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https://www.readbyqxmd.com/read/28103509/3-5-dihydroxy-3-4-7-trimethoxyflavone-induces-er-stress-associated-hct-116-programmed-cell-death-via-redox-signaling
#1
Mahendra Pal Singh, Jaehong Han, Sun Chul Kang
Quercetin, a well cognized bioactive flavone possessing great medicinal value, has limited usage. The rapid gastrointestinal digestion of quercetin is also a major obstacle for its clinical implementation due to low bioavailability and poor aqueous solubility. 3',5-dihydroxy-3,4',7-trimethoxyflavone (DTMF), a novel semi-synthetic derivative of quercetin, is known to modulate several biological activities. Therefore, in the present study we examined the cytotoxic mechanism of DTMF in concentration-dependent manner (25, 50, and 100μM; 24h) against HCT-116 human colon carcinoma cells...
January 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28102841/microrna-101-inhibits-invasion-and-angiogenesis-through-targeting-itga3-and-its-systemic-delivery-inhibits-lung-metastasis-in-nasopharyngeal-carcinoma
#2
Xin-Ran Tang, Xin Wen, Qing-Mei He, Ying-Qin Li, Xian-Yue Ren, Xiao-Jing Yang, Jian Zhang, Ya-Qin Wang, Jun Ma, Na Liu
Clinically, distant metastasis after primary treatment remains a key problem in nasopharyngeal carcinoma (NPC), and the treatment outcome of metastatic NPC remains disappointing, so there is a pressing need to identify novel therapeutic strategies. In accordance with our previous microarray data, we found that miR-101 was downregulated in NPC clinical specimens and cell lines. Ectopic expression of miR-101 significantly suppressed NPC cell migration, invasion and angiogenesis in vitro and inhibited angiogenesis and metastasis in vivo using the chicken chorioallantoic membrane model...
January 19, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28101576/multiple-effects-of-ellagic-acid-on-human-colorectal-carcinoma-cells-identified-by-gene-expression-profile-analysis
#3
Jinlu Zhao, Guodong Li, Wanlan Bo, Yuhui Zhou, Shuwei Dang, Jiufeng Wei, Xinglong Li, Ming Liu
Colorectal carcinoma (CRC) is the third most commonly diagnosed cancer in the world. Phytochemicals have become a research hotspot in recent years as cancer prevention and treatment agents due to their low toxicity and limited side-effects. Ellagic acid (EA), a natural phenolic constituent, displays various biological activities, including anticancer effects. However, the detailed anticancer mechanisms of EA remain unclear. In the present study, we found that EA inhibited the growth of HCT-116 colon cancer cells...
February 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28100999/colorectal-cancer-associated-with-streptococcus-anginosus-bacteremia-and-liver-abscesses
#4
Umair Masood, Anuj Sharma, Dhruv Lowe, Rashad Khan, Divey Manocha
Streptococcus anginosus is part of the normal flora of the human gastrointestinal tract. Their ability to cause abscesses is very unique and sets them apart from the rest of the streptococci groups. While an association of group D streptococcus bacteremia and endocarditis with colorectal carcinoma is well established, S. anginosus infections are rarely implicated with colonic malignancy. We present a case of a 62-year-old male who presented to the hospital with fatigue and generalized abdominal pain. Computed tomography of the abdomen revealed multiple liver abscesses and rectal thickening...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/28100947/solitary-splenic-metastasis-from-a-mucinous-adenocarcinoma-of-the-cecum-a-case-report
#5
Maximiliano Lo Tartaro, Miguel A Cardona, Maria S Serrano, Mario Cantin, Nicolas Ernesto Ottone
Reports of cases of splenic metastasis are very rare, even more so when they are derived from a mucinous adenocarcinoma of the cecum. The most common presentation of a solitary splenic metastasis is from lung primary tumors, endometrium, ovary, cervix, stomach, colon, breast, bladder, and skin. We report the case of an 84-year-old woman with a solitary splenic metastasis from a mucinous adenocarcinoma of the cecum. Until this work, only 18 cases of solitary splenic metastases from colorectal carcinomas have been described in the literature...
December 2016: Indian Journal of Surgery
https://www.readbyqxmd.com/read/28099909/pathway-of-peritoneal-carcinomatosis-maybe-hematogenous-metastasis-rather-than-peritoneal-seeding
#6
Wei Ge, Gang Chen, Xiang-Shan Fan
GOALS: This study aimed to summarize the clinicopathological data of the cases of gastric cancer or colon cancer with regular metastasis in the mesentery of small intestine and explore the pathway of peritoneal carcinomatosis. MATERIALS AND METHODS: We retrospectively analyzed 5 cases of gastric cancer and 3 cases of colon cancer with regular metastasis in the mesentery of the small intestine from January 2014 to June 2016, including clinical information, gross manifestations during operation, treatment, and pathology...
