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https://www.readbyqxmd.com/read/29231270/profiling-and-characterization-of-micrornas-responding-to-sodium-butyrate-treatment-in-a549-cells
#1
Xiaoqiang Xiao, Yingjie Cao, Haoyu Chen
Butyrate inhibits growth of lung cancer. However, the molecular mechanism is still unclear. Here we profiled miRNAs that responded to sodium butyrate(NaB) stimulation in A549 cells, a non-small cell lung cancer cell line, using microarray. We found 33 up-regulated microRNAs and 22 down-regulated microRNAs (log2≥1.5 folds, P-value<0.05). The expression of miR-3935, miR-574-3p and miR-494-3p was confirmed by realtime qPCR. Then,we explored their potential targets of miR-574-3p and miR-494-3p using long noncoding RNA(LncRNA) microarray...
December 12, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29231066/synthesis-and-characterisation-of-celastrol-derivatives-as-potential-anticancer-agents
#2
Hong-Jian Zhang, Guo-Rui Zhang, Hu-Ri Piao, Zhe-Shan Quan
In the present study, three series of novel celastrol derivatives were designed and synthesised by modifying the carboxylic acid at the 20th position with amino acid, amine, and triazole derivatives. All the synthesised compounds were screened for their anticancer activities using MTT assay against AGS, MGC-803, SGC-7901, HCT-116, A549, HeLa, BEL-7402, and HepG-2 cell lines. Most of the synthesised compounds exhibited potent antiproliferative effects. The most promising compound 3-Hydroxy-9β,13α-dimethyl-2-oxo-24,25,26-trinoroleana-1(10),3,5,7-tetraen-29-oic amide, N-(R)-methyl-3-(1H-indol-2-yl)propanoate (11) showed considerable high anticancer activity against AGS cell lines, with an IC50 value of 0...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/29230631/the-investigation-of-ceranib-2-on-apoptosis-and-drug-interaction-with-carboplatin-in-human-non-small-cell-lung-cancer-cells-in-vitro
#3
Merve Yildiz-Ozer, Pinar Oztopcu-Vatan, Gokhan Kus
Ceramide is found to be involved in inhibition of cell division and induction of apoptosis in certain tumour cells. Ceranib-2 is an agent that increases ceramide levels by inhibiting ceramidase in cancer cells. Therefore, we aimed to investigate the effects of ceranib-2 on cell survival, apoptosis and interaction with carboplatin in human non-small cell lung cancer cells. The cytotoxic effect of ceranib-2 (1-100 µM) was determined by MTT assay in human lung adenocarcinoma (A549) and large cell lung carcinoma (H460) cells...
December 11, 2017: Cytotechnology
https://www.readbyqxmd.com/read/29230236/post-transcriptional-regulation-of-pcsk9-by-mir-191-mir-222-and-mir-224
#4
Parisa Naeli, Fatemeh Mirzadeh Azad, Mahshid Malakootian, Nabil G Seidah, Seyed J Mowla
Since proprotein convertase subtilisin kexin 9 (PCSK9) discovery, a gene involved in LDL metabolism regulation and cardiovascular diseases (CVD), many therapeutic strategies have been introduced for direct targeting of PCSK9. The main goal of these strategies has been to reduce PCSK9 protein level either by application of antibodies or inhibition of its production. In this study, we have tried to discover microRNAs (miRNAs) which can target, and hence regulate, PCSK9 expression. Using bioinformatics tools, we selected three microRNAs with binding sites on 3'-UTR of PCSK9...
2017: Frontiers in Genetics
https://www.readbyqxmd.com/read/29229881/microrna-146-protects-a549-and-h1975-cells-from-lps-induced-apoptosis-and-inflammation-injury
#5
Qiang Wang, Dagang Li, Yuquan Han, Xiaoqian Ding, Tao Xu, Bingjian Tang
Pneumonia is an inflammatory condition affecting the lungs, in which pro-inflammatory cytokines are secreted. It has been shown that microRNA-146 (miR-146) is involved in the regulation of immune and inflammatory responses. The present study explored the protective effects of miR-146 overexpression on lipopolysaccharide (LPS)-mediated injury in A549 and H1975 cells. In this study, A549 and H1975 cells were transfected with miR-146 mimic or inhibitor, and then were subjected with LPS. Thereafter, cell viability, colony formation capacity, apoptosis, the release of proinflammatory factors, Sirt1 expression, and the expression of NF-κB and Notch pathway proteins were respectively assessed...
