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https://www.readbyqxmd.com/read/28634253/role-of-autophagy-in-tumor-necrosis-factor-%C3%AE-induced-apoptosis-of-osteoblast-cells
#1
Liwen Zheng, Wanchun Wang, Jiangdong Ni, Xinzhan Mao, Deye Song, Tang Liu, Jianwei Wei, Zhou Huaying
The aim of this study is to investigate the role of tumor necrosis factor-α (TNF-α) in apoptosis and autophagy of mouse osteoblast MC3T3-E1 cells, as well as the crosstalk between autophagy and apoptosis. Mouse osteoblast MC3T3-E1 cells were cultured in vitro and treated with 5-fluorouracil (5-FU), rapamycin, 3-methyl adenine (3-MA) and TNF-α either alone or in combination, respectively. MTT assays were used to monitor the cell viability upon different treatments. Annexin-V-FITC/propidium iodide (PI) staining was used to detect the apoptotic rate of osteoblasts...
June 20, 2017: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/28633089/first-line-panitumumab-plus-folfox4-or-folfiri-in-colorectal-cancer-with-multiple-or-unresectable-liver-metastases-a-randomised-phase-ii-trial-planet-ttd
#2
Alfredo Carrato, Albert Abad, Bartomeu Massuti, Cristina Grávalos, Pilar Escudero, Federico Longo-Muñoz, José-Luis Manzano, Auxiliadora Gómez, María José Safont, Javier Gallego, Beatriz García-Paredes, Carles Pericay, Rosario Dueñas, Fernando Rivera, Ferrán Losa, Manuel Valladares-Ayerbes, Encarnación González, Enrique Aranda
BACKGROUND: In first-line wild-type (WT)-Kirsten rat sarcoma viral oncogene homologue (KRAS) metastatic colorectal cancer (mCRC), panitumumab (Pmab) improves outcomes when added to FOLFOX [folinic acid, 5-fluorouracil, and oxaliplatin] or FOLFIRI [folinic acid, 5-fluorouracil, and irinotecan]. However no trial has directly compared these combinations. METHODS: Multicentre, open-label study in untreated patients ≥ 18 years with (WT)-KRAS mCRC and multiple or unresectable liver-limited disease (LLD) randomised to either Pmab-FOLFOX4 or Pmab-FOLFIRI...
June 17, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28631569/insulin-induced-enhancement-of-mcf-7-breast-cancer-cell-response-to-5-fluorouracil-and-cyclophosphamide
#3
Siddarth Agrawal, Mateusz Łuc, Piotr Ziółkowski, Anil Kumar Agrawal, Ewa Pielka, Kinga Walaszek, Krzysztof Zduniak, Marta Woźniak
The study was designed to evaluate the potential use of insulin for cancer-specific treatment. Insulin-induced sensitivity of MCF-7 breast cancer cells to chemotherapeutic agents 5-fluorouracil and cyclophosphamide was evaluated. To investigate and establish the possible mechanisms of this phenomenon, we assessed cell proliferation, induction of apoptosis, activation of apoptotic and autophagic pathways, expression of glucose transporters 1 and 3, formation of reactive oxygen species, and wound-healing assay...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28629331/depletion-of-p21-activated-kinase-1-up-regulates-the-immune-system-of-apc-%C3%A2-14-mice-and-inhibits-intestinal-tumorigenesis
#4
Nhi Huynh, Kai Wang, Mildred Yim, Chelsea J Dumesny, Mauro S Sandrin, Graham S Baldwin, Mehrdad Nikfarjam, Hong He
BACKGROUND: P21-activated kinase 1 (PAK1) stimulates growth and metastasis of colorectal cancer (CRC) through activation of multiple signalling pathways. Up-regulation of CRC stem cell markers by PAK1 also contributes to the resistance of CRC to 5-fluorouracil. The aim of this study was to investigate the effect of PAK1 depletion and inhibition on the immune system and on intestinal tumour formation in APC(∆14/+) mice. METHODS: The PAK1 KO APC(∆14/+) mice were generated by cross-breeding of PAK1 KO mice with APC(∆14/+) mice...
