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Daja Šekoranja, Emanuela Boštjančič, Vladka Salapura, Blaž Mavčič, Jože Pižem
Aneurysmal bone cyst (ABC) is a benign but locally aggressive, mostly pediatric neoplasm, with characteristic USP6 gene rearrangement that distinguishes it from a secondary ABC and other primary bone tumors. With the advent of next-generation sequencing (NGS) technology, several hitherto unknown USP6 fusion partners have been identified in ABC. Accordingly, we present a case of an 18-year-old male with a solid sub-periosteal primary ABC in the diaphysis of the left femur. Using an NGS-based assay, we identified SPARC-USP6 fusion, which has not previously been described in ABC...
December 2018: Cancer Genetics
Giovanni A M Povoleri, Estefania Nova-Lamperti, Cristiano Scottà, Giorgia Fanelli, Yun-Ching Chen, Pablo D Becker, Dominic Boardman, Benedetta Costantini, Marco Romano, Polychronis Pavlidis, Reuben McGregor, Eirini Pantazi, Daniel Chauss, Hong-Wei Sun, Han-Yu Shih, David J Cousins, Nichola Cooper, Nick Powell, Claudia Kemper, Mehdi Pirooznia, Arian Laurence, Shahram Kordasti, Majid Kazemian, Giovanna Lombardi, Behdad Afzali
Repair of tissue damaged during inflammatory processes is key to the return of local homeostasis and restoration of epithelial integrity. Here we describe CD161+ regulatory T (Treg ) cells as a distinct, highly suppressive population of Treg cells that mediate wound healing. These Treg cells were enriched in intestinal lamina propria, particularly in Crohn's disease. CD161+ Treg cells had an all-trans retinoic acid (ATRA)-regulated gene signature, and CD161 expression on Treg cells was induced by ATRA, which directly regulated the CD161 gene...
December 2018: Nature Immunology
Dawei Chen, Jixue Zou, Zhenguo Zhao, Xiaodong Tang, Zhicheng Deng, Jingchao Jia, Shuanghai Liu
The thioredoxin domain containing proteins are a group of proteins involved in redox regulation and have been recently reported to be associated with tumor progression. However, the role of thioredoxin proteins in hepatocellular carcinoma (HCC) remains largely unknown. Here in our study, we demonstrated that thioredoxin domain containing protein 9 (TXNDC9) was over-expressed in HCC and promoted HCC progression. We found that TXNDC9 expression was amplified in HCC tissues and associated with an advanced grade of HCC...
October 31, 2018: Cell Death & Disease
Yu Lian, Fang Xiong, Liting Yang, Hao Bo, Zhaojian Gong, Yumin Wang, Fang Wei, Yanyan Tang, Xiayu Li, Qianjin Liao, Hui Wang, Ming Zhou, Bo Xiang, Xu Wu, Yong Li, Xiaoling Li, Xiang Chen, Guiyuan Li, Can Guo, Zhaoyang Zeng, Wei Xiong
BACKGROUND: Actin filament-associated protein 1 antisense RNA 1 (AFAP1-AS1), a long noncoding RNA, is significantly highly expressed and associated with metastasis and poor prognosis in many cancers, including nasopharyngeal carcinoma (NPC). In this study, we aim to identify the role of AFAP1-AS1 acting as an oncogenic lncRNA to promote NPC metastasis. METHODS: The role of AFAP1-AS1, miR-423-5p, and FOSL2 in NPC metastasis was investigated in vitro and in vivo. Bioinformatics analysis and luciferase activity assays were used to identify the interaction between AFAP1-AS1, miR-423-5p, and FOSL2...
October 16, 2018: Journal of Experimental & Clinical Cancer Research: CR
V Praveen Chakravarthi, Vincentaben Khristi, Subhra Ghosh, Sireesha Yerrathota, Eddie Dai, Katherine F Roby, Michael W Wolfe, M A Karim Rumi
Hypothalamic expression of Kiss1 plays an essential role in the onset of puberty, gonadal development, and ovulation. Estrogens regulate the expression of Kiss1 in the hypothalamus through estrogen receptor-α. Kiss1 is also expressed in the ovary, where its expression correlates with the onset of puberty and progression of the estrous cycle. To date, estrogen regulation of Kiss1 expression in the ovary has not been investigated. We recently observed that gonadotropin-induced Kiss1 expression was absent in Esr2-null rat ovaries even though Esr1 was present...
