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Gemcitabine

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https://www.readbyqxmd.com/read/28641307/human-equilibrative-nucleoside-transporter-1-gene-expression-is-associated-with-gemcitabine-efficacy-in-advanced-leiomyosarcoma-and-angiosarcoma
#1
Bruno Vincenzi, Silvia Stacchiotti, Paola Collini, Francesco Pantano, Carla Rabitti, Giuseppe Perrone, Michele Iuliani, Alfonso Baldi, Giuseppe Badalamenti, Roberta Sanfilippo, Daniele Santini, Andrea Onetti Muda, Alessandro Gronchi, Paolo Casali, Angelo Paolo Dei Tos, Giuseppe Tonini
BACKGROUND: The expression of human equilibrative nucleoside transporter 1 (hENT1), the major gemcitabine transporter into cells, has been thoroughly investigated as a predictive marker of response to gemcitabine in pancreatic cancer and biliary tract cancers. Since gemcitabine is widely used in the treatment of leiomyosarcoma and angiosarcoma, we investigated the correlation between hENT1 expression and gemcitabine efficacy in these sarcoma subtypes. METHODS: We retrospectively identified 71 patients affected by advanced angiosarcoma (26) or leiomyosarcoma (45) treated within five Italian referral centres for sarcoma; among them, 49 patients (15 angiosarcoma, 34 leiomyosarcoma) were treated with gemcitabine...
June 22, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28635650/the-application-of-heptamethine-cyanine-dye-dz-1-and-indocyanine-green-for-imaging-and-targeting-in-xenograft-models-of-hepatocellular-carcinoma
#2
Caiqin Zhang, Yong Zhao, He Zhang, Xue Chen, Ningning Zhao, Dengxu Tan, Hai Zhang, Changhong Shi
Near infrared fluorescence (NIRF) imaging has strong potential for widespread use in noninvasive tumor imaging. Indocyanine green (ICG) is the only Food and Drug Administration (FDA) -approved NIRF dye for clinical diagnosis; however, it is unstable and poorly targets tumors. DZ-1 is a novel heptamethine cyanine NIRF dye, suitable for imaging and tumor targeting. Here, we compared the fluorescence intensity and metabolism of DZ-1 and ICG. Additionally, we assayed their specificities and abilities to target tumor cells, using cultured hepatocellular carcinoma (HCC) cell lines, a nude mouse subcutaneous xenograft model of liver cancer, and a rabbit orthotopic transplantation model...
June 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28634650/a-randomized-phase-ii-study-of-gemcitabine-plus-z-360-a-cck2-receptor-selective-antagonist-in-patients-with-metastatic-pancreatic-cancer-as-compared-with-gemcitabine-plus-placebo
#3
Makoto Ueno, Chung Pin Li, Masafumi Ikeda, Hiroshi Ishii, Nobumasa Mizuno, Taketo Yamaguchi, Tatsuya Ioka, Do Youn Oh, Wataru Ichikawa, Takuji Okusaka, Yutaka Matsuyama, Daichi Arai, Li Tzong Chen, Young Suk Park, Junji Furuse
BACKGROUND: We investigated the efficacy and safety of 60, 120, or 240 mg of Z-360, which is a highly potent cholecystokinin2-receptor-selective antagonist, combined with gemcitabine in patients with metastatic pancreatic cancer. METHODS: Patients were randomly assigned in a 1:1:1:1 ratio to one of four treatment groups. Patients received 1000 mg/m(2) gemcitabine for each cycle and Z-360 tablets of 60 mg (GZ 60 mg group), 120, 240 mg or placebo tablets (Gem group) orally twice daily...
June 20, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28633088/second-line-with-oxaliplatin-or-irinotecan-based-chemotherapy-for-gemcitabine-pretreated-pancreatic-cancer-a-systematic-review
#4
REVIEW
Fausto Petrelli, Alessandro Inno, Antonio Ghidini, Lorenza Rimassa, Gianluca Tomasello, Roberto Labianca, Sandro Barni
BACKGROUND: oxaliplatin (OXA)- and irinotecan (IRI)-based chemotherapies are the most frequently used salvage regimens in patients with metastatic pancreatic cancer (PC) after first-line gemcitabine-based therapy. There are no prospective comparisons of these regimens in this setting. We conducted a systematic review of published trials to compare the efficacy of these treatments. METHODS: studies that enrolled patients with stage IV disease receiving chemotherapy with OXA or IRI plus fluoropyrimidines were identified using electronic databases (Pubmed, Embase, SCOPUS, CINAHL, Web of Science and Cochrane Library)...
