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Yuying Sang, Yaru Wang, Hong Ni, Anne-Claire Cazalé, Yi-Min She, Nemo Peeters, Alberto P Macho
The subversion of plant cellular functions is essential for bacterial pathogens to proliferate in host plants and cause disease. Most bacterial plant pathogens employ a type-III secretion system to inject type-III effector (T3E) proteins inside plant cells, where they contribute to the pathogen-induced alteration of plant physiology. In this work, we found that the Ralstonia solanacearum T3E RipAY suppresses plant immune responses triggered by bacterial elicitors and by the phytohormone salicylic acid. Further biochemical analysis indicated that RipAY associates in planta with thioredoxins from Nicotiana benthamiana and Arabidopsis...
October 21, 2016: Molecular Plant Pathology
Ruijie Liu, Hadi Khalil, Suh-Chin J Lin, Michelle A Sargent, Allen J York, Jeffery D Molkentin
Nemo-like kinase (NLK) is an evolutionary conserved serine/threonine protein kinase implicated in development, proliferation and apoptosis regulation. Here we identified NLK as a gene product induced in the hearts of mice subjected to pressure overload or myocardial infarction injury, suggesting a potential regulatory role with pathological stimulation to this organ. To examine the potential functional consequences of increased NLK levels, cardiac-specific transgenic mice with inducible expression of this gene product were generated, as well as cardiac-specific Nlk gene-deleted mice...
2016: PloS One
Nadja Borisow, Ingo Kleiter, Anna Gahlen, Katrin Fischer, Klaus-Dieter Wernecke, Florence Pache, Klemens Ruprecht, Joachim Havla, Markus Krumbholz, Tania Kümpfel, Orhan Aktas, Marius Ringelstein, Christian Geis, Christoph Kleinschnitz, Achim Berthele, Bernhard Hemmer, Klemens Angstwurm, Robert Weissert, Jan-Patrick Stellmann, Simon Schuster, Martin Stangel, Florian Lauda, Hayrettin Tumani, Christoph Mayer, Lena Zeltner, Ulf Ziemann, Ralf A Linker, Matthias Schwab, Martin Marziniak, Florian Then Bergh, Ulrich Hofstadt-van Oy, Oliver Neuhaus, Alexander Winkelmann, Wael Marouf, Lioba Rückriem, Jürgen Faiss, Brigitte Wildemann, Friedemann Paul, Sven Jarius, Corinna Trebst, Kerstin Hellwig
BACKGROUND: Gender and age at onset are important epidemiological factors influencing prevalence, clinical presentation, and treatment response in autoimmune diseases. OBJECTIVE: To evaluate the impact of female sex and fertile age on aquaporin-4-antibody (AQP4-ab) status, attack localization, and response to attack treatment in patients with neuromyelitis optica (NMO) and its spectrum disorders (neuromyelitis optica spectrum disorder (NMOSD)). METHODS: Female-to-male ratios, diagnosis at last visit (NMO vs NMOSD), attack localization, attack treatment, and outcome were compared according to sex and age at disease or attack onset...
October 6, 2016: Multiple Sclerosis: Clinical and Laboratory Research
Shanmuganathan Chandrakasan, Rebecca A Marsh, Gulbu Uzel, Steven M Holland, Kara N Shah, Jack Bleesing
Patients with NEMO deficiency tolerate myeloablative hematopoietic stem cell conditioning and transplant, and most patients achieve adequate immune reconstitution to correct the underlying immune deficiency.
October 12, 2016: Journal of Allergy and Clinical Immunology
Xiaoguang Li, Na Liu, Yizhu Wang, Jinglong Liu, Haigang Shi, Zhenzhen Qu, Tingting Du, Bin Guo, Bin Gu
Type 2 diabetes mellitus (T2DM) is associated with inhibited osteogenesis of bone marrow mesenchymal stem cells (BMSCs). Brain and muscle ARNT-like protein 1 (BMAL1) has been linked to the T2DM-related bone remodeling, however, the specific mechanism is still unclear. Herein, we aimed to determine the role of BMAL1 in T2DM-induced suppression of BMSCs osteogenesis. Inhibited osteogenesis and BMAL1 expression were showed in diabetic BMSCs. And while β-catenin and T cell factor (TCF) expression were decreased, the glycogen synthase kinase-3β (GSK-3β) and nemo-like kinase (NLK) expression were increased in diabetic BMSCs...
October 4, 2016: Molecular and Cellular Endocrinology
Jean-Yves Tinevez, Nick Perry, Johannes Schindelin, Genevieve M Hoopes, Gregory D Reynolds, Emmanuel Laplantine, Sebastian Y Bednarek, Spencer L Shorte, Kevin W Eliceiri
We present TrackMate, an open source Fiji plugin for the automated, semi-automated, and manual tracking of single-particles. It offers a versatile and modular solution that works out of the box for end users, through a simple and intuitive user interface. It is also easily scriptable and adaptable, operating equally well on 1D over time, 2D over time, 3D over time, or other single and multi-channel image variants. TrackMate provides several visualization and analysis tools that aid in assessing the relevance of results...
