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https://www.readbyqxmd.com/read/29332333/epigallocatechin-gallate-from-green-tea-exhibits-potent-anticancer-effects-in-a-549-non-small-lung-cancer-cells-by-inducing-apoptosis-cell-cycle-arrest-and-inhibition-of-cell-migration
#1
Jie Huang, Shi Chen, Yi Shi, Cheng-Hong Li, Xiao-Jiang Wang, Fa-Jiu Li, Chuan-Hai Wang, Qing-Hua Meng, Jin-Nan Zhong, Min Liu, Zi-Ming Wang
PURPOSE: Green tea (Camellia sinensis) is considered as a rich source of epigallocatechin gallate (EGCG) which has been shown to exert impressive pharmacological properties. The anticancer properties of EGCG have been extensively studied however, its anticancer activity has not been explored in lung cancer. The present study was therefore designed to evaluate the anticancer effects of EGCG against non-small cell lung cancer (NSCLC) cell line A-549 and normal human fibroblast FR-2 cells...
November 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29331337/elastin-in-lung-development-and-disease-pathogenesis
#2
REVIEW
Robert P Mecham
Elastin is expressed in most tissues that require elastic recoil. The protein first appeared coincident with the closed circulatory system, and was critical for the evolutionary success of the vertebrate lineage. Elastin is expressed by multiple cell types in the lung, including mesothelial cells in the pleura, smooth muscle cells in airways and blood vessels, endothelial cells, and interstitial fibroblasts. This highly crosslinked protein associates with fibrillin-containing microfibrils to form the elastic fiber, which is the physiological structure that functions in the extracellular matrix...
January 10, 2018: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29330055/tissue-geometry-may-govern-lung-branching-mode-selection
#3
Uduak Z George, Sharon R Lubkin
Lung branching morphogenesis proceeds in three stereotyped modes (domain, planar, and orthogonal branching). Much is known about the molecular players, including growth factors such as fibroblast growth factor 10 but it is unknown how these signals could actuate the different branching patterns. With the aim of identifying mechanisms that may determine the different branching modes, we developed a computational model of the epithelial lung bud and its surrounding mesenchyme. We studied transport of morphogens and localization of morphogen flux at lobe surfaces and lobe edges...
January 9, 2018: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/29329019/salidroside-influences-the-cellular-cross-talk-of-human-fetal-lung-diploid-fibroblasts-a-proteomic-approach
#4
Wenmin Xing, Wenyan Gao, Huili Su, Sanying Wang, Jing Zhang, Genxiang Mao, Jing Yan
Senescence is a complex multiple factor proces, which is still poorly understood. The purpose of this study was to find the proteome of cultured human fetal lung diploid fibroblasts (2BS) of different population doubling (PD), as well as the altered proteome induced by salidroside (SAL) in 2BS cells. Proteins were identified by two-dimensional electrophoresis (2-DE) combining matrix-assisted laser desorption/ionization-time and flight mass spectrometry (MAL DI-TOF/MS). As a result, we found 16 proteins with two-fold variations in senescent cells or after SAL treatment, some being reduced such as reticulocalbin-1, heat shock protein beta-6, elongation factor 1-delta, F-actin-capping protein subunit alpha-1, and chloride intracellular channel 1...
January 5, 2018: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/29328434/chemical-conversion-of-human-lung-fibroblasts-into-neuronal-cells
#5
Xiao-Yu Wan, Li-Yun Xu, Bing Li, Qiu-Hong Sun, Qiu-Liang Ji, Dong-Dong Huang, Lan Zhao, Yong-Tao Xiao
It has been previously reported that human embryonic fibroblasts and mouse embryonic fibroblasts can be converted into neuronal cells using chemical agents, along with forced expression specific transcriptional factors. However, the materials required for reprogramming in these approaches presents major technical difficulties and safety concerns. The current study investigated whether a cocktail of small molecules can convert human lung fibroblast cells into neurons. The small molecules valproic acid, CHIR99021, DMH1, Repsox, forskolin, Y‑27632 and SP600125 (VCHRFYS) were used to induce MRC‑5 cells into neuronal cells in vitro...
