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https://www.readbyqxmd.com/read/27913023/in-stream-metabolism-and-atmospheric-carbon-sequestration-in-a-groundwater-fed-karst-stream
#1
Junbing Pu, Jianhong Li, Mitra B Khadka, Jonathan B Martin, Tao Zhang, Shi Yu, Daoxian Yuan
Atmospheric carbon sequestered in karst systems through dissolution of carbonate minerals is considered to have no net effect on long-term regional and global carbon budgets because precipitation of dissolved carbonate minerals emits CO2 back to the atmosphere. Even though recent studies have implied that rapid kinetics of carbonate dissolution coupled with the aquatic photosynthetic uptake of dissolve inorganic carbon (DIC) could facilitate a stable atmospheric C sink in karst rivers and streams, little is known about the magnitudes and long-term stability of this C sink...
November 29, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27890927/the-ap-1-transcription-factor-junb-is-essential-for-multiple-myeloma-cell-proliferation-and-drug-resistance-in-the-bone-marrow-microenvironment
#2
F Fan, M H Bashari, E Morelli, G Tonon, S Malvestiti, S Vallet, M Jarahian, A Seckinger, D Hose, L Bakiri, C Sun, Y Hu, C R Ball, H Glimm, M Sattler, H Goldschmidt, E F Wagner, P Tassone, D Jaeger, K Podar
Despite therapeutic advances, multiple myeloma (MM) remains an incurable disease, predominantly due to the development of drug resistance. The activator protein-1 (AP-1) transcription factor family has been implicated in a multitude of physiologic processes and tumorigenesis; however, its role in MM is largely unknown. Here we demonstrate specific and rapid induction of the AP-1 family member JunB in MM cells when co-cultured with bone marrow stromal cells. Supporting a functional key role of JunB in MM pathogenesis, knockdown of JUNB significantly inhibited in vitro MM cell proliferation and survival...
November 28, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27825096/phosphoinositide-3-kinase-akt-inhibits-mst1-mediated-pro-apoptotic-signaling-through-phosphorylation-of-threonine-120
#3
Zengqiang Yuan, Donghwa Kim, Shaokun Shu, Junbing Wu, Jianping Guo, Lei Xiao, Satoshi Kaneko, Domenico Coppola, Jin Q Cheng
No abstract text is available yet for this article.
October 21, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27805583/repetitive-transcranial-magnetic-stimulation-to-the-unilateral-hemisphere-of-rat-brain
#4
Jaewon Beom, Jung Chan Lee, Jin Chul Paeng, Tai Ryoon Han, Moon Suk Bang, Byung-Mo Oh
Previous rodent models of repetitive transcranial magnetic stimulation (rTMS) adopted whole-brain stimulation instead of unilateral hemispheric rTMS, which is unlike the protocols used for human subjects. We report a successful application of rTMS to the unilateral hemisphere of rat brain. The rTMS was delivered with a low-frequency (1 Hz), high-frequency (20 Hz), or sham stimulation protocol to one side of the brain by using a small 25-mm figure-8 coil. We placed the center of the coil 1 cm lateral to the vertex on the biauricular line and angulated the coil 45° to the ground to minimize a potential direct effect of rTMS on the contralateral cortex...
October 22, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27793034/therapeutic-efficacy-of-the-bromodomain-inhibitor-otx015-mk-8628-in-alk-positive-anaplastic-large-cell-lymphoma-an-alternative-modality-to-overcome-resistant-phenotypes
#5
Michela Boi, Maria Todaro, Valentina Vurchio, Shao Ning Yang, John Moon, Ivo Kwee, Andrea Rinaldi, Heng Pan, Ramona Crescenzo, Mangeng Cheng, Leandro Cerchietti, Olivier Elemento, Maria E Riveiro, Esteban Cvitkovic, Francesco Bertoni, Giorgio Inghirami
Anaplastic large cell lymphomas (ALCL) represent a peripheral T-cell lymphoma subgroup, stratified based on the presence or absence of anaplastic lymphoma kinase (ALK) chimeras. Although ALK-positive ALCLs have a more favorable outcome than ALK-negative ALCL, refractory and/or relapsed forms are common and novel treatments are needed. Here we investigated the therapeutic potential of a novel bromodomain inhibitor, OTX015/MK-8628 in ALK-positive ALCLs.The effects of OTX015 on a panel of ALK+ ALCL cell lines was evaluated in terms of proliferation, cell cycle and downstream signaling, including gene expression profiling analyses...
