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https://www.readbyqxmd.com/read/28522381/a-survival-analysis-with-identification-of-prognostic-factors-in-a-series-of-110-patients-with-newly-diagnosed-glioblastoma-pre-and-post-introduction-of-the-stupp-regimen-a-single-center-observational-study
#1
Rosanda Illic, Teresa Somma, Dragan Savic, Federico Frio, Mihailo Milicevic, Domenico Solari, Marina Nikitovic, Slobodan Lavrnic, Savo Raicevic, Snezana Milosevic, Luigi Maria Cavallo, Paolo Cappabianca, Danica Grujicic
BACKGROUND: Current treatment protocol in GBM is based on maximal safe resection followed by Stupp protocol. Survival outcomes in cancer can vary in different population groups and outcomes can be conditioned by several factors. In Serbia Temozolomide has been introduced as adjuvant therapy only in 2011. The aims of this study are to confirm the efficacy and safety of Stupp protocol on both OS and PFS and evaluate the influence of the prognostic factors in one of the largest series of patients with GBM, treated over a 2-year period...
May 15, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28504828/improvement-in-solvent-tolerance-by-exogenous-glycerol-in-pseudomonas-sp-bcnu-106
#2
Hye Jung Choi, Bo Ra Lim, Yeo Jin Park, Woo Hong Joo
Solvent hyper-tolerant Pseudomonas sp. BCNU 106 still has some underlying growth limitation in solvents. Therefore, efficient mass cultivation methods are needed to pursue its applications in biotechnology. Pseudomonas sp. BCNU 106 was cultured in a medium supplemented with 0.05 mol l(-1) glycerol and cell survival was monitored during its cultivation in the presence of 1% (v/v) toluene. Exogenously-supplemented glycerol provided more protection against damage caused by toluene stress and conferred higher solvent tolerance of Pseudomonas sp...
May 15, 2017: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/28484518/importance-of-biomarkers-in-glioblastomas-patients-receiving-local-bcnu-wafer-chemotherapy
#3
Steffi Urbschat, Christoph Sippl, Jana Engelhardt, Kai Kammers, Joachim Oertel, Ralf Ketter
BACKGROUND: To assess the influence of molecular markers with potential prognostic value to groups of patients with newly diagnosed glioblastoma patients were examined: group A with 36 patients (surgical resection plus standard combined chemoradiotherapy) and group B with 36 patients (surgical resection, standard combined chemoradiotherapy plus carmustine wafer implantation). Our aim was to determine chromosomal alterations, methylation status of MGMT, p15, and p16 (CDKN2A) in order to analyse the influence on patient survival time as well as radio- and chemotherapy responses...
2017: Molecular Cytogenetics
https://www.readbyqxmd.com/read/28396953/autologous-hematopoietic-stem-cell-transplantation-in-relapsing-remitting-multiple-sclerosis-comparison-with-secondary-progressive-multiple-sclerosis
#4
Bonaventura Casanova, Isidro Jarque, Francisco Gascón, Juan Carlos Hernández-Boluda, Francisco Pérez-Miralles, Javier de la Rubia, Carmen Alcalá, Jaime Sanz, Javier Mallada, Angeles Cervelló, Arantxa Navarré, María Carcelén-Gadea, Isabel Boscá, Sara Gil-Perotin, Carlos Solano, Miguel Angel Sanz, Francisco Coret
The main objective of our work is to describe the long-term results of myeloablative autologous hematopoietic stem cell transplant (AHSCT) in multiple sclerosis patients. Patients that failed to conventional therapies for multiple sclerosis (MS) underwent an approved protocol for AHSCT, which consisted of peripheral blood stem cell mobilization with cyclophosphamide and granulocyte colony-stimulating factor (G-CSF), followed by a conditioning regimen of BCNU, Etoposide, Ara-C, Melphalan IV, plus Rabbit Thymoglobulin...
April 10, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28395288/safety-and-effectiveness-of-bis-chloroethylnitrosourea-wafer-chemotherapy-in-elderly-patients-with-recurrent-glioblastoma
#5
Johann Klein, Tareq A Juratli, Yordan Radev, Dirk Daubner, Silke Soucek, Gabriele Schackert, Dietmar Krex
OBJECTIVE: To assess the safety and effectiveness of bis-chloroethylnitrosourea (BCNU) wafers in elderly patients with recurrent glioblastoma (GBM). METHODS: Patients with recurrent GBM operated on between 2007 and 2014 were divided into 3 groups: >65 years with BCNU wafer implantation, >65 years without BCNU wafer implantation, and ≤65 years with BCNU wafer implantation. We compared survival and complications. RESULTS: A total of 79 patients were identified: 24 in the older BCNU group (median age 68...