December 2017: Journal of Biosciences
https://www.readbyqxmd.com/read/29228607/clinical-significance-and-biological-function-of-fucosyltransferase-2-in-lung-adenocarcinoma
#6
Wenyuan Zhou, Huijun Ma, Guoqing Deng, Lili Tang, Jianxin Lu, Xiaoming Chen
Fucosylation, which is catalyzed by fucosyltransferases (FUTs), is one of the most important glycosylation events involved in cancer. Studies have shown that fucosyltransferase 8 (FUT8) is overexpressed in NSCLC and promotes lung cancer progression. However, there are no reports about the pathological role of fucosyltransferase 2 (FUT2) in lung cancer. To identify FUT2 associated with lung cancer, the expression and clinical significance of FUT2 in lung cancer was investigated by Real-Time PCR, Immunohistochemistry and Western Blot...
November 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228584/combination-of-calr-and-pdia3-is-a-potential-prognostic-biomarker-for-non-small-cell-lung-cancer
#7
Ke Wang, Hao Li, Ruo Chen, Yang Zhang, Xiu-Xuan Sun, Wan Huang, Huijie Bian, Zhi-Nan Chen
Proteomic-based approaches for biomarker discovery are promising strategies used in cancer research. In this study, we performed quantitative proteomic analysis on 16 paired samples of non-small cell lung cancer (NSCLC) and adjacent non-tumor lung tissues using label-free quantitative proteomics and liquid chromatography-tandem mass spectrometry/mass spectrometry (LC-MS/MS) to identify differentially expressed proteins. A total of 91 proteins were differentially expressed in NSCLC compared with adjacent non-tumor lung tissues among 4047 identified proteins (fold change > 1...
November 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228209/cd38-knockout-suppresses-tumorigenesis-in-mice-and-clonogenic-growth-of-human-lung-cancer-cells
#8
Xiangning Bu, Jiro Kato, Julie A Hong, Maria J Merino, David S Schrump, Frances E Lund, Joel Moss
The ectodomain of the plasma membrane ecto-enzyme CD38 functions as both an NAD glycohydrolase and an ADP-ribosyl cyclase by catalyzing, respectively, the conversion of NAD to nicotinamide and ADP-ribose or cyclic ADP-ribose. CD38 is attracting particular attention in cancer therapy. An anti-CD38 monoclonal antibody (daratumumab) was approved for treatment of patients with multiple myeloma. However, the role of CD38 in non-hematological malignancies has not been explored. Previously, we reported that ADP-ribose-acceptor hydrolase (ARH)-1 deficiency in mice was associated with tumor development...
December 8, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/29227908/the-selectivity-of-artemisinin-based-drugs-on-human-lung-normal-and-cancer-cells
#9
Xinyang Li, Shiyan Gu, Donglei Sun, Huangmei Dai, Hongyu Chen, Zunzhen Zhang
Artemisinin-based drugs are documented to possess anticancer potential that is selectively effective to cancer cells. However, this selectivity is disputable in different studies and the mechanism is still unclear. To clarify this discrepancy, this study employed five assays to evaluate the cytotoxic effects of artemisinin and artesunate on normal human bronchial epithelial (HBE) cells and lung adenocarcinoma A549 cells. The results of five cytotoxic assays coherently showed that artemisinin and artesunate caused dose-dependent cytotoxicity in both HBE and A549 cells with a slight selectivity to A549 cells...
December 7, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/29225515/anticancer-activity-of-astragalus-polysaccharide-in-human-non-small-cell-lung-cancer-cells
#10
Chao-Yan Wu, Yuan Ke, Yi-Fei Zeng, Ying-Wen Zhang, Hai-Jun Yu
Background: We have reported that Chinese herbs Astragalus polysaccharide (APS) can inhibit nuclear factor kappaB (NF-κB) activity during the development of diabetic nephropathy in mice. NF-κB plays important roles in genesis, growth, development and metastasis of cancer. NF-κB is also involved in the development of treatment resistance in tumors. Here we investigated the antitumor activity of APS in human non-small cell lung cells (A549 and NCI-H358) and the related mechanisms of action...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/29224995/evaluation-of-alkylating-pyrrole-imidazole-polyamide-conjugates-by-a-novel-method-for-high-throughput-sequencer
#11
Gengo Kashiwazaki, Rina Maeda, Takashi Kawase, Kaori Hashiya, Toshikazu Bando, Hiroshi Sugiyama
N-Methylpyrrole-N-methylimidazole (PI) polyamides are a class of DNA minor groove binders with DNA sequence-specificity. DNA-alkylating PI polyamide conjugates are attractive candidates as anticancer drugs acting through DNA damage and its subsequent inhibition of cell proliferation. One example is a chlorambucil-PI polyamide conjugate targeting the runt-related transcription factor (RUNX) family. RUNX1 has pro-oncogenic properties in acute myeloid leukemia, and recently the chlorambucil-PI polyamide conjugate was demonstrated to have anticancer effects...
