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https://www.readbyqxmd.com/read/29145037/time-to-diagnosis-and-treatment-for-cancer-patients-in-the-netherlands-room-for-improvement
#1
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/29136392/rescue-effect-inherited-in-colony-formation-assays-affects-radiation-response
#2
Gabriel Adrian, Crister Ceberg, Ana Carneiro, Lars Ekblad
It is well known that nonirradiated cells can exhibit radiation damage (bystander effect), and recent findings have shown that nonirradiated cells may help protect irradiated cells (rescue effect). These findings call into question the traditional view of radiation response: cells cannot be envisioned as isolated units. Here, we investigated traditional colony formation assays to determine if they also comprise cellular communication affecting the radiation response, using colony formation assays with varying numbers of cells, modulated beam irradiation and media transfer...
November 14, 2017: Radiation Research
https://www.readbyqxmd.com/read/29133049/design-and-synthesis-of-novel-c14-urea-tetrandrine-derivatives-with-potent-anti-cancer-activity
#3
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/29117113/design-synthesis-and-anticancer-evaluation-of-fangchinoline-derivatives
#4
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/29109964/immunotherapy-as-a-promising-treatment-for-prostate-cancer-a-systematic-review
#5
REVIEW
Marlena Janiczek, Łukasz Szylberg, Anna Kasperska, Adam Kowalewski, Martyna Parol, Paulina Antosik, Barbara Radecka, Andrzej Marszałek
Prostate cancer treatment is currently based on surgical removal, radiotherapy, and hormone therapy. In recent years, another therapeutic method has emerged-immunological treatment. Immunotherapy modulates and strengthens one's immune responses against cancer. Neoplastic cells naturally escape from the control of the immune system, and the main goal of immune therapy is to bring the control back. Satisfying outcomes after treatment of advanced melanoma and lung cancer suggest a great potential of immunotherapy as an approach for other tumors' treatment, especially in patients primarily introduced to palliative care...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/29108691/spatial-variation-in-cancer-incidence-and-survival-over-time-across-queensland-australia
#6
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/29106060/attitudes-of-patients-with-metastatic-cancer-towards-research-biopsies
#7
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
https://www.readbyqxmd.com/read/29065840/design-synthesis-and-evaluation-of-2-pyridinyl-methylene-1-tetralone-chalcones-for-anticancer-and-antimicrobial-activity
#8
Maya Z Gibson, Minh A Nguyen, Sarah K Zingales
BACKGROUND: Chalcones, natural products produced by plants as a natural defense mechanisms against various pathogens, are molecules with structures that include two aromatic rings joined by an α, β unsaturated carbonyl system. Previous research has demonstrated that chalcones exhibit a wide variety of biological activities, including anticancer, antifungal, and antibiotic properties. OBJECTIVE: Our goal is to synthesize novel heterocyclic-containing chalcones and have their biological activities evaluated...
October 20, 2017: Medicinal Chemistry
https://www.readbyqxmd.com/read/29065820/recent-advances-in-antabuse-disulfiram-the-importance-of-its-metal-binding-ability-to-its-anticancer-activity
#9
Maricela Viola-Rhenals, Kush Rohit Patel, Laura Jaimes-Santamaria, Guojun Wu, Jinbao Liu, Q Ping Dou
Disulfiram (DSF, also called tetraethylthiuram disulphide), a disulfide derivative of N,N-diethyldithiocarbamate (DEDTC), is an antialcoholism drug that is currently being repurposed as a promising anticancer drug. DSF has been investigated in many studies, including in vitro, in vivo, preclinical and clinical. Various mechanisms have been proposed to be responsible for the cytotoxic effect of DSF on cancer cells. DSF is a pro-drug which is converted to its metabolite DEDTC in human body. A complex of DEDTC with a metal ion [usually Cu(II) or Zn(II)] could be responsible for the anticancer activity of DSF in breast, prostate, glioblastoma, lung, melanoma, cervical, colorectal cancers as well as myeloma and leukemia...