June 19, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28629006/a-colon-targeted-drug-delivery-system-based-on-alginate-modificated-graphene-oxide-for-colorectal-liver-metastasis
#5
Bin Zhang, Yayuan Yan, Qiujuan Shen, Dong Ma, Langhuan Huang, Xiang Cai, Shaozao Tan
A major problem associated with colon cancer is liver metastasis. A colon-targeted drug delivery system is one way to address this problem after the resection of colorectal cancer. However, traditional drug delivery systems face many challenges, such as an inability to control the release rate, inaccurate targeting, susceptibility to the microenvironment and poor stability. Here, we report the development of a graphene oxide (GO)-based, sodium alginate (ALG) functionalized colon-targeting drug delivery system, that is loaded with 5-fluorouracil (5-FU) as the anti-cancer drug (denoted as GO-ALG/5-FU)...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28628771/lentinan-diminishes-apoptotic-bodies-in-the-ileal-crypts-associated-with-s-1-administration
#6
Yasuyo Suga, Kenji Takehana
S-1 is an oral agent containing tegafur (a prodrug of 5-fluorouracil) that is used to treat various cancers, but adverse effects are frequent. Two pilot clinical studies have suggested that lentinan (LNT; β-1,3-glucan) may reduce the incidence of adverse effects caused by S-1 therapy. In this study, we established a murine model for assessment of gastrointestinal toxicity associated with S-1 and studied the effect of LNT. S-1 was administered orally to BALB/c mice at the effective dose (8.3mg/kg, as tegafur equivalent) once daily (5days per week) for 3weeks...
June 16, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28628181/synthesis-and-antiviral-evaluation-of-base-modified-deoxythreosyl-nucleoside-phosphonates
#7
Chao Liu, Shrinivas G Dumbre, Christophe Pannecouque, Brent Korba, Steven De Jonghe, Piet Herdewijn
l-α-2'-Deoxythreosyl nucleoside phosphonates and their phosphonodiamidate prodrugs with a hypoxanthine, 2,6-diaminopurine, 2-amino-6-cyclopropylaminopurine, 7-deazaadenine, 5-fluorouracil and 5-methylcytosine heterocycle as a nucleobase were synthesized and evaluated for their inhibitory activity against HIV and HBV. The 2,6-diaminopurine modified analogue 23a displayed the most potent activity against HIV, with an EC50 value of 11.17 μM against HIV-1 (IIIB) and an EC50 value of 8.15 μM against HIV-2 (ROD)...
June 19, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28625333/liver-metastases-from-gastric-carcinoma-a-case-report-and-review-of-the-literature
#8
Beata Polkowska-Pruszyńska, Karol Rawicz-Pruszyński, Bogumiła Ciseł, Robert Sitarz, Grażyna Polkowska, Witold Krupski, Wojciech P Polkowski
Gastric carcinoma (GC) is the fifth most common malignancy worldwide but the third leading cause of cancer death, and surgery remains the only curative treatment option. Prognosis of patients with liver metastases from gastric carcinoma (LMGC) is poor, and the optimal treatment of metastatic gastric cancer remains a matter of debate. In 2002, a 53-year-old male patient with GC and synchronous oligometastatic lesion in liver VIII segment underwent a total gastrectomy combined with metastasectomy. The pathologic diagnosis was stage IV gastric adenocarcinoma (pT3N2M1), which was treated with adjuvant chemotherapy (cisplatin, epirubicin, leucovorin, and 5-fluorouracil)...
May 2017: Current Problems in Cancer
https://www.readbyqxmd.com/read/28624221/mir-1290-is-a-biomarker-in-dna-mismatch-repair-deficient-colon-cancer-and-promotes-resistance-to-5-fluorouracil-by-directly-targeting-hmsh2
#9
Ling Ye, Tao Jiang, Huanzhang Shao, Lin Zhong, Zhaowen Wang, Yuan Liu, Huamei Tang, Bingyu Qin, Xiaoqing Zhang, Junwei Fan
5-Fluorouracil (5FU)-based adjuvant therapy is the first-line therapy for treating stage II and III colon cancer after surgery. However, its therapeutic efficacy is limited because of chemoresistance, especially in deficient mismatch repair (dMMR) colon cancer. Here, we first used laser capture microdissection to obtain purified cells from four dMMR and four proficient mismatch repair (pMMR) colon cancer tissues. Second, microRNA (miRNA) microarray chips were used to identify miRNAs that are differentially expressed between these two classes of tumors...