November 29, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/29224378/carotane-type-sesquiterpenes-from-cultures-of-the-insect-pathogenic-fungus-isaria-fumosorosea
#12
Jun Zhang, Sha-Sha Liu, Wei-Yu Yuan, Jing-Jing Wei, You-Xing Zhao, Du-Qiang Luo
Two new carotane-type sesquiterpenes named trichocaranes E (1) and F (2), along with two known ones CAF-603 (3) and trichocarane C (4), were isolated from cultures of the insect pathogenic fungus Isaria fumosorosea. Their structures and relative configurations were elucidated by extensive spectroscopic analysis and X-ray crystallography. Compounds 1-3 showed potent cytotoxic activities against six tumor cell lines MDA, MCF-7, SKOV-3, Hela, A549, HepG2 with IC50 values in a concentration range of 0.1-6.0 μg/ml...
December 10, 2017: Journal of Asian Natural Products Research
https://www.readbyqxmd.com/read/29223555/emerging-roles-of-circular-rna-hsa_circ_0000064-in-the-proliferation-and-metastasis-of-lung-cancer
#13
Yan-Hong Luo, Xiang-Zhi Zhu, Ke-Wei Huang, Qian Zhang, Yan-Xin Fan, Peng-Wei Yan, Jing Wen
Circular RNAs (circRNAs), a novel class of widespread and diverse endogenous RNAs, can regulate gene expression in mammals. CircRNAs have recently been identified as microRNA sponges and involved in the development of some human diseases. However, the role of circRNAs in the process of tumorigenesis and development of lung cancer remains vague. The purpose of this study is to investigate the role of circRNAs in the lung cancer. In this study, we chose hsa_circ_0000064 as a targeted circRNA to investigate its clinical significances in lung cancer patients...
December 6, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29222745/mir-26a-functions-as-a-tumor-suppressor-in-ambient-particulate-matter-bound-metal-triggered-lung-cancer-cell-metastasis-by-targeting-lin28b-il6-stat3-axis
#14
Yan-Yang Lu, Yi Lin, Dong-Xiao Ding, Shu Su, Qiao-Qiao Chi, You-Chi Zhang, Jian Sun, Xu Zhang, Hui-Min Zhu, Qian-Sheng Huang, Yu-Lang Chi, Guo-Zhu Ye, Shu Tao, Si-Jun Dong
Exposure to ambient particulate matter (PM) has been linked to the increasing incidence and mortality of lung cancer, but the principal toxic components and molecular mechanism remain to be further elucidated. In this study, human lung adenocarcinoma A549 cells were treated with serial concentrations of water-extracted PM10 (WE-PM10) collected from Beijing, China. Our results showed that exposure to 25 and 50 μg/ml of WE-PM10 for 48 h significantly suppressed miR-26a to upregulate lin-28 homolog B (LIN28B), and in turn activated interleukin 6 (IL6) and signal transducer and activator of transcription 3 (STAT3) in A549 cells, subsequently contributing to enhanced epithelial-mesenchymal transition and accelerated migration and invasion...
