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https://www.readbyqxmd.com/read/29150959/nono-ubiquitination-is-mediated-by-fbw7-and-gsk3-%C3%AE-via-a-degron-lost-upon-chromosomal-rearrangement-in-cancer
#1
Luigi Alfano, Antonella Caporaso, Angela Altieri, Caterina Costa, Iris M Forte, Carmelina A Iannuzzi, Daniela Barone, Luca Esposito, Antonio Giordano, Francesca Pentimalli
NONO is an RNA-binding protein involved in transcription, mRNA splicing, DNA repair and checkpoint activation in response to UV radiation. NONO expression has been found altered in several tumour types, including prostate, colon, breast, melanoma and in papillary renal carcinoma, in which an X chromosome inversion generates a NONO-TFE3 fusion protein. Upon such rearrangement, NONO loses its C-terminal domain. Through bioinformatics analysis, we identified a putative degron motif, known to be recognized by the Skp1-Cul1-F-box-protein (SCF) complex...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29145037/time-to-diagnosis-and-treatment-for-cancer-patients-in-the-netherlands-room-for-improvement
#2
Charles C W Helsper, Nicole N F van Erp, Petra P H M Peeters, Niek N J de Wit
BACKGROUND & AIM: Reducing the duration of the diagnostic cancer care pathway is intensively pursued. The aim of this study was to chart the diagnostic pathway for the five most common cancers in the Netherlands. METHODS: A retrospective cohort study using cancer patients' anonymised primary care data (free text and coded) linked to the Netherlands Cancer Registry. We determined the median duration of the following: 1. Primary care intervals (IPCs): the first cancer-related general practitioner consultation to referral, 2...
November 13, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29144507/the-fragile-x-mental-retardation-protein-regulates-tumor-invasiveness-related-pathways-in-melanoma-cells
#3
Francesca Zalfa, Vincenzo Panasiti, Simone Carotti, Maria Zingariello, Giuseppe Perrone, Laura Sancillo, Laura Pacini, Flavie Luciani, Vincenzo Roberti, Silvia D'Amico, Rosa Coppola, Simona Osella Abate, Rosa Alba Rana, Anastasia De Luca, Mark Fiers, Valentina Melocchi, Fabrizio Bianchi, Maria Giulia Farace, Tilmann Achsel, Jean-Christophe Marine, Sergio Morini, Claudia Bagni
The fragile X mental retardation protein (FMRP) is lacking or mutated in patients with the fragile X syndrome (FXS), the most frequent form of inherited intellectual disability. FMRP affects metastasis formation in a mouse model for breast cancer. Here we show that FMRP is overexpressed in human melanoma with high Breslow thickness and high Clark level. Furthermore, meta-analysis of the TCGA melanoma data revealed that high levels of FMRP expression correlate significantly with metastatic tumor tissues, risk of relapsing and disease-free survival...
November 16, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29143535/cytotoxic-triterpene-saponins-from-the-mangrove-aegiceras-corniculatum
#4
Le Ba Vinh, Nguyen Thi Minh Nguyet, Seo Young Yang, Jang Hoon Kim, Nguyen Van Thanh, Nguyen Xuan Cuong, Nguyen Hoai Nam, Chau Van Minh, Inkyu Hwang, Young Ho Kim
Using various chromatographic separations, sixteen compounds, including one new triterpene saponin named aegicoroside A (1), were isolated from the leaves of the Vietnamese mangrove Aegiceras corniculatum. Their structures were determined by spectroscopic methods such as 1D and 2D NMR and HR-ESI-MS. The cytotoxic activities of the isolated compounds against MCF7 (breast), HCT116 (colon), B16F10 (melanoma), and A549 (adenocarcinoma) cancer cell lines were also evaluated. Strong cytotoxicity was observed for sakurasosaponin (2) against all four cancer cell lines and for sakurasosaponin methyl ester (3) against MCF7, A549, and HCT116 cell lines with IC50 values ranging from 2...
November 16, 2017: Natural Product Research
https://www.readbyqxmd.com/read/29135975/transcriptomic-profiling-of-human-breast-and-melanoma-cells-selected-by-migration-through-narrow-constraints
#5
Dominika A Rudzka, William Clark, Ann Hedley, Gabriela Kalna, Michael F Olson
The metastatic spread of cancer cells is a step-wise process that starts with dissociation from primary tumours and local invasion of adjacent tissues. The ability to invade local tissues is the product of several processes, including degradation of extracellular matrices (ECM) and movement of tumour cells through physically-restricting gaps. To identify properties contributing to tumour cells squeezing through narrow gaps, invasive MDA-MB-231 human breast cancer and MDA-MB-435 human melanoma cells were subjected to three successive rounds of selection using cell culture inserts with highly constraining 3 μm pores...
