1
|
Chardon A, Udrescu C, Beneux A, Ruffion A, Horn S, Lapierre A, Chapet O. Erectile function preservation after radiotherapy using a dose-optimization approach on sexual structures for localized prostate cancer. Cancer Radiother 2024; 28:182-187. [PMID: 38599939 DOI: 10.1016/j.canrad.2023.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 08/05/2023] [Accepted: 08/09/2023] [Indexed: 04/12/2024]
Abstract
PURPOSE Erectile function preservation is an important quality of life factor in patients treated for prostate cancer. A dose-optimization approach on sexual structures was developed and evaluated to limit erectile dysfunction after radiotherapy. MATERIALS AND METHODS Twenty-three men with localized prostate cancer and no erectile dysfunction were enrolled in the study. All patients received a prescription dose between 76 and 78Gy. Computed tomography/magnetic resonance image registration was used to delineate the prostatic volume and the sexual structures: internal pudendal arteries (IPA), penile bulb and corpus cavernosum. Erectile function was evaluated using the 5-items International Index of Erectile Function (IIEF-5) score every 6 months during the 2 years after radiotherapy and once a year afterwards. No erectile dysfunction, mild erectile dysfunction and severe erectile dysfunction were defined if the IIEF-5 scores were 20-25, 17-19 and < 17, respectively. RESULTS The mean follow-up was 4.5 years. The mean age of the patients was 66.3 years. At 2 years, 67% of the patients had no erectile dysfunction, 11% had mild erectile dysfunction and 22% had severe erectile dysfunction. No significant difference was found between the patients with and without erectile dysfunction (IIEF-5≥20 and IIEF-5<20, respectively) for any of the parameters: dosimetric values (internal pudendal arteries, penile bulb, corpus cavernosum), age, comorbidity and smoking status. The biochemical-relapse free survival was 100% at 2 years. CONCLUSION This approach with dose-optimization on sexual structures for localized prostate cancer found excellent results on erectile function preservation after radiotherapy, with 78% of the patients with no or mild erectile dysfunction at 2 years.
Collapse
Affiliation(s)
- A Chardon
- Department of Radiotherapy-Oncology, centre hospitalier Lyon Sud, 165, chemin du Grand-Revoyet, 69495 Pierre-Bénite, France; Université Claude-Bernard Lyon 1, 43, boulevard du 11-novembre-1918, 69100 Villeurbanne, France
| | - C Udrescu
- Department of Radiotherapy-Oncology, centre hospitalier Lyon Sud, 165, chemin du Grand-Revoyet, 69495 Pierre-Bénite, France; Université Claude-Bernard Lyon 1, 43, boulevard du 11-novembre-1918, 69100 Villeurbanne, France
| | - A Beneux
- Department of Radiotherapy-Oncology, centre hospitalier Lyon Sud, 165, chemin du Grand-Revoyet, 69495 Pierre-Bénite, France
| | - A Ruffion
- Université Claude-Bernard Lyon 1, 43, boulevard du 11-novembre-1918, 69100 Villeurbanne, France; Department of Urology, centre hospitalier Lyon Sud, 165, chemin du Grand-Revoyet, 69495 Pierre-Bénite, France
| | - S Horn
- Department of Radiotherapy-Oncology, centre hospitalier Lyon Sud, 165, chemin du Grand-Revoyet, 69495 Pierre-Bénite, France
| | - A Lapierre
- Department of Radiotherapy-Oncology, centre hospitalier Lyon Sud, 165, chemin du Grand-Revoyet, 69495 Pierre-Bénite, France; Université Claude-Bernard Lyon 1, 43, boulevard du 11-novembre-1918, 69100 Villeurbanne, France
| | - O Chapet
- Department of Radiotherapy-Oncology, centre hospitalier Lyon Sud, 165, chemin du Grand-Revoyet, 69495 Pierre-Bénite, France; Université Claude-Bernard Lyon 1, 43, boulevard du 11-novembre-1918, 69100 Villeurbanne, France.
