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https://www.readbyqxmd.com/read/29126429/rna-sequencing-analysis-of-lung-primary-fibroblast-response-to-eosinophil-degranulation-products-predicts-downstream-effects-on-inflammation-tissue-remodeling-and-lipid-metabolism
#1
Stephane Esnault, Ksenija Bernau, Elizabeth E Torr, Yury A Bochkov, Nizar N Jarjour, Nathan Sandbo
BACKGROUND: The association of eosinophils with inflammation and tissue remodeling is at least partially due to their release of toxic granule proteins and other mediators, including cytokines. Tissue remodeling and consequent functional defects are affected by activity of connective tissue fibroblasts. Exaggerated fibroblast activation, accumulation and change of phenotype may lead to fibrosis and loss of tissue function. So far, little information has been reported on how eosinophils affect inflammation and tissue remodeling via the activation of fibroblasts...
November 10, 2017: Respiratory Research
https://www.readbyqxmd.com/read/29077781/a-gene-signature-to-predict-high-tumour-infiltrating-lymphocytes-after-neoadjuvant-chemotherapy-and-outcome-in-patients-with-triple-negative-breast-cancer
#2
C Criscitiello, M A Bayar, G Curigliano, F W Symmans, C Desmedt, H Bonnefoi, B Sinn, G Pruneri, C Vicier, J Y Pierga, C Denkert, S Loibl, C Sotiriou, S Michiels, F André
INTRODUCTION: In patients with triple-negative breast cancer (TNBC), the extent of tumor-infiltrating lymphocytes (TILs) in the residual disease (RD) after neoadjuvant chemotherapy (NACT) is associated with better prognosis. Our objective was to develop a gene signature from pre-treatment samples to predict the extent of TILs after NACT, and then to test its prognostic value on survival. PATIENTS AND METHODS: Using 99 pre-treatment samples, we generated a four-gene signature associated with high post-NACT TILs...
October 25, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29075151/sporadic-pcdh18-somatic-mutations-in-epcam-positive-hepatocellular-carcinoma
#3
Takehiro Hayashi, Taro Yamashita, Hikari Okada, Kouki Nio, Yasumasa Hara, Yoshimoto Nomura, Tomoyuki Hayashi, Yoshiro Asahina, Mariko Yoshida, Naoki Oishi, Hajime Sunagozaka, Hajime Takatori, Masao Honda, Shuichi Kaneko
BACKGROUND: The relationship between specific genome alterations and hepatocellular carcinoma (HCC) cancer stem cells (CSCs) remains unclear. In this study, we evaluated the relationship between somatic mutations and epithelial cell adhesion molecule positive (EpCAM(+)) CSCs. METHODS: Two patient-derived HCC samples (HCC1 and HCC2) were sorted by EpCAM expression and analyzed by whole exome sequence. We measured PCDH18 expression level in eight HCC cell lines as well as HCC1 and HCC2 by real-time quantitative RT-PCR...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/29048654/telmisartan-inhibits-hepatocellular-carcinoma-cell-proliferation-in-vitro-by-inducing-cell-cycle-arrest
#4
Kyoko Oura, Tomoko Tadokoro, Shintaro Fujihara, Asahiro Morishita, Taiga Chiyo, Eri Samukawa, Yoshimi Yamana, Koji Fujita, Teppei Sakamoto, Takako Nomura, Hirohito Yoneyama, Hideki Kobara, Hirohito Mori, Hisakazu Iwama, Keiichi Okano, Yasuyuki Suzuki, Tsutomu Masaki
Hepatocellular carcinoma (HCC) is the most common primary malignancy of the liver and the third leading cause of cancer-related death. Telmisartan, a widely used antihypertensive drug, is an angiotensin II type 1 (AT1) receptor blocker (ARB) that might inhibit cancer cell proliferation, but the mechanisms through which telmisartan affects various cancers remain unknown. The aim of the present study was to evaluate the effects of telmisartan on human HCC and to assess the expression of microRNAs (miRNAs). We studied the effects of telmisartan on HCC cells using the HLF, HLE, HepG2, HuH-7 and PLC/PRF/5 cell lines...
September 20, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29032339/synthesis-and-evaluation-of-anticancer-activity-of-boc26p-an-ortho-aryl-chalcone-sodium-phosphate-as-water-soluble-prodrugs-in-vitro-and-in-vivo
#5
Cuige Zhu, Ruimin Wang, Weichao Zheng, Daoyuan Chen, Xin Yue, Yingnan Cao, Wenjing Qin, Haixia Sun, Youqiao Wang, Ziyi Liu, Baojian Li, Jun Du, Xianzhang Bu, Binhua Zhou
Major limitations of chalcones as clinical anticancer agents are water insolubility and poor bioavailability, which may be improved by a classic phosphate prodrug strategy that targets non-specific alkaline phosphatase (ALP) for releasing the parent drug in vivo. In this study, we found that BOC26P, a phosphate prodrug of chalcone OC26, exhibits excellent water solubility and improved plasma concentration in vivo by either i.v. or p.o. compared with the parent drug. In pace with decreased inhibitory activity of BOC26P against microtubule polymerization in vitro and in cells, the antiproliferative activity of BOC26P is attenuated in A549 and HLF cells...
