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https://www.readbyqxmd.com/read/28222148/microrna-200a-silencing-protects-neural-stem-cells-against-cerebral-ischemia-reperfusion-injury
#1
Ji Ma, Shaofeng Shui, Xinwei Han, Dong Guo, Tengfei Li, Lei Yan
Neural stem cells (NSCs) play major roles in neurological recovery after cerebral infarction (CI). This study was trying to investigate whether miR-200a, a vital regulator in cell proliferation, migration and apoptosis, also has a role in oxygen-glucose deprivation/reperfusion (OGD/R) injured NSCs. In this study, primary NSCs were subjected to OGD/R conditions to mimic an in vitro CI model. Before OGD/R induction, NSCs were transfected with vector or shRNA against miR-200a to overexpress or suppress miR-200a expression...
2017: PloS One
https://www.readbyqxmd.com/read/28218232/corrigendum-thz1-targeting-cdk7-suppresses-stat-transcriptional-activity-and-sensitizes-t-cell-lymphomas-to-bcl2-inhibitors
#2
Florencia Cayrol, Pannee Praditsuktavorn, Tharu M Fernando, Nicholas Kwiatkowski, Rossella Marullo, M Nieves Calvo-Vidal, Jude Phillip, Benet Pera, Shao Ning Yang, Kaipol Takpradit, Lidia Roman, Marcello Gaudiano, Ramona Crescenzo, Jia Ruan, Giorgio Inghirami, Tinghu Zhang, Graciela Cremaschi, Nathanael S Gray, Leandro Cerchietti
No abstract text is available yet for this article.
February 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/28217557/regulation-of-antimicrobial-peptides-in-aedes-aegypti-aag2-cells
#3
Rudian Zhang, Yibin Zhu, Xiaojing Pang, Xiaoping Xiao, Renli Zhang, Gong Cheng
Antimicrobial peptides (AMPs) are an important group of immune effectors that play a role in combating microbial infections in invertebrates. Most of the current information on the regulation of insect AMPs in microbial infection have been gained from Drosophila, and their regulation in other insects are still not completely understood. Here, we generated an AMP induction profile in response to infections with some Gram-negative, -positive bacteria, and fungi in Aedes aegypti embryonic Aag2 cells. Most of the AMP inductions caused by the gram-negative bacteria was controlled by the Immune deficiency (Imd) pathway; nonetheless, Gambicin, an AMP gene discovered only in mosquitoes, was combinatorially regulated by the Imd, Toll and JAK-STAT pathways in the Aag2 cells...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28215626/dendritic-cells-that-highly-express-socs1-induce-t-cell-hypo-responsiveness-and-prolong-islet-allograft-survival
#4
Xinjun Lu, Maogen Chen, Zhicheng Xue, Xuzhi Zhang, Jiejie Xu, Linwei Wu, Ronghai Deng, Yi Ma
The capability of dendritic cells (DCs) to induce an immune response or immune tolerance is dependent on their status. Suppressor of cytokine signaling 1 (SOCS1) is a pivotal regulator that participates in negative feedback of the JAK-STAT pathway, which plays a key role in the differentiation, activation, and maturation of DCs. DCs that highly express SOCS1 may modulate DCs, and induce immune anergy or immune tolerance. In this study, we transduced DCs with the recombinant adenovirus Ad5F35 to highly express SOCS1...
February 2, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/28214951/inhibition-of-jak-stat-pathway-restrains-tslp-activated-dendritic-cells-mediated-inflammatory-t-helper-type-2-cell-response-in-allergic-rhinitis
#5
Zhaohui Shi, Weihong Jiang, Min Wang, Xiaocheng Wang, Xiaoyuan Li, Xiaodong Chen, Li Qiao
Thymic stromal lymphopoietin (TSLP) has recently been implicated as a key molecule for initiating allergic rhinitis (AR) at the cell-dendritic cell (DC) interface. Previous studies demonstrated that TSLP activated DCs to express more OX40 ligand (OX40L), which is associated with the initiation of T helper type 2 (Th2) cell responses. STAT phosphorylation has been reported to be promoted by TSLP. Thus, we investigated if the JAK/STAT pathway inhibitor CYT387 could affect TSLP-DC-mediated Th2 cell response in naive T cell and AR mice model...