April 11, 2017: Oncology
https://www.readbyqxmd.com/read/28368547/the-survival-advantage-of-supratotal-resection-of-glioblastoma-using-selective-cortical-mapping-and-the-subpial-technique
#6
Yoshua Esquenazi, Elliott Friedman, Zheyu Liu, Jay-Jiguang Zhu, Sigmund Hsu, Nitin Tandon
BACKGROUND: A substantial body of evidence suggests that cytoreductive surgery is a prerequisite to prolonging survival in patients with glioblastoma (GBM). OBJECTIVE: To evaluate the safety and impact of "supratotal" resections beyond the zone of enhancement seen on magnetic resonance imaging scans, using a subpial technique. METHODS: We retrospectively evaluated 86 consecutive patients with primary GBM, managed by the senior author, using a subpial resection technique with or without carmustine (BCNU) wafer implantation...
March 23, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28334700/single-agent-pixantrone-as-a-bridge-to-autologous-stem-cell-transplantation-in-a-patient-with-refractory-diffuse-large-b-cell-lymphoma
#7
Lorena Appio, Carlo Landoni, Maria La Targia, Vanda Bertolli, Martina Chiarucci, Giovanni Crovetti, Elisabetta Vassenna, Giovanni Serio, Marco Bregni
Aggressive non-Hodgkin lymphoma is associated with poor long-term survival after relapse or resistance to chemotherapy. We report a case of aggressive non-Hodgkin lymphoma refractory to first-line R-CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone) and second-line R-DHAP (rituximab, dexamethasone, cytarabine, and cisplatin) chemotherapy treatments. The patient achieved remission with single-agent pixantrone, and received a consolidation with high-dose BEAM (BCNU, etoposide, cytarabine, and melphalan) chemotherapy and autologous stem cell transplantation...
2017: Chemotherapy
https://www.readbyqxmd.com/read/28319810/inhibitors-of-glut-slc2a-enhance-the-action-of-bcnu-and-temozolomide-against-high-grade-gliomas
#8
Alberto Azzalin, Giulia Nato, Elena Parmigiani, Francesca Garello, Annalisa Buffo, Lorenzo Magrassi
Glucose transport across glioblastoma membranes plays a crucial role in maintaining the enhanced glycolysis typical of high-grade gliomas and glioblastoma. We tested the ability of two inhibitors of the glucose transporters GLUT/SLC2A superfamily, indinavir (IDV) and ritonavir (RTV), and of one inhibitor of the Na/glucose antiporter type 2 (SGLT2/SLC5A2) superfamily, phlorizin (PHZ), in decreasing glucose consumption and cell proliferation of human and murine glioblastoma cells. We found in vitro that RTV, active on at least three different GLUT/SLC2A transporters, was more effective than IDV, a specific inhibitor of GLUT4/SLC2A4, both in decreasing glucose consumption and lactate production and in inhibiting growth of U87MG and Hu197 human glioblastoma cell lines and primary cultures of human glioblastoma...
April 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28267593/phase-ii-study-of-yttrium-90-ibritumomab-tiuxetan-plus-high-dose-bcnu-etoposide-cytarabine-and-melphalan-for-non-hodgkin-lymphoma-the-role-of-histology
#9
Amrita Y Krishnan, Joycelynne Palmer, Auayporn P Nademanee, Robert Chen, Leslie L Popplewell, Ni-Chun Tsai, James F Sanchez, Jennifer Simpson, Ricardo Spielberger, Dave Yamauchi, Stephen J Forman
Standard-dose (90)yttrium-ibritumomab tiuxetan (.4 mci/kg) together with high-dose BEAM (BCNU, etoposide, cytarabine, and melphalan) (Z-BEAM) has been shown to be a well-tolerated autologous hematopoietic stem cell transplantation preparative regimen for non-Hodgkin lymphoma. We report the outcomes of a single-center, single-arm phase II trial of Z-BEAM conditioning in high-risk CD20(+) non-Hodgkin lymphoma histologic strata: diffuse large B cell (DLBCL), mantle cell, follicular, and transformed. Robust overall survival and notably low nonrelapse mortality rates (...
