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Staudinger M, Glorius P, Burger R, Kellner C, Klausz K, Günther A, Repp R, Klapper W, Gramatzki M, Peipp M. The novel immunotoxin HM1.24-ETA' induces apoptosis in multiple myeloma cells. Blood Cancer J 2014; 4:e219. [PMID: 24927408 PMCID: PMC4080209 DOI: 10.1038/bcj.2014.38] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 04/17/2014] [Accepted: 04/30/2014] [Indexed: 11/09/2022] Open
Abstract
Despite new treatment modalities, the clinical outcome in a substantial number of patients with multiple myeloma (MM) has yet to be improved. Antibody-based targeted therapies for myeloma patients could make use of the HM1.24 antigen (CD317), a surface molecule overexpressed on malignant plasma cells and efficiently internalized. Here, a novel immunotoxin, HM1.24-ETA', is described. HM1.24-ETA' was generated by genetic fusion of a CD317-specific single-chain Fv (scFv) antibody and a truncated variant of Pseudomonas aeruginosa exotoxin A (ETA'). HM1.24-ETA' inhibited growth of interleukin 6 (IL-6)-dependent and -independent myeloma cell lines. Half-maximal growth inhibition was observed at concentrations as low as 0.3 nM. Target cell killing occurred via induction of apoptosis and was unaffected in co-culture experiments with bone marrow stromal cells. HM1.24-ETA' efficiently triggered apoptosis of freshly isolated/cryopreserved cells of patients with plasma cell leukemia and MM and was active in a preclinical severe combined immunodeficiency (SCID) mouse xenograft model. Importantly, HM1.24-ETA' was not cytotoxic against CD317-positive cells from healthy tissue (monocytes, human umbilical vein endothelial cells). These results indicate that CD317 may represent a promising target structure for specific and efficient immunotoxin therapy for patients with plasma cell tumors.
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Krause G, Frank C, Gilsdorf A, Mielke M, Schaade L, Stark K, Burger R. [The 2011 HUS epidemic in Germany. Challenges for disease control: what should be improved?]. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2013; 56:56-66. [PMID: 23275957 DOI: 10.1007/s00103-012-1585-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
From May to July 2011 [corrected] the world's largest outbreak of hemolytic uremic syndrome (HUS) occurred in northern Germany with dramatic consequences for the population, the health care system and the food industry. In the following we examine the detection of the outbreak, epidemic management and related public communication aspects based on scientific publications, media reports as well as own and new data analyses. The subsequent 17 recommendations concern issues such as participation in and implementation of existing and new surveillance systems particularly with respect to physicians, broad application of finely tuned microbiological typing, improved personnel capacity and crisis management structures within the public health service and evidence-based communication by administrations and scientific associations. Outbreaks of similar dimensions can inevitably occur again and result in costs which will far exceed investments needed for early detection and control. This societal balance should be taken into account in spite of limited resources in the public health sector.
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Brown DS, Burger R, Cole N, Vencatasamy D, Clare EL, Montazam A, Symondson WOC. Dietary competition between the alien Asian Musk Shrew (Suncus murinus) and a re-introduced population of Telfair's Skink (Leiolopisma telfairii). Mol Ecol 2013; 23:3695-705. [PMID: 24033506 DOI: 10.1111/mec.12445] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Revised: 06/20/2013] [Accepted: 06/24/2013] [Indexed: 11/27/2022]
Abstract
Re-introduction of rare species to parts of their historical range is becoming increasingly important as a conservation strategy. Telfair's Skinks (Leiolopisma telfairii), once widespread on Mauritius, were until recently found only on Round Island. There it is vulnerable to stochastic events, including the introduction of alien predators that may either prey upon it or compete for food resources. Consequently, skinks have been introduced to Ile aux Aigrettes, another small Mauritian island that has been cleared of rats. However, the island has been invaded by Asian Musk Shrews (Suncus murinus), a commensal species spread by man well beyond its natural Asian range. Our aim was to use next-generation sequencing to analyse the diets of the shrews and skinks to look for niche competition. DNA was extracted from skink faeces and from the stomach contents of shrews. Application of shrew- and skink-specific primers revealed no mutual predation. The DNA was then amplified using general invertebrate primers with tags to identify individual predators, and then sequenced by 454 pyrosequencing. 119 prey MOTUs (molecular taxonomic units) were isolated, although none could be identified to species. Seeding of cladograms with known sequences allowed higher taxonomic assignments in some cases. Although most MOTUs were not shared by shrews and skinks, Pianka's niche overlap test showed significant prey overlap, suggesting potentially strong competition where food resources are limited. These results suggest that removal of the shrews from the island should remain a priority.
