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https://www.readbyqxmd.com/read/28301926/prediction-of-cancer-incidence-and-mortality-in-korea-2017
#1
Kyu-Won Jung, Young-Joo Won, Chang-Mo Oh, Hyun-Joo Kong, Duk Hyoung Lee, Kang Hyun Lee
Purpose: This study aimed to report on cancer incidence and mortality for the year 2017 in Korea in order to estimate the nation's current cancer burden. Materials and Methods: Cancer incidence data from 1999 to 2014 were obtained from the Korea National Cancer Incidence Database, and cancer mortality data from 1993 to 2015 were acquired from Statistics Korea. Cancer incidence and mortality were projected by fitting a linear regression model to observe age-specific cancer rates against observed years, and then multiplying the projected age-specific rates by the age-specific population...
March 17, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28300471/decoupling-of-dna-methylation-and-activity-of-intergenic-line-1-promoters-in-colorectal-cancer
#2
Natasha Vafadar-Isfahani, Christina Parr, Lara E McMillan, Juliane Sanner, Zhao Yeo, Stephen Saddington, Oliver Peacock, Hazel A Cruickshanks, Richard R Meehan, Jonathan N Lund, Cristina Tufarelli
Hypomethylation of LINE-1 repeats in cancer has been proposed as the main mechanism behind their activation; this assumption, however, was based on findings from early studies that were biased towards young and transpositionally active elements. Here, we investigate the relationship between methylation of two intergenic, transpositionally inactive LINE-1 elements and expression of the LINE-1 chimeric transcript (LCT) 13 and LCT14 driven by their antisense promoters (L1-ASP). Our data from DNA modification, expression, and 5'RACE analyses suggest that colorectal cancer methylation in the regions analyzed is not always associated with LCT repression...
March 16, 2017: Epigenetics: Official Journal of the DNA Methylation Society
https://www.readbyqxmd.com/read/28292007/magnetic-resonance-imaging-for-colorectal-cancer-metastasis-to-the-liver-comparative-effectiveness-research-for-the-choice-of-contrast-agents
#3
Nieun Seo, Mi-Suk Park, Kyunghwa Han, Kyung Ho Lee, Seong Ho Park, Gi Hong Choi, Jin-Young Choi, Yong Eun Chung, Myeong-Jin Kim
Purpose: This study was conducted to compare the diagnostic performance and early recurrence rate between gadoxetic acid-enhanced magnetic resonance imaging (Gd-EOB-MRI) and MRI with extracellular contrast agent (ECA-MRI) for evaluating hepatic lesions in colorectal cancer. Materials and Methods: Between 2005 and 2010, 418 colorectal cancer patients with both preoperative computed tomography (CT) and liver MRI were retrospectively reviewed. Image analysis was based on initial radiologic reports, and diagnostic performance was assessed based on the area under the receiver operating characteristic curve (AUROC)...
March 14, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28289659/single-center-experience-with-hyperthermic-intraperitoneal-chemotherapy
#4
Woo Ram Kim, Hyuk Hur, Byung Soh Min, Seung Hyuk Baik, Kang Young Lee, Nam Kyu Kim
PURPOSE: Cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) have been proposed for controlling peritoneal seeding metastasis in some kinds of cancers, including those of colorectal origin, but their safety and oncological benefits are subjects of debate. We present our early experience with those procedures. METHODS: Data were retrospectively collected from all patients with peritoneal carcinomatosis (PC) and pseudomyxoma peritonei (PMP) treated using CRS and HIPEC at Yonsei Cancer Center between July 2014 and July 2015...
February 2017: Annals of Coloproctology
https://www.readbyqxmd.com/read/28282001/lymph-node-micrometastasis-cannot-be-considered-as-positive-lymph-node-in-nonmetastatic-colorectal-cancer
#5
Kwang Dae Hong, Jun Won Um, Byung Wook Min, Woong-Bae Ji, Jung-Woo Choi, Young-Sik Kim
The prognostic value of micrometastasis in colorectal cancer (CRC) remains controversial. The study investigated whether lymph node (LN) micrometastasis can have prognostic value in CRC as compared with macrometastasis. The study included 488 patients with curatively resected stage I, II, or III CRC treated between 2004 and 2011. Immuohistochemical staining with monoclonal antibody CAM 5.2 was performed on negative LNs by hematoxylin-eosin staining. The prognostic value of LN micrometastasis was investigated in multivariate analysis...
