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https://www.readbyqxmd.com/read/30025343/design-and-synthesis-of-novel-imidazo-4-5-b-pyridine-based-compounds-as-potent-anticancer-agents-with-cdk9-inhibitory-activity
#1
Nada M Ghanem, Faten Farouk, Riham F George, Safinaz E S Abbas, Ossama M El-Badry
New imidazo[4,5-b]pyridine derivatives were designed, synthesized and screened for their anticancer activity against breast (MCF-7) and colon (HCT116) cancer cell lines. Nine compounds (I, II, IIIa, IIIb, IV, VI, VIIa, VIII, IX) showed significant activity against MCF-7, while six compounds (I, VIIc, VIIe, VIIf, VIII, IX) elicited a remarkable activity against HCT116. Compounds showing significant anticancer activity revealed remarkable CDK9 inhibitory potential (IC50  = 0.63-1.32 μM) relative to sorafenib (IC50  = 0...
July 6, 2018: Bioorganic Chemistry
https://www.readbyqxmd.com/read/30024911/diagnostic-algorithm-for-determining-primary-tumor-sites-using-peritoneal-fluid
#2
Cheol Keun Park, Douglas P Malinowski, Nam Hoon Cho
This study was conducted to develop a novel algorithm for determining the origin of tumors by combining analysis of cluster patterns with immunocytochemistry (ICC) for markers in cells from fine-needle aspirates of ascites. We used LBC, based on SurePathTM (BD Diagnostics) technology, to screen 96 peritoneal fluid samples from patients with known malignancies and from 10 control patients with cirrhosis. Following dual ICC staining for cytokeratin 7 (CK7) and paired box gene 8 (PAX8), we developed an algorithm using immunoreactivity and three-dimensional (3D) cluster patterns to correlate staining and 3D cluster patterns with common primary origins that included stomach, ovarian, pancreatobiliary tract, colon, lung, and breast cancers...
2018: PloS One
https://www.readbyqxmd.com/read/30024889/associations-of-artificially-sweetened-beverage-intake-with-disease-recurrence-and-mortality-in-stage-iii-colon-cancer-results-from-calgb-89803-alliance
#3
Brendan J Guercio, Sui Zhang, Donna Niedzwiecki, Yanping Li, Ana Babic, Vicente Morales-Oyarvide, Leonard B Saltz, Robert J Mayer, Rex B Mowat, Renaud Whittom, Alexander Hantel, Al Benson, Daniel Atienza, Michael Messino, Hedy Kindler, Alan Venook, Shuji Ogino, Emilie S Zoltick, Meir Stampfer, Kimmie Ng, Kana Wu, Walter C Willett, Edward L Giovannucci, Jeffrey A Meyerhardt, Charles S Fuchs
PURPOSE: Observational studies have demonstrated increased colon cancer recurrence and mortality in states of excess energy balance, as denoted by factors including sedentary lifestyle, diabetes, increased dietary glycemic load, and increased intake of sugar-sweetened beverages. Nonetheless, the relation between artificially sweetened beverages, a popular alternative for sugar-sweetened beverages, and colon cancer recurrence and survival is unknown. METHODS: We analyzed data from 1,018 patients with stage III colon cancer who prospectively reported dietary intake during and after chemotherapy while enrolled in a National Cancer Institute-sponsored trial of adjuvant chemotherapy...
2018: PloS One
https://www.readbyqxmd.com/read/30023985/laparoscopic-surgical-transmesocolic-jejunostomy-a-new-surgical-approach
#4
Alberto Pagan, Alessandro Bianchi, José Antonio Martínez, Marina Jiménez, Francisco Javier Gonzalez
In cancer patients with tumors of the upper gastrointestinal tract, dysphagia and cachexia require gastrostomy or jejunostomy as the only options for enteral access for long-term feeding. In this article, the authors describe a modified placement of laparoscopic feeding jejunostomy applied during laparoscopic oncology layering technique. After performing an exploratory laparoscopy, a feeding jejunostomy is performed using a Foley silicon catheter, through an eyelet in the mesentery of the descending colon. After completing the introduction of the jejunal probe according to the Witzel technique, the intestinal segment of jejunum is attached to the internal sheath of the mesocolon using sutures polysorb 2/0, with the aim of removing the possible internal hernia and a jejunal torque that could cause an intestinal obstruction...
2018: Turkish Journal of Surgery
https://www.readbyqxmd.com/read/30023976/approach-to-the-diagnosis-and-treatment-of-mesenteric-panniculitis-from-the-surgical-point-of-view
#5
Cemal Kaya, Emre Bozkurt, Pınar Yazıcı, Ufuk Oğuz İdiz, Mert Tanal, Mehmet Mihmanlı
Objective: To evaluate the diagnostic and treatment approaches for patients diagnosed with mesenteric panniculitis. Material and Methods: We retrospectively reviewed all patients diagnosed with mesenteric panniculitis between January 2010 and March 2016. We recorded the demographic features, clinical symptoms, laboratory values, radiological methods, treatment approach, and outcomes of the patients. Results: We evaluated 22 patients (17 male and five female) with a mean age of 45...