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duPont N, Brady M, Burger R, Monk B. Prognostic significance of ethnicity and age in advanced stage ovarian cancer: An analysis of GOG 218. Gynecol Oncol 2013. [DOI: 10.1016/j.ygyno.2013.04.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Coleman R, Burger R, Brady M, Bookman M, Fowler J, Birrer M, Fleming G, Mannel R, Monk B. Analysis of survivorship in high-risk patients on treated on GOG-218. Gynecol Oncol 2013. [DOI: 10.1016/j.ygyno.2013.04.326] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Randall L, Burger R, Nguyen H, Kong G, Bookman M, Fleming G, Monk B, Mannel R, Birrer M. Time from completion of chemotherapy to disease progression as a clinically relevant endpoint in women with epithelial ovarian, primary peritoneal, and fallopian tube cancers treated with and without bevacizumab. Gynecol Oncol 2013. [DOI: 10.1016/j.ygyno.2013.04.346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Tassone P, Neri P, Burger R, Di Martino MT, Leone E, Amodio N, Caraglia M, Tagliaferri P. Mouse models as a translational platform for the development of new therapeutic agents in multiple myeloma. Curr Cancer Drug Targets 2013; 12:814-22. [PMID: 22671927 PMCID: PMC3587184 DOI: 10.2174/156800912802429292] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2011] [Revised: 11/25/2011] [Accepted: 12/08/2011] [Indexed: 12/22/2022]
Abstract
Mouse models of multiple myeloma (MM) are basic tools for translational research and play a fundamental role in the development of new therapeutics against plasma cell malignancies. All available models, including transplantable murine tumors in syngenic mice, xenografts of established human cell lines in immunocompromised mice and transgenic models that mirror specific steps of MM pathogenesis, have demonstrated some weaknesses in predicting clinical results, particularly for new drugs targeting the human bone marrow microenvironment (huBMM). The recent interest to models recapitulating the in vivo growth of primary MM cells in a human (SCID-hu) or humanized (SCID-synth-hu) host recipient has provided powerful platforms for the investigation of new compounds targeting MM and/or its huBMM. Here, we review and discuss strengths and weaknesses of the key in vivo models that are currently utilized in the MM preclinical investigation.
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Burger R, Alvarezsalas L, Wilczynski S, Monk B, Dipaolo J. Polymorphism of the hpv-16 e6 gene of cervical-carcinoma. Int J Oncol 2012; 7:261-6. [PMID: 21552834 DOI: 10.3892/ijo.7.2.261] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Polymorphism of the human papillomavirus type 16 (HPV-16) genome has been reported to occur within the noncoding regulatory long control region (LCR) and in the E7 and L1 genes. The current study focuses on the HPV-16 E6 oncogene which interacts with the antioncogenic regulator p53. Seventy-eight HPV-16-positive DNA samples derived from cervical carcinomas were screened for the presence of polymorphism in the HPV-16 E6 gene by polymerase chain reaction (PCR) linked single stranded conformational polymorphism (SSCP) analysis. Nine DNA samples had heterozygous mutations within the same region of the E6 gene 3' terminus; T to C transitions at HPV-16 position 511 (silent) and one of the nine also had a 513 mutation (Met to Thr). These mutations correlated with the clinical aggressiveness of the tumor, suggesting that the presence of these mutations may be due to genomic instability of advanced cervical carcinoma.