March 4, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28254657/the-diverse-roles-of-glutathione-associated-cell-resistance-against-hypericin-photodynamic-therapy
#10
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/28218292/hyperthermia-and-chemotherapy-using-fe-salen-nanoparticles-might-impact-glioblastoma-treatment
#11
Makoto Ohtake, Masanari Umemura, Itaru Sato, Taisuke Akimoto, Kayoko Oda, Akane Nagasako, Jeong-Hwan Kim, Takayuki Fujita, Utako Yokoyama, Tomohiro Nakayama, Yujiro Hoshino, Mai Ishiba, Susumu Tokura, Masakazu Hara, Tomoya Muramoto, Sotoshi Yamada, Takatsugu Masuda, Ichio Aoki, Yasushi Takemura, Hidetoshi Murata, Haruki Eguchi, Nobutaka Kawahara, Yoshihiro Ishikawa
We previously reported that μ-oxo N,N'-bis(salicylidene)ethylenediamine iron [Fe(Salen)], a magnetic organic compound, has direct anti-tumor activity, and generates heat in an alternating magnetic field (AMF). We showed that Fe(Salen) nanoparticles are useful for combined hyperthermia-chemotherapy of tongue cancer. Here, we have examined the effect of Fe(Salen) on human glioblastoma (GB). Fe(Salen) showed in vitro anti-tumor activity towards several human GB cell lines. It inhibited cell proliferation, and its apoptosis-inducing activity was greater than that of clinically used drugs...
February 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28197307/synthesis-and-antitumor-activity-evaluation-of-a-novel-combi-nitrosourea-prodrug-bgcnu
#12
Yameng Wang, Ting Ren, Xinxin Lai, Guohui Sun, Lijiao Zhao, Na Zhang, Rugang Zhong
Chloroethylnitrosoureas (CENUs) are an important type of alkylating agent employed in the clinical treatment of cancer. However, the anticancer efficacy of CENUs is greatly decreased by a DNA repairing enzyme, O(6)-alkylguanine-DNA alkyltransferase (AGT), by preventing the formation of interstrand cross-links (ICLs). In this study, a combi-nitrosourea prodrug, namely, N-(2-chloroethyl)-N'-2-(O(6)-benzyl-9-guanine)ethyl-N-nitrosourea (BGCNU), which possesses an O(6)-benzylguanine (O(6)-BG) derivative and CENU pharmacophores simultaneously, was synthesized and evaluated for its ability to induce ICLs...
February 9, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28143954/early-treatment-intensification-with-r-ice-and-90y-ibritumomab-tiuxetan-zevalin-beam-stem-cell-transplantation-in-patients-with-high-risk-diffuse-large-b-cell-lymphoma-patients-and-positive-interim-pet-after-4-cycles-of-r-chop-14
#13
Mark Hertzberg, Maher K Gandhi, Judith Trotman, Belinda Butcher, John Taper, Amanda Johnston, Devinder Gill, Shir-Jing Ho, Gavin Cull, Keith Fay, Geoff Chong, Andrew Grigg, Ian D Lewis, Sam Milliken, William Renwick, Uwe Hahn, Robin Filshie, George Kannourakis, Anne-Marie Watson, Pauline Warburton, Andrew Wirth, John F Seymour, Michael S Hofman, Rodney J Hicks
In the treatment of diffuse large B-cell lymphoma, a persistently positive [(18)F]fluorodeoxyglucose positron emission tomography (PET) scan typically carries a poor prognosis. In this prospective multi-center phase II study, we sought to establish whether treatment intensification with R-ICE (rituximab, ifosfamide, carboplatin, and etoposide) chemotherapy followed by 90Y-ibritumomab tiuxetan-BEAM (BCNU, etoposide, cytarabine, and melphalan) for high-risk diffuse large B-cell lymphoma patients who are positive on interim PET scan after 4 cycles of R-CHOP-14 (rituximab, cyclophosphamide, doxorubicin, and prednisone) can improve 2-year progression-free survival from a historically unfavorable rate of 40% to a rate of 65%...