| |
Collapse
|
2
|
Ailloud A, Udrescu C, Horn S, Enachescu C, Créhange G, Sargos P, Supiot S, Zilli T, Lapierre A, Chapet O. [Relationship between doses to anatomical structures and erectile dysfunction after radiotherapy for prostate cancer: A systematic review]. Cancer Radiother 2023; 27:548-561. [PMID: 37596125 DOI: 10.1016/j.canrad.2023.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 07/12/2023] [Indexed: 08/20/2023]
Abstract
PURPOSE During prostatic radiotherapy, damage to several anatomical structures could be the cause of erectile dysfunction: corpora cavernosa, internal pudendal arteries, penile bulb, and neurovascular bundles. Numerous studies have analysed the correlations between the dose received by these structures and erectile function. The objective of this article is to make a systematic review on current knowledge. MATERIALS AND METHODS A systematic review was performed in the Medline database using the search engine PubMed. Keywords for the search included: erectile dysfunction, penile bulb, corpora cavernosa, cavernosum, neurovascular bundles, radiation therapy, cancer, prostate cancer. The selected articles must study a correlation between erectile dysfunction and the dose received by anatomical structures. A total of 152 articles were identified. Of these 152 articles, 45 fulfilled the defined selection criteria. RESULTS For corpora cavernosa, seven studies were identified, only two studies demonstrated a significant correlation between the dose received by corpora cavernosa and the occurrence of erectile dysfunction. For penile bulb, only 15 of 23 studies showed a correlation. A mean dose on the penile bulb greater than 20Gy was found to be predictive of erectile dysfunction. None of the eight trials concerning neurovascular bundles succeeded to show a correlation between dose and erectile dysfunction. Only one study evaluated the relationship between the dose received by internal pudendal arteries and erectile dysfunction but was found to be negative. However, vessels-sparing studies showed good results on erectile function preservation without compromising the target volume. CONCLUSION We currently have little data to show a correlation between erectile dysfunction and sexual structures. It would be necessary to have additional prospective studies evaluating the impact of an optimization on these sexual structures on erectile dysfunction.
Collapse
Affiliation(s)
- A Ailloud
- Département de radiothérapie-oncologie, hôpital Lyon-Sud, Pierre-Bénite, France
| | - C Udrescu
- Département de radiothérapie-oncologie, hôpital Lyon-Sud, Pierre-Bénite, France; Université Claude-Bernard Lyon 1, Pierre-Bénite, France
| | - S Horn
- Département de radiothérapie-oncologie, hôpital Lyon-Sud, Pierre-Bénite, France
| | - C Enachescu
- Département de radiothérapie-oncologie, hôpital Lyon-Sud, Pierre-Bénite, France
| | - G Créhange
- Département de radiothérapie-oncologie, institut Curie, Paris, France; Université PSL, université Paris-Saclay, U1288, Inserm Lito, Orsay, France
| | - P Sargos
- Département de radiothérapie-oncologie, institut Bergonié, Bordeaux, France
| | - S Supiot
- Département de radiothérapie-oncologie, institut de cancérologie de l'Ouest, centre René-Gauducheau, Saint-Herblain, France
| | - T Zilli
- Département de radiothérapie-oncologie, hôpitaux universitaires de Genève, Genève, Suisse; Université de médecine de Genève, Genève, Suisse
| | - A Lapierre
- Département de radiothérapie-oncologie, hôpital Lyon-Sud, Pierre-Bénite, France; Université Claude-Bernard Lyon 1, Pierre-Bénite, France
| | - O Chapet
- Département de radiothérapie-oncologie, hôpital Lyon-Sud, Pierre-Bénite, France; Université Claude-Bernard Lyon 1, Pierre-Bénite, France.
