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https://www.readbyqxmd.com/read/28927264/comparative-interactomes-of-vrk1-and-vrk3-with-their-distinct-roles-in-the-cell-cycle-of-liver-cancer
#1
Namgyu Lee, Dae-Kyum Kim, Seung Hyun Han, Hye Guk Ryu, Sung Jin Park, Kyong-Tai Kim, Kwan Yong Choi
Vaccinia-related kinase 1 (VRK1) and VRK3 are members of the VRK family of serine/threonine kinases and are principally localized in the nucleus. Despite the crucial roles of VRK1/ VRK3 in physiology and disease, the molecular and functional interactions of VRK1/VRK3 are poorly understood. Here, we identified over 200 unreported VRK1/VRK3-interacting candidate proteins by affinity purification and LC-MS/MS. The networks of VRK1 and VRK3 interactomes were found to be associated with important biological processes such as the cell cycle, DNA repair, chromatin assembly, and RNA processing...
August 31, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28927142/tumour-growth-suppressive-effect-of-arsenic-trioxide-in-squamous-cell-lung-carcinoma
#2
Leanne Lee Leung, Sze-Kwan Lam, Yuan-Yuan Li, James Chung-Man Ho
Lung squamous cell carcinoma (SCC) is the second most common subtype of non-small cell lung carcinoma. The anticancer effects of arsenic trioxide (ATO) in lung adenocarcinoma and small-cell lung cancer have previously been reported; however its effects in SCC remain unclear. An MTT assay and western blot analysis were performed to determine cell viability and protein expression, respectively, in the SK-MES-1 and SW900 SCC cell lines following treatment with ATO. Phosphatidylserine externalization, mitochondrial membrane depolarization and cell cycle distribution were studied using flow cytometry and the in vivo effects of ATO on tumour growth were investigated with a xenograft model...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927138/c-jun-mediated-%C3%AE-1-3-n-acetylglucosaminyltransferase-8-expression-a-novel-mechanism-regulating-the-invasion-and-metastasis-of-colorectal-carcinoma-cells
#3
Chunliang Liu, Hao Qiu, Meiyun Yu, Zerong Wang, Yaqin Yuan, Zhi Jiang, Xuejun Shao, Dong Hua, Min Liu, Shiliang Wu
β-1,3-N-Acetylglucosaminyltransferase 8 (β3GnT8) is a key enzyme that catalyzes the formation of polylactosamine glycan structures by transferring GlcNAc to tetra-antennary β1-6-branched N-glycans, and it has been reported to participate in tumor invasion and metastasis by regulating the expression of matrix metalloproteinases (MMPs), cluster of differentiation 147 (CD147) and polylactosamine. By contrast, the role of transcription factor c-Jun in cell cycle progression has been well established. c-Jun has an important role in tumor cell invasion and metastasis...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927116/expression-of-family-with-sequence-similarity-172-member-a-and-nucleotide-binding-protein-1-is-associated-with-the-poor-prognosis-of-colorectal-carcinoma
#4
Wenjun Liu, Shuang Wang, Kai Qian, Jinqian Zhang, Zhi Zhang, Hao Liu
In our previous studies, a functionally unknown gene, family with sequence similarity 172, member A (FAM172A), was identified. High levels of FAM172A suppressed the cell cycle process, arresting HepG2 cells in G1/S and inhibiting cell proliferation. The present study aimed to confirm the expression levels of FAM172A and nucleotide-binding protein 1 (NUBP1) in colorectal cancer (CRC) tissues and normal colorectal tissues. The impact of FAM172A and NUBP1 on the prognosis of patients with CRC was also analyzed...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927115/wee1-inhibition-by-mk1775-as-a-single-agent-therapy-inhibits-ovarian-cancer-viability
#5
Minghui Zhang, Donye Dominguez, Siqi Chen, Jie Fan, Lei Qin, Alan Long, Xia Li, Yi Zhang, Huirong Shi, Bin Zhang
Wee1-like protein kinase (WEE1) physiologically serves a key function in maintaining the integrity of the cell genome through mediating the activation of cyclin-dependent kinase (CDK)1 and CDK2. Increased expression of WEE1 has been associated with the poor prognosis of patients with ovarian cancer. The present study aimed at examining the in vitro and in vivo antitumor activity of MK1775, a potent pharmacological inhibitor of WEE1, as a single agent against ovarian cancer cells. The cytotoxicity of MK1775 was examined in a panel of tumor cells using MTT in vitro...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927114/microrna-383-5p-acts-as-a-prognostic-marker-and-inhibitor-of-cell-proliferation-in-lung-adenocarcinoma-by-cancerous-inhibitor-of-protein-phosphatase-2a