October 12, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28960191/meis2-as-a-critical-player-in-mn1-induced-leukemia
#6
C K Lai, G L Norddahl, T Maetzig, P Rosten, T Lohr, L Sanchez Milde, N von Krosigk, T R Docking, M Heuser, A Karsan, R K Humphries
Meningioma 1 (MN1) is an independent prognostic marker for normal karyotype acute myeloid leukemia (AML), with high expression linked to all-trans retinoic acid resistance and poor survival. MN1 is also a potent and sufficient oncogene in murine leukemia models, strongly dependent on the MEIS1/AbdB-like HOX protein complex to transform common myeloid progenitors, block myeloid differentiation, and promote leukemic stem cell self-renewal. To identify key genes and pathways underlying leukemic activity, we functionally assessed MN1 cell phenotypic heterogeneity, revealing leukemic and non-leukemic subsets...
September 29, 2017: Blood Cancer Journal
https://www.readbyqxmd.com/read/28956385/-design-and-fabrication-of-a-microfluidic-chip-for-the-co-culture-of-three-cell-types
#7
Shuaichao Wang, Yuqing Ge, Lei Wu, Hui Guo, Shiping Yang, Qinghui Jin
Here a microfluidic chip with 'micro-dam' and 'micro-gap' has been designed and fabricated. It could isolate different cells and flow of medium in each region. It was found that the chip could realize the cells co-culture and patterning of human lung adenocarcinoma cell (A549), human embryonic lung fibroblast (HLF-1) and human endothelial cells (HUVECs), respectively. After 72 hours of culture, three kinds of cells grew well. It provided a developing technical platform for cell related research.
February 25, 2017: Sheng Wu Gong Cheng Xue Bao, Chinese Journal of Biotechnology
https://www.readbyqxmd.com/read/28951217/assessing-molecular-initiating-events-mies-key-events-kes-and-modulating-factors-mfs-for-styrene-responses-in-mouse-lungs-using-whole-genome-gene-expression-profiling-following-1-day-and-multi-week-exposures
#8
Melvin E Andersen, George Cruzan, Michael B Black, Salil N Pendse, Darol Dodd, James S Bus, Satinder S Sarang, Marcy I Banton, Robbie Waites, Patrick D McMullen
Styrene increased lung tumors in mice at chronic inhalation exposures of 20ppm and greater. MIEs, KEs and MFs were examined using gene expression in three strains of male mice (the parental C57BL/6 strain, a CYP2F2(-/-) knock out and a CYP2F2(-/-) transgenic containing human CYP2F1, 2A13 and 2B6). Exposures were for 1-day and 1, 4 and 26weeks. After 1-day exposures at 1, 5, 10, 20, 40 and 120ppm significant increases in differentially expressed genes (DEGs) occurred only in parental strain lungs where there was already an increase in DEGs at 5ppm and then many thousands of DEGs by 120ppm...
November 15, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28943934/l-securinine-inhibits-the-proliferation-of-a549-lung-cancer-cells-and-promotes-dkk1-promoter-methylation
#9
Shuwen Han, Xi Yang, Yuefen Pan, Quan Qi, Junjun Shen, Huifen Fang, Zhaoning Ji
L-securinine is a natural product extracted and isolated from the leaf of dried Securinega suffruticosa. The aim of the present study was to explore the effects of L-securinine on proliferation, and the methylation profile of the dickkopf-related protein 1 (DKK1) gene in human lung cancer cells and fibroblasts. L-securinine was extracted, isolated and the structure was identified. The cytotoxicity of L-securinine in A549 cells was evaluated by Cell Counting Kit-8 assays. The expression and DNA methylation profile of DKK genes was analyzed by reverse transcription-quantitative polymerase chain reaction and bisulfite sequencing polymerase chain reaction, respectively...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28914813/lactoferrin-a-natural-glycoprotein-involved-in-iron-and-inflammatory-homeostasis
#10
REVIEW
Luigi Rosa, Antimo Cutone, Maria Stefania Lepanto, Rosalba Paesano, Piera Valenti
Human lactoferrin (hLf), an iron-binding multifunctional cationic glycoprotein secreted by exocrine glands and by neutrophils, is a key element of host defenses. HLf and bovine Lf (bLf), possessing high sequence homology and identical functions, inhibit bacterial growth and biofilm dependently from iron binding ability while, independently, bacterial adhesion to and the entry into cells. In infected/inflamed host cells, bLf exerts an anti-inflammatory activity against interleukin-6 (IL-6), thus up-regulating ferroportin (Fpn) and transferrin receptor 1 (TfR1) and down-regulating ferritin (Ftn), pivotal actors of iron and inflammatory homeostasis (IIH)...
