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https://www.readbyqxmd.com/read/28329611/terap%C3%A3%C2%AAutica-fotodin%C3%A3-mica-com-metil-aminolevulinato-no-tratamento-de-les%C3%A3%C2%B5es-refract%C3%A3-rias-de-micose-fung%C3%A3-ide-resposta-cl%C3%A3-nica-e-histol%C3%A3-gica-mantida-em-dois-doentes
#1
Ana Isabel Teixeira, João Maia E Silva
According to the guidelines proposed by the National Comprehensive Cancer Network, early-stage Mycosis Fungoides (MF) should be treated with skin-directed therapies such as topical steroids or retinoids, topical chemotherapy (carmustin and nitrogen mustard), photochemotherapy, and superficial radiotherapy. Patients with refractory lesions to these therapeutic options are particularly challenging. Photodynamic Therapy (PDT) has been approved to treat cutaneous neoplastic and pre-neoplastic lesions such as superficial basal cell carcinoma, Bowen disease and actinic keratosis...
September 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28254657/the-diverse-roles-of-glutathione-associated-cell-resistance-against-hypericin-photodynamic-therapy
#2
Theodossis A Theodossiou, Cathrine E Olsen, Marte Jonsson, Andreas Kubin, John S Hothersall, Kristian Berg
The diverse responses of different cancers to treatments such as photodynamic therapy of cancer (PDT) have fueled a growing need for reliable predictive markers for treatment outcome. In the present work we have studied the differential response of two phenotypically and genotypically different breast adenocarcinoma cell lines, MCF7 and MDA-MB-231, to hypericin PDT (HYP-PDT). MDA-MB-231 cells were 70% more sensitive to HYP PDT than MCF7 cells at LD50. MCF7 were found to express a substantially higher level of glutathione peroxidase (GPX4) than MDA-MB-231, while MDA-MB-231 differentially expressed glutathione-S-transferase (GSTP1), mainly used for xenobiotic detoxification...
February 24, 2017: Redox Biology
https://www.readbyqxmd.com/read/28248126/prospective-longitudinal-analysis-of-2-hydroxyglutarate-magnetic-resonance-spectroscopy-identifies-broad-clinical-utility-for-the-management-of-patients-with-idh-mutant-glioma
#3
Changho Choi, Jack M Raisanen, Sandeep K Ganji, Song Zhang, Sarah S McNeil, Zhongxu An, Akshay Madan, Kimmo J Hatanpaa, Vamsidhara Vemireddy, Christie A Sheppard, Dwight Oliver, Keith M Hulsey, Vivek Tiwari, Tomoyuki Mashimo, James Battiste, Samuel Barnett, Christopher J Madden, Toral R Patel, Edward Pan, Craig R Malloy, Bruce E Mickey, Robert M Bachoo, Elizabeth A Maher
Purpose Proton magnetic resonance spectroscopy (MRS) of the brain can detect 2-hydroxyglutarate (2HG), the oncometabolite produced in neoplasms harboring a mutation in the gene coding for isocitrate dehydrogenase ( IDH). We conducted a prospective longitudinal imaging study to determine whether quantitative assessment of 2HG by MRS could serve as a noninvasive clinical imaging biomarker for IDH-mutated gliomas. Patients and Methods 2HG MRS was performed in 136 patients using point-resolved spectroscopy at 3 T in parallel with standard clinical magnetic resonance imaging and assessment...
November 20, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28243088/targeted-concurrent-and-sequential-delivery-of-chemotherapeutic-and-antiangiogenic-agents-to-the-brain-by-using-drug-loaded-nanofibrous-membranes
#4
Yuan-Yun Tseng, Tao-Chieh Yang, Yi-Chuan Wang, Wei-Hwa Lee, Tzu-Min Chang, Yi-Chuan Kau, Shih-Jung Liu
Glioblastoma is the most frequent and devastating primary brain tumor. Surgery followed by radiotherapy with concomitant and adjuvant chemotherapy is the standard of care for patients with glioblastoma. Chemotherapy is ineffective, because of the low therapeutic levels of pharmaceuticals in tumor tissues and the well-known tumor-cell resistance to chemotherapy. Therefore, we developed bilayered poly(d,l)-lactide-co-glycolide nanofibrous membranes that enabled the sequential and sustained release of chemotherapeutic and antiangiogenic agents by employing an electrospinning technique...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28204914/salvage-therapy-with-bendamustine-for-temozolomide-refractory-recurrent-anaplastic-gliomas-a-prospective-phase-ii-trial
#5
Marc C Chamberlain, Howard Colman, Bryan T Kim, Jeffrey Raizer
There is no standard therapy for recurrent anaplastic glioma (AG). Salvage therapies include alkylator-based chemotherapy, re-resection with or without carmustine implants, re-irradiation and bevacizumab. Bendamustine is a novel bifunctional alkylator with CNS penetration never previously evaluated in AG. Assess response and toxicity of bendamustine in recurrent AG in a phase II trial. Adults with radiation and temozolomide refractory recurrent AG were treated with bendamustine. A cycle of bendamustine was defined as two consecutive days of treatment (100 mg/m(2)/day) administered once every 4 weeks...
