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https://www.readbyqxmd.com/read/28942428/cancer-stem-cells-in-colorectal-cancer-a-review
#1
REVIEW
Matthew J Munro, Susrutha K Wickremesekera, Lifeng Peng, Swee T Tan, Tinte Itinteang
Colorectal cancer (CRC) is the second most common cancer in women and the third most common in men. Adenocarcinoma accounts for 90% of CRC cases. There has been accumulating evidence in support of the cancer stem cell (CSC) concept of cancer which proposes that CSCs are central in the initiation of cancer. CSCs have been the focus of study in a range of cancers, including CRC. This has led to the identification and understanding of genes involved in the induction and maintenance of pluripotency of stem cells, and markers for CSCs, including those investigated specifically in CRC...
September 23, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28938477/growth-hormone-and-the-epithelial-to-mesenchymal-transition
#2
Alison L Brittain, Reetobrata Basu, Yanrong Qian, John J Kopchick
Context: Previous studies have implicated growth hormone (GH) in the progression of several cancers, including breast, colorectal and pancreatic. A mechanism by which GH may play this role in cancer is through the induction of the epithelial-to-mesenchymal transition (EMT). During the EMT process, epithelial cells lose their defining phenotypes causing loss of cellular adhesion and increased cell migration. This review aims to carefully summarize the previous two decades of research that points to GH as an initiator of EMT, in both cancerous and non-cancerous tissues...
August 4, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28937798/dual-effects-of-resveratrol-on-cell-death-and-proliferation-of-colon-cancer-cells
#3
Álvaro San Hipólito-Luengo, Antonio Alcaide, Mariella Ramos-González, Elena Cercas, Susana Vallejo, Alejandra Romero, Elena Talero, Carlos F Sánchez-Ferrer, Virginia Motilva, Concepción Peiró
Colorectal cancer remains a main cause of deaths worldwide, and novel agents are being searched to treat this disease. Polyphenols have emerged as promising therapeutic tools in cancer. Resveratrol (3,5,4'-trihydoxy-trans-stilbene) induces cell death in different tumor cell lines, and it also stimulates the proliferation of specific breast and prostate cancer cell lines. Here, we studied the impact of resveratrol over a 100-fold concentration range on cell death and proliferation of HT-29 colorectal adenocarcinoma cells...
September 22, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28937020/unique-characteristics-of-arid1a-mutation-and-protein-level-in-gastric-and-colorectal-cancer-a-meta-analysis
#4
REVIEW
Young-Sik Kim, Hoiseon Jeong, Jung-Woo Choi, Hwa Eun Oh, Ju-Han Lee
BACKGROUND/AIM: Recently, AT-rich interactive domain-containing 1A protein (ARID1A) has been identified as a novel tumor suppressor gene in gastric cancer (GC) and colorectal cancer (CRC). However, the clinicopathologic value of ARID1A mutation or protein level in GC and CRC patients is controversial. Hence, we conducted a meta-analysis on the relationship between ARID1A aberrations and clinicopathologic parameters in GC and CRC. MATERIALS AND METHODS: Relevant published studies were selected from PubMed and EMBASE...
September 2017: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/28936923/egfr-pathway-subgroups-in-chilean-colorectal-cancer-patients-detected-by-mutational-and-expression-profiles-associated-to-different-clinicopathological-features
#5
Karin Alvarez, Paulina Orellana, Cynthia Villarroel, Luis Contreras, Hiroshi Kawachi, Maki Kobayashi, Ana Maria Wielandt, Marjorie De la Fuente, Juan Carlos Triviño, Udo Kronberg, Pilar Carvallo, Francisco López-Köstner
Colorectal cancer is a multistep process affecting several signaling pathways including EGFR (epidermal growth factor receptor), a therapeutic target for metastatic disease. Our aim was to characterize the mutational and expression profiles of the EGFR pathway in colorectal tumors and to integrate these results according to five previously defined groups. We screened seven genes for mutations ( KRAS-BRAF-PIK3CA-PIK3R1-AKT1-MAP2K1-PTEN) and six proteins (EGFR-p110α-p85α-PTEN-phosphoAKT-phosphoMEK1) by immunohistochemistry, PTEN deletion, and MSI...