September 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28878310/large-scale-production-of-recombinant-human-lactoferrin-from-high-expression-marker-free-transgenic-cloned-cows
#11
Ming Wang, Zhaolin Sun, Tian Yu, Fangrong Ding, Ling Li, Xi Wang, Mingbo Fu, Haiping Wang, Jinming Huang, Ning Li, Yunping Dai
Human lactoferrin (hLF) is a valuable protein for pharmaceutical products and functional foods, and worldwide demand for this protein has steadily increased. However, large-scale recombinant human lactoferrin (rhLF) production using current animal bioreactor techniques is limited by the low expression of foreign proteins, the use of antibiotic resistance genes and the down-regulation of endogenous milk proteins. Here, we generated a herd of marker-free, hLF bacterial artificial chromosome (BAC) transgenic cloned cows, as confirmed by Polymerase chain reaction, Southern blot and Western blot analyses...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28877257/rosmarinic-acid-potentiates-carnosic-acid-induced-apoptosis-in-lung-fibroblasts
#12
Sana Bahri, Frédérique Mies, Ridha Ben Ali, Mona Mlika, Saloua Jameleddine, Kathleen Mc Entee, Vadim Shlyonsky
Pulmonary fibrosis is characterized by over-population and excessive activation of fibroblasts and myofibroblasts disrupting normal lung structure and functioning. Rosemary extract rich in carnosic acid (CA) and rosmarinic acid (RA) was reported to cure bleomycin-(BLM)-induced pulmonary fibrosis. We demonstrate that CA decreased human lung fibroblast (HLF) viability with IC50 value of 17.13±1.06 μM, while RA had no cytotoxic effect. In the presence of 50 μM of RA, dose-response for CA shifted to IC50 value of 11...
2017: PloS One
https://www.readbyqxmd.com/read/28860144/ipf-lung-fibroblasts-have-a-senescent-phenotype
#13
Diana Alvarez, Nayra Cardenes, Jacobo Sellares, Marta Bueno, Catherine Corey, Vidya Sagar Hanumanthu, Yating Peng, Hannah D'Cuhna, John Sembrat, Mehdi Nouraie, Swaroop Shanker, Chandler Caufield, Sruti Shiva, Mary Armanios, Ana L Mora, Mauricio Rojas
The mechanisms of aging that are involved in the development of idiopathic pulmonary fibrosis (IPF) are still unclear. Although it has been hypothesized that the proliferation and activation of human lung fibroblasts (hLF) are essential in IPF, no studies have assessed how this process works in an aging lung. Our goal was to elucidate if there were age-related changes on primary hLF isolated from IPF lungs compared to age-matched controls. We investigated several hallmarks of aging in hLF from IPF patients and age-matched controls...
August 31, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28853250/-rs-1-enhanced-the-efficiency-of-crispr-cas9-mediated-knock-in-of-human-lactoferrin
#14
Wenjun Zhou, Rihong Guo, Mingtian Deng, Feng Wang, Yanli Zhang
This study aims to knock out the goat β-lactoglobulin (BLG) gene using CRISPR-Cas9 system and knock in human lactoferrin (hLF) at the BLG locus, and further study the effect of RAD51 stimulatory compound (RS-1) on homologous recombination efficiency. First, we designed an sgRNA targeting the first exon of goat BLG gene and constructed a co-expression vector pCas9-sgBLG. This sgRNA vector was then transfected into goat ear fibroblasts (GEFs), and the target region was examined by T7EN1 assay and sequencing...
August 25, 2017: Sheng Wu Gong Cheng Xue Bao, Chinese Journal of Biotechnology
https://www.readbyqxmd.com/read/28816009/protective-effect-of-atazanavir-sulfate-against-pulmonary-fibrosis-in-vivo-and-in-vitro
#15
Shina Song, Yunxia Ji, Guanghua Zhang, Xue Zhang, Bin Li, Defang Li, Wanglin Jiang
Atazanavir sulfate, an antiretroviral protease inhibitor, has been used to treat HIV/AIDS, but its ability to serve as an anti-pulmonary fibrosis (PF) agent remains unknown. In this study, the effects of atazanavir sulfate on various aspects of PF were examined and CoCl2 was used to induce the hypoxia-mimicking condition in vitro, including epithelial-mesenchymal transition (EMT) in A549 cells, endothelial-mesenchymal transition (EndMT) in human pulmonary microvascular endothelial cells (HPMECs), proliferation in human lung fibroblasts (HLF-1) and potential protective effects in human type I alveolar epithelial cells (AT I)...
