keyword
MENU ▼
Read by QxMD icon Read
search

Type 3 secretion

keyword
https://www.readbyqxmd.com/read/29777569/improving-metabolic-stability-with-deuterium-the-discovery-of-hwl-066-a-potent-and-long-acting-free-fatty-acid-receptor-1-agonists
#1
Chunxia Liu, Zheng Li, Wei Shi, Huilan Li, Nasi Wang, Yuxuan Dai, Chen Liao, Wenlong Huang, Hai Qian
The free fatty acid receptor 1 (FFA1) is a potential target due to its function in enhancing of glucose-stimulated insulin secretion. The FFA1 agonist GW9508 has great potential for the treatment of type 2 diabetes mellitus, but it has been suffering from high plasma clearance probably because the phenylpropanoic acid is vulnerable to β-oxidation. To identify orally available analog without influence on the unique pharmacological mechanism of GW9508, we tried to interdict the metabolically labile group by incorporating two deuterium atoms at the α-position of phenylpropionic acid affording compound 4 (HWL-066)...
May 18, 2018: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/29773828/single-nucleotide-polymorphisms-in-the-g-protein-coupled-receptor-kinase-5-grk5-gene-are-associated-with-plasma-ldl-cholesterol-levels-in-humans
#2
Stefan Z Lutz, Mathias Falcenberg, Fausto Machicao, Andreas Peter, Martin Kächele, Elko Randrianarisoa, Angela Lehn-Stefan, Robert Wagner, Jürgen Machann, Fritz Schick, Martin Heni, Axel Ullrich, Andreas Fritsche, Norbert Stefan, Hans-Ulrich Häring, Harald Staiger, Konstantinos Kantartzis
Genetically modified mice models suggest an important role for G-protein-coupled receptor kinase 5 (GRK5) in the pathophysiology of obesity and related disorders. We investigated whether single nucleotide polymorphisms (SNPs) in the gene encoding GRK5 affect cardiometabolic traits in humans. We genotyped 3 common SNPs in intron 1 (rs1980030, rs10466210, rs9325562) and one SNP in intron 3 (rs10886471) of GRK5 in 2332 subjects at risk for type 2 diabetes. Total- and visceral fat mass were measured by magnetic resonance (MR) tomography and liver fat content by 1 H-MR spectroscopy...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773756/mir126-5p-down-regulation-facilitates-axon-degeneration-and-nmj-disruption-via-a-non-cell-autonomous-mechanism-in-als
#3
Roy Maimon, Ariel Ionescu, Avichai Bonnie, Sahar Sweetat, Shane Wald-Altman, Shani Inbar, Tal Gradus, Davide Trotti, Miguel Weil, Oded Behar, Eran Perlson
Axon degeneration and disruption of neuromuscular junctions (NMJs) are key events in Amyotrophic Lateral Sclerosis (ALS) pathology. Although the disease's etiology is not fully understood, it is thought to involve a non-cell-autonomous mechanism and alterations in RNA metabolism. Here, we identified reduced levels of miR-126-5p in pre-symptomatic ALS male mice models, and an increase in its targets: axon destabilizing type-3 Semaphorins and their co-receptor Neuropilins. Utilizing compartmentalized in vitro co-cultures, we demonstrated that myocytes expressing diverse ALS-causing mutations promote axon degeneration and NMJ dysfunction, which were inhibited by applying Neuropilin1 (NRP1) blocking antibody...
May 17, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29771765/comparison-of-fasting-human-pancreatic-polypeptide-levels-among-patients-with-pancreatic-ductal-adenocarcinoma-chronic-pancreatitis-and-type-2-diabetes-mellitus
#4
Sajan Jiv Singh Nagpal, William R Bamlet, Yogish C Kudva, Suresh T Chari
OBJECTIVES: Human pancreatic polypeptide (HPP) is a hormone secreted by the ventral pancreas. While postprandial HPP levels have been studied in chronic pancreatitis (CP) and pancreatic ductal adenocarcinoma (PDAC), there are limited data on fasting HPP in these diseases. METHODS: Fasting serum HPP was measured in the following groups of patients: CP with diabetes mellitus (DM) (n = 16), CP without DM (n = 34), PDAC with new-onset DM (n = 50), PDAC without DM (n = 49), new-onset type 2 DM (n = 50), and controls without DM (n = 49)...
