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https://www.readbyqxmd.com/read/28222111/a-meta-analysis-of-the-abscopal-effect-in-preclinical-models-is-the-biologically-effective-dose-a-relevant-physical-trigger
#1
Raffaella Marconi, Silvia Strolin, Gianluca Bossi, Lidia Strigari
BACKGROUND: Preclinical in vivo studies using small animals are considered crucial in translational cancer research and clinical implementation of novel treatments. This is of paramount relevance in radiobiology, especially for any technological developments permitted to deliver high doses in single or oligo-fractionated regimens, such as stereotactic ablative radiotherapy (SABR). In this context, clinical success in cancer treatment needs to be guaranteed, sparing normal tissue and preventing the potential spread of disease or local recurrence...
2017: PloS One
https://www.readbyqxmd.com/read/28220469/ascending-colon-cancer-with-synchronous-external-iliac-and-inguinal-lymph-node-metastases-but-without-regional-lymph-node-metastasis-a-case-report-and-brief-literature-review
#2
Yuki Kitano, Masafumi Kuramoto, Toshiro Masuda, Daisuke Kuroda, Kenichiro Yamamoto, Satoshi Ikeshima, Ken-Ichi Iyama, Shinya Shimada, Hideo Baba
Lymph node metastasis to the iliac or inguinal region of colon cancer is extremely rare. We experienced a case of ascending colon cancer with synchronous isolated right external iliac and inguinal lymph node metastases but without any regional lymph node metastasis. An 83-year-old woman was admitted to our hospital due to anemia. Colonoscopy and computed tomography revealed an ascending colon cancer and also right external iliac and inguinal lymph node swelling. Further examination by F-deoxyglucose positron emission tomography strongly suggested that these lymph nodes were metastatic...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28212885/epinephrine-promotes-cox-2-dependent-immune-suppression-in-myeloid-cells-and-cancer-tissues
#3
Ravikumar Muthuswamy, Nana J Okada, Frank J Jenkins, Kandace McGuire, Priscilla F McAuliffe, Herbert J Zeh, David L Bartlett, Callen Wallace, Simon Watkins, Jill D Henning, Dana H Bovbjerg, Pawel Kalinski
Activation of the sympathetic nervous system (e.g., due to stress) has been implicated in cancer progression and recurrence, but its cancer-promoting effects have been variable between different studies. Here, we report that although catecholamines, mediators of systemic sympathetic activity, display only weak immunosuppressive impact on their own, their combination with inflammatory signals leads to the induction of COX-2 and multiple COX-2-dependent suppressive factors in human myeloid cells and cancer tissues...
February 14, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28212584/hyaluronic-acid-serum-albumin-conjugate-based-nanoparticles-for-targeted-cancer-therapy
#4
Ravit Edelman, Yehuda G Assaraf, Inna Levitzky, Tal Shahar, Yoav D Livney
Multiple carcinomas including breast, ovarian, colon, lung and stomach cancer, overexpress the hyaluronic acid (HA) receptor, CD44. Overexpression of CD44 contributes to key cancer processes including tumor invasion, metastasis, recurrence, and chemoresistance. Herein, we devised novel targeted nanoparticles (NPs) for delivery of anticancer chemotherapeutics, comprised of self-assembling Maillard reaction-based conjugates of HA and bovine serum albumin (BSA). HA served as the hydrophilic block, and as the ligand for actively targeting cancer cells overexpressing CD44...
February 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212529/expression-of-the-cancer-stem-cell-markers-abcg2-and-oct-4-in-right-sided-colon-cancer-predicts-recurrence-and-poor-outcomes
#5
Jun Hu, Jian Li, Xin Yue, Jiacang Wang, Jianzhong Liu, Lin Sun, Dalu Kong
Right-sided colon cancer (RCC) has a poorer prognosis and a higher relapse rate than left-sided colon cancer (LCC). Like cancer stem cells (CSCs), RCC cells cannot be fully eradicated and are often involved in relapse or metastasis. Because CSCs may be linked with poor outcomes, CSC markers may have prognostic value in RCC. ATP-binding cassette sub-family G member 2 (ABCG2) and OCT-4 (also known as POU5F1) are among the most useful markers for CSC identification. We therefore examined the malignant behavior of ABCG2 and OCT-4 in vitro and in vivo, and their expression was assessed in pathology tissues obtained from clinicopathologically recurrent and non-recurrent cases...
