Read by QxMD icon Read


Muhammad W Saif, Melissa Smith, Antonio Maloney
5-Fluorouracil (5-FU) is the backbone of the chemotherapy regimens approved for treatment of many malignancies, especially colorectal cancer (CRC). The incidence of cardiotoxicity associated with 5-FU ranges between 1.5% to 18% and is most commonly manifested as anginal symptoms. Cardiomyopathy is very rarely reported with 5-FU and capecitabine. A 35-year-old Caucasian male with T3, N1, M0 rectal cancer after the initial neoadjuvant chemoradiation with 5FU/LV followed by surgical abdominoperineal resection (APR), began mFOLFOX6 in the adjuvant setting...
September 14, 2016: Curēus
Tetsuhito Muranaka, Satoshi Yuki, Yoshito Komatsu, Kentaro Sawada, Kazuaki Harada, Yasuyuki Kawamoto, Hiroshi Nakatsumi, Naoya Sakamoto
PURPOSE: The International Organization for Standardization-5fluorouracil (FU) 10 trial found that bolus 5-FU and l-leucovorin was not inferior to S-1 in the treatment of gastric cancer (GC). Continuous 5-FU and the rapid injection of 5-FU have different anti-cancer effects. Thus, bolus 5-FU and l-leucovorin treatment might be useful for oral FU-resistant GC. MATERIALS AND METHODS: We retrospectively analyzed the medical records of all patients with S-1 or capecitabine-resistant, unresectable, or recurrent GC treated with bolus 5-FU and l-leucovorin between January 2010 and December 2015 at Hokkaido University Hospital...
September 2016: Journal of Gastric Cancer
Shuitu Feng, Zhigao Zheng, Lihua Feng, Lihong Yang, Zuhong Chen, Yubiao Lin, Yingqin Gao, Yide Chen
The cancer stem cell (CSC) model suggests that a small subset of cancer cells possess stem cell properties and plays a crucial role in tumor initiation, metastasis and resistance to anticancer therapy. Exploration of the specific therapies targeting at CSCs has been a crucial issue in antitumor research. Gastric cancer (GC) cells often exist in an ischemic microenvironment with acidic conditions in vivo, thus maintenance of cellular pH homeostasis is important for the survival and function of GC cells. Proton pump inhibitors (PPIs) may prevent intracellular proton extrusions which consequently reduce cancer cell survival under acidic conditions...
October 7, 2016: Oncology Reports
Zhao-Wei Zou, Hai-Jin Chen, Jin-Long Yu, Zong-Hai Huang, Shun Fang, Xiao-Hua Lin
Chemotherapy is one of the most commonly used therapeutic strategies for metastatic colon cancer. However, the development of resistance to chemotherapeutic agents limits their application in clinical use. The underlying mechanisms of this resistance development require further elucidation. The current study investigated the effects of connexin43 (Cx43) gap junctions on 5‑fluorouracil (5‑FU), oxaliplatin and irinotecan in colon cancer cells. Three different methods were used to manipulate Cx43 gap junction function: i) Cell culture at different densities; ii) pretreatment with a Cx43 specific inhibitor or enhancer; and iii) Cx43 gene knock‑down...
October 6, 2016: Molecular Medicine Reports
Markovic Srdjan, Antic Jadranka, Dimitrijevic Ivan, Zogovic Branimir, Bojic Daniela, Svorcan Petar, Markovic Velimir, Krivokapic Zoran
BACKGROUND & OBJECTIVES: The two key aspects associated with the microsatellite instability (MSI) as genetic phenomenon in colorectal cancer (CRC) are better survival prognosis, and the varying response to 5-fluorouracil (5-FU)-based chemotherapy. This study was undertaken to measure the survival of surgically treated patients with stages II and III CRC based on the MSI status, the postoperative 5-FU treatment as well as clinical and histological data. METHODS: A total of 125 consecutive patients with stages II and III (American Joint Committee on Cancer, AJCC staging) primary CRCs, were followed prospectively for a median time of 31 months (January 2006 to December 2009)...