| |
Collapse
|
3
|
Stenzel U, Horn S. bathometer: lightning fast depth-of-reads query. Bioinformatics 2021; 37:4233-4234. [PMID: 33983362 PMCID: PMC9502157 DOI: 10.1093/bioinformatics/btab372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 05/06/2021] [Accepted: 05/12/2021] [Indexed: 11/30/2022] Open
Abstract
Motivation The query for the number of reads overlapping a given region is a common step in the analysis of Illumina sequencing data. Sometimes, these queries are not conveniently precomputable. It seems beneficial to make this kind of arbitrary query as fast and convenient as possible. Results We present Bathometer, a tool that indexes BAM files in a space efficient way, which allows ad hoc queries for the number of reads overlapping any given genomic region to be answered much more quickly than by counting with common tools such as Samtools, while incurring much less disk I/O. Availabilityand implementation Bathometer is implemented in C, licensed under the GNU General Public License version 3+ and freely downloadable from Bitbucket (https://bitbucket.org/ustenzel/bathometer) Supplementary information Supplementary data are available at Bioinformatics online.
Collapse
Affiliation(s)
- U Stenzel
- Rudolf Schönheimer Institute of Biochemistry, University of Leipzig, Johannisallee 30, 04103 Leipzig, Germany
| | - S Horn
- Rudolf Schönheimer Institute of Biochemistry, University of Leipzig, Johannisallee 30, 04103 Leipzig, Germany.,Department of Dermatology, University Hospital Essen, Hufelandstr. 55, 45122 Essen, Germany.,German Cancer Consortium (DKTK), University Hospital Essen, Hufelandstr. 55, 45122 Essen, Germany
| |
Collapse
|
4
|
|
5
|
Livingstone E, Zaremba A, Horn S, Ugurel S, Casalini B, Schlaak M, Hassel JC, Herbst R, Utikal JS, Weide B, Gutzmer R, Meier F, Koelsche C, Hadaschik E, Sucker A, Reis H, Merkelbach-Bruse S, Siewert M, Sahm F, von Deimling A, Cosgarea I, Zimmer L, Schadendorf D, Schilling B, Griewank KG. GNAQ and GNA11 mutant nonuveal melanoma: a subtype distinct from both cutaneous and uveal melanoma. Br J Dermatol 2020; 183:928-939. [PMID: 32064597 DOI: 10.1111/bjd.18947] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/11/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND GNAQ and GNA11 mutant nonuveal melanoma represent a poorly characterized rare subgroup of melanoma with a gene mutation profile similar to uveal melanoma. OBJECTIVES To characterize these tumours in terms of clinical behaviour and genetic characteristics. METHODS Patients with nonuveal GNAQ/11 mutated melanoma were identified from the prospective multicentre tumour tissue registry ADOREG, Tissue Registry in Melanoma (TRIM) and additional cooperating skin cancer centres. Extensive data on patient, tumour and treatment characteristics were collected retrospectively. Targeted sequencing was used to determine tumour mutational burden. Immunohistochemistry staining was performed for programmed death-ligand 1 and BRCA1-associated protein (BAP)1. Existing whole-exome cutaneous and uveal melanoma data were analysed for mutation type and burden. RESULTS We identified 18 patients with metastatic GNAQ/11 mutant nonuveal melanoma. Tumours had a lower tumour mutational burden and fewer ultraviolet signature mutations than cutaneous melanomas. In addition to GNAQ and GNA11 mutations (nine each), six splicing factor 3b subunit 1 (SF3B1), three eukaryotic translation initiation factor 1A X-linked (EIF1AX) and four BAP1 mutations were detected. In contrast to uveal melanoma, GNAQ/11 mutant nonuveal melanomas frequently metastasized lymphatically and concurrent EIF1AX, SF3B1 and BAP1 mutations showed no apparent association with patient prognosis. Objective response to immunotherapy was poor with only one partial response observed in 10 treated patients (10%). CONCLUSIONS Our findings suggest that GNAQ/11 mutant nonuveal melanomas are a subtype of melanoma that is both clinically and genetically distinct from cutaneous and uveal melanoma. As they respond poorly to available treatment regimens, novel effective therapeutic approaches for affected patients are urgently needed. What is already known about this topic? The rare occurrence of GNAQ/11 mutations in nonuveal melanoma has been documented. GNAQ/11 mutant nonuveal melanomas also harbour genetic alterations in EIF1AX, SF3B1 and BAP1 that are of prognostic relevance in uveal melanoma. What does this study add? GNAQ/11 mutant nonuveal melanomas show metastatic spread reminiscent of cutaneous melanoma, but not uveal melanoma. GNAQ/11 mutant nonuveal melanomas have a low tumour mutational burden that is higher than uveal melanoma, but lower than cutaneous melanoma. What is the translational message? Primary GNAQ/11 mutant nonuveal melanomas are a subtype of melanoma that is clinically and genetically distinct from both cutaneous and uveal melanoma. As metastatic GNAQ/11 mutant nonuveal melanomas respond poorly to available systemic therapies, including immune checkpoint inhibition, novel therapeutic approaches for these tumours are urgently needed. Linked Comment: Rafei-Shamsabadi. Br J Dermatol 2020; 183:806-807.
