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https://www.readbyqxmd.com/read/29236331/reduction-of-histone-marks-h3k9me3-and-h3k27me3-by-epidrug-induces-neuroendocrine-differentiation-in-prostate-cancer
#1
Eunsohl Lee, Jingcheng Wang, Younghun Jung, Frank C Cackowski, Russell S Taichman
Neuroendocrine prostate cancer (NE PCa) is an aggressive malignancy, often presenting with advanced metastasis. We previously reported that reduction of histone marks regulated by DNMT1 following epidrug (5-Azacitidine, 5-Aza) treatment controls induction of epithelial to mesenchymal (EMT) and a cancer stem cell (CSC) phenotype, which facilitates tumorigenesis in PCa cells. Here, we use the epidrug 5-Aza as a model for how histone marks may regulate the reprogramming of prostate adenocarcinoma into NE phenotypic cells...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236328/mirnalet-7a-mediates-prostate-cancer-pc-3-cell-invasion-migration-by-inducing-epithelial-mesenchymal-transition-through-ccr7-mapk-pathway
#2
Tang Guanlin, Du Ruoyang, Tang Zhaobing, Kuang Youlin
Prostate cancer is one of the most common malignancies in older men. Recent evidence has demonstrated microRNA (miRNA) Let-7a expression decreased in prostate cancer, while the expression of C-C chemokine receptor type 7 (CCR7) increased. In this study, we investigated whether CCR7 overexpression was associated with a decrease in the expression of miRNA let-7a in invasion and metastasis of prostate cancer cell. Methods Synthetic let-7a mimics and let-7a inhibitors were transfected into prostate cancer PC-3 cells repectively...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236324/silencing-of-phospholipase-c-gamma-2-promotes-proliferation-of-rat-hepatocytes-in-vitro
#3
Xiaoguang Chen, Xuemin Zhu, Yumei Liu, Qiongxia Lv, Jun Ma
The management of hepatic failure is undoubtedly difficult, and poor results have led to the search for novel therapeutic approaches. Nowadays, anti-apoptotic gene therapy is considered as an ideal approach. It has been proved that phospholipase Cγ2 (PLCγ2) is involved in the apoptosis of immune cells and tumor cells; however, whether this gene is related to hepatocyte death is still unclear. This study examined the role of PLCγ2 by inhibiting its expression in rat hepatocytes with siRNA. We also further analyzed the cellular mechanism by which the expression inhibition of PLCγ2 induces cell death...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236322/microrna-383-suppresses-the-pi3k-akt-mtor-signaling-pathway-to-inhibit-development-of-cervical-cancer-via-down-regulating-parp2
#4
Peng Teng, Yan Jiao, Min Hao, Xin Tang
This study aims to evaluate the effect of the regulatory relationship between microRNA-383 (miR-383) and PARP2 in the cell migration and invasion in human with cervical cancer (CC) via the PI3K-AKT-MTOR signaling pathway. Cancerous tissues and corresponding paracancerous tissues were collected from 115 patients with CC. The positive expression rate of PARP2 was detected by immunohistochemistry. Hela cells with highest miR-383 expression were selected and assigned into the blank, negative control (NC), miR-383 mimic, miR-383 inhibitor, si-PARP2 and miR-383 inhibitor + si-PARP2 groups...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236321/murine-models-of-osteosarcoma-a-piece-of-the-translational-puzzle
#5
Mannu K Walia, Wilson Castillo-Tandazo, Anthony J Mutsaers, T John Martin, Carl R Walkley
Osteosarcoma (OS) is the most common cancer of bone in children and young adults. Despite extensive research efforts, there has been no significant improvement in patient outcome for many years. An improved understanding of the biology of this cancer and how genes frequently mutated contribute to OS may help improve outcomes for patients. Whilst our knowledge of the mutational burden of OS is approaching saturation, our understanding of how these mutations contribute to OS initiation and maintenance is less clear...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236320/analgesic-effects-of-microrna-129-5p-against-bone-cancer-pain-through-the-ephb1-ephrinb2-signaling-pathway-in-mice
#6