February 18, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28214886/adenovirus-vector-harboring-the-hbcag-and-tripeptidyl-peptidase-ii-genes-induces-potent-cellular-immune-responses-in-vivo
#6
Quanhui Tan, Siyuan Ma, Jianjun Hu, Xiaohua Chen, Yongsheng Yu, Zhenghao Tang, Guoqin Zang
BACKGROUND: Chronic hepatitis B virus (HBV) infection is associated with a weak but specific cellular immune response of the host to HBV. Tripeptidyl peptidaseⅡ (TPPⅡ), an intracellular macromolecule and proteolytic enzyme, plays an important complementary and compensatory role for the proteasome during viral protein degradation and major histocompatibility complex class I antigen presentation by inducing a specific cellular immune response in vivo. Based on a previous study, we aimed to explore the role of MHC class I antigen presentation in vivo and the mechanisms that may be involved...
January 27, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214598/three-stats-are-involved-in-the-regulation-of-the-expression-of-antimicrobial-peptides-in-the-triangle-sail-mussel-hyriopsis-cumingii
#7
Yun-Jia Dai, Kai-Min Hui, Ying-Hao Zhang, Yan Liu, Yu-Qing Wang, Li-Juan Zhao, Li Lin, Lian-Qin Chai, Shun Wei, Jiang-Feng Lan
Janus kinase (Jak) and signal transducers and activators of transcription (STAT) signaling pathway is associated in antiviral and antibacterial immune response. Previous studies primarily investigated the function of STATs in mammals. For most invertebrates, only one STAT was found in each species, such as STAT92E was found in Drosophila melanogaster. The studies, which focus on the functional difference between various STATs in the same species of invertebrate, are limited. In the present study, three STATs (HcSTAT1, HcSTAT2 and HcSTAT3) were identified in triangle shell pearl mussel, Hyriopsis cumingii...
February 15, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28214593/jak-stat-pathway-directed-therapy-of-t-cell-leukemia-lymphoma-inspired-by-functional-and-structural-genomics
#8
REVIEW
Thomas A Waldmann
Abnormal activation of the γc cytokine JAK/STAT signaling pathway assessed by STAT3 or STAT5b phosphorylation was present in a proportion of many T-cell malignancies. Activating mutations of STAT3/STAT5b and JAK1/3 were present in some but not in all cases with constitutive signaling pathway activation. Using shRNA analysis pSTAT malignant T-cell lines were addicted to JAKs/STATs whether they were mutated or not. Activating JAK/STAT mutations were not sufficient to support leukemic cell proliferation but only augmented upstream pathway signals...
February 15, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28213977/mitochondria-targeted-esculetin-inhibits-pai-1-levels-by-modulating-stat3-activation-and-mir-19b-via-sirt3-role-in-acute-coronary-artery-syndrome
#9
Sujana Katta, Santosh Karnewar, Devayani Panuganti, Mahesh Kumar Jerald, Sastry B K, Srigiridhar Kotamraju
In this study, we explored the microRNAs responsible for the regulation of PAI-1 during LPS-stimulated inflammation in human aortic endothelial cells, subsequently studied the effect of a newly synthesized mitochondria-targeted esculetin (Mito-Esc) that was shown for its anti-atherosclerotic potential in modulating PAI-1 levels and its targeted miRs during angiotensin-II-induced atherosclerosis in ApoE(-/-) mice. LPS-stimulated PAI-1 was accompanied with an upregulation of miR-19b and down-regulation of miR-30c...
February 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28211717/isomeric-character-of-the-lowest-observed-4-state-in-44-s
#10
J J Parker, I Wiedenhöver, P D Cottle, J Baker, D McPherson, M A Riley, D Santiago-Gonzalez, A Volya, V M Bader, T Baugher, D Bazin, A Gade, T Ginter, H Iwasaki, C Loelius, C Morse, F Recchia, D Smalley, S R Stroberg, K Whitmore, D Weisshaar, A Lemasson, H L Crawford, A O Macchiavelli, K Wimmer
Previous experiments observed a 4^{+} state in the N=28 nucleus ^{44}S and suggested that this state may exhibit a hindered E2-decay rate, inconsistent with being a member of the collective ground state band. We populate this state via two-proton knockout from a beam of exotic ^{46}Ar projectiles and measure its lifetime using the recoil distance method with the GRETINA γ-ray spectrometer. The result, 76(14)_{stat}(20)_{syst}  ps, implies a hindered transition of B(E2;4^{+}→2_{1}^{+})=0.61(19) single-particle or Weisskopf units strength and supports the interpretation of the 4^{+} state as a K=4 isomer, the first example of a high-K isomer in a nucleus of such low mass...