February 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28277374/clinical-predictors-for-kras-codon-13-mutations-in-patients-with-colorectal-cancer
#6
Min S Kwak, Jae M Cha, Young H Cho, Sang H Kim, Jin Y Yoon, Jung W Jeon, Hyun P Shin, Kwang R Joo, Joung I Lee
GOALS: This study sought to clarify sex differences in KRAS mutations and clinical predictors of KRAS 13 codon mutations. BACKGROUND: Sex differences in KRAS mutations and predictors for KRAS codon 13 mutations in colorectal cancer (CRC) are unclear. STUDY: Between October 2007 and May 2016, 328 patients underwent surgery for CRCs that were analyzed for KRAS mutations at a referral university hospital. Sex differences in the rates and distributions of KRAS mutations, and factors predictive of overall KRAS and KRAS codon 13 mutations were analyzed...
March 8, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28273931/dietary-flavonoids-cyp1a1-genetic-variants-and-the-risk-of-colorectal-cancer-in-a-korean-population
#7
Young Ae Cho, Jeonghee Lee, Jae Hwan Oh, Hee Jin Chang, Dae Kyung Sohn, Aesun Shin, Jeongseon Kim
The role of dietary flavonoid intake in colorectal carcinogenesis might differ according to flavonoid subclasses and individual genetic variants related to carcinogen metabolism. Therefore, we examined whether greater dietary intake of flavonoid subclasses was associated with a lower risk of colorectal cancer and whether CYP1A1 genetic variants altered this association. A semi-quantitative food frequency questionnaire was used to assess the dietary intake of six flavonoid subclasses (flavonols, flavones, flavanones, flavan-3-ols, anthocyanidins, and isoflavones) in 923 patients with colorectal cancer and 1,846 controls; furthermore, CYP1A1 genetic variants (rs4646903 and rs1048943) were genotyped...
December 2017: Scientific Reports
https://www.readbyqxmd.com/read/28263311/a-subset-of-platinum-containing-chemotherapeutic-agents-kills-cells-by-inducing-ribosome-biogenesis-stress
#8
Peter M Bruno, Yunpeng Liu, Ga Young Park, Junko Murai, Catherine E Koch, Timothy J Eisen, Justin R Pritchard, Yves Pommier, Stephen J Lippard, Michael T Hemann
Cisplatin and its platinum analogs, carboplatin and oxaliplatin, are some of the most widely used cancer chemotherapeutics. Although cisplatin and carboplatin are used primarily in germ cell, breast and lung malignancies, oxaliplatin is instead used almost exclusively to treat colorectal and other gastrointestinal cancers. Here we utilize a unique, multi-platform genetic approach to study the mechanism of action of these clinically established platinum anti-cancer agents, as well as more recently developed cisplatin analogs...
February 27, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28258479/prevalence-and-clinicopathologic-molecular-characteristics-of-mismatch-repair-deficient-colorectal-cancer-in-the-under-50-year-old-japanese-population
#9
Okihide Suzuki, Hidetaka Eguchi, Noriyasu Chika, Takehiko Sakimoto, Keiichiro Ishibashi, Kensuke Kumamoto, Jun-Ichi Tamaru, Tetsuhiko Tachikawa, Kiwamu Akagi, Tomio Arai, Yasushi Okazaki, Hideyuki Ishida
PURPOSE: To clarify the prevalence and clinicopathologic/molecular characteristics of mismatch repair (MMR)-deficient colorectal cancer in the young Japanese population. METHODS: Immunohistochemical analyses for MMR proteins (MLH1, MSH2, MSH6, and PMS2) were performed in formalin-fixed paraffin-embedded sections prepared from the resected CRC specimens of 119 consecutive patients aged <50 years old, who underwent resection of the primary tumor at our institution between 1996 and 2015...
March 3, 2017: Surgery Today
https://www.readbyqxmd.com/read/28253245/reducing-the-polyp-burden-in-serrated-polyposis-by-serial-colonoscopy-the-impact-of-nationally-coordinated-community-surveillance
#10
Susan Parry, Randall W Burt, Aung Ko Win, Ye Kyaw Aung, Sonja Woodall, Julie Arnold, Mark Clendenning, Daniel D Buchanan, Timothy J Price, Christophe Rosty, Joanne P Young
BACKGROUND: Serrated polyposis syndrome (SPS) is associated with an increased risk of colorectal cancer (CRC) and an evolving management approach. The aims of this study were to assess the polyp burden reduction over time, and the incidence of CRC in serrated polyposis patients undergoing community surveillance. METHODS: This is an observational study based on prospectively collected data. A total of 96 SPS patients with no personal history of CRC were prospectively enrolled in a surveillance program under the guidance of a tertiary center...