October 23, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29061454/malignant-peripheral-nerve-sheath-tumor-in-a-patient-with-bap1-tumor-predisposition-syndrome-case-report
#10
Megan C Kaszuba, Jose S Pulido, Andrew L Folpe, Pavel N Pichurin, McKinsey L Goodenberger, Robert J Spinner
BACKGROUND: Germline pathogenic variants in BRCA1-associated protein-1 (BAP1), a nuclear ubiquitin carboxy-terminal hydrolase with evidence suggestive of independent tumor suppressor function, predispose affected families to uveal melanoma, cutaneous melanoma, renal cell carcinoma, malignant mesothelioma, and possibly a range of other tumors and malignancies as part of the BAP1 tumor predisposition syndrome (BAP1-TPDS), a recently recognized hereditary cancer syndrome. CASE DESCRIPTION: A 50 year old female patient presented with a malignant peripheral nerve sheath tumor of the left fifth metatarsal head...
October 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29059635/phase-ii-randomised-discontinuation-trial-of-cabozantinib-in-patients-with-advanced-solid-tumours
#11
Patrick Schöffski, Michael Gordon, David C Smith, Razelle Kurzrock, Adil Daud, Nicholas J Vogelzang, Yihua Lee, Christian Scheffold, Geoffrey I Shapiro
BACKGROUND: Cabozantinib is an inhibitor of tyrosine kinases, including MET, vascular endothelial growth factor receptor, AXL and RET. This multi-cohort phase II randomised discontinuation trial explored anticancer activity of cabozantinib in nine tumour types. PATIENTS AND METHODS: Cabozantinib was administered (100 mg, once daily) to patients with advanced, recurrent or metastatic cancers. Those with stable disease at week 12 were randomised 1:1 to cabozantinib or placebo...
October 20, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29055884/long-term-follow-up-for-cancer-incidence-in-a-cohort-of-danish-firefighters
#12
Kajsa Kirstine Ugelvig Petersen, Julie Elbaek Pedersen, Jens Peter Bonde, Niels Erik Ebbehoej, Johnni Hansen
OBJECTIVES: To examine cancer incidence among Danish firefighters using several employment-related exposure subgroups. METHODS: A historical cohort of 9061 male Danish firefighters was established from collected personnel and membership records from employers and trade unions. Using the unique Danish personal identification number, information on additional previous employment, cancer and vital status was linked to members of the cohort from the Supplementary Pension Fund Register, the Danish Cancer Registry and the Danish Civil Registration System...
October 21, 2017: Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/29055286/in-defense-of-progesterone-a-review-of-the-literature
#13
Allan Lieberman, Luke Curtis
Context • The medical literature on the use of progesterone in postmenopausal women is often confusing and contradictory. Some physicians implicate natural progesterone in an increase in the risk of breast cancer. The chemical structure of natural progesterone (P4) is quite different from chemically altered, synthetic chemicals called progestins, which results in different actions at the cell level. Objective • The research team intended to review the literature to examine the benefits and safety of natural progesterone and determine whether it can cause an increase or decrease in breast cancer risk...
October 21, 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/29050279/ssecks-akap12-scaffolding-functions-suppress-b16f10-induced-peritoneal-metastasis-by-attenuating-cxcl9-10-secretion-by-resident-fibroblasts
#14
Masashi Muramatsu, Lingqiu Gao, Jennifer Peresie, Benjamin Balderman, Shin Akakura, Irwin H Gelman
SSeCKS/Gravin/AKAP12 (SSeCKS) is a kinase scaffolding protein known to suppress metastasis by attenuating tumor-intrinsic PKC- and Src-mediated signaling pathways [1]. In addition to downregulation in metastatic cells, in silico analyses identified SSeCKS downregulation in prostate or breast cancer-derived stroma, suggesting a microenvironmental cell role in controlling malignancy. Although orthotopic B16F10 and SM1WT1[Braf(V600E)] mouse melanoma tumors grew similarly in syngeneic WT or SSeCKS-null (KO) mice, KO hosts exhibited 5- to 10-fold higher levels of peritoneal metastasis, and this enhancement could be adoptively transferred by pre-injecting naïve WT mice with peritoneal fluid (PF), but not non-adherent peritoneal cells (PC), from naïve KO mice...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29048660/canonical-and-non-canonical-wnt-signaling-in-cancer-stem-cells-and-their-niches-cellular-heterogeneity-omics-reprogramming-targeted-therapy-and-tumor-plasticity-review
#15
Masaru Katoh
Cancer stem cells (CSCs), which have the potential for self-renewal, differentiation and de-differentiation, undergo epigenetic, epithelial-mesenchymal, immunological and metabolic reprogramming to adapt to the tumor microenvironment and survive host defense or therapeutic insults. Intra-tumor heterogeneity and cancer-cell plasticity give rise to therapeutic resistance and recurrence through clonal replacement and reactivation of dormant CSCs, respectively. WNT signaling cascades cross-talk with the FGF, Notch, Hedgehog and TGFβ/BMP signaling cascades and regulate expression of functional CSC markers, such as CD44, CD133 (PROM1), EPCAM and LGR5 (GPR49)...
