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https://www.readbyqxmd.com/read/27900085/id1-upregulation-and-foxo3a-downregulation-by-epstein-barr-virus-encoded-lmp1-in-hodgkin-s-lymphoma
#1
Jun-Ichiro Ikeda, Naoki Wada, Satoshi Nojima, Shinichiro Tahara, Yoko Tsuruta, Kaori Oya, Eiichi Morii
Cancer-initiating cells (CICs) are specialized cells that have the ability to self-renew and are multipotent. We recently demonstrated that Forkhead box O3a (FoxO3a)-expressing cells exhibited a CIC-like potential in Hodgkin's lymphoma (HL). A proportion of HL patients are infected with Epstein-Barr virus (EBV). EBV-encoded latent membrane protein (LMP) 1 downregulates FoxO3a, suggesting that FoxO3a expression may be abolished in EBV-positive HL. Inhibitors of DNA-binding (ID) proteins are highly conserved transcription factors mediating stem cell functions...
November 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/27864336/bmp4-promotes-mouse-ips-cell-differentiation-to-male-germ-cells-via-smad1-5-gata4-id1-and-id2
#2
Shi Yang, Qingqing Yuan, Minghui Niu, Jingmei Hou, Zijue Zhu, Min Sun, Zheng Li, Zuping He
Generation of male germ cells from pluripotent cells could provide male gametes for treating male infertility and offer an ideal model for unveiling molecular mechanisms of spermatogenesis. However, the influence and exact molecular mechanisms, especially downstream effectors of BMP4 signaling pathways, in male germ cell differentiation of the induce pluripotent stem (iPS) cells, remain unknown. This study was designed to explore the role and mechanism of BMP4 signaling in the differentiation of mouse iPS cells to male germ cells...
February 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/27855784/smad4-restricts-differentiation-to-promote-expansion-of-satellite-cell-derived-progenitors-during-skeletal-muscle-regeneration
#3
Nicole D Paris, Andrew Soroka, Alanna Klose, Wenxuan Liu, Joe V Chakkalakal
Skeletal muscle regenerative potential declines with age, in part due to deficiencies in resident stem cells (satellite cells, SCs) and derived myogenic progenitors (MPs); however, the factors responsible for this decline remain obscure. TGFβ superfamily signaling is an inhibitor of myogenic differentiation, with elevated activity in aged skeletal muscle. Surprisingly, we find reduced expression of Smad4, the downstream cofactor for canonical TGFβ superfamily signaling, and the target Id1 in aged SCs and MPs during regeneration...
November 18, 2016: ELife
https://www.readbyqxmd.com/read/27817024/expression-of-senescence-associated-genes-in-multipotent-mesenchymal-stromal-cells-during-long-term-cultivation-at-various-hypoxic-levels
#4
M V Lobanova, A Y Ratushnyy, L B Buravkova
The expression of several genes which functions are associated with cellular senescence was analyzed in multipotent mesenchymal stromal cells during long-term cultivation at different oxygen levels (20, 5, and 1%) using the RT² Profiler™ PCR Array Human Cellular Senescence system (Qiagen, United States). It was established that replicative senescence processes develop most actively in the cells cultured under the standard conditions (20% O2). The most significant changes were observed in the expression of CCND1, ID1, IGF1, PIK3CA, and SERPINE1 genes...
September 2016: Doklady. Biochemistry and Biophysics
https://www.readbyqxmd.com/read/27814765/antibody-responses-to-the-full-length-var2csa-and-its-dbl-domains-in-cameroonian-children-and-teenagers
#5
Barriere A Y Fodjo, Njika Atemnkeng, Livo Esemu, Emile K Yuosembom, Isabella A Quakyi, Viviane H M Tchinda, Joseph Smith, Ali Salanti, Jude Bigoga, Diane W Taylor, Rose G F Leke, Anna Babakhanyan
BACKGROUND: Antigenic variation of Plasmodium falciparum erythrocyte membrane protein 1 is a key parasite mechanism for immune evasion and parasite survival. It is assumed that the number of parasites expressing the same var gene must reach high enough numbers before the host can produce detectable levels of antibodies (Ab) to the variant. VAR2CSA is a protein coded for by one of 60 var genes that is expressed on the surface of infected erythrocytes (IE) and mediates IE binding to the placenta...