May 2016: Indian Journal of Medical Research
Sadamoto Zenda, Takashi Kojima, Ken Kato, Sachiko Izumi, Taijiro Ozawa, Naomi Kiyota, Chikatoshi Katada, Takahiro Tsushima, Yoshinori Ito, Tetsuo Akimoto, Yasuhisa Hasegawa, Miyuki Kanamaru, Hiroyuki Daiko
PURPOSE: To clarify, in a multicenter, single-arm, phase 2 study (UMIN Clinical Trials Registry no. UMIN000001439), the clinical profile of chemoradiotherapy (CRT) for cervical esophageal cancer. PATIENTS AND METHODS: Patients with operable cervical esophageal cancer, excluding candidates for endoscopic resection, were enrolled. Protocol treatment consisted of CRT and adjuvant chemotherapy (CT). First, patients received concurrent CRT with 5-fluorouracil (5-FU) plus cisplatin (CDDP)...
September 3, 2016: International Journal of Radiation Oncology, Biology, Physics
Rebecca B Goody, Helen MacKay, Bethany Pitcher, Amit Oza, Lillian L Siu, John Kim, Rebecca K S Wong, Eric Chen, Carol Swallow, Jennifer Knox, Zahra Kassam, Bernard Cummings, Ron Feld, David Hedley, Geoffrey Liu, Monika K Krzyzanowska, Robert Dinniwell, Anthony M Brade, Laura A Dawson, Melania Pintilie, Jolie Ringash
PURPOSE: Locoregional recurrence is common after surgery for gastric cancer. Adjuvant therapy improves outcomes but with toxicity. This phase 1/2 study investigated infusional 5-fluorouracil (5-FU) in combination with biweekly cisplatin delivered concurrently with image guided high-precision radiation therapy. METHODS AND MATERIALS: Eligible patients had completely resected stage IB to IV (Union for International Cancer Control TNM 6th edition) nonmetastatic gastric adenocarcinoma...
August 31, 2016: International Journal of Radiation Oncology, Biology, Physics
Feng-Hua Wang, Yun Wang, Zhen-Dong Chen, Jian-Hua Chen, Feng-Zhan Qin, Wen-Qi Jiang, Yu-Hong Li
Recombinant human lymphotoxin-α derivative (rhLTα-Da) is a lymphotoxin-α derivative missing 27 N-terminal amino acid residues. This multicenter phase IIa trial was conducted to evaluate the safety, efficacy and pharmacokinetics of rhLTα-Da with cisplatin (DDP) and 5-fluorouracil (5-Fu) for metastatic esophageal squamous cell cancer (ESCC) and gastric adenocarcinoma (GC). Two different rhLTα-Da doses (10 µg/m(2)/d and 20 µg/m(2)/d) in combination with DDP and 5-Fu were evaluated in this study. The first 6 ESCC and 6 GC patients were given 10 µg/m(2)/d rhLTα-Da followed by DDP (15 mg/m(2)/d) and 5-Fu (750 mg/m(2)/d) on days 1-5...
November 2016: Medical Oncology
Magdalene A Dohil
BACKGROUND: Actinic keratosis (AK) is a neoplastic keratosis and a precursor of squamous cell carcinoma (SCC). OBJECTIVE: We are presenting data on a novel formulation of 4% 5-Fluorouracil (5-FU) in an aqueous vehicle cream containing peanut oil (Tolak) with once daily application versus treatment with 5% 5-FU twice daily for 4 weeks. METHODS: 1) A dose ranging study of 4% 5-FU cream once or twice daily for 2 or 4 weeks and its vehicle, compared to 5% 5-FU cream twice daily for 4 weeks in 121 subjects...
October 1, 2016: Journal of Drugs in Dermatology: JDD
Hongmei Wang, Jianmin Liu, Xuemei Hu, Shanshan Liu, Baojun He
BACKGROUND Hepatocellular carcinoma (HCC) causes many deaths worldwide every year, especially in Asia. It is characterized by high malignancy, recurrence, and short survival time. Inflammation is closely related to the initiation and development of HCC. Tumor necrosis factor-α (TNF-α), an essential inflammatory mediator, has been studied as a potential therapy target in many cancers. However, its potential role in HCC diagnosis and therapy is still unclear. MATERIAL AND METHODS In our study, we detected the TNF-α expression in both human HCC tumor tissue and HCC cell lines HepG2 and HuH7...
