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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
#1
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/29137421/gper-mediates-differential-effects-of-estrogen-on-colon-cancer-cell-proliferation-and-migration-under-normoxic-and-hypoxic-conditions
#2
Viviana Bustos, Áine M Nolan, Anke Nijhuis, Harry Harvey, Alexandra Parker, Richard Poulsom, Jean McBryan, Warren Thomas, Andrew Silver, Brian J Harvey
The estrogen receptor ERβ is the predominant ER subtype expressed in normal well-differentiated colonic epithelium. However, ERβ expression is lost under the hypoxic microenvironment as colorectal cancer (CRC) malignancy progresses. This raises questions about the role of signalling through other estrogen receptors such as ERα or G-protein coupled estrogen receptor (GPER, GPR30) by the estrogen 17β-estradiol (E2) under hypoxic conditions after ERβ is lost in CRC progression. We tested the hypothesis that E2 or hypoxia can act via GPER to contribute to the altered phenotype of CRC cells...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137344/red-and-processed-meat-consumption-and-colorectal-cancer-risk-a-systematic-review-and-meta-analysis
#3
Zhanwei Zhao, Quanxin Feng, Zifang Yin, Jianbo Shuang, Bin Bai, Pengfei Yu, Min Guo, Qingchuan Zhao
The associations between red and processed meat consumption and the risk of colorectal cancer types have not been conclusively defined. We performed a systematic review and meta-analysis to analyze these associations. We searched PubMed and EMBASE to identify studies published from inception through September 2016. Dose-response, subgroup and subtype analyses of colorectal cancer (colon cancer, proximal colon cancer, distal colon cancer and rectal cancer) were performed. We ultimately selected 60 eligible studies...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29123583/medullary-colonic-carcinoma-with-microsatellite-instability-has-lower-survival-compared-with-conventional-colonic-adenocarcinoma-with-microsatellite-instability
#4
Miguel A Gómez-Álvarez, Leonardo S Lino-Silva, Rosa A Salcedo-Hernández, Alejandro Padilla-Rosciano, Erika B Ruiz-García, Horacio N López-Basave, German Calderillo-Ruiz, José M Aguilar-Romero, Jorge A Domínguez-Rodríguez, Ángel Herrera-Gómez, Abelardo Meneses-García
Introduction: Colorectal medullary carcinoma (MC) is a rare subtype of poorly differentiated adenocarcinoma (PDA) with unclear prognostic significance. Microsatellite instable (MSI) colorectal carcinomas have demonstrated better prognosis in clinical stage II. Aim: To analyze the survival and clinicopathological characteristics of MCs versus PDAs with MSI in clinical stage III. Material and methods: We studied 22 cases of PDAs with MSI versus 10 MCs...
2017: Przegla̜d Gastroenterologiczny
https://www.readbyqxmd.com/read/29101300/pharmacoproteomic-characterisation-of-human-colon-and-rectal-cancer
#5
Martin Frejno, Riccardo Zenezini Chiozzi, Mathias Wilhelm, Heiner Koch, Runsheng Zheng, Susan Klaeger, Benjamin Ruprecht, Chen Meng, Karl Kramer, Anna Jarzab, Stephanie Heinzlmeir, Elaine Johnstone, Enric Domingo, David Kerr, Moritz Jesinghaus, Julia Slotta-Huspenina, Wilko Weichert, Stefan Knapp, Stephan M Feller, Bernhard Kuster
Most molecular cancer therapies act on protein targets but data on the proteome status of patients and cellular models for proteome-guided pre-clinical drug sensitivity studies are only beginning to emerge. Here, we profiled the proteomes of 65 colorectal cancer (CRC) cell lines to a depth of > 10,000 proteins using mass spectrometry. Integration with proteomes of 90 CRC patients and matched transcriptomics data defined integrated CRC subtypes, highlighting cell lines representative of each tumour subtype...
