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https://www.readbyqxmd.com/read/27821587/caprin-2-positively-regulates-cdk14-cyclin-y-mediated-lrp5-6-constitutive-phosphorylation
#1
Xin Wang, Yingying Jia, Cong Fei, Xiaomin Song, Lin Li
Low-density lipoprotein receptor-related proteins 5 and 6 (LRP5/6) are co-receptors for Wnt ligands. Upon ligand binding, LRP5/6 undergoes GSK3/CKI-mediated phosphorylation at multiple PPP(S/T)P motifs in the intracellular domain (ICD), which is essential for the canonical Wnt signal transduction. On the other hand, in Wnt-off state, the mitosis-specific CDK14/Cyclin Y kinase complex phosphorylates the S1490 of LRP5/6 at G2/M, thereby priming the receptor for Wnt-induced phosphorylation. However, it remains unclear how CDK14/Cyclin Y is recruited to LRP5/6 and whether there are other cofactors involved in this process...
November 7, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27738720/efficient-multi-enzyme-catalyzed-cdp-choline-production-driven-by-an-atp-donor-module
#2
Yingmiao Liu, Junzhi Wang, Chongmao Xu, Yong Chen, Junjie Yang, Dong Liu, Huanqing Niu, Yu Jiang, Sheng Yang, Hanjie Ying
Cytidine diphosphate choline (CDP-choline) has been applied for treating acute craniocerebral injury and allowing recovery of consciousness after brain surgery. In this study, an acetate kinase (ACK)/acetyl phosphate system was used to supply ATP and combined with Escherichia coli-overexpressed CMP kinase (CMK), NDP kinase (NDK), choline phosphate cytidylyltransferase (CCT), and choline kinase (CKI) to produce CDP-choline from CMP and choline chloride. Within 1 h, 49 mM CDP-choline was produced, for a molar yield of 89...
October 13, 2016: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27738441/efficacy-of-compound-kushen-injection-in-combination-with-induction-chemotherapy-for-treating-adult-patients-newly-diagnosed-with-acute-leukemia
#3
Honglei Tu, Bo Lei, Shan Meng, Hailing Liu, Yongchang Wei, Aili He, Wanggang Zhang, Fuling Zhou
We assessed the clinical effectiveness and safety of CKI (compound Kushen injection) plus standard induction chemotherapy for treating adult acute leukemia (AL). We randomly assigned 332 patients with newly diagnosed AL to control (n = 165, receiving DA (daunorubicin and cytarabine) or hyper-CVAD (fractionated cyclophosphamide, doxorubicin, vincristine, and dexamethasone)) or treatment (n = 167, receiving CKI and DA or hyper-CVAD) groups. Posttreatment, treatment group CD3+, CD4+, CD4+/CD8+, natural killer (NK) cell, and immunoglobulin (IgG, IgA, and IgM) levels were significantly higher than those of the control group (p < 0...
2016: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/27669459/sustained-erk-inhibition-maximizes-responses-of-brafv600e-thyroid-cancers-to-radioiodine
#4
James Nagarajah, Mina Le, Jeffrey A Knauf, Giuseppe Ferrandino, Cristina Montero-Conde, Nagavarakishore Pillarsetty, Alexander Bolaender, Christopher Irwin, Gnana Prakasam Krishnamoorthy, Mahesh Saqcena, Steven M Larson, Alan L Ho, Venkatraman Seshan, Nobuya Ishii, Nancy Carrasco, Neal Rosen, Wolfgang A Weber, James A Fagin
Radioiodide (RAI) therapy of thyroid cancer exploits the relatively selective ability of thyroid cells to transport and accumulate iodide. Iodide uptake requires expression of critical genes that are involved in various steps of thyroid hormone biosynthesis. ERK signaling, which is markedly increased in thyroid cancer cells driven by oncogenic BRAF, represses the genetic program that enables iodide transport. Here, we determined that a critical threshold for inhibition of MAPK signaling is required to optimally restore expression of thyroid differentiation genes in thyroid cells and in mice with BrafV600E-induced thyroid cancer...
November 1, 2016: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27668869/visual-topographic-and-pachymetric-effects-of-pediatric-corneal-collagen-cross-linking
#5
Ibrahim Toprak, Volkan Yaylali, Cem Yildirim
PURPOSE: To evaluate the effects of pediatric corneal collagen cross-linking (CXL) on corrected distance visual acuity (CDVA), maximum keratometry (Kmax), and other Scheimpflug imaging system parameters during 2 years of follow-up. METHODS: The records of 29 eyes of 29 pediatric patients who underwent unilateral CXL treatment for progressive keratoconus were reviewed. Changes in CDVA, Kmax, anterior chamber depth, anterior chamber volume, anterior chamber angle, pupil-center pachymetry, apical pachymetry, thinnest pachymetry, corneal volume, and topographic indices (index of surface variance [ISV], index of vertical asymmetry [IVA], index of height asymmetry [IHA], keratoconus index [KI], center keratoconus index [CKI], index of height decentration [IHD], and minimum radius of curvature [Rmin]) were analyzed among baseline and 1 and 2 years after the CXL treatment...
