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https://www.readbyqxmd.com/read/29791904/the-cgas-sting-pathway-is-important-for-dendritic-cell-activation-but-is-not-essential-to-induce-protective-immunity-against-mycobacterium-tuberculosis-infection
#1
Fabio V Marinho, Sulayman Benmerzoug, Stephanie Rose, Priscila C Campos, João T Marques, André Báfica, Glen Barber, Bernhard Ryffel, Sergio C Oliveira, Valerie F J Quesniaux
Mycobacterium tuberculosis (Mtb) infection remains a major public health concern. The STING (stimulator of interferon genes) pathway contributes to the cytosolic surveillance of host cells. Most studies on the role of STING activation in Mtb infection have focused on macrophages. Moreover, a detailed investigation of the role of STING during Mtb infection in vivo is required. Here, we deciphered the involvement of STING in the activation of dendritic cells (DCs) and the host response to Mtb infection in vivo...
May 23, 2018: Journal of Innate Immunity
https://www.readbyqxmd.com/read/29791759/ctnnal1-inhibits-ozone-induced-epithelial-mesenchymal-transition-in-human-bronchial-epithelial-cells
#2
Meiling Tan, Caixia Liu, Wenjie Huang, Linhong Deng, Xiaoqun Qin, Yang Xiang
NEW FINDINGS: What is the central question of this study? In our previous work, CTNNAL1 (catenin alpha-like 1), an asthma-related epithelial adhesion molecule, was found to play a vital role in airway epithelial wound repair. The effect of CTNNAL1 on airway EMT has not been previously explored. What is the main finding and its importance? CTNNAL1 inhibits ozone-induced airway EMT features and mediated by repressing the expression of Twist1 mRNA and reducing TGF-β1 levels. These findings contribute to our understanding of the pathology of airway EMT and may indicate a possible therapeutic target for airway remodelling in bronchial asthma...
May 23, 2018: Experimental Physiology
https://www.readbyqxmd.com/read/29789556/foxm1-dependent-rad51-and-brca2-signaling-protects-idiopathic-pulmonary-fibrosis-fibroblasts-from-radiation-induced-cell-death
#3
Jintaek Im, Jessica Lawrence, Davis Seelig, Richard S Nho
Radiation therapy is critical for the control of many tumors and lung is an important dose-limiting organ that impacts radiation dose prescribed to avoid irreversible pulmonary fibrosis in cancer survivors. Idiopathic pulmonary fibrosis (IPF) is a chronic, irreversible lung disease caused by aberrantly activated lung (myo)fibroblasts. The presence of pro-fibrotic, apoptosis-resistant fibroblasts in IPF promotes progressive fibrosis and may have a role in other diseases, if these resistant cells are selected for as a consequence of treatment...
May 22, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29782226/microparticle-release-from-cell-lines-and-its-anti-influenza-activity
#4
Saharat Jantaratrirat, Chompunuch Boonarkart, Kanyarat Ruangrung, Ornpreya Suptawiwat, Prasert Auewarakul
Microparticles (MPs) are vesicles that are released by budding from plasma membrane of living cells. Recently, the role of MPs in antiviral activity has been proposed. We investigated quantity and anti-influenza activity of MPs from human alveolar epithelial cells A549, human bronchial epithelial cells BEAS-2B, human colon adenocarcinoma cells HT-29, and the human lung fibroblast cells MRC-5. MPs were found from all four cell lines. However, anti-influenza activity against an H1N1 influenza virus was found only from MPs of A549 and BEAS-2B...