May 17, 2018: Pancreas
https://www.readbyqxmd.com/read/29770512/x-ray-crystal-structures-of-the-type-ivb-secretion-system-dotb-atpases
#5
Marie S Prevost, Gabriel Waksman
Human infections by the intracellular bacterial pathogen Legionella pneumophila result in a severe form of pneumonia, the Legionnaire's disease. L. pneumophila utilises a type IVb secretion (T4bS) system termed "dot/icm" to secrete protein effectors to the host cytoplasm. The dot/icm system is powered at least in part by a functionally critical AAA+ ATPase, a protein called DotB, thought to belong to the VirB11 family of proteins. Here we present the crystal structure of DotB at 3.19 Å resolution, in its hexameric form...
May 17, 2018: Protein Science: a Publication of the Protein Society
https://www.readbyqxmd.com/read/29769543/the-cytokine-secretion-profile-of-mesenchymal-stromal-cells-is-determined-by-surface-structure-of-the-microenvironment
#6
Daniëlle G Leuning, Nick R M Beijer, Nadia A du Fossé, Steven Vermeulen, Ellen Lievers, Cees van Kooten, Ton J Rabelink, Jan de Boer
Mesenchymal stromal cells (MSC) secrete factors that contribute to organ homeostasis and repair in a tissue specific manner. For instance, kidney perivascular mesenchymal stromal cells (kPSCs) can facilitate renal epithelial repair through secretion of hepatocyte growth factor (HGF) while the secretome of bone marrow MSCs gives rise to immunosuppression. Stromal cells function in a complex 3-dimensional (3D) connective tissue architecture that induces conformational adaptation. Here we tested the hypothesis that surface topography and associated cell adaptations dictate stromal cell function through tuning of the cytokines released...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29768491/plasmodium-falciparum-dipeptidyl-aminopeptidase-3-activity-is-important-for-efficient-erythrocyte-invasion-by-the-malaria-parasite
#7
Christine Lehmann, Michele Ser Ying Tan, Laura E de Vries, Ilaria Russo, Mateo Isidrio Sanchez, Daniel E Goldberg, Edgar Deu
Parasite egress from infected erythrocytes and invasion of new red blood cells are essential processes for the exponential asexual replication of the malaria parasite. These two tightly coordinated events take place in less than a minute and are in part regulated and mediated by proteases. Dipeptidyl aminopeptidases (DPAPs) are papain-fold cysteine proteases that cleave dipeptides from the N-terminus of protein substrates. DPAP3 was previously suggested to play an essential role in parasite egress. However, little is known about its enzymatic activity, intracellular localization, or biological function...
May 16, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29767240/munc13%C3%A2-4-mediates-human-neutrophil-elastase%C3%A2-induced-airway-mucin5ac-hypersecretion-by-interacting-with-syntaxin2
#8
Rui Xu, Jia Zhou, Xiang-Dong Zhou, Qi Li, Juliy M Perelman, Victor P Kolosov
The overexpression and hypersecretion of mucus is a hallmark of chronic pulmonary inflammatory disease. Mucin5AC (MUC5AC) is a major component of airway gel‑forming mucin. Members of the Unc13 (Munc13) protein family act as important activators of granule exocytosis from various types of mammalian cells. The present study aimed to determine the role of Munc13 family proteins in MUC5AC secretion via an in vitro study with BEAS‑2B and Calu‑3 cell lines. Reverse transcription‑quantitative polymerase chain reaction and western blotting indicated that stimulation of the cells with 100 nM human neutrophil elastase (hNE) for 1 h did not affect the expression of either unc13 homolog B (Munc13‑2) or unc13 homolog D (Munc13‑4), but immunofluorescence analysis demonstrated that hNE treatment was associated with the recruitment of Munc13‑4 to the plasma membrane...