February 16, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28199478/evaluation-of-o6-benzylguanine-potentiated-topical-carmustine-for-mycosis-fungoides-a-phase-1-2-clinical-trial
#6
Joselin D Tacastacas, Derek V Chan, Sean Carlson, Stanton L Gerson, Afshin Dowlati, Pingfu Fu, Kurt Lu, Sarah Groft, Julie Rosenjack, Kord Honda, Thomas McCormick, Kevin D Cooper
Importance: In a phase 1 trial, single-dose O6-benzylguanine with topical carmustine for patients with early stage (stage IA through stage IIA) cutaneous T-cell lymphoma, mycosis fungoides (MF) type, resulted in clinical responses proportional to inhibition of O6-alkylguanine DNA alkyltransferase activity, but a maximum tolerated dose (MTD) was not reached. Objective: To determine whether dose escalation of carmustine in combination with dual-dose O6-benzylguanine to prolong alkyltransferase inhibition could reach an MTD...
February 15, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28155074/mathematical-modelling-of-convection-enhanced-delivery-of-carmustine-and-paclitaxel-for-brain-tumour-therapy
#7
Wenbo Zhan, Davis Yohanes Arifin, Timothy Ky Lee, Chi-Hwa Wang
PURPOSE: Convection enhanced delivery (CED) is a promising method of anticancer treatment to bypass the blood-brain barrier. This paper is aimed to study drug transport under different CED operating conditions. METHODS: The convection enhanced delivery of chemotherapeutics to an intact and a remnant brain tumour after resection is investigated by means of mathematical modelling of the key physical and physiological processes of drug transport. Realistic models of brain tumour and its holding tissue are reconstructed from magnetic resonance images...
February 2, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28143714/chloroethylating-nitrosoureas-in-cancer-therapy-dna-damage-repair-and-cell-death-signaling
#8
REVIEW
Teodora Nikolova, Wynand P Roos, Oliver H Krämer, Herwig M Strik, Bernd Kaina
Chloroethylating nitrosoureas (CNU), such as lomustine, nimustine, semustine, carmustine and fotemustine are used for the treatment of malignant gliomas, brain metastases of different origin, melanomas and Hodgkin disease. They alkylate the DNA bases and give rise to the formation of monoadducts and subsequently interstrand crosslinks (ICL). ICL are critical cytotoxic DNA lesions that link the DNA strands covalently and block DNA replication and transcription. As a result, S phase progression is inhibited and cells are triggered to undergo apoptosis and necrosis, which both contribute to the effectiveness of CNU-based cancer therapy...
January 29, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28112752/carmustine-replacement-in-intensive-chemotherapy-preceding-reinjection-of-autologous-hscs-in-hodgkin-and-non-hodgkin-lymphoma-a-review
#9
REVIEW
G Damaj, J Cornillon, K Bouabdallah, R Gressin, S Vigouroux, T Gastinne, F Ranchon, H Ghésquières, G Salles, I Yakoub-Agha, E Gyan
High-dose chemotherapy preceding autologous hematopoietic stem cell transplantation (auto-HSCT) is one treatment option for patients with Hodgkin (HL) or non-Hodgkin lymphoma (NHL). The most frequently used intensive chemotherapy is a combination of carmustine (BCNU), etoposide, cytarabine and melphalan (BEAM). However, BCNU is consistently in short supply, and there has been a recent dramatic increase in its cost, necessitating the utilization of conditioning alternatives. The busulfan-based conditioning regimen known as the busulfan-cyclophosphamide-etoposide (BuCyE) combination is the second most-studied conditioning regimen worldwide after BEAM, and it exhibits a benefit/risk ratio that is comparable to that of BEAM...
January 23, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28110183/noncovalent-interaction-assisted-fullerene-for-the-transportation-of-some-brain-anticancer-drugs-a-theoretical-study
#10
Pabitra Narayan Samanta, Kalyan Kumar Das
The treatment of brain cancer like glioblastoma multiforme often uses chemotherapeutic drugs like temozolomide, procarbazine, carmustine, and lomustine. Fullerene loaded with these drugs help to cross the blood brain barriers. The adsorptions of the four drug molecules on the surface of the fullerene are studied mostly by using density functional theory (DFT) based method at the M06-2X/6-31G(d) level of calculations. In all four cases, the estimated interactions are noncovalent type and the average adsorption energy lies in between -5 and -11kcal/mol in the gas phase...
