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https://www.readbyqxmd.com/read/29775417/targeting-histone-methyltransferase-enhancer-of-zeste-homolog-2-inhibits-renal-epithelial-mesenchymal-transition-and-attenuates-renal-fibrosis
#1
Xiaoxu Zhou, Chongxiang Xiong, Evelyn Tolbert, Ting C Zhao, George Bayliss, Shougang Zhuang
Enhancer of zeste homolog-2 (EZH2) is a methyltransferase that induces histone H3 lysine 27 trimethylation (H3K27me3) and functions as an oncogenic factor in many cancer types. Its role in renal epithelial-mesenchymal transition (EMT) remains unknown. In this study, we found that EZH2 and H3K27me3 were highly expressed in mouse kidney with unilateral ureteral obstruction and cultured mouse kidney proximal tubular (TKPT) cells undergoing EMT. Inhibition of EZH2 with 3-deazaneplanocin A (3-DZNeP) attenuated renal fibrosis, which was associated with preserving E-cadherin expression and inhibiting Vimentin up-regulation in the obstructed kidney...
May 18, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29773584/mechanisms-in-endocrinology-cell-cycle-regulation-in-adrenocortical-carcinoma
#2
Sofia Pereira, Mariana P Monteiro, Isabelle Bourdeau, Andre Lacroix, Duarte Pignatelli
Adrenocortical carcinomas are rather rare endocrine tumors that often have a poor prognosis. The reduced survival rate associated with these tumors is due to their aggressive biological behavior, combined with the scarcity of effective treatment options that are currently available. The recent identification of the genomic alterations present in ACC have provided further molecular mechanisms to develop consistent strategies for the diagnosis, prevention of progression and treatment of advanced ACCs. Taken together, molecular and genomic advances could be leading the way to develop personalized medicine in ACCs similarly to similar developments in lung or breast cancers...
May 17, 2018: European Journal of Endocrinology
https://www.readbyqxmd.com/read/29771409/mir-299-5p-targets-cell-cycle-to-promote-cell-proliferation-and-progression-of-osteosarcoma
#3
C-L Zhang, L-B Li, C She, Y Xie, D-W Ge, Q-R Dong
OBJECTIVE: Osteosarcoma is a common primary bone tumor with high mortality. MicroRNA (miRNA, miR) is a small RNA with 20-25 nucleotides, which could regulate diverse biological processes by targeting 3'-UTR of gene to degrade it. MiR-299-5p has been reported to participate in the progression of many diseases, but the role in osteosarcoma is still uncertain. The aim of this work was to investigate the expression of miR-299-5p in osteosarcoma and its clinical significance. MATERIALS AND METHODS: The datasets of osteosarcoma miRNA was searched in Gene Expression Omnibus (GEO) datasets, including GSE65071, GSE39040, and GSE39055...
May 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29770571/using-poly-l-lactic-acid-and-poly-%C3%A9-caprolactone-blends-to-fabricate-self-expanding-watertight-and-biodegradable-surgical-patches-for-potential-fetoscopic-myelomeningocele-repair
#4
Rigwed Tatu, Marc Oria, Sarah Pulliam, Lorenzo Signey, Marepalli B Rao, Jose L Peiro, Chia-Ying Lin
Our study focuses on the development and characterization of a self-expanding, watertight and biodegradable patch for fetoscopic myelomeningocele (MMC) prenatal repair. We fabricated poly(l-lactic acid) (PLA) and poly(ɛ-caprolactone) (PCL) blend films by solution casting. Formulation c with average glass transition temperature of 37.6 ± 1.2°C was chosen for temporospatial recovery. Favorable results from surface studies reflected homogeneous dispersion of polymers in the blend. The cytotoxicity was studied in human foreskin fibroblasts...
May 16, 2018: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29764563/deubiquitinase-usp35-as-a-novel-mitotic-regulator-via-maintenance-of-aurora-b-stability
#5
Jinyoung Park, Eun Joo Song
Aurora B is an important kinase involved in dynamic cellular events in mitosis. Aurora B activity is controlled by several post-translational modifications (PTMs). Among them, E3 ubiquitin ligase-mediated ubiquitination plays crucial roles in controlling the relocation and degradation of Aurora B. Aurora B, ubiquitinated by different E3 ligases, moves to the exact site for its mitotic function during metaphase-anaphase transition and is then degraded for cell cycle progression at the end of mitosis. However, how the stability of Aurora B is maintained until its degradation has been poorly understood...