May 14, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29766359/two-types-of-ectopic-cushing-syndrome-or-a-continuum-review
#9
REVIEW
Marta Araujo Castro, Mónica Marazuela Azpiroz
BACKGROUND: Two types of ectopic Cushing syndrome (ECS) are described: ECS associated with aggressive neoplasms, and ECS with indolent and occult tumors, however, there is a lack of studies that thoroughly review their characteristics. METHODS: A systematic review was carried out on PUBMED of all the papers about the ECS, in order to better define the types of this subcategory of Cushing's syndrome, highlighting the differential aspects between these subgroups. RESULTS: It was found that in 50% of cases the prototypic "aggressive" ECS is caused by small cell lung carcinomas (SCLC)...
May 15, 2018: Pituitary
https://www.readbyqxmd.com/read/29763968/binding-to-type-i-collagen-is-essential-for-the-infectivity-of-vibrio-parahaemolyticus-to-host-cells
#10
Ming Liu, Shanshan Yang, Chengkun Zheng, Xuesong Luo, Weicheng Bei, Peng Cai
Vibrio parahaemolyticus is a globally present marine bacterium that often leads to acute gastroenteritis. Two type III secretion systems (T3SSs), T3SS1 and T3SS2, are important for host infection. Type I collagen is a component of the extracellular matrix and is abundant in the small intestine. However, whether type I collagen serves as the cellular receptor for V. parahaemolyticus infection of host cells remains enigmatic. In this study, we discovered that type I collagen is not only important for the attachment of V...
May 15, 2018: Cellular Microbiology
https://www.readbyqxmd.com/read/29761571/frequency-of-shedding-of-respiratory-pathogens-in-horses-recently-imported-to-the-united-states
#11
Fauna Leah Smith, Johanna L Watson, Sharon J Spier, Isabelle Kilcoyne, Samantha Mapes, Claudia Sonder, Nicola Pusterla
BACKGROUND: Imported horses that have undergone recent long distance transport might represent a serious risk for spreading infectious respiratory pathogens into populations of horses. OBJECTIVE: To investigate the frequency of shedding of respiratory pathogens in recently imported horses. ANIMALS: All imported horses with signed owner consent (n = 167) entering a USDA quarantine for contagious equine metritis from October 2014 to June 2016 were enrolled in the study...
May 15, 2018: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29760875/glycogen-synthase-kinase-3-promotes-multicellular-development-over-unicellular-encystation-in-encysting-dictyostelia
#12
Yoshinori Kawabe, Takahiro Morio, Yoshimasa Tanaka, Pauline Schaap
Background: Glycogen synthase kinase 3 (GSK3) regulates many cell fate decisions in animal development. In multicellular structures of the group 4 dictyostelid Dictyostelium discoideum , GSK3 promotes spore over stalk-like differentiation. We investigated whether, similar to other sporulation-inducing genes such as cAMP-dependent protein kinase (PKA), this role of GSK3 is derived from an ancestral role in encystation of unicellular amoebas. Results: We deleted GSK3 in Polysphondylium pallidum , a group 2 dictyostelid which has retained encystation as an alternative survival strategy...
2018: EvoDevo
https://www.readbyqxmd.com/read/29760540/ambiguous-roles-of-innate-lymphoid-cells-in-chronic-development-of-liver-diseases
#13
REVIEW
Yue Shen, Jing Li, Si-Qi Wang, Wei Jiang
Innate lymphoid cells (ILCs) are defined as a distinct arm of innate immunity. According to their profile of secreted cytokines and lineage-specific transcriptional factors, ILCs can be categorized into the following three groups: group 1 ILCs (including natural killer (NK) cells and ILC1s) are dependent on T-bet and can produce interferon-γ; group 2 ILCs (ILC2s) are dependent on GATA3 and can produce type 2 cytokines, including interleukin (IL)-5 and IL-13; and, group 3 ILCs (including lymphoid tissue-like cells and ILC3s) are dependent on RORγt and can produce IL-22 and IL-17...