February 3, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28210075/pancreatic-stellate-cell-pandora-s-box-for-pancreatic-disease-biology
#11
REVIEW
Ratnakar R Bynigeri, Aparna Jakkampudi, Ramaiah Jangala, Chivukula Subramanyam, Mitnala Sasikala, G Venkat Rao, D Nageshwar Reddy, Rupjyoti Talukdar
Pancreatic stellate cells (PSCs) were identified in the early 1980s, but received much attention after 1998 when the methods to isolate and culture them from murine and human sources were developed. PSCs contribute to a small proportion of all pancreatic cells under physiological condition, but are essential for maintaining the normal pancreatic architecture. Quiescent PSCs are characterized by the presence of vitamin A laden lipid droplets. Upon PSC activation, these perinuclear lipid droplets disappear from the cytosol, attain a myofibroblast like phenotype and expresses the activation marker, alpha smooth muscle actin...
January 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28210003/differential-signaling-through-p190-and-p210-bcr-abl-fusion-proteins-revealed-by-interactome-and-phosphoproteome-analysis
#12
J A Cutler, R Tahir, S K Sreenivasamurthy, C Mitchell, S Renuse, R S Nirujogi, A H Patil, M Heydarian, X Wong, X Wu, T-C Huang, M-S Kim, K Reddy, A Pandey
Two major types of leukemogenic BCR-ABL fusion proteins are p190(BCR-ABL) and p210(BCR-ABL). Although the two fusion proteins are closely related, they can lead to different clinical outcomes. A thorough understanding of the signaling programs employed by these two fusion proteins is necessary to explain these clinical differences. We took an integrated approach by coupling protein-protein interaction analysis using biotinylation identification (BioID) with global phosphorylation analysis to investigate the differences in signaling between these two fusion proteins...
February 17, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28209720/acquired-expression-of-cbl-q367p-in-mice-induces-dysplastic-myelopoiesis-mimicking-chronic-myelomonocytic-leukemia
#13
Yuichiro Nakata, Takeshi Ueda, Akiko Nagamachi, Norimasa Yamasaki, Ken-Ichiro Ikeda, Yasuyuki Sera, Keiyo Takubo, Akinori Kanai, Hideaki Oda, Masashi Sanada, Seishi Ogawa, Kohichiro Tsuji, Yasuhiro Ebihara, Linda Wolff, Zen-Ichiro Honda, Toshio Suda, Toshiya Inaba, Hiroaki Honda
Chronic myelomonocytic leukemia (CMML) is a hematological malignancy characterized by uncontrolled proliferation of dysplastic myelomonocytes and frequent progression to acute myeloid leukemia (AML). We identified mutations in the Cbl gene, which encodes a negative regulator of cytokine signaling, in a subset of CMML patients. To investigate the contribution of mutant Cbl in CMML pathogenesis, we generated conditional knock-in mice for Cbl that express wild-type Cbl in a steady state and inducibly express Cbl(Q367P) , a CMML-associated Cbl mutant...
February 16, 2017: Blood
https://www.readbyqxmd.com/read/28209510/microarray-and-transcription-binding-site-analysis-reveals-that-melatonin-attenuates-immune-responses-and-modulates-actin-rearrangement-in-macrophages
#14
Miki Kadena, Yutaro Kumagai, Alexis Vandenbon, Hitomi Matsushima, Haruka Fukamachi, Noboru Maruta, Hideo Kataoka, Takafumi Arimoto, Hirobumi Morisaki, Takahiro Funatsu, Hirotaka Kuwata
Melatonin produced by the pineal gland suppresses inflammatory responses in innate immune cells. However, the mechanism of how melatonin affects inflammatory gene regulation remains unclear. Here we performed comprehensive microarray analysis combined with transcription factor binding site (TFBS) analysis using LPS-induced mouse macrophages to investigate the effect of melatonin treatment. The results showed that melatonin preferentially downregulated interferon regulatory factors (IRFs) and signal transducers and activators of transcription (STATs) related signaling...