September 26, 2016: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/27649746/a-new-layer-of-degradation-mechanism-for-pr-set7-set8-during-cell-cycle
#6
Nana Zheng, Xiangpeng Dai, Zhiwei Wang, Wenyi Wei
Set8 is critically involved in transcription regulation, cell cycle progression and genomic stability. Emerging evidence has revealed that E3 ubiquitin ligases such as CRL4(cdt2) and SCF(Skp2) regulate Set8 protein abundance. However, it is unclear whether other E3 ligase(s) could govern Set8 level for proper cell cycle progression in response to genotoxic stress such as UV irradiation. Recently, we report that the SCF(β-TRCP) complex regulates Set8 protein stability by targeting it for ubiquitination and subsequent degradation...
September 20, 2016: Cell Cycle
https://www.readbyqxmd.com/read/27602759/identification-of-candidate-anti-cancer-molecular-mechanisms-of-compound-kushen-injection-using-functional-genomics
#7
Zhipeng Qu, Jian Cui, Yuka Harata-Lee, Thazin Nwe Aung, Qianjin Feng, Joy M Raison, R Daniel Kortschak, David L Adelson
Compound Kushen Injection (CKI) has been clinically used in China for over 15 years to treat various types of solid tumours. However, because such Traditional Chinese Medicine (TCM) preparations are complex mixtures of plant secondary metabolites, it is essential to explore their underlying molecular mechanisms in a systematic fashion. We have used the MCF-7 human breast cancer cell line as an initial in vitro model to identify CKI induced changes in gene expression. Cells were treated with CKI for 24 and 48 hours at two concentrations (1 and 2 mg/mL total alkaloids), and the effect of CKI on cell proliferation and apoptosis were measured using XTT and Annexin V/Propidium Iodide staining assays respectively...
September 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27569911/nuclear-pore-permeabilization-is-a-convergent-signaling-event-in-effector-triggered-immunity
#8
Yangnan Gu, Sophia G Zebell, Zizhen Liang, Shui Wang, Byung-Ho Kang, Xinnian Dong
Nuclear transport of immune receptors, signal transducers, and transcription factors is an essential regulatory mechanism for immune activation. Whether and how this process is regulated at the level of the nuclear pore complex (NPC) remains unclear. Here, we report that CPR5, which plays a key inhibitory role in effector-triggered immunity (ETI) and programmed cell death (PCD) in plants, is a novel transmembrane nucleoporin. CPR5 associates with anchors of the NPC selective barrier to constrain nuclear access of signaling cargos and sequesters cyclin-dependent kinase inhibitors (CKIs) involved in ETI signal transduction...
September 8, 2016: Cell
https://www.readbyqxmd.com/read/27430269/disease-and-carrier-isolates-of-neisseria-meningitidis-cause-g1-cell-cycle-arrest-in-human-epithelial-cells
#9
Michael von Papen, Wilhelm F Oosthuysen, Jérôme Becam, Heike Claus, Alexandra Schubert-Unkmeir
Microbial pathogens have developed several mechanisms to modulate and interfere with host cell cycle progression. In this study, we analyzed the effect of the human pathogen Neisseria meningitidis on the cell cycle of epithelial cells. Two pathogenic isolates, as well as two carrier isolates, were tested for their ability to adhere to and invade into the epithelial cell lines Detroit 562 and NP69 and to modulate the cell cycle. We found that all isolates adhered equally well to both Detroit 562 and NP69 cells, whereas the carrier isolates were significantly less invasive...