November 1, 2018: Endocrinology
Shuo Li, Xue-Dong Fang, Xiu-Ying Wang, Bing-Yuan Fei
Among different cancers, incidence and mortality of colorectal cancer (CRC) is one of the highest. KRAS mutation is one of the underlying features in the pathogenesis of CRC with CRC tumors harboring mutant KRAS exhibiting a more aggressive behavior compared to CRC tumors with wild type KRAS. We had earlier shown that the microRNA-143 (miR-143) replenishment not only chemosensitizers CRC cell line with mutant KRAS instead of wild-type KRAS gene, to paclitaxel-mediated cytotoxicity, but also inhibits cell migration and invasion ability...
August 13, 2018: Experimental Cell Research
Lu Sun, Zhixian Guo, Jihong Sun, Jingjing Li, Zihui Dong, Yize Zhang, Jianan Chen, Quancheng Kan, Zujiang Yu
Hepatocellular carcinoma (HCC), one of the most common maligant cancers in the world, is difficult to diagnose in the early time. MicroRNAs (miRNAs), small non-coding RNAs, perform vital functions in cellular differentiation, metabolism and physiological processes. MiR-133a acts as a tumor suppressor in breast, lung and gastric cancer, while the molecular circadian mechanism has not been clear in HCC. In the present study, we certified that the expression of miR-133a decreased in HCC tissues and cell lines and that miR-133a inhibited proliferation, migration and invasion of hepatocellular carcinoma cells...
November 2018: Biomedicine & Pharmacotherapy
K M Fisch, R Gamini, O Alvarez-Garcia, R Akagi, M Saito, Y Muramatsu, T Sasho, J A Koziol, A I Su, M K Lotz
OBJECTIVE: Osteoarthritis (OA) is the most prevalent joint disease. As disease-modifying therapies are not available, novel therapeutic targets need to be discovered and prioritized for their importance in mediating the abnormal phenotype of cells in OA-affected joints. Here, we generated a genome-wide molecular profile of OA to elucidate regulatory mechanisms of OA pathogenesis and to identify possible therapeutic targets using integrative analysis of mRNA-sequencing data obtained from human knee cartilage...
November 2018: Osteoarthritis and Cartilage
Zheng Yang, Zhuying Wei, Xia Wu, Huidi Yang
Exosomal micro (mi)RNAs have been suggested to have important roles in abdominal obesity, and to be associated with metabolic alterations via posttranscriptional regulation of target genes. However, exosomal miRNA profiles in subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT) have rarely been investigated. In the present study, microarray data were obtained from the Gene Expression Omnibus database with the following accession numbers: GSE68885 (exosomal miRNAs in SAT obtained from seven patients with obesity and five lean patients), GSE50574 (exosomal miRNAs in VAT obtained from seven patients with obesity and five lean patients) and GSE29718 [mRNAs in SAT (obtained from seven patients with obesity and eight lean patients) and VAT (obtained from three patients with obesity and two lean patients)]...
September 2018: Molecular Medicine Reports
Aimy Sebastian, Nicholas R Hum, Cesar Morfin, Deepa K Murugesh, Gabriela G Loots
Wnt16 is a major Wnt ligand involved in the regulation of postnatal bone homeostasis. Previous studies have shown that Wnt16 promotes bone formation and inhibits bone resorption, suggesting that this molecule could be targeted for therapeutic interventions to treat bone thinning disorders such as osteoporosis. However, the molecular mechanisms by which Wnt16 regulates bone metabolism is not yet fully understood. To better understand the molecular mechanisms by which Wnt16 promotes bone formation and to identify the target genes regulated by Wnt16 in osteoblasts, we treated calvarial osteoblasts purified from C57Bl/6 mice with recombinant Wnt16 and profiled the gene expression changes by RNA-seq at 24 h post-treatment...