January 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28099523/the-role-of-liquid-based-cytology-and-ancillary-techniques-in-the-peritoneal-washing-analysis-our-institutional-experience
#7
Esther Rossi, Tommaso Bizzarro, Maurizio Martini, Adhemar Longatto-Filho, Fernando Schmitt, Anna Fagotti, Giovanni Scambia, Gian Franco Zannoni
BACKGROUND: The cytological analysis of peritoneal effusions serves as a diagnostic and prognostic aid for either primary or metastatic diseases. Among the different cytological preparations, liquid based cytology (LBC) represents a feasible and reliable method ensuring also the application of ancillary techniques (i.e immunocytochemistry-ICC and molecular testing). METHODS: We recorded 10348 LBC peritoneal effusions between January 2000 and December 2014. They were classified as non-diagnostic (ND), negative for malignancy-NM, atypical-suspicious for malignancy-SM and positive for malignancy-PM...
2017: PloS One
https://www.readbyqxmd.com/read/28096693/gastric-and-colon-metastasis-from-breast-cancer-case-report-review-of-the-literature-and-possible-underlying-mechanisms
#8
J Carlos Villa Guzmán, J Espinosa, R Cervera, M Delgado, R Patón, J M Cordero García
Gastrointestinal metastases from breast cancer are not common. We present a 58-year-old female diagnosed with lobular breast cancer some years before whose relapses were gastric and colonic mucosal. Simultaneous metastases are extremely rare. To our knowledge, no cases of initial dual affectation have been reported. The patient also showed gastritis by Helicobacter pylori. Invasive lobular breast carcinoma is the most frequent special type of breast cancer and carries some specific molecular alterations such as loss of expression of E-cadherin...
2017: Breast Cancer: Targets and Therapy
https://www.readbyqxmd.com/read/28094898/polyelectrolyte-oil-core-nanocarriers-for-localized-and-sustained-delivery-of-daunorubicin-to-colon-carcinoma-mc38-cells-the-case-of-polysaccharide-multilayer-film-in-relation-to-peg-ylated-shell
#9
Urszula Bazylińska, Jadwiga Pietkiewicz, Joanna Rossowska, Grzegorz Chodaczek, Andrzej Gamian, Kazimiera A Wilk
The authors examine properties of daunorubicin (DNR)-loaded oil-core multilayer nanocapsules prepared via layer-by-layer approach with different polyelectrolyte (PE) coatings such as a standard one (containing polysodium 4-styrenesulphonate/poly(diallyldimethyl-ammonium) chloride) and a polysaccharide-based shell (dextran/chitosan), in regard to the outer layer of poly-l-glutamic acid (PGA) grafted with polyethylene glycol (PGA-g-PEG). The nanocarriers are obtained on a cationic nanoemulsion template (stabilized by dicephalic-type surfactant, N,N-bis[3,30-(trimethylammonio)propyl]-dodecanamide dimethylsulfate) and layered with the PE shell of different thicknesses resulting in average size of 150 nm in diameter (as shown by dynamic light scattering, scanning electron microscopy and cryogenic-transmission electron microscopy, and atomic force microscopy)...
January 17, 2017: Macromolecular Bioscience
https://www.readbyqxmd.com/read/28094771/orphan-gpr182-suppresses-erk-mediated-intestinal-proliferation-during-regeneration-and-adenoma-formation
#10
Daniel O Kechele, R Eric Blue, Bailey Zwarycz, Scott T Espenschied, Amanda T Mah, Marni B Siegel, Charles M Perou, Shengli Ding, Scott T Magness, P Kay Lund, Kathleen M Caron
Orphan GPCRs provide an opportunity to identify potential pharmacological targets, yet their expression patterns and physiological functions remain challenging to elucidate. Here, we have used a genetically engineered knockin reporter mouse to map the expression pattern of the Gpr182 during development and adulthood. We observed that Gpr182 is expressed at the crypt base throughout the small intestine, where it is enriched in crypt base columnar stem cells, one of the most active stem cell populations in the body...