June 17, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28630778/female-urethral-diverticulum-carcinoma-a-case-report-and-literature-review
#5
Ryo Kasahara, Tadashi Tabei, Yukio Tsuura, Kazuki Kobayashi
A 48-year-old woman with a history of voiding difficulty visited our hospital. Magnetic resonance imaging revealed a periurethral tumor, which was pathologically diagnosed as an adenocarcinoma via transperineal needle biopsy. Radical cystectomy and urethrectomy were performed, and the urinary tract was reconstructed using an ileal conduit. Pathological examination of a resected specimen confirmed adenocarcinoma of the urethral diverticulum. The patient received adjuvant gemcitabine and cisplatin chemotherapy...
2017: Case Reports in Urology
https://www.readbyqxmd.com/read/28627455/gemcitabine-vitamin-e-conjugates-synthesis-characterization-entrapment-into-nanoemulsions-and-in-vitro-deamination-and-antitumor-activity
#6
Ahmed Abu-Fayyad, Sami Nazzal
Gemcitabine is the first line therapy for pancreatic cancer. It is, however, extensively metabolized to the inactive form by deamination enzymatic reaction. Conjugation of gemcitabine with fatty acids on its 4-amino group was found to protect it from deamination deactivation reaction. The objective of the present study was to test the in-vitro anticancer activity of gemcitabine conjugated to the γ-tocotrienol isomer of vitamin E against pancreatic tumor cells. This objective was based on reported studies in which it was demonstrated that free tocotrienol isomers of vitamin E can potentiate the anticancer activity of gemcitabine...
June 13, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28626793/acidic-ph-targeted-chitosan-capped-mesoporous-silica-coated-gold-nanorods-facilitate-detection-of-pancreatic-tumors-via-multispectral-optoacoustic-tomography
#7
Matthew R Zeiderman, Desiree E Morgan, John D Christein, William E Grizzle, Kelly M McMasters, Lacey R McNally
We present a cancer nanomedicine based on acidic pH targeted gold nanorods designed for multispectral optoacoustic tomography (MSOT). We have designed gold nanorods coated with mesoporous silica and subsequently capped with chitosan (CMGs). We have conjugated pH-sensitive variant 7 pHLIP peptide to the CMGs (V7-CMG) to provide targeting specificity to the acidic tumor microenvironment. In vitro, treatment of S2VP10 and MiaPaca2 cells with V7-CMG containing gemcitabine resulted in significantly greater cytotoxicity with 97% and 96...
July 11, 2016: ACS Biomaterials Science & Engineering
https://www.readbyqxmd.com/read/28626402/effect-of-the-combination-of-trabectedin-and-pegylated-liposomal-doxorubicin-in-a-brca2-mutation-carrier-with-recurrent-platinum-sensitive-ovarian-cancer
#8
María Jesús Rubio Pérez
INTRODUCTION: The current standard of care for ovarian cancer is optimal cytoreduction with adjuvant chemotherapy based on a platinum/taxane combination. Although the response rate to this therapy is high, most patients ultimately relapse. Response to second-line therapy and prognosis are linked to the platinum-free interval (PFI); when both improve, the PFI increases. As a result, there is an increasing interest in the PFI extension strategies including platinum-free combinations. CASE PRESENTATION: A 50-year-old postmenopausal woman presented with ovarian serous carcinoma with peritoneal carcinomatosis...
May 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28625313/cancer-de-l%C3%A2-ovaire-la-rechute-pr%C3%A3-coce
#9
Patricia Pautier, Elsa Kalbacher, Thibault de la Motte Rouge, Franck Bonnetain, Anne Lesoin
EARLY RELAPSE: Early relapse (primary or secondary) is defined by relapse of disease less than 6 months before the last infusion of chemotherapy (with a platinum compound). There is no carcinological surgical indication. Disease should be treated with a non-platinum single agent (pegylated liposomal doxorubicin, weekly paclitaxel, gemcitabine or topotecan). Bevacizumab can be added if patients have not already received it (level of proof 1, grade A).
May 2017: Bulletin du Cancer
https://www.readbyqxmd.com/read/28625029/-a-case-of-squamous-cell-carcinoma-in-bladder-diverticulum-producing-granulocyte-colony-stimulating-factor
#10
Koichi Uemura, Kazuhiro Namura, Susumu Umemoto, Osamu Matsubara, Koichi Udagawa
We report a rare case of squamous cell carcinoma (SCC) in bladder diverticulum producing granulocyte colony stimulating factor (G-CSF). A 59-year-old man complaining of hematuria and right hip pain was admitted with a large cancer in the bladder diverticulum. His laboratory data showed leukocytosis of 20,100/ μ l (neutrophils : 92%) with an elevated G-CSF of 76. 6 pg/ml in the peripheral blood. After neoadjuvant chemotherapy (gemcitabine and cisplatin), radical cystectomy was performed to normalize serum leukocytosis and G-CSF...