May 14, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29756443/shellac-films-as-a-natural-dielectric-layer-for-enhanced-electron-transport-in-polymer-field-effect-transistors
#14
Seung Woon Baek, Jong-Woon Ha, Minho Yoon, Do-Hoon Hwang, Jiyoul Lee
Shellac, a natural polymer resin obtained from the secretions of lac bugs, was evaluated as a dielectric layer in organic field-effect transistors (OFETs) on the basis of donor (D)-acceptor (A)-type conjugated semiconducting copolymers. The measured dielectric constant and breakdown field of the shellac layer were ~3.4 and 3.0 MV/cm, respectively, comparable with those of a poly(4-vinylphenol) (PVP) film, a commonly used dielectric material. Bottom-gate/top-contact (BG/TC) OFETs were fabricated with shellac or PVP as the dielectric layer and one of three different D-A-type semiconducting copolymers as the active layer: poly(cyclopentadithiophene-alt-benzothiadiazole) [P(CDT-BTZ)] with p-type characteristics, poly(naphthalene-bis(dicarboximide)-alt-bithiophene) [P(NDI2OD-T2)] with n-type characteristics, and poly(dithienyl-diketopyrrolopyrrole-alt-thienothiophene) [P(DPP2T-TT)] with ambipolar characteristics...
May 14, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29755568/exosomes-secreted-by-normoxic-and-hypoxic-cardiosphere-derived-cells-have-anti-apoptotic-effect
#15
Helia Namazi, Iman Namazi, Parisa Ghiasi, Hassan Ansari, Sarah Rajabi, Ensiyeh Hajizadeh-Saffar, Nasser Aghdami, Elham Mohit
Cardiosphere-derived cells (CDCs) have emerged as one of the most promising stem cell types for cardiac protection and repair. Exosomes are required for the regenerative effects of human CDCs and mimic the cardioprotective benefits of CDCs such as anti-apoptotic effect in animal myocardial infarction (MI) models. Here we aimed to investigate the anti-apoptotic effect of the hypoxic and normoxic human CDCs-derived exosomes on induced apoptosis in human embryonic stem cell-derived cardiomyocytes (hESC-CMs). In this study, CDCs were cultured under normoxic (18% O2 ) and hypoxic (1% O2 ) conditions and CDC-exosomes were isolated from conditioned media by differential ultracentrifugation...
2018: Iranian Journal of Pharmaceutical Research: IJPR
https://www.readbyqxmd.com/read/29755357/-n-glycosylation-of-lipocalin-2-is-not-required-for-secretion-or-exosome-targeting
#16
Erawan Borkham-Kamphorst, Eddy Van de Leur, Steffen K Meurer, Eva M Buhl, Ralf Weiskirchen
Lipocalin 2 (LCN2) is a highly conserved secreted adipokine acting as a serum transport protein for small hydrophobic molecules such as fatty acids and steroids. In addition, LCN2 limits bacterial growth by sequestering iron-containing siderophores and further protects against intestinal inflammation and tumorigenesis associated with alterations in the microbiota. Human LCN2 contains one N -glycosylation site conserved in other species. It was postulated that this post-translational modification could facilitate protein folding, protects from proteolysis, is required for proper trafficking from the Golgi apparatus to the cell surface, and might be relevant for effective secretion...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29753610/improvement-of-hyperglycemia-in-a-murine-model-of-insulin-resistance-and-high-glucose-and-inflammasome-mediated-il-1%C3%AE-expressions-in-macrophages-by-silymarin
#17
Chun-Ping Lu, Chien-Yu Huang, Szu-Hsuan Wang, Chih-Hsien Chiu, Lan-Hui Li, Kuo-Feng Hua, Tzu-Hua Wu
Macrophages and inflammasome pathway are involved in high-glucose toxicity and development of insulin resistance. Silymarin (SMR) was known to modulate glucose homeostasis and reduce inflammation. However, it is still unknown whether SMR possess anti-hyperglycemic effects in diabetic-like knockout mice (Hnf-1αkin/- /Ins.cre mice) with insulin resistance and also unclear how SMR regulates LPS induced stress markers and pro-inflammatory cytokines under stresses of high glucose (HG) or NLRP3 inflammasome activation...
