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https://www.readbyqxmd.com/read/28806822/-multiple-myeloma-current-status-in-diagnostic-testing-and-therapy
#1
Michael Kehrer, Sebastian Koob, Andreas Strauss, Dieter Christian Wirtz, Jan Schmolders
Background Multiple myeloma is a haematological blood cancer of the bone marrow and is classified by the World Health Organisation (WHO) as a plasma cell neoplasm. In multiple myeloma, normal plasma cells transform into malignant myeloma cells and produce large quantities of an abnormal immunoglobulin called monoclonal protein or M protein. This ultimately causes multiple myeloma symptoms such as bone damage or kidney problems. The annual worldwide incidence of multiple myeloma is estimated to be 6 - 7/100,000 and accounts for 1% of all cancer...
August 14, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28806777/a-synthetic-sickness-screen-for-senescence-re-engagement-targets-in-mutant-cancer-backgrounds
#2
Claire J Cairney, Lauren S Godwin, Alan E Bilsland, Sharon Burns, Katrina H Stevenson, Lynn McGarry, John Revie, Jon D Moore, Ceri M Wiggins, Rebecca S Collinson, Clare Mudd, Elpida Tsonou, Mahito Sadaie, Dorothy C Bennett, Masashi Narita, Christopher J Torrance, W Nicol Keith
Senescence is a universal barrier to immortalisation and tumorigenesis. As such, interest in the use of senescence-induction in a therapeutic context has been gaining momentum in the past few years; however, senescence and immortalisation remain underserved areas for drug discovery owing to a lack of robust senescence inducing agents and an incomplete understanding of the signalling events underlying this complex process. In order to address this issue we undertook a large-scale morphological siRNA screen for inducers of senescence phenotypes in the human melanoma cell line A375P...
August 14, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28806761/transcriptome-analysis-of-pdgfr%C3%AE-cells-identifies-t-type-ca2-channel-cacna1g-as-a-new-pathological-marker-for-pdgfr%C3%AE-cell-hyperplasia
#3
Se Eun Ha, Moon Young Lee, Masaaki Kurahashi, Lai Wei, Brian G Jorgensen, Chanjae Park, Paul J Park, Doug Redelman, Kent C Sasse, Laren S Becker, Kenton M Sanders, Seungil Ro
Platelet-derived growth factor receptor alpha (PDGFRα)+ cells are distributed into distinct morphological groups within the serosal, muscular, and submucosal layers as well as the myenteric and deep muscular plexi. PDGFRα+ cells directly interact with interstitial cells of Cajal (ICC) and smooth muscle cells (SMC) in gastrointestinal smooth muscle tissue. These three cell types, SMC, ICC, and PDGFRα+ cells (SIP cells), form an electrical syncytium, which dynamically regulates gastrointestinal motility. We have previously reported the transcriptomes of SMC and ICC...
2017: PloS One
https://www.readbyqxmd.com/read/28806747/low-lamin-a-expression-in-lung-adenocarcinoma-cells-from-pleural-effusions-is-a-pejorative-factor-associated-with-high-number-of-metastatic-sites-and-poor-performance-status
#4
Elise Kaspi, Diane Frankel, Julien Guinde, Sophie Perrin, Sophie Laroumagne, Andrée Robaglia-Schlupp, Kevin Ostacolo, Karim Harhouri, Rachid Tazi-Mezalek, Joelle Micallef, Hervé Dutau, Pascale Tomasini, Annachiara De Sandre-Giovannoli, Nicolas Lévy, Pierre Cau, Philippe Astoul, Patrice Roll
The type V intermediate filament lamins are the principal components of the nuclear matrix, including the nuclear lamina. Lamins are divided into A-type and B-type, which are encoded by three genes, LMNA, LMNB1, and LMNB2. The alternative splicing of LMNA produces two major A-type lamins, lamin A and lamin C. Previous studies have suggested that lamins are involved in cancer development and progression. A-type lamins have been proposed as biomarkers for cancer diagnosis, prognosis, and/or follow-up. The aim of the present study was to investigate lamins in cancer cells from metastatic pleural effusions using immunofluorescence, western blotting, and flow cytometry...
