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https://www.readbyqxmd.com/read/29149107/treponema-denticola-chymotrypsin-like-proteinase-may-contribute-to-orodigestive-carcinogenesis-through-immunomodulation
#1
Mikko T Nieminen, Dyah Listyarifah, Jaana Hagström, Caj Haglund, Daniel Grenier, Dan Nordström, Veli-Jukka Uitto, Marcela Hernandez, Tülay Yucel-Lindberg, Taina Tervahartiala, Mari Ainola, Timo Sorsa
BACKGROUND: Periodontal pathogens have been linked to oral and gastrointestinal (orodigestive) carcinogenesis. However, the exact mechanisms remain unknown. Treponema denticola (Td) is associated with severe periodontitis, a chronic inflammatory disease leading to tooth loss. The anaerobic spirochete Td is an invasive bacteria due to its major virulence factor chymotrypsin-like proteinase. Here we aimed to investigate the presence of Td chymotrypsin-like proteinase (Td-CTLP) in major orodigestive tumours and to elucidate potential mechanisms for Td to contribute to carcinogenesis...
November 16, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29148927/flat-serrated-polyps-at-ct-colonography-relevance-appearance-and-optimizing-interpretation
#2
David H Kim, Meghan G Lubner, Ashley R Cahoon, B Dustin Pooler, Perry J Pickhardt
Serrated polyps are a recently recognized family of colonic polyps with subgroups that harbor future malignant potential. In the past, the significance of these lesions to the colorectal cancer carcinogenesis pathway was not recognized nor well understood. It is now known that serrated polyps account for approximately one-fourth of all sporadic colorectal cancers. The sessile serrated polyp (SSP) (also known as a sessile serrated adenoma [SSA]) is the main lesion of interest given its prevalence and subtle presentation...
November 17, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29147652/identification-of-potent-chloride-intracellular-channel-protein-1-inhibitors-from-traditional-chinese-medicine-through-structure-based-virtual-screening-and-molecular-dynamics-analysis
#3
Wei Wang, Minghui Wan, Dongjiang Liao, Guilin Peng, Xin Xu, Weiqiang Yin, Guixin Guo, Funeng Jiang, Weide Zhong, Jianxing He
Chloride intracellular channel 1 (CLIC1) is involved in the development of most aggressive human tumors, including gastric, colon, lung, liver, and glioblastoma cancers. It has become an attractive new therapeutic target for several types of cancer. In this work, we aim to identify natural products as potent CLIC1 inhibitors from Traditional Chinese Medicine (TCM) database using structure-based virtual screening and molecular dynamics (MD) simulation. First, structure-based docking was employed to screen the refined TCM database and the top 500 TCM compounds were obtained and reranked by X-Score...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29147625/a-transcriptomic-insight-into-the-impacts-of-mast-cells-in-lung-breast-and-colon-cancers
#4
Eun-A Ko, Kenton M Sanders, Tong Zhou
To date, the exact impact of mast cells in tumor microenvironment is still controversial because of inconsistency in observations regarding the relationship between mast cell infiltrates and cancer development and prognosis. The discrepancies in previous studies have motivated us to examine the roles of mast cells in cancer pathology from different perspectives. Here, we investigated the impact of mast cells on transcriptomic profiles in the tissue microenvironment. Mice carrying the W-sh mutation in c-kit (Kit(W-sh) ) are deficient in mast cell production and were used to assess the influence of mast cells on gene expression...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29147564/a-review-of-orexin-s-unprecedented-potential-as-a-novel-highly-specific-treatment-for-various-localized-and-metastatic-cancers
#5
REVIEW
Nicole L Graybill, Volkmar Weissig
A systematic review was conducted to categorize the types of cancerous tissues that express orexin receptors and also to examine the effect of in vitro administration of orexin A or B to corresponding cell samples. Comprehensive literature analyses of primary experimental studies were performed. The results of the review included an increased frequency of orexin receptor expression in many colon and prostate cancer tissues and an upward trend of pro-apoptotic activity in these aggressive cell types.
