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https://www.readbyqxmd.com/read/28637023/cationic-liquid-crystalline-nanoparticles-for-the-delivery-of-synthetic-rnai-based-therapeutics
#1
Emanuela Gentile, Taro Oba, Jing Lin, Ruping Shao, Feng Meng, Xiaobo Cao, Heather Y Lin, Majidi Mourad, Apar Pataer, Veerabhadran Baladandayuthapani, Dong Cai, Jack A Roth, Lin Ji
RNA interference (RNAi)-based therapeutics have been used to silence the expression of targeted pathological genes. Small interfering RNA (siRNAs) and microRNA (miRNAs) inhibitor have performed this function. However, short half-life, poor cellular uptake, and nonspecific distribution of small RNAs call for the development of novel delivery systems to facilitate the use of RNAi. We developed a novel cationic liquid crystalline nanoparticle (CLCN) to efficiently deliver synthetic siRNAs and miRNAs. CLCNs were prepared by using high-speed homogenization and assembled with synthetic siRNA or miRNA molecules in nuclease-free water to create CLCN/siRNA or miRNA complexes...
June 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28631574/microrna-125a-5p-plays-a-role-as-a-tumor-suppressor-in-lung-carcinoma-cells-by-directly-targeting-stat3
#2
Lou Zhong, Siyuan Sun, Jiahai Shi, Fei Cao, Xiao Han, Zhong Chen
Increasing evidence supports that the dysregulation of microRNA expression plays an important role in the process of tumor occurrence and development. Studies have found that mir-125a-5p expression was downregulated in a variety of tumors, but the effects and mechanism of mir-125a-5p in lung cancer are still unclear. The aim of this study is to detect the expression of mir-125a-5p in lung cancer tissues and lung cancer cell lines and to explore the effects of mir-125a-5p on the biological characteristics of lung cancer cells; thus, this study aims to provide new methods and new strategies for the treatment of lung cancer...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28629464/mir-629-3p-may-serve-as-a-novel-biomarker-and-potential-therapeutic-target-for-lung-metastases-of-triple-negative-breast-cancer
#3
Jin Wang, Cailu Song, Hailin Tang, Chao Zhang, Jun Tang, Xing Li, Bo Chen, Xiaoming Xie
BACKGROUND: Different breast cancer subtypes show distinct tropisms for sites of metastasis. Notably, the lung is the most common site for the first distant recurrence in triple-negative breast cancer (TNBC). The identification of novel biomarkers for lung metastasis is of great importance to improving the outcome of TNBC. In this study, we sought to identify a microRNA (miRNA)-based biomarker and therapeutic target for lung metastasis of TNBC. METHODS: A total of 669 patients without de novo stage IV TNBC were recruited for this study...
June 19, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28623945/mir-155-is-overexpressed-in-systemic-sclerosis-fibroblasts-and-is-required-for-nlrp3-inflammasome-mediated-collagen-synthesis-during-fibrosis
#4
Carol M Artlett, Sihem Sassi-Gaha, Jennifer L Hope, Carol A Feghali-Bostwick, Peter D Katsikis
BACKGROUND: Despite the important role that microRNAs (miRNAs) play in immunity and inflammation, their involvement in systemic sclerosis (SSc) remains poorly characterized. miRNA-155 (miR-155) plays a role in pulmonary fibrosis and its expression can be induced with interleukin (IL)-1β. SSc fibroblasts have activated inflammasomes that are integrally involved in mediating the myofibroblast phenotype. In light of this, we investigated whether miR-155 played a role in SSc and if its expression was dependent on inflammasome activation...
June 17, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28618167/neuropilin-1-regulated-by-mir-320-contributes-to-the-growth-and-metastasis-of-cholangiocarcinoma-cells
#5
Huaqiang Zhu, Xian Jiang, Xu Zhou, Xuesong Dong, Kai Xie, Chuncheng Yang, Hongchi Jiang, Xueying Sun, Jun Lu
BACKGROUND: Neuropilin-1 (NRP-1) activates signaling pathways as multifunctional co-receptors in cancer cells. However, its role and how it is regulated by miRNAs in cholangiocarcinoma (CCA) have not yet been investigated. METHODS: The expression of NRP-1, miR-320 and key molecules involved in cell proliferation, migration and related signaling pathways were detected by immunohistochemistry, immunoblotting and qRT-PCR. Stable transfectants depleted of NRP-1 were generated...