May 21, 2018: Viral Immunology
https://www.readbyqxmd.com/read/29777878/pulmonary-delivery-of-polyplexes-for-combined-pai-1-gene-silencing-and-cxcr4-inhibition-to-treat-lung-fibrosis
#5
B S Ling Ding, B S Chenfei Zhu, M S Fei Yu, M S Pengkai Wu, M S Gang Chen, B S Aftab Ullah, Kaikai Wang, Minjie Sun, Jing Li, David Oupický
This report describes the development of polyplexes based on CXCR4-inhibiting poly(ethylenimine) derivative (PEI-C) for pulmonary delivery of siRNA to silence plasminogen activator inhibitor-1 (siPAI-1) as a new combination treatment of pulmonary fibrosis (PF). Safety and delivery efficacy of the PEI-C/siPAI-1 polyplexes was investigated in vitro in primary lung fibroblasts isolated from mice with bleomycin-induced PF. Biodistribution analysis following intratracheal administration of fluorescently labeled polyplexes showed prolonged retention in the lungs...
May 16, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29777389/iron-based-metal-organic-frameworks-as-a-theranostic-carrier-for-local-tuberculosis-therapy
#6
Gabriela Wyszogrodzka, Przemysław Dorożyński, Barbara Gil, Wieslaw J Roth, Maciej Strzempek, Bartosz Marszałek, Władysław P Węglarz, Elżbieta Menaszek, Weronika Strzempek, Piotr Kulinowski
PURPOSE: The purpose of the study was initial evaluation of applicability of metal organic framework (MOF) Fe-MIL-101-NH2 as a theranostic carrier of antituberculous drug in terms of its functionality, i.e. drug loading, drug dissolution, magnetic resonance imaging (MRI) contrast and cytotoxic safety. METHODS: Fe-MIL-101-NH2 was characterized using X-ray powder diffraction, FTIR spectrometry and scanning electron microscopy. The particle size analysis was determined using laser diffraction...
May 18, 2018: Pharmaceutical Research
https://www.readbyqxmd.com/read/29777109/tak1-mediates-microenvironment-triggered-autocrine-signals-and-promotes-triple-negative-breast-cancer-lung-metastasis
#7
Oihana Iriondo, Yarong Liu, Grace Lee, Mostafa Elhodaky, Christian Jimenez, Lin Li, Julie Lang, Pin Wang, Min Yu
Triple-negative breast cancer (TNBC) is a highly metastatic subtype of breast cancer that has limited therapeutic options. Thus, developing novel treatments for metastatic TNBC is an urgent need. Here, we show that nanoparticle-mediated delivery of transforming growth factor-β1-activated kinase-1 (TAK1) inhibitor 5Z-7-Oxozeaenol can inhibit TNBC lung metastasis in most animals tested. P38 is a central signal downstream of TAK1 in TNBC cells in TAK1-mediated response to multiple cytokines. Following co-culturing with macrophages or fibroblasts, TNBC cells express interleukin-1 (IL1) or tumor necrosis factor-α (TNFα), respectively...
May 18, 2018: Nature Communications
https://www.readbyqxmd.com/read/29774214/the-expression-of-aqp1-is-modified-in-lung-of-patients-with-idiopathic-pulmonary-fibrosis-addressing-a-possible-new-target
#8
Ana Galán-Cobo, Elena Arellano-Orden, Rocío Sánchez Silva, José Luis López-Campos, César Gutiérrez Rivera, Lourdes Gómez Izquierdo, Nela Suárez-Luna, María Molina-Molina, José A Rodríguez Portal, Miriam Echevarría
Activation of the epithelial-mesenchymal transition process (EMT) by which alveolar cells in human lung tissue undergo differentiation giving rise to a mesenchymal phenotype (fibroblast/miofibroblasts) has been well recognized as a key element in the origin of idiopathic pulmonary fibrosis (IPF). Here we analyzed expression of AQP1 in lung biopsies of patients diagnosed with IPF, and compared it to biopsies derived from patients with diverse lung pneumonies, such as hypersensitivity pneumonitis, sarcoidosis or normal lungs...