October 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27766226/nf-k%C3%AE-activation-in-u266-cells-on-mesenchymal-stem-cells
#6
Sara Zahedi, Karim Shamsasenjan, Aliakbar Movassaghpour, Parvin Akbarzadehlaleh
Purpose: Mesenchymal Stem Cells (MSCs) are one of the essential members of Bone Marrow (BM) microenvironment and the cells affect normal and malignant cells in BM milieu. One of the most important hematological malignancies is Multiple Myeloma (MM). Numerous studies reported various effects of MSCs on myeloma cells. MSCs initiate various signaling pathways in myeloma cells, particularly NF-kβ. NF-kβ signaling pathway plays pivotal role in the survival, proliferation and resistance of myeloma cells to the anticancer drugs, therefore this pathway can be said to be a vital target for cancer therapy...
September 2016: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27751807/transforming-growth-factor-%C3%AE-1-regulation-of-atf-3-c-jun-and-junb-proteins-for-activation-of-matrix-metalloproteinase-13-gene-in-human-breast-cancer-cells
#7
M Gokulnath, R Swetha, G Thejaswini, P Shilpa, N Selvamurugan
Transforming growth factor-beta1 (TGF-β1) plays a significant role in breast cancer mediated bone metastasis, and it stimulated expression of matrix metalloproteinase-13 (MMP-13; an invasive and metastasis gene) via activating transcription factor-3 (ATF-3) in human breast cancer cells (MDA-MB231). We further dissected the role of ATF-3 and its interacting proteins (activator protein-1; AP-1) for TGF-β1-stimulation of MMP-13 expression in these cells. Chromatin immunoprecipitation (ChIP) experiment identified the TGF-β1-stimulation of ATF-3 interaction at the AP-1 site of the MMP-13 promoter in a sustained and prolonged manner in MDA-MB231 cells...
October 15, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27725201/kind1-loss-sensitizes-keratinocytes-to-uv-induced-inflammatory-response-and-dna-damage
#8
Xiaoling Zhang, Suju Luo, Joseph Wu, Long Zhang, Wen-Hui Wang, Simone Degan, Detlev Erdmann, Russell Hall, Jennifer Y Zhang
Loss-of-function of KIND1, a cytoskeletal protein involved in β1-integrin function, causes Kindler Syndrome (KS), a genetic disease characterized by skin fragility, photosensitivity and increased risk of squamous cell carcinoma (SCC). Dysregulation of β1-integrin underlies KS skin fragility. However, the mechanisms underlying SCC susceptibility are unclear. Here, we demonstrate that gene silencing of KIND1 decreased keratinocyte proliferation and increased apoptosis in vitro and in skin grafts regenerated on mice, which was correlated with reduced cyclinB1...
October 7, 2016: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/27666332/ccl2-as-a-potential-therapeutic-target-for-clear-cell-renal-cell-carcinoma
#9
Ryuichiro Arakaki, Toshinari Yamasaki, Toru Kanno, Noboru Shibasaki, Hiromasa Sakamoto, Noriaki Utsunomiya, Takayuki Sumiyoshi, Shinsuke Shibuya, Tatsuaki Tsuruyama, Eijiro Nakamura, Osamu Ogawa, Tomomi Kamba
We previously reported that the pVHL-atypical PKC-JunB pathway contributed to promotion of cell invasiveness and angiogenesis in clear cell renal cell carcinoma (ccRCC), and we detected chemokine (C-C motif) ligand-2 (CCL2) as one of downstream effectors of JunB. CCL2 plays a critical role in tumorigenesis in other types of cancer, but its role in ccRCC remains unclear. In this study, we investigated the roles and therapeutic potential of CCL2 in ccRCC. Immunohistochemical analysis of CCL2 expression for ccRCC specimens showed that upregulation of CCL2 expression correlated with clinical stage, overall survival, and macrophage infiltration...
September 26, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27646682/cyprininae-phylogeny-revealed-independent-origins-of-the-tibetan-plateau-endemic-polyploid-cyprinids-and-their-diversifications-related-to-the-neogene-uplift-of-the-plateau
#10
Xuzhen Wang, Xiaoni Gan, Junbing Li, Yiyu Chen, Shunping He
Origin and diversification of the Tibetan polyploid cyprinids (schizothoracins) may help us to explore relationships between diversification of the cyprinids and the Tibetan Plateau uplift. Cyprininae phylogeny was analyzed using mitochondrial and nuclear DNA sequences to trace origins of polyploidy and diversifications of schizothoracins. Ancestral states reconstruction for ploidy levels indicated that the Cyprininae was diploid origin and the schizothoracin clades tetraploid origins. There were two diversification rate shifts along with diversification of the cyprinine fishes in response to the Tibetan uplift...
