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https://www.readbyqxmd.com/read/28551635/enhanced-susceptibility-to-5-fluorouracil-in-human-colon-cancer-cells-by-silencing-of-grp78
#1
Seungpil Yun, Yong-Seok Han, Jun Hee Lee, Sangmin Kim, Sang Hun Lee
BACKGROUND: Glucose-regulated protein (GRP78), also known as immunoglobulin heavy chain binding protein and as heat shock 70 kDa protein 5, is present in the endoplasmic reticulum (ER) membrane. GRP78 is generally expressed at low concentrations, but is increased by physiological stress. GRP78 is thought to protect against tissue or organ damage under pathological conditions, such as neurotoxic stress, myocardial infarction, or arteriosclerosis. In addition, in tumors, GRP78 expression is much higher than in normal tissues...
June 2017: Anticancer Research
https://www.readbyqxmd.com/read/28551626/lipoic-acid-decreases-the-viability-of-breast-cancer-cells-and-activity-of-ptp1b-and-shp2
#2
Alicja Kuban-Jankowska, Magdalena Gorska-Ponikowska, Michal Wozniak
BACKGROUND: Protein tyrosine phosphatases PTP1B and SHP2 are potential targets for anticancer therapy, because of the essential role they play in the development of tumors. PTP1B and SHP2 are overexpressed in breast cancer cells, thus inhibition of their activity can be potentially effective in breast cancer therapy. Lipoic acid has been previously reported to inhibit the proliferation of colon, breast and thyroid cancer cells. MATERIALS AND METHODS: We investigated the effect of alpha-lipoic acid (ALA) and its reduced form of dihydrolipoic acid (DHLA) on the viability of MCF-7 cancer cells and on the enzymatic activity of PTP1B and SHP2 phosphatases...
June 2017: Anticancer Research
https://www.readbyqxmd.com/read/28550801/the-nk-1-receptor-antagonist-l-732-138-induces-apoptosis-in-human-gastrointestinal-cancer-cell-lines
#3
Miguel Muñoz, Marisa Rosso, Rafael Coveñas
BACKGROUND: Gastric and colon cancer cells express the neurokinin-1 receptor (NK-1R) and the peptide substance P (SP), after binding to this receptor, elicits the proliferation of gastrointestinal cancer cells and an antiapoptotic effect. In these cells, NK-1R antagonists (L-733,060: a piperidine derivative; aprepitant: a morpholine derivative) block, after binding to the NK-1R, the action of SP and exert an antiproliferative action, both antagonists promote apoptosis and the death of cancer cells...
February 12, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28550684/long-noncoding-rna-ccat2-knockdown-suppresses-tumorous-progression-by-sponging-mir-424-in-epithelial-ovarian-vancer
#4
Fu Hua, Chang-Hua Li, Xiao-Gang Chen, Xiao-Ping Liu
Epithelial ovarian cancer (EOC) is the one of most common gynecological malignant tumor with highest mortality, meanwhile, series of lncRNAs have been validated to play vital role in EOC tumorigenesis. Colon cancer-associated transcript 2 (CCAT2) has been verified as oncogenic lncRNA in multiple tumors, however, the role of CCAT2 in EOC genesis is still unclear. The purpose of present study is to probe the function of CCAT2 on EOC. Preliminary experiments found that CCAT2 expression was significantly up-regulated in EOC tissue and cell lines compared to noncancerous tissue and cells...
May 21, 2017: Oncology Research
https://www.readbyqxmd.com/read/28549913/microrna-186-5p-overexpression-modulates-colon-cancer-growth-by-repressing-the-expression-of-the-fam134b-tumour-inhibitor
#5
Farhadul Islam, Vinod Gopalan, Jelena Vider, Riajul Wahab, Faeza Ebrahimi, Cu-Tai Lu, Kais Kasem, Alfred K Y Lam
OBJECTIVES: The role and underlying mechanism of miR-186-5p in colorectal cancer remain unknown. The present study aims to examine the various cellular effects of miR-186-5p in the carcinogenesis of colorectal cancer. Also, the interacting targets and association of clinicopathological factors with miR-186-5p expression in patients with colorectal cancer were analysed. METHODS: The miR-186-5p expression levels in colorectal cancer tissues (n=126) and colon cancer cell lines (n=3) were analysed by real-time PCR...