January 17, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28094304/the-different-expression-of-trpm7-and-magt1-impacts-on-the-proliferation-of-colon-carcinoma-cells-sensitive-or-resistant-to-doxorubicin
#11
Alessandra Cazzaniga, Claudia Moscheni, Valentina Trapani, Federica I Wolf, Giovanna Farruggia, Azzurra Sargenti, Stefano Iotti, Jeanette A M Maier, Sara Castiglioni
The processes leading to anticancer drug resistance are not completely unraveled. To get insights into the underlying mechanisms, we compared colon carcinoma cells sensitive to doxorubicin with their resistant counterpart. We found that resistant cells are growth retarded, and show staminal and ultrastructural features profoundly different from sensitive cells. The resistant phenotype is accompanied by the upregulation of the magnesium transporter MagT1 and the downregulation of the ion channel kinase TRPM7...
January 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28088238/lymph-node-pooling-a-feasible-and-efficient-method-of-lymph-node-molecular-staging-in-colorectal-carcinoma
#12
Natalia Rakislova, Carla Montironi, Iban Aldecoa, Eva Fernandez, Josep Antoni Bombi, Mireya Jimeno, Francesc Balaguer, Maria Pellise, Antoni Castells, Miriam Cuatrecasas
BACKGROUND: Pathologic lymph node staging is becoming a deficient method in the demanding molecular era. Nevertheless, the use of more sensitive molecular analysis for nodal staging is hampered by its high costs and extensive time requirements. Our aim is to take a step forward in colon cancer (CC) lymph node (LN) pathology diagnosis by proposing a feasible and efficient molecular method in routine practice using reverse transcription loop-mediated isothermal amplification (RT-LAMP). RESULTS: Molecular detection of tumor cytokeratin 19 (CK19) mRNA with RT-LAMP was performed in 3206 LNs from 188 CC patients using two methods: individual analysis of 1449 LNs from 102 patients (individual cohort), and pooled LN analysis of 1757 LNs from 86 patients (pooling cohort)...
January 14, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28081587/clinical-significance-and-predictive-factors-of-early-massive-recurrence-after-radiofrequency-ablation-in-patients-with-a-single-small-hepatocellular-carcinoma
#13
Ju-Yeon Cho, Moon Seok Choi, Gil Sun Lee, Won Sohn, Jemma Ahn, Dong-Hyun Sinn, Geum-Youn Gwak, Yong-Han Paik, Joon Hyeok Lee, Kwang Cheol Koh, Seung Woon Paik
BACKGROUND/AIMS: Radiofrequency ablation (RFA) is one of the most frequently applied curative treatments in patients with a single small hepatocellular carcinoma (HCC). However, the clinical significance of and risk factors for early massive recurrence after RFA-a dreadful event limiting further curative treatment-have not been fully evaluated. METHODS: In total, 438 patients with a single HCC of size ≤3 cm who underwent percutaneous RFA as an initial treatment between 2006 and 2009 were included...
December 2016: Clinical and Molecular Hepatology
https://www.readbyqxmd.com/read/28078114/colorectal-cancer-anatomic-distribution-patterns-remain-the-same-after-sessile-serrated-adenoma-polyp-considered-cancer-precursor-a-9-year-comparison-study-from-community-based-endoscopy-centers
#14
Juliana F Yang, Amy E Noffsinger, Deepak Agrawal, Qing-Hua Yang
BACKGROUND: The overall incidence of colorectal cancer (CRC) in the United States has steadily decreased. However, the incidence of right-sided CRC remains unchanged for the past two decades. The serrated neoplastic pathway (sessile serrated adenoma/polyp, SSA/P) has been considered an important pathway of colorectal carcinogenesis, especially in the right-sided CRC. The aim of this study was to compare CRC anatomic distribution patterns in a 9-year interval in the general population before and after SSA/P was recognized and treated as a CRC precursor...
December 2016: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28075415/inhibitory-effects-of-probiotic-lactobacillus-on-the-growth-of-human-colonic-carcinoma-cell-line-ht-29
#15
Zhung-Yuan Chen, You-Miin Hsieh, Chun-Chih Huang, Cheng-Chih Tsai
This study was conducted to investigate the inhibitory effect of Lactobacillus cells and supernatants on the growth of the human colon cancer cell line HT-29. Our study results indicated that the PM153 strain exhibits the best adhesion ability and the highest survival in the gastrointestinal tract simulation experiment. Furthermore, after an 8-h co-culture of PM153 and HT-29 cells, the PM153 strain can induce the secretion of nitric oxide from the HT-29 cells. In addition, after the co-culture of the BCRC17010 strain (10⁸ cfu/mL) and HT-29 cells, the Bax/Bcl-2 ratio in the HT-29 cells was 1...