March 3, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/28248415/colorectal-cancer-statistics-2017
#11
Rebecca L Siegel, Kimberly D Miller, Stacey A Fedewa, Dennis J Ahnen, Reinier G S Meester, Afsaneh Barzi, Ahmedin Jemal
Colorectal cancer (CRC) is one of the most common malignancies in the United States. Every 3 years, the American Cancer Society provides an update of CRC incidence, survival, and mortality rates and trends. Incidence data through 2013 were provided by the Surveillance, Epidemiology, and End Results program, the National Program of Cancer Registries, and the North American Association of Central Cancer Registries. Mortality data through 2014 were provided by the National Center for Health Statistics. CRC incidence rates are highest in Alaska Natives and blacks and lowest in Asian/Pacific Islanders, and they are 30% to 40% higher in men than in women...
March 1, 2017: CA: a Cancer Journal for Clinicians
https://www.readbyqxmd.com/read/28247965/lithocholic-acid-stimulates-il-8-expression-in-human-colorectal-cancer-cells-via-activation-of-erk1-2-mapk-and-suppression-of-stat3-activity
#12
Thi Thinh Nguyen, Sen Lian, Trong Thuan Ung, Yong Xia, Jae Young Han, Young Do Jung
The secondary bile acid lithocholic acid (LCA), an established tumor promoter, has been implicated in colorectal cancer (CRC) metastasis. Overexpression of interleukin-8 (IL-8) has been detected in CRC, and it contributes to poor prognosis. However, the effect of LCA on IL-8 expression is still undefined. In this study, we observed that LCA treatment induced IL-8 expression in CRC HCT116 cells. Pharmacological inhibition and mutagenesis studies indicated that Erk1/2 is critical for LCA-induced IL-8 expression...
March 1, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28243747/impact-of-the-prognostic-nutritional-index-on-the-recovery-and-long-term-oncologic-outcome-of-patients-with-colorectal-cancer
#13
Gyoung Tae Noh, Jeonghee Han, Min Soo Cho, Hyuk Hur, Byung Soh Min, Kang Young Lee, Nam Kyu Kim
PURPOSE: The prognostic nutritional index (PNI) has been reported to be a predictive marker for surgical outcomes and prognosis in gastrointestinal malignancies. In this study, we aimed to identify the impact of preoperative PNI on the recovery and long-term oncologic outcome of patients with colorectal cancer (CRC). METHODS: A total of 3569 patients who underwent curative resection for CRC were enrolled, and their medical records were analyzed retrospectively. Preoperative PNI was calculated as 10× serum albumin concentration (g/dL) + 0...
February 27, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28242162/molecular-screening-for-lynch-syndrome-in-young-patients-with-colorectal-adenomas
#14
Robin B Mendelsohn, Keri Herzog, Jinru Shia, Nadiyah Rahaman, Zsofia K Stadler, Moshe Shike
BACKGROUND: The frequency of mismatch repair (MMR) deficiency (dMMR) in patients < 50 years with adenomas without a known germline mutation is unknown. Our aim was to define the frequency of dMMRs in adenomas from patients aged < 50 years. PATIENTS AND METHODS: We identified all patients aged 18 to 49 years who had undergone colonoscopy at Memorial Sloan Kettering Cancer Center from 2008 to 2013 and were identified as having tubular, villous, or tubulovillous adenomas on pathology...
February 2, 2017: Clinical Colorectal Cancer
https://www.readbyqxmd.com/read/28239395/patterns-of-sociodemographic-and-clinicopathologic-characteristics-of-stages-ii-and-iii-colorectal-cancer-patients-by-age-examining-potential-mechanisms-of-young-onset-disease
#15
Caitlin C Murphy, Hanna K Sanoff, Karyn B Stitzenberg, John A Baron, Jennifer L Lund, Robert S Sandler
Background and Aims. As a first step toward understanding the increasing incidence of colorectal cancer (CRC) in younger (age < 50) populations, we examined demographic, clinicopathologic, and socioeconomic characteristics and treatment receipt in a population-based sample of patients newly diagnosed with stages II and III CRC. Methods. Patients were sampled from the National Cancer Institute's Patterns of Care studies in 1990/91, 1995, 2000, 2005, and 2010 (n = 6, 862). Tumor characteristics and treatment data were obtained through medical record review and physician verification...
2017: Journal of Cancer Epidemiology
https://www.readbyqxmd.com/read/28230863/oncogenic-role-of-rab-escort-protein-1-through-egfr-and-stat3-pathway
#16
Un-Jung Yun, Jee Young Sung, Seog-Yun Park, Sang-Kyu Ye, Jaegal Shim, Jae-Seon Lee, Masahiko Hibi, Young-Ki Bae, Yong-Nyun Kim
Rab escort protein-1 (REP1) is linked to choroideremia (CHM), an X-linked degenerative disorder caused by mutations of the gene encoding REP1 (CHM). REP1 mutant zebrafish showed excessive cell death throughout the body, including the eyes, indicating that REP1 is critical for cell survival, a hallmark of cancer. In the present study, we found that REP1 is overexpressed in human tumor tissues from cervical, lung, and colorectal cancer patients, whereas it is expressed at relatively low levels in the normal tissue counterparts...