Collapse
Affiliation(s)
- E Livingstone
- Department of Dermatology, University Hospital Essen, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany
| | - A Zaremba
- Department of Dermatology, University Hospital Essen, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany
| | - S Horn
- Department of Dermatology, University Hospital Essen, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany.,Medical Faculty of the University Leipzig, Rudolf-Schönheimer-Institute of Biochemistry, Johannisallee 30, 04103, Leipzig, Germany
| | - S Ugurel
- Department of Dermatology, University Hospital Essen, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany
| | - B Casalini
- Department of Neuropathology, University Hospital Heidelberg, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany.,Clinical Cooperation Unit Neuropathology and DKTK, DKFZ, Heidelberg, Germany
| | - M Schlaak
- Department of Dermatology, LMU München, Frauenlobstraße 9-11, 80337, Munich, Germany
| | - J C Hassel
- Department of Dermatology and National Center for Tumor Diseases, University Hospital Heidelberg, Im Neuenheimer Feld 460, 69120, Heidelberg, Germany
| | - R Herbst
- Department of Dermatology, Helios Klinikum Erfurt, Nordhäuserstr. 74, 99089, Erfurt, Germany
| | - J S Utikal
- Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, Ruprecht-Karl University of Heidelberg, Mannheim, Germany
| | - B Weide
- Department of Dermatology, University of Tübingen, Liebermeisterstraße 25, 72076, Tübingen, Germany
| | - R Gutzmer
- Department of Dermatology, Medizinische Hochschule Hannover, Carl-Neuberg-Straße 1, 30625, Hannover, Germany
| | - F Meier
- Department of Dermatology, Carl-Gustav-Carus University Hospital, Fetscherstr. 74, 01307, Dresden, Germany
| | - C Koelsche
- Department of General Pathology, University Hospital Heidelberg, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - E Hadaschik
- Department of Dermatology, University Hospital Essen, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany
| | - A Sucker
- Department of Dermatology, University Hospital Essen, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany
| | - H Reis
- Institute of Pathology, University Hospital Essen, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany
| | - S Merkelbach-Bruse
- Institute of Pathology, University Hospital Cologne, Kerpener Str. 62, 50924, Cologne, Germany
| | - M Siewert
- Department of Dermatology, University Hospital Essen, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany
| | - F Sahm
- Department of Neuropathology, University Hospital Heidelberg, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany.,Clinical Cooperation Unit Neuropathology and DKTK, DKFZ, Heidelberg, Germany
| | - A von Deimling
- Department of Neuropathology, University Hospital Heidelberg, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany.,Clinical Cooperation Unit Neuropathology and DKTK, DKFZ, Heidelberg, Germany
| | - I Cosgarea
- Dermatological Sciences, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - L Zimmer
- Department of Dermatology, University Hospital Essen, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany
| | - D Schadendorf
- Department of Dermatology, University Hospital Essen, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany.,German Cancer Consortium (DKTK), Heidelberg, Germany
| | - B Schilling