December 8, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/29221188/overexpression-of-agt-promotes-bronchopulmonary-dysplasis-via-the-jak-stat-signal-pathway
#15
Lili Shen, Tiancheng Zhang, Hongyan Lu
Angiotensinogen (AGT) is involved in the production of angiotensin II which is the main mediator of action of the rennin-angiotensin system (RAS), whereas the RAS mediates the regulation of sodium homeostasis, blood pressure, and inflammation. The present study aimed to investigate the roles of the AGT in the progression of broncopulmonary dysplasia in premature newborns. By bioinformatics analysis, AGT was found to be the major node in molecular interaction networks of BPD mouse model. Quantitative PCR and western blot analyses were applied to examine AGT expression in A549 cells which were treated with the hyperoxic condition...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29219949/a-micrna-200c-cathepsin-l-feedback-loop-determines-paclitaxel-resistance-in-human-lung-cancer-a549-cells-in-vitro-through-regulating-epithelial-mesenchymal-transition
#16
Yi-Fan Zhao, Mei-Ling Han, Ya-Jie Xiong, Long Wang, Yao Fei, Xiao Shen, Ying Zhu, Zhong-Qin Liang
Cathepsin L (CTSL), a cysteine protease, is closely related to tumor occurrence, development, and metastasis, and possibly regulates cancer cell resistance to chemotherapy. miRNAs, especially the miR-200 family, have been implicated in drug-resistant tumors. In this study we explored the relationship of CTSL, micRNA-200c and drug resistance, and the potential regulatory mechanisms in human lung cancer A549 cells and A549/TAX cells in vitro. A549/TAX cells were paclitaxel-resistant A549 cells overexpressing CTSL and characterized by epithelial-mesenchymal transition (EMT)...
December 7, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29219223/benzothiazole-based-cycloplatinated-chromophores-synthesis-optical-and-biological-studies
#17
Elena Lalinde, M Teresa Moreno, Rebeca Lara, Icíar P López, Elvira Alfaro-Arnedo, José G Pichel, Sergio Piñeiro-Hermida
Complexes based on 2-(4-substituted)benzothiazole ligands of type [Pt(R-pbt-C,N)Cl(L)] (R = Br 1, Me2N 2; L = DMSO a, PTA b, TPPTS c) and [Pt(Br-pbt-C)Cl(PTA)2] 3 are presented. On the basis of the photophysical data and TD-DFT calculations (1a, 2a) the low lying transitions (absorption and emission) were associated to ligand center (LC) with minor MLCT character and to intraligand ILCT charge transfer [Me2N-pbtpbt] excited states, respectively. The study of the effect of the concentration on emissive behavior of 2a,b indicated the occurrence of aggregation induced luminescence properties (Pt···Pt/·· interactions)...
December 8, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29219208/lncrna-h19-promotes-epithelial-mesenchymal-transition-emt-by-targeting-mir-484-in-human-lung-cancer-cells
#18
Qianqian Zhang, Xiaoliang Li, Xiao Li, Xiaosu Li, Zhuochang Chen
BACKGROUND: Recently, the long non-coding RNA (lncRNA) H19 has been identified as an oncogenic gene in multiple cancer types. However, the molecular basis for this observation has not been characterized in lung cancer, especially during epithelial mesenchymal transition (EMT) progression. METHODS: Cell viability, migration, invasion, and apoptosis were measured using trypan blue exclusion assay, Transwell migration/invasion assay, andflow cytometry, respectively...
December 8, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29218652/metastasis-suppressor-1-mtss1-expression-is-associated-with-reduced-in-vivo-metastasis-and-enhanced-patient-survival-in-lung-adenocarcinoma
#19
Matthew D Taylor, Oana Bollt, Soumya C Iyer, Gavin P Robertson
Metastasis suppressor 1 (MTSS1) has been shown to be a metastasis suppressor in a number of cancers. However, its role in lung adenocarcinoma is largely unknown. To evaluate the significance of MTSS1 expression on lung adenocarcinoma metastatic properties, the gain or loss of MTSS1 in in vivo and in vitro experiments were employed. Using an in vivo orthotopic mouse xenograft model mimicking human disease progression, stable overexpression of MTSS1 in lung adenocarcinoma cells resulted in a significant decrease in metastatic burden...
December 7, 2017: Clinical & Experimental Metastasis
https://www.readbyqxmd.com/read/29218325/protection-of-meconium-induced-lung-epithelial-injury-by-protease-inhibitors
#20
C Ota, I Gopallawa, V Ivanov, I H Gewolb, B D Uhal
Earlier work form this laboratory showed that exposure of alveolar epithelial cells (AECs) to meconium caused significant cell detachment and that meconium-induced detachment of cells was prevented by a protease inhibitor cocktail. Therefore, it was hypothesized that protease inhibitors might protect AEC monolayers against meconium-induced collapse of epithelial barrier function both in vitro and in vivo. To investigate this theory in vitro, albumin flux was measured across cultured, confluent monolayers of human type II derived cell line A549 on microporous filter inserts...
2017: Journal of Lung, Pulmonary & Respiratory Research
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