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Mesothelioma

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https://www.readbyqxmd.com/read/29150335/camptothecin-psammaplin-a-hybrids-as-topoisomerase-i-and-hdac-dual-action-inhibitors
#1
Raffaella Cincinelli, Loana Musso, Roberto Artali, Mario Guglielmi, Erminia Bianchino, Francesco Cardile, Fabiana Colelli, Claudio Pisano, Sabrina Dallavalle
Recent studies have demonstrated enhanced anticancer effects of combination therapy consisting of camptothecin derivatives and HDAC inhibitors. To exploit this synergy in a single active compound, we designed new dual-acting multivalent molecules simultaneously targeting topoisomerase I and HDAC. In particular, a selected compound containing a camptothecin and the psammaplin A scaffold showed a broad spectrum of antiproliferative activity, with IC50 values in the nanomolar range. Preliminary in vivo results indicated a strong antitumor activity on human mesothelioma primary cell line MM473 orthotopically xenografted in CD-1 nude mice and very high tolerability...
November 8, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29149911/the-analysis-of-novel-microrna-mimic-sequences-in-cancer-cells-reveals-lack-of-specificity-in-stem-loop-rt-qpcr-based-microrna-detection
#2
Patrick Winata, Marissa Williams, Eileen McGowan, Najah Nassif, Nico van Zandwijk, Glen Reid
OBJECTIVE: MicroRNAs are frequently downregulated in cancer, and restoring expression has tumour suppressive activity in tumour cells. Our recent phase I clinical trial investigated microRNA-based therapy in patients with malignant pleural mesothelioma. Treatment with TargomiRs, microRNA mimics with novel sequence packaged in EGFR antibody-targeted bacterial minicells, revealed clear signs of clinical activity. In order to detect delivery of microRNA mimics to tumour cells in future clinical trials, we tested hydrolysis probe-based assays specific for the sequence of the novel mimics in transfected mesothelioma cell lines using RT-qPCR...
November 17, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29148537/adenomatoid-tumors-of-the-male-and-female-genital-tract-are-defined-by-traf7-mutations-that-drive-aberrant-nf-kb-pathway-activation
#3
Benjamin Goode, Nancy M Joseph, Meredith Stevers, Jessica Van Ziffle, Courtney Onodera, Eric Talevich, James P Grenert, Iwei Yeh, Boris C Bastian, Joanna J Phillips, Karuna Garg, Joseph T Rabban, Charles Zaloudek, David A Solomon
Adenomatoid tumors are the most common neoplasm of the epididymis, and histologically similar adenomatoid tumors also commonly arise in the uterus and fallopian tube. To investigate the molecular pathogenesis of these tumors, we performed genomic profiling on a cohort of 31 adenomatoid tumors of the male and female genital tracts. We identified that all tumors harbored somatic missense mutations in the TRAF7 gene, which encodes an E3 ubiquitin ligase belonging to the family of tumor necrosis factor receptor-associated factors (TRAFs)...
November 17, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29147606/temporal-and-spatial-heterogeneity-of-programmed-cell-death-1-ligand-1-expression-in-malignant-mesothelioma
#4
Simone B S P Terra, Aaron S Mansfield, Haidong Dong, Tobias Peikert, Anja C Roden
Background: Programmed Cell Death 1-Ligand 1 (PD-L1) and Programmed Death Protein 1 (PD-1) blocking antibodies are promising immunotherapies for malignancies. We have previously shown PD-L1 expression in 40% of malignant mesothelioma (MM); however, the temporal and spatial heterogeneity of its expression has not been thoroughly studied. We compared PD-L1 expression between paired primary and metastatic MM. Design: Pathology files (1995-2016) were searched for MM with tissue from multiple sites and/or time points...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29145816/renal-failure-during-chemotherapy-renal-biopsy-for-assessing-subacute-nephrotoxicity-of-pemetrexed
#5
Maureen Assayag, Philippe Rouvier, Marion Gauthier, Ghania Costel, Philippe Cluzel, Lucile Mercadal, Gilbert Deray, Corinne Isnard Bagnis
BACKGROUND: Pemetrexed, a multitargeted antifolate cytotoxic agent, is currently used primarily in combination with cisplatin for metastatic non-small cell lung cancer and for malignant mesothelioma. Acute renal toxicity of pemetrexed has been recently described with polychemotherapy, in which the individual responsibility of each drug is difficult to establish. Only one recent report documents renal involvement in long-term exposed patients. CASE PRESENTATION: We report on a case of rapidly progressive nephropathy leading to the cessation of platinum salts and the secondary interruption of pemetrexed and bevacizumab...