2017: SAGE Open Medicine
https://www.readbyqxmd.com/read/29147483/sonophotodynamic-therapy-mediated-by-liposomal-zinc-phthalocyanine-in-a-colon-carcinoma-tumor-model-role-of-irradiating-arrangement
#6
Maryam Bakhshizadeh, Toktam Moshirian, Habibollah Esmaily, Omid Rajabi, Hooriyeh Nassirli, Ameneh Sazgarnia
Objectives: Low penetration depth of light is the main defect of photodynamic therapy (PDT), which could be improved by sonodynamic therapy (SDT). In this study, a combination of PDT and SDT known as sonophotodynamic therapy (SPDT) was investigated using two reverse arrangements in CT26 tumor model. Materials and Methods: The liposomal zinc phthalocyanine was synthesized and characterized. It was then administered to CT26 tumor models as a sensitizer. The animal models were subjected to PDT, SDT, and the combined treatment in different groups...
October 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29147441/intrahepatic-biliary-metastasis-of-colonic-adenocarcinoma-a-case-report-with-immunohistochemical-analysis
#7
Keisuke Kawashima, Naoki Watanabe, Sho Tawada, Takahito Adachi, Makoto Yamada, Yusuke Kitoh, Tamotsu Takeuchi, Takuji Tanaka
Although intrabiliary metastasis of carcinoma in the liver is unusual, intraductal and/or intraepithelial spread of cancer cells along intrahepatic bile ducts is now well recognized as hepatic metastasis. However, several clinical and laboratory findings, including images, lead us to differentially diagnose from primary intrahepatic cholangiocarcinoma. We report here on a case of colonic adenocarcinoma that metastasized to the liver with spread along with the intrahepatic bile duct of S5/6 area. The patient was a 51-year-old man and clinically diagnosed liver metastasis of sigmoid colon cancer (tub2, pMP, ly1, v0, n0), which was diagnosed and treated by sigmoidectomy 7 years ago...
June 2017: World Journal of Oncology
https://www.readbyqxmd.com/read/29146752/physical-activity-and-cancer-an-umbrella-review-of-the-literature-including-22-major-anatomical-sites-and-770%C3%A2-000-cancer-cases
#8
REVIEW
Leandro Fórnias Machado de Rezende, Thiago Hérick de Sá, Georgios Markozannes, Juan Pablo Rey-López, I-Min Lee, Konstantinos K Tsilidis, John P A Ioannidis, José Eluf-Neto
OBJECTIVE: To provide an overview of the breadth and validity of claimed associations between physical activity and risk of developing or dying from cancer. DESIGN: Umbrella review. DATA SOURCES: We searched Medline, Embase, Cochrane Database and Web of Science. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Systematic reviews about physical activity and cancer incidence and cancer mortality in different body sites among general population...
November 16, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29146133/synthesis-and-bio-evaluation-of-indole-chalcone-based-benzopyrans-as-promising-antiligase-and-antiproliferative-agents
#9
Sampa Gupta, Pooja Maurya, Akanksha Upadhyay, Pragati Kushwaha, Shagun Krishna, Mohammad Imran Siddiqi, Koneni V Sashidhara, Dibyendu Banerjee
DNA replication and repair are complex processes accomplished by the concerted action of a network of enzymes and proteins. DNA ligases play a crucial role in these processes by catalyzing the nick joining between DNA strands. As compared to normal cells, elevated levels of human DNA ligase I (hLigI) is reported in some cancers. We studied the inhibition of hLigI mediated DNA nick sealing activity followed by the antiproliferative activity of novel indole-chalcone based benzopyran compounds on cancer cells...