November 3, 2017: Molecular Systems Biology
https://www.readbyqxmd.com/read/29069346/outbreak-of-invasive-infections-from-subtype-emm26-3-group-a-streptococcus-among-homeless-adults-anchorage-alaska-2016-2017
#6
Emily Mosites, Anna Frick, Prabhu Gounder, Louisa Castrodale, Yuan Li, Karen Rudolph, Debby Hurlburt, Kristen D Lecy, Tammy Zulz, Tolu Adebanjo, Jennifer Onukwube, Bernard Beall, Chris A Van Beneden, Thomas Hennessy, Joseph McLaughlin, Bruce Michael
Background: In 2016, we detected an outbreak of group A Streptococcus (GAS) invasive infections among the estimated 1000 persons experiencing homelessness (PEH) in Anchorage, Alaska. We characterized the outbreak and implemented a mass antibiotic intervention at homeless service facilities. Methods: We identified cases through the Alaska GAS laboratory-based surveillance system. We conducted emm-typing, antimicrobial susceptibility testing, and whole genome sequencing (WGS) on all invasive isolates and compared medical record data of patients infected with emm26...
October 23, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29067605/surgical-management-of-primary-retroperitoneal-sarcomas-rationale-for-selective-organ-resection
#7
Mark Fairweather, Jiping Wang, Vickie Y Jo, Elizabeth H Baldini, Monica M Bertagnolli, Chandrajit P Raut
BACKGROUND: Recently, some have argued for routine resection of adjacent but uninvolved organs in patients with retroperitoneal sarcoma (RPS) without stipulating the rationale for such organ resection (beyond the need to achieve a macroscopically complete resection) or examining histopathologic organ invasion (HOI). This study reviewed the authors' experience with primary RPS to investigate the rate and rationale for individual organ resection and the rate of HOI. METHODS: Operative and pathology reports for patients with primary RPS who underwent resection at our institution were retrospectively reviewed...
October 24, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29067122/analgesic-activity-of-cynaropicrinon-on-post-inflammatory-irritable-bowel-syndrome-visceral-hypersensitivity-in-a-rat-model
#8
Hailong Shi, Xianwei Zhu, Yaya Cui, Yifei Qin, Lin Yang, Xu Deng
Visceral hypersensitivity is one of the most common symptoms in patients with post-inflammatory-irritable bowel syndrome (PI-IBS). Enterochromaffin (EC) cells and 5-hydroxytryptamine (5-HT) are important in the development of visceral hyperalgesia, and EC cells are influenced by helper T-cell subtype 1 or 2 cytokine predominant environments. In the present study, the analgesic effect of cynaropicrin and its underlying mechanism on the treatment of trinitrobenzene sulfonic (TNBS)-induced PI-IBS visceral hyperalgesia rats was investigated...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29051788/emerging-oral-targeted-therapies-in-inflammatory-bowel-diseases-opportunities-and-challenges
#9
REVIEW
Marcel Vetter, Markus F Neurath
To improve quality of life and prevent long-term risks in patients with inflammatory bowel diseases (IBDs: Crohn's disease, ulcerative colitis), it is essential to suppress inflammatory activity adequately. However, corticosteroids are only suitable for therapy of acute flares and the evidence for positive effects of immunosuppressive substances like azathioprine or 6-mercapropurine is mainly limited to maintenance of remission. In addition, only subgroups of patients benefit from biologicals targeting tumour necrosis factor α or α4β7 integrins...
October 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/29043291/fibroblastic-polyps-a-novel-polyp-subtype-in-cowden-syndrome
#10
Bradley Anderson, Thomas Smyrk, Seth Sweester
Cowden syndrome (CS) represents one possible phenotype of the PTEN gene mutation, and it can cause hamartomas throughout the gastrointestinal tract, with a predisposition for malignancy. Fibroblastic polyps have not been associated with CS. A 45-year-old woman with CS presenting for colonoscopic surveillance was found to have multiple sessile polyps throughout the transverse, descending, and sigmoid colon, all 2-5 mm in diameter. Based on the morphologic features and the immunohistochemical profile, these lesions were classified as fibroblastic polyps...
2017: ACG Case Reports Journal
https://www.readbyqxmd.com/read/29042449/peptide-yy-mediates-the-satiety-effects-of-diets-enriched-with-whey-protein-fractions-in-male-rats
#11
Rizaldy C Zapata, Arashdeep Singh, Prasanth K Chelikani
Dairy proteins-whey protein, in particular-are satiating and often recommended for weight control; however, little is known about the mechanisms by which whey protein and its components promote satiety and weight loss. We used diet-induced obese rats to determine whether the hypophagic effects of diets that are enriched with whey and its fractions, lactalbumin and lactoferrin, are mediated by the gut hormone, peptide YY (PYY). We demonstrate that high protein diets that contain whey, lactalbumin, and lactoferrin decreased food intake and body weight with a concurrent increase in PYY mRNA abundance in the colon and/or plasma PYY concentrations...
