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https://www.readbyqxmd.com/read/29224008/mirnas-mediate-gdnf-induced-proliferation-and-migration-of-glioma-cells
#1
Bao-Le Zhang, Fu-Lu Dong, Ting-Wen Guo, Xiao-He Gu, Lin-Yan Huang, Dian-Shuai Gao
BACKGROUND/AIMS: Glial cell line-derived neurotrophic factor (GDNF) is an important factor promoting invasive glioma growth. This study was performed to reveal a unique mechanism of glioma cell proliferation and migration. METHODS: Human U251 glioma cells were used to screen the optimal GDNF concentration and treatment time to stimulate proliferation and migration. MicroRNA (MiRNA) expression profiles were detected by microarray and confirmed by real-time polymerase chain reaction (PCR)...
December 8, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29222068/foetoplacental-communication-via-extracellular-vesicles-in-normal-pregnancy-and-preeclampsia
#2
REVIEW
Delia I Chiarello, Rocío Salsoso, Fernando Toledo, Alfonso Mate, Carmen M Vázquez, Luis Sobrevia
Intercellular communication is a critical process in biological mechanisms. During pregnancy foetoplacental tissues release a heterogeneous group of extracellular vesicles (EVs) that include exosomes, microvesicles, apoptotic bodies, and syncytial nuclear aggregates. These vesicles contain a complex cargo (proteins, DNA, mRNA transcripts, microRNAs, noncoding RNA, lipids, and other molecules) that actively participate in the maternal-foetal communication by modulating different processes during gestation for a successful foetal development...
December 5, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/29221169/targeting-pp2a-activates-ampk-signaling-to-inhibit-colorectal-cancer-cells
#3
Cuiping Dai, Xuning Zhang, Da Xie, Peipei Tang, Chunmei Li, Yi Zuo, Baofei Jiang, Caiping Xue
LB-100 is a novel PP2A inhibitor. Its activity in human colorectal cancer (CRC) cells was tested. The in vitro studies demonstrated that LB-100 inhibited survival and proliferation of both established CRC cells (HCT-116 and HT-29 lines) and primary human colon cancer cells. Further, LB-100 activated apoptosis and induced G1-S cell cycle arrest in CRC cells. LB-100 inhibited PP2A activity and activated AMPK signaling in CRC cells. AMPKα1 dominant negative mutation, shRNA-mediated knockdown or complete knockout (by CRISPR/Cas9 method) largely attenuated LB-100-induced AMPK activation and HCT-116 cytotoxicity...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29220380/hexokinase-2-hk2-the-tumor-promoter-in-glioma-is-downregulated-by-mir-218-bmi1-pathway
#4
Hui Liu, Nan Liu, Yingduan Cheng, Weilin Jin, Pengxing Zhang, Xin Wang, Hongwei Yang, Xiaoshan Xu, Zhen Wang, Yanyang Tu
In cancer, glycolysis driving enzymes and their regulating microRNAs are one of the key focus of oncology research lately. The glycolytic enzyme hexokinase 2 (HK2) is crucial for the Warburg effect in human glioma, the most common malignant brain tumor. In the present study, we studied the tumorigenic role of HK2 in glioma, and clarified the mechanism of miR-218 induced HK2 regulation in glioma development. The HK2 expression in patient derived glioma and non neoplastic brain tissue was quantified. The HK2 silenced U87 and U251 cell lines were assessed for their proliferation, migration and invasive potential in vitro, while the tumor forming potential of U87 cells was evaluated in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/29212859/human-hair-follicle-transcriptome-profiling-a-minimally-invasive-tool-to-assess-molecular-adaptations-upon-low-volume-high-intensity-interval-training
#5
Jing Zhang, Sarah J Wallace, Maria Y Shiu, Ingrid Smith, Shawn G Rhind, Valerie S Langlois
High-intensity interval training (HIIT) has become a popular fitness training approach under both civilian and military settings. Consisting of brief and intense exercise intervals, HIIT requires less time commitment yet is able to produce the consistent targeted physical adaptations as conventional endurance training. To effectively characterize and monitor HIIT-induced cellular and molecular responses, a highly accessible yet comprehensive biomarker discovery source is desirable. Both gene differential expression (DE) and gene set (GS) analyses were conducted using hair follicle transcriptome established from pre and postexercise subjects upon a 10-day HIIT program by RNA-Seq, Comparing between pre and posttraining groups, differentially expressed protein coding genes were identified...