- Deptartment of Dermatology, University of Würzburg, Josef-Schneider-Str. 2, 97080, Würzburg, Germany
| | - K G Griewank
- Department of Dermatology, University Hospital Essen, University of Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany.,Dermatopathologie bei Mainz, Bahnhofstr. 2B, 55268, Nieder-Olm, Germany
| |
Collapse
|
6
|
Santander P, Quast A, Hubbert J, Horn S, Meyer-Marcotty P, Küster H, Dieks JK. Three-dimensional head shape acquisition in preterm infants - Translating an orthodontic imaging procedure into neonatal care. Early Hum Dev 2019; 140:104908. [PMID: 31670175 DOI: 10.1016/j.earlhumdev.2019.104908] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/10/2019] [Accepted: 10/15/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND Head shape and head volume of preterm infants give important information on short- and long-term development. Three-dimensional (3D) assessment of a preterm infant's head would therefore provide more information than currently used two-dimensional methods. AIMS To evaluate a contactless 3D imaging system to assess head shape and volume in preterm infants. METHODS A protocol for 3D imaging and reconstruction of an infant's head with a portable stereophotogrammetric camera system was developed. It was validated on a manikin by comparison to an established stationary stereophotogrammetric device. Feasibility for clinical routine and 3D data analysis were assessed in six preterm infants. RESULTS Ten 3D reconstructions from a manikin were done with ten images each taken from different angles. The accuracy of the 3D reconstruction was measured at the overlapping areas between two images. Comparing the portable to the stationary system, a high concordance was found for the 3D manikin head-reconstructions (mean difference 0.21 ± 0.03 mm). In preterm infants, digital evaluation of the head was proven to be feasible for head circumference (HC), cranial index and asymmetry indices. There was good concordance between manual and digital measurement of the HC (95% CI -0.85 to 0.38 mm). CONCLUSIONS The portable camera system allowed fast and contactless 3D image capture of a preterm infant's head without any risk or interference with neonatal care. Together with a new software, this technique would allow more precise evaluation of head growth even in very preterm infants and thereby may improve their care and long-term outcome.
Collapse
Affiliation(s)
- P Santander
- Department of Orthodontics, University Medical Center, Robert-Koch-Straße 40, 37075 Göttingen, Germany.
| | - A Quast
- Department of Orthodontics, University Medical Center, Robert-Koch-Straße 40, 37075 Göttingen, Germany.
| | - J Hubbert
- Department of Orthodontics, University Medical Center, Robert-Koch-Straße 40, 37075 Göttingen, Germany
| | - S Horn
- Department of Pediatric Cardiology, Neonatology and Intensive Care Medicine, University Medical Center, Robert-Koch-Straße 40, 37075 Göttingen, Germany.
| | - P Meyer-Marcotty
- Department of Orthodontics, University Medical Center, Robert-Koch-Straße 40, 37075 Göttingen, Germany.
| | - H Küster
- Department of Pediatric Cardiology, Neonatology and Intensive Care Medicine, University Medical Center, Robert-Koch-Straße 40, 37075 Göttingen, Germany.
| | - J K Dieks
- Department of Pediatric Cardiology, Neonatology and Intensive Care Medicine, University Medical Center, Robert-Koch-Straße 40, 37075 Göttingen, Germany.