October 30, 2018: Gene
X Zhang, Y Bu, B Zhu, Q Zhao, Z Lv, B Li, J Liu
Objectives: The aim of this study was to identify key pathological genes in osteoarthritis (OA). Methods: We searched and downloaded mRNA expression data from the Gene Expression Omnibus database to identify differentially expressed genes (DEGs) of joint synovial tissues from OA and normal individuals. Gene Ontology (GO) and Kyoto Encyclopaedia of Genes and Genomes (KEGG) pathway analyses were used to assess the function of identified DEGs. The protein-protein interaction (PPI) network and transcriptional factors (TFs) regulatory network were used to further explore the function of identified DEGs...
April 2018: Bone & Joint Research
Sanket Kumar Shukla, Kunal Sikder, Amrita Sarkar, Sankar Addya, Khadija Rafiq
The molecular pathways activated in response to acute cathepsin G (CG) exposure, as well as the mechanisms involved in activation of signaling pathways that culminate in myocyte detachment and apoptosis remain unclear. This study aimed to determine the changes in gene expression patterns associated with time dependent CG exposure to neonatal rat cardiomyocytes (NRCMs). Microarray analysis revealed a total of 451, 572 and 1127 differentially expressed genes after CG exposure at 1, 4 and 8 h respectively. A total of 54 overlapped genes at each time point were mapped by Ingenuity Pathway Analysis (IPA)...
May 30, 2018: Gene
Lan Ling, Shan-Hong Zhang, Li-Da Zhi, Hong Li, Qian-Kuan Wen, Gang Li, Wen-Jia Zhang
INTRODUCTION: Hepatocyte proliferation and apoptosis are critical cellular behaviors in rat liver as a result of a liver injury. Herein, we performed this study in order to evaluate the role of miR-30e and its target Fos-Related Antigen-2 (FOSL2) in septic rats through the JAK/STAT signaling pathway. METHODS: Rat models of sepsis were induced by cecal ligation and puncture. Enzyme-linked immunosorbent assay (ELISA) was performed to access serum levels of lipopolysaccharide (LPS), inflammatory factors, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) to confirm the successful establishment of the model...
August 2018: Biomedicine & Pharmacotherapy
Erietta Stelekati, Zeyu Chen, Sasikanth Manne, Makoto Kurachi, Mohammed-Alkhatim Ali, Keith Lewy, Zhangying Cai, Kito Nzingha, Laura M McLane, Jennifer L Hope, Adam J Fike, Peter D Katsikis, E John Wherry
Persistent viral infections and tumors drive development of exhausted T (TEX ) cells. In these settings, TEX cells establish an important host-pathogen or host-tumor stalemate. However, TEX cells erode over time, leading to loss of pathogen or cancer containment. We identified microRNA (miR)-155 as a key regulator of sustained TEX cell responses during chronic lymphocytic choriomeningitis virus (LCMV) infection. Genetic deficiency of miR-155 ablated CD8 T cell responses during chronic infection. Conversely, enhanced miR-155 expression promoted expansion and long-term persistence of TEX cells...
May 15, 2018: Cell Reports
Brenda J Mengeling, Michael L Goodson, J David Furlow
Appropriate thyroid hormone (TH) signaling through thyroid hormone receptors (TRs) is essential for vertebrate development. Amphibian metamorphosis is initiated and sustained through the action of TH on TRs, which are conserved across vertebrates. TRs heterodimerize with retinoid X receptors (RXRs) on thyroid hormone response elements (TREs) in the genome; however, in most cell line and adult animal studies, RXR ligands do not affect expression of TR target genes. We used a quantitative, precocious metamorphosis assay to interrogate the effects of the RXR agonist bexarotene (Bex) and the RXR antagonist UVI 3003 (UVI) on T3-induced resorption phenotypes in Xenopus laevis tadpoles 1 week postfertilization...