June 16, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28623509/telomerase-and-drug-resistance-in-cancer
#10
REVIEW
Natalia Lipinska, Aleksandra Romaniuk, Anna Paszel-Jaworska, Ewa Toton, Przemyslaw Kopczynski, Blazej Rubis
It is well known that a decreased expression or inhibited activity of telomerase in cancer cells is accompanied by an increased sensitivity to some drugs (e.g., doxorubicin, cisplatin, or 5-fluorouracil). However, the mechanism of the resistance resulting from telomerase alteration remains elusive. There are theories claiming that it might be associated with telomere shortening, genome instability, hTERT translocation, mitochondria functioning modulation, or even alterations in ABC family gene expression. However, association of those mechanisms, i...
June 16, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28621489/validation-and-comparison-of-quality-of-life-measures-for-topical-5-fluorouracil-treatment-results-from-a-randomized-controlled-trial
#11
H Pomerantz, M-M Chren, R Lew, M A Weinstock
BACKGROUND: Topical 5-fluorouracil (5-FU) is commonly used for high-risk patients with keratinocyte carcinoma (KC). Skindex and Skin Cancer Index (SCI) are validated instruments to measure quality of life (QoL) of patients with KC and those who have had surgical treatment of KCs. AIM: To validate Skindex and SCI for topical 5-fluorouracil (5-FU) application and to compare the two QoL instruments. METHODS: We randomized 932 veterans at high risk for developing a KC to either topical 5-FU or vehicle control cream applied to the face and ears for up to 1 month...
July 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28621239/a-microrna-signature-associated-with-pathological-complete-response-to-novel-neoadjuvant-therapy-regimen-in-triple-negative-breast-cancer
#12
Raúl García-Vazquez, Erika Ruiz-García, Abelardo Meneses García, Horacio Astudillo-de la Vega, Fernando Lara-Medina, Alberto Alvarado-Miranda, Héctor Maldonado-Martínez, Juan A González-Barrios, Alma D Campos-Parra, Sergio Rodríguez Cuevas, Laurence A Marchat, César López-Camarillo
Neoadjuvant chemotherapy aims to improve the outcome of breast cancer patients, but only few would benefit from this treatment. Pathological complete response has been proposed as a surrogate marker for the prediction of long-term clinical benefits; however, 50%-85% patients have an unfavorable pathological complete response to chemotherapy. MicroRNAs are known biomarkers of breast cancer progression; nevertheless, their potential to identify patients with pathological complete response remains poorly understood...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28619450/tocosome-novel-drug-delivery-system-containing-phospholipids-and-tocopheryl-phosphates
#13
M R Mozafari, R Javanmard, M Raji
The potential of two derivatives of vitamin E, i.e. α-tocopheryl phosphate (TP) and di-α-tocopheryl phosphate (T2P), for the protection and delivery of therapeutics is being investigated in our laboratory and some promising results have been obtained so far. Novel nanocarrier systems containing TP, T2P and different lipids/phospholipids (phosphatidylcholine, stearyl amine, Phospholipon 90H, Phospholipon 100H) with and without cholesterol were prepared using Mozafari method. The preparation method did not require utilization of potentially toxic solvents, detergents or employment of harsh treatments such as sonication or high-shear force homogenization...
June 12, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28619285/5-fluorouracil-biomarkers-in-pancreatic-neuroendocrine-tumours
#14
EDITORIAL
Louis de Mestier, Jérôme Cros, Pascal Hammel
No abstract text is available yet for this article.