| |
Collapse
|
7
|
Lapierre A, Horn S, Créhange G, Enachescu C, Latorzeff I, Supiot S, Sargos P, Hennequin C, Chapet O. Radiothérapie stéréotaxique extracrânienne : quelle machine pour quelle indication ? Stéréotaxie prostatique. Cancer Radiother 2019; 23:651-657. [DOI: 10.1016/j.canrad.2019.06.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 06/26/2019] [Indexed: 10/26/2022]
|
8
|
Shannan B, Matschke J, Chauvistré H, Vogel F, Klein D, Meier F, Westphal D, Bruns J, Rauschenberg R, Utikal J, Forschner A, Berking C, Terheyden P, Dabrowski E, Gutzmer R, Rafei-Shamsabadi D, Meiss F, Heinzerling L, Zimmer L, Livingstone E, Váraljai R, Hoewner A, Horn S, Klode J, Stuschke M, Scheffler B, Marchetto A, Sannino G, Grünewald TGP, Schadendorf D, Jendrossek V, Roesch A. Sequence-dependent cross-resistance of combined radiotherapy plus BRAF V600E inhibition in melanoma. Eur J Cancer 2019; 109:137-153. [PMID: 30721788 DOI: 10.1016/j.ejca.2018.12.024] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 12/22/2018] [Accepted: 12/29/2018] [Indexed: 01/04/2023]
Abstract
INTRODUCTION Treatment of patients with metastatic melanoma is hampered by drug-resistance and often requires combination with radiotherapy as last-resort option. However, also after radiotherapy, clinical relapses are common. METHODS & RESULTS Our preclinical models indicated a higher rate of tumour relapse when melanoma cells were first treated with BRAFV600E inhibition (BRAFi) followed by radiotherapy as compared to the reverse sequence. Accordingly, retrospective follow-up data from 65 stage-IV melanoma patients with irradiated melanoma brain metastases confirmed a shortened duration of local response of mitogen-activated protein kinase (MAPK)-inhibitor-pretreated compared with MAPK-inhibitor-naïve intracranial metastases. On the molecular level, we identified JARID1B/KDM5B as a cellular marker for cross-resistance between BRAFi and radiotherapy. JARID1Bhigh cells appeared more frequently under upfront BRAFi as compared with upfront radiation. JARID1B favours cell survival by transcriptional regulation of genes controlling cell cycle, DNA repair and cell death. CONCLUSION The level of cross-resistance between combined MAPK inhibition and radiotherapy is dependent on the treatment sequence. JARID1B may represent a novel therapy-overarching resistance marker.
Collapse
Affiliation(s)
- B Shannan
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - J Matschke
- Institute of Cell Biology (Cancer Research), University of Duisburg-Essen, Medical School, Germany
| | - H Chauvistré
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - F Vogel
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - D Klein
- Institute of Cell Biology (Cancer Research), University of Duisburg-Essen, Medical School, Germany
| | - F Meier
- Skin Cancer Center National Center for Tumor Diseases, Department of Dermatology, Medical Faculty and University Hospital Carl Gustav Carus, TU Dresden, Germany
| | - D Westphal
- Skin Cancer Center National Center for Tumor Diseases, Department of Dermatology, Medical Faculty and University Hospital Carl Gustav Carus, TU Dresden, Germany
| | - J Bruns
- Skin Cancer Center National Center for Tumor Diseases, Department of Dermatology, Medical Faculty and University Hospital Carl Gustav Carus, TU Dresden, Germany
| | - R Rauschenberg
- Skin Cancer Center National Center for Tumor Diseases, Department of Dermatology, Medical Faculty and University Hospital Carl Gustav Carus, TU Dresden, Germany
| | - J Utikal
- Skin Cancer Unit German Cancer Research Center (DKFZ), Heidelberg, Germany; Department of Dermatology, Venereology and Allergology University Medical Center Mannheim, Heidelberg University, Mannheim, Germany
| | - A Forschner
- Department of Dermatology, Center for Dermatooncology, University Hospital Tübingen, Germany
| | - C Berking
- Department of Dermatology and Allergy, University Hospital of Munich, Munich, Germany
| | - P Terheyden
- Department of Dermatology, University of Luebeck, Luebeck, Germany
| | - E Dabrowski
- Department of Dermatology, Klinikum Ludwigshafen, Ludwigshafen, Germany
| | - R Gutzmer
- Skin Cancer Centre, Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany
| | - D Rafei-Shamsabadi
- Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - F Meiss
- Department of Dermatology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany
| | - L Heinzerling
- Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - L Zimmer
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - Elisabeth Livingstone
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - Renáta Váraljai
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - A Hoewner
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - S Horn
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - J Klode
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - M Stuschke
- Department of Radiotherapy, West German Cancer Center, University Hospital, University of Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Essen, Germany
| | - B Scheffler
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - A Marchetto
- Max-Eder Research Group for Pediatric Sarcoma Biology, Institute of Pathology, Faculty of Medicine, LMU Munich, Germany
| | - G Sannino
- Max-Eder Research Group for Pediatric Sarcoma Biology, Institute of Pathology, Faculty of Medicine, LMU Munich, Germany
| | - T G P Grünewald
- Max-Eder Research Group for Pediatric Sarcoma Biology, Institute of Pathology, Faculty of Medicine, LMU Munich, Germany; German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany; German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - D Schadendorf
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany
| | - V Jendrossek
- Institute of Cell Biology (Cancer Research), University of Duisburg-Essen, Medical School, Germany
| | - A Roesch
- Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK) University of Duisburg-Essen, Germany.