November 14, 2017: Scientific Data
https://www.readbyqxmd.com/read/29135607/targeting-the-perivascular-niche-in-brain-tumors
#6
Giorgio Seano
PURPOSE OF REVIEW: Brain tumors are composed of primary tumors of the central nervous system, such us glioblastoma (GBM), and secondary metastatic tumors, such as melanoma, non-Hodgkin lymphoma as well as lung and breast cancers. Brain tumors are highly deadly, and unfortunately not many improvements have been achieved to improve the survival of patients with brain tumors. Chemoradiation resistance is one of the most clinically relevant challenges faced in patients with brain tumors. The perivascular niche is one of the most relevant microenvironment hubs in brain tumors...
November 14, 2017: Current Opinion in Oncology
https://www.readbyqxmd.com/read/29135571/validation-of-cancer-cases-using-primary-care-cancer-registry-and-hospitalization-data-in-the-uk
#7
Andrea V Margulis, Joan Fortuny, James A Kaye, Brian Calingaert, Maria Reynolds, Estel Plana, Lisa J McQuay, Willem Jan Atsma, Billy Franks, Stefan de Vogel, Susana Perez-Gutthann, Alejandro Arana
BACKGROUND: In the United Kingdom, hospital or cancer registry data can be linked to electronic medical records for a subset of general practices and years. METHODS: We used Clinical Practice Research Datalink data (2004-2012) from patients treated for overactive bladder. We electronically identified provisional cases of 10 common cancers in General Practitioner Online Database data and validated them by medical profile review. In practices with linkage to Hospital Episodes Statistics and National Cancer Data Repository (2004-2010), we validated provisional cancer cases against these data sources...
November 9, 2017: Epidemiology
https://www.readbyqxmd.com/read/29135534/the-multiple-faces-of-programmed-cell-death-ligand-1-expression-in-malignant-and-nonmalignant-cells
#8
Edwin R Parra, Pamela Villalobos, Jaime Rodriguez-Canales
Preliminary data suggest that tumor expression of programmed cell death ligand 1 (PD-L1) protein in human cancers, as determined by immunohistochemistry in formalin-fixed, paraffin-embedded tissue samples, may predict clinical response to anti-PD-1/PD-L1 therapy. PD-L1 is not a specific tumor marker and its expression is also observed in various nonmalignant cells, such as macrophages and lymphocytes, causing confusion in immunohistochemistry analysis when these inflammatory cells are overlapping with tumors cells...
November 13, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/29133049/design-and-synthesis-of-novel-c14-urea-tetrandrine-derivatives-with-potent-anti-cancer-activity
#9
Junjie Lan, Lan Huang, Huayong Lou, Chao Chen, Tangjingjun Liu, Shengcao Hu, Yao Yao, Junrong Song, Jun Luo, Yazhou Liu, Bin Xia, Lei Xia, Xueyi Zeng, Yaacov Ben-David, Weidong Pan
Tetrandrine is a dibenzyltetrahydroisoquinoline alkaloid, isolated from traditional Chinese medicinal plant Stephania tetrandra, with anti-tumor activity. Our previous study identified several derivatives of tetrandrine showing better activities than parental compound against human hepatocellular carcinoma cells. To increase diversity and cytotoxic activities of the original compound, a series of novel 14-urea-tetrandrine derivatives were synthesized through structural modification of tetrandrine. These derivaties demonstrated a moderate to strong anti-proliferative activities against human cell lines HEL and K562 (Leukemia), prostate (PC3), breast (MDA-MB-231) and melanoma (WM9)...
November 6, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29125427/the-surgical-treatment-of-metastatic-spine-tumors-within-the-intramedullary-compartment
#10
Ben A Strickland, Ian E McCutcheon, Indro Chakrabarti, Laurence D Rhines, Jeffrey S Weinberg
OBJECTIVE Metastasis to the spinal cord is rare, and optimal management of this disease is unclear. The authors investigated this issue by analyzing the results of surgical treatment of spinal intramedullary metastasis (IM) at a major cancer center. METHODS The authors retrospectively reviewed the medical records of 13 patients who underwent surgery for IM. Patients had renal cell carcinoma (n = 4), breast carcinoma (n = 3), melanoma (n = 2), non-small cell lung cancer (n = 1), sarcoma (n = 1), adenoid cystic carcinoma (n = 1), and cervical cancer (n = 1)...