June 8, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28618970/letter-regarding-zhao-et-al-entitled-dpyd-gene-polymorphisms-are-associated-with-risk-and-chemotherapy-prognosis-in-pediatric-patients-with-acute-lymphoblastic-leukemia
#15
Maarten J Deenen, Linda M Henricks, Gabe S Sonke, Jan Hm Schellens, Didier Meulendijks
Zhao et al. investigated the association between germline genetic polymorphisms in DPYD, the gene encoding dihydropyrimidine dehydrogenase, and (1) the risk of developing pediatric acute lymphoblastic leukemia and (2) outcome of acute lymphoblastic leukemia following the treatment with 5-fluorouracil plus oxaliplatin (FOLFOX). The authors found that the common DPYD variant c.85T>C (rs1801265, DPYD*9A) was significantly associated with (1) risk of developing pediatric acute lymphoblastic leukemia, (2) complete response rate, (3) event-free survival, and (4) treatment-related toxicity...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28614773/assessment-of-neurotoxicity-of-pharmacological-compounds-during-early-neural-development-of-human-embryonic-stem-cells
#16
H Y Kang, E J Hong, H S Kang, C Ahn, E B Jeung
Human embryonic stem cells (hESCs), with the potential for differentiation, have been used to evaluate the embryotoxicity of various compounds. The effects of pharmacological compounds (cytosine arabinoside, 5-fluorouracil, hydroxyurea, indomethacin, and dexamethasone) on neurogenesis of hESCs over 28 days were examined based on cytotoxicity (half-maximal inhibitory concentration of viability, IC50) and expression of neural markers. Cytosine arabinoside, 5-fluorouracil, and hydroxyurea showed strong cytotoxicity (IC50 < 10 μM), whereas indomethacin and dexamethasone had weaker cytotoxic effects...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28612017/treatment-options-in-colorectal-liver-metastases-hepatic-arterial-infusion
#17
REVIEW
Alice Zervoudakis, Taryn Boucher, Nancy E Kemeny
BACKGROUND: The liver is the most common site for metastases from colorectal cancer (CRC) with the majority of these patients having unresectable disease. METHODS: This is a retrospective review of studies using hepatic arterial infusion (HAI) therapy to treat liver metastasis from CRC. A PubMed search of randomized controlled trials and retrospective studies from 2006 to present was conducted using the search terms 'hepatic arterial infusion (HAI) therapy', 'colorectal cancer', and 'treatment of liver metastases'...
March 2017: Visceral Medicine
https://www.readbyqxmd.com/read/28611669/cd24-expression-is-increased-in-5-fluorouracil-treated-esophageal-adenocarcinoma-cells
#18
Pilar Jiménez, Eduardo Chueca, María Arruebo, Mark Strunk, Estela Solanas, Trinidad Serrano, María A García-González, Ángel Lanas
The cancer stem cell (CSC) model suggests that there are subsets of cells within a tumor with increased proliferation and self-renewal capacity, which play a key role in therapeutic resistance. The importance of cyclooxygenase-2 (COX-2) in carcinogenesis has been previously established and the use of COX-2 inhibitors as celecoxib has been shown to exert antitumor effects. The present study investigated whether treatment of esophageal adenocarcinoma (EAC) cells with 5-fluorouracil (5-FU) or the growth of tumor spheres increased the proportion of CSCs and also if treatment with celecoxib was able to reduce the putative CSC markers in this tumor...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28610406/prognostic-nomogram-for-advanced-hepatocellular-carcinoma-treated-with-folfox-4
#19
Shukui Qin, Xinji Zhang, Wei Guo, Jian Feng, Tianyi Zhang, Lichuang Men, Jia He
Background: The Oxaliplatin plus 5-Fluorouracil /Leucovorin (FOLFOX4) regimen have been approved by Chinese Food and Drug Administration (CFDA), and covered by health insurance for patients with advanced hepatocellular carcinoma (HCC) in China. However, the efficacy of FOLFOX4 for HCC patients is still under debate. In this study, we aimed to establish a nomogram to identify HCC patients who might benefit from FOLFOX4 chemotherapy base on individual profile. Methods: A total of 184 patients from the EACH study who were treated with FOLFOX4 were included in this analysis...
May 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28608993/oral-fluoropyrimidine-versus-intravenous-5-fluorouracil-for-the-treatment-of-advanced-gastric-and-colorectal-cancer-meta-analysis
#20
Linlin Zhang, Xiaoli Xing, Fanlu Meng, Yan Wang, Diansheng Zhong
BACKGROUND: 5-Fluorouracil(5-Fu) is one of the most commonly prescribed antineoplastic agents against gastric and colorectal cancers. Continuous infusion would be the optimal way of its administration, however, may usually cause thrombosis, infection and prolonged hospital stay. Oral fluoropyrimidines would be an attractive alternative, but their efficiency and toxicities for the treatment of gastric and colorectal cancer are still obscure as compared with infusion 5-Fu. METHODS: Literature retrieval, trials selection and assessment, data collection and statistic analysis were performed according to the Cochrane Handbook...
June 13, 2017: Journal of Gastroenterology and Hepatology
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