November 4, 2016: Malaria Journal
https://www.readbyqxmd.com/read/27793834/early-molecular-events-during-retinoic-acid-induced-differentiation-of-neuromesodermal-progenitors
#6
Thomas J Cunningham, Alexandre Colas, Gregg Duester
Bipotent neuromesodermal progenitors (NMPs) residing in the caudal epiblast drive coordinated body axis extension by generating both posterior neuroectoderm and presomitic mesoderm. Retinoic acid (RA) is required for body axis extension, however the early molecular response to RA signaling is poorly defined as is its relationship to NMP biology. As endogenous RA is first seen near the time when NMPs appear, we used WNT/FGF agonists to differentiate embryonic stem cells to NMPs which were then treated with a short 2-hour pulse of 25 nM RA or 1 µM RA followed by RNA-seq transcriptome analysis...
October 28, 2016: Biology Open
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
#7
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/27784745/mutational-landscape-and-gene-expression-patterns-in-adult-acute-myeloid-leukemias-with-monosomy-7-as-a-sole-abnormality
#8
Ann-Kathrin Eisfeld, Jessica Kohlschmidt, Krzysztof Mrozek, Stefano Volinia, James S Blachly, Deedra Nicolet, Christopher Oakes, Karl Kroll, Shelley Orwick, Andrew J Carroll, Richard M Stone, John C Byrd, Albert de la Chapelle, Clara D Bloomfield
Monosomy of chromosome 7 is the most frequent autosomal monosomy in acute myeloid leukemia (AML), where it associates with poor clinical outcomes. However, molecular features associated with this sole monosomy subtype (-7 AML) which may give insights into the basis for its poor prognosis have not been characterized. In this study, we analyzed 36 cases of -7 AML for mutations in 81 leukemia/cancer-associated genes using a customized targeted next-generation sequencing panel (Miseq). Global gene and microRNA expression profiles were also determined using paired RNA and small RNA sequencing data...
October 26, 2016: Cancer Research
https://www.readbyqxmd.com/read/27766493/ccn2-reduction-mediates-protective-effects-of-bmp7-treatment-in-obstructive-nephropathy
#9
Lucas L Falke, Jan Willem Leeuwis, Karen M Lyons, Christine L Mummery, Tri Q Nguyen, Roel Goldschmeding
Treatment with rhBMP7 exerts profound protective effects in a wide variety of experimental models of renal disease. However, little is known about how these protective effects are mediated, and which cells in the kidney are targeted by exogenous rhBMP7 treatment. To determine if rhBMP7 increases glomerular and tubulointerstitial canonical BMP signaling, we performed Unilateral Ureteral Obstruction (UUO, a widely used obstructive nephropathy model) in mice reporting transcriptional activity downstream of canonical BMP signaling by the expression of GFP under the BMP Responsive Element of the Id1 promoter (BRE:gfp mice)...
October 20, 2016: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/27724845/bmp-smad-signalling-output-is-highly-regionalized-in-cardiovascular-and-lymphatic-endothelial-networks
#10
Karen Beets, Michael W Staring, Nathan Criem, Elke Maas, Niels Schellinx, Susana M Chuva de Sousa Lopes, Lieve Umans, An Zwijsen
BACKGROUND: Bone morphogenetic protein (BMP) signalling has emerged as a fundamental pathway in endothelial cell biology and deregulation of this pathway is implicated in several vascular disorders. BMP signalling output in endothelial cells is highly context- and dose-dependent. Phosphorylation of the BMP intracellular effectors, SMAD1/5/9, is routinely used to monitor BMP signalling activity. To better understand the in vivo context-dependency of BMP-SMAD signalling, we investigated differences in BMP-SMAD transcriptional activity in different vascular beds during mouse embryonic and postnatal stages...
October 10, 2016: BMC Developmental Biology
https://www.readbyqxmd.com/read/27688784/wang-l-man-n-sun-x-j-et-al-regulation-of-akt-signaling-by-id1-controls-t-8-21-leukemia-initiation-and-progression-blood-2015-126-5-640-650
#11
(no author information available yet)
No abstract text is available yet for this article.