May 23, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28549801/methanolic-extract-of-boswellia-serrata-exhibits-anti-cancer-activities-by-targeting-microsomal-prostaglandin-e-synthase-1-in-human-colon-cancer-cells
#6
Tayebe Ranjbarnejad, Massoud Saidijam, Shirin Moradkhani, Rezvan Najafi
BACKGROUND: Colorectal cancer (CRC) is the most common cancer. A proper method to reduce mortality of CRC is chemoprevention to prevent initiation and promotion of intestinal tumorgenesis. One of the promising and developing chemopreventive agents is natural compounds found in plants. Frankincense, the resin extract from the Boswellia specious, has been used in traditional and modern medicine for treating various diseases with very minimal side effects. In the current study, we investigated the anti-cancer activity of methanolic extract of Boswellia serrata (B...
May 23, 2017: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/28549790/the-inhibitor-of-differentiation-1-id-1-enables-lung-cancer-liver-colonization-through-activation-of-an-emt-program-in-tumor-cells-and-establishment-of-the-pre-metastatic-niche
#7
Eduardo Castañón, Alex Soltermann, Inés López, Marta Román, Margarita Ecay, María Collantes, Miriam Redrado, Iosune Baraibar, José María López-Picazo, Christian Rolfo, Fernando Vidal-Vanaclocha, Luis Raez, Walter Weder, Alfonso Calvo, Ignacio Gil-Bazo
Id1 promotes carcinogenesis and metastasis, and predicts prognosis of non-small cell lung cancer (NSCLC)-adenocarcionoma patients. We hypothesized that Id1 may play a critical role in lung cancer colonization of the liver by affecting both tumor cells and the microenvironment. Depleted levels of Id1 in LLC (Lewis lung carcinoma cells, LLC shId1) significantly reduced cell proliferation and migration in vitro. Genetic loss of Id1 in the host tissue (Id1(-/-) mice) impaired liver colonization and increased survival of Id1(-/-) animals...
May 23, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28549732/metachronous-colon-polyps-in-younger-versus-older-adults-a-case-control-study
#8
Sajan Jiv Singh Nagpal, Dhruvika Mukhija, Madhusudhan Sanaka, Rocio Lopez, Carol A Burke
BACKGROUND AND AIMS: The incidence of colorectal cancer (CRC) in the United States has decreased substantially in individuals aged 50 and older. Contrariwise, it is increasing in young adults. The polyp characteristics on baseline and follow-up colonoscopy in young adults are not well characterized. We describe the polyp characteristics on baseline and follow-up colonoscopy in adults < 40 years and determined factors associated with the occurrence of metachronous, advanced neoplasia or high risk (HR) polyp features...
May 23, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28549468/microrna-608-inhibits-proliferation-of-bladder-cancer-via-akt-foxo3a-signaling-pathway
#9
Zhen Liang, Xiao Wang, Xin Xu, Bo Xie, Alin Ji, Shuai Meng, Shiqi Li, Yi Zhu, Jian Wu, Zhenghui Hu, Yiwei Lin, Xiangyi Zheng, Liping Xie, Ben Liu
BACKGROUND: Current evidence indicates that miR-608 is widely down-regulated in various malignant tumors including liver cancer, colon cancer, lung cancer and glioma, and acts as a tumor suppressor by inhibiting cell proliferation, invasion and migration or by promoting apoptosis. The specific biological function of miR-608 in bladder cancer is still unknown. METHODS: qRT-PCR and Chromogenic in Situ Hybridization (CISH) was conducted to assess the expression of miR-608 in paired BCa tissues and adjacent non-tumor bladder urothelial tissues...
May 26, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28549410/large-scale-tissue-histopathology-image-classification-segmentation-and-visualization-via-deep-convolutional-activation-features
#10
Yan Xu, Zhipeng Jia, Liang-Bo Wang, Yuqing Ai, Fang Zhang, Maode Lai, Eric I-Chao Chang
BACKGROUND: Histopathology image analysis is a gold standard for cancer recognition and diagnosis. Automatic analysis of histopathology images can help pathologists diagnose tumor and cancer subtypes, alleviating the workload of pathologists. There are two basic types of tasks in digital histopathology image analysis: image classification and image segmentation. Typical problems with histopathology images that hamper automatic analysis include complex clinical representations, limited quantities of training images in a dataset, and the extremely large size of singular images (usually up to gigapixels)...