May 2017: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28624910/clinical-pharmacology-and-clinical-trials-of-ribonucleotide-reductase-inhibitors-is-it-a-viable-cancer-therapy
#11
REVIEW
Mukundan Baskar Mannargudi, Subrata Deb
PURPOSE: Ribonucleotide reductase (RR) enzymes (RR1 and RR2) play an important role in the reduction of ribonucleotides to deoxyribonucleotides which is involved in DNA replication and repair. Augmented RR activity has been ascribed to uncontrolled cell growth and tumorigenic transformation. METHODS: This review mainly focuses on several biological and chemical RR inhibitors (e.g., siRNA, GTI-2040, GTI-2501, triapine, gemcitabine, and clofarabine) that have been evaluated in clinical trials with promising anticancer activity from 1960's till 2016...
June 17, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28619740/gamma-delta-t-cell-lymphoma-of-skin-eye-and-brain-presenting-with-visual-loss
#12
Nicholas Jones, Adam Gibb, Luciane Irion, Sarah Coupland
A young man presented with rapid, predominantly right-sided visual loss with a background of multifocal skin lesions. Visual acuity was right hand movements, left 6/5 Snellen, deteriorating to 6/38. He showed panuveitis with bilateral multifocal retinal infiltrates and retinal vasculitis. Multifocal brain lesions were identified. Biopsy of both skin and vitreous showed atypical lymphocytes, and immunohistochemistry confirmed T-cell lymphoma of gamma-delta subtype. Management with the CODOX-M/IVAC polychemotherapy regimen achieved rapid response including resolution of intraocular changes and substantial improvement of visual acuity to right 6/7...
June 15, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28619283/preparation-and-in%C3%A2-vitro-assessment-of-wet-spun-gemcitabine-loaded-polymeric-fibers-towards-localized-drug-delivery-for-the-treatment-of-pancreatic-cancer
#13
Samantha J Wade, Amanda Zuzic, Javad Foroughi, Sepehr Talebian, Morteza Aghmesheh, Simon E Moulton, Kara L Vine
BACKGROUND/OBJECTIVES: There has been minimal improvement in the prognosis of pancreatic cancer cases in the past 3 decades highlighting the crucial need for more effective therapeutic approaches. A drug delivery system capable of locally delivering high concentrations of chemotherapeutics directly at the site of the tumor is clearly required. The aim of this study was to fabricate and characterize the biophysical properties of gemcitabine-eluting wet-spun polymeric fibers for localized drug delivery applications...
June 3, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28618762/antiinflammatory-and-antioxidant-effects-of-gemcitabine-in-collagen-induced-arthritis-model
#14
Adile Ferda Dağli, Ahmet Karataş, Cemal Orhan, Mehmet Tuzcu, Metin Özgen, Kazım Şahin, Süleyman Serdar Koca
BACKGROUND/AIM: Gemcitabine (GEM) has antiproliferative effects on lymphocytes, which are potent pathogenic actors of rheumatoid arthritis (RA). The aim of the study was to investigate the therapeutic potential of GEM on collagen-induced arthritis (CIA). MATERIALS AND METHODS: Arthritis was induced by the intradermal injection of chicken type II collagen with incomplete Freund's adjuvant into albino Wistar rats. Doses of 5 and 20 mg/kg GEM were administered twice a week after the 14th day, which marked the onset the arthritis...
June 12, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28616794/long-term-survival-after-multidisciplinary-therapy-for-residual-gallbladder-cancer-with-peritoneal-dissemination-a-case-report
#15
Daisuke Kuga, Tomoki Ebata, Yukihiro Yokoyama, Tsuyoshi Igami, Gen Sugawara, Takashi Mizuno, Junpei Yamaguchi, Masato Nagino
BACKGROUND: Although surgical resection is the only curative treatment for gallbladder cancer (GBC), concomitant peritoneal dissemination is considered far beyond the scope of resection. We report a long-term survivor with a residual GBC with multiple peritoneal disseminations who underwent an extended resection after effective chemotherapy. CASE PRESENTATION: A 59-year-old male underwent an open cholecystectomy for Mirizzi syndrome at a local hospital. Because of severe inflammation, the gallbladder was perforated during surgery, ending in a piecemeal resection...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28616753/gemcitabine-monotherapy-in-patients-with-heavily-treated-nasopharyngeal-cancer-a-case-series
#16
Tomohiro Enokida, Shinya Uozumi, Takao Fujisawa, Yuri Ueda, Susumu Okano, Makoto Tahara
BACKGROUND: Although gemcitabine is thought to play a critical role in the treatment of nasopharyngeal cancer, no research to evaluate the efficacy and toxicity of gemcitabine monotherapy has been conducted in Japan. METHODS: We retrospectively reviewed eight nasopharyngeal carcinoma patients treated with gemcitabine monotherapy at National Cancer Center Hospital East between May 2015 and August 2016. The main eligibility criteria were (1) histopathologically proven NPC; (2) tumor recurrence or an initial M1 TNM stage diagnosis; (3) at least two other types of systemic chemotherapy prior to gemcitabine; (4) no other active malignant tumor during treatment...