July 1, 2018: Endocrinology
Manuel A R Ferreira, Judith M Vonk, Hansjörg Baurecht, Ingo Marenholz, Chao Tian, Joshua D Hoffman, Quinta Helmer, Annika Tillander, Vilhelmina Ullemar, Yi Lu, Franz Rüschendorf, David A Hinds, Norbert Hübner, Stephan Weidinger, Patrik K E Magnusson, Eric Jorgenson, Young-Ae Lee, Dorret I Boomsma, Robert Karlsson, Catarina Almqvist, Gerard H Koppelman, Lavinia Paternoster
BACKGROUND: A recent genome-wide association study (GWAS) identified 99 loci that contain genetic risk variants shared between asthma, hay fever, and eczema. Many more risk loci shared between these common allergic diseases remain to be discovered, which could point to new therapeutic opportunities. OBJECTIVE: We sought to identify novel risk loci shared between asthma, hay fever, and eczema by applying a gene-based test of association to results from a published GWAS that included data from 360,838 subjects...
April 19, 2018: Journal of Allergy and Clinical Immunology
Xiangran Sun, Guo Dai, Ling Yu, Qingzhu Hu, Jingteng Chen, Weichun Guo
Osteosarcoma (OS) is the most common type of primary malignant bone tumor and mainly occurs in children and adolescent. Because of its early migration and invasion, OS has a poor prognosis. It has been reported that mircoRNAs (miRNAs) play a crucial role in the occurrence and development of multiple tumors. In this study, we identified the aberrant-expression of miR-143-3p in osteosarcoma and examined the role of miR-143-3p in OS development. Further, we searched the miR-143-3p target gene and verified its accuracy by luciferase experiments...
January 12, 2018: Scientific Reports
Shan Li, Amy Teegarden, Emily M Bauer, Jaewoo Choi, Nadia Messaddeq, David A Hendrix, Gitali Ganguli-Indra, Mark Leid, Arup K Indra
The epidermal permeability barrier (EPB) prevents organisms from dehydration and infection. The transcriptional regulation of EPB development is poorly understood. We demonstrate here that transcription factor COUP-TF-interacting protein 1 (CTIP1/BCL11A; hereafter CTIP1) is highly expressed in the developing murine epidermis. Germline deletion of Ctip1 (Ctip1-/- ) results in EPB defects accompanied by compromised epidermal differentiation, drastic reduction in profilaggrin processing, reduced lamellar bodies in granular layers and significantly altered lipid composition...
October 18, 2017: Scientific Reports
Jiangtu He, Jieying Mai, Yan Li, Linyi Chen, Hui Xu, Xiaofei Zhu, Qiuhui Pan
Many reports suggest that the discovery of microRNAs (miRNAs) might provide a novel therapeutical target for many diseases, even of human cancers; however, there are no reports on the role of miR-597 in human cancers. In the present study, by detecting mRNA expression with qRT-PCR, compared with the adjacent normal tissues we found that miR-597 was significantly downregulated in breast cancer tissues. By using the MTT assay, the cell wound-healing assay and the cell invasion assay, we demonstrated that miR-597 mimics were able to suppress breast cancer cell proliferation, migration and invasion...
May 2017: Oncology Reports
Jun Li, Siyuan Li, Ying Hu, Guolei Cao, Siyao Wang, Partab Rai, Xiaoli Wang, Kan Sun
Objective. We investigated the expression levels of both FOSL2 mRNA and protein as well as evaluating DNA methylation in the blood of type 2 diabetes mellitus (T2DM) Uyghur patients from Xinjiang. This study also evaluated whether FOSL2 gene expression had demonstrated any associations with clinical and biochemical indicators of T2DM. Methods. One hundred Uyghur subjects where divided into two groups, T2DM and nonimpaired glucose tolerance (NGT) groups. DNA methylation of FOSL2 was also analyzed by MassARRAY Spectrometry and methylation data of individual units were generated by the EpiTyper v1...
2016: Journal of Diabetes Research
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