Shao-Nan Yu, Gui-Feng Liu, Long-Yun Li, Guo-Qing Zhao, Lin Liu, Xue-Feng Li
The study aims to investigate the analgesic effects of microRNA-129-5p (miR-129-5p) on bone cancer pain (BCP) by targeting Eph receptor B1 (EphB1) through the EphB1/EphrinB2 signaling pathway. BCP mice models were established, and C3H/HeJ female mice were classified into the normal, blank, negative control (NC), miR-129-5p mimics, miR-129-5p inhibitors, EphB1 knockout (KO), and miR-129-5p inhibitors + EphB1 KO groups. RT-qPCR and western blotting were used to evaluate miR-129-5p expression, and mRNA and protein expressions of EphB1, p-EphB1, EphrinB2 and p-EphrinB2...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236318/proliferation-and-apoptosis-of-rheumatoid-arthritis-fibroblast-like-synoviocytes-following-signal-transducer-and-activator-of-transcription-3-rna-interference-delivery
#7
Xuehui Sun, Yun Han, Ying Liu, Yanchun Tang, Jibo Wang
OBJECTIVE: In this study, we investigated the effects of delivering small interfering RNA (siRNA) for efficient STAT3 downregulation on propagation and apoptosis of rheumatoid arthritis fibroblast-like synoviocytes (RA-FLS). METHODS: The FLSs were transfected with three different siRNAs. RNAi-1 was selected for further experiments. The expression levels of both STAT3 mRNA and its protein were detected by RT-PCR and western blot. The proliferation of FLSs was examined by MTT assay...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236308/database-of-transcription-factors-in-lung-cancer-dbtflc-a-novel-resource-for-exploring-transcription-factors-associated-with-lung-cancer
#8
A Thabitha, Ameya Athul Dravid, Riya Tripathi, S Sajitha Lulu
Lung cancer is considered as the most prevalent form of cancer and it is found to be frequent cause of cancer related death. Even though, approved molecular targeted therapies other than chemotherapy are currently unavailable, the mechanism of pathogenesis in lung cancer remains still unclear. Transcription factors (TFs) play a critical role in cancer cell processes, such as cell proliferation, apoptosis, migration, and regulate gene expression. Thus, the identification and characterization of transcription factors involved in lung cancer would provide valuable information for further elucidation of the mechanism(s) underlying pathogenesis and the identification of potential therapeutic target types, which are critical for the development of therapeutic strategies...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236306/rs4705342-polymorphism-is-involved-in-the-tumorigenesis-of-hbv-positive-hcc-by-altering-the-binding-affinity-of-hbv-induced-nf-kb-with-the-promoter-region-of-microrna-143
#9
Yin Xiuli, Sun Shiying, Zhao Junyan, Yang Jing, Lei Xiaofei, Xu Changqing, Li Kun
BACKGROUND: The objective of this study was to explore the role of rs4705342 located in the miR-143 promoter in relation to the control of HBV positive HCC and the underlying molecular mechanism. METHOD: A luciferase assay was performed to explore the factors which influenced miR-143 transcription activity and the target gene of miR-143. This would further be confirmed by ChIP assay. Western-blot and real-time PCR were performed to identify the relationship between miR-143 and ORP8...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236301/synergistic-effect-of-carnosine-on-browning-of-adipose-tissue-in-exercised-obese-rats-a-focus-on-circulating-irisin-levels
#10
Mona F Schaalan, Basma K Ramadan, Azza H Abd Elwahab
BACKGROUND: The recent appreciation of the energy burning capacity of brown adipose tissue turns it to an attractive target as anti-obesity therapy. OBJECTIVE: to evaluate the effect of L-carnosine on browning of white adipose tissue in exercised obese rats. METHODS: Sixty adult male Wistar albino rats between 7-8 weeks-old weighing 130-150 g were allocated into six groups;(i) normal control rats fed normal diet; (ii) high fat diet (HFD)-induced obese rats, (iii) normal control rats fed normal diet and injected with L-carnosine (250mg/kg), (iv) HFD-rats injected with L-carnosine (250mg/kg),(v): HFD-rats subjected to exercise training; (vi): HFD- rats subjected to exercise training and L-carnosine together...