August 16, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28810065/olodaterol-shows-anti-fibrotic-efficacy-in-in-vitro-and-in-vivo-models-of-pulmonary-fibrosis
#16
Franziska Elena Herrmann, Lutz Wollin, Johannes Wirth, Florian Gantner, Bärbel Lämmle, Eva Wex
BACKGROUND AND PURPOSE: Idiopathic pulmonary fibrosis (IPF) is a fatal respiratory disease characterized by excessive fibroblast activation ultimately leading to scarring of the lungs. Although, the activation of β2 -adrenoceptors (β2 -AR) has been shown to inhibit pro-fibrotic events primarily in cell lines, the role of β2 -adrenoceptor agonists has not yet been fully characterized. The aim of our study was to explore the anti-fibrotic activity of the long-acting β2 -adrenoceptor agonist olodaterol in primary human lung fibroblasts (HLF) and in murine models of pulmonary fibrosis...
November 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28763236/hinge-deficient-igg1-fc-fusion-application-to-human-lactoferrin
#17
Yuki Shiga, Daisuke Murata, Akinori Sugimoto, Yuta Oshima, Minoru Tada, Akiko Ishii-Watabe, Kenichiro Imai, Kentaro Tomii, Takashi Takeuchi, Shinji Kagaya, Atsushi Sato
Fusion of therapeutic proteins with the antibody Fc domain is a strategy widely applied to increase protein half-life in plasma. In our previous study, we generated a recombinant human lactoferrin (hLF)-immunoglobulin G1 Fc fusion protein (hLF-hinge-CH2-CH3) with improved stability, biological activity, and pharmacokinetics ( Shiga , Y. et al. Eur J Pharm Sci. , 2015 , 67 , 136 - -143 ). However, the Fc domain in fusion proteins can potentially induce antibody-dependent and complement-dependent cytotoxicity and serious side effects...
August 18, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28754776/the-hlf-il-6-stat3-feedforward-circuit-drives-hepatic-stellate-cell-activation-to-promote-liver-fibrosis
#18
Dai-Min Xiang, Wen Sun, Bei-Fang Ning, Teng-Fei Zhou, Xiao-Feng Li, Wei Zhong, Zhuo Cheng, Ming-Yang Xia, Xue Wang, Xing Deng, Wei Wang, Heng-Yu Li, Xiu-Liang Cui, Shi-Chao Li, Bin Wu, Wei-Fen Xie, Hong-Yang Wang, Jin Ding
BACKGROUND AND AIMS: Liver fibrosis is a wound-healing response that disrupts the liver architecture and function by replacing functional parenchyma with scar tissue. Recent progress has advanced our knowledge of this scarring process, but the detailed mechanism of liver fibrosis is far from clear. METHODS: The fibrotic specimens of patients and HLF (hepatic leukemia factor)(PB/PB) mice were used to assess the expression and role of HLF in liver fibrosis. Primary murine hepatic stellate cells (HSCs) and human HSC line Lx2 were used to investigate the impact of HLF on HSC activation and the underlying mechanism...
July 28, 2017: Gut
https://www.readbyqxmd.com/read/28728518/successful-preemptive-donor-lymphocyte-infusions-from-a-haploidentical-donor-in-a-boy-with-e2a-hlf-positive-all
#19
Maiko Hirai, Hiroshi Yagasaki, Junya Fujimura, Masami Inoue, Katsuyoshi Shimozawa, Hirotsugu Okuma, Motoaki Chin, Shori Takahashi
No abstract text is available yet for this article.
July 21, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28693249/hepatocyte-selection-medium-enriched-hepatocellular-carcinoma-cells-are-positive-for-%C3%AE-fetoprotein-and-cd44
#20
Minoru Tomizawa, Fuminobu Shinozaki, Yasufumi Motoyoshi, Takao Sugiyama, Shigenori Yamamoto, Naoki Ishige
Tissues surrounding hepatocellular carcinomas (HCCs) lack glucose. Hepatocyte selection medium (HSM) is deficient in glucose and is supplemented with galactose. HCC cells were cultured in HSM to investigate the stem cell markers α-fetoprotein (AFP) and cluster of differentiation 44 (CD44). HCC cells (HLF and PLC/PRF/5 cells) were cultured in HSM. Viable cell numbers were determined on days 0 and 7 following culture in HSM. RNA was isolated and subjected to reverse transcription-quantitative PCR (RT-qPCR) to analyze the mRNA expression levels of AFP and CD44...
July 2017: Oncology Letters
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