2017: PloS One
https://www.readbyqxmd.com/read/28806746/selective-small-chemical-inhibitors-of-protein-arginine-methyltransferase-5-with-anti-lung-cancer-activity
#5
Gui-Mei Kong, Min Yu, Zhongping Gu, Zhi Chen, Rui-Ming Xu, Deon O'Bryant, Zhengxin Wang
Protein arginine methyltransferase 5 (PRMT5) plays critical roles in a wide variety of biological processes, including tumorigenesis. By screening a library of small chemical compounds, we identified eight compounds that selectively inhibit the PRMT5 enzymatic activity, with IC50 values ranging from 0.1 to 6 μM. Molecular docking simulation and site-directed mutagenesis indicated that identified compounds target the substrate-binding site in PRMT5. Treatment of lung cancer cells with identified inhibitors led to inhibition of the symmetrical arginine methylation of SmD3 and histones and the cellular proliferation...
2017: PloS One
https://www.readbyqxmd.com/read/28806730/a-systems-approach-reveals-distinct-metabolic-strategies-among-the-nci-60-cancer-cell-lines
#6
Maike K Aurich, Ronan M T Fleming, Ines Thiele
The metabolic phenotype of cancer cells is reflected by the metabolites they consume and by the byproducts they release. Here, we use quantitative, extracellular metabolomic data of the NCI-60 panel and a novel computational method to generate 120 condition-specific cancer cell line metabolic models. These condition-specific cancer models used distinct metabolic strategies to generate energy and cofactors. The analysis of the models' capability to deal with environmental perturbations revealed three oxotypes, differing in the range of allowable oxygen uptake rates...
August 14, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28806703/nox4-mediated-ros-production-induces-apoptotic-cell-death-via-down-regulation-of-c-flip-and-mcl-1-expression-in-combined-treatment-with-thioridazine-and-curcumin
#7
Seung Un Seo, Tae Hwan Kim, Dong Eun Kim, Kyoung-Jin Min, Taeg Kyu Kwon
Thioridazine is known to have anti-tumor effects by inhibiting PI3K/Akt signaling, which is an important signaling pathway in cell survival. However, thioridazine alone does not induce apoptosis in head and neck squamous cell carcinoma (AMC-HN4), human breast carcinoma (MDA-MB231), and human glioma (U87MG) cells. Therefore, we investigated whether combined treatment with thioridazine and curcumin induces apoptosis. Combined treatment with thioridazine and curcumin markedly induced apoptosis in cancer cells without inducing apoptosis in human normal mesangial cells and human normal umbilical vein cells (EA...
August 9, 2017: Redox Biology
https://www.readbyqxmd.com/read/28806666/doxorubicin-loaded-environmentally-friendly-carbon-dots-as-a-novel-drug-delivery-system-for-nucleus-targeted-cancer-therapy
#8
Yifang Yuan, Bin Guo, Liying Hao, Na Liu, Yunfeng Lin, Wushuang Guo, Xiaoguang Li, Bin Gu
Chemotherapy is widely applied against various kinds of carcinoma. Generally, chemotherapeutic agents, such as Doxorubicin (DOX), Paclitaxel (PTX), 5-Fluorouracil (5-FU), Methotrexate (MTX), and Vinblastine (VLB) are combined with a view to maximizing their efficacy. Unfortunately, chemotherapeutics are indiscriminate and also kill normal healthy cells, resulting in serious side effects. This non-productive and destructive distribution of chemotherapeutics is regarded as one of the largest problems associated with chemotherapy...
July 10, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28806603/cancer-vaccines-in-the-era-of-checkpoint-blockade-the-magic-is-in-the-adjuvant
#9
REVIEW
Willem W Overwijk
While T cell checkpoint blockade therapy of various cancers yields impressive clinical benefits, most patients are not cured. This is thought to result from insufficient spontaneous tumor-specific T cell responses, a situation that could be remedied with cancer-specific vaccination. Much work is underway to identify cancer-specific antigens, leaving open the question of how to formulate these antigens in a manner that provokes potent cancer-specific T cell responses. In this review I discuss paradigms guiding adjuvant development, and consider what may constitutes a clinically relevant T cell response...
August 11, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/28806575/lessons-from-ctla-4-deficiency-and-checkpoint-inhibition
#10
REVIEW
Bernice Lo, Ussama M Abdel-Motal
CTLA-4 is a crucial negative regulator of immune responses. Absence of CTLA-4 in mice causes autoimmunity and lethal multiorgan lymphocytic infiltration and tissue destruction. Recently, heterozygous CTLA4 or biallelic LRBA mutations leading to functional CTLA-4 deficiency and autoimmunity have been discovered. LRBA was identified as a novel regulator of steady-state CTLA-4 protein levels in Tregs and activated T cells. CTLA-4 deficiency due to checkpoint blockade cancer immunotherapy has also been found to lead to autoimmune reactions...
