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https://www.readbyqxmd.com/read/29137421/gper-mediates-differential-effects-of-estrogen-on-colon-cancer-cell-proliferation-and-migration-under-normoxic-and-hypoxic-conditions
#1
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
#2
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/29101300/pharmacoproteomic-characterisation-of-human-colon-and-rectal-cancer
#3
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/29037218/clinicopathologic-features-and-treatment-efficacy-of-chinese-patients-with-braf-mutated-metastatic-colorectal-cancer-a-retrospective-observational-study
#4
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/29029886/heterogeneity-in-treatment-response-of-spine-metastases-to-spine-stereotactic-radiosurgery-within-radiosensitive-subtypes
#5
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/29025243/colon-cancer-with-micropapillary-carcinoma-component-a-clinopathologic-study-of-9-cases
#6
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
#7
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/28982890/debulking-surgery-for-clear-cell-carcinoma-of-the-ovary-a-case-report-and-literature-review
#8
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
https://www.readbyqxmd.com/read/28977010/clinicopathological-features-of-laterally-spreading-colorectal-tumors-and-their-association-with-advanced-histology-and-invasiveness-an-experience-from-honam-province-of-south-korea-a-honam-association-for-the-study-of-intestinal-diseases-hasid
#9
Dae-Seong Myung, Sun-Seog Kweon, Jun Lee, Ik-Sang Shin, Sang-Wook Kim, Geom-Seog Seo, Hyun-Soo Kim, Young-Eun Joo
BACKGROUND AND AIMS: Laterally spreading colorectal tumors (LSTs) are divided into four subtypes, including homogenous (HG), nodular mixed (NM), flat elevated (FE), and pseudo-depressed (PD), based on their different endoscopic morphologies. The aim of this study was to investigate the clinicopathological significance of LST subtypes and their association with advanced histology. METHODS: We investigated the medical records of consecutive patients with LST who initially underwent endoscopic resection at five university hospitals in Honam province of South Korea between January 2012 and December 2013...
2017: PloS One
https://www.readbyqxmd.com/read/28947740/group-iii-phospholipase-a2-promotes-colitis-and-colorectal-cancer
#10
Remi Murase, Yoshitaka Taketomi, Yoshimi Miki, Yasumasa Nishito, Moe Saito, Kiyoko Fukami, Kei Yamamoto, Makoto Murakami
Lipid mediators play pivotal roles in colorectal cancer and colitis, but only a limited member of the phospholipase A2 (PLA2) subtypes, which lie upstream of various lipid mediators, have been implicated in the positive or negative regulation of these diseases. Clinical and biochemical evidence suggests that secreted PLA2 group III (sPLA2-III) is associated with colorectal cancer, although its precise role remains obscure. Here we have found that sPLA2-III-null (Pla2g3 (-/-)) mice are highly resistant to colon carcinogenesis...
September 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28921583/associations-of-alcohol-intake-smoking-physical-activity-and-obesity-with-survival-following-colorectal-cancer-diagnosis-by-stage-anatomic-site-and-tumor-molecular-subtype
#11
Harindra Jayasekara, Dallas R English, Andrew Haydon, Allison M Hodge, Brigid M Lynch, Christophe Rosty, Elizabeth J Williamson, Mark Clendenning, Melissa C Southey, Mark A Jenkins, Robin Room, John L Hopper, Roger L Milne, Daniel D Buchanan, Graham G Giles, Robert J MacInnis
The influence of lifestyle factors on survival following a diagnosis of colorectal cancer (CRC) is not well established. We examined associations between lifestyle factors measured before diagnosis and CRC survival. The Melbourne Collaborative Cohort Study collected data on alcohol intake, cigarette smoking and physical activity, and body measurements at baseline (1990-1994) and wave 2 (2003-2007). We included participants diagnosed to 31 August 2015 with incident stages I-III CRC within 10-years post exposure assessment...
September 16, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28881611/inhibition-and-deficiency-of-the-immunoproteasome-subunit-lmp7-suppress-the-development-and-progression-of-colorectal-carcinoma-in-mice
#12
Julia Koerner, Thomas Brunner, Marcus Groettrup
New treatment options and drug targets for colorectal carcinoma are a pressing medical need. Inflammation and pro-inflammatory cytokines produced by Th1 and Th17 cells like IL-6, TNF, IL-17 and IL-23 promote the development and growth of colorectal cancer (CRC). The immunoproteasome is a proteasome subtype highly expressed in immune cells but also in the intestine. Since the immunoproteasome promotes Th1 and Th17 differentiation and pro-inflammatory cytokine production, we investigated here whether deficiency or inhibition of the immunoproteasome subunit LMP7 would interfere with CRC development and exacerbation in preventive and therapeutic mouse models...