2018: Turkish Journal of Surgery
https://www.readbyqxmd.com/read/30023921/in-vitro-carcinoma-treatment-using-magnetic-nanocarriers-under-ultrasound-and-magnetic-fields
#6
Somoshree Sengupta, Chandra Khatua, Vamsi K Balla
Nowadays, tumor hypoxia has become a more predominant problem for diagnosis as well as treatment of cancer due to difficulties in delivering chemotherapeutic drugs and their carriers to these regions with reduced vasculature and oxygen supply. In such cases, external physical stimulus-mediated drug delivery, such as ultrasound and magnetic fields, would be effective. In this work, the effect of simultaneous exposure of low-intensity pulsed ultrasound and static magnetic field on colon (HCT116) and hepatocellular (HepG2) carcinoma cell inhibition was assessed in vitro...
May 31, 2018: ACS Omega
https://www.readbyqxmd.com/read/30023806/impairing-powerhouse-in-colon-cancer-cells-by-hydrazide-hydrazone-based-small-molecule
#7
Sohan Patil, Meenu Mahesh Kuman, Sandeep Palvai, Poulomi Sengupta, Sudipta Basu
Mitochondrion has emerged as one of the unconventional targets in next-generation cancer therapy. Hence, small molecules targeting mitochondria in cancer cells have immense potential in the next-generation anticancer therapeutics. In this report, we have synthesized a library of hydrazide-hydrazone-based small molecules and identified a novel compound that induces mitochondrial outer membrane permeabilization by inhibiting antiapoptotic B-cell CLL/lymphoma 2 (Bcl-2) family proteins followed by sequestration of proapoptotic cytochrome c ...
February 28, 2018: ACS Omega
https://www.readbyqxmd.com/read/30023799/mechanistic-insight-into-size-dependent-enhanced-cytotoxicity-of-industrial-antibacterial-titanium-oxide-nanoparticles-on-colon-cells-because-of-reactive-oxygen-species-quenching-and-neutral-lipid-alteration
#8
Suresh K Verma, Ealisha Jha, Pritam Kumar Panda, Arun Thirumurugan, S K S Parashar, Shubhransu Patro, Mrutyunjay Suar
This study evaluates the impact of industrially prepared TiO2 nanoparticles on the biological system by using an in vitro model of colon cancer cell lines (HCT116). Industrial synthesis of titanium oxide nanoparticles was mimicked on the lab scale by the high-energy ball milling method by milling bulk titanium oxide particles for 5, 10, and 15 h in an ambient environment. The physiochemical characterization by field emission scanning electron microscopy, dynamic light scattering, and UV-visible spectroscopy revealed alteration in the size and surface charge with respect to increase in the milling time...
January 31, 2018: ACS Omega
https://www.readbyqxmd.com/read/30023790/facile-and-green-synthesis-of-multicolor-fluorescence-carbon-dots-from-curcumin-in-vitro-and-in-vivo-bioimaging-and-other-applications
#9
Tathagata Pal, Shanid Mohiyuddin, Gopinath Packirisamy
Early detection is the critical phase in the prognostic strategy of various life-threatening maladies like infectious diseases and cancer. The mortality rate caused by these diseases could be considerably reduced if they were diagnosed in the early stages of disease development. Carbon dots (C-dots), a relatively new and promising candidate in the fluorescent nanomaterial category, possess a perceptible impact on various bioapplications. Herein, we report a one-step facile hydrothermal synthesis that yields a novel surface-passivated carbon dot (CDP) from curcumin (as a green substrate) displaying high aqueous solubility...
January 31, 2018: ACS Omega
https://www.readbyqxmd.com/read/30023564/hyaluronic-acid-layered-chimeric-nanoparticles-targeting-mapk-pi3k-signaling-hub-in-colon-cancer-cells
#10
Sandeep Palvai, Meenu Mahesh Kuman, Poulomi Sengupta, Sudipta Basu
Colon cancer has emerged as one of the most devastating diseases in the whole world. Mitogen-activated protein kinase (MAPK)-phosphatidylinsitol-3-kinase (PI3K) signaling hub has gained lots of attention due to its deregulation in colon cancer cells. However, selective targeting of oncogenic MAPK-PI3K hub in colon cancer has remained highly challenging, hence it has mostly been unexplored. To address this, we have engineered a hyaluronic acid layered lipid-based chimeric nanoparticle (HA-CNP) consisting of AZD6244 (MAPK inhibitor), PI103 (PI3K inhibitor), and cisplatin (DNA impairing drug) ratiometrically in a single particle...