October 2016: Infection and Immunity
https://www.readbyqxmd.com/read/27143919/the-important-tumor-suppressor-role-of-per1-in-regulating-the-cyclin-cdk-cki-network-in-scc15-human-oral-squamous-cell-carcinoma-cells
#10
Xiao-Juan Fu, Han-Xue Li, Kai Yang, Dan Chen, Hong Tang
BACKGROUND: Accumulating evidence suggests that the abnormal expression of the circadian clock gene PER1 is closely related to the development and progression of cancer. However, the exact molecular mechanism by which the abnormal expression of PER1 induces carcinogenesis is unclear. This study was conducted to investigate the alterations in downstream cell cycle genes, cell cycle distribution, cell proliferation, apoptosis, and in vivo tumorigenicity in SCC15 oral squamous cell carcinoma cells after PER1 downregulation...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27099469/comparison-of-scheimpflug-imaging-parameters-between-steep-and-keratoconic-corneas-of-caucasian-eyes
#11
Tukezban Huseynova, Farah Abdulaliyeva, Michele Lanza
PURPOSE: To compare the keratometric and pachymetric parameters of healthy eyes with those affected by steep cornea and keratoconus (KC) using Scheimpflug camera. SETTING: Briz-L Eye Clinic, Baku, Azerbaijan. DESIGN: A cross-sectional study. METHODS: In this study, 49 KC (Amsler-Krumeich stage 1) eyes and 36 healthy eyes were enrolled. A complete ophthalmic evaluation and a Scheimpflug camera scan were performed in every eye included in the study...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27088431/identification-of-cooperative-genes-for-e2a-pbx1-to-develop-acute-lymphoblastic-leukemia
#12
Yasuyuki Sera, Norimasa Yamasaki, Hideaki Oda, Akiko Nagamachi, Linda Wolff, Takeshi Inukai, Toshiya Inaba, Hiroaki Honda
E2A-PBX1 is a chimeric gene product detected in t(1;19)-bearing acute lymphoblastic leukemia (ALL) with B-cell lineage. To investigate the leukemogenic process, we generated conditional knock-in (cKI) mice for E2A-PBX1, in which E2A-PBX1 is inducibly expressed under the control of the endogenous E2A promoter. Despite the induced expression of E2A-PBX1, no hematopoietic disease was observed, strongly suggesting that additional genetic alterations are required to develop leukemia. To address this possibility, retroviral insertional mutagenesis was used...
July 2016: Cancer Science
https://www.readbyqxmd.com/read/27065861/the-therapeutic-efficacy-and-safety-of-compound-kushen-injection-combined-with-transarterial-chemoembolization-in-unresectable-hepatocellular-carcinoma-an-update-systematic-review-and-meta-analysis
#13
REVIEW
Xiao Ma, Rui-Sheng Li, Jian Wang, Yin-Qiu Huang, Peng-Yan Li, Ji Wang, Hai-Bin Su, Rui-Lin Wang, Ya-Ming Zhang, Hong-Hong Liu, Cong-En Zhang, Zhi-Jie Ma, Jia-Bo Wang, Yan-Ling Zhao, Xiao-He Xiao
BACKGROUND: Compound Kushen Injection (CKI) is a Chinese patent medicine approved by the China Food and Drug Administration for the treatment of various types of solid tumors. CKI, combined with transarterial chemoembolization (TACE), is believed to increase the therapeutic efficacy of unresectable hepatocellular carcinoma (HCC). We report an updated and extended meta-analysis with detailed outcomes of both the efficacy and adverse events (AEs) of CKI combined with TACE therapy. MATERIALS AND METHODS: Electronic databases, including PubMed, Embase, the Cochrane Library, the Chinese Biomedical Database (CBM), Wanfang, the VIP medicine information system (VMIS) and the China National Knowledge Infrastructure (CNKI), were examined for relevant articles before November 13, 2015...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27035749/circadian-clock-gene-per2-plays-an-important-role-in-cell-proliferation-apoptosis-and-cell-cycle-progression-in-human-oral-squamous-cell-carcinoma
#14
Qingqing Wang, Yiran Ao, Kai Yang, Hong Tang, Dan Chen
Previous studies have shown that the aberrant expression of period circadian clock 2 (Per2) is closely related to the occurrence and development of cancers, but the specific mechanism remains unclear. In the present study, we used shRNA to downregulate Per2 in oral squamous cell carcinoma (OSCC) Tca8113 cells, and then detected the alterations in cell cycle, cell proliferation and apoptosis by flow cytometric analysis and mRNA expression alterations in all the important genes in the cyclin/cyclin-dependent protein kinase (CDK)/cyclin-dependent kinase inhibitor (CKI) cell cycle network by RT-qPCR...
June 2016: Oncology Reports
https://www.readbyqxmd.com/read/27011052/notch-signaling-activates-stem-cell-properties-of-m%C3%A3-ller-glia-through-transcriptional-regulation-and-skp2-mediated-degradation-of-p27kip1
#15
Carolina Beltrame Del Debbio, Qulsum Mir, Sowmya Parameswaran, Saumi Mathews, Xiaohuan Xia, Li Zheng, Andrew J Neville, Iqbal Ahmad
Müller glia (MG), the sole glial cells generated by retinal progenitors, have emerged as a viable cellular target for therapeutic regeneration in degenerative blinding diseases, as they possess dormant stem cell properties. However, the mammalian MG does not display the neurogenic potential of their lower vertebrate counterparts, precluding their practical clinical use. The answer to this barrier may be found in two interlinked processes underlying the neurogenic potential, i.e., the activation of the dormant stem cell properties of MG and their differentiation along the neuronal lineage...