December 2017: Physiological Reports
https://www.readbyqxmd.com/read/29212819/transcriptional-and-translational-dynamics-during-maternal-to-zygotic-transition-in-early-chicken-development
#6
Young Sun Hwang, Minseok Seo, Sohyun Bang, Heebal Kim, Jae Yong Han
Maternal-to-zygotic transition (MZT) is the critical process for the establishment of embryonic identity across vertebrates. During this period, the massive transcriptional activation, called zygotic genome activation (ZGA), is mediated by maternally stored factors, and maternal mRNA clearance by conserved zygotic microRNAs (miRNAs) occurs; however, the important transition in avian species was identified by morphologic perspectives only. In this study, we performed transcriptome analysis to examine the molecular transitions of intrauterine development in chickens...
December 6, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29212817/casr-signaling-down-regulates-aqp2-expression-via-a-novel-microrna-pathway-in-pendrin-and-nacl-cotransporter-knockout-mice
#7
Marianna Ranieri, Kamyar Zahedi, Grazia Tamma, Mariangela Centrone, Annarita Di Mise, Manoocher Soleimani, Giovanna Valenti
High concentrations of urinary calcium counteract vasopressin action via the activation of the calcium-sensing receptor (CaSR) that is expressed in the luminal membrane of collecting duct cells, which impairs the trafficking of aquaporin-2 (AQP2). Pendrin/NaCl cotransporter double-knockout (dKO) mice display significant calcium wasting and develop severe volume depletion, despite increased circulating vasopressin levels. We hypothesized that the CaSR-mediated impairment of AQP2 expression/trafficking underlies vasopressin resistance in dKO mice...
December 6, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29212172/safflor-yellow-b-reduces-hypoxia-mediated-vasoconstriction-by-regulating-endothelial-micro-ribonucleic-acid-nitric-oxide-synthase-signaling
#8
Chaoyun Wang, Ying Yang, Miao Li, Xin Liu, Qiaoyun Wang, Wenyu Xin, Hongliu Sun, Qingyin Zheng
Hypoxia-induced generation of vasoconstrictors reduces cerebral blood flow (CBF) while nitric oxide (NO) synthase (NOS) and microRNAs (miRNA) in endothelial cells (ECs) suppress vasoconstriction. Safflor yellow B (SYB), a natural plant compound, previously attenuated angiotensin II-mediated injury of ECs and maintained endothelial function. This study investigated the putative involvement of NOS and miRNAs in SYB-mediated resistance to hypoxia-induced vasoconstriction. In vivo, chronic hypoxia was induced in rats, and SYB was administered intravenously...
November 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/29209166/mir-145-5p-nurr1-tnf-%C3%AE-signaling-induced-microglia-activation-regulates-neuron-injury-of-acute-cerebral-ischemic-reperfusion-in-rats
#9
Xuemei Xie, Li Peng, Jin Zhu, Yang Zhou, Lingyu Li, Yanlin Chen, Shanshan Yu, Yong Zhao
Nurr1 is a member of the nuclear receptor 4 family of orphan nuclear receptors that is decreased in inflammatory responses and leads to neurons death in Parkinson's disease. Abnormal expression of Nurr1 have been attributed to various signaling pathways, but little is known about microRNAs (miRNAs) regulation of Nurr1 in ischemia/reperfusion injury. To investigate the post transcriptional regulatory networks of Nurr1, we used a miRNA screening approach and identified miR-145-5p as a putative regulator of Nurr1...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29208670/inhibition-of-id1-bmpr2-intrinsic-signaling-sensitizes-glioma-stem-cells-to-differentiation-therapy
#10
Xiong Jin, Xun Jin, Leo J Y Kim, Deobrat Dixit, Hee-Young Jeon, Eun-Jung Kim, Jun-Kyum Kim, Seon Yong Lee, Jinlong Yin, Jeremy N Rich, Hyunggee Kim
PURPOSE: Normal stem cells tightly control self-renewal and differentiation during development, but their neoplastic counterparts, cancer stem cells (CSCs), sustain tumorigenicity both through aberrant activation of stemness and evasion of differentiation. Although regulation of CSC stemness has been extensively studied, the molecular mechanisms suppressing differentiation remain unclear. EXPERIMENTAL DESIGN: We performed in silico screening and in vitro validation studies through western blotting, q-RT-PCR for treatment of WNT and SHH signaling inhibitors and BMP signaling inducer with control and ID1-overexpressing cells...
