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https://www.readbyqxmd.com/read/29222650/taxane-platinum-and-5-fu-prior-to-chemoradiotherapy-benefits-patients-with-stage-iv-neck-node-positive-head-and-neck-cancer-and-a-good-performance-status
#1
Natalie M Lowe, Jonathan M Bernstein, Kathleen Mais, Kate Garcez, Lip W Lee, Andrew Sykes, David J Thomson, Jarrod J Homer, Catharine M West, Nicholas J Slevin
PURPOSE: The benefit of adding docetaxel, cisplatin and 5-fluorouracil (TPF) induction chemotherapy to chemoradiotherapy (CRT) in head and neck squamous cell carcinoma (HNSCC) remains uncertain. We aimed to investigate whether ICT is well tolerated when given with prophylactic treatment against predicted adverse effects and which patients benefit most. METHODS: A single-centre audit identified 132 HNSCC patients with stage IVa/b neck node-positive disease, prescribed TPF followed by CRT...
December 8, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29221990/molecular-and-cellular-mechanisms-of-chemoresistance-in-pancreatic-cancer
#2
REVIEW
Aleksandra Adamska, Omar Elaskalani, Aikaterini Emmanouilidi, Minkyoung Kim, Norbaini Binti Abdol Razak, Pat Metharom, Marco Falasca
Pancreatic Ductal Adenocarcinoma (PDAC) is one of the most chemoresistant cancers, and current therapies targeting cancer-associated molecular pathways have not given satisfactory results, owing in part to rapid upregulation of alternative compensatory pathways. Most of the available treatments are palliative, focussing on improving the quality of life. At present, available options are surgery, embolization, radiation, chemotherapy, immunotherapy and use of other more targeted drugs. In this review, we describe the cellular and molecular effects of current chemotherapy drugs such as gemcitabine, FOLFIRINOX (5-fluorouracil [5-FU], oxaliplatin, irinotecan, and leucovorin) and ABRAXANE (nab-Paclitaxel), which have shown a survival benefit, although modest, for pancreatic cancer patients...
November 22, 2017: Advances in Biological Regulation
https://www.readbyqxmd.com/read/29220692/plag-alleviates-chemotherapy-induced-thrombocytopenia-via-promotion-of-megakaryocyte-erythrocyte-progenitor-differentiation-in-mice
#3
Ha-Reum Lee, Nina Yoo, Jinseon Jeong, Ki-Young Sohn, Sun Young Yoon, Jae Wha Kim
Previously, PLAG (1-palmitoyl-2-linoleoyl-3-acetyl-rac-glycerol, acetylated diglyceride) was reported to have an effect on the proliferation of hematopoietic stem cells (HSCs) or to contribute to the prevention of chemotherapy-induced neutropenia. In this study, we examined the role of PLAG in the differentiation of bone marrow cells from HSCs into progenitor cells in mice. After 15days, the lineage-negative cells, especially megakaryocyte/erythrocyte progenitors (MEP), were significantly increased in mice that received daily PLAG administration compared to those in the untreated mice...
October 10, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/29219177/current-status-and-future-prospective-of-curcumin-as-a-potential-therapeutic-agent-in-the-treatment-of-colorectal-cancer
#4
REVIEW
Mohammad Jalili-Nik, Arash Soltani, Soussan Moussavi, Majid Ghayour-Mobarhan, Gordon A Ferns, Seyed Mahdi Hassanian, Amir Avan
Colorectal cancer (CRC) is the third most common cause of cancer-related deaths worldwide. Hence there is a need to identify new therapeutic agents that improve the current repertoire of chemotherapeutic drugs. The antitumor activity of curcumin has been reported for several tumors, including CRC. A recent phase I trial showed that curcumin is safe and tolerable adjunct to FOLFOX (5-fluorouracil, folinic acid and oxaliplatin) chemotherapy in patient-derived colorectal liver metastases at doses up to 2 grams daily...
December 8, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29218654/mir-200c-as-a-predictive-biomarker-for-5-fluorouracil-chemosensitivity-in-colorectal-cancer
#5
EDITORIAL
Fatemeh Karimi Dermani, Rezvan Najafi
No abstract text is available yet for this article.