December 13, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29236261/reactivation-assay-to-identify-direct-targets-of-the-nonsense-mediated-mrna-decay-pathway-in-drosophila
#11
Jonathan O Nelson, Mark M Metzstein
Transcriptome analysis provides a snapshot of cellular gene expression and is used to determine how cells and organisms respond to genetic or environmental changes. Identifying the transcripts whose expression levels are regulated directly by the manipulation being examined from those whose expression changes as a secondary cause from the primary changes requires additional analyses. Here we present a technique used to distinguish direct targets of the nonsense-mediated mRNA decay (NMD) pathway in Drosophila from secondary gene expression effects caused by loss of this pathway...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29236259/identifying-cellular-nonsense-mediated-mrna-decay-nmd-targets-immunoprecipitation-of-phosphorylated-upf1-followed-by-rna-sequencing-p-upf1-rip-seq
#12
Tatsuaki Kurosaki, Mainul Hoque, Lynne E Maquat
Recent progress in the technology of transcriptome-wide high-throughput sequencing has revealed that nonsense-mediated mRNA decay (NMD) targets ~10% of physiologic transcripts for the purpose of tuning gene expression in response to various environmental conditions. Regardless of the eukaryote studied, NMD requires the ATP-dependent RNA helicase upframeshift 1 (UPF1). It was initially thought that cellular NMD targets could be defined by their binding to steady-state UPF1, which is largely hypophosphorylated...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29236255/identifying-mirna-targets-using-ago-ripseq
#13
Rebecca Petri, Johan Jakobsson
microRNAs (miRNA) are small, noncoding RNAs that bind to messenger RNAs (mRNAs) and regulate their activity. They are, therefore, important posttranscriptional regulators. In recent years it has become clear that miRNAs regulate large genetic networks, rather than single genes, and that one gene can be targeted by several miRNAs. To understand the role of miRNAs in cells or tissues, it is therefore important to analyze the targetome of miRNAs. Here, we present a technique called Argonaute-RNA Immunoprecipitation (AGO-RIP) which takes advantages of the fact that miRNAs and their targets are directly bound by the Argonaute protein family...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29236251/par-clip-for-discovering-target-sites-of-rna-binding-proteins
#14
Aitor Garzia, Pavel Morozov, Marcin Sajek, Cindy Meyer, Thomas Tuschl
RNA-binding proteins (RBPs) establish posttranscriptional gene regulation (PTGR) by coordinating the maturation, editing, transport, stability, and translation of cellular RNAs. A variety of experimental approaches have been developed to characterize the RNAs associated with RBPs in vitro as well as in vivo. Our laboratory developed Photoactivatable-Ribonucleoside-Enhanced Cross-Linking and Immunoprecipitation (PAR-CLIP), which in combination with next-generation sequencing enables the identification of RNA targets of RBPs at a nucleotide-level resolution...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29236145/-non-coding-rna-innovative-regulators-with-therapeutic-perspective
#15
A Bührke, C Bär, T Thum
As a result of the Human Genome Project it became evident that only 1-3% of all gene transcripts encode proteins. The vast majority of gene transcripts are in fact characterized as non-coding RNAs (ncRNAs). These ncRNAs have a huge impact on diverse physiological and pathological mechanisms within an organism. In particular, microRNAs (miRNAs) and long non-coding RNAs (lncRNAs), which are differentiated by their size and function, are involved in the regulation and development of many illnesses. In the context of heart and cardiovascular diseases numerous ncRNAs have also already been described in some detail...