December 5, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29208566/mir-26a-and-mir-26b-mediate-osteoarthritis-progression-by-targeting-fut4-via-nf-%C3%AE%C2%BAb-signaling-pathway
#11
Jialei Hu, Zi Wang, Yue Pan, Jia Ma, Xiaoyan Miao, Xia Qi, Huimin Zhou, Li Jia
Osteoarthritis (OA) is the most common joint disease, characterized by articular cartilage degradation and changes in all other joint tissues. MicroRNAs (miRNAs) play an important role in mediating the main risk factors for OA. This study aimed to investigate the effect of miR-26a/26b on the proliferation and apoptosis of human chondrocytes by targeting fucosyltransferase 4 (FUT4) through NF-κB signaling pathway. We revealed the differential expression profiles of FUT4 and miR-26a/26b in the articular cartilage tissues of OA patients and normal people...
December 2, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29207475/function-of-micrornas-in-the-osteogenic-differentiation-and-therapeutic-application-of-adipose-derived-stem-cells-ascs
#12
REVIEW
Walter M Hodges, Frederick O'Brien, Sadanand Fulzele, Mark W Hamrick
Traumatic wounds with segmental bone defects represent substantial reconstructive challenges. Autologous bone grafting is considered the gold standard for surgical treatment in many cases, but donor site morbidity and associated post-operative complications remain a concern. Advances in regenerative techniques utilizing mesenchymal stem cell populations from bone and adipose tissue have opened the door to improving bone repair in the limbs, spine, and craniofacial skeleton. The widespread availability, ease of extraction, and lack of immunogenicity have made adipose-derived stem cells (ASCs) particularly attractive as a stem cell source for regenerative strategies...
December 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29207102/lncrna-tug1-serves-an-important-role-in-hypoxia-induced-myocardial-cell-injury-by-regulating-the-mir%C3%A2-145%C3%A2-5p%C3%A2-binp3-axis
#13
Zhongwei Wu, Shengji Zhao, Chunfu Li, Chaoquan Liu
The aim of the present study was to investigate the function of long non‑coding RNA TUG1 in hypoxia‑induced myocardial cell injury and to explore the potential molecular mechanisms. The cardiomyocyte cell line H9c2 was cultured under hypoxic and normoxic conditions. TUG1 expression under hypoxic conditions was then detected. The effects of TUG1 overexpression on viability, apoptosis, migration and invasion were assayed. In addition, the microRNA (miR)‑145‑5p expression was detected. Following H9c2 cell transfection with miR‑145‑5p mimics, the H9c2 cell viability, apoptosis, migration and invasion were also detected...
November 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29203905/rainbow-trout-exposed-to-benzo-a-pyrene-yields-conserved-microrna-binding-sites-in-dna-methyltransferases-across-500-million-years-of-evolution
#14
Christopher Kuc, Daniel J Richard, Samantha Johnson, Leslie Bragg, Mark R Servos, Andrew C Doxey, Paul M Craig
The objective of this study was to examine the regulation of DNA methylation following acute (24 h) and prolonged (14 d) exposure to low (1 ng/L) and high (10 ng/L) benzo[a]pyrene. However, with the recent release of the rainbow trout genome, we were able to conduct a more detailed analysis regarding the regulation of the enzymes involved in DNA methylation; DNA methyltransferases (DNMTs). Bioinformatic approaches were used to identify candidate microRNA (miRNA) that potentially bind to the DNMT1 and DNMT3a 3'UTR...
December 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29197574/endothelial-microparticles-mediated-transfer-of-microrna-19b-promotes-atherosclerosis-via-activating-perivascular-adipose-tissue-inflammation-in-apoe-mice
#15
Changlong Li, Sufang Li, Feng Zhang, Manyan Wu, Huizhu Liang, Junxian Song, Chongyou Lee, Hong Chen
Microparticles(MPs) are the major carriers of circulating microRNAs. Our previous study has shown that microRNA (miR)-19b in endothelial cell-derived microparticles (EMPs) is significantly increased in patients with unstable angina. However, little is known about the relationship between miR-19b in EMPs and the progression of atherosclerosis. The aim of the present study was to define the role and potential mechanism of miR-19b incorporated in EMPs in the development of atherosclerosis. Western-diet-fed apoE-/- mice were injected with phosphate buffered solution(PBS), EMP carrying microRNA control(EMPcontrol) or miR-19b mimic (EMPmiR19b) intravenously...