September 19, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/29045509/the-antibody-drug-conjugate-target-landscape-across-a-broad-range-of-tumour-types
#16
K L Moek, D J A de Groot, E G E de Vries, R S N Fehrmann
Background: Antibody-drug conjugates (ADCs), consisting of an antibody designed against a specific target at the cell membrane linked with a cytotoxic agent, are an emerging class of therapeutics. Since ADC tumour cell targets do not have to be drivers of tumour growth, ADCs are potentially relevant for a wide range of tumours currently lacking clear oncogenic drivers. Therefore, we aimed to define the landscape of ADC targets in a broad range of tumours. Materials and methods: PubMed and ClinicalTrials...
September 25, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29031034/-potential-of-using-vitamin-d-as-an-adjuvant-treatment-of-malignant-melanoma
#17
B Bolerázska, E Ďurovcová, M Mareková
The incidence of malignant melanoma worldwide continues to grow despite the enormous advances in topical and systemic therapy. This increase is recorded regularly even in countries where, as a result of public health campaigns, dermatological examination and subsequent treatment have become more frequent. However, there have been reports of a stable or even decreasing mortality rate that seem to contradict the objective increase in its incidence. The well-known risk factors for malignant melanoma include sunburns and occasional sunbathing, whereas regular sunbathing is associated with a lower incidence...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/29027288/cxxc5-expression-in-prostate-cancer-implications-for-cancer-progression
#18
Ines Benedetti, Angelo M De Marzo, Jan Geliebter, Niradiz Reyes
Identification of genes specifically deregulated in prostate adenocarcinoma may lead to discovery of new oncogenes/tumour suppressors with clinical relevance for diagnosis, prognosis and/or therapy. CXXC5 is a gene encoding a retinoid-inducible nuclear factor, whose overexpression in breast tumours, metastatic malignant melanomas and papillary thyroid carcinoma has been recently reported. We previously found differential expression of CXXC5 transcripts in metastatic prostate cancer cell lines of both rat and human origin...
August 2017: International Journal of Experimental Pathology
https://www.readbyqxmd.com/read/29025989/low-level-endogenous-prostate-specific-membrane-antigen-psma-expression-in-non-prostatic-tumor-xenografts-is-sufficient-for-in-vivo-tumor-targeting-and-imaging
#19
Sridhar Nimmagadda, Mrudula Pullambhatla, Ying Chen, Princy Parsana, Ala Lisok, Samit Chatterjee, Ronnie Mease, Steven P Rowe, Shawn E Lupold, Kenneth J Pienta, Martin G Pomper
Prostate-specific membrane antigen (PSMA) is highly expressed in prostate cancer and within the neovasculature of other solid tumors. The non-prostatic expression of PSMA has been reported exclusively within the neovasculature endothelial cells of non-prostate cancers, however, there are few reports on PSMA expression on epithelial cells. Herein we describe PSMA expression in non-prostatic epithelial cells and characterize the potential of PSMA-binding agents to non-invasively detect that expression. METHODS: PSMA expression data was extracted from publicly available genomic databases...
October 12, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29024195/identification-of-zinc-finger-protein-of-the-cerebellum-5-as-a-survival-factor-of-prostate-and-colorectal-cancer-cells
#20
Reiko Satow, Shota Inagaki, Chiaki Kato, Makoto Shimozawa, Kiyoko Fukami
Identification of specific drug targets is very important for cancer therapy. We recently identified zinc finger protein of the cerebellum 5 (ZIC5) as a factor that promotes melanoma aggressiveness by platelet-derived growth factor D (PDGFD) expression. However, its roles in other cancer types remain largely unknown. Here we determined the roles of ZIC5 in prostate cancer (PCa) and colorectal cancer (CRC) cells. Results showed that ZIC5 was highly expressed in CRC and dedifferentiated PCa tissues, whereas little expression was observed in relevant normal tissues...
October 10, 2017: Cancer Science
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