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https://www.readbyqxmd.com/read/28087988/cpg-island-methylator-phenotype-is-an-independent-predictor-of-survival-after-curative-resection-for-colorectal-cancer-a-prospective-cohort-study
#1
Chang Hyun Kim, Jung Wook Huh, Hyeong Rok Kim, Young Jin Kim
BACKGROUND AND AIMS: The CpG island methylator phenotype (CIMP) is found in approximately 30% of colorectal cancer (CRC) cases. However, the role of CIMP status in predicting oncologic outcomes in curatively resected CRC is still unclear. STUDY: Between January 2006 and December 2006, we retrospectively reviewed 157 consecutive patients who underwent curative surgery for CRC. Prognostic significance of CIMP status was evaluated using reverse transcriptase-polymerase chain reaction...
January 14, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28077144/intraoperative-radiation-therapy-for-colon-and-rectal-cancers-a-clinical-review
#2
REVIEW
Michael G Haddock
Although there have been significant advances in the adjuvant therapy of colorectal cancer, results for patients have historically been poor when complete resection is unlikely or not possible. Similarly, locally recurrent colorectal cancer patients often experience significant tumor related morbidity and disease control and long term survival have historically been poor with standard therapies. Intraoperative radiation therapy (IORT) has been proposed as a possible tool for dose escalation in patients with locally advanced colorectal cancer...
January 11, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28064440/dietary-fibre-for-the-prevention-of-recurrent-colorectal-adenomas-and-carcinomas
#3
REVIEW
Yibo Yao, Tao Suo, Roland Andersson, Yongqing Cao, Chen Wang, Jingen Lu, Evelyne Chui
BACKGROUND: This is an update of the Cochrane review published in 2002.Colorectal cancer (CRC) is a major cause of morbidity and mortality in industrialised countries. Experimental evidence has supported the hypothesis that dietary fibre may protect against the development of CRC, although epidemiologic data have been inconclusive. OBJECTIVES: To assess the effect of dietary fibre on the recurrence of colorectal adenomatous polyps in people with a known history of adenomatous polyps and on the incidence of CRC compared to placebo...
January 8, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28054189/endoscopic-stenting-does-not-worsen-long-term-outcomes-amongst-patients-presenting-with-obstruction-from-colorectal-cancers
#4
Tian-Zhi Lim, Dedrick Kok Hong Chan, Ker-Kan Tan
BACKGROUND: Stenting has been increasingly adopted in colorectal cancer patients presenting with acute large bowel obstruction. However, long-term outcomes of stenting are lacking in the literature. Our study attempts to compare the long-term outcomes of colonic stenting and emergency surgery amongst left-sided colorectal cancer patients presenting with acute large bowel obstruction. METHODS: A retrospective review of all patients who presented with nonmetastatic colorectal cancer who underwent either endoscopic stenting or emergency surgery for acute large bowel obstruction was performed from January 2007 to April 2016...
January 4, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28042926/the-potential-impact-of-gut-microbiota-on-your-health-current-status-and-future-challenges
#5
Stitaya Sirisinha
Our health and probably also our behaviors and mood depend not only on what we eat or what we do (lifestyle behaviors), but also on what we host. It is well established for decades that all vertebrates including humans are colonized by a wide array of bacteria, fungi, eukaryotic parasites and viruses, and that, at steady state (homeostasis), this community of microbes establishes a friendly mutual relationship with the host. The term microbiota was originally meant to represent an ecological community of commensals and potentially pathogenic microbes that live within our bodies, but it is now used interchangeably with the term microbiome which was initially meant to represent a collective genome of the microbiota...
December 2016: Asian Pacific Journal of Allergy and Immunology
https://www.readbyqxmd.com/read/28041973/prognostic-significance-of-stromal-grem1-expression-in-colorectal-cancer
#6
Bo Gun Jang, Hye Sung Kim, Weon Young Chang, Jeong Mo Bae, Hyeon Jeong Oh, Xianyu Wen, Seorin Jeong, Nam Yun Cho, Woo Ho Kim, Gyeong Hoon Kang
Cancer associated fibroblasts (CAFs) are the dominant cell population in the cancer stroma. Gremlin 1 (GREM1), an antagonist of the bone morphogenetic protein pathway, is expressed by CAFs in a variety of human cancers. However, its biological significance for cancer patients is largely unknown. We applied RNA in situ hybridization (ISH) to evaluate the prognostic value of stromal GREM1 expression in a large cohort of 670 colorectal cancers (CRCs). Overall GREM1 expression in CRCs was lower than that of the matched normal mucosa, and GREM1 expression had a strong positive correlation with BMI1 and inverse correlations with EPHB2 and OLFM4...