2018: Frontiers in Molecular Biosciences
https://www.readbyqxmd.com/read/29773095/the-role-of-fibrocyte-in-the-pathogenesis-of-silicosis
#9
Juan Li, Wu Yao, Jian Yong Hou, Lin Zhang, Lei Bao, Hui Ting Chen, Di Wang, Zhong Zheng Yue, Yi Ping Li, Miao Zhang, Xing Hao Yu, Jian Hui Zhang, Ya Qian Qu, Chang Fu Hao
Exposure to free silica induces silicosis and myofibroblasts are regarded as primary effector cells. Fibrocytes can differentiate into myofibroblast. Therefore, the present study was designed to investigate whether fibrocytes participate in silicosis. The rat model of silicosis was established. Hematoxylin-eosin stainings and Masson stainings were used to evaluate the histopathology and collagen deposition. Flow cytometry and immunofluorescence were performed to detect the number of fibrocytes and their contribution to myofibroblasts...
April 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29772675/silencing-stem-cell-factor-gene-in-fibroblasts-to-regulate-paracrine-factor-productions-and-enhance-c-kit-expression-in-melanocytes-on-melanogenesis
#10
Pin-Hui Li, Li-Heng Liu, Cheng-Chung Chang, Rong Gao, Chung-Hang Leung, Dik-Lung Ma, Hui-Min David Wang
Melanogenesis is a complex physiological mechanism involving various paracrine factors. Skin cells such as keratinocytes, fibroblasts, and melanocytes communicate with one another through secreted regulators, thereby regulating the melanocytes' bio-functions. The stem cell factor (SCF) is a paracrine factor produced by fibroblasts, and its receptor, c-kit, is expressed on melanocytes. Binding of SCF to c-kit activates autophosphorylation and tyrosine kinase to switch on its signal transmission. SCF inhibition does not suppress fibroblast proliferation in MTT assay, and SCF silencing induced mRNA expressions of paracrine factor genes, HGF , NRG-1 , and CRH in qPCR results...
May 16, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29771006/the-anti-fibrotic-effect-of-adenosine-a2b-receptor-antagonism-in-a-mouse-model-of-dermal-fibrosis
#11
Harry Karmouty-Quintana, Jose G Molina, Kemly Philip, Chiara Bellocchi, Brent Gudenkauf, Minghua Wu, Ning-Yuan Chen, Scott D Collum, Junsuk Ko, Sandeep K Agarwal, Shervin Assassi, Hongyan Zhong, Michael R Blackburn, Tingting Weng
OBJECTIVE: Systemic sclerosis (SSc - scleroderma) is a chronic disease that affects the skin and various internal organs. Dermal fibrosis is a major component of this disease. The mechanisms that promote dermal fibrosis remain elusive. Elevations in tissue adenosine levels and the subsequent engagement of the pro-fibrotic A2B adenosine receptor (ADORA2B) have been shown to regulate fibrosis in multiple organs including the lung, kidney and penis; however, the role of the ADORA2B in dermal fibrosis has not been investigated...
May 17, 2018: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29764866/lrrc15-is-a-novel-mesenchymal-protein-and-stromal-target-for-antibody-drug-conjugates
#12
James W Purcell, Sonia G Tanlimco, Jonathan A Hickson, Melvin Fox, Mien Sho, Lisa Durkin, Tamar Uziel, Rick Powers, Kelly D Foster-Duke, Thomas McGonigal, Subashri Kumar, Josue Samayoa, Dong Zhang, Joann P Palma, Sasmita Mishra, Diane Hollenbaugh, Kurt Gish, Susan E Morgan-Lappe, Eric D Hsi, Debra T Chao
Progress in understanding tumor stromal biology has been constrained in part because cancer-associated fibroblasts (CAF) are a heterogeneous population with limited cell type-specific protein markers. Using RNA expression profiling, we identified the membrane protein leucine rich repeat containing 15 (LRRC15) as highly expressed in multiple solid tumor indications with limited normal tissue expression. LRRC15 was expressed on stromal fibroblasts in many solid tumors (e.g., breast, head and neck, lung, pancreatic) as well as directly on a subset of cancer cells of mesenchymal origin (e...
