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https://www.readbyqxmd.com/read/29792947/trail-attenuates-sulforaphane-mediated-nrf2-and-sustains-ros-generation-leading-to-apoptosis-of-trail-resistant-human-bladder-cancer-cells
#1
Cheng-Yun Jin, Ilandarage Menu Neelaka Molagoda, Wisurumuni Arachchilage Hasitha Maduranga Karunarathne, Sang-Hyuck Kang, Cheol Park, Gi-Young Kim, Yung Hyun Choi
Tumor necrosis factor-related apoptosis inducing ligand (TRAIL) can preferentially initiate apoptosis in malignant cells with minimal toxicity to normal cells. Unfortunately, many human cancer cells are refractory to TRAIL-induced apoptosis through many unknown mechanisms. Here, we report that TRAIL resistance can be reversed in human bladder cancer cell lines by treatment with sulforaphane (SFN), a well-known chemopreventive isothiocyanate in various cruciferous vegetables. Combined treatment with SFN and TRAIL (SFN/TRAIL) significantly induced apoptosis concomitant with activation of caspases, loss of mitochondrial membrane potential (MMP), Bid truncation, and induction of death receptor 5...
May 21, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29792572/galnac-sirna-conjugates-leading-the-way-for-delivery-of-rnai-therapeutics
#2
Aaron D Springer, Steven F Dowdy
Short-interfering RNA (siRNA)-induced RNAi responses have great potential to treat a wide variety of human diseases from cancer to pandemic viral outbreaks to Parkinson's Disease. However, before siRNAs can become drugs, they must overcome a billion years of evolutionary defenses designed to keep invading RNAs on the outside cells from getting to the inside of cells. Not surprisingly, significant effort has been placed in developing a wide array of delivery technologies. Foremost of these has been the development of N-acetylgalactosamine (GalNAc) siRNA conjugates for delivery to liver...
May 24, 2018: Nucleic Acid Therapeutics
https://www.readbyqxmd.com/read/29792198/radioligand-therapy-of-metastatic-castration-resistant-prostate-cancer-current-approaches
#3
REVIEW
Zool Hilmi Awang, Markus Essler, Hojjat Ahmadzadehfar
Prostate Cancer is the forth most common type of cancer. Prostate-specific membrane antigen (PSMA) is anchored in the cell membrane of prostate epithelial cells. PSMA is highly expressed on prostate epithelial cells and strongly up-regulated in prostate cancer. Therefore it is an appropriate target for diagnostic and therapy of prostate cancer and its metastases. This article discusses several articles on radionuclide treatments in prostate cancer and the results on PSMA therapy with either beta or alpha emitters as a salvage therapy...
May 23, 2018: Radiation Oncology
https://www.readbyqxmd.com/read/29792170/liddle-s-like-syndrome-associated-with-nephrotic-syndrome-secondary-to-membranous-nephropathy-the-first-case-report
#4
Eriko Yamaguchi, Kazuhiro Yoshikawa, Izaya Nakaya, Karen Kato, Yoshikazu Miyasato, Terumasa Nakagawa, Yutaka Kakizoe, Masashi Mukoyama, Jun Soma
BACKGROUND: Liddle's syndrome is a rare monogenic form of hypertension caused by truncating or missense mutations in the C termini of the epithelial sodium channel (ENaC) β or γ subunits. Patients with this syndrome present with early onset of hypertension, hypokalemia, metabolic alkalosis, hyporeninemia and hypoaldosteronism, and a potassium-sparing diuretics (triamterene or amiloride) can drastically improves the disease condition. Although elderly patients having these characteristics were considered to have Liddle's syndrome or Liddle's-like syndrome, no previous report has indicated that Liddle's-like syndrome could be caused by nephrotic syndrome of primary glomerular disease, which is characterized by urinary excretion of > 3 g of protein/day plus edema and hypoalbuminemia, or has explained how the activity function of ENaC could be affected in the setting of high proteinuria...
May 23, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29791792/normalizing-tumor-microenvironment-based-on-photosynthetic-abiotic-biotic-nanoparticles
#5
Diwei Zheng, Bin Li, Lu Xu, Qiu-Ling Zhang, Jin-Xuan Fan, Chu-Xin Li, Xian-Zheng Zhang
Tumor hypoxia has attained the status of a core hallmark of cancer that globally affected the entire tumor phenotype. Reversing tumor hypoxia might offer alternative therapeutic opportunities for current anticancer therapies. In this research, a Photosynthetic Leaf-inspired Abiotic/biotic Nano-Thylakoid (PLANT) system was designed by fusing thylakoid membrane with synthetic nanoparticles for efficient O2 generation in vivo. Under 660 nm laser irradiation, PLANT system exhibited intracellular O2 generation and the anaerobic respiration of multicellular tumor spheroid was suppressed by PLANT as well...
