concern in tumor therapy. In our previous studies, a novel tumor therapeutic modality of the cryo-thermal therapy has been presented, highlighting its effect on the suppression of distal metastasis and leading to long-term survival in 4T1 murine mammary carcinoma model. To demonstrate the therapeutic efficacy in other aggressive tumor models and further investigate the mechanism of long-term survival induced, in this study, spontaneous metastatic murine B16F10 melanoma model was used...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28333144/aberrant-ipsc-derived-human-astrocytes-in-alzheimer-s-disease
#9
V C Jones, R Atkinson-Dell, A Verkhratsky, L Mohamet
The pathological potential of human astroglia in Alzheimer's disease (AD) was analysed in vitro using induced pluripotent stem cell (iPSC) technology. Here, we report development of a human iPSC-derived astrocyte model created from healthy individuals and patients with either early-onset familial AD (FAD) or the late-onset sporadic form of AD (SAD). Our chemically defined and highly efficient model provides >95% homogeneous populations of human astrocytes within 30 days of differentiation from cortical neural progenitor cells (NPCs)...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28333143/molecular-insights-of-gas6-tam-in-cancer-development-and-therapy
#10
REVIEW
Guiling Wu, Zhiqiang Ma, Wei Hu, Dongjin Wang, Bing Gong, Chongxi Fan, Shuai Jiang, Tian Li, Jianyuan Gao, Yang Yang
Since growth arrest-specific gene 6 (Gas6) was discovered in 1988, numerous studies have highlighted the role of the Gas6 protein and its receptors Tyro3, Axl and Mer (collectively referred to as TAM), in proliferation, apoptosis, efferocytosis, leukocyte migration, sequestration and platelet aggregation. Gas6 has a critical role in the development of multiple types of cancers, including pancreatic, prostate, oral, ovarian and renal cancers. Acute myelocytic leukaemia (AML) is a Gas6-dependent cancer, and Gas6 expression predicts poor prognosis in AML...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28333142/hydrogen-sulfide-promotes-autophagy-of-hepatocellular-carcinoma-cells-through-the-pi3k-akt-mtor-signaling-pathway
#11
Shanshan S Wang, Yuhan H Chen, Ning Chen, Lijun J Wang, Dexi X Chen, Honglei L Weng, Steven Dooley, Huiguo G Ding
Hydrogen sulfide (H2S), in its gaseous form, plays an important role in tumor carcinogenesis. This study investigated the effects of H2S on the cell biological functions of hepatocellular carcinoma (HCC). HCC cell lines, HepG2 and HLE, were treated with NaHS, a donor of H2S, and rapamycin, a classic autophagy inducer, for different lengths of time. Western blotting, immunofluorescence, transmission electron microscopy (TEM), scratch assay, CCK-8 and flow cytometric analysis were carried out to examine the effects of H2S on HCC autophagy, cell behavior and PI3K/Akt/mTOR signaling...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28333141/npas2-promotes-cell-survival-of-hepatocellular-carcinoma-by-transactivating-cdc25a
#12
Peng Yuan, Jibin Li, Feng Zhou, Qichao Huang, Jiansheng Zhang, Xu Guo, Zhuomin Lyu, Hongxin Zhang, Jinliang Xing
Emerging evidences show that disruption of the circadian rhythm is associated with tumor initiation and progression. Neuronal PAS domain protein 2 (NPAS2), one of the core circadian molecules, has been proved to be a potential prognostic biomarker in colorectal and breast cancers. However, to date, the potential functional roles and molecular mechanisms by which NPAS2 affects cancer cell survival are greatly unclear, especially in hepatocellular carcinoma (HCC). We first investigated the expression of NPAS2 and its clinical significance in HCC...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28333140/metabolic-and-molecular-insights-into-an-essential-role-of-nicotinamide-phosphoribosyltransferase
#13
Li Q Zhang, Leon Van Haandel, Min Xiong, Peixin Huang, Daniel P Heruth, Charlie Bi, Roger Gaedigk, Xun Jiang, Ding-You Li, Gerald Wyckoff, Dmitry N Grigoryev, Li Gao, Linheng Li, Min Wu, J Steven Leeder, Shui Qing Ye
Nicotinamide phosphoribosyltransferase (NAMPT) is a pleiotropic protein implicated in the pathogenesis of acute respiratory distress syndrome, aging, cancer, coronary heart diseases, diabetes, nonalcoholic fatty liver disease, obesity, rheumatoid arthritis, and sepsis. However, the underlying molecular mechanisms of NAMPT in these physiological and pathological processes are not fully understood. Here, we provide experimental evidence that a Nampt gene homozygous knockout (Nampt(-/-)) resulted in lethality at an early stage of mouse embryonic development and death within 5-10 days in adult mice accompanied by a 25...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28333139/inhibition-of-autophagy-prevents-irradiation-induced-neural-stem-and-progenitor-cell-death-in-the-juvenile-mouse-brain
#14
Yafeng Wang, Kai Zhou, Tao Li, Yiran Xu, Cuicui Xie, Yanyan Sun, Yaodong Zhang, Juan Rodriguez, Klas Blomgren, Changlian Zhu
Radiotherapy is an effective tool in the treatment of malignant brain tumors. However, damage to brain stem and progenitor cells constitutes a major problem and is associated with long-term side effects. Autophagy has been shown to be involved in cell death, and the purpose of this study was to evaluate the effect of autophagy inhibition on neural stem and progenitor cell death in the juvenile brain. Ten-day-old selective Atg7 knockout (KO) mice and wild-type (WT) littermates were subjected to a single 6Gy dose of whole-brain irradiation...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28333138/other-bricks-for-the-correct-construction-of-the-mitochondrial-permeability-transition-pore-complex
#15
Giampaolo Morciano, Massimo Bonora, Carlotta Giorgi, Paolo Pinton
No abstract text is available yet for this article.