September 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28936810/phosphorylated-cxcr4-expression-has-a-positive-prognostic-impact-in-colorectal-cancer
#6
B Weixler, F Renetseder, I Facile, N Tosti, E Cremonesi, A Tampakis, T Delko, S Eppenberger-Castori, A Tzankov, G Iezzi, C Kettelhack, S D Soysal, U von Holzen, G C Spagnoli, L Terracciano, L Tornillo, Raoul A Droeser, S Däster
BACKGROUND: The CXCL12-CXCR4 chemokine axis plays an important role in cell trafficking as well as in tumor progression. In colorectal cancer (CRC), the chemokine receptor CXCR4 has been shown to be an unfavorable prognostic factor in some studies, however, the role of its activated (phosphorylated) form, pCXCR4, has not yet been evaluated. Here, we aimed to investigate the prognostic value of CXCR4 and pCXCR4 in a large cohort of CRC patients. PATIENTS AND METHODS: A tissue microarray (TMA) of 684 patient specimens of primary CRCs was analyzed by immunohistochemistry (IHC) for the expression of CXCR4 and pCXCR4 by tumor cells and tumor-infiltrating immune cells (TICs)...
September 21, 2017: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/28936799/proteomic-features-of-colorectal-cancer-identify-tumor-subtypes-independent-of-oncogenic-mutations-and-independently-predict-relapse-free-survival
#7
Callisia N Clarke, Michael S Lee, Wei Wei, Ganiraju Manyam, Zhi-Qin Jiang, Yiling Lu, Jeffrey Morris, Bradley Broom, David Menter, Eduardo Vilar-Sanchez, Kanwal Raghav, Cathy Eng, George J Chang, Iris Simon, Rene Bernards, Michael Overman, Gordon B Mills, Dipen Maru, Scott Kopetz
BACKGROUND: The directed study of the functional proteome in colorectal cancer (CRC) has identified critical protein markers and signaling pathways; however, the prognostic relevance of many of these proteins remains unclear. METHODS: We determined the prognostic implications of the functional proteome in 263 CRC tumor samples from patients treated at MD Anderson Cancer Center (MDACC) and 462 patients from The Cancer Genome Atlas (TCGA) to identify patterns of protein expression that drive tumorigenesis...
September 21, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28932634/pd1-positive-tumor-infiltrating-lymphocytes-are-associated-with-poor-clinical-outcome-after-pulmonary-metastasectomy-for-colorectal-cancer
#8
Dagmar Kollmann, Thomas Schweiger, Stefan Schwarz, Desislava Ignatova, Yun-Tsan Chang, Gerrit Lewik, Sebastian F Schoppmann, Wolfram Hoetzenecker, Walter Klepetko, Emmanuella Guenova, Konrad Hoetzenecker
Pulmonary metastasectomy (PM) is routinely performed in colorectal cancer (CRC) patients with oligometastatic spreading to the lungs. Patients with an aggressive tumor phenotype should be excluded from PM, since its benefit is outweighed by early tumor recurrence and impaired prognosis. Expression of PD-1 and its ligands are prognostic factors in a variety of primary tumors. However, their impact on patients' outcome in the setting of PM for CRC has not been evaluated before. 53 CRC patients with pulmonary metastases receiving PM with curative intent were included in this study...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28930817/cronkhite-canada-syndrome-associated-with-colon-cancer-metastatic-to-liver-a-case-report
#9
Jing Wang, Lei Zhao, Nina Ma, Juanjuan Che, Huihui Li, Bangwei Cao
RATIONALE: Cronkhite-Canada Syndrome (CCS) is an idiopathic, nonhereditary syndrome haracterized by gastrointestinal (GI) polyposis and ectodermal changes including alopecia, onychatrophia, and pigmentation. CCS colon polyps were previously considered to be benign neoplasms. However, serrated adenoma was reported to be associated with malignant neoplasms in some cases of gastric and colorectal carcinomas, and esophageal cancers. Although malignant colon and gastric cancer have been reported in CCS, reports of distant metastasis have been rare in CCS...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28928860/the-impact-of-cetuximab-plus-akt-or-mtor-inhibitor-in-a-patient-derived-colon-cancer-cell-model-with-wild-type-ras-and-pik3ca-mutation
#10
Ju Sun Kim, Jung Eun Kim, Kyung Kim, Jeeyun Lee, Joon Oh Park, Ho Yeong Lim, Young Suk Park, Won Ki Kang, Seung Tae Kim