June 15, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28617947/poly-r-c-binding-protein-1-mediated-regulation-of-microrna-expression-underlies-post-sevoflurane-amelioration-of-acute-lung-injury-in-rats
#6
Xiaohong Zhao, Xiaoxia Wang, Fei Wang, Changjie Gao, Jian Wang
BACKGROUND: Acute lung injury (ALI) presents a pervasive health burden due to the high morbidity and mortality associated with it. Volatile anesthetics like sevoflurane has been previously shown to have organ-protective effect, both in the context of normal physiological function in liver, and during LPS-induced ALI. Sevoflurane was shown to exert lung protective effect during LPS-induced ALI by modulating expression level of microRNAs (miRNAs), specifically miR-155. The objective of the current study was to define the underlying mechanism by which sevoflurane alters miRNA expression levels...
June 15, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28617945/microrna-cluster-106a-363-is-involved-in-t-helper-17-th17-cell-differentiation
#7
Marc Kaestle, Sabine Bartel, Kerstin Geillinger-Kästle, Martin Irmler, Johannes Beckers, Bernhard Ryffel, Oliver Eickelberg, Susanne Krauss-Etschmann
T-helper cell 17 (Th17) mediated inflammation is associated with various diseases including autoimmune encephalitis, inflammatory bowel disease and lung diseases such as chronic obstructive pulmonary disease and asthma. Differentiation into distinct Th subtypes needs to be tightly regulated to ensure an immunological balance. As microRNAs (miRNAs) are critical regulators of signaling pathways, we aimed to identify specific miRNAs implicated in controlling Th17 differentiation. We were able to create a regulatory network model of murine Th cell differentiation by combining Affymetrix mRNA and miRNA arrays and in-silico analysis...
June 15, 2017: Immunology
https://www.readbyqxmd.com/read/28610956/upregulation-of-microrna-137-expression-by-slug-promotes-tumor-invasion-and-metastasis-of-non-small-cell-lung-cancer-cells-through-suppression-of-tfap2c
#8
Tzu-Hua Chang, Meng-Feng Tsai, Chien-Hung Gow, Shang-Gin Wu, Yi-Nan Liu, Yih-Leong Chang, Sung-Liang Yu, Hsing-Chen Tsai, Shih-Wen Lin, Yen-Wei Chen, Po-Yen Kuo, Pan-Chyr Yang, Jin-Yuan Shih
The epithelial-mesenchymal transition (EMT) regulator, Slug, plays multifaceted roles in controlling lung cancer progression, but its downstream targets and mechanisms in promoting lung cancer progression have not been well defined. In particular, the miRNAs downstream of Slug in non-small cell lung cancer (NSCLC) remain undetermined. Here, we report that miR-137 is downstream of the EMT regulator, Slug, in lung cancer cells. Slug binds directly to the E-box of the miR-137 promoter and up-regulates its expression in lung cancer cells...
June 10, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28606918/evaluation-of-tumor-derived-exosomal-mirna-as-potential-diagnostic-biomarkers-for-early-stage-non-small-cell-lung-cancer-using-next-generation-sequencing
#9
Xiance Jin, Yanfan Chen, Hanbin Chen, Shaoran Fei, Didi Chen, Xiaona Cai, Linger Liu, Baochai Lin, Huafang Su, Lihao Zhao, Meng Su, Huanle Pan, Lanxiao Shen, Deyao Xie, Congying Xie
<br />To identify tumor-derived exosomal biomarkers that are able to discriminate between adenocarcinoma (AC) and squamous cell carcinoma (SCC) as a non-invasive method in the early diagnosis of non-small-cell lung cancer (NSCLC). <br /><br />Experimental Design: <br />Tumor-derived exosomes from the plasma of early stage NSCLC patients were isolated. Exosomal miRNA profiling of 46 stage I NSCLC patients and 42 healthy individuals was performed using miRNA-seq to identify and validate AC- and SCC-specific miRNAs...
June 12, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28606793/mir-20b-inhibits-mycobacterium-tuberculosis-induced-inflammation-in-the-lung-of-mice-through-targeting-nlrp3
#10
Jun Lou, Yongli Wang, Zhimin Zhang, Weiqiang Qiu
Tuberculosis (TB) is one of immune-related disorders. Although dysregulation of miRNAs has been implicated in innate and adaptive immune response, the specific effect of miR-20b on TB has not been documented. In this study, downregulation of miR-20b and upregulation of NLRP3 were observed in macrophages of TB patients, increased levels of inflammatory factors secretion were observed in serum of TB patients. Next, we established a TB mice model by using M. tuberculosis infection and intravenous injection of miR-20b mimic...