January 8, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28101911/comparison-of-cbv-beam-and-beac-high-dose-chemotherapy-followed-by-autologous-hematopoietic-stem-cell-transplantation-in-non-hodgkin-lymphoma-efficacy-and-toxicity
#11
Youwu Shi, Peng Liu, Shengyu Zhou, Jianliang Yang, Xiaohong Han, Xiaohui He, Changgong Zhang, Lin Gui, Yan Qin, Sheng Yang, Liya Zhao, Jiarui Yao, Bo Jia, Shuxiang Zhang, Yan Sun, Yuankai Shi
AIM: Limited data are available to guide the choice of conditioning regimen before autologous hematopoietic stem cell transplantation (AHSCT) for patients with lymphoma. METHODS: We analyzed 129 non-Hodgkin lymphoma patients who underwent AHSCT from 1996 to 2013 using the most common regimens: CBV (cyclophosphamide, carmustine and etoposide; n = 16), BEAM (carmustine, etoposide, cytarabine and melphalan; n = 36) and BEAC (carmustine, etoposide, cytarabine and cyclophosphamide; n = 77)...
January 19, 2017: Asia-Pacific Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28042707/clinical-experience-with-drug-delivery-systems-as-tools-to-decrease-the-toxicity-of-anticancer-chemotherapeutic-agents
#12
Raul C Maranhão, Carolina G Vital, Thauany M Tavoni, Silvia R Graziani
The toxicity of chemotherapeutic agents, resulting from their low pharmacological index, introduces considerable discomfort and risk to cancer patients. Among several strategies to reduce the toxicity of chemotherapeutic agents, targeted drug delivery is the most promising one. Areas covered: Liposomes, micelles, albumin-based, polymeric, dendritic and lipid core nanoparticles have been used as carriers to concentrate anticancer drugs in neoplastic tissues, and clinical studies of those preparations are reviewed...
January 1, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27984652/a-multi-institutional-analysis-of-peritransplantation-radiotherapy-in-patients-with-relapsed-refractory-hodgkin-lymphoma-undergoing-autologous-stem-cell-transplantation
#13
Sarah A Milgrom, Shekeab Jauhari, John P Plastaras, Yago Nieto, Bouthaina S Dabaja, Chelsea C Pinnix, Grace L Smith, Pamela K Allen, J Nicholas Lukens, Amit Maity, Yasuhiro Oki, Michelle A Fanale, Sunita D Nasta
BACKGROUND: No consensus exists regarding the use of radiotherapy (RT) in conjunction with high-dose chemotherapy and autologous stem cell transplantation (HDC/ASCT) for patients with relapsed/refractory classical Hodgkin lymphoma (HL). The objectives of the current study were to characterize practice patterns and assess the efficacy and toxicity of RT at 2 major transplantation centers. METHODS: Eligible patients underwent HDC/ASCT from 2006 through 2015 using the combination of either carmustine (BCNU), etoposide, cytarabine, and melphalan (BEAM) or cyclophosphamide, BCNU, and etoposide (CBV)...
December 16, 2016: Cancer
https://www.readbyqxmd.com/read/27920506/polifeprosan-20-3-85-carmustine-slow-release-wafer-in-malignant-glioma-patient-selection-and-perspectives-on-a-low-burden-therapy
#14
REVIEW
Lawrence Kleinberg
Polifeprosan 20 with carmustine (GLIADEL(®)) polymer implant wafer is a biodegradable compound containing 3.85% carmustine (BCNU, bischloroethylnitrosourea) implanted in the brain at the time of planned tumor surgery, which then slowly degrades to release the BCNU chemotherapy directly into the brain thereby bypassing the blood-brain barrier. Carmustine implant wafers were demonstrated to improve survival in randomized placebo-controlled trials in patients undergoing a near total resection of newly diagnosed or recurrent malignant glioma...
2016: Patient Preference and Adherence
https://www.readbyqxmd.com/read/27903197/upfront-boost-gamma-knife-leading-edge-radiosurgery-to-flair-mri-defined-tumor-migration-pathways-in-174-patients-with-glioblastoma-multiforme-a-15-year-assessment-of-a-novel-therapy
#15
Christopher M Duma, Brian S Kim, Peter V Chen, Marianne E Plunkett, Ralph Mackintosh, Marlon S Mathews, Ryan M Casserly, Gustavo A Mendez, Daniel J Furman, Garrett Smith, Nathan Oh, Chad A Caraway, Ami R Sanathara, Robert O Dillman, Azzurra-Sky Riley, David Weiland, Lian Stemler, Ruslana Cannell, Daniela Alexandru Abrams, Alexa Smith, Christopher M Owen, Burton Eisenberg, Michael Brant-Zawadzki
OBJECTIVE Glioblastoma multiforme (GBM) is composed of cells that migrate through the brain along predictable white matter pathways. Targeting white matter pathways adjacent to, and leading away from, the original contrast-enhancing tumor site (termed leading-edge radiosurgery [LERS]) with single-fraction stereotactic radiosurgery as a boost to standard therapy could limit the spread of glioma cells and improve clinical outcomes. METHODS Between December 2000 and May 2016, after an initial diagnosis of GBM and prior to or during standard radiation therapy and carmustine or temozolomide chemotherapy, 174 patients treated with radiosurgery to the leading edge (LE) of tumor cell migration were reviewed...