November 16, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29142184/efficacy-of-cell-free-and-concentrated-ascites-reinfusion-therapy-for-palliative-care-in-a-patient-with-malignant-pleural-mesothelioma-a-case-report
#6
Kakeru Hisakane, Hironobu Ohmatsu, Shigeki Umemura, Keisuke Kirita, Shingo Matsumoto, Kiyotaka Yoh, Seiji Niho, Koichi Goto
Cell-free and concentrated ascites reinfusion therapy (CART) is recognized as a useful treatment to improve the symptoms caused by refractory ascites. Recently, a few clinical studies have reported the effects of CART for malignant ascites, especially in gynecological and gastrointestinal cancers. We report the case of malignant ascites in a patient with malignant pleural mesothelioma (MPM) whose symptoms were relieved by CART. A 59-year-old Japanese male with MPM who had undergone pleural decortication had pleural and peritoneal recurrence...
2017: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
https://www.readbyqxmd.com/read/29138529/matrix-metalloproteinases-polymorphisms-as-prognostic-biomarkers-in-malignant-pleural-mesothelioma
#7
Danijela Štrbac, Katja Goričar, Vita Dolžan, Viljem Kovač
Background: Malignant pleural mesothelioma (MPM) is a rare disease with a relatively short overall survival (OS). Metalloproteinases (MMPs) have a vast biological effect on tumor progression, invasion, metastasis formation, and apoptosis. MMP expression was previously associated with survival in MPM. Our aim was to evaluate if genetic variability of MMP genes could also serve as a prognostic biomarker in MPM. Methods: We genotyped 199 MPM patients for ten polymorphisms: rs243865, rs243849 and rs7201, in MMP2; rs17576, rs17577, rs20544, and rs2250889 in MMP9; and rs1042703, rs1042704, and rs743257 in MMP14...
2017: Disease Markers
https://www.readbyqxmd.com/read/29136695/-metastatic-epithelioid-hemangioendothelioma-of-peritoneum-with-florid-mesothelial-hyperplasia-mimicking-malignant-mesothelioma-report-of-a-case
#8
M Zhao, L L Yu, Q L Tang, X L He
No abstract text is available yet for this article.
November 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29132803/high-dose-irradiation-after-pleurectomy-decortication-or-biopsy-for-pleural-mesothelioma-treatment
#9
E Parisi, A Romeo, A Sarnelli, G Ghigi, S R Bellia, E Neri, S Micheletti, B Dipalma, D Arpa, G Furini, M A Burgio, G Genestreti, C Gurioli, S Sanna, P Bovolato, F Rea, G Storme, E Scarpi, C Arienti, A Tesei, R Polico
PURPOSE: The role played by radiation therapy after pleurectomy/decortication or surgical biopsy in malignant pleural mesothelioma is uncertain. We treated patients with accelerated hypofractionated radiotherapy using helical tomotherapy and intensity-modulated arc therapy in an attempt to keep lung toxicity to a minimum. The present study reports the feasibility and toxicity of this approach. MATERIAL AND METHODS: Between 2008 and 2012, 36 patients with malignant pleural mesothelioma underwent accelerated hypofractionated radiotherapy to the hemithorax after pleurectomy/decortication (19 patients) or biopsy (17 patients)...