August 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28865736/association-between-inflammatory-diet-pattern-and-risk-of-colorectal-carcinoma-subtypes-classified-by-immune-responses-to-tumor
#13
Li Liu, Reiko Nishihara, Zhi Rong Qian, Fred K Tabung, Daniel Nevo, Xuehong Zhang, Mingyang Song, Yin Cao, Kosuke Mima, Yohei Masugi, Yan Shi, Annacarolina da Silva, Tyler Twombly, Mancang Gu, Wanwan Li, Tsuyoshi Hamada, Keisuke Kosumi, Kentaro Inamura, Jonathan A Nowak, David A Drew, Paul Lochhead, Katsuhiko Nosho, Kana Wu, Molin Wang, Wendy S Garrett, Andrew T Chan, Charles S Fuchs, Edward L Giovannucci, Shuji Ogino
BACKGROUND & AIMS: Dietary patterns affect systemic and local intestinal inflammation, which have been linked to colorectal carcinogenesis. Chronic inflammation can interfere with the adaptive immune response. We investigated whether the association of a diet that promotes intestinal inflammation with risk of colorectal carcinoma was stronger for tumors with lower lymphocytic reactions than tumors with higher lymphocytic reactions. METHODS: We collected data from the molecular pathological epidemiology databases of 2 prospective cohort studies: the Nurses' Health Study (since 1976) and the Health Professionals Follow-Up Study (since 1986)...
September 1, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28844117/well-differentiated-thyroid-cancer-neovasculature-expresses-prostate-specific-membrane-antigen-a-possible-novel-therapeutic-target
#14
Maureen Moore, Suraj Panjwani, Rashmi Mathew, Michael Crowley, Yi-Fang Liu, Anna Aronova, Brendan Finnerty, Rasa Zarnegar, Thomas J Fahey, Theresa Scognamiglio
Prostate-specific membrane antigen (PSMA), a type II transmembrane glycoprotein receptor, is highly expressed in prostate cancer and in the tumor neovasculature of colon, breast, and adrenocortical tumors. Here, we analyzed PSMA expression in the neovasculature of various thyroid cancer subtypes and assessed whether PSMA expression is correlated with aggressive behavior. From a prospectively maintained database, we evaluated 91 samples from 68 patients, including 37 primary differentiated thyroid cancers (DTCs) [11 classic papillary (cPTC), 9 follicular-variant (FvPTC), 11 follicular (FTC), 6 radioactive iodine-refractory (RAIR)], 5 anaplastic (ATC) carcinomas, 9 distant and 12 lymph node metastases, 21 benign thyroid nodules, and 7 normal thyroid specimens...
December 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28837129/large-scale-comparative-metagenomics-of-blastocystis-a-common-member-of-the-human-gut-microbiome
#15
Francesco Beghini, Edoardo Pasolli, Tin Duy Truong, Lorenza Putignani, Simone M Cacciò, Nicola Segata
The influence of unicellular eukaryotic microorganisms on human gut health and disease is still largely unexplored. Blastocystis spp. commonly colonize the gut, but its clinical significance and ecological role are currently unsettled. We have developed a high-sensitivity bioinformatic pipeline to detect Blastocystis subtypes (STs) from shotgun metagenomics, and applied it to 12 large data sets, comprising 1689 subjects of different geographic origin, disease status and lifestyle. We confirmed and extended previous observations on the high prevalence the microrganism in the population (14...
August 22, 2017: ISME Journal
https://www.readbyqxmd.com/read/28751909/simultaneous-methylation-level-assessment-of-hundreds-of-cpg-sites-by-targeted-bisulfite-pcr-sequencing-tbpseq
#16
Kyuheum Jeon, Byungkuk Min, Jung S Park, Yong-Kook Kang
Methylated-DNA sequencing technologies are producing vast amounts of methylome data from cancer samples, from which cancer-associated differentially methylated CpG sites (cDMCs) are continuously identified and filed. The inclusion of as many cDMCs as possible helps improve the accuracy of cancer diagnosis and sometimes identify cancer subtypes. However, the lack of an established method for the analysis of 100s of cDMCs practically impedes their robust use in clinical medicine. Here, we tested the availability of targeted bisulfite-PCR-sequencing (TBPseq) technology for the assessment of methylation levels of a myriad of CpGs scattered over the genome...