October 3, 2016: Methods: a Companion to Methods in Enzymology
Nidhal Soualeh, Imen Dridi, Gauthier Eppe, Christophe Némos, Rachid Soulimani, Jaouad Bouayed
Several lines of evidence indicate that early-life inflammation may predispose to mental illness, including depression, in later-life. We investigated the impact of perinatal exposure to polluted eels on neonatal, postnatal, and adult brain inflammation, and on the resignation behavior of male and female adult offspring mice. The effects of maternal standard diet (laboratory food) were compared to the same diet enriched with low, intermediate, or highly polluted eels. Brain inflammatory markers including cytokines were assessed in offspring mice on the day of birth (i...
October 1, 2016: Brain, Behavior, and Immunity
Junji Xing, Leiyun Weng, Bin Yuan, Zhuo Wang, Li Jia, Rui Jin, Hongbo Lu, Xian Chang Li, Yong-Jun Liu, Zhiqiang Zhang
The respiratory tract is heavily populated with innate immune cells, but the mechanisms that control such cells are poorly defined. Here we found that the E3 ubiquitin ligase TRIM29 was a selective regulator of the activation of alveolar macrophages, the expression of type I interferons and the production of proinflammatory cytokines in the lungs. We found that deletion of TRIM29 enhanced macrophage production of type I interferons and protected mice from infection with influenza virus, while challenge of Trim29(-/-) mice with Haemophilus influenzae resulted in lethal lung inflammation due to massive production of proinflammatory cytokines by macrophages...
October 3, 2016: Nature Immunology
Nadine Kuttkat, Antje Mohs, Kim Ohl, Guido Hooiveld, Thomas Longerich, Klaus Tenbrock, Francisco Javier Cubero, Christian Trautwein
OBJECTIVE: Th17 cells are a subset of CD4(+) T-helper cells characterised by interleukin 17 (IL-17) production, a cytokine that plays a crucial role in inflammation-associated diseases. The cyclic AMP-responsive element modulator-α (CREMα) is a central mediator of T-cell pathogenesis, which contributes to increased IL-17 expression in patients with autoimmune disorders. Since an increased Th17 response is associated with a poor prognosis in patients with chronic liver injury, we investigated the relevance of Th17 cells for chronic liver disease (CLD) and hepatocarcinogenesis...
September 29, 2016: Gut
Suprabhat Mukherjee, Sandip Mukherjee, Samir Bhattacharya, Santi Prasad Sinha Babu
Lymphatic filariasis is a vector borne parasitic disease results morbidities, disabilities and socio-economic loss in each year globally. Inflammatory consequences associated with any form of filariasis have drawn special attention. However, the molecular insight behind inflammation of host macrophage (MФ) is considered as one of the shaded areas in filarial research. Herein major emphasis was given to study the signaling pathway of MФ inflammation induced by surface proteins (SPs) of filarial parasite through in vitro and in vivo approaches...
September 23, 2016: Parasite Immunology
Xiaoyu Ma, Xiaolong Liu, Di Zhou, Yajiao Bai, Beibei Gao, Zhifeng Zhang, Zhenkui Qin
The NF-κB pathway is known to be involved in regulating apoptosis, inflammation and immunity in organisms. In this study, we first identified full-length cDNA sequences of two key molecules in the NF-κB pathway, namely, NEMO and p65, and characterized their responses in the hindgut of Urechis unicinctus (Echiura, Urechidae) exposed to sulfide. The full-length of cDNA was 2491 bp for U. unicinctus NEMO (UuNEMO) and 1971 bp for U. unicinctus p65 (Uup65), and both polyclonal antibodies were prepared using UuNEMO or Uup65 expressed prokaryotically with the sequence of their whole open reading frame...
September 12, 2016: Fish & Shellfish Immunology
Martin Seule, Rimmon Isaak, Renan Sanchez-Porras, Oliver Sakowitz, Emanuela Keller, Andreas Unterberg, Berk Orakcioglu
BACKGROUND: Bedside monitoring of cerebral blood flow (CBF) may provide new insights into the pathophysiology of brain injury, allow early detection of secondary ischemia, and help guide therapy. OBJECTIVE: To evaluate a new brain tissue probe for serial CBF monitoring using near-infrared spectroscopy and indocyanine green dye dilution (NeMo Probe) compared with the existing thermal diffusion probe (QFlow 500 Probe). METHODS: In 7 pigs, the NeMo Probe and QFlow 500 Probe were inserted into the subcortical white matter...
September 9, 2016: Neurosurgery
Lan Shao, Boya Feng, Yuying Zhang, Huanjiao Zhou, Weidong Ji, Wang Min
Adipose tissue dysfunction correlates with the development of diabetes. Mice with an adipocyte-specific deletion of the SUMO-specific protease SENP1 develop symptoms of type-1 diabetes mellitus (T1DM). Peri-pancreatic adipocytes (PATs) exert both systemic and paracrine effects on pancreases function. Our recent studies report that PATs of SENP1-deficient mice have increased proinflammatory cytokine production compared with other adipose depots. Proinflammatory cytokines produced from PATs not only have direct cytotoxic effects on pancreatic islets, but also increase CCL5 expression in adjacent pancreatic islets, which induces persistent inflammation in pancreases by acquisition of Th1 and Th17 effector T cell subsets...