October 17, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29039274/different-escherichia-coli-b2-st131-clades-b-and-c-producing-extended-spectrum-%C3%AE-lactamases-esbl-colonizing-residents-of-portuguese-nursing-homes
#12
C Rodrigues, E Machado, S Fernandes, L Peixe, Â Novais
ESBL-producing Enterobacteriaceae and particularly Escherichia coli ST131 isolates producing CTX-M enzymes are commonly found colonizing the intestine of nursing home (NH) residents, but ST131 subclonal structure has been scarcely explored in this vulnerable population. Our goal was to perform a pilot study to assess the faecal carriage rate and epidemiological features of ESBL- and/or carbapenemase-producing Enterobacteriaceae (ESBL-E and CPE, respectively) among NH residents. For this purpose, faecal samples from residents at 4 different NHs in the North of Portugal (representing 9·5% of the residents' population, July 2014) were screened for ESBL-E and/or CPE by phenotypic and genotypic methods...
October 17, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/29037218/clinicopathologic-features-and-treatment-efficacy-of-chinese-patients-with-braf-mutated-metastatic-colorectal-cancer-a-retrospective-observational-study
#13
Xicheng Wang, Qing Wei, Jing Gao, Jian Li, Jie Li, Jifang Gong, Yanyan Li, Lin Shen
BACKGROUND: The prognostic role of the V600E mutation of v-raf murine sarcoma viral oncogene homolog B1 (BRAF) in metastatic colorectal cancer (mCRC) is well established, but the therapeutic regimen targeting this disease is lacking. This study aimed to analyze the clinicopathologic features of and treatment efficacy of commonly used regimens on BRAF-mutated mCRCs. METHODS: We collected and reviewed the medical records of mCRC patients treated at Peking University Cancer Hospital & Institute (Beijing, China) between July 2011 and July 2016...
October 16, 2017: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/29031501/dna-methylation-and-transcription-patterns-in-intestinal-epithelial-cells-from-pediatric-patients-with-inflammatory-bowel-diseases-differentiate-disease-subtypes-and-associate-with-outcome
#14
K J Howell, J Kraiczy, K M Nayak, M Gasparetto, A Ross, C Lee, T N Mak, B-K Koo, N Kumar, T Lawley, A Sinha, P Rosenstiel, R Heuschkel, O Stegle, M Zilbauer
BACKGROUND & AIMS: We analyzed DNA methylation patterns and transcriptomes of primary intestinal epithelial cells (IEC) of children newly diagnosed with inflammatory bowel diseases (IBD) to learn more about pathogenesis. METHODS: We obtained mucosal biopsies (n=236) collected from terminal ileum and ascending and sigmoid colons of children (median age=13) newly diagnosed with IBD (43 with Crohn's disease [CD], 23 with ulcerative colitis [UC]), and 30 children without IBD (controls)...
October 11, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29029886/heterogeneity-in-treatment-response-of-spine-metastases-to-spine-stereotactic-radiosurgery-within-radiosensitive-subtypes
#15
Vincent Bernard, Andrew J Bishop, Pamela K Allen, Behrang Amini, Xin A Wang, Jing Li, Claudio E Tatsui, Laurence D Rhines, Paul D Brown, Amol J Ghia
PURPOSE: To characterize outcomes of metastatic colorectal and non-small cell lung cancer (NSCLC) histologies, compared with other radiosensitive histologies, treated with spine stereotactic radiosurgery with regard to local control, overall survival, and predictors of response. METHODS AND MATERIALS: A total of 127 patients with 148 spine stereotactic radiosurgery-treated metastatic lesions at our institution between 2003 and 2013 were reviewed. We assessed clinical endpoints in relation to histologic type, including local control (LC) and overall survival (OS), using univariate and multivariate analyses...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29027719/glioplasticity-in-irritable-bowel-syndrome
#16
N L Lilli, L Quénéhervé, S Haddara, C Brochard, P Aubert, M Rolli-Derkinderen, T Durand, P Naveilhan, J-B Hardouin, R De Giorgio, G Barbara, S Bruley des Varannes, E Coron, M Neunlist
BACKGROUND: Growing evidence indicates a wide array of cellular remodeling in the mucosal microenvironment during irritable bowel syndrome (IBS), which possibly contributes to pathophysiology and symptom generation. Here, we investigated whether enteric glial cells (EGC) may be altered, and which factors/mechanisms lead to these changes. METHODS: Colonic mucosal biopsies of IBS patients (13 IBS-Constipation [IBS-C]; 10 IBS-Diarrhea [IBS-D]; 11 IBS-Mixed [IBS-M]) and 24 healthy controls (HC) were analyzed...