February 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28209102/diverticulitis-in-the-young-population%C3%A2-reconsidering-conventional-recommendations
#6
U Syed, R Companioni, R Bansal, H Alkhawam, A Walfish
BACKGROUND: In the past diverticulitis was believed to be uncommon in the young population. However, there is growing concern suggesting that these patients develop more severe clinical symptoms and may require more frequent intervention. METHOD: We performed a retrospective chart review of patients with diverticulitis in individuals with age less than 40 years over an 8 year period (2007-2015). Diagnosis was confirmed with a CT scan. In addition to age we took into consideration race, gender, anemia (hematocrit< 41), leukocytosis (WBC > 12), BMI and whether it was an initial episode or recurrence...
July 2016: Acta Gastro-enterologica Belgica
https://www.readbyqxmd.com/read/28203556/complete-mesocolic-excision-in-right-hemicolectomy-comparison-between-hand-assisted-laparoscopic-and-open-approaches
#7
Qin-Song Sheng, Zhe Pan, Jin Chai, Xiao-Bin Cheng, Fan-Long Liu, Jin-Hai Wang, Wen-Bin Chen, Jian-Jiang Lin
PURPOSE: To demonstrate the feasibility, safety, and technical strategies of hand-assisted laparoscopic complete mesocolic excision (HAL-CME) and to compare oncological outcomes between HAL-CME and the open approach (O-CME) for right colon cancers. METHODS: Patients who were scheduled to undergo a right hemicolectomy were divided into HAL-CME and O-CME groups. Measured outcomes included demographic variables, perioperative parameters, and follow-up data. Demographic variables included age, sex distribution, body mass index (BMI), American Society of Anesthesiologists (ASA) physical status classification, previous abdominal surgery, tumor localization, and potential comorbidities...
February 2017: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/28197388/inhibition-of-tumor-growth-and-metastasis-by-emmprin-multiple-antigenic-peptide-map-vaccination-is-mediated-by-immune-modulation
#8
Elina Simanovich, Vera Brod, Maya M Rahat, Ella Drazdov, Miriam Walter, Jivan Shakya, Michal A Rahat
Previously, we have identified a new epitope in EMMPRIN, a multifunctional protein that mediates tumor cell-macrophage interactions and induces both MMP-9 and VEGF. Here, we synthesized this epitope as an octa-branched multiple antigenic peptide (MAP) to vaccinate mice implanted with subcutaneous syngeneic colon (CT26), prostate (TRAMP-C2) or renal (RENCA) cell line carcinomas. Vaccination inhibited, and sometimes regressed, tumor growth in a dose-dependent manner, reaching 94%, 71% and 72% inhibition, respectively, at a 50 μg dose (p < 0...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28194526/long-term-outcomes-after-treatment-for-t1-colorectal-carcinoma-a-multicenter-retrospective-cohort-study-of-hiroshima-gi-endoscopy-research-group
#9
Yuzuru Tamaru, Shiro Oka, Shinji Tanaka, Shinji Nagata, Yuko Hiraga, Toshio Kuwai, Akira Furudoi, Tadamasa Tamura, Masaki Kunihiro, Hideharu Okanobu, Koichi Nakadoi, Hiroyuki Kanao, Makoto Higashiyama, Koji Arihiro, Kazuya Kuraoka, Fumio Shimamoto, Kazuaki Chayama
BACKGROUND: We aimed to clarify the long-term outcomes of patients with T1 colorectal carcinoma (CRC) after endoscopic resection (ER) and surgical resection. METHODS: We examined T1 CRC patients treated during 1992-2008 and who had ≥5 years of follow-up. Patients who did not meet the curative criteria after ER according to the Japanese Society for Cancer of the Colon and Rectum (JSCCR) guidelines were defined as "non-endoscopically curable" and classified into three groups: ER alone (Group A: 121 patients), additional surgery after ER (Group B: 238 patients), and surgical resection alone (Group C: 342 patients)...
February 13, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28187878/embryonic-origin-of-primary-colon-cancer-predicts-survival-in-patients-undergoing-ablation-for-colorectal-liver-metastases
#10
S Yamashita, B C Odisio, S Y Huang, S E Kopetz, K Ahrar, Y S Chun, C Conrad, T A Aloia, S Gupta, S Harmoush, M E Hicks, J-N Vauthey
BACKGROUND: In patients with primary colorectal cancer (CRC) or unresectable metastatic CRC, midgut embryonic origin is associated with worse prognosis. The impact of embryonic origin on survival after ablation of colorectal liver metastases (CLM) is unclear. METHODS: We identified 74 patients with CLM who underwent percutaneous ablation during 2004-2015. Survival and recurrence after ablation of CLM from midgut origin (n = 18) and hindgut origin (n = 56) were analyzed...