July 2016: Adipocyte
Albrecht Neesse, Volker Ellenrieder
No abstract text is available yet for this article.
September 2, 2016: Gut
Janine Scholefield, Ricardo Henriques, Anca F Savulescu, Elisabeth Fontan, Alix Boucharlat, Emmanuel Laplantine, Asma Smahi, Alain Israël, Fabrice Agou, Musa M Mhlanga
The NF-κB pathway has critical roles in cancer, immunity and inflammatory responses. Understanding the mechanism(s) by which mutations in genes involved in the pathway cause disease has provided valuable insight into its regulation, yet many aspects remain unexplained. Several lines of evidence have led to the hypothesis that the regulatory/sensor protein NEMO acts as a biological binary switch. This hypothesis depends on the formation of a higher-order structure, which has yet to be identified using traditional molecular techniques...
2016: Nature Communications
Linlin Guo, Hannah Heejung Lee, María de Las Mercedes Noriega, Hans-Joachim Paust, Gunther Zahner, Friedrich Thaiss
Acute kidney injury (AKI) is associated with poor patient outcome and a global burden for end-stage renal disease. Ischemia-reperfusion injury (IRI) is one of the major causes of AKI, and experimental work has revealed many details of the inflammatory response in the kidney. Here, we investigated whether deletion of the NF-κB kinases IKK2 or NEMO in lymphocytes or systemic inhibition of IKK2 would cause different kidney inflammatory responses after IRI induction. Serum creatinine, BUN level and renal tubular injury score were significantly increased in CD4creIKK2f/f (CD4xIKK2Δ) and CD4creNEMOf/f (CD4xNEMOΔ) mice compared with CD4cre mice after IRI induction...
August 31, 2016: American Journal of Physiology. Renal Physiology
Xu Yan, Jianxun Liu, Hongjin Wu, Yuna Liu, Sidao Zheng, Chengying Zhang, Cui Yang
BACKGROUND/AIMS: Ginsenoside Rb1 (GS-Rb1) is one of the most important active pharmacological extracts of the Traditional Chinese Medicine ginseng, with extensive evidence of its cardioprotective properties. Mir-208 has been shown to act as a biomarker of acute myocardial infarction in vivo studies including man. However the impact of miR-208 on the protective effect of GS-Rb1 in hypoxia/ischemia injured cardiomyocytes remains unclear. The current study aims to investigate the target gene of miR-208 and the impact on the protective effect of GS-Rb1 in hypoxia/ischemia (H/I) injuried cardiomyocytes...
2016: Cellular Physiology and Biochemistry
Alessandra Pescatore, Elio Esposito, Peter Draber, Henning Walczak, Matilde Valeria Ursini
Incontinentia Pigmenti (IP) is a rare X-linked disease characterized by early male lethality and multiple abnormalities in heterozygous females. IP is caused by NF-κB essential modulator (NEMO) mutations. The current mechanistic model suggests that NEMO functions as a crucial component mediating the recruitment of the IκB-kinase (IKK) complex to tumor necrosis factor receptor 1 (TNF-R1), thus allowing activation of the pro-survival NF-κB response. However, recent studies have suggested that gene activation and cell death inhibition are two independent activities of NEMO...
2016: Cell Death & Disease
Seshiru Nakazawa, Daisuke Oikawa, Ryohei Ishii, Takashi Ayaki, Hirotaka Takahashi, Hiroyuki Takeda, Ryuichiro Ishitani, Kiyoko Kamei, Izumi Takeyoshi, Hideshi Kawakami, Kazuhiro Iwai, Izuho Hatada, Tatsuya Sawasaki, Hidefumi Ito, Osamu Nureki, Fuminori Tokunaga
Optineurin (OPTN) mutations cause neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS) and glaucoma. Although the ALS-associated E478G mutation in the UBAN domain of OPTN reportedly abolishes its NF-κB suppressive activity, the precise molecular basis in ALS pathogenesis still remains unclear. Here we report that the OPTN-UBAN domain is crucial for NF-κB suppression. Our crystal structure analysis reveals that OPTN-UBAN binds linear ubiquitin with homology to NEMO. TNF-α-mediated NF-κB activation is enhanced in OPTN-knockout cells, through increased ubiquitination and association of TNF receptor (TNFR) complex I components...
2016: Nature Communications
Roberto R Rosato, Sarah S Kolla, Stefanie K Hock, Jorge A Almenara, Ankita Patel, Sanjay Amin, Peter Atadja, Paul B Fisher, Paul Dent, Steven Grant
No abstract text is available yet for this article.
August 19, 2016: Journal of Biological Chemistry
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