December 7, 2017: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/29218616/noninvasive-assessment-of-hepatic-sinusoidal-obstructive-syndrome-using-acoustic-radiation-force-impulse-elastography-imaging-a-proof-of-concept-study-in-rat-models
#6
So Hyun Park, Seung Soo Lee, Ji-Youn Sung, Kiyong Na, Hyoung Jung Kim, So Yeon Kim, Beom Jin Park, Jae Ho Byun
OBJECTIVES: To determine the feasibility of acoustic radiation force impulse (ARFI) elastography in the evaluation of hepatic sinusoidal obstruction syndrome (SOS) in rat models. METHODS: Rat SOS models of various severities were created by monocrotaline gavage (n = 40) or by intraperitoneal injection of 5-fluorouracil, leucovorin and oxaliplatin (FOLFOX) (n = 16). Liver shear-wave velocity (SWV) was measured using ARFI elastography. Liver samples were analysed for the SOS score, steatosis, lobular inflammation and fibrosis...
December 7, 2017: European Radiology
https://www.readbyqxmd.com/read/29217339/standardization-chemical-profiling-in%C3%A2-vitro-cytotoxic-effects-in%C3%A2-vivo-anti-carcinogenic-potential-and-biosafety-profile-of-indian-propolis
#7
Harshad Kapare, Sathiyanarayanan Lohidasan, Arulmozhi Sinnathambi, Kakasaheb Mahadik
BACKGROUND: Propolis from apiculture is known for wide range of medicinal properties owing to its vast chemical constituents including polyphenols, flavonoids and anticancer agent Caffeic acid phenethyl ester (CAPE). OBJECTIVES: The objective of the study was to extract and standardize Indian propolis (IP) with respect to selected markers by newly developed High performance liquid chromatography (HPLC) method, to evaluate in vitro and in vivo anticancer activity and biosafety of Indian propolis...
December 4, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/29216761/efficient-therapeutic-protein-expression-using-retroviral-replicating-vector-with-2a-peptide-in-cancer-models
#8
Andrew Hofacre, Kader Yagiz, Daniel Mendoza, Fernando Lopez Espinoza, Anthony Munday, Cindy Burrascano, Oded Singer, Harry Gruber, Doug Jolly, Amy Lin
Toca 511, a retroviral replicating vector (RRV), uses an internal ribosomal entry site (IRES) to express an optimized yeast cytosine deaminase (yCD2), which converts 5-fluorocytosine to 5-fluorouracil. This configuration is genetically stable in both preclinical mouse models and human clinical trials. However, the use of IRES (~ 600 bp) restricts choices of therapeutic transgenes due to limits in RRV genome size. In this study, we replaced IRES with 2A peptides derived from picornaviruses with or without a GSG linker...
December 7, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/29212821/trabeculectomy-bleb-needling-and-antimetabolite-administration-practices-in-the-uk-a-glaucoma-specialist-national-survey
#9
Karl Mercieca, Brett Drury, Archana Bhargava, Cecilia Fenerty
AIMS: To evaluate, describe and quantify the diversity in postoperative antimetabolite administration and bleb needling practices among glaucoma specialists performing trabeculectomy surgery within the UK and Ireland. METHODS: A cross-sectional online survey was distributed to all consultant glaucoma specialists who are on the United Kingdom and Eire Glaucoma Society (UKEGS) contact list. Participants were asked specific questions about their current practices for post-trabeculectomy antimetabolite administration followed by questions directly related to bleb needling procedures...
December 6, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29211295/phase-2-study-of-treatment-selection-based-on-tumor-thymidylate-synthase-expression-in-previously-untreated-patients-with-metastatic-colorectal-cancer-a-trial-of-the-ecog-acrin-cancer-research-group-e4203
#10
Neal J Meropol, Yang Feng, Jean L Grem, Mary F Mulcahy, Paul J Catalano, John S Kauh, Michael J Hall, Joel N Saltzman, Thomas J George, Jeffrey Zangmeister, Elena G Chiorean, Puneet S Cheema, Peter J O'Dwyer, Al B Benson
BACKGROUND: The authors hypothesized that patients with metastatic colorectal cancer (mCRC) who had tumors with low thymidylate synthase (TS-L) expression would have a higher response rate to combined 5-fluorouracil, leucovorin, and oxaliplatin (FOLFOX) plus bevacizumab (FOLFOX/Bev) than those with high TS (TS-H) expression and that combined irinotecan and oxaliplatin (IROX) plus bevacizumab (IROX/Bev) would be more effective than FOLFOX/Bev in those with TS-H tumors. METHODS: TS protein expression was determined in mCRC tissue...
December 6, 2017: Cancer
https://www.readbyqxmd.com/read/29209657/hitting-the-snooze-button-inducing-quiescence-with-the-flt3-inhibitor-quizartinib-protects-hematopoietic-progenitors-from-chemotherapy
#11
Samuel J Taylor, Wallace Y Langdon
Myelosuppression is one of the most severe and limiting side effects of chemotherapy. Our recent work outlines a strategy to prevent chemotherapy-induced myelosuppression by administering a priming dose of the FMS-Like Tyrosine kinase 3 (FLT3) inhibitor quizartinib. Furthermore, by administering sequential quizartinib primed injections of fluorouracil (5-FU), we demonstrated a novel and effective strategy to eliminate disease in two mouse models of quizartinib resistant acute myeloid leukemia (AML).