January 10, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29326439/lung-fibroblasts-promote-metastatic-colonization-through-upregulation-of-stearoyl-coa-desaturase-1-in-tumor-cells
#6
Guanghua Liu, Shi Feng, Lin Jia, Chunying Wang, Yan Fu, Yongzhang Luo
As a rate-limiting step in metastasis, metastatic colonization requires survival signals from supportive stroma. However, the mechanisms driving this process are incompletely understood. Here, we showed that the proliferation of B16F10 cells was promoted when cocultured with lung fibroblasts. Meanwhile, co-injection of B16F10 tumor cells with mouse lung fibroblasts significantly increased lung metastasis. Based on GEO database, we identified stearoyl-CoA desaturase 1 (SCD1) as a novel factor promoting metastatic colonization...
January 12, 2018: Oncogene
https://www.readbyqxmd.com/read/29325680/clinico-radio-pathological-characteristics-of-unclassifiable-idiopathic-interstitial-pneumonias
#7
Yasuhiko Nakamura, Keishi Sugino, Masashi Kitani, Akira Hebisawa, Naobumi Tochigi, Sakae Homma
BACKGROUND: The purpose of this study was to clarify the clinico-radio-pathological characteristics and prognostic factors of unclassifiable-idiopathic interstitial pneumonias (U-IIPs) diagnosed by surgical lung biopsy. METHODS: Among 86 patients with interstitial pneumonia who underwent surgical lung biopsy from January 2005 to September 2013, 33 (38.4%; 16 male patients; mean age, 64.4 ± 8.8 years) were diagnosed with U-IIPs. They were subsequently categorized into rapidly progressive (n = 7), slowly progressive (n = 7), and stable (n = 19) groups based on the decrease of the percent predicted forced vital capacity or percent predicted diffusing capacity of the lung carbon monoxide and the occurrence of acute exacerbation...
January 2018: Respiratory Investigation
https://www.readbyqxmd.com/read/29325547/paracrine-and-epigenetic-control-of-caf-induced-metastasis-the-role-of-hotair-stimulated-by-tgf-%C3%A3-1-secretion
#8
Yu Ren, Huan-Huan Jia, Yi-Qi Xu, Xuan Zhou, Xiao-Hui Zhao, Yun-Fei Wang, Xin Song, Zhi-Yan Zhu, Ting Sun, Yan Dou, Wei-Ping Tian, Xiu-Lan Zhao, Chun-Sheng Kang, Mei Mei
BACKGROUND: The communication between carcinoma associated fibroblasts (CAFs) and cancer cells facilitate tumor metastasis. In this study, we further underlying the epigenetic mechanisms of CAFs feed the cancer cells and the molecular mediators involved in these processes. METHODS: MCF-7 and MDA-MB-231 cells were treated with CAFs culture conditioned medium, respectively. Cytokine antibody array, enzyme-linked immunosorbent assay, western blotting and immunofluorescence were used to identify the key chemokines...
January 11, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/29325453/age-related-lung-tissue-remodeling-due-to-the-local-distribution-of-mmp-2-timp-2-tgf-%C3%AE-and-hsp70
#9
Z Vitenberga, M Pilmane
Lung tissue remodeling requires complex interactions of matrix metalloproteinases (MMPs), tissue inhibitors of metalloproteinases (TIMPs), transforming growth factor (TGF) family and heat shock protein 70 (Hsp70). We evaluated the appearance and distribution of MMP-2, TIMP-2, TGF-β1 and Hsp70 in lung tissue using immunohistochemistry. Stained structures were graded semiquantitatively. Overall, more MMP-2, TIMP-2, TGF-β1 and Hsp70 were observed in bronchial cartilage, bronchial and alveola repithelium, and among alveolar macrophages...
January 12, 2018: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/29321510/a-model-of-human-lung-fibrogenesis-for-the-assessment-of-anti-fibrotic-strategies-in-idiopathic-pulmonary-fibrosis
#10
Katy M Roach, Amanda Sutcliffe, Laura Matthews, Gill Elliott, Chris Newby, Yassine Amrani, Peter Bradding
Idiopathic pulmonary fibrosis (IPF) is a progressive interstitial lung disease with limited therapeutic options. KCa3.1 ion channels play a critical role in TGFβ1-dependent pro-fibrotic responses in human lung myofibroblasts. We aimed to develop a human lung parenchymal model of fibrogenesis and test the efficacy of the selective KCa3.1 blocker senicapoc. 2 mm3 pieces of human lung parenchyma were cultured for 7 days in DMEM ± TGFβ1 (10 ng/ml) and pro-fibrotic pathways examined by RT-PCR, immunohistochemistry and collagen secretion...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29319845/il-37-inhibits-il-4-il-13-induced-ccl11-production-and-lung-eosinophilia-in-murine-allergic-asthma
#11
Jiaoyan Lv, Yingluo Xiong, Wenjing Li, Xinyi Cui, Xunjia Cheng, Qibin Leng, Rui He
BACKGROUND: IL-37 is emerging as an anti-inflammatory cytokine, particularly in innate inflammation. However, the role of IL-37 in Th2-mediated allergic lung inflammation remains uncertain. We sought to determine the role and the underlying mechanisms of IL-37 in the development of house dust mites (HDM)-induced murine asthma model. METHODS: We examined the effect of IL-37 administration during the sensitization or challenge phase on Th2-mediated allergic asthma induced by inhaled HDM...