November 10, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/29132802/-prophylactic-radiotherapy-in-a-single-fraction-of-10gy-at-intervention-pleural-site-in-patient-with-malignant-pleural-mesothelioma-a-retrospective-monocentric-cohort-study
#10
H Carette, J-C Faivre, J Salleron, A-S Baumann, L Uwer, C Clément-Duchêne, J-M Vignaud, I Petit, J Siat, A Tiotiu, V Beckendorf
PURPOSE: Prophylactic radiotherapy to prevent procedure-tracts metastases from malignant pleural mesothelioma remains controversial and clinical practice varies. The purpose was to assess the efficacy of local radiotherapy in a single fraction of 10Gy in preventing malignant seeding at intervention pleural site in patients with malignant pleural mesothelioma. MATERIAL AND METHODS: This is a retrospective cohort study, including patients with histological confirmed malignant pleural mesothelioma treated by prophylactic irradiation to prevent interventional site metastases with a unique fraction of 10Gy with 6 to 18MeV, from January 1990 to December 2013 in the institut de cancérologie de Lorraine (Nancy, France)...
November 10, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/29132764/muscle-involvement-in-long-term-malignant-pleural-mesothelioma
#11
Patricia Cruz Castellanos, Teresa González Merino, Javier de Castro Carpeño
No abstract text is available yet for this article.
November 10, 2017: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/29131723/comment-on-mesothelioma-from-asbestos-exposures-epidemiologic-patterns-and-impact-in-the-united-states-by-r-a-lemen-journal-of-toxicology-and-environmental-health-part-b-2016-19-250-265
#12
Corrado Magnani, Dario Mirabelli, Benedetto Terracini
No abstract text is available yet for this article.
November 13, 2017: Journal of Toxicology and Environmental Health. Part B, Critical Reviews
https://www.readbyqxmd.com/read/29129162/mesothelioma-in-australia-a-review
#13
Arthur Bill W Musk, Nicholas de Klerk, Fraser J Brims
The incidence of malignant mesothelioma in Australia is among the highest in the world as a result of widespread use of asbestos by industry and in construction throughout the 20th century. The risk of developing malignant mesothelioma after asbestos exposure is dose-related; a transient, low dose exposure confers a correspondingly very low risk of disease. Malignant mesothelioma is a heterogeneous disease, partly explaining the limited role of biomarkers in screening and diagnosis. The prognosis remains poor, and early advice on medico-legal compensation and a collaborative team approach to managing malignant mesothelioma are both essential...
November 20, 2017: Medical Journal of Australia
https://www.readbyqxmd.com/read/29127457/the-promise-and-challenges-of-exploiting-the-proton-coupled-folate-transporter-for-selective-therapeutic-targeting-of-cancer
#14
REVIEW
Larry H Matherly, Zhanjun Hou, Aleem Gangjee
This review considers the "promise" of exploiting the proton-coupled folate transporter (PCFT) for selective therapeutic targeting of cancer. PCFT was discovered in 2006 and was identified as the principal folate transporter involved in the intestinal absorption of dietary folates. The recognition that PCFT was highly expressed in many tumors stimulated substantial interest in using PCFT for cytotoxic drug targeting, taking advantage of its high level transport activity under the acidic pH conditions that characterize many tumors...
November 10, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/29126418/an-image-cytometric-technique-is-a-concise-method-to-detect-adenoviruses-and-host-cell-proteins-and-to-monitor-the-infection-and-cellular-responses-induced
#15
Takao Morinaga, Thảo Thi Thanh Nguyễn, Boya Zhong, Michiko Hanazono, Masato Shingyoji, Ikuo Sekine, Yuji Tada, Koichiro Tatsumi, Hideaki Shimada, Kenzo Hiroshima, Masatoshi Tagawa
BACKGROUND: Genetically modified adenoviruses (Ad) with preferential replications in tumor cells have been examined for a possible clinical applicability as an anti-cancer agent. A simple method to detect viral and cellular proteins is valuable to monitor the viral infections and to predict the Ad-mediated cytotoxicity. METHODS: We used type 5 Ad in which the expression of E1A gene was activated by 5'-regulatory sequences of genes that were augmented in the expression in human tumors...