January 29, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28185461/-epithelial-mesenchymal-transition-in-tumor-tissue-and-its-role-for-metastatic-spread-of-cancer
#11
V M Matějka, J Fínek, M Králíčková
BACKGROUND: Metastasis, recurrence, and resistance to chemotherapy are leading causes of the majority of cancer-related mortality worldwide. The process of metastasis can be artificially divided into a series of sequential, highly organized, and organ-specific steps. The underlying mechanisms are still poorly understood, but are believed to be mediated by epithelial-mesenchymal transition (EMT). First described in embryogenesis, EMT is a cellular reprogramming process in which epithelial cells acquire a mesenchymal phenotype...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28178692/monitoring-of-serum-carcinoembryonic-antigen-levels-after-curative-resection-of-colon-cancer-cutoff-values-determined-according-to-preoperative-levels-enhance-the-diagnostic-accuracy-for-recurrence
#12
Gota Saito, Sotaro Sadahiro, Hiroko Kamata, Hiroshi Miyakita, Kazutake Okada, Akira Tanaka, Toshiyuki Suzuki
OBJECTIVES: Serum carcinoembryonic antigen (CEA) has been widely used for postoperative surveillance for colorectal cancer. However, serum CEA has a poor diagnostic accuracy for detecting recurrence. We tested the hypothesis that determining cutoff values according to the preoperative serum CEA levels would enhance the diagnostic accuracy. METHODS: Serum CEA was measured before and 1-6 months after surgery in 783 patients with curatively resected colon cancer from 2005 through 2013...
February 9, 2017: Oncology
https://www.readbyqxmd.com/read/28178153/case-report-malignant-transformation-in-cronkhite-canada-syndrome-polyp
#13
Ye Zong, Haiying Zhao, Li Yu, Ming Ji, Yongdong Wu, Shutian Zhang
RATIONALE: Cronkhite-Canada syndrome (CCS) is a rare disease, the etiology of CCS is currently unknown. Although CCS is widely accepted as a benign disorder, the malignant potential of the polyps in CCS patients is yet controversial. PATIENT CONCERNS: A 55-year-old Chinese male was first admitted to Beijing Friendship Hospital with a 3-month history of frequent watery diarrhea (10-15 times/day), loss of taste, and a weight loss of 10 kg in August 2010. The left heel bone fracture in the patient occurred about 2 weeks prior to his diarrhea...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28169291/hotspots-of-aberrant-enhancer-activity-punctuate-the-colorectal-cancer-epigenome
#14
Andrea J Cohen, Alina Saiakhova, Olivia Corradin, Jennifer M Luppino, Katreya Lovrenert, Cynthia F Bartels, James J Morrow, Stephen C Mack, Gursimran Dhillon, Lydia Beard, Lois Myeroff, Matthew F Kalady, Joseph Willis, James E Bradner, Ruth A Keri, Nathan A Berger, Shondra M Pruett-Miller, Sanford D Markowitz, Peter C Scacheri
In addition to mutations in genes, aberrant enhancer element activity at non-coding regions of the genome is a key driver of tumorigenesis. Here, we perform epigenomic enhancer profiling of a cohort of more than forty genetically diverse human colorectal cancer (CRC) specimens. Using normal colonic crypt epithelium as a comparator, we identify enhancers with recurrently gained or lost activity across CRC specimens. Of the enhancers highly recurrently activated in CRC, most are constituents of super enhancers, are occupied by AP-1 and cohesin complex members, and originate from primed chromatin...
February 7, 2017: Nature Communications
https://www.readbyqxmd.com/read/28166202/cgi-99-promotes-breast-cancer-metastasis-via-autocrine-interleukin-6-signaling
#15
C Lin, W Liao, Y Jian, Y Peng, X Zhang, L Ye, Y Cui, B Wang, X Wu, Z Xiong, S Wu, J Li, X Wang, L Song
Metastatic relapse remains largely incurable and a major challenge of clinical management in breast cancer, but the underlying mechanisms are poorly understood. Herein, we report that CGI-99 is overexpressed in breast cancer tissues from patients with metastatic recurrence within 5 years. High CGI-99 significantly predicts poorer 5-year metastasis-free patient survival. We find that CGI-99 increases breast cancer stem cell properties, and potentiates efficient tumor lung colonization and outgrowth in vivo. Furthermore, we demonstrate that CGI-99 activates the autocrine interleukin-6 (IL-6)/STAT3 signaling by increasing the accumulation and activity of RNA polymerase II and p300 cofactor at the proximal promoter of IL-6...