November 30, 2017: ACS Omega
https://www.readbyqxmd.com/read/30023325/phytochemical-synthesis-of-silver-nanoparticles-by-two-techniques-using-saturaja-rechengri-jamzad-extract-identifying-and-comparing-in-vitro-anti-proliferative-activities
#11
Fataneh Narchin, Kambiz Larijani, Abdolhossein Rustaiyan, Samad Nejad Ebrahimi, Farzaneh Tafvizi
Purpose: A lot of plants are available which can produce nanoparticles used in medicine, life sciences, and the pharmaceutical industry. The present study aims to introduce safe biological and eco-friendly methods for synthesizing silver nanoparticles (AgNPs) by using Saturaja rechengri Jamzad extract, which can replace traditional chemical methods. In addition, the chemical nature and antimicrobial activities were identified and accordingly the anticancer effects of AgNPs was successfully reported on colon cancer cells (HT-29)...
June 2018: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/30023072/lifestyle-factors-and-risk-for-colorectal-polyps-and-cancer-at-index-colonoscopy-in-a-fit-positive-screening-population
#12
Dora Colussi, Margherita Fabbri, Rocco Maurizio Zagari, Amedeo Montale, Franco Bazzoli, Luigi Ricciardiello
Background: Many countries have adopted the fecal immunochemical test (FIT) as the primary colorectal cancer (CRC) screening tool; however, its accuracy is limited. Epidemiological studies have shown that obesity and type 2 diabetes increase risk for the disease. Objective: The objective of this article is to evaluate the association of colorectal polyps and cancer with comorbidities and lifestyle factors in a population that is part of a FIT-based CRC screening program...
July 2018: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/30022943/genomic-profiling-reveals-medullary-thyroid-cancer-misdiagnosed-as-lung-cancer
#13
Eva J Gordon, David Parker, Kelly Barth, Jennifer Pena, Julia A Elvin, Thomas DeLeon, Nina J Karlin
Mutations or other alterations in the RET gene have been implicated in a variety of malignancies - most commonly thyroid, but also chronic myelomonocytic leukemia, acute myeloid leukemia, and lung, breast, pancreatic, and colon cancers. Here we present a case of a gentlemen initially diagnosed with and treated for non-small cell lung adenocarcinoma. Genomic profiling of his tumor specimen revealed a RET point mutation with a known association with medullary thyroid cancer (MTC). Further pathological and molecular diagnostic evaluation confirmed a diagnosis of MTC, leading to a change in treatment from standard chemotherapy for non-small cell lung cancer to targeted therapy against RET and potential implications regarding inherited cancer risk for his offspring...
May 2018: Case Reports in Oncology
https://www.readbyqxmd.com/read/30022911/mixed-neuroendocrine-carcinoma-and-squamous-cell-carcinoma-of-the-colon-case-report-and-literature-review
#14
Shinya Munakata, Yuta Murai, Akihiro Koizumi, Hisaki Kato, Riku Yamamoto, Shuhei Ueda, Satoshi Tokuda, Shunsuke Sakuraba, Tomoyuki Kushida, Hajime Orita, Mutsumi Sakurada, Hiroshi Maekawa, Koichi Sato
Neuroendocrine carcinoma (NEC) of the colon is very rare, and squamous cell carcinoma (SCC) of colon cancer is rare. We recently treated a patient with both NEC and SCC that initially presented as multiple unresectable liver and lung metastases. A 68-year-old Japanese man was referred to our hospital because of diarrhea with descending colon cancer obstruction. He underwent a left colectomy. Based on immunohistochemistry results, we diagnosed mixed NEC and SCC, the primary lesion location of which was probably the lung in the final pathologic examination...
May 2018: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/30021725/antitumor-activity-of-tlr7-is-potentiated-by-cd200r-antibody-leading-to-changes-in-the-tumor-microenvironment
#15
Zofia Pilch, Katarzyna Tonecka, Agata Braniewska, Zuzanna Sas, Marcin Skorzynski, Louis Boon, Jakub Golab, Linde Meyaard, Tomasz P Rygiel
Stimulation of Toll-like receptor 7 (TLR7) activates myeloid cells and boosts the immune response. Previously, we have shown that stimulation of the inhibitory CD200 receptor (CD200R) suppresses TLR7 signaling and that the absence of CD200R signaling leads to a decreased number of papillomas in mice. Here, we investigated the effects of agonistic anti-CD200R on the antitumor activity of a TLR7 agonist (R848) in a syngeneic mouse tumor model. Intratumoral administration of R848 inhibited the growth of the CT26 colon carcinoma and simultaneously decreased CD200R expression in tumor-infiltrating immune cells...