May 16, 2018: BMB Reports
https://www.readbyqxmd.com/read/29762829/the-role-of-mir-99b-in-mediating-hepatocellular-carcinoma-invasion-and-migration
#6
C-J Liu, J-H Yang, F-Z Huang, J-H Yang, C-P Liu, X-H Mao, W-M Yi, X-B Shen, C Peng, M-F Chen, B Jiang, J-S Wu
OBJECTIVE: Hepatocellular carcinoma (HCC) is the most common type of primary liver cancer in adults with a high rate of malignancy. The potent invasion and migration of HCC mainly impact the prognosis and recurrence of the disease. Our previous study found that miR-99b was highly expressed in HCC, and its expression was associated with vascular invasion. It was speculated that miR-99b may play a role in HCC invasion and migration, while the specific mechanism remains unclear. MATERIALS AND METHODS: qRT-PCR was applied to detect expressions of miR-99b and KAI1 genes in L02, HepG2, and MHCC97H cells...
April 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29760958/targeting-muc1-c-suppresses-bcl2a1-in-triple-negative-breast-cancer
#7
Masayuki Hiraki, Takahiro Maeda, Neha Mehrotra, Caining Jin, Maroof Alam, Audrey Bouillez, Tsuyoshi Hata, Ashujit Tagde, Amy Keating, Surender Kharbanda, Harpal Singh, Donald Kufe
B-cell lymphoma 2-related protein A1 (BCL2A1) is a member of the BCL-2 family of anti-apoptotic proteins that confers resistance to treatment with anti-cancer drugs; however, there are presently no agents that target BCL2A1. The MUC1-C oncoprotein is aberrantly expressed in triple-negative breast cancer (TNBC) cells, induces the epithelial-mesenchymal transition (EMT) and promotes anti-cancer drug resistance. The present study demonstrates that targeting MUC1-C genetically and pharmacologically in TNBC cells results in the downregulation of BCL2A1 expression...
2018: Signal Transduction and Targeted Therapy
https://www.readbyqxmd.com/read/29760957/simulated-microgravity-induces-a-cellular-regression-of-the-mature-phenotype-in-human-primary-osteoblasts
#8
Magda Gioia, Anna Michaletti, Manuel Scimeca, Mario Marini, Umberto Tarantino, Lello Zolla, Massimo Coletta
Decreased mechanical loading on bones, such as prolonged bed rest and microgravity during space flights, leads to the development of an osteoporotic-like phenotype. Although osteoblast hypo-functionality is reported to be involved in the progression of bone pathological conditions, the cellular mechanisms of this process remain largely unknown. The combined application of mass spectrometry "-omics" and histochemical and ultrastructural approaches have been employed to investigate the effects of the gravitational unloading on human bone-cell biology...
2018: Cell Death Discovery
https://www.readbyqxmd.com/read/29756877/multistage-coupling-of-laser-wakefield-accelerators-with-curved-plasma-channels
#9
J Luo, M Chen, W Y Wu, S M Weng, Z M Sheng, C B Schroeder, D A Jaroszynski, E Esarey, W P Leemans, W B Mori, J Zhang
Multistage coupling of laser-wakefield accelerators is essential to overcome laser energy depletion for high-energy applications such as TeV-level electron-positron colliders. Current staging schemes feed subsequent laser pulses into stages using plasma mirrors while controlling electron beam focusing with plasma lenses. Here a more compact and efficient scheme is proposed to realize the simultaneous coupling of the electron beam and the laser pulse into a second stage. A partly curved channel, integrating a straight acceleration stage with a curved transition segment, is used to guide a fresh laser pulse into a subsequent straight channel, while the electrons continue straight...