| |
Collapse
|
9
|
Yap T, Kennerly S, Horn S, Bergstrom N, Colon-Emeric C. TEAM-UP CLINICAL TRIAL: INVESTIGATING REPOSITIONING INTERVALS FOR NURSING HOME PRESSURE ULCER/INJURY PREVENTION. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.2097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - S Kennerly
- East Carolina University College of Nursing
| | - S Horn
- University of Utah School of Medicine
| | - N Bergstrom
- University of Texas at Houston, School of Nursing
| | | |
Collapse
|
10
|
Leonardelli S, Horn S, Sucker A, Schadendorf D, Griewank K, Paschen A. PO-399 Tumour CDKN2A loss predisposes to immunotherapy resistance. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
11
|
Ruhland K, Frenzel R, Horny R, Nizamutdinova A, van Wüllen L, Moosburger-Will J, Horn S. Investigation of the chemical changes during thermal treatment of polyacrylonitrile and 15N-labelled polyacrylonitrile by means of in-situ FTIR and 15N NMR spectroscopy. Polym Degrad Stab 2017. [DOI: 10.1016/j.polymdegradstab.2017.10.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
12
|
Täger M, Horn S, Latuske E, Ehm P, Schaks M, Nalaskowski M, Fehse B, Fiedler W, Stocking C, Wellbrock J, Jücker M. SHIP1, but not an AML-derived SHIP1 mutant, suppresses myeloid leukemia growth in a xenotransplantation mouse model. Gene Ther 2017; 24:749-753. [DOI: 10.1038/gt.2017.88] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 08/09/2017] [Accepted: 08/23/2017] [Indexed: 02/02/2023]
|
13
|
Chapet O, Bossi A, Horn S, Créhange G. Association de radiothérapie externe et de curiethérapie pour les cancers de la prostate. Cancer Radiother 2017; 21:473-477. [DOI: 10.1016/j.canrad.2017.06.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 06/30/2017] [Indexed: 11/30/2022]
|
14
|
Youbi Z, Udrescu C, Horn S, Ribouton J, Lorchel F, Rouviere O, Chapet O. L’irradiation des artères pudendales chez les hommes induit une dysfonction érectile après curiethérapie de la prostate. Cancer Radiother 2017. [DOI: 10.1016/j.canrad.2017.08.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
15
|
Youbi Z, Udrescu C, Horn S, Ribouton J, Lorchel F, Rouviere O, Chapet O. Irradiation of the Pudendal Arteries Induces Erectile Dysfunction in Patients Treated by Brachytherapy for Prostate Cancer. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
16
|
Chapet O, de Laroche G, Bin S, Latorzeff I, Supiot S, Auberdiac P, Salem N, Verry C, Udrescu C, Cabelguenne D, Gaudioz S, Horn S, Ruffion A, Créhange G. Radiothérapie hypofractionnée modérée contre radiothérapie stéréotaxique avec injection d’acide hyaluronique dans les cancers de la prostate de risque faible à intermédiaire : toxicité aiguë dans l’étude RPAH2. Cancer Radiother 2017. [DOI: 10.1016/j.canrad.2017.07.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
17
|
Gould R, McFadden SL, Sands AJ, McCrossan BA, Horn S, Prise KM, Doyle P, Hughes CM. Removal of scatter radiation in paediatric cardiac catheterisation: a randomised controlled clinical trial. J Radiol Prot 2017; 37:742-760. [PMID: 28721947 DOI: 10.1088/1361-6498/aa80a4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE This study sought to determine if DNA integrity was compromised by ionising radiation from paediatric cardiac catheterisations and if dose optimisation techniques allowed DNA integrity to be maintained. MATERIALS AND METHODS Children were imaged using either: (i) an anti-scatter grid (current departmental protocol), (ii) no anti-scatter grid or, (iii) no anti-scatter grid and a 15 cm air-gap between the child and the x-ray detector. Dose area product and image quality were assessed, lifetime attributable cancer risk estimates were