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Cell Death & Disease

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https://www.readbyqxmd.com/read/28817120/the-erythropoietin-derived-peptide-mk-x-and-erythropoietin-have-neuroprotective-effects-against-ischemic-brain-damage
#1
Seung-Jun Yoo, Bongki Cho, Deokho Lee, Gowoon Son, Yeong-Bae Lee, Hyung Soo Han, Eunjoo Kim, Chanil Moon, Cheil Moon
Erythropoietin (EPO) has been well known as a hematopoietic cytokine over the past decades. However, recent reports have demonstrated that EPO plays a neuroprotective role in the central nervous system, and EPO has been considered as a therapeutic target in neurodegenerative diseases such as ischemic stroke. Despite the neuroprotective effect of EPO, clinical trials have shown its unexpected side effects, including undesirable proliferative effects such as erythropoiesis and tumor growth. Therefore, the development of EPO analogs that would confer neuroprotection without adverse effects has been attempted...
August 17, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28817119/mir-1301-inhibits-hepatocellular-carcinoma-cell-migration-invasion-and-angiogenesis-by-decreasing-wnt-%C3%AE-catenin-signaling-through-targeting-bcl9
#2
Chao Yang, Yonghua Xu, Feng Cheng, Yuanchang Hu, Shikun Yang, Jianhua Rao, Xuehao Wang
Metastasis is the major cause of the poor prognosis of hepatocellular carcinoma (HCC), and increasing evidence supports the contribution of miRNAs to cancer progression. However, the exact relationship between the level of miR-1301 expression and HCC cell migration, invasion, and angiogenesis remains largely unknown. Quantitative PCR was used to evaluate the level of miR-1301 expression in HCC tissues and cell lines. Transwell and tube-formation assays were used to measure the effects of miR-1301 on HCC cell migration and invasion, and angiogenesis, respectively...
August 17, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28817118/altered-marginal-zone-and-innate-like-b-cells-in-aged-senescence-accelerated-samp8-mice-with-defective-igg1-responses
#3
Isabel Cortegano, Mercedes Rodríguez, Isabel Martín, Maria Carmen Prado, Carolina Ruíz, Rafael Hortigüela, Mario Alía, Marçal Vilar, Helena Mira, Eva Cano, Mercedes Domínguez, Belén de Andrés, María Luisa Gaspar
Aging has a strong impact on the activity of the immune system, enhancing susceptibility to pathogens and provoking a predominant pre-inflammatory status, whereas dampening responses to vaccines in humans and mice. Here, we demonstrate a loss of marginal zone B lymphocytes (MZ, CD19(+)CD45R(+)CD21(++)CD23(lo)) and a decrease of naive B cells (CD19(+)IgD(+)), whereas there is an enhancement of a CD19(+)CD45R(lo) innate-like B cell population (B1REL) and the so-called aged B cell compartment (ABC, CD45R(+)CD21(lo)CD23(lo)CD5(-)CD11b(-)) in aged senescence-accelerated (SAMP8) mice but not in aged senescence-resistant (SAMR1) mice...
August 17, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28817117/increased-tumor-infiltrating-cd45ra-ccr7-regulatory-t-cell-subset-with-immunosuppressive-properties-foster-gastric-cancer-progress
#4
Fang-Yuan Mao, Hui Kong, Yong-Liang Zhao, Liu-Sheng Peng, Weisan Chen, Jin-Yu Zhang, Ping Cheng, Ting-Ting Wang, Yi-Pin Lv, Yong-Sheng Teng, Xiao-Long Fu, Yu-Gang Liu, Xiao-Long Wu, Chuan-Jie Hao, Nan You, Ping Luo, Pei-Wu Yu, Quan-Ming Zou, Gang Guo, Yuan Zhuang
Regulatory T cells (Tregs) are major components of tumor-infiltrating immune cells with potent immunosuppressive properties in gastric cancer (GC) microenvironment. However, different subsets of the Tregs and their relevance to GC are unknown. Here, we found that patients with GC showed a significantly higher Tregs infiltration in tumors, and CD45RA(-)CCR7(-) Treg subset constituted most tumor-infiltrating Tregs. Tumor-infiltrating CD45RA(-)CCR7(-) Treg subset with an effector/memory phenotype accumulated in tumors and expressed low level of HLA-DR...