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28333137/the-mtor-signal-regulates-myeloid-derived-suppressor-cells-differentiation-and-immunosuppressive-function-in-acute-kidney-injury
#16
Chao Zhang, Shuo Wang, Jiawei Li, Weitao Zhang, Long Zheng, Cheng Yang, Tongyu Zhu, Ruiming Rong
The mammalian target of rapamycin (mTOR) signal controls innate and adaptive immune response in multiple immunoregulatory contexts. Myeloid-derived suppressor cells (MDSCs) are a heterogeneous population of myeloid cells of potent immunosuppressive capacity. In this study, we aimed to investigate the role of MDSCs in the protection of acute kidney injury (AKI) and the regulation of mTOR signal on MDSC's protective role in this context. In mice AKI model, rapamycin administration was associated with improved renal function, restored histological damage and decreased CD4(+) and CD8(+) T-cell infiltration in kidney tissue...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28333136/targeting-3-phosphoinositide-dependent-protein-kinase-1-associated-with-drug-resistant-renal-cell-carcinoma-using-new-oridonin-analogs
#17
Jiancheng Zhou, Eun-Jin Yun, Wei Chen, Ye Ding, Kaijie Wu, Bin Wang, Chunyong Ding, Elizabeth Hernandez, John Santoyo, Rey-Chen Pong, Haiying Chen, Dalin He, Jia Zhou, Jer-Tsong Hsieh
The current agents used for renal cell carcinoma (RCC) only exhibit the moderate response rate among patients. Development of drug resistance eventually fuels the need of either more potent drugs or new drugs to target the resistant pathways. Oridonin is a diterpenoid isolated from the Chinese medicinal herb Rabdosia rubescens and has been shown to have antitumor activities in many cancers. We previously developed new synthetic methodologies to modify structurally diversified diterpenoids and designed a series of nitrogen-enriched oridonin analogs...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28333135/bre-modulates-granulosa-cell-death-to-affect-ovarian-follicle-development-and-atresia-in-the-mouse
#18
Cheung Kwan Yeung, Guang Wang, Yao Yao, Jianxin Liang, Cheuk Yiu Tenny Chung, Manli Chuai, Kenneth Ka Ho Lee, Xuesong Yang
The BRE (brain and reproductive expression) gene, highly expressed in nervous and reproductive system organs, plays an important role in modulating DNA damage repair under stress response and pathological conditions. Folliculogenesis, a process that ovarian follicle develops into maturation, is closely associated with the interaction between somatic granulosa cell and oocyte. However, the regulatory role of BRE in follicular development remains undetermined. In this context, we found that BRE is normally expressed in the oocytes and granulosa cells from the primordial follicle stage...
March 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28300846/regulation-of-rhoa-activity-by-the-cellular-prion-protein
#19
Hee-Jun Kim, Hong-Seok Choi, Jeong-Ho Park, Mo-Jong Kim, Hyoung-Gon Lee, Robert Bob Petersen, Yong-Sun Kim, Jae-Bong Park, Eun-Kyoung Choi
The cellular prion protein (PrP(C)) is a highly conserved glycosylphosphatidylinositol (GPI)-anchored membrane protein that is involved in the signal transduction during the initial phase of neurite outgrowth. The Ras homolog gene family member A (RhoA) is a small GTPase that is known to have an essential role in regulating the development, differentiation, survival, and death of neurons in the central nervous system. Although recent studies have shown the dysregulation of RhoA in a variety of neurodegenerative diseases, the role of RhoA in prion pathogenesis remains unclear...
March 16, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28300845/digoxin-induced-retinal-degeneration-depends-on-rhodopsin
#20
Britta Landfried, Marijana Samardzija, Maya Barben, Christian Schori, Katrin Klee, Federica Storti, Christian Grimm
Na,K-ATPases are energy consuming ion pumps that are required for maintaining ion homeostasis in most cells. In the retina, Na,K-ATPases are especially important to sustain the dark current in photoreceptor cells needed for rapid hyperpolarization of rods and cones in light. Cardiac glycosides like digoxin inhibit the activity of Na,K-ATPases by targeting their catalytic alpha subunits. This leads to a disturbed ion balance, which can affect cellular function and survival. Here we show that the treatment of wild-type mice with digoxin leads to severe retinal degeneration and loss of vision...
March 16, 2017: Cell Death & Disease
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