Background: Anti-EGFR therapies have been recommended for advanced colorectal cancer (CRC) with wild-type RAS and PIK3CA mutation. However, PIK3CA mutations are a poor prognostic marker and a negative predictor of response to anti-EGFR therapies in RAS wild-type CRC. Therefore, new and advanced treatment strategies are needed for personalized medical treatment of patients with wild-type RAS and PIK3CA mutation. Methods: Patient-derived tumor cells were collected from the ascites of a refractory colon cancer patient with wild-type RAS and PIK3CA mutation...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28927135/comparison-of-the-protein-expression-of-calpain-1-calpain-2-calpastatin-and-calmodulin-between-gastric-cancer-and-normal-gastric-mucosa
#11
Bide Liu, Yu Zhou, Dan Lu, Yong Liu, Si-Quan Zhang, Yan Xu, Wei Li, Xiao Gu
The understanding of molecular mechanisms that are involved in the development and the progression of gastric cancer (GC) are of importance for the diagnosis and treatment. The calpain system, which contains the calpains and the endogenous inhibitor, has been suggested as an important factor in the tumorigenesis and migration of colorectal adenocarcinoma, breast and ovarian cancer, and as a prognostic marker for GC. However, the expression level of calpain system proteins in GC and normal-appearing peritumoral gastric mucosa remain unknown...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927104/antisense-rna-transcripts-in-the-blood-may-be-novel-diagnostic-markers-for-colorectal-cancer
#12
Tomohiro Kurokawa, Keisuke Kohno, Kentaro Nagai, Mitsuru Chiba, Sugiru Pak, Soichiro Murata, Kiyoshi Fukunaga, Hiroshi Yasue, Nobuhiro Ohkohchi
Numerous genetic studies have been conducted regarding the occurrence of colorectal cancer (CRC) and the prognosis using microarrays. However, adequate investigations into the diagnostic application of microarrays have yet to be performed. The simplicity and accuracy of diagnosis and prognosis tracking are important requirements for its processes, and the use of blood cells for diagnosis is considered to be suitable to meet these requirements. The patients involved in the study were 28 preoperative patients with CRC and 6 healthy individuals who served as controls...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28926134/early-genetic-aberrations-in-patients-with-sporadic-colorectal-cancer
#13
Brooke R Druliner, Xiaoyang Ruan, Hugues Sicotte, Daniel O'Brien, Hongfang Liu, Jean-Pierre A Kocher, Lisa Boardman
Chromosome instability (CIN) is widely observed in both sporadic and hereditary colorectal cancer (CRC). Defects in APC and WNT signaling are primarily associated with CIN in hereditary CRC, but the genetic causes for CIN in sporadic CRC remain elusive. Using high-density SNP array and exome data from The Cancer Genome Atlas, we characterized loss of heterozygosity (LOH) and copy number variation (CNV) in the peripheral blood, normal colon and corresponding tumor tissue in 15 CRC patients with proficient mismatch repair (MMR) and 24 CRC patients with deficient MMR...
September 19, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28925398/functional-significance-and-therapeutic-implication-of-ring-type-e3-ligases-in-colorectal-cancer
#14
REVIEW
L Liu, C C Wong, B Gong, J Yu
Accumulative studies revealed that E3 ubiquitin ligases have important roles in colorectal carcinogenesis. The pathogenic mechanisms of colorectal cancer (CRC) initiation and progression are complex and heterogeneous, involving somatic mutations, abnormal gene fusion, deletion or amplification and epigenetic alteration, which may cause aberrant expression or altered function of E3 ligases in CRC. Defects of E3 ligases have been reported to be involved in the molecular etiology and pathogenesis of CRC. The aberrant expressed E3 ligases can function as either oncogenes or tumor suppressors depending on ubiquiting target substrates in CRC...
September 18, 2017: Oncogene
https://www.readbyqxmd.com/read/28923329/prognostic-correlation-between-mfg-e8-expression-level-and-colorectal-cancer
#15
Min Jia, Huaning Yao, Chao Chen, Yueqin Wang, Han Wang, Tianpen Cui, Jianhua Zhu
BACKGROUND AND AIMS: Colorectal cancer (CRC) is one of the leading causes of cancer-related death all over the world. Milk fat globule-epidermal growth factor (EGF)-factor VIII (MFG-E8) was found to be highly expressed in a variety of cancers. However its role in CRC is unclear. This study investigates the expression of MFG-E8 in CRC tissues and the correlation with clinicopathological features and prognosis in CRC patients. METHODS: The expression of MFG-E8 proteins was detected by immunohistochemical staining in 90 samples of CRC...