2016: PloS One
https://www.readbyqxmd.com/read/26993232/1-mcp-treatment-enhanced-expression-of-genes-controlling-endosperm-cell-division-and-starch-biosynthesis-for-improvement-of-grain-filling-in-a-dense-panicle-rice-cultivar
#16
B B Panda, A K Badoghar, S Sekhar, B P Shaw, P K Mohapatra
High ethylene production in dense-panicle rice cultivars impacts grain filling. 1-MCP (ethylene action inhibitor) treatment increased assimilates partitioning, cell number and size and expression of starch synthesizing enzyme genes of developing caryopses mostly in the basal spikelets of panicle at early post-anthesis stage. The gain in cell number was less compared to the increase of size. High ethylene production in spikelets matched with greater expression of ethylene receptor and signal transducer genes...
May 2016: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/26922559/the-28-day-exposure-to-fenpropathrin-decreases-locomotor-activity-and-reduces-activity-of-antioxidant-enzymes-in-mice-brains
#17
Barbara Nieradko-Iwanicka, Andrzej Borzęcki
BACKGROUND: Fenpropathrin (Fen) is a pyrethroid (Pyr) insecticide. Pyrs are used in veterinary medicine, in agriculture and for domestic purposes. As their use increases, new questions about their side effects and mode of action in non-target organisms arise. The objective of this work was to characterize dose-response relationship for in vivo motor function and memory in mice exposed to Fen for 28 days and to assess its influence on activity of antioxidant enzymes in mice brains. METHODS: The experiment was performed using 64 female mice...
April 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/26908292/zearalenone-and-its-metabolites-in-the-tissues-of-female-wild-boars-exposed-per-os-to-mycotoxins
#18
Magdalena Gajęcka, Piotr Sławuta, Jakub Nicpoń, Roman Kołacz, Zdzisław Kiełbowicz, Łukasz Zielonka, Michał Dąbrowski, Wojciech Szweda, Maciej Gajęcki, Józef Nicpoń
The study was performed on 18 clinically healthy female wild boars with initial body weight of 35 ± 2 kg. The animals were divided into two experimental groups (group I and group II) and one control group (group C) of 6 female wild boars per group. Group I animals were administered per os pure zearalenone (ZEN) at 150 μg/kg BW every two months for 7 subsequent days, whereas group II animals received feed naturally contaminated with ZEN at 50 μg/kg BW/day. Female wild boars were exposed to ZEN over a period of 1 year...
May 2016: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/26899281/surgical-functional-and-audiological-evaluation-of-new-baha-%C3%A2-attract-system-implantations
#19
Wojciech Gawęcki, Olgierd Maciej Stieler, Andrzej Balcerowiak, Dariusz Komar, Renata Gibasiewicz, Michał Karlik, Joanna Szyfter-Harris, Maciej Wróbel
Bone-anchored hearing aids are well-established solutions for treatment of hearing-impaired patients. However, classical systems with percutaneous abutments have disadvantages concerning aesthetics, hygiene and adverse soft tissue reactions. The study aimed to evaluate surgical, functional and audiological results of a new Baha(®) Attract system, in which the sound processor is attached by magnetic force. Twenty patients implanted with a Baha(®) Attract system were divided into two groups: A-bilateral mixed and conductive hearing loss, B-single-sided deafness, and evaluated during a 6-month follow-up...
October 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/26702051/phosphoproteomics-identified-an-ns5a-phosphorylation-site-involved-in-hepatitis-c-virus-replication
#20
Weng Man Chong, Shih-Chin Hsu, Wei-Ting Kao, Chieh-Wen Lo, Kuan-Ying Lee, Jheng-Syuan Shao, Yi-Hung Chen, Justin Chang, Steve S-L Chen, Ming-Jiun Yu
The non-structural protein 5A (NS5A) is a hepatitis C virus (HCV) protein indispensable for the viral life cycle. Many prior papers have pinpointed several serine residues in the low complexity sequence I region of NS5A responsible for NS5A phosphorylation; however, the functions of specific phosphorylation sites remained obscure. Using phosphoproteomics, we identified three phosphorylation sites (serines 222, 235, and 238) in the NS5A low complexity sequence I region. Reporter virus and replicon assays using phosphorylation-ablated alanine mutants of these sites showed that Ser-235 dominated over Ser-222 and Ser-238 in HCV replication...
February 19, 2016: Journal of Biological Chemistry
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