June 9, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28606154/microrna-1296-inhibits-metastasis-and-epithelial-mesenchymal-transition-of-hepatocellular-carcinoma-by-targeting-srpk1-mediated-pi3k-akt-pathway
#11
Qiuran Xu, Xin Liu, Zhikui Liu, Zhenyu Zhou, Yufeng Wang, Jianfeng Tu, Lijie Li, Hangxing Bao, Liu Yang, Kangsheng Tu
BACKGROUND: Increasing evidences demonstrate that miRNAs contribute to development and progression of hepatocellular carcinoma (HCC). Underexpression of miR-1296 is recently reported to promote growth and metastasis of human cancers. However, the expression and role of miR-1296 in HCC remain unknown. METHODS: The levels of miR-1296 in HCC tissues and cells were detected by qRT-PCR. Immunoblotting and immunofluorescence were used for detection of epithelial-to-mesenchymal transition (EMT) progression in HCC cells...
June 12, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28605875/mir-1254-promotes-lung-cancer-cell-proliferation-by-targeting-sfrp1
#12
Hong Li, Tian Yang, Dong Shang, Zhongmin Sun
Lung cancer is the leading cause of cancer deaths worldwide, many miRNAs play critical role in lung cancer initiation and progression. Here, we demonstrated that miR-1254 was upregulated in lung cancer tissues and cells. miR-1254 overexpression promoted lung cancer cell proliferation determined by MTT assay, colony formation assay, soft agar growth ability assay and BrdU incorporation assay, miR-1254 knockdown suppressed lung cancer cell proliferation. Mechanism analysis revealed that Wnt/β-catenin pathway antagonist secreted frizzled related protein 1 (SFRP1) was its target, its expression was opposite to SFRP1 level, and directly bound to the 3'UTR of SFRP1...
June 8, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28602756/antrodia-cinnamomea-sensitizes-radio-chemo-therapy-of-cancer-stem-like-cells-by-modulating-microrna-expression
#13
Yu-Kai Su, Ping-Hsiao Shih, Wei-Hwa Lee, Oluwaseun Adebayo Bamodu, Alexander T H Wu, Chun-Chih Huang, Yew-Min Tzeng, Michael Hsiao, Chi-Tai Yeh, Chien-Min Lin
ETHNOPHARMACOLOGICAL RELEVANCE: The discovery of many tissue-specific cancer stem cells (CSCs) continues to attract scientific attention. These CSCs are considered to be associated with chemo- and radio-resistance, and consequently, failure of conventional anticancer therapies. The recent demonstration of several microRNAs as enhancers of tumorigenicity via modulation of epithelial-mesenchymal transition and cancer stemness, makes them putative novel therapeutic target in oncology. Antrodia cinnamomea is a Chinese traditional medicine with several biological functions including anti-inflammation, antioxidant, and cancer prevention...
June 8, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28599420/gene-and-mirna-expression-profiles-of-mouse-lewis-lung-carcinoma-llc1-cells-following-single-or-fractionated-dose-irradiation
#14
Vaidotas Stankevicius, Karolina Kuodyte, Diana Schveigert, Danute Bulotiene, Tomas Paulauskas, Kristina Daniunaite, Kestutis Suziedelis
In clinical practice ionizing radiation (IR) is primarily applied to cancer treatment in the form of fractionated dose (FD) irradiation. Despite this fact, a substantially higher amount of current knowledge in the field of radiobiology comes from in vitro studies based on the cellular response to single dose (SD) irradiation. In addition, intrinsic and acquired resistance to IR remains an issue in clinical practice, leading to radiotherapy treatment failure. Numerous previous studies suggest that an improved understanding of the molecular processes involved in the radiation-induced DNA damage response to FD irradiation could improve the effectiveness of radiotherapy...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28599409/genomic-analysis-of-drug-resistant-small-cell-lung-cancer-cell-lines-by-combining-mrna-and-mirna-expression-profiling
#15
Yitian Chen, Xiang Yang, Yichen Xu, Jiongrui Cao, Longbang Chen
Etoposide (VP16) combined with cisplatin (DDP), as the first-line chemotherapy for small cell lung cancer (SCLC), regularly confers drug resistance. The present study applied complementary (c)DNA and micro (mi)RNA microarray to identify gene and miRNA expression profiles associated with multidrug resistance (MDR) in SCLC. The VP16/DDP (VP16 combined with DDP) resistant SCLC H446/EP cell line was derived from the parental H446 cell line by continuous exposure to increasing concentrations of etoposide and cisplatin...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28599307/morin-promotes-prostate-cancer-cells-chemosensitivity-to-paclitaxel-through-mir-155-gata3-axis
#16
Bin Li, Xunbo Jin, Huilin Meng, Bo Hu, Tao Zhang, Jiang Yu, Shaoan Chen, Xudong Guo, Weiguo Wang, Wei Jiang, Jin Wang
Paclitaxel is a first-line microtubule-stabilizing drug in treating prostate cancer. However, most patients develop resistance and experience relapse. Morin (3,5,7,20,40-pentahydroxyflavone) is an anti-tumor flavonoid in a numerous types of cancer cells including breast, ovarian and lung cancers. We therefore researched the effects of morin as an adjuvant to paclitaxel in in treating DU145 and PC-3 cells in vitro and DU145 derived prostate cancers in nude mice models. The chemosensitivities of these cells to the treatments of morin and paclitaxel were tested through viability assays utilizing cell counting kit 8 (CCK-8) and apoptosis assays through flow cytometry analyses...