February 2017: Haematologica
https://www.readbyqxmd.com/read/28112752/carmustine-replacement-in-intensive-chemotherapy-preceding-reinjection-of-autologous-hscs-in-hodgkin-and-non-hodgkin-lymphoma-a-review
#14
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/28040063/pivotal-role-of-glutathione-depletion-in-enos-uncoupling-of-lps-treated-huvecs
#15
L Chen, E Liu, D Cao, S Li, C Xiao, M Xiong, Q Kou
The present study investigated the relationship between uncoupling of endothelial nitric oxide synthase (eNOS) and vascular endothelial cell (VEC) oxidative stress (OS) during sepsis and the role of eNOS glutathionylation in eNOS uncoupling of septic VECs. Human umbilical vein endothelial cells (HUVECs) cultured in vitro (EA.hy269 cell line) were incubated with Dulbecco's modified Eagle's medium (DMEM) (normal control group), lipopolysaccharide (LPS) (sepsis group), 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU) (glutathionylation group), and LPS+ dithiothreitol (DTT) (deglutathionylation sepsis group)...
November 30, 2016: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28011985/beeam-conditioning-with-bendamustine-replacing-bcnu-before-autologous-transplantation-is-safe-and-effective-in-lymphoma-patients
#16
Stefanie Gilli, Urban Novak, Behrouz Mansouri Taleghani, Gabriela M Baerlocher, Kurt Leibundgut, Yara Banz, Thilo Zander, Daniel Betticher, Thomas Egger, Daniel Rauch, Thomas Pabst
BEAM with BCNU is commonly used for conditioning treatment followed by autologous stem cell transplantation (ASCT). However, pulmonary toxicity and availability issues associated with BCNU prompted us to evaluate bendamustine-replacing BCNU (BeEAM). We analyzed 39 lymphoma patients receiving BeEAM conditioning with 200 mg/m(2) bendamustine at days -7 and -6. The median duration until neutrophil recovery was 11 days, and 15 days for platelet recovery (>20 g/L). The most common grade 3/4 non-hematologic toxicities comprised mucosal side effects (27 pts...
March 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28008595/defective-expression-of-apoptosis-related-molecules-in-multiple-sclerosis-patients-is-normalized-early-after-autologous-haematopoietic-stem-cell-transplantation
#17
G L V de Oliveira, A F Ferreira, E P L Gasparotto, S Kashima, D T Covas, C T Guerreiro, D G Brum, A A Barreira, J C Voltarelli, B P Simões, M C Oliveira, F A de Castro, K C R Malmegrim
Defective apoptosis might be involved in the pathogenesis of multiple sclerosis (MS). We evaluated apoptosis-related molecules in MS patients before and after autologous haematopoietic stem cell transplantation (AHSCT) using BCNU, Etoposide, AraC and Melphalan (BEAM) or cyclophosphamide (CY)-based conditioning regimens. Patients were followed for clinical and immunological parameters for 2 years after AHSCT. At baseline, MS patients had decreased proapoptotic BAD, BAX and FASL and increased A1 gene expression when compared with healthy counterparts...
March 2017: Clinical and Experimental Immunology
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
#18
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)...
April 15, 2017: 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
#19
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/27845303/new-insights-into-estrogenic-regulation-of-o-6-methylguanine-dna-methyltransferase-mgmt-in-human-breast-cancer-cells-co-degradation-of-er-%C3%AE-and-mgmt-proteins-by-fulvestrant-or-o-6-benzylguanine-indicates-fresh-avenues-for-therapy
#20
Ameya Paranjpe, Nathan I Bailey, Santhi Konduri, George C Bobustuc, Francis Ali-Osman, Mohd A Yusuf, Surendra R Punganuru, Hanumantha Rao Madala, Debasish Basak, Agm Mostofa, Kalkunte S Srivenugopal
Endocrine therapy using estrogen receptor-α (ER-α) antagonists for attenuating horm2one-driven cell proliferation is a major treatment modality for breast cancers. To exploit any DNA repair deficiencies associated with endocrine therapy, we investigated the functional and physical interactions of ER-α with O(6)-methylguanine DNA methyltransferase (MGMT), a unique DNA repair protein that confers tumor resistance to various anticancer alkylating agents. The ER-α -positive breast cancer cell lines (MCF-7, T47D) and ER- negative cell lines (MDAMB-468, MDAMB-231), and established inhibitors of ER-α and MGMT, namely, ICI-182,780 (Faslodex) and O(6)-benzylguanine, respectively, were used to study MGMT- ER interactions...
September 2016: Journal of Biomedical Research
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