April 13, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29755476/transitional-b-cells-and-tlr9-responses-are-defective-in-selective-iga-deficiency
#10
Andri L Lemarquis, Helga K Einarsdottir, Rakel N Kristjansdottir, Ingileif Jonsdottir, Bjorn R Ludviksson
Selective IgA deficiency (IgAD) is the most common primary antibody deficiency in the western world with affected individuals suffering from an increased burden of autoimmunity, atopic diseases and infections. It has been shown that IgAD B cells can be induced with germinal center mimicking reactions to produce IgA. However, IgA is the most prevalent antibody in mucosal sites, where antigen-independent responses are important. Much interest has recently focused on the role of TLR9 in both naïve and mature B cell differentiation into IgA secreting plasma cells...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29753758/lncrna-n335586-mir-924-ckmt1a-axis-contributes-to-cell-migration-and-invasion-in-hepatocellular-carcinoma-cells
#11
Hongxia Fan, Ping Lv, Ting Mu, Xiaopei Zhao, Yankun Liu, Yujie Feng, Jing Lv, Min Liu, Hua Tang
Hepatocellular carcinoma (HCC) is a leading cause of cancer death worldwide and chronic hepatitis B virus (HBV) infection is a major risk factor for HCC. Emerging evidences indicate that long noncoding RNAs (lncRNAs) play a pivotal role in HCC development, but its contribution to HBV-related HCC remains largely unclear. Differentially expressed lncRNAs in HBV-related HCC tissues were identified by deep sequencing in our previous study. The function of lncRNA n335586, one of most up-regulated lncRNAs in HBV-related HCC, was characterized in the present study...
May 10, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29753463/de-novo-urologic-malignancies-in-renal-transplant-recipients
#12
H Antunes, E Tavares-da-Silva, R Oliveira, J Carvalho, B Parada, C Bastos, A Figueiredo
BACKGROUND: Immunosuppressed organ transplant patients have an elevated risk of malignancies. The aim of this study was to determine the incidence of urologic malignancies in renal transplant recipients, as well as to evaluate their monitoring, treatment, and outcomes. METHODS: We conducted a retrospective single-center study of 2897 renal transplants between January 1987 and December 2016. Recipients presenting with de novo urologic malignancies were evaluated...
March 10, 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29751044/transcriptional-repressor-kaiso-promotes-epithelial-to-mesenchymal-transition-and-metastasis-in-prostate-cancer-through-direct-regulation-of-mir-200c
#13
Abisola Abisoye-Ogunniyan, Huxian Lin, Anghesom Ghebremedhin, Ahmad Salam, Balasubramanyam Karanam, Shaniece Theodore, Jacqueline Jones-Trich, Melissa Davis, William Grizzle, Honghe Wang, Clayton Yates
The loss of miR-200 family, through DNA methylation, results in cancer cells undergoing an epithelial to mesenchymal transition (EMT), and metastasis. In this study, we established that the transcriptional repressor Kaiso directly binds methylated regions of the miR-200 family, and this is reversed with 5-aza treatment. sh-Kaiso PC-3 cells display increased miR-200-a/b/c, miR-141, and miR-429 expression, with miR-200c demonstrating the most significant increase. Interestingly, overexpression of EGFR or treatment with EGF decreases miR-200c expression and this is reversed after treatment with EGFR specific kinase inhibitor PD153035...
May 8, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29750959/a-btb-zf-protein-znf131-is-required-for-early-b-cell-development
#14
Tomohiro Iguchi, Emako Miyauchi, Sumiko Watanabe, Hisao Masai, Shoichiro Miyatake
Members of the BTB-ZF transcription factor family play important roles in lymphocyte development. During T cell development, ZNF131, a BTB-ZF protein, is critical for the double-negative (DN) to double-positive (DP) transition and is also involved in cell proliferation. Here, we report that knockout of Znf131 at the pre-pro-B cell stage in mb1-Cre knock-in mouse resulted in defect of pro-B to pre-B cell transition. ZNF131 was shown to be required for efficient pro-B cell proliferation as well as for immunoglobulin heavy chain gene rearrangement that occur in the proliferating pro-B cells...