November 29, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29196461/mirna-suppression-of-a-notch-repressor-directs-non-neuronal-fate-in-drosophila-mechanosensory-organs
#16
Joshua Kavaler, Hong Duan, Rajaguru Aradhya, Luis F de Navas, Brian Joseph, Boris Shklyar, Eric C Lai
Although there is abundant evidence that individual microRNA (miRNA) loci repress large cohorts of targets, large-scale knockout studies suggest that most miRNAs are phenotypically dispensable. Here, we identify a rare case of developmental cell specification that is highly dependent on miRNA control of an individual target. We observe that binary cell fate choice in the Drosophila melanogaster peripheral sensory organ lineage is controlled by the non-neuronally expressed mir-279/996 cluster, with a majority of notum sensory organs exhibiting transformation of sheath cells into ectopic neurons...
December 1, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/29194430/human-cytomegalovirus-encoded-mir-us25-1-5p-attenuates-cd147-emmprin-mediated-early-antiviral-response
#17
Jun Chen, Sisi Xia, Xiangmin Yang, Huizi Chen, Fanni Li, Fenyong Liu, Zhinan Chen
Cellular receptor-mediated signaling pathways play critical roles during the initial immune response to Human Cytomegalovirus (HCMV) infection. However, the involvement of type-I transmembrane glycoprotein CD147/EMMPRIN (extracellular matrix metalloproteinase inducer) in the antiviral response to HCMV infection is still unknown. Here, we demonstrated the specific knockdown of CD147 significantly decreased HCMV-induced activation of NF-κB and Interferon-beta (IFN-β), which contribute to the cellular antiviral responses...
December 1, 2017: Viruses
https://www.readbyqxmd.com/read/29191961/intragraft-molecular-pathways-associated-with-tolerance-induction-in-renal-transplantation
#18
Lorenzo Gallon, James M Mathew, Sai Vineela Bontha, Catherine I Dumur, Pranav Dalal, Lakshmi Nadimpalli, Daniel G Maluf, Aneesha A Shetty, Suzanne T Ildstad, Joseph R Leventhal, Valeria R Mas
The modern immunosuppression regimen has greatly improved short-term allograft outcomes but not long-term allograft survival. Complications associated with immunosuppression, specifically nephrotoxicity and infection risk, significantly affect graft and patient survival. Inducing and understanding pathways underlying clinical tolerance after transplantation are, therefore, necessary. We previously showed full donor chimerism and immunosuppression withdrawal in highly mismatched allograft recipients using a bioengineered stem cell product (FCRx)...
November 30, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29190966/microrna-21-inhibits-mitochondria-mediated-apoptosis-in-keloid
#19
Hao Wu, Jie Wang, Hui Ma, Zhibo Xiao, Xiaoqun Dong
MicroRNA-21 acts as an oncogene by promoting cell proliferation and migration, whereas inhibiting apoptosis in majority of cancers. MicroRNA-21 is upregulated in human keloid fibroblasts. We hypothesized that microRNA-21 may contribute to pathogenesis of keloid fibroblasts. First, enhanced miR-21 but reduced mitochondrial-mediated apoptosis observed in keloid tissues indicated its importance in keloids development. Second, upregulation of microRNA-21 induced a decrease in the ratio of BAX to BCL-2 and suppressed mitochondrial fission in keloid fibroblasts...
November 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29189128/curcumin-as-an-adjunct-therapy-and-microrna-modulator-in-breast-cancer
#20
Saeed Norouzi, Muhammed Majeed, Matteo Pirro, Daniele Generali, Amirhossein Sahebkar
BACKGROUND: Pathogenesis of breast cancer is paralleled by distinct alterations in the expression profile of several microRNAs (miRNAs). Recent studies have shown that miRNAs can serve as diagnostic and prognostic markers, and also as therapeutic targets in breast cancer. Curcumin is a biologically active dietary polyphenol that has emerged with strong anti-tumor properties that are also documented in breast cancer. METHODS: A multi-database electronic search was performed to provide an overview of curcumin as an adjunct therapy and miRNA modulator in breast cancer and highlight the significance of observations for the treatment of cancer therapies...
November 29, 2017: Current Pharmaceutical Design
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