December 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27868149/topical-carmustine-as-monotherapy-or-as-multimodality-therapy-for-folliculotropic-mycosis-fungoides
#16
Kelly M MacArthur, Neha Jariwala, Ellen J Kim, Alain H Rook
is missing (Short communication).
March 10, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/27821713/quantitative-analyses-of-synergistic-responses-between-cannabidiol-and-dna-damaging-agents-on-the-proliferation-and-viability-of-glioblastoma-and-neural-progenitor-cells-in-culture
#17
Liting Deng, Lindsay Ng, Tatsuya Ozawa, Nephi Stella
Evidence suggests that the nonpsychotropic cannabis-derived compound, cannabidiol (CBD), has antineoplastic activity in multiple types of cancers, including glioblastoma multiforme (GBM). DNA-damaging agents remain the main standard of care treatment available for patients diagnosed with GBM. Here we studied the antiproliferative and cell-killing activity of CBD alone and in combination with DNA-damaging agents (temozolomide, carmustine, or cisplatin) in several human GBM cell lines and in mouse primary GBM cells in cultures...
January 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/27646474/irgd-mediated-core-shell-nanoparticles-loading-carmustine-and-o-6-benzylguanine-for-glioma-therapy
#18
Chang Liu, Sen Yao, Xuqian Li, Feng Wang, Yanyan Jiang
iRGD (internalizing RGD) with high affinity to αν integrins was reported to enhance tumor penetrability by binding to neuropilin-1 (NRP-1). Based on our previous study, chitosan surface-modified poly (lactide-co-glycolides) nanoparticles (PLGA/CS NPs), loaded with carmustine (BCNU) and its sensitizer (O(6)-benzylguanine, BG) showed stronger anti-tumor effect than free drugs. In present study, PLGA/CS NPs (NPs) with core-shell structure were prepared and modified with iRGD or mPEG. F98, C6 or U87 cell lines with different receptors levels were selected for in vitro and in vivo studies...
October 6, 2016: Journal of Drug Targeting
https://www.readbyqxmd.com/read/27628679/reduction-of-atherosclerotic-lesions-by-the-chemotherapeutic-agent-carmustine-associated-to-lipid-nanoparticles
#19
Elaine N Daminelli, Ana E M Martinelli, Adriana Bulgarelli, Fatima R Freitas, Raul C Maranhão
PURPOSE: After injection in the bloodstream, a lipid nanoparticle (LDE) resembling low-density lipoprotein (LDL) concentrates in atherosclerotic lesions of cholesterol-fed rabbits. Here, rabbits with atherosclerosis were treated with carmustine, an antiproliferative agent used in cancer chemotherapy, associated to LDE to investigate the effects on the lesions. METHODS: Twenty-seven male New Zealand rabbits were fed a 1 % cholesterol diet for 8 weeks. After 4 weeks nine animals were treated with intravenous saline solution, nine with intravenous LDE alone, and nine with intravenous LDE-carmustine (4 mg/kg, weekly for 4 weeks)...
October 2016: Cardiovascular Drugs and Therapy
https://www.readbyqxmd.com/read/27614867/infusion-reactions-are-common-after-high-dose-carmustine-in-beam-chemotherapy-and-are-not-reduced-by-lengthening-the-time-of-administration
#20
Sarah Perreault, Julie Baker, Erin Medoff, Kathryn Pratt, Francine Foss, Iris Isufi, Stuart Seropian, Dennis L Cooper
PURPOSE: Carmustine (BCNU) is used in the conditioning regimens BEAM and CBV for autologous stem cell transplantation. Carmustine-related infusion reactions, while not described in the BEAM literature, occurred in 95 % of patients who received CBV. The most common symptoms include flushing, facial pain, headache, and hypotension. These reactions have been attributed to the absolute ethanol that is used in the reconstitution process or alternatively by a direct effect of carmustine. It is currently recommended that carmustine 300 mg/m(2) be infused over at least 100 min (3-5 mg/m(2)/min)...
January 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
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