May 26, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28549102/long-non-coding-rna-ccat1-mir-148a-axis-promotes-osteosarcoma-proliferation-and-migration-through-regulating-pik3ip1
#11
Jingwei Zhao, Liming Cheng
Osteosarcoma is the most frequent type of malignant primary bone tumor. Although many efforts have been made, the survival rate of osteosarcoma still remains  unsatisfied. Long non-coding RNAs (lncRNAs) have been demonstrated to be associated with many diseases including tumors, and involved in the regulation of a wide array of pathophysiological processes. Colon-cancer-associated transcript-1 (CCAT1) was first identified in colon cancer and has subsequently been reported to perform many functions in tumor progression...
May 25, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28548927/the-impact-of-delayed-commencement-of-adjuvant-chemotherapy-eight-or-more-weeks-on-survival-in-stage-ii-and-iii-colon-cancer-a-national-population-based-cohort-study
#12
Young Wan Kim, Eun Hee Choi, Bo Ra Kim, Woo-Ah Ko, Yeong-Mee Do, Ik Yong Kim
BACKGROUND: To examine the impact of chemotherapy delay on survival in patients with stage II or III colon cancer and the factors associated with the delay (≥8 weeks) of adjuvant chemotherapy. METHODS: Patients undergoing curative resection and adjuvant chemotherapy in a national population-based cohort were included. RESULTS: Among 5355 patients, 154 (2.9%) received chemotherapy more than 8 weeks after surgery. Based on a multivariate analysis, the risk factors associated with chemotherapy delay ≥8 weeks were older age [65 to 74 years (hazard ratio [HR]=1...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28548905/brca-associated-cancers-role-of-imaging-in-screening-diagnosis-and-management
#13
Michelle V Lee, Venkata S Katabathina, Michyla L Bowerson, Marina I Mityul, Anup S Shetty, Khaled M Elsayes, Aparna Balachandran, Priya R Bhosale, Ann E McCullough, Christine O Menias
Harmful mutations of the BRCA tumor suppressor genes result in a greater lifetime risk for malignancy-breast and ovarian cancers in particular. An increased risk for male breast, fallopian tube, primary peritoneal, pancreatic, prostate, and colon cancers also has been reported. The BRCA gene is inherited in an autosomal dominant pattern and tends to be highly penetrant; thus, there is an increased incidence of these cancers in affected families. Compared with sporadic tumors, BRCA-associated malignancies have unique manifestations, clinical features, and pathologic profiles...
May 26, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28548388/epithelial-mesenchymal-plasticity-how-have-quantitative-mathematical-models-helped-improve-our-understanding
#14
REVIEW
Mohit Kumar Jolly, Satyendra C Tripathi, Jason A Somarelli, Samir M Hanash, Herbert Levine
Phenotypic plasticity, the ability of cells to reversibly alter their phenotypes in response to signals, presents a significant clinical challenge to treating solid tumors. Tumor cells utilize phenotypic plasticity to evade therapies, metastasize, and colonize distant organs. As a result, phenotypic plasticity can accelerate tumor progression. A well-studied example of phenotypic plasticity is the bidirectional conversions among epithelial, mesenchymal, and hybrid epithelial/mesenchymal phenotype(s). These conversions can alter a repertoire of cellular traits associated with multiple hallmarks of cancer, such as metabolism, immune-evasion, invasion and metastasis...
May 26, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28547933/hybrid-approach-using-laparoscopy-and-transanal-minimally-invasive-surgery-to-treat-rectal-cancer-with-invasion-to-the-seminal-vesicles
#15
Takuya Yamaguchi, Minoru Imai, Dai Uematsu
We treated a 64-year-old man for rectal cancer with direct invasion to the seminal vesicles and no distant metastases by complete resection with laparoscopy and transanal minimally invasive surgery (TAMIS). We inserted the TAMIS device into the anal canal to above the anorectal ring and dissected to prostate level. High ligation of the inferior mesenteric artery and vein was performed by standard medial laparoscopy. The sigmoid and descending colon were mobilized, and in the postrectal space, we dissected to the space made by TAMIS...