September 20, 2016: Science China. Life Sciences
https://www.readbyqxmd.com/read/27637333/identification-of-novel-nuclear-factor-of-activated-t-cell-nfat-associated-proteins-in-t-cells
#11
Christian H Gabriel, Fridolin Gross, Martin Karl, Heike Stephanowitz, Anna Floriane Hennig, Melanie Weber, Stefanie Gryzik, Ivo Bachmann, Katharina Hecklau, Jürgen Wienands, Johannes Schuchhardt, Hanspeter Herzel, Andreas Radbruch, Eberhard Krause, Ria Baumgrass
Transcription factors of the nuclear factor of activated T cell (NFAT) family are essential for antigen-specific T cell activation and differentiation. Their cooperative DNA binding with other transcription factors, such as AP1 proteins (FOS, JUN, and JUNB), FOXP3, IRFs, and EGR1, dictates the gene regulatory action of NFATs. To identify as yet unknown interaction partners of NFAT, we purified biotin-tagged NFATc1/αA, NFATc1/βC, and NFATc2/C protein complexes and analyzed their components by stable isotope labeling by amino acids in cell culture-based mass spectrometry...
November 11, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27627921/alpinia-officinarum-stimulates-osteoblast-mineralization-and-inhibits-osteoclast-differentiation
#12
Ki-Shuk Shim, Chung-Jo Lee, Nam-Hui Yim, Min Jung Gu, Jin Yeul Ma
Alpinia officinarum rhizome has been used as a traditional herbal remedy to treat inflammatory and internal diseases. Based on the previously observed inhibitory effect of A. officinarum rhizome in an arthritis model, we evaluated whether a water extract of A. officinarum rhizome (WEAO) would enhance in vitro osteoblast mineralization using calvarial osteoblast precursor cells or would inhibit in vitro osteoclast differentiation and bone resorption using bone marrow derived macrophages. In osteoblasts, WEAO enhanced the mRNA levels of transcription factor (runt-related transcription factor 2, smad1, smad5, and junB) and marker (bone morphogenetic protein-2, collagen type 1alpha1, and osteocalcin) genes related to osteoblast mineralization, consistent with increased alizarin red S staining intensity...
2016: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/27607600/association-study-between-promoter-polymorphisms-of-adam17-and-progression-of-sepsis
#13
Yiming Shao, Junbing He, Feng Chen, Yujie Cai, Jianghao Zhao, Yao Lin, Zihan Yin, Hua Tao, Xin Shao, Pengru Huang, Mingkang Yin, Wenying Zhang, Zhou Liu, Lili Cui
BACKGROUND: A disintegrin and metalloproteinase 17 (ADAM17) has been confirmed to play a significant role in the pathogenesis of sepsis. However, little is known about the clinical relevance of ADAM17 polymorphisms to sepsis onset and development. METHODS: This study analyzed the associations of five ADAM17 promoter polymorphisms (rs55790676, rs12692386, rs11684747, rs1524668 and rs11689958) with sepsis (370 sepsis cases and 400 controls). Genotyping was performed using pyrosequencing and polymerase chain reaction-length polymorphism method...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27604827/tgf-%C3%AE-effects-on-prostate-cancer-cell-migration-and-invasion-require-fosb
#14
Cachétne S X Barrett, Ana C Millena, Shafiq A Khan
BACKGROUND: Activator Protein-1 (AP-1) family (cJun, JunB, JunD, cFos, FosB, Fra1, and Fra2) plays a central role in the transcriptional regulation of many genes that are associated with cell proliferation, differentiation, migration, metastasis, and survival. Many oncogenic signaling pathways converge at the AP-1 transcription complex. Transforming growth factor beta (TGF-β) is a multifunctional regulatory cytokine that regulates many aspects of cellular function, including cellular proliferation, differentiation, migration, apoptosis, adhesion, angiogenesis, immune surveillance, and survival...
September 7, 2016: Prostate
https://www.readbyqxmd.com/read/27600282/expression-patterns-of-the-activator-protein-1-ap-1-family-members-in-lymphoid-neoplasms
#15
Alexandra Papoudou-Bai, Eleftheria Hatzimichael, Alexandra Barbouti, Panagiotis Kanavaros
The activator protein-1 (AP-1) is a dimeric transcription factor composed of proteins belonging to the Jun (c-Jun, JunB and JunD), Fos (c-Fos, FosB, Fra1 and Fra2) and activating transcription factor protein families. AP-1 is involved in various cellular events including differentiation, proliferation, survival and apoptosis. Deregulated expression of AP-1 transcription factors is implicated in the pathogenesis of various lymphomas such as classical Hodgkin lymphomas, anaplastic large cell lymphomas, diffuse large B cell lymphomas and adult T cell leukemia/lymphoma...