May 8, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29750170/electroporation-with-cisplatin-against-metastatic-pancreatic-cancer-in-vitro-study-on-human-primary-cell-culture
#15
Olga Michel, Julita Kulbacka, Jolanta Saczko, Justyna Mączyńska, Piotr Błasiak, Joanna Rossowska, Adam Rzechonek
Despite the rapid progression of cancer pharmacotherapy, the high drug resistance of pancreatic ductal adenocarcinoma (PDA) makes it one of the most lethal malignancies. Therefore, there are high expectations associated with experimental therapies, such as electrochemotherapy (ECT). This technique involves the application of short electric pulses to induce transitional permeabilization of the cellular membrane, thus enhancing drug molecules influx. The aim of the study was to investigate the influence of electroporation with cisplatin (CisEP) on the primary culture of human PDA cells from lung metastases-their survival and stress response...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29749520/silencing-of-urg11-expression-inhibits-the-proliferation-and-epithelial%C3%A2-mesenchymal-transition-in-benign-prostatic-hyperplasia-cells-via-the-rhoa-rock1-pathway
#16
Guanying Zhang, Feng Zhu, Guangye Han, Zeyu Li, Quanfeng Yu, Zhenhui Li, Jianchang Li
Upregulated gene 11 (URG11) represents a gene upregulated by hepatitis B virus X protein and is involved in the biological processes of multifarious tumors. The present study aimed to investigate the protective effects and regulatory mechanisms of URG11 in benign prostatic hyperplasia (BPH). URG11, Ras homolog family member A (RhoA) and Rho‑associated protein kinase 1 (ROCK1) expression was detected in patients with BPH using reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR). Furthermore, URG11 expression was silenced using URG11‑targeting small interfering RNAs...
May 8, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29748916/zbtb20-regulates-developmental-neurogenesis-in-the-olfactory-bulb-and-gliogenesis-after-adult-brain-injury
#17
Thorsten R Doeppner, Josephine Herz, Mathias Bähr, Anton B Tonchev, Anastassia Stoykova
The transcription factor (TF) Zbtb20 is important for the hippocampal specification and the regulation of neurogenesis of neocortical projection neurons. Herein, we show a critical involvement of the TF Zbtb20 in the neurogenesis of both projection neurons and interneurons of the olfactory bulb during embryonic stages. Our data indicate that the lack of Zbtb20 significantly diminishes the generation of a set of early-born Tbr2+ neurons during embryogenesis. Furthermore, we provide evidence that Zbtb20 regulates the transition between neurogenesis to gliogenesis in cortical radial glial progenitor cells at the perinatal (E18...
May 11, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29748343/physical-activity-among-hiv-positive-patients-receiving-antiretroviral-therapy-in-hanoi-and-nam-dinh-vietnam-a-cross-sectional-study
#18
Anh Kim Dang, Long Hoang Nguyen, Anh Quynh Nguyen, Bach Xuan Tran, Tung Thanh Tran, Carl A Latkin, Melvyn W B Zhang, Roger C M Ho
OBJECTIVES: Antiretroviral therapy (ART) has facilitated the transition of HIV infection into a chronic disease, where adherence to medications is required along with keeping a healthy lifestyle. Therefore, an increase in physical activity has been recommended for patients with HIV in order to maintain their health status. This study looked to determine the physical activity level and its associated factors among patients with HIV receiving ART treatment. SETTINGS: Eight outpatient clinic sites across different levels of the health systems in both rural and urban settings in Hanoi and Nam Dinh, Vietnam...
May 10, 2018: BMJ Open
https://www.readbyqxmd.com/read/29746148/vitrification-assessment-thermal-analysis-of-cryoprotective-aqueous-solutions-1-2-propanediol-and-ethylene-glycol
#19
Muhamad Abidalla, Pio F Roversi
Cryopreservation of viable cells and cell materials is being developed for biological and biopharmaceutical applications. The inhibition of ice formation during the cooling and warming phase of vitrified living biological samples is important for their survival. The tendency to form glasses (glass transition temperature, Tg ) upon cooling in the vitrification solution and the stability of the amorphous state upon warming to determine the critical cooling rate (Vccr ) and critical warming rates (Vcwr ) are evaluated...
May 10, 2018: Biopreservation and Biobanking
https://www.readbyqxmd.com/read/29745668/temperature-induced-self-assembly-of-the-group-b-streptococcus-gbs-fusion-antigen-gbs-nn
#20
Fabrice Rose, Silke Roovers, Mathias Fanø, Stine Harloff-Helleberg, Jacob Judas Kain Kirkensgaard, Kim Hejnaes, Per Fischer, Camilla Foged
Group B streptococcus (GBS) is a leading cause of serious bacterial neonatal infections worldwide, which provides an unmet medical need for a globally effective vaccine. The recombinant GBS fusion antigen GBS-NN contains the N-terminal regions of the GBS Rib and Alpha C proteins. It shows promising immunogenicity eliciting protective immunity in mice and encouraging results in early human clinical trials. Understanding the physical stability of GBS-NN containing conformational B-cell epitopes is crucial to ensure optimal vaccine stability, efficacy and safety...
May 10, 2018: Molecular Pharmaceutics
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