May 23, 2018: ACS Nano
https://www.readbyqxmd.com/read/29790795/octa-arginine-modified-poly-amidoamine-dendrimers-for-improved-delivery-and-cytotoxic-effect-of-paclitaxel-in-cancer
#6
Sri Vishnu Kiran Rompicharla, Preeti Kumari, Balaram Ghosh, Swati Biswas
Cell penetrating peptides (CPP) have the ability to penetrate the cell membrane and have been associated with various cargos for their facile intracellular translocation. The current study involves the synthesis of a CPP, octa-arginine (R8)-modified poly(amidoamine) dendrimer of generation 4 (G4), which has additionally been PEGylated and conjugated to the poorly soluble anticancer drug, paclitaxel (PTX). The synthesized dendrimer conjugates were characterized by proton nuclear magnetic resonance (1H-NMR) Spectroscopy and zeta potential measurements and evaluated in vitro in cell monolayers and 3D spheroids...
May 23, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29790738/design-and-development-of-polysaccharide-doxorubicin-peptide-bioconjugates-for-dual-synergistic-effects-of-integrin-targeted-and-cell-penetrating-peptides-for-cancer-chemotherapy
#7
Alexandra A P Mansur, Sandhra Maria Carvalho, Zelia Ines Portela Lobato, Maria de Fátima Leite, Armando da Silva Cunha, Herman S Mansur
Polymer-drug conjugation is an attractive approach for target delivering insoluble and highly toxic drugs to tumor sites to overcome the side-effects caused by cancer chemotherapy. In this study we designed and synthesized novel polymer-drug-peptide conjugates for improved specificity on targeting cancer cells. Chemically modified polysaccharide, carboxymethylcellulose (CMC), was conjugated with doxorubicin (DOX) anticancer drug by amide bonds and dually biofunctionalized with integrin-target receptor tripeptide (RGD) and L-arginine (R) as cell-penetrating amino acid for synergistic targeting and enhancing internalization by cancer cells...
May 23, 2018: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/29790588/the-lncrna-casc9-and-rna-binding-protein-hnrnpl-form-a-complex-and-co-regulate-genes-linked-to-akt-signaling
#8
Marcel Klingenberg, Matthias Groß, Ashish Goyal, Maria Polycarpou-Schwarz, Thilo Miersch, Anne-Sophie Ernst, Jörg Leupold, Nitin Patil, Uwe Warnken, Heike Allgayer, Thomas Longerich, Peter Schirmacher, Michael Boutros, Sven Diederichs
The identification of viability-associated long non-coding RNAs (lncRNA) might be a promising rationale for new therapeutic approaches in liver cancer. Here, we applied the first RNAi screening approach in hepatocellular carcinoma (HCC) cell lines to find viability-associated lncRNAs. Among the multiple identified lncRNAs with a significant impact on HCC cell viability, we selected CASC9 (Cancer Susceptibility 9) due to the strength of its phenotype, expression, and upregulation in HCC versus normal liver. CASC9 regulated viability across multiple HCC cell lines as shown by CRISPR interference, single siRNA- and siPOOL-mediated depletion of CASC9...
May 23, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29790537/physical-defects-in-basement-membrane-mimicking-collagen-iv-matrices-trigger-cellular-emt-and-invasion
#9
Christopher Walter, Joshua T Davis, Jairaj Mathur, Amit Pathak
In fibrosis and cancer, degradation of basement membrane (BM) and cell invasion are considered as key outcomes of a cellular transformation called epithelial-mesenchymal transition (EMT). Here, we pose a converse question - can preexisting physical defects in the BM matrix cause EMT in normal epithelial cells? On a BM-mimicking matrix of collagen-IV-coated polyacrylamide (PA) gel, we have discovered a reverse phenomenon in which preexisting defects trigger EMT in normal epithelial cells. Through spatiotemporal measurements and simulations in silico, we demonstrate that the EMT precedes cellular mechanoactivation on defective matrices, but they occur concurrently on stiff matrices...
May 23, 2018: Integrative Biology: Quantitative Biosciences From Nano to Macro
https://www.readbyqxmd.com/read/29790094/isolation-of-cancer-stem-cells-from-squamous-cell-carcinoma
#10
Silvia Fontenete, Mirna Perez-Moreno
Different cancer stem cell (CSC) populations can be found in many types of cancer, including squamous cell carcinoma (SSC). Diverse reports showed that CSC play a crucial role in the relapse of different types of cancer. CSC sustains tumor growth due to their capacity to self-renew and their potential to initiate secondary tumors with metastatic cancer features. Therefore, the development of methods for the isolation of CSC is a key step to explore the mechanisms underlying CSC maintenance. In this chapter, we provide a method for isolating CSC from cutaneous SSC using immunofluorescence labeling to allow the specific purification of CSC by fluorescence-activated cell sorting (FACS)...