January 10, 2018: Allergy
https://www.readbyqxmd.com/read/29317818/antibacterial-mechanisms-of-a-novel-type-picosecond-laser-generated-silver-titanium-nanoparticles-and-their-toxicity-to-human-cells
#12
Peri Korshed, Lin Li, Zhu Liu, Aleksandr Mironov, Tao Wang
In this study, we explored the antibacterial mechanisms for a novel type of Ag-TiO2 compound nanoparticles (NPs) produced from an Ag-TiO2 alloy using a picosecond laser and evaluated the toxicity of the Ag-TiO2 NPs to a range of human cell types. Transmission electron microscopy was used to determine the morphology, shapes, and size distribution of the laser-generated Ag-TiO2 NPs. UV-visible spectrometer was used to confirm the shift of light absorbance of the NPs toward visible light wavelength. Results showed that the laser-generated Ag-TiO2 NPs had significant antibacterial activities against both Gram-negative and Gram-positive bacterial strains, including Escherichia coli, Pseudomonas aeruginosa, and the methicillin-resistant Staphylococcus aureus...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29316328/anti-fibrotic-effects-of-pirfenidone-by-interference-with-the-hedgehog-signalling-pathway-in-patients-with-systemic-sclerosis-associated-interstitial-lung-disease
#13
Hua Xiao, Guang-Feng Zhang, Xiang-Ping Liao, Xiao-Jie Li, Jian Zhang, Haobo Lin, Zhe Chen, Xiao Zhang
AIM: To determine whether pirfenidone attenuates lung fibrosis by interfering with the hedgehog (Hh) signalling pathway in patients with systemic sclerosis-associated interstitial lung disease (SSc-ILD). METHODS: Twenty-five SSc-ILD patients (20 first visit, five who underwent pirfenidone treatment for 6 months) and 10 healthy controls were recruited. Lung tissues were obtained by open-chest surgery, and primary lung fibroblasts were isolated, cultured and stimulated with pirfenidone...
January 7, 2018: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29315794/overexpression-of-long-non-coding-rna-h19-protects-lung-fibroblasts-from-lps-induced-injury-by-targeting-mir-181a-and-runx2-via-activation-of-notch-and-jnk-pathways
#14
Lin Wu, Liping Sun, Yongqiang Hua, Chunyang Yang, Yu Teng
BACKGROUND: Acute lung injury is a life-threatening inflammatory lung condition. Studies have explored the role of lncRNA H19 in several diseases, including cancers. In this study, We aimed to explore the role of H19 in lipopolysaccharide (LPS)-induced lung injury and to elucidate the underlying molecular mechanism. METHODS: MRC-5 cells (lung fibroblast cells) were used in the experiment. Cell viability, proliferation, and apoptosis were measured by specific assays...
January 8, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29310782/the-biochemistry-and-immunohistochemistry-of-versican
#15
Stephen P Evanko, Christina K Chan, Pamela Y Johnson, Charles W Frevert, Thomas N Wight
Versican is a chondroitin sulfate proteoglycan found in the extracellular matrix that is important for changes in cell phenotype associated with development and disease. Versican has been shown to be involved in cardiovascular disorders, as well as lung disease and fibrosis, inflammatory bowel disease, cancer, and several other diseases that have an inflammatory component. Versican was first identified as a fibroblast proteoglycan and forms large multimolecular complexes with hyaluronan and other components of the provisional matrix during wound healing and inflammation...