2017: Molecular & Cellular Oncology
https://www.readbyqxmd.com/read/29209561/tumor-associated-macrophages-and-response-to-5-fluorouracil-adjuvant-therapy-in-stage-iii-colorectal-cancer
#12
Alberto Malesci, Paolo Bianchi, Giuseppe Celesti, Gianluca Basso, Federica Marchesi, Fabio Grizzi, Giuseppe Di Caro, Tommaso Cavalleri, Lorenza Rimassa, Richard Palmqvist, Alessandro Lugli, Viktor H Koelzer, Massimo Roncalli, Alberto Mantovani, Shuji Ogino, Luigi Laghi
Tumor-associated macrophages (TAMs) play a role in tumor development and progression. We hypothesized that abundance of TAMs might modify efficacy of 5-fluorouracil chemotherapy in colorectal cancer. We measured the density of CD68+ TAMs at the invasive front of primary tumor of colorectal carcinoma (PT-TAMs; n = 208), at available matched metastatic lymph node (LN-TAMs; n = 149), and in an independent set of primary colorectal cancers (PT-TAMs, n = 111). The hazard ratios for disease-free survival were computed by Cox proportional-hazards model...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29209153/rac3-influences-the-chemoresistance-of-colon-cancer-cells-through-autophagy-and-apoptosis-inhibition
#13
María Fernanda Rubio, María Cecilia Lira, Francisco Damián Rosa, Adrían Dario Sambresqui, María Cecilia Salazar Güemes, Mónica Alejandra Costas
Background: RAC3 coactivator overexpression has been implicated in tumorigenesis, contributing to inhibition of apoptosis and autophagy. Both mechanisms are involved in resistance to treatment with chemotherapeutic agents. The aim of this study was to investigate its role in chemoresistance of colorectal cancer. Methods: The sensitivity to 5-fluorouracil and oxaliplatin in colon cancer cells HT-29, HCT 116 and Lovo cell lines, expressing high or low natural levels of RAC3, was investigated using viability assays...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/29207632/addition-of-5-fluorouracil-to-first-line-induction-chemotherapy-with-docetaxel-and-cisplatin-before-concurrent-chemoradiotherapy-does-not-improve-survival-in-locoregionally-advanced-nasopharyngeal-carcinoma
#14
Wang Fangzheng, Jiang Chuner, Wang Lei, Yan Fengqin, Ye Zhimin, Sun Quanquan, Liu Tongxin, Xu Min, Wu Peng, Long Bin, Rihito Aizawa, Masoto Sakamoto, Fu Zhenfu
Although a multicenter, randomized study indicated that induction chemotherapy (IC) with docetaxel/cisplatin/fluorouracil (TPF) before concurrent chemoradiotherapy (CCRT) improves survival outcomes, it remains unclear whether TPF is the best IC regimen for treating locoregionally advanced nasopharyngeal carcinoma (NPC). Our aim was to compare the efficacy and toxicities of TPF vs. docetaxel/cisplatin (TP) IC followed by CCRT in patients with locoregionally advanced NPC. One hundred thirty-two patients with locoregionally advanced NPC received 21-day cycles of IC with either TPF or TP...
October 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/29207336/cytotoxicity-molecular-modeling-cell-cycle-arrest-and-apoptotic-induction-induced-by-novel-tetrahydro-1-2-4-triazolo-3-4-a-isoquinoline-chalcones
#15
Magda F Mohamed, Hamdi M Hassaneen, Ismail A Abdelhamid
Novel tetrahydro-[1,2,4]triazolo[3,4-a]isoquinolin-3-yl)-3-arylprop-2-en-1-one derivatives were synthesized and their structures were confirmed by different spectral tools. Cytotoxicity test revealed that some compounds exhibited strong to moderate effect, while others showed weak action against different cancer cell lines (MCF7, A549, HCT116, and Hepg2). Breast carcinoma revealed higher sensitivity toward all derivatives especially compounds 5 and 8 which offered the lowest IC50 values (50.05, and 27.15 μg/ml) respectively, relative to the positive control 5-fluorouracil (5-FU) (IC50 = 178 μg/ml)...