February 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28228198/lymph-node-micrometastasis-cannot-be-considered-as-positive-lymph-node-in-nonmetastatic-colorectal-cancer
#17
Kwang Dae Hong, Jun Won Um, Byung Wook Min, Woong-Bae Ji, Jung-Woo Choi, Young-Sik Kim
The prognostic value of micrometastasis in colorectal cancer (CRC) remains controversial. The study investigated whether lymph node (LN) micrometastasis can have prognostic value in CRC as compared with macrometastasis. The study included 488 patients with curatively resected stage I, II, or III CRC treated between 2004 and 2011. Immuohistochemical staining with monoclonal antibody CAM 5.2 was performed on negative LNs by hematoxylin-eosin staining. The prognostic value of LN micrometastasis was investigated in multivariate analysis...
February 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28223103/her2-amplification-and-cetuximab-efficacy-in-patients-with-metastatic-colorectal-cancer-harboring-wild-type-ras-and-braf
#18
Jae Ho Jeong, Jihun Kim, Yong Sang Hong, Dalyong Kim, Jeong Eun Kim, Sun Young Kim, Kyu-Pyo Kim, Young-Kwang Yoon, Deokhoon Kim, Sung-Min Chun, Yangsoon Park, Se Jin Jang, Tae Won Kim
BACKGROUND: Cetuximab has shown clinical benefit in patients with metastatic colorectal cancer (mCRC) harboring wild-type RAS. Human epidermal growth factor receptor 2 (HER2) amplification may be a mechanism of cetuximab resistance. We evaluated the association between HER2 amplification and cetuximab efficacy in patients with mCRC harboring wild-type RAS and BRAF. PATIENTS AND METHODS: Between December 2003 and June 2013, we identified 142 patients with mCRC whose tumors harbored both wild-type exons 2, 3, and 4 in KRAS and NRAS, and wild-type exon 15 in BRAF using high throughput sequencing (OncoMap version 4...
January 25, 2017: Clinical Colorectal Cancer
https://www.readbyqxmd.com/read/28219002/molecular-testing-for-gastrointestinal-cancer
#19
REVIEW
Hye Seung Lee, Woo Ho Kim, Yoonjin Kwak, Jiwon Koh, Jeong Mo Bae, Kyoung-Mee Kim, Mee Soo Chang, Hye Seung Han, Joon Mee Kim, Hwal Woong Kim, Hee Kyung Chang, Young Hee Choi, Ji Y Park, Mi Jin Gu, Min Jin Lhee, Jung Yeon Kim, Hee Sung Kim, Mee-Yon Cho
With recent advances in molecular diagnostic methods and targeted cancer therapies, several molecular tests have been recommended for gastric cancer (GC) and colorectal cancer (CRC). Microsatellite instability analysis of gastrointestinal cancers is performed to screen for Lynch syndrome, predict favorable prognosis, and screen patients for immunotherapy. The epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor has been approved in metastatic CRCs with wildtype RAS (KRAS and NRAS exon 2-4). A BRAF mutation is required for predicting poor prognosis...
March 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28215705/kras-allelic-imbalance-enhances-fitness-and-modulates-map-kinase-dependence-in-cancer
#20
Michael R Burgess, Eugene Hwang, Rana Mroue, Craig M Bielski, Anica M Wandler, Benjamin J Huang, Ari J Firestone, Amy Young, Jennifer A Lacap, Lisa Crocker, Saurabh Asthana, Elizabeth M Davis, Jin Xu, Keiko Akagi, Michelle M Le Beau, Qing Li, Benjamin Haley, David Stokoe, Deepak Sampath, Barry S Taylor, Marie Evangelista, Kevin Shannon
Investigating therapeutic "outliers" that show exceptional responses to anti-cancer treatment can uncover biomarkers of drug sensitivity. We performed preclinical trials investigating primary murine acute myeloid leukemias (AMLs) generated by retroviral insertional mutagenesis in Kras(G12D) "knockin" mice with the MEK inhibitor PD0325901 (PD901). One outlier AML responded and exhibited intrinsic drug resistance at relapse. Loss of wild-type (WT) Kras enhanced the fitness of the dominant clone and rendered it sensitive to MEK inhibition...
February 23, 2017: Cell
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