#6
Shasha Zhao, Xinyuan Gao, Shuzhi Zang, Yunxia Li, Xianjun Feng, Xiaomei Yuan
Lung cancer is the leading cause of cancer-associated mortality worldwide. MicroRNAs (miRNAs/miRs) serve a role in the occurrence and development of lung cancer. The aim of the present study was to analyze the expression and function of the proliferation-associated miR-383-5p in lung adenocarcinoma (LAC). Samples of human LAC and matched adjacent normal lung tissues were surgically removed, and miR-383-5p expression and the pathological characteristics of lung adenocarcinoma were investigated. The present study revealed that miR-383-5p expression level was significantly decreased in LAC tissues and its expression levels were markedly associated with tumor size and differentiation...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927105/reactive-oxygen-species-driven-mitochondrial-injury-induces-apoptosis-by-teroxirone-in-human-non-small-cell-lung-cancer-cells
#7
Jing-Ping Wang, Chang-Heng Hsieh, Chun-Yen Liu, Kai-Han Lin, Pei-Tsun Wu, Kwun-Min Chen, Kang Fang
Teroxirone as an anticancer agent is used to treat human lung cancer by inducing apoptotic cell death. Previous studies have demonstrated that the status of the tumor suppressor p53 determined the onset of apoptotic cell death in human non-small cell lung cancer cells (NSCLC). In order to further understand the underlying mechanisms of lung cancer, the present study explored the targets of teroxirone. By including antioxidants, the present study analyzed changes in cell proliferation, cell cycle division, mitochondrial membrane potential (MMP), reactive oxygen species (ROS), expression of apoptosis markers and cytochrome c distribution...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927092/synergistic-anticancer-effect-of-curcumin-and-chemotherapy-regimen-fp-in-human-gastric-cancer-mgc-803-cells
#8
Bin He, Wen Wei, Ji Liu, Yundan Xu, Gang Zhao
Curcumin is an anticancer compound that exerts anti-proliferative and apoptotic effects via multiple molecular targets. The purpose of the present study was to investigate the anticancer effects of curcumin in combination with 5-fluorouracil plus cisplatin (FP) on the MGC-803 human gastric cancer cell line. Following treatment with curcumin and/or FP for 24, 48 and 72 h, cell viability, cell cycle progression and the apoptosis rate were evaluated using an MTT assay, flow cytometry and dual acridine orange/ethidium bromide staining, respectively...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927065/mast-cell-chymase-affects-the-proliferation-and-metastasis-of-lung-carcinoma-cells-in-vitro
#9
Yuan Jiang, Yudan Wu, William James Hardie, Xiaoying Zhou
Metastasis of lung carcinoma cells is a major cause of organ failure and mortality of patients with lung cancer. Lung mast cells are a type of immune cell which reside in the respiratory mucosa. High numbers of mast cells are associated with the majority of common types of cancer; however, the effects of mast cells on cancer remain unclear. In the present study, the effects of mast cell chymase (MCC) on the proliferation and adhesion of the lung carcinoma cell lines A549 and H520 was investigated. After 24 h of treatment, the highest dose of MCC (50 mU/ml) decreased the proliferation rate of A549 and H520 cells, whereas the lowest dose of MCC (5 mU/ml) resulted in a small increase in the viability...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927053/synthesis-biological-evaluation-and-mechanism-studies-of-matrine-derivatives-as-anticancer-agents
#10
Lihe Jiang, Lichuan Wu, Fangfang Yang, Nadin Almosnid, Xu Liu, Jun Jiang, Elliot Altman, Lisheng Wang, Ying Gao
A total of five matrine derivatives were synthesized and evaluated for their anti-proliferation activity using a panel of four human cancer cell lines, including A549 lung, BT20 breast, MCF-7 breast and U2OS osteosarcoma cells. The YF3-5, YF3-7 and YF3-9, three novel compounds, demonstrated increased anti-proliferation activity compared with matrine, of which YF3-5 revealed the strongest anti-proliferation activity with a half-maximal inhibitory concentration value of 15.49-16.67 µM against the four human cancer cell lines...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927033/all-trans-retinoic-acid-enhances-temozolomide-induced-autophagy-in-human-glioma-cells-u251-via-targeting-keap1-nrf2-are-signaling-pathway