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Chan J, Java J, Monk B, Alvarez-Secord A, Kapp D, Birrer M, Aghajanian C, Bookman M, Kattan M, Burger R. A practical prediction model for determining bevacizumab response and toxicity in the treatment of advanced ovarian and peritoneal cancers – An analysis of GOG 218. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2011.12.070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Rossi E, Brady M, Thigpen J, Stehman F, Burger R. Impact of cytokine use on survival in the first-line treatment of ovarian cancer: A Gynecologic Oncology Group study. Gynecol Oncol 2012. [DOI: 10.1016/j.ygyno.2011.12.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Hahn A, Michalak H, Begemann K, Meyer H, Burger R. Expert judgement of poisonings and human biomonitoring – The BfR three-level and matrix model. Int J Hyg Environ Health 2012; 215:242-6. [DOI: 10.1016/j.ijheh.2011.09.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Revised: 06/22/2011] [Accepted: 09/07/2011] [Indexed: 10/14/2022]
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Fleissig K, Hattingen J, Wilkens L, Förster C, Gaab MR, Burger R. Spontaneous umbilical cerebrospinal fluid fistula due to transdermal dislocation of the ventriculoperitoneal distal shunt ending--a case report. J Neurol Surg A Cent Eur Neurosurg 2012; 74:64-7. [PMID: 22249856 DOI: 10.1055/s-0032-1313643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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63
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Koelch M, Pfalzer AK, Kliegl K, Rothenhöfer S, Ludolph AG, Fegert JM, Burger R, Mehler-Wex C, Stingl J, Taurines R, Egberts K, Gerlach M. Therapeutic drug monitoring of children and adolescents treated with fluoxetine. PHARMACOPSYCHIATRY 2011; 45:72-6. [PMID: 22086744 DOI: 10.1055/s-0031-1291294] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
INTRODUCTION Information about therapeutic serum levels of fluoxetine (FLX) and its major metabolite norfluoxetine (NORFLX) in children and adolescents is scarce. METHODS Therapeutic drug monitoring (TDM) of FLX was routinely performed in 71 subjects treated for a major depressive disorder (MDD) (10-60 mg/d FLX, median: 20 mg/d). Correlations between serum concentration and dosage, age, gender, smoking habits and adverse events were analysed. RESULTS Serum concentrations of the active moiety (FLX + NORFLX) ranged from 21 to 613 ng/mL (mean concentration of 213 ± 118 ng/mL, median: 185 ng/mL). High inter-individual variability in serum concentrations of the active moiety of FLX at each dosage level was observed and no relationship between serum concentration and clinical outcome was found. Apart from smoking, none of the factors tested had a significant eff ect on the serum concentration. DISCUSSION It was shown that serum concentrations of the active moiety of FLX in children and adolescents seem to be similar to those in adults, with a high level of inter-individual variation. The proportion of patients who showed benefits from treatment with a dose of 20 mg/d FLX was high.