December 29, 2016: Human Pathology
https://www.readbyqxmd.com/read/28040692/prognostic-value-of-braf%C3%A2-and%C3%A2-kras%C3%A2-mutations-in-msi-and-mss-stage-iii-colon-cancer
#7
Julien Taieb, Karine Le Malicot, Qian Shi, Frédérique Penault Lorca, Olivier Bouché, Josep Tabernero, Enrico Mini, Richard M Goldberg, Gunnar Folprecht, Jean Luc Van Laethem, Daniel J Sargent, Steven R Alberts, Jean Francois Emile, Pierre Laurent Puig, Frank A Sinicrope
BACKGROUND: The prognostic value of BRAF and KRAS mutations within microsatellite-unstable (MSI) and microsatellite-stable (MSS) subgroups of resected colon carcinoma patients remains controversial. We examined this question in prospectively collected biospecimens from stage III colon cancer with separate analysis of MSI and MSS tumors from patients receiving adjuvant FOLFOX +/- cetuximab in two adjuvant therapy trials. METHODS: Three groups were defined: BRAF Mutant, KRAS Mutant, and double wild-type...
May 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28035987/tumor-line-1-methylation-level-in-association-with-survival-of-patients-with-stage-ii-colon-cancer
#8
Marloes Swets, Anniek Zaalberg, Arnoud Boot, Tom van Wezel, Martine A Frouws, Esther Bastiaannet, Hans Gelderblom, Cornelis J H van de Velde, Peter J K Kuppen
Genome-wide DNA hypomethylation is associated with a worse prognosis in early-stage colorectal cancer. To measure genome-wide DNA methylation levels, long interspersed nucleotide element (LINE-1) repeats are used as a surrogate marker. Cohort studies on the clinical impact of genome-wide DNA methylation level in patients with only early-stage colon cancer, are currently lacking. This study aimed to investigate the prognostic value of LINE-1 methylation in a stage II colon cancer cohort (n = 164). Manual needle microdissection of tumor areas was performed on formalin-fixed paraffin-embedded tumor tissue sections followed by DNA extraction...
December 27, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28035252/signet-ring-colorectal-carcinoma-do-we-need-to-improve-the-treatment-algorithm
#9
Anup Sunil Tamhankar, Parag Ingle, Reena Engineer, Munita Bal, Vikas Ostwal, Avanish Saklani
AIM: To elaborate about this peculiar variant from a tertiary cancer center from India. METHODS: It's a retrospective study (2011-2014) of all patients diagnosed with signet ring colo-rectal cancer (SRCC). Various clinico-pathological variables were studied. RESULTS: One hundred and seventy consecutive patients with SRCC were diagnosed (11.4% of all colorectal cancers). Median Age of the cohort was 41 years. Most common location was recto-sigmoid area (54...
December 15, 2016: World Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28031175/adjuvant-folfox-cetuximab-in-full-ras-and-braf-wildtype-stage-iii-colon-cancer-patients
#10
J Taieb, R Balogoun, K Le Malicot, J Tabernero, E Mini, G Folprecht, J-L Van Laethem, J-F Emile, C Mulot, S Fratté, C-B Levaché, L Saban-Roche, J Thaler, L N Petersen, J Bridgewater, G Perkins, C Lepage, E Van Cutsem, A Zaanan, P Laurent-Puig
BACKGROUND: RAS mutations have been shown to confer resistance to anti-EGFR treatment. We analyzed the results of the PETACC8 trial (cetuximab + FOLFOX vs FOLFOX) in full RAS and BRAF wildtype (WT) patients (pts) with resected stage III colon cancer. METHODS: Exons 2, 3 and 4 of KRAS and NRAS, and BRAF exons 11 and 15, were sequenced using the Ampliseq colon-lung cancer panel version 2, in PETACC8 trial pts who consented to translational research. The impact of cetuximab on time to recurrence (TTR), disease-free survival (DFS) and overall survival (OS) was investigated in pts with tumors harboring RAS & BRAF WT and RAS mutations...
December 28, 2016: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28028388/detection-of-cancer-stem-cells-in-colorectal-cancer-histopathological-and-immunohistochemical-study
#11
Nour El Hoda S Ismaiel, Walid M Sharaf, Dina O Helmy, Mona M Zaki, Manal A Badawi, Ahmed S A Soliman
BACKGROUND: Growing evidence supports the notion that the onset of tumorigenesis could occur through cancer stem cells (CSCs). These tumour cells show low proliferative rates, high self-renewal capacity, propensity to differentiate into active proliferating tumour cells & resistance to chemoradiotherapy thus, possibly causing local recurrences & metastasis formation. CD44 has been used as a marker to isolate CSCs from colorectal carcinoma (CRC). AIM: To investigate the immunohistochemical expression of cancer stem cells marker (CD44) in CRC and correlate its expression with the clinicopathological aspects, TNM staging and modified Dukes' classification...