November 10, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29125193/exposure-to-a-specific-time-varying-electromagnetic-field-inhibits-cell-proliferation-via-camp-and-erk-signaling-in-cancer-cells
#11
Carly A Buckner, Alison L Buckner, Stan A Koren, Michael A Persinger, Robert M Lafrenie
Exposure to specific electromagnetic field (EMF) patterns can affect a variety of biological systems. We have shown that exposure to Thomas-EMF, a low-intensity, frequency-modulated (25-6 Hz) EMF pattern, inhibited growth and altered cell signaling in malignant cells. Exposure to Thomas-EMF for 1 h/day inhibited the growth of malignant cells including B16-BL6 mouse melanoma cells, MDA-MB-231, MDA-MB-468, BT-20, and MCF-7 human breast cancer and HeLa cervical cancer cells but did not affect non-malignant cells...
November 10, 2017: Bioelectromagnetics
https://www.readbyqxmd.com/read/29118259/matrix-binding-checkpoint-immunotherapies-enhance-antitumor-efficacy-and-reduce-adverse-events
#12
Jun Ishihara, Kazuto Fukunaga, Ako Ishihara, Hans M Larsson, Lambert Potin, Peyman Hosseinchi, Gabriele Galliverti, Melody A Swartz, Jeffrey A Hubbell
Immune checkpoint blockade exhibits considerable antitumor activity, but previous studies have reported instances of severe treatment-related adverse events. We sought to explore local immune checkpoint blockade, with an antibody (Ab) form that would be retained intra- or peritumorally, limiting systemic exposure. To accomplish this, we conjugated the checkpoint blockade Abs to an extracellular matrix (ECM)-super-affinity peptide derived from placenta growth factor-2 (PlGF-2123-144). We show enhanced tissue retention and lower Ab concentrations in blood plasma after PlGF-2123-144 conjugation, reducing systemic side effects such as the risk of autoimmune diabetes...
November 8, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/29117113/design-synthesis-and-anticancer-evaluation-of-fangchinoline-derivatives
#13
Yazhou Liu, Bin Xia, Junjie Lan, Shengcao Hu, Lan Huang, Chao Chen, Xueyi Zeng, Huayong Lou, Changhu Lin, Weidong Pan
Twenty fangchinoline derivatives were synthesized from the natural product fangchinoline, and their anticancer activities on human breast cancer MDA-MB-231 cell line, human prostate cancer PC3 cell line, human melanoma WM9 cell line and human leukaemia HEL and K562 cell lines were evaluated. The biological result showed that those derivatives exhibited potent activities on inhibiting cancer cell growth, and the structure-activity relationships were investigated. Among them, compound 4g, which was protected by benzoyl group in 7-phenolic position and nitrified in 14-position, showed impressive inhibition on all 5 cancer cell lines, especially WM9 cell line, with an IC50 value of 1...
November 8, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29116108/precision-targeting-of-tumor-macrophages-with-a-cd206-binding-peptide
#14
Pablo Scodeller, Lorena Simón-Gracia, Sergei Kopanchuk, Allan Tobi, Kalle Kilk, Pille Säälik, Kaarel Kurm, Mario Leonardo Squadrito, Venkata Ramana Kotamraju, Ago Rinken, Michele De Palma, Erkki Ruoslahti, Tambet Teesalu
Tumor-associated macrophages (TAMs) expressing the multi-ligand endocytic receptor mannose receptor (CD206/MRC1) contribute to tumor immunosuppression, angiogenesis, metastasis, and relapse. Here, we describe a peptide that selectively targets MRC1-expressing TAMs (MEMs). We performed in vivo peptide phage display screens in mice bearing 4T1 metastatic breast tumors to identify peptides that target peritoneal macrophages. Deep sequencing of the peptide-encoding inserts in the selected phage pool revealed enrichment of the peptide CSPGAKVRC (codenamed "UNO")...
November 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29113324/unfolded-protein-response-signaling-impacts-macrophage-polarity-to-modulate-breast-cancer-cell-clearance-and-melanoma-immune-checkpoint-therapy-responsiveness
#15
David R Soto-Pantoja, Adam S Wilson, Kenysha Yj Clear, Brian Westwood, Pierre L Triozzi, Katherine L Cook
The unfolded protein response (UPR) is a stress pathway controlled by GRP78 to mediate IRE1, PERK, and ATF6 signaling. We show that targeting GRP78, IRE1, and PERK differentially regulates macrophage polarization. Specifically, PERK targeting enhanced macrophage proliferation and macrophage-mediated killing but not GRP78 or IRE1. Targeting UPR in cancer cells also differentially affected macrophage cytolytic capacity. Tumoral IRE1 or GRP78 inhibition enhanced macrophage-mediated cancer cell clearance. Conditioned media from GRP78-silenced cancer cells caused reciprocal regulation of CD80 and CD206, suggesting control of plasticity by secreted factors...