January 10, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28073775/dasatinib-changes-immune-cell-profiles-concomitant-with-reduced-tumor-growth-in-several-murine-solid-tumor-models
#16
Can Hekim, Mette Ilander, Jun Yan, Erin Michaud, Richard Smykla, Markus Vähä-Koskela, Paula Savola, Siri Tähtinen, Leena Saikko, Akseli Hemminki, Panu E Kovanen, Kimmo Porkka, Francis Yf Lee, Satu Mustjoki
Dasatinib, a broad range tyrosine kinase inhibitor (TKI), induces rapid mobilization of lymphocytes and clonal expansion of cytotoxic cells in leukemia patients. Here, we investigated whether dasatinib could induce beneficial immunomodulatory effects in solid tumor models. The effects on tumor growth and on the immune system were studied in four different syngeneic mouse models (B16.OVA melanoma, 1956 sarcoma, MC38 colon, and 4T1 breast carcinoma). Both peripheral blood (PB) and tumor samples were immunophenotyped during treatment...
January 10, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28072391/braf-v600e-cooperates-with-cdx2-inactivation-to-promote-serrated-colorectal-tumorigenesis
#17
Naoya Sakamoto, Ying Feng, Carmine Stolfi, Yuki Kurosu, Maranne Green, Jeffry Lin, Megan Green, Kazuhiro Sentani, Wataru Yasui, Martin McMahon, Karin M Hardiman, Jason R Spence, Nobukatsu Horita, Joel K Greenson, Rork Kuick, Kathy R Cho, Eric R Fearon
While 20-30% of colorectal cancers (CRCs) may arise from precursors with serrated glands, only 8-10% of CRCs manifest serrated morphology at diagnosis. Markers for distinguishing CRCs arising from 'serrated' versus 'conventional adenoma' precursors are lacking. We studied 36 human serrated CRCs and found CDX2 loss or BRAF mutations in ~60% of cases and often together (p= .04). CDX2(Null)/BRAF(V600E) expression in adult mouse intestinal epithelium led to serrated morphology tumors (including carcinomas) and BRAF(V600E) potently interacted with CDX2 silencing to alter gene expression...
January 10, 2017: ELife
https://www.readbyqxmd.com/read/28071820/response-profiling-using-shotgun-proteomics-enables-global-metallodrug-mechanisms-of-action-to-be-established
#18
Dominique Kreutz, Andrea Bileck, Kerstin Plessl, Denise Wolrab, Michael Groessl, Bernhard K Keppler, Samuel M Meier, Christopher Gerner
Response profiling using shotgun proteomics for establishing global metallodrug mechanisms of action in two colon carcinoma cell lines, HCT116 and SW480, has been applied and evaluated with the clinically approved arsenic trioxide. Surprisingly, the complete established mechanism of action of arsenic trioxide was observed by protein regulations in SW480, but not HCT116 cells. Comparing the basal protein expression in the two cell lines revealed an 80 % convergence of protein identification, but with significant expression differences, which in turn seem to affect the extent of protein regulation...
November 7, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28070880/on-the-molecular-basis-underlying-the-metabolism-of-tapentadol-through-sulfation
#19
Ahsan F Bairam, Mohammed I Rasool, Katsuhisa Kurogi, Ming-Cheh Liu
BACKGROUND AND OBJECTIVES: Previous studies reported that tapentadol-sulfate represented one of the major metabolites of tapentadol excreted in urine. The current study aimed to identify the human cytosolic sulfotransferases (SULTs) that is(are) capable of sulfating tapentadol and to examine whether human cells and human organ specimens are capable of sulfating tapentadol. METHODS: Thirteen human SULTs, previously expressed and purified, as well as human organ cytosols, were analyzed for tapentadol-sulfating activity using an established sulfotransferase assay...
January 10, 2017: European Journal of Drug Metabolism and Pharmacokinetics
https://www.readbyqxmd.com/read/28068625/loss-of-periplakin-expression-is-associated-with-the-tumorigenesis-of-colorectal-carcinoma
#20
Xiang Li, Guohui Zhang, Yan Wang, Ahmed Elgehama, Yang Sun, Lele Li, Yanhong Gu, Wenjie Guo, Qiang Xu
Periplakin (PPL), a member of the plakin protein family, has been reported to be down-expressed in urothelial carcinoma. The role of PPL in human colorectal cancer, however, remains largely unknown. Also little is known about the contribution of PPL to the malignant property of colorectal cancer and the intracellular function of PPL. In this study, we demonstrated that PPL was apparently down-expressed in colon carcinomas compared with normal and para-carcinoma tissues, which was correlated with the tumor size...
January 6, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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