May 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28595637/exosome-mir-371b-5p-promotes-proliferation-of-lung-alveolar-progenitor-type-ii-cells-by-using-pten-to-orchestrate-the-pi3k-akt-signaling
#17
Yuan Quan, Zhaohua Wang, Ling Gong, Xinmiao Peng, Melissa A Richard, Junlan Zhang, Myriam Fornage, Joseph L Alcorn, Dachun Wang
BACKGROUND: Pathways directing endogenous stem/progenitor cells to restore normal architecture and function of damaged/diseased lungs remain underexplored. Published data have revealed that alveolar progenitor type II cell (ATIIC)-derived signaling promotes re-epithelialization of injured alveoli, yet the underlying mechanism is unknown. Here we aim to define the role of ATIIC-derived exosome miRNA signaling in controlling ATIIC-specific proliferation or differentiation in response to injury...
June 8, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28593908/circulating-cell-free-micrornas-as-clinical-cancer-biomarkers
#18
REVIEW
Virginie Armand-Labit, Anne Pradines
MicroRNAs (miRNAs) are non-coding small RNAs that are master regulators of genic expression and consequently of many cellular processes. But their expression is often deregulated in human tumors leading to cancer development. Recently miRNAs were discovered in body fluids (serum, plasma and others) and their levels have often been reported to be altered in patients. Circulating miRNAs became one of the most promising biomarkers in oncology for early diagnosis, prognosis and therapeutic response prediction. Here we describe the origins and roles of miRNAs, and summarize the most recent studies focusing on their usefulness as cancer biomarkers in lung, breast, colon, prostate, ovary cancers and melanoma...
April 27, 2017: Biomolecular Concepts
https://www.readbyqxmd.com/read/28589873/human-cytomegalovirus-micrornas-are-carried-by-virions-and-dense-bodies-and-are-delivered-to-target-cells
#19
Abdul-Aleem Mohammad, Helena Costa, Natalia Landázuri, Weng-Onn Lui, Kjell Hultenby, Afsar Rahbar, Koon-Chu Yaiw, Cecilia Söderberg-Nauclér
Human cytomegalovirus (HCMV) infection results in the production of virions, dense bodies (DBs) and non-infectious enveloped particles, all of which incorporate proteins and RNAs that can be transferred to host cells. Here, we investigated whether virions and DBs also carry microRNAs (miRNAs) and assessed their delivery and functionality in cells. Human lung fibroblasts (MRC-5) were infected with the HCMV strain AD169, and conditioned cell culture medium was collected and centrifuged. The pellets were treated with RNase-ONE, and the virions and DBs were purified with a potassium tartrate-glycerol gradient and dialysed...
May 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28587405/mirna-186-inhibits-prostate-cancer-cell-proliferation-and-tumor-growth-by-targeting-yy1-and-cdk6
#20
Shu Lu, Ming-Shan Wang, Pei-Jie Chen, Qiang Ren, Peiming Bai
microRNAs (miRNAs) are known to be important in tumor initiation and progression. Recent studies have demonstrated that miR-186 is critical in several types of cancer, including human non-small cell lung cancer, bladder cancer and pancreatic ductal adenocarcinoma. However, the functions of miR-186 in prostate cancer (PCa) are still unclear. In the present study, downregulation of miR-186 in PCa cells was detected when compared with the normal prostate cell line. When miR-186 overexpressed in PCa cells, cell proliferation in vitro was evidently inhibited as shown using cell counting kit-8 assays and cell-cycle analysis, and tumor growth in vivo was decreased as shown by tumor growth assays in nude mice...
June 2017: Experimental and Therapeutic Medicine
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