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https://www.readbyqxmd.com/read/28741371/dexamethasone-ameliorates-h2s-induced-acute-lung-injury-by-increasing-claudin-5-expression-via-the-pi3k-pathway
#1
P Geng, T Ma, J Xing, L Jiang, H Sun, B Zhu, H Zhang, H Xiao, J Wang, J Zhang
Acute lung injury (ALI) is a major outcome of exposure to high levels of hydrogen sulfide (H2S). Dexamethasone (DXM) has been used to treat ALI. However, the mechanisms involved in H2S-induced ALI and the protective mechanisms of DXM in treating ALI are still nebulous. To explore the mechanisms involved, we evaluated the role of claudin-5 in the protective effect of DXM against H2S-induced ALI. Sprague-Dawley rats were exposed to H2S to establish the ALI model. In parallel with the animal model, a cell model was also established by incubating human umbilical vein endothelial cells (HUVECs) with NaHS...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/28738500/mir-101-3p-inhibits-the-growth-and-metastasis-of-non-small-cell-lung-cancer-through-blocking-pi3k-akt-signal-pathway-by-targeting-malat-1
#2
Xiaoqiang Zhang, Xianju He, Yunbing Liu, Huiqing Zhang, He Chen, Shanxian Guo, Yonggang Liang
BACKGROUND: MiR-101-3p is an important tumor suppressor miRNA in many human cancers. This study was to investigate the role of miR-101-3p in the progression of non-small cell lung cancer (NSCLC) and its potential underlying mechanism. METHODS: In this study, the endogenous expression of miR-101-3p or MALAT-1 in cells was modulated by cell transfection assays. The regulatory interaction of miR-101-3p and MALAT-1 was examined by Luciferase reporter gene and RNA pull-down assays...
July 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28725482/systems-biology-driving-drug-development-from-design-to-the-clinical-testing-of-the-anti-erbb3-antibody-seribantumab-mm-121
#3
REVIEW
Birgit Schoeberl, Art Kudla, Kristina Masson, Ashish Kalra, Michael Curley, Gregory Finn, Emily Pace, Brian Harms, Jaeyeon Kim, Jeff Kearns, Aaron Fulgham, Olga Burenkova, Viara Grantcharova, Defne Yarar, Violette Paragas, Jonathan Fitzgerald, Marisa Wainszelbaum, Kip West, Sara Mathews, Rachel Nering, Bambang Adiwijaya, Gabriela Garcia, Bill Kubasek, Victor Moyo, Akos Czibere, Ulrik B Nielsen, Gavin MacBeath
The ErbB family of receptor tyrosine kinases comprises four members: epidermal growth factor receptor (EGFR/ErbB1), human EGFR 2 (HER2/ErbB2), ErbB3/HER3, and ErbB4/HER4. The first two members of this family, EGFR and HER2, have been implicated in tumorigenesis and cancer progression for several decades, and numerous drugs have now been approved that target these two proteins. Less attention, however, has been paid to the role of this family in mediating cancer cell survival and drug tolerance. To better understand the complex signal transduction network triggered by the ErbB receptor family, we built a computational model that quantitatively captures the dynamics of ErbB signaling...
2017: NPJ Systems Biology and Applications
https://www.readbyqxmd.com/read/28723640/trim22-confers-poor-prognosis-and-promotes-epithelial-mesenchymal-transition-through-regulation-of-akt-gsk3%C3%AE-%C3%AE-catenin-signaling-in-non-small-cell-lung-cancer
#4
Li Liu, Xiao-Ming Zhou, Fang-Fei Yang, Yuan Miao, Yan Yin, Xue-Jun Hu, Gang Hou, Qiu-Yue Wang, Jian Kang
Expression pattern and biological roles of TRIM22 remains unknown in most human cancers. The present study aims to discover its clinical significance and function in human non-small cell lung cancer (NSCLC). Immunohistochemistry was used to examine TRIM22 expression in 126 cases of NSCLC specimens. TRIM22 protein was upregulated in 70/126 (55.6%) non-small cell lung cancer tissues compared with normal lung tissue. TRIM22 overexpression was associated with advanced TNM stage, positive nodal metastasis and poor prognosis...
July 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28722813/knockdown-of-long-non-coding-rna-malat1-inhibits-growth-and-motility-of-human-hepatoma-cells-via-modulation-of-mir-195
#5
Dingli Liu, Yun Zhu, Jinke Pang, Xie Weng, Xiaorong Feng, Yabing Guo
The metastasis-associated lung adenocarcinoma transcription 1 (Malat1) is a long non-coding RNA (lncRNA), exerts oncogenic role in multiple cancers, including hepatocellular carcinoma (HCC). This study was aimed to investigate its posttranscriptional regulation in HCC cells. RT-PCR was performed to monitor the expression levels of Malat1 in normal liver and HCC cell lines. The expression of Malat1, microRNA (miR)-195 and epidermal growth factor receptor (EGFR) in HepG2 and MHCC97 cells was respectively or synchronously altered by transfection...