October 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/29110637/constitutional-mutation-in-cdkn2a-is-associated-with-long-term-survivorship-in-multiple-myeloma-a-case-report
#16
Vallari Shah, Kevin D Boyd, Richard S Houlston, Martin F Kaiser
BACKGROUND: Multiple Myeloma is a cancer of plasma cells associated with significantly reduced survival. Long term survivorship from myeloma is very rare and despite advances in its treatment the disease is generally considered incurable. We report a patient diagnosed with myeloma carrying a germline mutation of a tumour suppressor gene who has effectively been cured. CASE PRESENTATION: A 36-year-old woman was diagnosed with IgG lambda myeloma in 1985. She was treated with melphalan chemotherapy followed by high-dose melphalan and autologous stem cell rescue and since remained in complete remission despite not having received any additional therapy...
November 6, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29108691/spatial-variation-in-cancer-incidence-and-survival-over-time-across-queensland-australia
#17
Susanna M Cramb, Paula Moraga, Kerrie L Mengersen, Peter D Baade
Interpreting changes over time in small-area variation in cancer survival, in light of changes in cancer incidence, aids understanding progress in cancer control, yet few space-time analyses have considered both measures. Bayesian space-time hierarchical models were applied to Queensland Cancer Registry data to examine geographical changes in cancer incidence and relative survival over time for the five most common cancers (colorectal, melanoma, lung, breast, prostate) diagnosed during 1997-2004 and 2005-2012 across 516 Queensland residential small-areas...
November 2017: Spatial and Spatio-temporal Epidemiology
https://www.readbyqxmd.com/read/29108231/trpm5-mediates-acidic-extracellular-ph-signaling-and-trpm5-inhibition-reduces-spontaneous-metastasis-in-mouse-b16-bl6-melanoma-cells
#18
Toyonobu Maeda, Atsuko Suzuki, Kaori Koga, Chihiro Miyamoto, Yojiro Maehata, Shigeyuki Ozawa, Ryu-Ichiro Hata, Yoji Nagashima, Kazuki Nabeshima, Kaoru Miyazaki, Yasumasa Kato
Extracellular acidity is a hallmark of solid tumors and is associated with metastasis in the tumor microenvironment. Acidic extracellular pH (pH e ) has been found to increase intracellular Ca(2+) and matrix metalloproteinase-9 (MMP-9) expression by activating NF-κB in the mouse B16 melanoma model. The present study assessed whether TRPM5, an intracellular Ca(2+)-dependent monovalent cation channel, is associated with acidic pH e signaling and induction of MMP-9 expression in this mouse melanoma model. Treatment of B16 cells with Trpm5 siRNA reduced acidic pH e -induced MMP-9 expression...
October 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29107018/flubendazole-induces-mitotic-catastrophe-and-apoptosis-in-melanoma-cells
#19
K Čáňová, L Rozkydalová, D Vokurková, E Rudolf
Flubendazole (FLU) is a widely used anthelmintic drug belonging to benzimidazole group. Recently, several studies have been published demonstrating its potential to inhibit growth of various tumor cells including those derived from colorectal cancer, breast cancer or leukemia via several mechanisms. In the present study we have investigated cytotoxic effects of FLU on malignant melanoma using A-375, BOWES and RPMI-7951 cell lines representing diverse melanoma molecular types. In all three cell lines, FLU inhibited cell growth and proliferation and disrupted microtubule structure and function which was accompanied by dramatic changes in cellular morphology...
October 26, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/29106060/attitudes-of-patients-with-metastatic-cancer-towards-research-biopsies
#20
Danielle H Robinson, Leonid Churilov, Nancy U Lin, Elgene Lim, Davinia Seah
AIM: To evaluate the attitudes of patients with different cancers towards research biopsies outside a clinical trial. METHODS: Patients with metastatic cancer completed a questionnaire that assessed patients' willingness to consider research biopsies. Research biopsies were divided into two groups: biopsies performed as stand-alone procedures (research purposes only biopsy, RPOB) or performed during a clinically indicated biopsy (additional pass biopsy, APB). Factors analyzed included biopsy timing, biopsy site, sociodemographic information and information about prior trial participation...
November 6, 2017: Asia-Pacific Journal of Clinical Oncology
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