July 18, 2018: Cancer Immunology Research
https://www.readbyqxmd.com/read/30021598/evaluation-of-the-correlation-of-macc1-cd44-twist1-and-kiss-1-in-the-metastasis-and-prognosis-for-colon-carcinoma
#16
Bo Zhu, Yichao Wang, Xiaolin Wang, Shiwu Wu, Lei Zhou, Xiaomeng Gong, Wenqing Song, Danna Wang
BACKGROUND: Metastasis-associated in colon cancer 1 (MACC1) has been reported to promote tumor cell invasion and metastasis. Cancer stem cells and epithelial-mesenchymal transition (EMT) have also been reported to promote tumor cell proliferation, invasion, and metastasis. KiSS-1, a known suppressor of metastasis, has been reported to be down-regulated in various tumors. However, the associations of MACC1, CD44, Twist1, and KiSS-1 in colonic adenocarcinoma (CAC) invasion and metastasis remain unclear...
July 18, 2018: Diagnostic Pathology
https://www.readbyqxmd.com/read/30021192/association-between-hypoxia-inducible-factor-2%C3%AE-hif-2%C3%AE-expression-and-colorectal-cancer-and-its-prognostic-role-a-systematic-analysis
#17
Susu Han, Tao Huang, Wen Li, Shanshan Liu, Wei Yang, Qi Shi, Hongjia Li, Jianlin Ren, Fenggang Hou
BACKGROUND/AIMS: Although some studies showed that HIF-2α expression was correlated with an unfavorable prognosis in colorectal cancer (CRC), the prognostic results remain conflicting in CRC. The present study was performed to evaluate the association between HIF-2α expression and the clinicopathological features of this disease and to examine the potential prognostic role of HIF-2α expression in CRC. METHODS: Pooled odds ratios (ORs) or hazard ratios (HRs) were calculated from available publications, The Cancer Genome Atlas (TCGA) and the Gene Expression Omnibus (GEO) datasets...
July 18, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/30020955/evidence-of-a-positive-association-between-malpractice-climate-and-thyroid-cancer-incidence-in-the-united-states
#18
Brandon Labarge, Vonn Walter, Eugene J Lengerich, Henry Crist, Dipti Karamchandani, Nicole Williams, David Goldenberg, Darrin V Bann, Joshua I Warrick
The incidence of thyroid cancer has risen dramatically in the past few decades. The cause of this is unclear, but several lines of evidence indicate it is largely due to overdiagnosis, the diagnosis of tumors that would have never manifest clinically if untreated. Practices leading to overdiagnosis may relate to defensive medicine. In this study, we evaluated the association between malpractice climate and incidence of thyroid, breast, prostate, colon, and lung cancer in U.S. states from 1999-2012 using publicly available government data...
2018: PloS One
https://www.readbyqxmd.com/read/30019937/synthesis-and-drug-efficacy-validations-of-racemic-substituted-benzimidazoles-as-antiulcer-antigastric-secretion-agents
#19
Rajesh Radhamanalan, Manikandan Alagumuthu, Narsimaiah Nagaraju
AIM: Due to their effective binding affinity to receptors which are responsible for various diseases, benzimidazoles are often bioactive. Present study intended and carried out to synthesis, characterize and develop benzimidazole-based antiulcer drugs. Materials & methods: Established 8a-l were evaluated for gastric antisecretory/antiulcer properties using freshly prepared H+ -K+ -ATPase from goat fundus mucosa. Molecular docking was carried out to unveil best binding affinities with H+ -K+ -ATPase (protein data bank ID: 2XZB)...
July 18, 2018: Future Medicinal Chemistry
https://www.readbyqxmd.com/read/30019842/antitumor-activity-of-rt2-peptide-derived-from-crocodile-leukocyte-peptide-on-human-colon-cancer-xenografts-in-nude-mice
#20
Pornsuda Maraming, Sompong Klaynongsruang, Patcharee Boonsiri, Surachai Maijaroen, Sakda Daduang, Jing-Gung Chung, Jureerut Daduang
RT2, derived from the leukocyte peptide of Crocodylus siamensis, can kill human cervical cancer cells via apoptosis induction, but no evidence has shown in vivo. In this study, we investigated the antitumor effect of RT2 on human colon cancer xenografts in nude mice. Twenty-four mice were injected subcutaneously with human colon cancer HCT 116 cells. Eleven days after cancer cell implantation, the mice were treated with intratumoral injections of phosphate buffered saline (PBS) or RT2 (0.01, 0.1, and 1 mg/mouse) once every 2 days for a total of 5 times...
July 18, 2018: Environmental Toxicology
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