May 23, 2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29790063/in-vitro-and-in-vivo-evaluation-of-antitumor-activity-of-ligustrum-robustum-a-chinese-herbal-tea
#11
Hao-Jiang Zuo, Shan Liu, Chun Yan, Li-Man Li, Xiao-Fang Pei
OBJECTIVE: To examine the effect of the aqueous extract of Ligustrum robustum on tumor growth in vitro and in vivo and explore the possible molecular mechanisms. METHODS: In in vitro study, cell viabilities of human cervical carcinoma cells (HeLa), human breast cancer cells (MCF-7), human prostate cancer cells (PC-3), human hepatoma cells (7721) and human colon carcinoma cells (SW480) were evaluated with cell counting kit-8. For L. robustum-treated Hela cells, early or late apoptosis were evaluated by annexin V/PI staining...
May 22, 2018: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29789716/xct-slc7a11-mediated-metabolic-reprogramming-promotes-non-small-cell-lung-cancer-progression
#12
Xiangming Ji, Jun Qian, S M Jamshedur Rahman, Peter J Siska, Yong Zou, Bradford K Harris, Megan D Hoeksema, Irina A Trenary, Chen Heidi, Rosana Eisenberg, Jeffrey C Rathmell, Jamey D Young, Pierre P Massion
Many tumors increase uptake and dependence on glucose, cystine or glutamine. These basic observations on cancer cell metabolism have opened multiple new diagnostic and therapeutic avenues in cancer research. Recent studies demonstrated that smoking could induce the expression of xCT (SLC7A11) in oral cancer cells, suggesting that overexpression of xCT may support lung tumor progression. We hypothesized that overexpression of xCT occurs in lung cancer cells to satisfy the metabolic requirements for growth and survival...
May 23, 2018: Oncogene
https://www.readbyqxmd.com/read/29789524/hirsutine-induces-mptp-dependent-apoptosis-through-rock1-pten-pi3k-gsk3%C3%AE-pathway-in-human-lung-cancer-cells
#13
Rong Zhang, Guobing Li, Qian Zhang, Qin Tang, Jingbin Huang, Changpeng Hu, Yali Liu, Qing Wang, Wuyi Liu, Ning Gao, Shiwen Zhou
Hirsutine extracted from Uncaria rhynchophylla has been shown to exhibit anti-cancer activity. However, the molecular mechanism by which hirsutine exhibits anti-lung cancer activity remains unclear. In the present study, we showed that hirsutine induces apoptosis in human lung cancer cells via loss of mitochondrial membrane potential (∆ψm), adenosine triphosphate (ATP) depletion, ROS production, as well as cytochrome c release. Dephosphorylation of GSK3β is involved in hirsutine-mediated mitochondrial permeability transition pore (mPTP) opening through ANT1/CypD interaction...
May 22, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29789479/anandamide-revisited-how-cholesterol-and-ceramides-control-receptor-dependent-and-receptor-independent-signal-transmission-pathways-of-a-lipid-neurotransmitter
#14
REVIEW
Coralie Di Scala, Jacques Fantini, Nouara Yahi, Francisco J Barrantes, Henri Chahinian
Anandamide is a lipid neurotransmitter derived from arachidonic acid, a polyunsaturated fatty acid. The chemical differences between anandamide and arachidonic acid result in a slightly enhanced solubility in water and absence of an ionisable group for the neurotransmitter compared with the fatty acid. In this review, we first analyze the conformational flexibility of anandamide in aqueous and membrane phases. We next study the interaction of the neurotransmitter with membrane lipids and discuss the molecular basis of the unexpected selectivity of anandamide for cholesterol and ceramide from among other membrane lipids...
May 22, 2018: Biomolecules
https://www.readbyqxmd.com/read/29789419/detection-of-bladder-cancer-via-microfluidic-immunoassay-and-single-cell-dna-copy-number-alteration-analysis-of-captured-urinary-exfoliated-tumor-cells
#15
Anqi Chen, Guanghou Fu, Zhijie Xu, Yukun Sun, Xiaoyi Chen, Kok Suen Cheng, Kuang Hong Neoh, Zhewen Tang, Shifu Chen, Ming Liu, Tanxiao Huang, Yun Dai, Qibo Wang, Jing Jin, Baiye Jin, Ray P S Han
The increasing incidence of bladder cancer (BC) and its high rate of recurrence over a 5-year period necessitate the need for diagnosis and surveillance amelioration. Cystoscopy and urinary cytology are the current tools, and molecular techniques such as BTA stat, NMP22, survivin mRNA, and urovysion FISH have attracted attention, however, they suf-fer from insufficient sensitivity or specificity. We developed a novel microfluidic approach for harvesting intact urinary-exfoliated tumor cells (UETCs), either individually or in clus-ters, in a clean and segregated environment, which is crucial to minimize cross-contamination and misreads...