October 14, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Chintan A Dalwadi, Gayatri C Patel
BACKGROUND: The objective of the study was to investigate the cytotoxicity and cellular uptake of prepared 5-Fluorouracil (5-FU) nanohydrogel formulation using KB oral cancer cell line and VERO fibroblast cell line. METHOD: The biodegradable thermoresponsive modified methylcellulose (MMC) polymer was used for the preparation of nanohydrogel whereas it shows sol-gel phase transition at 36˚C to 40˚C. The physical crosslinking method was used followed by probe sonication for the preparation of 5-FU loaded MMC nanohydrogel...
October 13, 2016: Current Drug Delivery
Marina Borro, Andrea Botticelli, Federica Mazzuca, Elisa Concetta Onesti, Giovanna Gentile, Adriana Romiti, Bruna Cerbelli, Eva Mazzotti, Luca Marchetti, Luana Lionetto, Maurizio Simmaco, Paolo Marchetti
BACKGROUND: 5-fluorouracil (5-FU) based chemotherapy is the most common first line regimen used in gastric and gastroesophageal junction cancer, but development of severe toxicity is a main concern in the treatment. The present study is aimed to evaluate a novel pre-treatment assay, known as the 5-FU degradation rate (5-FUDR), as a predictive factor for 5-FU toxicity. METHODS: Pre-treatment 5-FUDR and gene polymorphisms related to 5-FU metabolism (DPYDIVS14+1G>A, MTHFRA1298T or C677T, TMYS TSER) were characterized in gastro-esophageal cancer patients...
October 11, 2016: Oncotarget
Cheng Wen Yao, Kyoung Ah Kang, Mei Jing Piao, Yea Seong Ryu, Pattage Madushan Dilhara Jayatissa Fernando, Min Chang Oh, Jeong Eon Park, Kristina Shilnikova, Soo-Young Na, Seung Uk Jeong, Sun-Jin Boo, Jin Won Hyun
We investigated the role of autophagy in SNUC5/5-FUR, 5-fluorouracil (5-FU) resistant SNUC5 colon cancer cells. SNUC5/5-FUR cells exhibited low level of autophagy, as determined by light microscopy, confocal microscopy, and flow cytometry following acridine orange staining, and the decreased level of GFP-LC3 puncta. In addition, expression of critical autophagic proteins such as Atg5, Beclin-1 and LC3-II and autophagic flux was diminished in SNUC5/5-FUR cells. Whereas production of reactive oxygen species (ROS) was significantly elevated in SNUC5/5-FUR cells, treatment with the ROS inhibitor N-acetyl cysteine further reduced the level of autophagy...
October 17, 2016: Biomolecules & Therapeutics
T Kunicka, P Prochazka, I Krus, P Bendova, M Protivova, S Susova, V Hlavac, V Liska, P Novak, M Schneiderova, P Pitule, J Bruha, O Vycital, P Vodicka, P Soucek
BACKGROUND: This study addresses involvement of major 5-fluorouracil (5-FU) pathway genes in the prognosis of colorectal carcinoma patients. METHODS: Testing set and two validation sets comprising paired tumor and adjacent mucosa tissue samples from 151 patients were used for transcript profiling of 15 5-FU pathway genes by quantitative real-time PCR and DNA methylation profiling by high resolution melting analysis. Intratumoral molecular profiles were correlated with clinical data of patients...
October 12, 2016: BMC Cancer
Juliana E Bajic, Georgina L Eden, Lorrinne S Lampton, Ker Y Cheah, Kerry A Lymn, Jinxin V Pei, Andrea J Yool, Gordon S Howarth
AIM: To investigate the effects of orally gavaged aqueous rhubarb extract (RE) on 5-fluorouracil (5-FU)-induced intestinal mucositis in rats. METHODS: Female Dark Agouti rats (n = 8/group) were gavaged daily (1 mL) with water, high-dose RE (HDR; 200 mg/kg) or low-dose RE (LDR; 20mg/kg) for eight days. Intestinal mucositis was induced (day 5) with 5-FU (150 mg/kg) via intraperitoneal injection. Intestinal tissue samples were collected for myeloperoxidase (MPO) activity and histological examination...