May 2017: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/28546954/pleiotropic-cytotoxicity-of-vaca-toxin-in-host-cells-and-its-impact-on-immunotherapy
#16
REVIEW
Farnaz Fahimi, Mohammad Reza Tohidkia, Mehdi Fouladi, Reza Aghabeygi, Naser Samadi, Yadollah Omidi
Introduction: In the recent decades, a number of studies have highlighted the importance of Helicobacter pylori in the initiation and development of peptic ulcer and gastric cancer. Some potential virulence factors (e.g., urease, CagA, VacA, BabA) are exploited by this microorganism, facilitating its persistence through evading human defense mechanisms. Among these toxins and enzymes, vacuolating toxin A (VacA) is of a great importance in the pathogenesis of H. pylori. VacA toxin shows different pattern of cytotoxicity through binding to different cell surface receptors in various cells...
2017: BioImpacts: BI
https://www.readbyqxmd.com/read/28546700/advanced-primary-epithelial-ovarian-and-peritoneal-carcinoma-does-diagnostic-accuracy-of-preoperative-ct-scan-for-detection-of-peritoneal-metastatic-sites-reflect-into-prediction-of-suboptimal-debulking-a-prospective-study
#17
Kiran Bagul, D K Vijaykumar, Anupama Rajanbabu, Mitchelle Aline Antony, Venkatesan Ranganathan
Ovarian cancer is the seventh most common cancer in females worldwide. Optimal debulking is the standard treatment but possible only in 30-85% of advanced stages. Knowing exactly the disease extent preoperatively may predict suboptimal debulking. We analyzed diagnostic accuracy of preoperative CT scan in disease mapping and prediction of suboptimal debulking in a prospective observational study from March 2013 to May 2015 in a tertiary hospital. Adults below the age of 75 years with ECOG PS-0, 1, 2, clinically/radiologically newly diagnosed stage IIIc epithelial ovarian (EOC), and primary peritoneal carcinoma (PPC) were included...
June 2017: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28546516/re-evaluating-the-role-of-epithelial-mesenchymal-transition-in-cancer-progression
#18
Andrew Sulaiman, Zemin Yao, Lisheng Wang
Epithelial-mesenchymal transition (EMT) and mesenchymal-epithelial transition (MET) are essential for embryonic development and also important in cancer progression. In a conventional model, epithelial-like cancer cells transit to mesenchymal-like tumor cells with great motility via EMT transcription factors; these mesenchymal-like cells migrate through the circulation system, relocate to a suitable site and then convert back to an epithelial-like phenotype to regenerate the tumor. However, recent findings challenge this conventional model and support the existence of a stable hybrid epithelial/mesenchymal (E/M) tumor population...
April 6, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28546515/the-interaction-between-the-wnt-%C3%AE-catenin-signaling-cascade-and-pkg-activation-in-cancer
#19
Kevin Lee, Gary A Piazza
The activation of the Wnt/β-catenin signaling cascade has been well studied and documented in colorectal cancer (CRC). The long-term use of non-steroidal anti-inflammatory drugs (NSAIDs) has been shown to reduce the incidence and risk of death from CRC in numerous epidemiological studies. The NSAID sulindac has also been reported to cause regression of precancerous adenomas in individuals with familial adenomatous polyposis who are at high risk of developing CRC. The mechanism responsible for cancer chemopreventive activity of NSAIDs is not well understood but may be unrelated to their cyclooxygenase inhibitory activity...
April 6, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/28545905/resveratrol-alleviates-oxidative-damage-in-enteric-neurons-and-associated-gastrointestinal-dysfunction-caused-by-chemotherapeutic-agent-oxaliplatin
#20
Elizabeth L Donald, Lily Stojanovska, Vasso Apostolopoulos, Kulmira Nurgali
Oxaliplatin is a first-line chemotherapeutic agent used for the treatment of colorectal cancer. Its use is associated with severe gastrointestinal (GI) side-effects, associated with oxidative damage and neurotoxicity to the enteric neurons. Resveratrol is a potent anti-oxidant that has been shown to protect against oxidative damage and neurotoxicity in other neurons and could therefore prevent oxaliplatin-induced damage to enteric neurons. We determined whether co-administration of resveratrol with oxaliplatin alleviates enteric neuron toxicity and GI dysfunction in mice...
May 17, 2017: Maturitas
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