May 22, 2018: Cancer Research
https://www.readbyqxmd.com/read/29789418/juxtacrine-signaling-inhibits-antitumor-immunity-by-upregulating-pd-l1-expression
#16
Wen-Hao Yang, Jong-Ho Cha, Weiya Xia, Heng-Huan Lee, Li-Chuan Chan, Ying-Nai Wang, Jennifer L Hsu, Guoxin Ren, Mien-Chie Hung
Programmed death-ligand 1 (PD-L1) is a well-known immune checkpoint protein that helps cancer cells evade immune response. Anti-PD-L1 immune therapy has been approved for the treatment of several advanced human cancers. Therefore, further understanding of the regulatory mechanisms of PD-L1 is critical to improve PD-L1-targeting immunotherapy. Recent studies indicated that contact-dependent pathways may regulate anticancer immunity, highlighting the importance of cell contact-induced signaling in cancer immunity...
May 22, 2018: Cancer Research
https://www.readbyqxmd.com/read/29789295/integration-of-protein-phosphorylation-acetylation-and-methylation-data-sets-to-outline-lung-cancer-signaling-networks
#17
Mark Grimes, Benjamin Hall, Lauren Foltz, Tyler Levy, Klarisa Rikova, Jeremiah Gaiser, William Cook, Ekaterina Smirnova, Travis Wheeler, Neil R Clark, Alexander Lachmann, Bin Zhang, Peter Hornbeck, Avi Ma'ayan, Michael Comb
Protein posttranslational modifications (PTMs) have typically been studied independently, yet many proteins are modified by more than one PTM type, and cell signaling pathways somehow integrate this information. We coupled immunoprecipitation using PTM-specific antibodies with tandem mass tag (TMT) mass spectrometry to simultaneously examine phosphorylation, methylation, and acetylation in 45 lung cancer cell lines compared to normal lung tissue and to cell lines treated with anticancer drugs. This simultaneous, large-scale, integrative analysis of these PTMs using a cluster-filtered network (CFN) approach revealed that cell signaling pathways were outlined by clustering patterns in PTMs...
May 22, 2018: Science Signaling
https://www.readbyqxmd.com/read/29788873/one-molecule-many-targets-and-numerous-effects-the-pleiotropy-of-curcumin-lies-in-its-chemical-structure
#18
Mahdi Hatamipour, Thomas P Johnston, Amirhossein Sahebkar
Curcumin quite possibly represents one of the most diverse therapeutic agents yet isolated from natural sources. Therapeutic benefits of this extraordinary natural compound have been demonstrated during treatment of a variety of diseases, including cancer, inflammatory processes, immunological disorders, diabetes, and oxidative stress often associated with hyperlipidemia. Due to its unique molecular chemical structure and functional groups, curcumin may bind with and subsequently either inhibit or activate a variety of endogenous biomolecules, including enzymes, receptors, signaling molecules, metals, transcription factors, and even certain proteins located in cell membranes...
May 21, 2018: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29788725/tetramethylpyrazine-tmpz-triggers-s-phase-arrest-and-mitochondria-dependent-apoptosis-in-lung-cancer-cells
#19
H H Huang, F B Liu, Z Ruan, J Zheng, Y J Su, J Wang
Tetramethylpyrazine (TMPZ) is one of the active compounds extracted from the traditional Chinese herb Chuanxiong. Several studies have shown its anti-cancer properties. However, its functions in lung cancer and the underlying cellular mechanisms are relatively unknown. Our present study aimed to investigate the effects of TMPZ on A549 and 95D cells. The MTT assay showed that TMPZ decreased cell viability in a dose- and time-dependent manner. The results of the colony formation assay indicated that TMPZ strongly suppressed colony formation ability in A549 and 95D cells...
March 14, 2018: Neoplasma
https://www.readbyqxmd.com/read/29787991/synthetic-chalcones-as-potential-tool-for-acute-and-chronic-pain-control
#20
Lilian W Rocha, Daniele R Sonza, Milena Fronza Broering, Roberta Nunes, Fátima de Campos-Buzzi, Rogério Corrêa, Rangel L Silva, Thiago M Cunha, José Roberto Santin, Nara L M Quintão
The purpose of this study was to validate the potential anti-hypersensitive activity of two chalcones, (2E)-1-(4-aminophenyl)-3-(4-nitrophenyl)prop-2-en-1-one (ANCh) and N-{4-[(2E)-3-(4-nitrophenyl)prop-2-enoil]phenyl}acetamide (AcANCh), by different models of acute and persistent pain in mice, besides in silico analysis. Molecules computational investigation for prediction of Lipinki's and Veber's rules to determine solubility, % absorption, drug likeness and toxicity liabilities was performed. Male and female C57BL/6 mice (20-30 g, n = 6) were used...
May 19, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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