August 17, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28817116/total-tanshinones-exhibits-anti-inflammatory-effects-through-blocking-tlr4-dimerization-via-the-myd88-pathway
#5
Hongwei Gao, Xin Liu, Wen Sun, Naixin Kang, Yanli Liu, Shilin Yang, Qiong-Ming Xu, Chunming Wang, Xiuping Chen
Tanshinones belong to a group of lipophilic constituents of Salvia miltiorrhiza Bunge (Danshen), which is widely used in traditional Chinese medicine. A deluge of studies demonstrated that tanshinones exert anti-inflammatory effects, but the underlying mechanisms remain unclear to date. This study investigated the anti-inflammatory effects and mechanisms of total tanshinones (TTN). TTN suppressed the expression of cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS) and the secretion of TNF-α, IL-6, and IL-1β in RAW264...
August 17, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28817115/administration-of-follicle-stimulating-hormone-induces-autophagy-via-upregulation-of-hif-1%C3%AE-in-mouse-granulosa-cells
#6
Jilong Zhou, Wang Yao, Chengyu Li, Wangjun Wu, Qifa Li, Honglin Liu
Recent studies reported the important role of autophagy in follicular development. However, the underlying molecular mechanisms remain elusive. In this study, we investigated the effect of follicle-stimulating hormone (FSH) on mouse granulosa cells (MGCs). Results indicated that autophagy was induced by FSH, which is known to be the dominant hormone regulating follicular development and granulosa cell (GC) proliferation. The activation of mammalian target of rapamycin (mTOR), a master regulator of autophagy, was inhibited during the process of MGC autophagy...
August 17, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28796265/rnf183-promotes-proliferation-and-metastasis-of-colorectal-cancer-cells-via-activation-of-nf-%C3%AE%C2%BAb-il-8-axis
#7
Rong Geng, Xin Tan, Jiangxue Wu, Zhizhong Pan, Min Yi, Wei Shi, Ranyi Liu, Chen Yao, Gaoyuan Wang, Jiaxin Lin, Lin Qiu, Wenlin Huang, Shuai Chen
Colorectal cancer (CRC) is one of the most common malignant tumors worldwide, which is a heterogeneous disease and main risk factors are associated with inflammation, family history, genetic mutations, epigenetics, and so on. Ring finger domain proteins have been reported involved in carcinogenesis, whereas their roles in CRC are rarely studied. Here, we reanalyzed the expression of 202 RNF family members in CRC using published microarray data from GEO database and found that RNF183 is markedly upregulated in tumor tissues...
August 10, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28796264/lytic-cell-death-induced-by-melittin-bypasses-pyroptosis-but-induces-nlrp3-inflammasome-activation-and-il-1%C3%AE-release
#8
Fátima Martín-Sánchez, Juan José Martínez-García, María Muñoz-García, Miriam Martínez-Villanueva, José A Noguera-Velasco, David Andreu, Luís Rivas, Pablo Pelegrín
The nucleotide-binding domain and leucine-rich repeat-containing receptor with a pyrin domain 3 (NLRP3) inflammasome is a sensor for different types of infections and alterations of homeostatic parameters, including abnormally high levels of the extracellular nucleotide ATP or crystallization of different metabolites. All NLRP3 activators trigger a similar intracellular pathway, where a decrease in intracellular K(+) concentration and permeabilization of plasma membrane are key steps. Cationic amphipathic antimicrobial peptides and peptide toxins permeabilize the plasma membrane...
August 10, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28796263/mir-30c-regulates-cisplatin-induced-apoptosis-of-renal-tubular-epithelial-cells-by-targeting-bnip3l-and-hspa5
#9
Bin Du, Xiao-Meng Dai, Shuang Li, Guo-Long Qi, Guang-Xu Cao, Ying Zhong, Pei-di Yin, Xue-Song Yang
As a common anticancer drug, cisplatin has been widely used for treating tumors in the clinic. However, its side effects, especially its nephrotoxicity, noticeably restrict the application of cisplatin. Therefore, it is imperative to investigate the mechanism of renal injury and explore the corresponding remedies. In this study, we showed the phenotypes of the renal tubules and epithelial cell death as well as elevated cleaved-caspase3- and TUNEL-positive cells in rats intraperitoneally injected with cisplatin...
August 10, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28796262/long-noncoding-rna-crnde-promotes-colorectal-cancer-cell-proliferation-via-epigenetically-silencing-dusp5-cdkn1a-expression
#10
Jie Ding, Juan Li, HaiYan Wang, Yun Tian, Min Xie, XueZhi He, Hao Ji, Zhonghua Ma, Bingqing Hui, Keming Wang, Guozhong Ji
Evidence indicates that long non-coding RNAs (lncRNAs) play a critical role in the regulation of tumor cellular processes, such as proliferation, apoptosis, and metastasis. LncRNA CRNDE (Colorectal Neoplasia Differentially Expressed) is located at human chromosome 16 and has been found overexpressed in a variety of cancers including colorectal cancer (CRC). In this paper, we report that lncRNA CRNDE expression was remarkably upregulated in CRC tissues and that lncRNA CRNDE overexpression was positively correlated with advanced pathological stages and larger tumor sizes...