November 7, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29145973/tak-ing-aim-at-chemoresistance-the-emerging-role-of-map3k7-as-a-target-for-cancer-therapy
#10
Raffaela Santoro, Carmine Carbone, Geny Piro, Paul J Chiao, Davide Melisi
Cellular drug resistance remains the main obstacle to the clinical efficacy of cancer chemotherapy. Alterations in key pathways regulating cell cycle checkpoints, apoptosis and Epithelial to Mesenchymal Transition (EMT), such as the Mitogen-activated protein kinase (MAPK) pathway, appear to be closely associated to cancer chemoresistance. Transforming growth factor-β (TGF-β)- activated kinase 1 (TAK1, also known as MAP3K7) is a serine/threonine kinase in the mitogen-activated protein kinase (MAP3K) family...
November 2017: Drug Resistance Updates: Reviews and Commentaries in Antimicrobial and Anticancer Chemotherapy
https://www.readbyqxmd.com/read/29145893/normalization-of-the-microbiota-in-patients-after-treatment-for-colonic-lesions
#11
Marc A Sze, Nielson T Baxter, Mack T Ruffin, Mary A M Rogers, Patrick D Schloss
BACKGROUND: Colorectal cancer is a worldwide health problem. Despite growing evidence that members of the gut microbiota can drive tumorigenesis, little is known about what happens to it after treatment for an adenoma or carcinoma. This study tested the hypothesis that treatment for adenoma or carcinoma alters the abundance of bacterial populations associated with disease to those associated with a normal colon. We tested this hypothesis by sequencing the 16S rRNA genes in the feces of 67 individuals before and after treatment for adenoma (N = 22), advanced adenoma (N = 19), and carcinoma (N = 26)...
November 16, 2017: Microbiome
https://www.readbyqxmd.com/read/29145573/human-papillomavirus-hpv-and-somatic-egfr-mutations-are-essential-mutually-exclusive-oncogenic-mechanisms-for-inverted-sinonasal-papillomas-and-associated-sinonasal-squamous-cell-carcinomas
#12
A M Udager, J B McHugh, C M Goudsmit, H C Weigelin, M S Lim, K S J Elenitoba-Johnson, B L Betz, T E Carey, N A Brown
Background: Inverted sinonasal papilloma (ISP) is a locally aggressive neoplasm often associated with sinonasal squamous cell carcinoma (SNSCC). While the etiology of ISP is not well understood, human papillomavirus (HPV) has been detected in a subset of cases. Our group recently identified activating somatic EGFR mutations in the majority of ISP and ISP-associated SNSCC. However, the relationship between EGFR mutations and HPV infection has not been explored. Patients and Methods: We evaluated 58 ISP and 22 ISP-associated SNSCC (including 13 patients with matched ISP/SNSCC samples), as well as 14 SNSCC without clinical or pathologic evidence of an associated ISP...
November 14, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29145239/two-case-reports-colorectal-adenocarcinoma-in-children
#13
Chang Hoon Ahn, Soon Chul Kim
RATIONALE: Colorectal cancer in children is rare, with delayed diagnosis and advanced stage at presentation in high mortality. Early detection of colorectal cancer is, therefore, important for better prognosis. PATIENT CONCERNS: Thirteen-year-old boy presented with symptoms of melena, vomiting, and abdominal pain for 6 months. 18-year-old girl was hospitalized due to the symptoms of hematochezia, and persistent abdominal pain for 6 months. They have no chronic disease or familial history of malignancy...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145164/long-noncoding-rna-hnf1a-as1-indicates-a-poor-prognosis-of-colorectal-cancer-and-promotes-carcinogenesis-via-activation-of-the-wnt-%C3%AE-catenin-signaling-pathway
#14
Xin Zhang, Yumin Xiong, Fengying Tang, Ying Bian, Yanhui Chen, Fengli Zhang
Long non-coding RNAs (lncRNAs) have been identified to play critical roles in tumorigenesis. LncRNA HNF1A-AS1 has been suggested to act as an oncogene and serves as a novel prognostic biomarker for various cancer. However, the biological role and clinical significance of lncRNA HNF1A-AS1 in colorectal cancer (CRC) have yet to be fully elusive. Therefore, the present study was designed to determine the expression of lncRNA HNF1A-AS1 in patients with CRC, the role of lncRNA HNF1A-AS1 in CRC cells, as well as the underlying regulatory mechanisms...