May 15, 2018: Cancer Research
https://www.readbyqxmd.com/read/29764596/-a-case-report-of-advanced-lung-adenocarcinoma-harboring-kras-mutation-treated-with-anlotinib
#13
Yudong Su, Zhaoting Meng, Xiaoyan Xu, XinYue Wang, Ran Zuo, Yunxia Hou, Kai Li, Peng Chen
In recent years, the number of advanced non-small cell lung cancer (NSCLC) patients has gradually increased, and the treatment methods have also been significantly increased. However, there are no standard treatment plans at home and abroad for third-line and above patients who are refractory to targeted therapy epidermal growth factor receptor (EGFR)/anaplastic lymphoma kinase (ALK) or chemotherapy. The clinical treatment effect is also not satisfactory. Anlotinib is a novel TKI targeting the vascular endothelial growth factor receptor (VEGFR), fibroblast growth factor receptor (FGFR), platelet-derived growth factor receptor (PDGFR) and c-Kit...
May 20, 2018: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/29764588/-correlations-between-ape1-ref-1-icam-1-and-il-17a-levels-in-serum-and-radiation-pneumonitis-for-local-advanced-non-small-cell-lung-cancer-patients
#14
Leiming Guo, Gaofeng Ding, Wencai Xu, Hong Ge, Yue Jiang, Yufei Lu
BACKGROUND: The main manifestations of radiation pneumonitis are injury of alveolar epithelial and endothelial cells, abnormal expression of cytokines, abnormal proliferation of fibroblasts and synthesis of fibrous matrix. The occurrence of radiation pneumonitis is associated with multiplecytokine level abnormality. These cytokines can also be used as bio-markers to predict the occurrence of radiation pneumonitis. This study was to evaluate the correlation between the change of apurinic/apyrimidinic endonuclease 1/redox factor-1 (Ape1/Ref-1), intercellular adhesion molecules 1 (ICAM-1) and interleukin-17A (IL-17A) before and after radiotherapy and radiation pneumonitis for local advanced non-small cell lung cancer (NSCLC) patients with concurrent chemoradiotherapy...
May 20, 2018: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/29764586/-relationship-between-fgfr1-gene-regulation-of-circulating-tumor-cells-and-clinical-features-of-non-small-cell-lung-cancer
#15
Lei Liu, Cheng Huang, Li Li, Naixin Liang, Shanqing Li
BACKGROUND: The methods of detection for recurrence and metastasis in patients with non-small cell lung cancer (NSCLC) have hysteresis and one-sidedness. This study summarizes the relationship between the circulating tumor cell (CTC) in peripheral blood, expression of fibroblast growth factor receptor 1 (FGFR1) and clinic pathological features in 30 patients with NSCLC so as to provide new ideas for the detection of tumor recurrence and metastasis. METHODS: To analyze the clinical data and CTC detection data of 30 cases of NSCLC in Department of Thoracic Surgery, Peking Union Medical College Hospital from November 2016 to June 2017...
May 20, 2018: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/29763548/zein-increases-the-cytoaffinity-and-biodegradability-of-scaffolds-3d-printed-with-zein-and-poly-%C3%AE%C2%B5-caprolactone-composite-ink
#16
Linzhi Jing, Xiang Wang, Hang Liu, Yuyun Lu, Jinsong Bian, Jie Sun, Dejian Huang
Electrohydrodynamic printing (EHDP) has attracted extensive interests as a powerful technology to fabricate micro to nanoscale fibrous scaffolds in a custom-tailored manner for biomedical applications. A few synthetic biopolymer inks are applicable to this EHDP technology, but the fabricated scaffolds suffered from low mechanical strength, biocompatibility and biodegradability. In this study, a series of poly(ε-caprolactone)(PCL)/zein composite inks were developed and their printability was examined on a solution-based EHDP system for scaffold fabrication...