August 10, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28796261/p53-r273h-upregulates-neuropilin-2-to-promote-cell-mobility-and-tumor-metastasis
#11
Tao Lv, Xianqiang Wu, Lijuan Sun, Qingyong Hu, Yang Wan, Liang Wang, Zhiqiang Zhao, Xiao Tu, Zhi-Xiong Jim Xiao
Mounting evidence indicates that hotspot p53 mutant proteins often possess gain-of-function property in promoting cell mobility and tumor metastasis. However, the molecular mechanisms are not totally understood. In this study, we demonstrate that the hotspot mutation, p53-R273H, promotes cell migration, invasion in vitro and tumor metastasis in vivo. p53-R273H significantly represses expression of DLX2, a homeobox protein involved in cell proliferation and pattern formation. We show that p53-R273H-mediated DLX2 repression leads to upregulation of Neuropilin-2 (NRP2), a multifunctional co-receptor involved in tumor initiation, growth, survival and metastasis...
August 10, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28796260/clinical-grade-human-umbilical-cord-derived-mesenchymal-stem-cells-reverse-cognitive-aging-via-improving-synaptic-plasticity-and-endogenous-neurogenesis
#12
Ning Cao, Tuling Liao, Jiajing Liu, Zeng Fan, Quan Zeng, Junnian Zhou, Haiyun Pei, Jiafei Xi, Lijuan He, Lin Chen, Xue Nan, Yali Jia, Wen Yue, Xuetao Pei
Cognitive aging is a leading public health concern with the increasing aging population, but there is still lack of specific interventions directed against it. Recent studies have shown that cognitive function is intimately affected by systemic milieu in aging brain, and improvement of systemic environment in aging brain may be a promising approach for rejuvenating cognitive aging. Here, we sought to study the intervention effects of clinical-grade human umbilical cord-derived mesenchymal stem cells (hUC-MSCs) on cognitive aging in a murine model of aging...
August 10, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28796259/muc1-induces-acquired-chemoresistance-by-upregulating-abcb1-in-egfr-dependent-manner
#13
Wei Jin, Xiaodong Liao, Yaping Lv, Zhi Pang, Yuming Wang, Quanfu Li, Yahui Liao, Qing Ye, Guoqiang Chen, Kewen Zhao, Lei Huang
Chemoresistance contributes to cancer relapse and increased mortality in a variety of cancer types, raising a pressing need to better understand the underlying mechanism. MUC1 is abnormally overexpressed in numerous carcinomas and associated with poor prognosis. However, the functional significance of MUC1 in chemoresistance has not been fully elucidated. Here, we showed that MUC1 expression was considerably induced in cells that had acquired chemoresistance at both transcriptional and post-translational levels...
August 10, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28796258/loss-of-phd3-in-myeloid-cells-dampens-the-inflammatory-response-and-fibrosis-after-hind-limb-ischemia
#14
Angelika Beneke, Annemarie Guentsch, Annette Hillemann, Anke Zieseniss, Lija Swain, Dörthe M Katschinski
Macrophages are essential for the inflammatory response after an ischemic insult and thereby influence tissue recovery. For the oxygen sensing prolyl-4-hydroxylase domain enzyme (PHD) 2 a clear impact on the macrophage-mediated arteriogenic response after hind-limb ischemia has been demonstrated previously, which involves fine tuning a M2-like macrophage population. To analyze the role of PHD3 in macrophages, we performed hind-limb ischemia (ligation and excision of the femoral artery) in myeloid-specific PHD3 knockout mice (PHD3(-/-)) and analyzed the inflammatory cell invasion, reperfusion recovery and fibrosis in the ischemic muscle post-surgery...
August 10, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28796257/lncrna-oip5-as1-loss-induced-microrna-410-accumulation-regulates-cell-proliferation-and-apoptosis-by-targeting-klf10-via-activating-pten-pi3k-akt-pathway-in-multiple-myeloma
#15
Nan Yang, Jinqiu Chen, Hui Zhang, Xiaman Wang, Huan Yao, Yue Peng, Wanggang Zhang
Numerous studies confirmed that aberrant miRNAs expression contributes to multiple myeloma (MM) development and progression. However, the roles of specific miRNAs in MM remain to be investigated. In present study, we demonstrated that miR-410 expression was increased in MM newly diagnosed and relapsed tissues and cell lines. Clinical analysis revealed that miR-410 was positively correlated with advanced ISS stage. Moreover, high miR-410 expression in MM patients showed an obvious shorter overall survival and progression-free survival...