August 11, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/28806542/outcome-of-patients-with-lung-adenocarcinoma-with-transformation-to-small-cell-lung-cancer-following-tyrosine-kinase-inhibitors-treatment-a-systematic-review-and-pooled-analysis
#11
REVIEW
Elisa Roca, Cristina Gurizzan, Vito Amoroso, William Vermi, Vittorio Ferrari, Alfredo Berruti
BACKGROUND: Lung adenocarcinoma can transform to small-cell lung cancer (SCLC) when resistance to tyrosine kinase inhibitors (TKIs) develops. This phenomenon has repeatedly been described in several case reports and small patient series. The characteristics and treatment outcomes of this population, however, have not been comprehensively reported. METHODS: We performed a systematic review of the published literature to obtain explorative information on the clinical and pathological features and prognosis of the reported cases...
July 31, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28806534/knockdown-of-snail-inhibits-epithelial-mesenchymal-transition-of-human-laryngeal-squamous-cell-carcinoma-hep-2-cells-through-vdr-signaling-pathway
#12
Xue Zhao, Dan Yu, Jingpu Yang, Kai Xue, Yan Liu, Chunshun Jin
It has been well-documented that Snail plays a decisive role in various tumors. However, the direct effect of Snail on laryngeal squamous cell carcinoma (LSCC) has not been elaborated. In this study, we firstly detected the expression of Snail in 14 samples of patients with LSCC and found that its content was high in cancer tissues compared with adjacent tissues. Then we established LSCC Hep-2 cells with Snail silencing and validated the knockdown efficiency by western blotting and real-time PCR. Results showed that silencing of Snail significantly inhibited the ability of adhesion, migration, and invasion of Hep-2 cells...
August 14, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28806522/development-of-a-recombinant-multifunctional-biomacromolecule-for-targeted-gene-transfer-to-prostate-cancer-cells
#13
Arash Hatefi, Zahra Karjoo, Alireza Nomani
The objective of this study was to genetically engineer a fully functional single chain fusion peptide composed of motifs from diverse biological and synthetic origins that can perform multiple tasks including DNA condensation, cell targeting, cell transfection, particle shielding from immune system and effective gene transfer to prostate tumors. To achieve the objective, a single chain biomacromolecule (vector) consisted of four repetative units of histone H2A peptide, fusogenic peptide GALA, short elastin-like peptide and PC-3 cell targeting peptide was designed...
August 14, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28806509/two-photon-probes-for-ph-detection-of-human-colon-cancer-using-two-photon-microscopy
#14
Seung Taek Hong, Tae Hyeong Kim, Ji-Woo Choi, Seong Jun Park, Sungan Kwon, Kyu Cheol Paik, Man So Han, Eun Sun Kim, Hoon Jai Chun, Jung-Nyoung Heo, Bong Rae Cho
We have developed two-photon (TP) pH-sensitive probes (BH-2 and BHEt-1) that exhibit absorption and emission maxima at 370 and 466 nm, and TP absorption cross-section values of 51 and 61 GM (1 GM = 10-50cm4s/photon), respectively, at 750 nm and pH 3.0 in a universal buffer (0.1 M citric acid, 0.1 M KH2PO4, 0.1 M Na2B4O7, 0.1 M Tris, 0.1 M KCl)/1,4-dioxane (7/3) solution. The TPM images of CCD-18co (a normal colon cell line) and HCT116 cells (a colon cancer cell line) labeled with BH-2 were too dim to be distinguished...
August 14, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28806504/designing-liposomes-to-suppress-extracellular-matrix-expression-to-enhance-drug-penetration-and-pancreatic-tumor-therapy
#15
Tianjiao Ji, Jiayan Lang, Jing Wang, Rong Cai, Yinlong Zhang, Feifei Qi, Lijing Zhang, Xiao Zhao, Wenjing Wu, Jihui Hao, Zhihai Qin, Ying Zhao, Guangjun Nie
During pancreatic tumor development, pancreatic stellate cells (PSCs) proliferate exuberantly to secrete extracellular matrix (ECM) in the tumor stroma, which presents major barriers for drug delivery and penetration in tumor tissue. Thus, down-regulating ECM levels via regulation of the PSCs may allow enhanced penetration of therapeutic drugs and thereby enhancing their therapeutic efficacy. To regulate the PSCs, a matrix metalloproteinase-2 (MMP-2) responsive peptide-hybrid liposome (MRPL) was constructed via co-assembly of a tailor-designed MMP-2 responsive amphiphilic peptide and phospholipids...