2017: Frontiers in Genetics
https://www.readbyqxmd.com/read/28748988/-characterization-of-patients-with-sporadic-colorectal-cancer-following-the-new-consensus-molecular-subtypes-cms
#17
Ana María Wielandt, Cynthia Villarroel, Claudia Hurtado, Daniela Simian, Diego Zamorano, Maripaz Martínez, Magdalena Castro, María Teresa Vial, Udo Kronberg, Francisco López-Kostner
BACKGROUND: Colorectal cancer (CRC) is an heterogeneous disease. Three carcinogenic pathways determine its molecular profile: microsatellite instability (MSI), chromosomal instability (CIN) and CpG island methylator phenotype (CIMP). Based on the new molecular classification, four consensus CRC molecular subtypes (CMS) are established, which are related to clinical, pathological and biological characteristics of the tumor. AIM: To classify Chilean patients with sporadic CRC according to the new consensus molecular subtypes of carcinogenic pathways...
April 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/28748213/metabolic-reprogramming-underlies-metastatic-potential-in-an-obesity-responsive-murine-model-of-metastatic-triple-negative-breast-cancer
#18
Ciara H O'Flanagan, Emily L Rossi, Shannon B McDonell, Xuewen Chen, Yi-Hsuan Tsai, Joel S Parker, Jerry Usary, Charles M Perou, Stephen D Hursting
The vast majority of cancer-related deaths are due to metastatic disease, whereby primary tumor cells disseminate and colonize distal sites within the body. Triple negative breast cancer typically displays aberrant Wnt signaling, lacks effective targeted therapies, and compared with other breast cancer subtypes, is more likely to recur and metastasize. We developed a Wnt-driven lung metastasis model of triple negative breast cancer (metM-Wnt(lung)) through serial passaging of our previously described, nonmetastatic, claudin-low M-Wnt cell line...
2017: NPJ Breast Cancer
https://www.readbyqxmd.com/read/28742689/lymphangiogenic-gene-expression-is-associated-with-lymph-node-recurrence-and-poor-prognosis-after-partial-hepatectomy-for-colorectal-liver-metastasis
#19
Thomas T Vellinga, Onno Kranenburg, Nicola Frenkel, Inge Ubink, Dieuwke Marvin, Klaas Govaert, Susanne van Schelven, Jeroen Hagendoorn, Inne H Borel Rinkes
OBJECTIVES: To investigate the relevance of lymphangiogenic gene expression in primary and liver metastasis of colorectal cancer (CRC) and identify determinants of lymphatic invasion. BACKGROUND: Lymphatic development promoting vascular endothelial growth factor C (VEGFC) is associated with poor outcome in primary CRC. For colorectal liver metastasis (CRLM), intrahepatic lymph invasion and lymph node metastasis are poor prognostic factors. Exact biological factors promoting lymphatic involvement remain elusive, just as the association with molecular subtypes of CRC...
November 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28739799/lgr5-receptor-promotes-cell-cell-adhesion-in-stem-cells-and-colon-cancer-cells-via-the-iqgap1-rac1-pathway
#20
Kendra S Carmon, Xing Gong, Jing Yi, Ling Wu, Anthony Thomas, Catherine M Moore, Ikuo Masuho, David J Timson, Kirill A Martemyanov, Qingyun J Liu
Leucine-rich repeat-containing G protein-coupled receptor 5 (LGR5) is a bona fide marker of adult stem cells in several epithelial tissues, most notably in the intestinal crypts, and is highly up-regulated in many colorectal, hepatocellular, and ovarian cancers. LGR5 activation by R-spondin (RSPO) ligands potentiates Wnt/β-catenin signaling in vitro; however, deletion of LGR5 in stem cells has little or no effect on Wnt/β-catenin signaling or cell proliferation in vivo Remarkably, modulation of LGR5 expression has a major impact on the actin cytoskeletal structure and cell adhesion in the absence of RSPO stimulation, but the molecular mechanism is unclear...
September 8, 2017: Journal of Biological Chemistry
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