August 10, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28796256/tnf%C3%AE-deficiency-results-in-increased-il-1%C3%AE-in-an-early-onset-of-spontaneous-murine-colitis
#16
S De Santis, D Kunde, V Galleggiante, M Liso, L Scandiffio, G Serino, A Pinto, P Campiglia, R Sorrentino, E Cavalcanti, A Santino, M L Caruso, R Eri, M Chieppa
Inflammatory bowel disease (Crohn's disease (CD) and ulcerative colitis (UC)) is a multifactorial disease resulting from immune dysregulation in the gut. The underlying colitis is characterized by high levels of inflammatory cytokines, including TNFα. Biological intervention for IBD patients using anti-TNFα antibodies is often an effective therapeutic solution. However, TNFα neutralization fails to induce remission in a subgroup of IBD patients, primarily in UC patients. There is a dearth of suitable animal models representing TNFα non-responders...
August 10, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28796255/pdi-is-an-essential-redox-sensitive-activator-of-perk-during-the-unfolded-protein-response-upr
#17
Philip Kranz, Fabian Neumann, Alexandra Wolf, Fabian Classen, Mosche Pompsch, Tobias Ocklenburg, Jennifer Baumann, Kirsten Janke, Melanie Baumann, Kirsten Goepelt, Helena Riffkin, Eric Metzen, Ulf Brockmeier
Endoplasmic reticulum (ER) stress leads to activation of the unfolded protein response (UPR) that results in transient suppression of protein translation to allow recovery but leads to cell death when stress cannot be resolved. Central to initiation of the UPR is the activation of the ER transmembrane kinase protein kinase R (PKR)-like endoplasmic reticulum kinase (PERK). Here we report that the thiol oxidoreductase ERp57 and protein disulfide isomerase-A1 (PDI), which belong to the same family of luminal ER oxidoreductases, have strikingly opposing roles in the regulation of PERK function...
August 10, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28796254/sunitinib-induces-genomic-instability-of-renal-carcinoma-cells-through-affecting-the-interaction-of-lc3-ii-and-parp-1
#18
Siyuan Yan, Ling Liu, Fengxia Ren, Quan Gao, Shanshan Xu, Bolin Hou, Yange Wang, Xuejun Jiang, Yongsheng Che
Deficiency of autophagy has been linked to increase in nuclear instability, but the role of autophagy in regulating the formation and elimination of micronuclei, a diagnostic marker for genomic instability, is limited in mammalian cells. Utilizing immunostaining and subcellular fractionation, we found that either LC3-II or the phosphorylated Ulk1 localized in nuclei, and immunoprecipitation results showed that both LC3 and Unc-51-like kinase 1 (Ulk1) interacted with γ-H2AX, a marker for the DNA double-strand breaks (DSB)...
August 10, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28796253/tnf-signaling-and-macrophages-govern-fin-regeneration-in-zebrafish-larvae
#19
Mai Nguyen-Chi, Béryl Laplace-Builhé, Jana Travnickova, Patricia Luz-Crawford, Gautier Tejedor, Georges Lutfalla, Karima Kissa, Christian Jorgensen, Farida Djouad
Macrophages are essential for appendage regeneration after amputation in regenerative species. The molecular mechanisms through which macrophages orchestrate blastema formation and regeneration are still unclear. Here, we use the genetically tractable and transparent zebrafish larvae to study the functions of polarized macrophage subsets during caudal fin regeneration. After caudal fin amputation, we show an early and transient accumulation of pro-inflammatory macrophages concomitant with the accumulation of non-inflammatory macrophages which, in contrast to pro-inflammatory macrophages, remain associated to the fin until the end of the regeneration...
August 10, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28796252/microrna-34-449-targets-igfbp-3-and-attenuates-airway-remodeling-by-suppressing-nur77-mediated-autophagy
#20
Huiming Yin, Shu Zhang, Yahong Sun, Sha Li, Yunye Ning, Yuchao Dong, Yan Shang, Chong Bai
Autophagy plays critical roles in airway inflammation and fibrosis-mediated airway remodeling and many factors including proinflammatory cytokines and inflammation related pathways are involved in the process. The aim of the present study was to examine the role of epithelial microRNAs (miRNAs) in autophagy-mediated airway remodeling and to identify the factors involved and the underlying mechanisms. Serum miR-34/449, inflammatory factors, and autophagy and fibrosis-related proteins were determined by real-time PCR, enzyme-linked immunosorbent assay and western blotting in 46 subjects with asthma and 10 controls and in the lung epithelial cell line BEAS-2B induced with IL-13 and treated with miRNA mimics...
August 10, 2017: Cell Death & Disease
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