August 14, 2017: ACS Nano
https://www.readbyqxmd.com/read/28806476/dna-trojan-horses-the-self-assembled-floxuridine-containing-dna-polyhedra-for-cancer-therapy
#16
Quanbing Mou, Yuan Ma, Gaifang Pan, Bai Xue, Deyue Yan, Chuan Zhang, Xinyuan Zhu
Based on the structural similarity, herein, nucleoside analogue therapeutics were integrated into DNA strands through conventional solid-phase synthesis. By elaborately designing their sequences, floxuridine-integrated DNA strands were synthesized and self-assembled into well-defined DNA polyhedra with definite drug loading ratio as well as tunable size and morphology. As a novel drug delivery system, these drug-containing DNA polyhedra could ideally mimic the Trojan Horse to deliver chemotherapeutics into tumor cells and fight against cancer...
August 14, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28806401/a-gdf15-3-utr-variant-rs1054564-results-in-allele-specific-translational-repression-of-gdf15-by-hsa-mir-1233-3p
#17
Ming-Sheng Teng, Lung-An Hsu, Shu-Hui Juan, Wen-Chi Lin, Ming-Cheng Lee, Cheng-Wen Su, Semon Wu, Yu-Lin Ko
Growth differentiation factor 15 (GDF15) is a strong predictor of cardiovascular events and mortality in individuals with or without cardiovascular diseases. Single nucleotide polymorphisms (SNPs) in microRNA (miRNA) target sites, also known as miRSNPs, are known to enhance or weaken miRNA-mRNA interactions and have been linked to diseases such as cardiovascular disease and cancer. In this study, we aimed to elucidate the functional significance of the miRSNP rs1054564 in regulating GDF15 levels. Two rs1054564-containing binding sites for hsa-miR-873-5p and hsa-miR-1233-3p were identified in the 3' untranslated region (UTR) of the GDF15 transcript using bioinformatics tools...
2017: PloS One
https://www.readbyqxmd.com/read/28806396/inhibiting-myc-binding-to-the-e-box-dna-motif-by-me47-decreases-tumour-xenograft-growth
#18
L C Lustig, D Dingar, W B Tu, C Lourenco, M Kalkat, I Inamoto, R Ponzielli, W C W Chan, J A Shin, L Z Penn
Developing therapeutics to effectively inhibit the MYC oncoprotein would mark a key advance towards cancer patient care as MYC is deregulated in over 50% of human cancers. MYC deregulation is correlated with aggressive disease and poor patient outcome. Despite strong evidence in mouse models that inhibiting MYC would significantly impact tumour cell growth and patient survival, traditional approaches have not yet yielded the urgently needed therapeutic agents that directly target MYC. MYC functions through its interaction with MAX to regulate gene transcription by binding to E-box DNA response elements of MYC target genes...
August 14, 2017: Oncogene
https://www.readbyqxmd.com/read/28806395/rad6-promotes-dna-repair-and-stem-cell-signaling-in-ovarian-cancer-and-is-a-promising-therapeutic-target-to-prevent-and-treat-acquired-chemoresistance
#19
R R Somasagara, S M Spencer, K Tripathi, D W Clark, C Mani, L Madeira da Silva, J Scalici, H Kothayer, A D Westwell, R P Rocconi, K Palle
Ovarian cancer (OC) is the most deadly gynecological cancer and unlike most other neoplasms, survival rates for OC have not significantly improved in recent decades. We show that RAD6, an ubiquitin-conjugating enzyme, is significantly overexpressed in ovarian tumors and its expression increases in response to carboplatin chemotherapy. RAD6 expression correlated strongly with acquired chemoresistance and malignant behavior of OC cells, expression of stem cell genes and poor prognosis of OC patients, suggesting an important role for RAD6 in ovarian tumor progression...
August 14, 2017: Oncogene
https://www.readbyqxmd.com/read/28806394/smggds-is-a-transient-nucleolar-protein-that-protects-cells-from-nucleolar-stress-and-promotes-the-cell-cycle-by-regulating-dream-complex-gene-expression
#20
P Gonyo, C Bergom, A C Brandt, S-W Tsaih, Y Sun, T M Bigley, E L Lorimer, S S Terhune, H Rui, M J Flister, R M Long, C L Williams
The chaperone protein and guanine nucleotide exchange factor SmgGDS (RAP1GDS1) is a key promoter of cancer cell proliferation and tumorigenesis. SmgGDS undergoes nucleocytoplasmic shuttling, suggesting that it has both cytoplasmic and nuclear functions that promote cancer. Previous studies indicate that SmgGDS binds cytoplasmic small GTPases and promotes their trafficking to the plasma membrane. In contrast, little is known about the functions of SmgGDS in the nucleus, or how these nuclear functions might benefit cancer cells...
August 14, 2017: Oncogene
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