July 19, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28718726/effects-of-the-notch1-signaling-pathway-on-human-lung-cancer-a549-cells
#6
Yun Zeng, Bijian Yin, Xinwei Wang, Guohao Xia, Zhengjie Shen, Wenzhe Gu, Mianhua Wu
PURPOSE: To evaluate the effects of the Notch1 signaling pathway on human lung cancer A549 cells. MATERIALS AND METHODS: A549 cells were transfected with recombinant plasmids. Cell proliferation was detected by MTT assay. A tumor-bearing mouse model was established for intratumoral gene injection. Apoptosis-related factors were detected by immunohistochemical assay. Caspase-8, caspase-3, caspase-9, PI3K, pAkt and pSTAT3 expressions were detected by Western blotting...
July 18, 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/28715819/effect-of-microrna-135a-on-cell-proliferation-migration-invasion-apoptosis-and-tumor-angiogenesis-through-the-igf-1-pi3k-akt-signaling-pathway-in-non-small-cell-lung-cancer
#7
Yufei Zhou, Shaoxia Li, Jiangtao Li, Dongfeng Wang, Quanxing Li
OBJECTIVE: This study explored the ability of microRNA-135a (miR-135a) to influence cell proliferation, migration, invasion, apoptosis and tumor angiogenesis through the IGF-1/PI3K/Akt signaling pathway in non-small cell lung cancer (NSCLC). METHODS: NSCLC tissues and adjacent normal tissues were collected from 138 NSCLC patients. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to detect the expression levels of miR-135a and IGF-1, PI3K, Akt, VEGF, bFGF and IL-8 mRNA; western blotting was used to determine the expression levels of IGF-1, PI3K and Akt protein; and enzyme-linked immunosorbent assay (ELISA) was used to analyze the expression levels of VEGF, bFGF and IL-8 protein...
July 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28713974/mirna-125b-regulates-apoptosis-of-human-non-small-cell-lung-cancer-via-the-pi3k-akt-gsk3%C3%AE-signaling-pathway
#8
Yingyi Wang, Ming Zhao, Jieying Liu, Zhao Sun, Jianjiao Ni, Hongsheng Liu
The present investigation demonstrated that regulation of microRNA (miR)-125b affected the apoptosis of human non-small cell lung cancer (NSCLC) through targeting of the PI3K/Akt and Wnt/β-catenin signaling pathways. The expression of miR-125b was assessed in patients with NSCLC, which demonstrated that miR-125b expression in NSCLC tissue was higher than that in para-carcinoma tissue. Furthermore, survival analysis of patients with NSCLC over 3 years indicated that the overall survival (OS) and disease-free survival (DFS) rates of patients with low miR-125b expression were higher than those of patients with high miR-125b expression...
July 12, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28713928/upregulation-of-wnt-signaling-under-hypoxia-promotes-lung-cancer-progression
#9
Chun-Fu Hong, Wei-You Chen, Cheng-Wen Wu
The hypoxic tumor microenvironment induces epithelial-mesenchymal transition (EMT) in tumor cells and increases tumor cell malignancy. Previous studies indicated that malfunction of Wnt signaling is observed in some lung cancer patients. Athough crosstalk between hypoxia and Wnt signaling in tumor cells has recently been revealed, the detailed underlying mechanisms have not been well defined. In the present study, we demonstrated that hypoxia in lung adenocarcinoma cells can enhance Wnt signaling activity by stabilizing β-catenin and altering its localization into the nucleus...
July 12, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28713921/anti%C3%A2-lung-cancer-effect-of-glucosamine-by-suppressing-the-phosphorylation-of-foxo
#10
Zhanwu Yu, Yinghua Ju, Hongxu Liu
Lung cancer is the most common cause of cancer‑associated mortality worldwide, and glucosamine has the potential to exhibit antitumor activity. To reveal its anti‑lung cancer mechanism, the present study investigated the effect of glucosamine on the transcriptional activity of forkhead box O (FOXO)1 and FOXO3, and associated signal transduction pathways in A549 cells. An MTT assay was performed to investigate cell viability and immunoblotting was performed to detect protein levels of FOXO1/3, phosphorylated (p)‑FOXO1/3, AKT, p‑AKT, extracellular signal‑regulated kinase (ERK) and p‑ERK, and the levels of β‑O‑linked N‑acetylglucosamine (O‑GlcNAc)‑modified FOXO1 protein...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28706145/reverse-phase-protein-array-rppa-combined-with-computational-analysis-to-unravel-relevant-prognostic-factors-in-non-small-cell-lung-cancer-nsclc-a-pilot-study
#11
Vienna Ludovini, Rita Chiari, Lorenzo Tomassoni, Chiara Antonini, Elisa Baldelli, Sara Baglivo, Annamaria Sigillino, Francesca Romana Tofanetti, Guido Bellezza, K Alex Hodge, Emanuel Petricoin, Mariaelena Pierobon, Lucio Crinò, Fortunato Bianconi
In this work high throughput technology and computational analysis were used to study two stage IV lung adenocarcinoma patients treated with standard chemotherapy with markedly different survival (128 months vs 6 months, respectively) and whose tumor samples exhibit a dissimilar protein activation pattern of the signal transduction. Tumor samples of the two patients were subjected to Reverse Phase Protein Microarray (RPPA) analysis to explore the expression/activation levels of 51 signaling proteins. We selected the most divergent proteins based on the ratio of their RPPA values in the two patients with short (s-OS) and long (l-OS) overall survival (OS) and tested them against a EGFR-IGF1R mathematical model...