October 13, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29025243/colon-cancer-with-micropapillary-carcinoma-component-a-clinopathologic-study-of-9-cases
#17
Naoto Kuroda, Kenji Yorita
Recently, colon cancer with micropapillary pattern (MPP) has been identified. MPP is defined as tight tufts surrounded by cleft-like space and lacking true fibrovascular cores and showing reverse polarity. In this article, we studied nine cases of colon cancer with MPP. MPP usually accounted for a minor component in total tumour volume, which ranged from 3 to 40% with a mean percentage of 19.2%. Associated histological subtype showed moderately differentiated tubular adenocarcinoma in all cases. The reverse polarity of villin (9/9, diffuse) in MPP component was superior to that of CA125 (5/9, focal) or CD10 (5/9, diffuse 2/9, focal 3/9)...
2017: Polish Journal of Pathology: Official Journal of the Polish Society of Pathologists
https://www.readbyqxmd.com/read/28991374/synaptopodin-2-suppresses-metastasis-of-triple-negative-breast-cancer-via-inhibition-of-yap-taz-activity
#18
Junling Liu, Liping Ye, Qingyuan Li, Xianqiu Wu, Bin Wang, Ying Ouyang, Zhongyu Yuan, Jun Li, Chuyong Lin
Triple negative breast cancer (TNBC) represents the most aggressive subtype of breast cancer with a high incidence of distant metastasis; however, the underlying mechanism for this frequent recurrence remains unclear. Herein, we find that Synaptopodin 2, a putative tumor suppressor in aggressive cancer, is frequently downregulated in TNBC by methylation of the promoter of SYNPO2. Low expression levels of SYNPO2 correlated significantly with 5-year metastatic relapse, and predicted poorer prognosis in breast cancer patients...
October 9, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28987250/differences-between-metabolically-healthy-vs-unhealthy-obese-children-and-adolescents
#19
Aditi Khokhar, Vivian Chin, Sheila Perez-Colon, Tanni Farook, Shipra Bansal, Elna Kochummen, Vatcharapan Umpaichitra
Obesity is on the rise worldwide. An obesity subtype, metabolically healthy obese (MHO), is resilient to unfavorable metabolic and cardiovascular effects. Factors predicting MHO phenotype are not well characterized. We aimed to identify MHO and metabolically unhealthy obese (MUO) children and adolescents with respect to metabolic factors, and to find predictors of MHO subtype. A retrospective chart review was done on children, ages 4-19 years, 99% African-American/Caribbean, with BMI ≥95th %tile. MUO was defined as meeting ≥1 of the following: fasting glucose ≥100 mg/dl, HbA1c >5...
2017: Journal of the National Medical Association
https://www.readbyqxmd.com/read/28982890/debulking-surgery-for-clear-cell-carcinoma-of-the-ovary-a-case-report-and-literature-review
#20
REVIEW
Nicolae Bacalbasa, Irina Balescu, Alexandru Filipescu
Ovarian clear cell carcinoma represents a distinct histopathological subtype of epithelial ovarian cancer, with poor outcomes, especially in cases diagnosed in advanced stages of disease. However, even in these cases, it seems that the most effective treatment remains debulking surgery to no residual disease. We present the case of a 56-year-old patient diagnosed with a large pelvic mass invading the rectosigmoidal colon, and ileal loop who was successfully submitted to cytoreductive surgery to no residual disease...
October 2017: Anticancer Research
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