October 24, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29145106/metachronous-mediastinal-lymph-node-metastasis-from-ascending-colon-cancer-a-case-report-and-literature-review
#15
Kosuke Toda, Kenji Kawada, Yoshiharu Sakai, Hiroshi Izumi
INTRODUCTION: Metachronous mediastinal lymph node metastasis without pulmonary metastasis is extremely rare in colorectal cancer, which makes the clinical diagnosis difficult and treatment strategy unclear. PRSENTATION OF CASE: A case was a 59-year-old man, who had undergone right hemicolectomy for ascending colon cancer 2 years and 8 months previously, presented with enlarged mediastinal lymph nodes. (18)F-fluorodeoxyglucose (FDG) positron emission tomography revealed FDG was accumulated only into the mediastinal lymph nodes...
November 9, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29145037/time-to-diagnosis-and-treatment-for-cancer-patients-in-the-netherlands-room-for-improvement
#16
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/29144754/immunogenic-cell-death-amplified-by-co-localized-adjuvant-delivery-for-cancer-immunotherapy
#17
Yuchen Fan, Rui Kuai, Yao Xu, Lukasz J Ochyl, Darrell J Irvine, James Moon
Despite their potential, conventional whole-cell cancer vaccines prepared by freeze-thawing or irradiation have shown limited therapeutic efficacy in clinical trials. Recent studies have shown that cancer cells treated with certain chemotherapeutics, such as mitoxantrone, can undergo immunogenic cell death (ICD) and initiate anti-tumor immune responses. However, it remains unclear how ICD can be exploited for cancer immunotherapy. Here, we present a new biomaterial-based strategy for converting immunogenically dying tumor cells into a powerful platform for cancer vaccination and demonstrate their immunogenicity in murine models of melanoma and colon carcinoma...
November 16, 2017: Nano Letters
https://www.readbyqxmd.com/read/29143906/surgery-for-diverticular-disease-results-in-a-higher-hernia-rate-compared-to-colorectal-cancer-a-population-based-study-from-ontario-canada
#18
E S Tang, D I Robertson, M Whitehead, J Xu, S F Hall
BACKGROUND: Incisional hernias are a well described complication of abdominal surgery. Previous studies identified malignancy and diverticular disease as risk factors. We compared incisional hernia rates between colon resection for colorectal cancer (CRC) and diverticular disease (DD). STUDY DESIGN: We performed a retrospective, population-based, matched cohort study. Provincial databases were linked through the Institute for Clinical Evaluative Sciences. These databases include all patients registered under the universal Ontario Health Insurance Plan...
November 16, 2017: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/29143535/cytotoxic-triterpene-saponins-from-the-mangrove-aegiceras-corniculatum
#19
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/29143160/solvent-free-synthesis-and-anticancer-activity-evaluation-of-benzimidazole-and-perimidine-derivatives
#20
Anuj Kumar, Somesh Banerjee, Partha Roy, S M Sondhi, Anuj Sharma
Benzimidazoles and perimidines are subsidiary structures for research and development of new biologically active molecules and have established prominence because of their promising biological activities. Two series of diversified heterocyclic molecules, tetracyclic benzimidazole derivatives, tetracyclic and pentacyclic perimidine derivatives have been synthesized in good yields by condensation of acid anhydrides and diacids with various diamines using microwave irradiation. All synthesized derivatives were fully characterized and evaluated for in vitro antiproliferative activity against five human cancer cell lines...
November 15, 2017: Molecular Diversity
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