September 29, 2016: Blood
https://www.readbyqxmd.com/read/27635429/inhibitor-of-dna-binding-1-promotes-endothelial-progenitor-cell-proliferation-and-migration-by-suppressing-e2-2-through-the-helix-loop-helix-domain
#12
Yang Yu, Yuan Liang, Cunping Yin, Xiaoli Liu, Yong Su, Li Zhang, Hong Wang
Vascular endothelial damage is the major contributing factor to cardiovascular diseases. Recently, the therapeutic significance of endothelial progenitor cells (EPCs) has drawn increasing attention due to their roles in re-endothelialization following injury. The inhibitor of DNA-binding 1 (ID1) has been proven to promote EPC proliferation and migration, suggesting a critical function of ID1 in re-endothelialization. However, the underlying mechanisms remain undefined. In this study, ID1 was found to interact with E2-2 using immunoprecipitation analysis...
September 13, 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27610466/expression-of-inhibitor-of-differentiation-1-and-its-effects-on-angiogenesis-in-gastric-cancer
#13
Di-Nuo Li, Liang Wang, Lei Wang, Shen Li, Yu-Bing Wang
OBJECTIVE: To explore the effects of recombinant human endostatin (endostar, ES) and cisplatin on the growth of gastric cancer-transplanted tumor in nude mice and the expression of microvessel density (MVD). METHODS: Human gastric cancer SGC-7901 cells were subcutaneously injected into the armpit of nude mice to prepare cancer-bearing nude mice. A total of 32 cancer-bearing nude mice were divided into four groups (each group with 8 mice). The four groups included control group and other three groups in which mice were treated with 5 mg/kg of ES (group E), 5 mg/kg of cisplatin (group Ci), and 5 mg/kg of ES combined with 5 mg/kg of cisplatin (group C), respectively...
September 2016: Cancer Biotherapy & Radiopharmaceuticals
https://www.readbyqxmd.com/read/27602100/atf3-suppresses-escc-via-downregulation-of-id1
#14
Jian Li, Zishan Yang, Zhiuguo Chen, Yonghua Bao, Huijuan Zhang, Xinhui Fang, Wancai Yang
Esophageal cancer is one of the most prevalent forms of cancer and has a particularly high mortality rate due to early metastasis; however, the underlying mechanisms of its formation and progression remain unclear. The present study performed immunohistochemical analysis and observed that the expression of activating transcription factor 3 (ATF3) was reduced in esophageal squamous cell carcinoma (ESCC) in comparison with non-tumor adjacent tissues. By contrast, inhibitor of DNA binding 1 (ID1) was overexpressed in ESCC tissues, demonstrating an inverse correlation with ATF3 (P<0...
September 2016: Oncology Letters
https://www.readbyqxmd.com/read/27601729/musk-is-a-bmp-co-receptor-that-shapes-bmp-responses-and-calcium-signaling-in-muscle-cells
#15
Atilgan Yilmaz, Chandramohan Kattamuri, Rana N Ozdeslik, Carolyn Schmiedel, Sarah Mentzer, Christoph Schorl, Elena Oancea, Thomas B Thompson, Justin R Fallon
Bone morphogenetic proteins (BMPs) function in most tissues but have cell type-specific effects. Given the relatively small number of BMP receptors, this exquisite signaling specificity requires additional molecules to regulate this pathway's output. The receptor tyrosine kinase MuSK (muscle-specific kinase) is critical for neuromuscular junction formation and maintenance. Here, we show that MuSK also promotes BMP signaling in muscle cells. MuSK bound to BMP4 and related BMPs with low nanomolar affinity in vitro and to the type I BMP receptors ALK3 and ALK6 in a ligand-independent manner both in vitro and in cultured myotubes...