November 10, 2017: Virology Journal
https://www.readbyqxmd.com/read/29124998/evaluation-of-the-presence-of-asbestos-in-cosmetic-talcum-products
#16
Jennifer S Pierce, Alexander S Riordan, Eric W Miller, Shannon H Gaffney, Dana M Hollins
Talc has been used for over a century in a variety of cosmetic products. While pure cosmetic talc (free of asbestos) is not considered a risk factor for mesothelioma, it has been recently suggested that inhalation of cosmetic talc containing trace levels of asbestos is a risk factor for mesothelioma. Bulk analyses of cosmetic talcum products were performed in the 1960s and 1970s, however, the analytical methods used at that time were incapable of determining whether asbestos minerals were present in the asbestiform versus non-asbestiform habit...
August 2017: Inhalation Toxicology
https://www.readbyqxmd.com/read/29124996/a-30-year-mortality-and-respiratory-morbidity-study-of-refractory-ceramic-fiber-workers
#17
Grace LeMasters, James E Lockey, Timothy J Hilbert, Linda S Levin, Jeff W Burkle, Ralph Shipley, Charles Perme, Cristopher A Meyer, Carol H Rice
AIM: Report mortality (n = 1119), cancer incidence (n = 1207) and radiographic (n = 1451) findings from a 30-year investigation of current and former refractory ceramic fiber (RCF) workers. METHODS: Cause of death, health and work histories, radiographs and spirometry were collected. Mortality and cancer incidence were analyzed. Logistic regression analysis investigated the associations of latency and cumulative fiber exposure (CFE) on radiographic changes...
August 2017: Inhalation Toxicology
https://www.readbyqxmd.com/read/29118480/cytological-profile-of-a-case-of-malignant-mesothelioma-of-pleura-with-supraclavicular-lymph-node-metastasis
#18
P V Priya, S Deepa, P L Jayalakshmy
Malignant mesothelioma of pleura is a locally aggressive rare neoplasm of mesothelial cells, which produces distant metastasis in advanced stages of its course. It is exceptional for patients to present with metastasis prior to the detection of primary tumor in the pleura. Here, we report a case of malignant mesothelioma of pleura in a 65-year-old quarry worker where the initial diagnosis was offered by fine needle aspiration of an enlarged supraclavicular lymph node. Subsequent pleural fine needle aspiration cytology (FNAC), tumor biopsy, and immunohistochemical analysis confirmed the diagnosis...
October 2017: Journal of Cytology
https://www.readbyqxmd.com/read/29116477/4egi-1-represses-cap-dependent-translation-and-regulates-genome-wide-translation-in-malignant-pleural-mesothelioma
#19
Arpita De, Blake A Jacobson, Mark S Peterson, Joe Jay-Dixon, Marian G Kratzke, Ahad A Sadiq, Manish R Patel, Robert A Kratzke
Deregulation of cap-dependent translation has been implicated in the malignant transformation of numerous human tissues. 4EGI-1, a novel small-molecule inhibitor of cap-dependent translation, disrupts formation of the eukaryotic initiation factor 4F (eIF4F) complex. The effects of 4EGI-1-mediated inhibition of translation initiation in malignant pleural mesothelioma (MPM) were examined. 4EGI-1 preferentially inhibited cell viability and induced apoptosis in MPM cells compared to normal mesothelial (LP9) cells...
November 8, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/29113949/dysregulated-expression-of-the-microrna-mir-137-and-its-target-yb-1-contribute-to-the-invasive-characteristics-of-malignant-pleural-mesothelioma
#20
Thomas G Johnson, Karin Schelch, Yuen Y Cheng, Marissa Williams, Kadir H Sarun, Michaela B Kirschner, Steven Kao, Anthony Linton, Sonja Klebe, Brian C McCaughan, Ruby Cy Lin, Christine Pirker, Walter Berger, Annette Lasham, Nico van Zandwijk, Glen Reid
BACKGROUND: Malignant pleural mesothelioma (MPM) is an aggressive malignancy linked to asbestos exposure. On a genomic level, MPM is characterised by frequent chromosomal deletions of tumour suppressors, including microRNAs. MiR-137 plays a tumour suppressor role in other cancers, so the aim of this study was to characterise it and its target Y-box binding protein-1 (YB-1) in MPM. BASIC PROCEDURES: Expression, methylation and copy number status of miR-137 and its host gene MIR137HG were assessed by PCR...
November 4, 2017: Journal of Thoracic Oncology
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