December 13, 2017: Herz
https://www.readbyqxmd.com/read/29236054/genome-wide-profiling-of-small-rnas-and-degradome-revealed-conserved-regulations-of-mirnas-on-auxin-responsive-genes-during-fruit-enlargement-in-peaches
#16
Mengya Shi, Xiao Hu, Yu Wei, Xu Hou, Xue Yuan, Jun Liu, Yueping Liu
Auxin has long been known as a critical phytohormone that regulates fruit development in plants. However, due to the lack of an enlarged ovary wall in the model plants Arabidopsis and rice, the molecular regulatory mechanisms of fruit division and enlargement remain unclear. In this study, we performed small RNA sequencing and degradome sequencing analyses to systematically explore post-transcriptional regulation in the mesocarp at the hard core stage following treatment of the peach (Prunus persica L.) fruit with the synthetic auxin α-naphthylacetic acid (NAA)...
December 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29236052/micrornas-in-parkinson-s-disease-from-pathogenesis-to-novel-diagnostic-and-therapeutic-approaches
#17
REVIEW
Loredana Leggio, Silvia Vivarelli, Francesca L'Episcopo, Cataldo Tirolo, Salvo Caniglia, Nunzio Testa, Bianca Marchetti, Nunzio Iraci
Parkinson's disease (PD) is the most prevalent central nervous system (CNS) movement disorder and the second most common neurodegenerative disease overall. PD is characterized by the progressive loss of dopaminergic (DAergic) neurons in the substantia nigra pars compacta (SNpc) within the midbrain, accumulation of alpha-synuclein (α-SYN) in Lewy bodies and neurites and excessive neuroinflammation. The neurodegenerative processes typically begin decades before the appearance of clinical symptoms. Therefore, the diagnosis is achievable only when the majority of the relevant DAergic neurons have already died and for that reason available treatments are only palliative at best...
December 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29236030/the-tumor-suppressor-p53-in-mucosal-melanoma-of-the-head-and-neck
#18
REVIEW
Marie Kristin Fritsche, Andreas Knopf
Despite worldwide prevention programs, the incidence for cutaneous melanoma is continuously increasing. Mucosal melanoma (MM) represents a rare but highly aggressive phenotype of common melanoma with predilection in the sinonasal system. Far away from ultraviolet sun exposure, the molecular mechanisms underlying tumorigenesis and the highly aggressive clinical behavior are poorly understood. In many solid malignomas of the head and neck region, p53 tumor suppressor functions as oncogene due to p53 protein stabilizing mutation...
December 13, 2017: Genes
https://www.readbyqxmd.com/read/29235940/slc9b1-methylation-predicts-fetal-intolerance-of-labor
#19
Anna K Knight, Karen N Conneely, Varun Kilaru, Dawayland Cobb, Jennifer L Payne, Samantha Meilman, Elizabeth J Corwin, Zachary A Kaminsky, Anne L Dunlop, Alicia K Smith
Fetal intolerance of labor is a common indication for delivery by Caesarean section. Diagnosis is based on the presence of category III fetal heart rate tracing, which is an abnormal heart tracing associated with increased likelihood of fetal hypoxia and metabolic acidemia. This study analyzed data from 177 unique women who, during their prenatal visits (7-15 weeks and/or 24-32 weeks) to Atlanta area prenatal care clinics, consented to provide blood samples for DNA methylation (HumanMethylation450 BeadChip) and gene expression (Human HT-12 v4 Expression BeadChip) analyses...
December 13, 2017: Epigenetics: Official Journal of the DNA Methylation Society
https://www.readbyqxmd.com/read/29235657/electric-double-layer-electrostatics-of-lipid-bilayer-encapsulated-nanoparticles-towards-a-better-understanding-of-protocell-electrostatics
#20
Haoyuan Jing, Siddhartha Das
Lipid-bilayer-encapsulated nanoparticles (LBLENPs) or NP-supported LBL systems, such as protocells (which are lipid bilayer encapsulated mesoporous silica nanoparticles or MSNPs) have received extensive attention for applications like targeted drug and gene deliveries, multimodal diagnostics, characterization of membrane-geometry sensitive molecules, etc. Very often electrostatic-mediated interactions have been hypothesized to play key roles in the functioning of these LBLENPs. Despite that, very little has been done to theoretically quantify the fundamental electric double layer (EDL) electrostatics of such LBLENPs...
December 13, 2017: Electrophoresis
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