February 6, 2017: Oncogene
https://www.readbyqxmd.com/read/28160966/influence-of-intraoperative-radiation-therapy-on-locally-advanced-and-recurrent-colorectal-tumors-a-16-year-experience
#16
Justin T Brady, Benjamin P Crawshaw, Barrington Murrell, Eslam M G Dosokey, Murad A Jabir, Scott R Steele, Sharon L Stein, Harry L Reynolds
BACKGROUND: Intraoperative radiation therapy (IORT) has been proposed as a tool to improve local control in patients with locally advanced primary or recurrent colorectal cancer. METHODS: A retrospective review (1999-2015) of all patients undergoing IORT for locally advanced or recurrent colorectal cancer at a single academic center was performed. Patient demographics, oncologic staging, short-term and long-term outcomes were reviewed. RESULTS: There were 77 patients (mean age 63 ± 11 years) identified, of whom 19 had colon cancer, 57 had rectal cancer, and 2 had appendiceal cancers...
January 3, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28154967/comparison-of-clinical-outcomes-between-laparoscopic-assisted-and-minilaparotomy-approaches-for-colon-cancer
#17
Zuoliang Liu, Tong Zhou, Guodong Yang, Guangjun Zhang
BACKGROUND/AIMS: The minilaparotomy approach is feasible for the resection of colon cancer. This study aimed to compare the clinical and oncological outcomes of minilaparotomy and laparoscopic approaches in patients with colon cancer. METHODS: We performed a retrospective analysis of consecutive patients undergoing minilaparotomy or laparoscopic resection for colon cancer from January 2009 to December 2014. RESULTS: There were 376 patients with colon cancer...
February 3, 2017: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/28139499/desmoplasia-influenced-recurrence-of-disease-and-mortality-in-stage-iii-colorectal-cancer-within-five-years-after-surgery-and-adjuvant-therapy
#18
Maddalena Zippi, Giorgio De Toma, Giovanni Minervini, Claudio Cassieri, Roberta Pica, Diodoro Colarusso, Simon Stock, Pietro Crispino
BACKGROUND/AIMS: In patients with colon cancer who undergo resection for potential cure, 40-60% have advanced locoregional disease (stage III). Those who are suitable for adjuvant treatment had a definite disease-free-survival benefit. The aim of the present study was to demonstrate whether the presence of desmoplasia influenced the mortality rate of stage III colorectal cancer (CRC) within 5 years from the surgery and adjuvant therapy. PATIENTS AND METHODS: Sixty-five patients with stage III CRC underwent resection and adjuvant therapy...
January 2017: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/28135678/curative-resection-for-locally-advanced-sigmoid-colon-cancer-using-neoadjuvant-chemotherapy-with-folfox-plus-panitumumab-a-case-report
#19
Kenji Tomizawa, Yuji Miura, Yudai Fukui, Yutaka Hanaoka, Shigeo Toda, Jin Moriyama, Naoko Inoshita, Yukinori Ozaki, Toshimi Takano, Shuichiro Matoba, Hiroya Kuroyanagi
INTRODUCTION: FOLFOX and panitumumab combined chemotherapy plays an important role for metastatic colorectal cancer. However the usefulness of this regimen for neoadjuvant therapy is unclear. CASE REPORT: A 67-year-old man with abdominal pain and pneumaturia was diagnosed with RAS wild-type sigmoid colon cancer with urinary bladder invasion and colovesical fistulas. Because the cancer was considered to be unresectable, a transverse-loop colostomy was performed. Colonoscopy and computed tomography revealed a marked reduction in the size of the primary tumor after six courses of FOLFOX4 (oxaliplatin, leucovorin, and 5-fluorouracil) plus panitumumab...
January 17, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28133353/-a-case-of-curatively-resected-ascending-colon-cancer-invading-the-duodenum-after-neoadjuvant-chemotherapy
#20
Takafumi Yachi, Akihiko Murata, Shinsuke Nishikawa, Kenichi Takahashi, Takayuki Morita, Kenichi Hakamada
A 64-year-old woman with anorexia and anemia was diagnosed with ascending colon cancer invading the duodenum. Considering the difficulty of curative resection, we first performed gastrojejunostomy and ileostomy. After surgery, the patient received FOLFIRI with cetuximab as neoadjuvant chemotherapy. After 9 courses of the regimen, enhanced computed tomography revealed shrinkage of the lesion, with the efficacy evaluated as a partial response. The patient underwent right hemico- lectomy and partial resection of the duodenum...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
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