November 21, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29206996/tumor-regression-grading-after-preoperative-chemoradiotherapy-as-a-prognostic-factor-and-individual-level-surrogate-for-disease-free-survival-in-rectal-cancer
#16
Emmanouil Fokas, Philipp Ströbel, Rainer Fietkau, Michael Ghadimi, Torsten Liersch, Gerhard G Grabenbauer, Arndt Hartmann, Marco Kaufmann, Rolf Sauer, Ullrich Graeven, Hans Hoffmanns, Hans-Rudolf Raab, Torsten Hothorn, Christian Wittekind, Claus Rödel
Background: We investigated tumor regression grading (TRG) as a prognostic marker and individual-level surrogate for disease-free survival (DFS) in patients with rectal carcinoma treated within the Chirurgische Arbeitsgemeinschaft fur Onkologie/Arbeitsgemeinschaft Radiologische Onkologie/Arbeitsgemeinschaft Internistische Onkologie (CAO/ARO/AIO)-04 randomized trial. Methods: TRG was recorded prospectively using the Dworak classification in 1179 patients after preoperative fluorouracil-based chemoradiotherapy (CRT) with or without oxaliplatin...
December 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/29206871/clopidogrel-in-a-combined-therapy-with-anticancer-drugs-effect-on-tumor-growth-metastasis-and-treatment-toxicity-studies-in-animal-models
#17
Agnieszka Denslow, Marta Świtalska, Joanna Jarosz, Diana Papiernik, Kseniia Porshneva, Marcin Nowak, Joanna Wietrzyk
Clopidogrel, a thienopyridine derivative with antiplatelet activity, is widely prescribed for patients with cardiovascular diseases. In addition to antiplatelet activity, antiplatelet agents possess anticancer and antimetastatic properties. Contrary to this, results of some studies have suggested that the use of clopidogrel and other thienopyridines accelerates the progression of breast, colorectal, and prostate cancer. Therefore, in this study, we aimed to evaluate the efficacy of clopidogrel and various anticancer agents as a combined treatment using mouse models of breast, colorectal, and prostate cancer...
2017: PloS One
https://www.readbyqxmd.com/read/29204529/late-small-bowel-toxicity-after-aggressive-abdominopelvic-intensity-modulated-radiation-therapy
#18
Andrew Ling, Eli Furhang, Shannon N Ryemon, Ronald D Ennis
Purpose: We retrospectively analyzed late small bowel toxicity in patients who received abdominal or pelvic intensity modulated radiation therapy (IMRT) to the small bowel with a maximum dose greater than the generally accepted maximal tolerable dose of 45 Gy. Methods and materials: All patients (N = 94) who received IMRT with a point dose of at least 45 Gy to tightly contoured small bowel between 2005 and 2014 at our institution were included. The median prescribed treatment dose was 70...
October 2017: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/29203613/nfe2l1-silenced-insulinoma-cells-acquire-aggressiveness-and-chemo-resistance
#19
Jingqi Fu, Hongzhi Zheng, Qi Cui, Chengjie Chen, Simeng Bao, Jing Sun, Lu Li, Bei Yang, Huihui Wang, Yongyong Hou, Yuanyuan Xu, Yuanhong Xu, Qiang Zhang, Jingbo Pi
The transcription factor nuclear factor erythroid 2 like 1 (NFE2L1 or NRF1) is involved in various critical cell processes such as maintenance of ubiquitin-proteasome system and regulation of the cellular antioxidant response. We previously determined that pancreatic β-cell-specific Nfe2l1-knockout mice had hyperinsulinemia, and that silencing of Nfe2l1 in mouse islets or MIN6 insulinoma β-cells induced elevated basal insulin release and altered glucose metabolism. Hypoglycemia is a major issue with aggressive insulinomas, although a role of NFE2L1 in this pathology is not defined...
December 4, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/29202398/synthesis-and-biological-characterization-of-ubenimex-fluorouracil-conjugates-for-anti-cancer-therapy
#20
Yuqi Jiang, Xiaoyang Li, Jinning Hou, Yongxue Huang, Xuejian Wang, Yuping Jia, Qingwei Wang, Wenfang Xu, Jian Zhang, Yingjie Zhang
Previously a novel ubenimex-fluorouracil (5-FU) conjugate, BC-01 was identified and validated as a potent CD13 inhibitor with marked in vitro and in vivo antitumor potency. Herein, further structural modifications of the linker part of BC-01 was carried out to get more potent and stable ubenimex-fluorouracil conjugates. It was striking that most of these conjugates showed even more potent CD13 inhibitory activities than BC-01 and the approved CD13 inhibitor ubenimex. One representative compound 12a displayed significant in vitro anti-proliferation, pro-apoptosis, anti-metastasis, anti-angiogenesis and CD13+ cell elimination effects...
November 30, 2017: European Journal of Medicinal Chemistry
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