April 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/28918433/procalcitonin-and-c-reactive-protein-as-early-markers-of-postoperative-intra-abdominal-infection-in-patients-operated-on-colorectal-cancer
#16
E Domínguez-Comesaña, S M Estevez-Fernández, V López-Gómez, J Ballinas-Miranda, R Domínguez-Fernández
PURPOSE: The aim of this study was to evaluate the accuracy of serum procalcitonin (PCT) and C-reactive protein (CRP) for early diagnosis of postoperative intra-abdominal infections (PIAI) after elective surgery for colorectal cancer. METHODS: Prospective observational study including patients operated on for colorectal cancer between January and December of 2015 was performed. Serum PCT and CRP levels were measured before surgery and daily until postoperative day 3...
September 16, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28918047/long-noncoding-rna-bc032913-as-a-novel-therapeutic-target-for-colorectal-cancer-that-suppresses-metastasis-by-upregulating-timp3
#17
Jiaxin Lin, Xin Tan, Lin Qiu, Long Huang, Yi Zhou, Zhizhong Pan, Ranyi Liu, Shuai Chen, Rong Geng, Jiangxue Wu, Wenlin Huang
Long noncoding RNAs (lncRNAs) have been shown to play critical roles in the biology of various cancers. However, their expression patterns and biological functions in human colorectal cancer (CRC) remain largely unknown. The aim of this study was to explore lncRNA profiles in CRC and investigate key lncRNAs involved in CRC tumorigenesis and progression. The microarray data of six CRC and matched non-cancerous tissues revealed distinct lncRNA profiles, including 899 upregulated and 1,646 downregulated lncRNAs (p < 0...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28916426/prognostic-relevance-of-tripartite-motif-containing-24-expression-in-colorectal-cancer
#18
Feng-Qin Wang, Yan Han, WenJuan Yao, Jing Yu
Colorectal cancer is one of the most frequent malignancies in the world. Tripartite motif containing 24 (TRIM24) is a member of the TRIM protein family and a coregulator for multiple nuclear receptors. Altered expression of TRIM24 has been shown in a spectrum of human cancers. However, the clinical role of TRIM24 in colorectal cancer remains unknown. Here, gene expression data in colorectal cancer and normal tissues were downloaded from Gene Expression Omnibus (GEO). Western blotting analysis was conducted to compare TRIM24 expression between colorectal cancer and non-cancerous tissues...
August 25, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28915668/nsc30049-inhibits-chk1-pathway-in-5-fu-resistant-crc-bulk-and-stem-cell-populations
#19
Satya Narayan, Aruna S Jaiswal, Ritika Sharma, Akbar Nawab, Lizette Vila Duckworth, Brian K Law, Maria Zajac-Kaye, Thomas J George, Jay Sharma, Arun K Sharma, Robert A Hromas
The 5-fluorouracil (5-FU) treatment induces DNA damage and stalling of DNA replication forks. These stalled replication forks then collapse to form one sided double-strand breaks, leading to apoptosis. However, colorectal cancer (CRC) stem cells rapidly repair the stalled/collapsed replication forks and overcome treatment effects. Recent evidence suggests a critical role of checkpoint kinase 1 (Chk1) in preventing the replicative stress. Therefore, Chk1 kinase has been a target for developing mono or combination therapeutic agents...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28903410/rassf6-downregulation-promotes-the-epithelial-mesenchymal-transition-and-predicts-poor-prognosis-in-colorectal-cancer
#20
Rui Zhou, Lin Qiu, Xiaolong Liu, Lijuan Ling, Ninglei Li, Kun Zhou, Jingbo Sun, Jian Yan, Canliang Tan, Xiaoping Huang, Luzhe Han, Liangchun Yin, Gang Xiao, Lixin Liu
Distant metastasis is the primary barrier for the successful treatment of patients with colorectal cancer, and thus, searching for new therapeutic targets by further exploring the molecular mechanisms of colorectal cancer metastasis is important. In this study, we investigated the biological and clinical significance of RASSF6 in colorectal cancer as well as the underlying molecular mechanisms. We found that low RASSF6 expression corresponds to a poor prognosis in colorectal cancer patients, and low RASSF6 expression is distinctly associated with tumour progression...
August 15, 2017: Oncotarget
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