September 6, 2016: Clinical and Experimental Medicine
https://www.readbyqxmd.com/read/27593933/dlx1-acts-as-a-crucial-target-of-foxm1-to-promote-ovarian-cancer-aggressiveness-by-enhancing-tgf-%C3%AE-smad4-signaling
#16
D W Chan, W W Y Hui, J J Wang, M M H Yung, L M N Hui, Y Qin, R R Liang, T H Y Leung, D Xu, K K L Chan, K-M Yao, B K Tsang, H Y S Ngan
Recent evidence from a comprehensive genome analysis and functional studies have revealed that FOXM1 is a crucial metastatic regulator that drives cancer progression. However, the regulatory mechanism by which FOXM1 exerts its metastatic functions in cancer cells remains obscure. Here, we report that DLX1 acts as a FOXM1 downstream target, exerting pro-metastatic function in ovarian cancers. Both FOXM1 isoforms (FOXM1B or FOXM1C) could transcriptionally upregulate DLX1 through two conserved binding sites, located at +61 to +69bp downstream (TFBS1) and -675 to -667bp upstream (TFBS2) of the DLX1 promoter, respectively...
September 5, 2016: Oncogene
https://www.readbyqxmd.com/read/27591797/chromatin-remodeling-regulates-catalase-expression-during-cancer-cells-adaptation-to-chronic-oxidative-stress
#17
Christophe Glorieux, Juan Marcelo Sandoval, Antoine Fattaccioli, Nicolas Dejeans, James C Garbe, Marc Dieu, Julien Verrax, Patricia Renard, Peng Huang, Pedro Buc Calderon
Regulation of ROS metabolism plays a major role in cellular adaptation to oxidative stress in cancer cells, but the molecular mechanism that regulates catalase, a key antioxidant enzyme responsible for conversion of hydrogen peroxide to water and oxygen, remains to be elucidated. Therefore, we investigated the transcriptional regulatory mechanism controlling catalase expression in three human mammary cell lines: the normal mammary epithelial 250MK primary cells, the breast adenocarcinoma MCF-7 cells and an experimental model of MCF-7 cells resistant against oxidative stress resulting from chronic exposure to H2O2 (Resox), in which catalase was overexpressed...
August 31, 2016: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/27586798/role-of-il-17a-signalling-in-psoriasis-and-associated-bone-loss
#18
REVIEW
Özge Uluçkan, Erwin F Wagner
Inflammation is a physiological reaction to tissue injury, pathogen invasion and a natural response to various stress stimuli. Innate and adaptive immune cells are activated and recruited to the site of inflammation to suppress or promote inflammation. The recruitment and activation of immune cells is modulated by cytokines and chemokines, which are regulated by transcription factors, such as AP-1 (Fos/Jun), NF-kB, NFATs and STATs. Moreover, it is now appreciated that chronic inflammation can lead to systemic effects affecting the whole organism by mechanisms which are not well understood...
July 2016: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/27586508/gene-expression-of-immediate-early-genes-of-ap-1-transcription-factor-in-human-peripheral-blood-mononuclear-cells-in-response-to-ionizing-radiation
#19
S Nishad, Anu Ghosh
Ionizing radiation (IR) is considered ubiquitous in nature. The immediate early genes are considered the earliest nuclear targets of IR and are induced in the absence of de novo protein synthesis. Many of these genes encode transcription factors that constitute the first step in signal transduction to couple cytoplasmic effects with long-term cellular response. In this paper, coordinated transcript response of fos and jun family members which constitute activator protein 1 transcription factor was studied in response to IR in human peripheral blood lymphocytes at the G0 stage...
September 1, 2016: Radiation and Environmental Biophysics
https://www.readbyqxmd.com/read/27577923/anti-wrinkle-and-uv-protective-performance-of-cotton-fabrics-finished-with-5-carbonyloxy-succinic-benzene-1-2-4-tricarboxylic-acid
#20
Huan Qi, Junbing Pan, Feng-Ling Qing, Kelu Yan, Gang Sun
1,2,3,4-Butane tetracarboxylic acid (BTCA) has been considered as one of the most promising crosslinking agent to replace dimethylol dihydroxy ethylene urea (DMDHEU) for anti-wrinkle finishing on cotton fabrics. However, it could cause significant strength loss of the treated fabrics. In this study, a 5-(carbonyloxy succinic)-benzene-1,2,4-tricarboxylic acid (BSTA) was synthesized and applied as an effective crosslinking agent. The results show that fabrics treated with BSTA present the same or even better anti-wrinkle properties as that with BTCA...
December 10, 2016: Carbohydrate Polymers
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