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Chase D, Sill M, Chambers M, Darcy K, Han E, Fruehauf J, Monk B, Buening B, Sorosky J, Burger R. Changes in tumor blood flow as estimated by dynamic-contrast MRI may predict activity of single-agent bevacizumab in recurrent epithelial ovarian cancer and primary peritoneal cancer: An exploratory analysis of a Gynecologic Oncology Group phase II trial. Gynecol Oncol 2011. [DOI: 10.1016/j.ygyno.2010.12.157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Burger R, Brady M, Bookman M, Monk B, Walker J, Homesley H, Fowler J, Greer B, Boente M, Liang S. Prospective investigation of risk factors for gastrointestinal adverse events in a phase III randomized trial of bevacizumab in first-line therapy of advanced epithelial ovarian cancer, primary peritoneal cancer or fallopian tube cancer: A Gynecologic Oncology Group study. Gynecol Oncol 2011. [DOI: 10.1016/j.ygyno.2010.12.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Klampfl K, Quattländer A, Burger R, Pfuhlmann B, Warnke A, Gerlach M. Case report: intoxication with high dose of long-acting methylphenidate (Concerta(®)) in a suicidal 14-year-old girl. ACTA ACUST UNITED AC 2010; 2:221-4. [PMID: 21432608 DOI: 10.1007/s12402-010-0032-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2010] [Accepted: 08/15/2010] [Indexed: 11/30/2022]
Abstract
A 14-year-old girl with suicidal ideation was presented to the paediatric hospital about 2 h after ingestion of 21 long-acting methylphenidate (MPH) 54-mg tablets (1,134 mg Concerta(®)). At admission signs of sympathomimetic syndrome were observed like agitation, visual hallucinations, slight hypertension, and sinus tachycardia. Treatment included prevention of absorption (30 g activated charcoal orally) and careful observation related to the overstimulation of the sympathic system. Despite the intake of charcoal, the serum concentrations of MPH were 107 and 93 ng/ml 2.5 and 22 h after ingestion of MPH tablets. No support of vital functions was necessary. The girl made a full recovery and was discharged after 3 days of care at the paediatric clinic and referred to the child and adolescent psychiatric department. Exposure to a huge overdose of long-acting MPH exhibited acute sympathomimetic toxicity but no life-threatening symptoms in this patient. Thus this case report suggests that patients intoxicated with high dose long-acting MPH formulations can recover without sequelae when managed properly.
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Guenther A, Baumann P, Burger R, Klapper W, Schmidmaier R, Gramatzki M. Single-agent everolimus (RAD001) in patients with relapsed or refractory multiple myeloma: Final results of a phase I study. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.8137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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69
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Klampfl K, Taurines R, Preuss A, Burger R, Rothenhöfer S, Wewetzer C, Pfuhlmann B, Fegert J, Gerlach M, Mehler-Wex C. Serum Concentrations, Therapeutic Response and Side Effects in Children and Adolescents with Impulsive-Aggressive Symptoms during Risperidone Therapy. PHARMACOPSYCHIATRY 2009; 43:58-65. [DOI: 10.1055/s-0029-1239540] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Burger R. Aufrechterhaltung der Versorgung mit Blutprodukten im Falle einer Influenza-Pandemie. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2009; 52:1210-22. [PMID: 20012570 PMCID: PMC7079957 DOI: 10.1007/s00103-009-1003-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Pfuhlmann B, Hiemke C, Unterecker S, Burger R, Riederer P, Deckert J, Jabs B. The influence of inflammatory reactions on the serum concentration of clozapine. PHARMACOPSYCHIATRY 2009. [DOI: 10.1055/s-0029-1240200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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72
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Burger R, Offergeld R. [Communications by the Blood Working Group of the Federal Public Health Administration. Measures to prevent transfusion-induced lung failure (TRALI)]. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2009; 52:572. [PMID: 19407940 DOI: 10.1007/s00103-009-0866-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Burger R. Untersuchungen an der spezifischen Muskulatur des Herzens. 2. Mitteilung. Weitere elektrokardiographische Studien am Purkinje-Faden des Kalbsherzens. Cardiology 2008. [DOI: 10.1159/000164859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Burger R. Untersuchungen an der spezifischen Muskulatur des Herzens. 3. Mitteilung. Die Gewinnung des Mechanogramms des Purkinje-Fadens mittels piezoelektrischen Verfahrens. Cardiology 2008. [DOI: 10.1159/000164860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Burger R, Wuhrmann F. Experimentelle Untersuchungen über die elektrokardiographische Feststellbarkeit und Lokalisation umschriebener Myokardläsionen. Cardiology 2008. [DOI: 10.1159/000165991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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