October 7, 2016: World Journal of Gastroenterology: WJG
Stephen G Swisher, Jennifer Moughan, Ritsuko U Komaki, Jaffer A Ajani, Tsung T Wu, Wayne L Hofstetter, Andre A Konski, Christopher G Willett
INTRODUCTION: The impact of selective surgical resection for esophageal cancer patients treated with definitive chemoradiation has not been clearly evaluated long-term. METHODS: NRG Oncology RTOG 0246 was a multi-institutional, single arm, open-label, non-randomized phase II study, which enrolled forty-three patients from Sept 2003 to March 2008 with clinical stage T1-4N0-1M0 squamous cell or adenocarcinoma of the esophagus or gastroesophageal junction (GEJ) from 19 sites...
October 8, 2016: Journal of Thoracic Oncology
Tarig Elraiyah, Calvin R Jerde, Shikshya Shrestha, Rentian Wu, Qian Nie, Nasra H Giama, Vivekananda Sarangi, Lewis R Roberts, Steven M Offer, Robert B Diasio
Clinical studies have identified specific genetic variants in dihydropyrimidine dehydrogenase (DPD, DPYD gene) as predictors of severe adverse toxicity to the commonly used chemotherapeutic 5-fluorouracil; however, these studies have focused on European and European-American populations. Our lab recently demonstrated that additional variants in non-European haplotypes are predictive of 5-FU toxicity. The objective of this study was to identify potential risk variants in an under-studied East African population relevant to our institution's catchment area...
October 11, 2016: Clinical Pharmacology and Therapeutics
A Krishnamurthy, J Kankesan, X Wei, S Nanji, J J Biagi, C M Booth
BACKGROUND: International guidelines recommend peri-operative chemotherapy for patients with resectable colorectal cancer liver metastases (CRCLM). Chemotherapy delivery in routine practice is not well described. METHODS: All cases of CRC who underwent resection of LM in 2002-2009 were identified using the population-based Ontario Cancer Registry. Electronic treatment records identified chemotherapy delivered within 16 weeks before or after hepatectomy. All pathology reports were reviewed to describe extent of LM...
September 17, 2016: European Journal of Surgical Oncology
Lijun Zhao, Dongling Zou, Xueju Wei, Lanlan Wang, Yuanyuan Zhang, Siqi Liu, Yanmin Si, Hualu Zhao, Fang Wang, Jia Yu, Yanni Ma, Guotao Sun
Pancreatic cancer is a highly lethal disease due to its rapid dissemination and resistance to conventional chemotherapy. MicroRNAs (miRNAs) are emerging as novel regulators of chemoresistance, which modulate the expression of drug resistance-related genes. MiRNA-221 has been reported to be associated with chemoresistance in various types of cancer. But the detailed molecular mechanism about miR-221-3p regulating 5-fluorouracil (5-FU) resistance in human pancreatic cancer remains to be clarified. In this study, we investigated the association between miR-221-3p expression and 5-FU sensitivity...
October 10, 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
Atsunobu Sagara, Katsuhide Igarashi, Maky Otsuka, Takeshi Karasawa, Noriko Gotoh, Michiko Narita, Naoko Kuzumaki, Minoru Narita, Yoshinori Kato
Although drug resistance is often observed in metastatic recurrence of breast cancer, little is known about the intrinsic drug resistance in such metastases. In the present study, we found, for the first time, that MDA-MB-231BR, a brain metastatic variant of a human breast cancer cell line, was refractory to treatment with 5-fluorouracil (5-FU) even without chronic drug exposure, compared to its parent cell line, MDA-MB-231, and a bone metastatic variant, MDA-MB-231SCP2. Both the mRNA and protein levels of COX-2 and BCL2A1 in MDA-MB-231BR were significantly higher than those in MDA-MB-231 or MDA-MB-231SCP2...
2016: PloS One
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"