June 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28704922/transcriptome-differences-in-porcine-alveolar-macrophages-from-tongcheng-and-large-white-pigs-in-response-to-highly-pathogenic-porcine-reproductive-and-respiratory-syndrome-virus-prrsv-infection
#12
Wan Liang, Likai Ji, Yu Zhang, Yueran Zhen, Qingde Zhang, Xuewen Xu, Bang Liu
Porcine reproductive and respiratory syndrome virus (PRRSV) is a single-stranded positive-sense RNA virus that can cause devastating reproductive failure and respiratory tract lesions, which has led to serious damage to the swine industry worldwide. Our previous studies have indicated that Tongcheng (TC) pigs, a Chinese local breed, have stronger resistance or tolerance to PRRSV infection than Large White (LW) pigs. This study aims to investigate their host transcriptome differences in porcine alveolar macrophages (PAMs) at 7 days post challenge...
July 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28698809/p-rex1-expression-in-invasive-breast-cancer-in-relation-to-receptor-status-and-distant-metastatic-site
#13
Jonathan D Marotti, Kristen E Muller, Laura J Tafe, Eugene Demidenko, Todd W Miller
BACKGROUND: Phosphatidylinositol-3,4,5-trisphosphate-dependent Rac exchange factor 1 (P-Rex1) has been implicated in cancer growth, metastasis, and response to phosphatidylinositol 3-kinase (PI3K) inhibitor therapy. The aim of this study was to determine whether P-Rex1 expression differs between primary and metastatic human breast tumors and between breast cancer subtypes. DESIGN: P-Rex1 expression was measured in 133 specimens by immunohistochemistry: 40 and 42 primary breast tumors from patients who did versus did not develop metastasis, respectively, and 51 breast-derived tumors from metastatic sites (36 of which had matching primary tumors available for analysis)...
2017: International Journal of Breast Cancer
https://www.readbyqxmd.com/read/28698410/combination-treatment-of-rad001-and-bez235-exhibits-synergistic-antitumor-activity-via-down-regulation-of-p-4e-bp1-mcl-1-in-small-cell-lung-cancer
#14
Bo Hong, Huogang Wang, Ke Deng, Wei Wang, Haiming Dai, Vivian Wai Yan Lui, Wenchu Lin
Small cell lung cancer (SCLC) is a highly malignant cancer with few targeted therapies. In the study, by mining the Cancer Cell Line Encyclopedia (CCLE) database, we found that PI3K/AKT/mTOR pathway was aberrant in 92% of SCLC cell lines. Moreover, we found that the phosphorylation level of 4E-BP1 was significantly correlated with SCLC sensitivity to RAD001 (mTOR inhibitor) and BEZ235 (PI3K/mTOR dual inhibitor). Combination of RAD001 and BEZ235 synergistically inhibited the growth of SCLC cells, which was accompanied by enhanced induction of cell cycle arrest and apoptosis...