May 10, 2018: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29750813/autophagy-mediates-tumor-necrosis-factor-%C3%AE-induced-phenotype-switching-in-vascular-smooth-muscle-a7r5-cell-line
#18
Marina García-Miguel, Jaime A Riquelme, Ignacio Norambuena-Soto, Pablo E Morales, Fernanda Sanhueza-Olivares, Constanza Nuñez-Soto, David Mondaca-Ruff, Nicole Cancino-Arenas, Alejandra San Martín, Mario Chiong
Vascular smooth muscle cells (VSMC) dedifferentiation from a contractile to a synthetic phenotype contributes to atherosclerosis. Atherosclerotic tissue has a chronic inflammatory component with high levels of tumor necrosis factor-α (TNF-α). VSMC of atheromatous plaques have increased autophagy, a mechanism responsible for protein and intracellular organelle degradation. The aim of this study was to evaluate whether TNF-α induces phenotype switching of VSMCs and whether this effect depends on autophagy...
2018: PloS One
https://www.readbyqxmd.com/read/29747616/association-of-retinol-binding-protein-4-and-transthyretin-with-triglyceride-levels-and-insulin-resistance-in-rural-thais-with-high-type-2-diabetes-risk
#19
Karunee Kwanbunjan, Pornpimol Panprathip, Chanchira Phosat, Noppanath Chumpathat, Naruemon Wechjakwen, Somchai Puduang, Ratchada Auyyuenyong, Ina Henkel, Florian J Schweigert
BACKGROUND: Retinol binding protein 4 (RBP4), a protein secreted by adipocytes and bound in plasma to transthyretin (TTR), has been associated with obesity, the early phase of insulin resistance, metabolic syndrome, and type 2 diabetes mellitus. The objective of this study was to elucidate the relationship between RBP4, TTR, triglyceride (TG) and type 2 diabetes risk in rural Thailand. METHODS: We measured the serum RBP4, TTR, glucose, triglyceride and insulin levels, and glucose tolerance of 167 volunteers from Sung Noen District, Nakhon Ratchasima Province, Thailand...
May 10, 2018: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/29745794/visceral-adipose-tissue-tracks-more-closely-with-metabolic-dysfunction-than-intrahepatic-triglyceride-in-non-diabetic-lean-asians
#20
Cherlyn Ding, Zhiling Chan, Yu Chung Chooi, John Choo, Suresh Anand Sadananthan, Navin Michael, S Sendhil Velan, Melvin Khee-Shing Leow, Faidon Magkos
BACKGROUND: Increased visceral adipose tissue (VAT) and intrahepatic triglyceride (IHTG) are important risk factors for the development of type 2 diabetes in obese subjects. The relative contribution of these ectopic fat depots to cardiometabolic risk differs between populations, depends on the degree of obesity and the level of cardiorespiratory fitness, and is difficult to dissect because VAT and IHTG typically co-vary. The aim of this study was to evaluate the effect of an isolated increase in VAT or IHTG on insulin sensitivity and insulin secretion in apparently healthy normal-weight Asian subjects...
May 10, 2018: Journal of Applied Physiology
keyword
keyword
14136
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"