2018: Methods in Cell Biology
https://www.readbyqxmd.com/read/29304760/regulation-of-pancreatic-stellate-cell-activation-by-notch3
#16
Haiyan Song, Yuxiang Zhang
BACKGROUND: Activated pancreatic stellate cells (PaSCs) are the key cellular source of cancer-associated fibroblasts in the pancreatic stroma of patients with pancreatic ductal adenocarcinoma (PDAC), however, the activation mechanism of PaSCs is not yet known. The Notch signaling pathway, components of which are expressed in stromal cells, is involved in the fibrosis of several organs, including the lung and liver. In the current study, we investigated whether Notch signal transduction is involved in PaSC activation in PDAC...
January 5, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29303970/cytotoxic-effects-and-anti-angiogenesis-potential-of-pistachio-pistacia-vera-l-hulls-against-mcf-7-human-breast-cancer-cells
#17
Maryam Seifaddinipour, Reyhaneh Farghadani, Farideh Namvar, Jamaludin Mohamad, Habsah Abdul Kadir
Pistachio (Pistacia vera L.) hulls (PVLH) represents a significant by-product of industrial pistachio processing that contains high amounta of phenolic and flavonoid compounds known to act as antioxidants. The current study was designed to evaluate the anti-tumor and anti-angiogenic potentials of PVLH extracts. The cytotoxic effects of hexane, ethyl acetate, methanol, and water PVLH extracts toward human colon cancer (HT-29 and HCT-116), breast adenocarcinoma (MCF-7), lung adenocarcinoma (H23), liver hepatocellular carcinoma (HepG2), cervical cancer (Ca Ski), and normal fibroblast (BJ-5ta) cells were assessed using a MTT cell viability assay...
January 5, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29297621/amnion-epithelial-cell-derived-exosomes-restrict-lung-injury-and-enhance-endogenous-lung-repair
#18
Jean L Tan, Sin N Lau, Bryan Leaw, Hong P T Nguyen, Lois A Salamonsen, Mohamed I Saad, Siow T Chan, Dandan Zhu, Mirja Krause, Carla Kim, William Sievert, Euan M Wallace, Rebecca Lim
Idiopathic pulmonary fibrosis (IPF) is characterized by chronic inflammation, severe scarring, and stem cell senescence. Stem cell-based therapies modulate inflammatory and fibrogenic pathways by release of soluble factors. Stem cell-derived extracellular vesicles should be explored as a potential therapy for IPF. Human amnion epithelial cell-derived exosomes (hAEC Exo) were isolated and compared against human lung fibroblasts exosomes. hAEC Exo were assessed as a potential therapy for lung fibrosis. Exosomes were isolated and evaluated for their protein and miRNA cargo...
January 3, 2018: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29290980/up-regulation-of-5-lipoxygenase-by-inhibition-of-cathepsin-g-enhances-trail-induced-apoptosis-through-down-regulation-of-survivin
#19
Seon Min Woo, Kyoung-Jin Min, Seung Un Seo, Shin Kim, Jong-Wook Park, Dae Kyu Song, Hyun-Shik Lee, Sang Hyun Kim, Taeg Kyu Kwon
Cathepsin G is a serine protease secreted from activated neutrophils, it has important roles in inflammation and immune response. Moreover, cathepsin G promotes tumor cell-cell adhesion and migration in cancer cells. In this study, we investigated whether inhibition of cathepsin G could sensitize TRAIL-mediated apoptosis in cancer cells. An inhibitor of cathepsin G [Cathepsin G inhibitor I (Cat GI); CAS 429676-93-7] markedly induced TRAIL-mediated apoptosis in human renal carcinoma (Caki, ACHN, and A498), lung cancer (A549) and cervical cancer (Hela) cells...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29290828/circrna-mediates-silica-induced-macrophage-activation-via-hectd1-zc3h12a-dependent-ubiquitination
#20
Zewei Zhou, Rong Jiang, Xiyue Yang, Huifang Guo, Shencun Fang, Yingming Zhang, Yusi Cheng, Jing Wang, Honghong Yao, Jie Chao
Rationale: Phagocytosis of silicon dioxide (SiO2) into lung cells causes an inflammatory cascade that results in fibroblast proliferation and migration, followed by fibrosis. Circular RNAs (circRNAs) are a subclass of non-coding RNAs detected within mammalian cells; however, researchers have not determined whether circRNAs are involved in the pathophysiological process of silicosis. The upstream molecular mechanisms and functional effects on cell apoptosis, proliferation and migration were investigated to elucidate the role of circRNAs in SiO2-induced inflammation in pulmonary macrophages...
2018: Theranostics
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