July 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28698396/metapristone-ru486-metabolite-suppresses-nsclc-by-targeting-egfr-mediated-pi3k-akt-pathway
#15
Jingwei Shao, Guirong Zheng, Hongning Chen, Jian Liu, Aixiao Xu, Fan Chen, Tao Li, Yusheng Lu, Jianguo Xu, Ning Zheng, Lee Jia
Therapies targeting epidermal growth factor receptor (EGFR) can effectively treat with non-small cell lung cancer (NSCLC), but NSCLC's drug resistance makes it intractable. Herein, we showed that RU486 metabolite metapristone inhibited the proliferation of various NSCLC cell lines with either wild (A549, H1299, H520) or mutated EGFR (H1975, HCC827). The suppression was resulted from inhibition by metapristone of EGFR signaling pathways through down-regulating the EGFR, PTEN, as well as AKT and ERK proteins...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28693193/allicin-inhibits-the-invasion-of-lung-adenocarcinoma-cells-by-altering-tissue-inhibitor-of-metalloproteinase-matrix-metalloproteinase-balance-via-reducing-the-activity-of-phosphoinositide-3-kinase-akt-signaling
#16
Ling Huang, Yuanhong Song, Jianping Lian, Zhiwei Wang
Allicin, the main active principle associated with Allium sativum chemistry, has various antitumor activities. However, to the best of our knowledge, there is no available information to address the anti-invasive effect and associated mechanism in lung adenocarcinoma. In the present study, cell viability assay, cell adhesion assay, western blot analysis, Transwell migration and invasion assays and reverse transcription-quantitative polymerase chain reaction were performed. Allicin was identified to inhibit the adhesion, invasion and migration of lung adenocarcinoma cells in a dose-dependent manner, accompanied by decreasing mRNA and protein levels of matrix metalloproteinase (MMP)-2 and MMP-9...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28693139/azithromycin-effectively-inhibits-tumor-angiogenesis-by-suppressing-vascular-endothelial-growth-factor-receptor-2-mediated-signaling-pathways-in-lung-cancer
#17
Fajiu Li, Jie Huang, Dongyuan Ji, Qinghua Meng, Chuanhai Wang, Shi Chen, Xiaojiang Wang, Zhiyang Zhu, Cheng Jiang, Yi Shi, Shuang Liu, Chenghong Li
Tumor angiogenesis is essential during lung cancer development and targeting angiogenesis may possess a potential therapeutic value. The present study demonstrates that azithromycin, a Food and Drug Administration-approved antibiotic drug, is a novel tumor angiogenesis inhibitor. Azithromycin inhibits capillary network formation of human lung tumor associated-endothelial cells (HLT-ECs) in vitro and in vivo. It significantly inhibits HLT-EC adhesion and vascular endothelial growth factor (VEGF)-induced proliferation of HLT-ECs in a dose-dependent manner without affecting migration...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28688971/tumor-vessel-normalization-by-the-pi3k-inhibitor-hs-173-enhances-drug-delivery
#18
Soo Jung Kim, Kyung Hee Jung, Mi Kwon Son, Jung Hee Park, Hong Hua Yan, Zhenghuan Fang, Yeo Wool Kang, Boreum Han, Joo Han Lim, Soon-Sun Hong
Tumor vessels are leaky and immature, which causes poor oxygen and nutrient supply to tumor vessels and results in cancer cell metastasis to distant organs. This instability of tumor blood vessels also makes it difficult for anticancer drugs to penetrate and reach tumors. Numerous tumor vessel normalization approaches have been investigated for improving drug delivery into tumors. In this study, we investigated whether phosphoinositide 3-kinase (PI3K) inhibitors are able to improve vascular structure and function over the prolonged period necessary to achieve effective vessel normalization...
July 6, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28680363/induction-of-apoptosis-and-proliferation-inhibition-of-hepatocellular-carcinoma-by-6-chloro-2-methoxy-n-phenylmethyl-9-acridinamine-ba-in-vitro-and-vivo-studies
#19
Yun Huang, Guohua Liu, Feng Yang, Xiaowei Xing, Ying Li, Zhijun Huang, Hong Yuan
BACKGROUND: 6-Chloro-2-methoxy-N-(phenylmethyl)-9-acridinamine (BA), a novel sponge-derived compound, has been reported to elicit a cytotoxic effect by inhibiting cell proliferation. METHODS: In this study, we investigated the anti-tumor effect of BA in human hepatocellular carcinoma (HCC) in vitro and in vivo using SMMC-7721 cells. The impact of BA on SMMC-7721 cells was determined by proliferation (clonogenicity and MTT), apoptosis (flow cytometry with annexin V-FITC labeling) and tumor cell migration (Transwell)...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/28678919/microrna-142-3p-inhibits-apoptosis-and-inflammation-induced-by-bleomycin-through-down-regulation-of-cox-2-in-mle-12-cells
#20
F Guo, S C Lin, M S Zhao, B Yu, X Y Li, Q Gao, D J Lin
microRNA (miR)-142-3p is implicated in malignancy and has been identified as a biomarker for aggressive and recurrent lung adenocarcinomas. This study aimed to evaluate the inhibitory effect of miR-142-3p on apoptosis and inflammation induced by bleomycin in MLE-12 cells. MLE-12 cells were first transfected either with miR-142-3p mimic or miR-142-3p inhibitor and then the cells were exposed to 50 μg/mL of bleomycin. Thereafter, cell viability, apoptosis and the expression of pro-inflammatory cytokines were assessed using CCK-8, flow cytometry, RT-PCR and western blot analyses...
July 3, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
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