June 14, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28612225/prolonged-survival-in-patients-with-breast-cancer-and-a-history-of-brain-metastases-results-of-a-preplanned-subgroup-analysis-from-the-randomized-phase-iii-beacon-trial
#17
Javier Cortés, Hope S Rugo, Ahmad Awada, Chris Twelves, Edith A Perez, Seock-Ah Im, Patricia Gómez-Pardo, Lee S Schwartzberg, Veronique Diéras, Denise A Yardley, David A Potter, Audrey Mailliez, Alvaro Moreno-Aspitia, Jin-Seok Ahn, Carol Zhao, Ute Hoch, Mary Tagliaferri, Alison L Hannah, Joyce O'Shaughnessy
PURPOSE: Conventional chemotherapy has limited activity in patients with breast cancer and brain metastases (BCBM). Etirinotecan pegol (EP), a novel long-acting topoisomerase-1 inhibitor, was designed using advanced polymer technology to preferentially accumulate in tumor tissue including brain metastases, providing sustained cytotoxic SN38 levels. METHODS: The phase 3 BEACON trial enrolled 852 women with heavily pretreated locally recurrent or metastatic breast cancer between 2011 and 2013...
June 13, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28612202/management-of-unresectable-locally-advanced-pancreatic-adenocarcinoma
#18
REVIEW
M Salgado, S Arévalo, O Hernando, A Martínez, R Yaya, M Hidalgo
The diagnosis of unresectable locally advanced pancreatic adenocarcinoma (LAPC) requires confirmation, through imaging tests, of the unfeasibility of achieving a complete surgical resection, in the absence of metastatic spread. The increase in overall survival (OS), together with an appropriate symptom management is the therapeutic target in LAPC, maintaining an acceptable quality of life and, if possible, increasing the time until the appearance of metastasis. Chemoradiation (CRT) improves OS compared to best support treatment or radiotherapy (RT) but with greater toxicity...
June 13, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28611425/pancreatic-adenocarcinoma-response-to-chemotherapy-enhanced-with-non-invasive-radio-frequency-evaluated-via-an-integrated-experimental-computational-approach
#19
Matthew J Ware, Louis T Curtis, Min Wu, Jason C Ho, Stuart J Corr, Steven A Curley, Biana Godin, Hermann B Frieboes
Although chemotherapy combined with radiofrequency exposure has shown promise in cancer treatment by coupling drug cytotoxicity with thermal ablation or thermally-induced cytotoxicity, limited access of the drug to tumor loci in hypo-vascularized lesions has hampered clinical application. We recently showed that high-intensity short-wave capacitively coupled radiofrequency (RF) electric-fields may reach inaccessible targets in vivo. This non-invasive RF combined with gemcitabine (Gem) chemotherapy enhanced drug uptake and effect in pancreatic adenocarcinoma (PDAC), notorious for having poor response and limited therapeutic options, but without inducing thermal injury...
June 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28609792/-systematic-review-on-conservative-treatment-options-in-non-muscle-invasive-bladder-cancer-patients-refractory-to-bacillus-calmette-gu%C3%A3-rin-instillation-therapy
#20
Thomas Martini, Felix Wezel, Niklas Löbig, Michael J Mitterberger, Daniela Colleselli
Background Adjuvant Bacillus Calmette-Guérin (BCG) intravesical instillation is the recommended standard treatment in patients with high-risk non-muscle-invasive bladder cancer (NMIBC). However, a significant proportion of patients fail treatment, and radical cystectomy (RC) is the subsequent gold standard. On the other hand, there is an unmet need for conservative alternatives for patients who are unfit or unwilling to undergo surgery. This study aimed to identify conservative treatment options in NMIBC patients after BCG failure...
June 13, 2017: Aktuelle Urologie
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