December 15, 2016: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28028374/-en-bloc-caudate-lobe-and-inferior-vena-cava-resection-following-cytoreductive-surgery-and-hyperthermic-intraperitoneal-chemotherapy-for-peritoneal-and-liver-metastasis-of-colorectal-cancer
#12
Patricia Sánchez-Velázquez, Nicolas Moosmann, Ingolf Töpel, Pompiliu Piso
There are diverse protocols to manage patients with recurrent disease after primary cytoreductive surgery (CRS) with hyperthermic intraperitoneal chemotherapy (HIPEC) for peritoneal carcinomatosis. We describe a case of metachronous liver metastasis after CRS and HIPEC for colorectal cancer, successfully treated with a selective metastectomy and partial graft of the inferior vena cava. A 35-year-old female presented with a large tumour in the cecum and consequent colonic stenosis. After an emergency right colectomy, the patient received adjuvant chemotherapy...
December 14, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28028260/-a-case-of-poorly-differentiated-adenocarcinoma-of-the-colon-with-rapid-postoperative-progression-suggestive-of-peritoneal-dissemination
#13
Shunsuke Tamura, Takashi Hamano, Yoshifumi Arai, Yoshiro Otsuki, Yasuyuki Kobayashi
A 62-year-old man was admitted to our hospital because of pain in the right lower abdomen and was diagnosed with cecal cancer and an associated abscess. The patient subsequently underwent right hemicolectomy. Histopathological examination was positive for por1, se, bd3, ly3, v0, PM0, and DM0. He was discharged from the hospital 21 days postoperatively. He was hospitalized with bloating of the right lower abdomen and inflammation 31 days postoperatively. He was later diagnosed with recurrence of the initial abscess, but his symptoms did not improve, and he was considered to have peritoneal dissemination...
December 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28008206/aggressive-resection-of-frequent-peritoneal-recurrences-in-colorectal-cancer-contributes-to-long-term-survival
#14
Koji Komori, Takashi Kinoshita, Oshiro Taihei, Seiji Ito, Tetsuya Abe, Yoshiki Senda, Kazunari Misawa, Yuich Ito, Norihisa Uemura, Seiji Natsume, Jiro Kawakami, Akira Ouchi, Masayuki Tsutsuyama, Takahiro Hosoi, Itaru Shigeyoshi, Tomoyuki Akazawa, Daisuke Hayashi, Hideharu Tanaka, Yasuhiro Shimizu
We report a long-term survivor of colorectal cancer who underwent aggressive, frequent resection for peritoneal recurrences. A 58-year-old woman was diagnosed with descending colon cancer. Resection of the descending colon along with lymph node dissection was performed in September 2006. The pathological findings revealed Stage IIA colorectal cancer. The following peritoneal recurrences were removed: two in July 2007, two in the omental fat and two in the pouch of Douglas in June 2008 resected by low anterior resection of the rectum, one in the uterus and right ovarian recurrence resected via bilateral adnexectomy and Hartmann's procedure in May 2011, and one in the ascending colon by partial resection of the colon wall in December 2011...
December 2016: Nagoya Journal of Medical Science
https://www.readbyqxmd.com/read/28006840/copy-number-variations-in-dcc-18q-and-erbb2-17q-are-associated-with-disease-free-survival-in-microsatellite-stable-colon-cancer
#15
David Sefrioui, Thomas Vermeulin, France Blanchard, Caroline Chapusot, Ludivine Beaussire, Laura Armengol-Debeir, Richard Sesboué, Alice Gangloff, Mohamed Hebbar, Marie-Christine Copin, Estelle Houivet, Lilian Schwarz, Florian Clatot, Jean-Jacques Tuech, Jacques Bénichou, Laurent Martin, Anne-Marie Bouvier, Jean-Christophe Sabourin, Nasrin Sarafan-Vasseur, Thierry Frébourg, Côme Lepage, Pierre Michel, Frédéric Di Fiore
We conducted a prospective study to assess the prognostic impact of selected copy number variations (CNVs) in stage II-III microsatellite stable (MSS) colon cancer. A total of 401 patients were included from 01/2004 to 01/2009. The CNVs in 8 selected target genes, DCC/18q, EGFR/7p, TP53/17p, BLK/8p, MYC/8q, APC/5q, ERBB2/17q, and STK6/20q, were detected using a quantitative multiplex polymerase chain reaction of short fluorescent fragment (QMPSF) method. The primary end-point was the impact of the CNVs on the 4-year disease-free survival (DFS)...