May 15, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29760942/induction-of-chondrogenesis-of-human-placenta-derived-mesenchymal-stem-cells-via-heparin-grafted-human-fibroblast-derived-matrix
#17
Yong Kwan Noh, Ping Du, Avelino Dos Santos Da Costa, Kwideok Park
Background: Formation of mature and functional articular cartilage is still challenging in cartilage tissue engineering. This study investigates the potential of using heparin-grafted decellularized extracellular matrix (ECM) as a novel growth factor delivery platform towards human placenta-derived mesenchymal stem cells (hPMSCs) chondrogenic differentiation. Human fibroblast-derived extracellular matrix (hFDM) is naturally obtained from in vitro-cultured human lung fibroblasts via a mild decellularization process...
2018: Biomaterials Research
https://www.readbyqxmd.com/read/29760045/gfpt2-expressing-cancer-associated-fibroblasts-mediate-metabolic-reprogramming-in-human-lung-adenocarcinoma
#18
Weiruo Zhang, Gina Bouchard, Alice Yu, Majid Shafiq, Mehran Jamali, Joseph B Shrager, Kelsey Ayers, Shaimaa Bakr, Andrew J Gentles, Maximilian Diehn, Andrew Quon, Robert B West, Viswam Nair, Matt van de Rijn, Sandy Napel, Sylvia K Plevritis
Metabolic reprogramming of the tumor microenvironment is recognized as a cancer hallmark. To identify new molecular processes associated with tumor metabolism, we analyzed the transcriptome of bulk and flow-sorted human primary non-small cell lung cancer (NSCLC) together with 18FDG-positron emission tomography scans, which provide a clinical measure of glucose uptake. Tumors with higher glucose uptake were functionally enriched for molecular processes associated with invasion in adenocarcinoma (AD) and cell growth in squamous cell carcinoma (SCC)...
May 14, 2018: Cancer Research
https://www.readbyqxmd.com/read/29759639/uniparental-disomy-unveils-a-novel-recessive-mutation-in-pomt2
#19
Brianna N Brun, Tobias Willer, Benjamin W Darbro, Hernan D Gonorazky, Sergey Naumenko, James J Dowling, Kevin P Campbell, Steven A Moore, Katherine D Mathews
Mutations in POMT2 are most commonly associated with Walker-Warburg syndrome and Muscle-Eye-Brain disease, but can also cause limb girdle muscular dystrophy (LGMD2N). We report a case of LGMD due to a novel mutation in POMT2 unmasked by uniparental isodisomy. The patient experienced proximal muscle weakness from three years of age with minimal progression. She developed progressive contractures and underwent unilateral Achilles tenotomy. By age 11, she had borderline low left ventricular ejection fraction and mild restrictive lung disease...
April 10, 2018: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/29758070/rapamycin-independent-igf2-expression-in-tsc2-null-mouse-embryo-fibroblasts-and-human-lymphangioleiomyomatosis-cells
#20
Blanca E Himes, Kseniya Obraztsova, Lurong Lian, Maya Shumyatcher, Ryan Rue, Elena N Atochina-Vasserman, Stella K Hur, Marisa S Bartolomei, Jilly F Evans, Vera P Krymskaya
Lymphangioleiomyomatosis (LAM) is a rare, almost exclusively female lung disease linked to inactivating mutations in tuberous sclerosis complex 2 (TSC2), a tumor suppressor gene that controls cell metabolic state and growth via regulation of the mechanistic target of rapamycin (mTORC1) signaling. mTORC1 is frequently activated in human cancers and, although the mTORC1 inhibitor rapamycin has a cytostatic effect, it is, in general, unable to elicit a robust curative effect or tumor regression. Using RNA-Seq, we identified (1) Insulin-like Growth Factor (IGF2) as one of the genes with the highest fold-change difference between human TSC2-null and TSC2-expressing angiomyolipoma cells from a patient with LAM, and (2) the mouse IGF2 homolog Igf2, as a top-ranking gene according to fold change between Tsc2-/- and Tsc2+/+ mouse embryo fibroblasts (MEFs)...
2018: PloS One
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