February 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28209270/crosstalk-between-glucocorticoids-and-il-4-modulates-ym1-expression-in-alternatively-activated-myeloid-cells
#15
Nathalie Ng Kuet Leong, Frank Brombacher, Alexander H Dalpke, Michael Weitnauer
Airway epithelial cells induce a tolerogenic microenvironment by modulating immune cells in the lung. We recently showed that the supernatant of airway epithelial cells induces two marker genes of alternative activation, Ym1 and Ms4a8a, in respiratory myeloid cells. This induction was partially mediated by glucocorticoids, secreted by airway epithelial cells. In this study, we further investigated Ym1 and Ms4a8a regulation in alternatively activated myeloid cells in the presence of the TH2 cytokines IL-4 and IL-13...
February 9, 2017: Immunobiology
https://www.readbyqxmd.com/read/28205271/lean-six-sigma-methodologies-improve-clinical-laboratory-efficiency-and-reduce-turnaround-times
#16
Tamer C Inal, Ozlem Goruroglu Ozturk, Filiz Kibar, Salih Cetiner, Selcuk Matyar, Gulcin Daglioglu, Akgun Yaman
BACKGROUND: Organizing work flow is a major task of laboratory management. Recently, clinical laboratories have started to adopt methodologies such as Lean Six Sigma and some successful implementations have been reported. This study used Lean Six Sigma to simplify the laboratory work process and decrease the turnaround time by eliminating non-value-adding steps. METHODS: The five-stage Six Sigma system known as define, measure, analyze, improve, and control (DMAIC) is used to identify and solve problems...
February 15, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28204864/high-bioavailability-curcumin-an-anti-inflammatory-and-neurosupportive-bioactive-nutrient-for-neurodegenerative-diseases-characterized-by-chronic-neuroinflammation
#17
REVIEW
Faheem Ullah, Andy Liang, Alejandra Rangel, Erika Gyengesi, Garry Niedermayer, Gerald Münch
Neuroinflammation is a pathophysiological process present in a number of neurodegenerative disorders, such as Alzheimer's disease, Huntington's disease, Parkinson's disease, stroke, traumatic brain injury including chronic traumatic encephalopathy and other age-related CNS disorders. Although there is still much debate about the initial trigger for some of these neurodegenerative disorders, during the progression of disease, broad range anti-inflammatory drugs including cytokine suppressive anti-inflammatory drugs (CSAIDs) might be promising therapeutic options to limit neuroinflammation and improve the clinical outcome...
February 15, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28204819/lncrna-co-expression-network-model-for-the-prognostic-analysis-of-acute-myeloid-leukemia
#18
Jia-Qi Pan, Yan-Qing Zhang, Jing-Hua Wang, Ping Xu, Wei Wang
Acute myeloid leukemia (AML) is a highly heterogeneous hematologic malignancy with great variability of prognostic behaviors. Previous studies have reported that long non-coding RNAs (lncRNAs) play an important role in AML and may thus be used as potential prognostic biomarkers. However, thus use of lncRNAs as prognostic biomarkers in AML and their detailed mechanisms of action in this disease have not yet been well characterized. For this purpose, in the present study, the expression levels of lncRNAs and mRNAs were calculated using the RNA-seq V2 data for AML, following which a lncRNA‑lncRNA co-expression network (LLCN) was constructed...
March 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28204605/stat-bite-cancer-incidence-rates-for-patients-aged-0-14-years-2009-2012
#19
(no author information available yet)
No abstract text is available yet for this article.
February 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28202754/jak-stat-signaling-pathways-and-inhibitors-affect-reversion-of-envelope-mutated-hiv-1
#20
Yudong Quan, Hongtao Xu, Yingshan Han, Thibault Mesplède, Mark A Wainberg
HIV can spread by both cell-free and cell-to-cell transmission. Here, we show that numerous of the amino acid changes in Env that are close to the CD4 binding pocket can affect HIV replication. We generated a number of mutant viruses that were unable to infect T cells as cell-free viruses but were nevertheless able to infect certain T cell lines as cell-associated viruses, followed by reversion to wild type. However, the activation of JAK-STAT signaling pathways caused inhibition of such cell-to-cell infection as well as the reversion of multiple HIV Env mutants that displayed differences in ability to bind to the CD4 receptor...
February 15, 2017: Journal of Virology
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