#11
Lin Shi, Hongyuan Li, Yang Zhan
The present study evaluated the retinoic acid (RA) enhancement of temozolomide (TMZ) effects on the human glioma cells U251 and explored its underlying molecular mechanism. The cell growth was detected using the MTT assay and the cell cycle was assessed by flow cytometry. Cell apoptosis was analyzed by Annexin V/propidium iodide staining, and the cell morphology was evaluated using transmission electron microscopy (TEM). Additionally, reverse transcription-PCR and western blot analysis were applied to detect the mRNA and protein levels...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927025/repurposing-itraconazole-for-the-treatment-of-cancer
#12
Rachel Pounds, Sarah Leonard, Christopher Dawson, Sean Kehoe
The repurposing of drugs is becoming increasingly attractive as it avoids the lengthy process and cost implications associated with bringing a novel drug to market. Itraconazole is a broad-spectrum anti-fungal agent. An emerging body of in vivo, in vitro and clinical evidence have confirmed that it also possesses antineoplastic activities and has a synergistic action when combined with other chemotherapeutic agents. It acts via several mechanisms to prevent tumour growth, including inhibition of the Hedgehog pathway, prevention of angiogenesis, decreased endothelial cell proliferation, cell cycle arrest and induction of auto-phagocytosis...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28926932/comparison-of-two-components-of-propolis-caffeic-acid-ca-and-caffeic-acid-phenethyl-ester-cape-induce-apoptosis-and-cell-cycle-arrest-of-breast-cancer-cells-mda-mb-231
#13
Agata Kabała-Dzik, Anna Rzepecka-Stojko, Robert Kubina, Żaneta Jastrzębska-Stojko, Rafał Stojko, Robert Dariusz Wojtyczka, Jerzy Stojko
Studies show that caffeic acid (CA) and caffeic acid phenethyl ester (CAPE) are compounds with potent chemopreventive effects. Breast cancer is a common form of aggressive cancer among women worldwide. This study shows a comparison of CA and CAPE activity on triple-negative human caucasian breast adenocarcinoma line cells (MDA-MB-231). MDA-MB-231 cells were treated by CA and CAPE with doses of from 10 to 100 µM, for periods of 24 h and 48 h. Cytotoxicity MTT tests, apoptosis by Annexin V, and cell cycle with Dead Cell Assays were performed...
September 15, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28926893/-effect-of-intratumor-heterogeneity-of-esophageal-squamous-cell-carcinoma-on-chemotherapy-sensitivity
#14
L Sun, W Wu, M Yan, P L Han, X Zhan, X W Ma, X G Cao, S Zhao, F Gao, Y Qi, W Cao
Objective: To investigate the relationship of heterogeneity of esophageal squamous cell carcinoma (ESCC) and chemotherapy sensitivity. Methods: Five different region specimens isolated from primary tumor(R1~R5)and 1 specimen(R6)isolated from adjacent non-neoplastic tissue from 10 ESCC patients who underwent surgical treatment were cultured in vitro. The inhibitory effect of cisplatin on proliferation of ESCC cells from different regions was determined by methyl thiazolyl tetrazolium (MTT). The cell cycle and apoptosis induced by cisplatin was determined by flow cytometry (FCM) analysis...
September 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28926847/probing-the-stochastic-property-of-endoreduplication-in-cell-size-determination-of-arabidopsis-thaliana-leaf-epidermal-tissue
#15
Kensuke Kawade, Hirokazu Tsukaya
Cell size distribution is highly reproducible, whereas the size of individual cells often varies greatly within a tissue. This is obvious in a population of Arabidopsis thaliana leaf epidermal cells, which ranged from 1,000 to 10,000 μm2 in size. Endoreduplication is a specialized cell cycle in which nuclear genome size (ploidy) is doubled in the absence of cell division. Although epidermal cells require endoreduplication to enhance cellular expansion, the issue of whether this mechanism is sufficient for explaining cell size distribution remains unclear due to a lack of quantitative understanding linking the occurrence of endoreduplication with cell size diversity...