2016: Science Signaling
https://www.readbyqxmd.com/read/27573479/noggin-inactivation-affects-the-number-and-differentiation-potential-of-muscle-progenitor-cells-in-vivo
#16
Domiziana Costamagna, Hendrik Mommaerts, Maurilio Sampaolesi, Przemko Tylzanowski
Inactivation of Noggin, a secreted antagonist of Bone Morphogenetic Proteins (BMPs), in mice leads, among others, to severe malformations of the appendicular skeleton and defective skeletal muscle fibers. To determine the molecular basis of the phenotype, we carried out a histomorphological and molecular analysis of developing muscles Noggin(-/-) mice. We show that in 18.5 dpc embryos there is a marked reduction in muscle fiber size and a failure of nuclei migration towards the cell membrane. Molecularly, the absence of Noggin results in an increased BMP signaling in muscle tissue as shown by the increase in SMAD1/5/8 phosphorylation, concomitant with the induction of BMP target genes such as Id1, 2, 3 as well as Msx1...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27564861/maize-susceptibility-to-ustilago-maydis-is-influenced-by-genetic-and-chemical-perturbation-of-carbohydrate-allocation
#17
Matthias Kretschmer, Daniel Croll, James W Kronstad
The ability of biotrophic fungi to metabolically adapt to the host environment is a critical factor in fungal diseases of crop plants. In this study, we analyzed the transcriptome of maize tumors induced by Ustilago maydis to identify key features underlying metabolic shifts during disease. Among other metabolic changes, this analysis highlighted modifications during infection in transcriptional regulation of carbohydrate allocation and starch metabolism. We confirmed the relevance of these changes by establishing that symptom development was altered in an id1 (indeterminate1) mutant that has increased accumulation of sucrose as well as being defective in the vegetative to reproductive transition...
August 26, 2016: Molecular Plant Pathology
https://www.readbyqxmd.com/read/27546618/addiction-to-the-igf2-id1-igf2-circuit-for-maintenance-of-the-breast-cancer-stem-like-cells
#18
K Tominaga, T Shimamura, N Kimura, T Murayama, D Matsubara, H Kanauchi, A Niida, S Shimizu, K Nishioka, E-I Tsuji, M Yano, S Sugano, Y Shimono, H Ishii, H Saya, M Mori, K Akashi, K-I Tada, T Ogawa, A Tojo, S Miyano, N Gotoh
The transcription factor nuclear factor-κB (NF-κB) has important roles for tumorigenesis, but how it regulates cancer stem cells (CSCs) remains largely unclear. We identified insulin-like growth factor 2 (IGF2) is a key target of NF-κB activated by HER2/HER3 signaling to form tumor spheres in breast cancer cells. The IGF2 receptor, IGF1 R, was expressed at high levels in CSC-enriched populations in primary breast cancer cells. Moreover, IGF2-PI3K (IGF2-phosphatidyl inositol 3 kinase) signaling induced expression of a stemness transcription factor, inhibitor of DNA-binding 1 (ID1), and IGF2 itself...
August 22, 2016: Oncogene
https://www.readbyqxmd.com/read/27506892/bmal1-induces-osteoblast-differentiation-via-regulation-of-bmp2-expression-in-mc3t3-e1-cells
#19
Hyeon-Young Min, Kyeong-Min Kim, Gabbine Wee, Eun-Jung Kim, Won-Gu Jang
AIMS: Mammalian circadian rhythms regulate many metabolic processes. Recent studies suggest that brain and muscle Arnt-like 1 (BMAL1), an important component of mammalian circadian rhythm, is associated with insulin signaling. Several studies have shown that insulin is associated with bone metabolism; however, the relationship between BMAL1 and osteoblasts remains unclear. MAIN METHODS: Expression of osteogenic markers and Bmal1 in MC3T3-E1 cells was measured by RT-PCR and Western blotting...
October 1, 2016: Life Sciences
https://www.readbyqxmd.com/read/27485735/stat5-is-a-key-transcription-factor-for-il-3-mediated-inhibition-of-rankl-induced-osteoclastogenesis
#20
Jongwon Lee, Semun Seong, Jung Ha Kim, Kabsun Kim, Inyoung Kim, Byung-Chul Jeong, Kwang-Il Nam, Kyung Keun Kim, Lothar Hennighausen, Nacksung Kim
Among the diverse cytokines involved in osteoclast differentiation, interleukin (IL)-3 inhibits RANKL-induced osteoclastogenesis. However, the mechanism underlying IL-3-mediated inhibition of osteoclast differentiation is not fully understood. Here we demonstrate that the activation of signal transducers and activators of transcription 5 (STAT5) by IL-3 inhibits RANKL-induced osteoclastogenesis through the induction of the expression of Id genes. We found that STAT5 overexpression inhibited RANKL-induced osteoclastogenesis...
2016: Scientific Reports
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