December 22, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28006055/association-of-dna-mismatch-repair-and-mutations-in-braf-and-kras-with-survival-after-recurrence-in-stage-iii-colon-cancers-a-secondary-analysis-of-2-randomized-clinical-trials
#16
Frank A Sinicrope, Qian Shi, Carmen J Allegra, Thomas C Smyrk, Stephen N Thibodeau, Richard M Goldberg, Jeffrey P Meyers, Kay L Pogue-Geile, Greg Yothers, Daniel J Sargent, Steven R Alberts
Importance: The association of biomarkers with patient survival after recurrence (SAR) of cancer is poorly understood but may guide management and treatment. Objective: To determine the association of DNA mismatch repair (MMR) status and somatic mutation in the B-Raf proto-oncogene (c.1799T>A [V600E]; BRAFV600E) or exon 2 of the KRAS proto-oncogene (KRAS) in the primary tumor with SAR in patients with stage III colon carcinomas treated with adjuvant chemotherapy...
December 22, 2016: JAMA Oncology
https://www.readbyqxmd.com/read/28004223/identification-of-msh2-inversion-of-exons-1-7-in-clinical-evaluation-of-families-with-suspected-lynch-syndrome
#17
Maureen E Mork, Andrea Rodriguez, Melissa W Taggart, Miguel A Rodriguez-Bigas, Patrick M Lynch, Sarah A Bannon, Y Nancy You, Eduardo Vilar
Traditional germline sequencing and deletion/duplication analysis does not detect Lynch syndrome-causing mutations in all individuals whose colorectal or endometrial tumors demonstrate mismatch repair (MMR) deficiency. Unique inversions and other rearrangements of the MMR genes have been reported in families with Lynch syndrome. In 2014, a recurrent inversion of MSH2 exons 1-7 was identified in five families suspected to have Lynch syndrome. We aimed to describe our clinical experience in identifying families with this specific inversion...
December 21, 2016: Familial Cancer
https://www.readbyqxmd.com/read/28002060/embryonic-origin-of-primary-colon-cancer-predicts-pathologic-response-and-survival-in-patients-undergoing-resection-for-colon-cancer-liver-metastases
#18
Suguru Yamashita, Kristoffer Watten Brudvik, Scott E Kopetz, Dipen Maru, Callisia N Clarke, Guillaume Passot, Claudius Conrad, Yun Shin Chun, Thomas A Aloia, Jean-Nicolas Vauthey
BACKGROUND: The aim of this study was to determine the prognostic value of embryonic origin in patients undergoing resection after chemotherapy for colon cancer liver metastases (CCLM). METHODS: We identified 725 patients with primary colon cancer and known RAS mutation status who underwent hepatic resection after preoperative chemotherapy for CCLM (1990 to 2015). Survival after resection of CCLM from midgut origin (n = 238) and hindgut origin (n = 487) was analyzed...
December 19, 2016: Annals of Surgery
https://www.readbyqxmd.com/read/27998790/a-15-gene-signature-for-prediction-of-colon-cancer-recurrence-and-prognosis-based-on-svm
#19
Guangru Xu, Minghui Zhang, Hongxing Zhu, Jinhua Xu
OBJECTIVE: To screen the gene signature for distinguishing patients with high risks from those with low-risks for colon cancer recurrence and predicting their prognosis. METHODS: Five microarray datasets of colon cancer samples were collected from Gene Expression Omnibus database and one was obtained from The Cancer Genome Atlas (TCGA). After preprocessing, data in GSE17537 were analyzed using the Linear Models for Microarray data (LIMMA) method to identify the differentially expressed genes (DEGs)...
March 10, 2017: Gene
https://www.readbyqxmd.com/read/27995452/an-optimal-approach-for-laparoscopic-d3-lymphadenectomy-plus-complete-mesocolic-excision-d3-cme-for-right-sided-colon-cancer
#20
Daxing Xie, Chaoran Yu, Chun Gao, Hasan Osaiweran, Junbo Hu, Jianping Gong
BACKGROUND: It is common knowledge that high ligation of blood vessels at the D3 level and complete mesocolic excision (CME) are two critical points of right hemicolectomy for right colon cancer (RCC). (1-5) To date, a safe strategy for completing these two procedures under laparoscopic surgery has not been extensively described. The authors provide a video to demonstrate laparoscopic right hemicolectomy (D3 + CME) with an optimal mesentery-defined approach. By identifying three "tri-junctions," this approach facilitates dissection of the entire mesocolon along the embryologic planes as far centrally as possible and enables the high tie of feeding vessels at bifurcation...
December 19, 2016: Annals of Surgical Oncology
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