2017: PloS One
https://www.readbyqxmd.com/read/28926421/a-novel-hydroxyphenyl-hydrazone-derivate-ycl0426-inhibits-cancer-cell-proliferation-through-sequestering-iron
#16
Feifei Li, Long Long, Junhai Xiao, Chen Wang, Wei Li, Song Li, Changqi Zhao, Lili Wang
Cancer cells have an increased requirement for iron than normal cells, and iron chelators are under active consideration for cancer treatment. The metal-sequestering potential and antiproliferative mechanisms of a novel hydroxyphenyl hydrazone derivate YCL0426 were investigated here. Antiproliferative activity of YCL0426 was detected by MTT assay. The iron-sequestering potential was evaluated by ferrozine-Fe(II) sequestering assay and Fe(II) titration assay. Cell-cycle-arresting profile was checked by flow cytometry and the DNA synthesis status was evaluated by BrdU incorporation assay...
September 18, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28926402/reversing-hiv-latency-via-sphingosine-1-phosphate-receptor-1-signaling
#17
Charline Duquenne, Sandrine Gimenez, Adeline Guigues, Benjamin Viala, Caroline Boulouis, Clément Mettling, Damien Maurel, Noëlie Campos, Etienne Doumazane, Laetitia Comps-Agrar, Jamal Tazi, Laurent Prézeau, Pierre Corbeau, Vincent François
OBJECTIVE: In this study, we looked for a new family of latency reversing agents. DESIGN: We searched for G protein-coupled receptors (GPCR) coexpressed with CCR5 in primary CD4+ T cells that activate infected cells and boost HIV production. METHODS: GPCR coexpression was unveiled by RT-PCR. We used FRET to analyze the dimerization with CCR5 of the expressed GPCR. Viral entry was measured by flow cytometry, reverse transcription by quantitative PCR, NFkB translocation by immunofluorescence, LTR activation using a gene reporter assay, and viral production by p24 quantification...
September 18, 2017: AIDS
https://www.readbyqxmd.com/read/28926228/facile-synthesis-of-unique-cellulose-triacetate-based-flexible-and-high-performance-gel-polymer-electrolyte-for-lithium-ion-batteries
#18
Trupti Nirmale, Indrapal Karbhal, Ramchandra S Kalubarme, Manjusha V Shelke, Anjani J Varma, Bharat Bhanudas Kale
Lithium ion batteries (LIBs) with polymer based electrolytes have attracted huge attention due to the possibility of fabricating intrinsically safer and flexible devices. However, economical and eco-friendly sustainable technology is an oncoming challenge to fulfill the ever increasing demand. To circumvent this issue, we have developed gel polymer electrolyte (GPE) based on renewable polymers like cellulose triacetate (CTA) and poly (polyethylene glycol methacrylate) p(PEGMA) by using a photo polymerization technique...
September 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28926138/tnfaip8-regulates-hippo-pathway-through-interacting-with-lats1-to-promote-cell-proliferation-and-invasion-in-lung-cancer
#19
Yong Han, ZhongPing Tang, Yue Zhao, Qingchang Li, Enhua Wang
TNFAIP8 is associated with prognosis of several human malignancies. However, the molecular mechanism of TNFAIP8 in lung cancer remains unknown. In our study, we found TNFAIP8 could enhance TEAD luciferase activity and inhibits the activity of Hippo pathway. TNFAIP8 also increased cyclin D1, CDK6 and decreased p27 in lung cancer cells. In addition, TNFAIP8 increased total YAP protein and promoted nuclear localization of YAP. More importantly, YAP depletion blocked the role of TNFAIP8 on cell cycle-related proteins and TEAD luciferase activity, revealing that TNFAIP8 regulates Hippo pathway in a YAP-dependend manner...
September 19, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28926044/running-out-of-lithium-a-route-to-differentiate-between-capacity-losses-and-active-lithium-losses-in-lithium-ion-batteries
#20
Florian Holtstiege, Andrea Wilken, Martin Winter, Tobias Placke
Active lithium loss (ALL) resulting in a capacity loss (QALL), which is caused by lithium consuming parasitic reactions like SEI formation, is a major reason for capacity fading and, thus, for a reduction of the usable energy density of lithium-ion batteries (LIBs). QALL is often equated with the accumulated irreversible capacity (QAIC). However, QAIC is also influenced by non-lithium consuming parasitic reactions, which do not reduce the active lithium content of the cell, but induce a parasitic current. In this work, a novel approach is proposed in order to differentiate between QAIC and QALL...
September 19, 2017: Physical Chemistry Chemical Physics: PCCP
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