calculated and DNA double-strand breakages quantified using the γH2AX assay. RESULTS Consent was obtained from 70 parents/guardians/children. Image quality was sufficient for each procedure performed. Removal of the anti-scatter grid resulted in dose reductions of 20% (no anti-scatter grid) and 30% (15 cm air-gap), DNA double-strand break reductions of 30% (no anti-scatter grid) and 20% (15 cm air-gap) and a reduction of radiation-induced cancer mortality risk of up to 45%. CONCLUSION Radiation doses received during paediatric cardiac catheterisation procedures resulted in a significant increase in DNA damage while maintaining acceptable image quality and diagnostic efficacy. It is feasible to remove the anti-scatter grid resulting in a reduction in DNA damage to the patient. The γH2AX assay may be used for assessment of dose optimisation strategies in children.
Collapse
Affiliation(s)
- Richard Gould
- Institute of Nursing and Health Research, Ulster University, Jordanstown Campus, Shore Road, Newtownabbey, United Kingdom
| | | | | | | | | | | | | | | |
Collapse
|
18
|
Kirova Y, Horn S, Chen JY. Évolution des techniques d’irradiation pour la prise en charge de la maladie de Hodgkin : histoire et avenir. Cancer Radiother 2017. [DOI: 10.1016/j.canrad.2017.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
19
|
Weber A, Herr C, Hendrowarsito L, Pusch G, Effner R, Nennstiel-Ratzel U, Horn S, Forster F, Schmid R, Buters J, Heinze S. Sensibilisierungen und Allergien bei Kindern in Bayern (SEAL-Studie). Gesundheitswesen 2017. [DOI: 10.1055/s-0037-1602114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- A Weber
- Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit, München
| | - C Herr
- Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit, München
| | - L Hendrowarsito
- Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit, München
| | - G Pusch
- Zentrum für Allergie und Umwelt, Technische Universität München, München
| | - R Effner
- Zentrum für Allergie und Umwelt, Technische Universität München, München
| | - U Nennstiel-Ratzel
- Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit, Oberschleißheim
| | - S Horn
- Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit, München
| | - F Forster
- Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit, München
| | - R Schmid
- Gesundheitsamt Günzburg, Günzburg
| | - J Buters
- Zentrum für Allergie und Umwelt, Technische Universität München, München
| | - S Heinze
- Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit, München
| |
Collapse
|
20
|
Osman SOS, Horn S, Brady D, McMahon SJ, Yoosuf ABM, Mitchell D, Crowther K, Lyons CA, Hounsell AR, Prise KM, McGarry CK, Jain S, O'Sullivan JM. Prostate cancer treated with brachytherapy; an exploratory study of dose-dependent biomarkers and quality of life. Radiat Oncol 2017; 12:53. [PMID: 28288658 PMCID: PMC5348795 DOI: 10.1186/s13014-017-0792-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 02/26/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Low-dose-rate permanent prostate brachytherapy (PPB) is an attractive treatment option for patients with localised prostate cancer with excellent outcomes. As standard CT-based post-implant dosimetry often correlates poorly with late treatment-related toxicity, this exploratory (proof of concept) study was conducted to investigate correlations between radiation - induced DNA damage biomarker levels, and acute and late bowel, urinary, and sexual toxicity. METHODS Twelve patients treated with 125I PPB monotherapy (145Gy) for prostate cancer were included in this prospective study. Post-implant CT based dosimetry assessed the minimum dose encompassing 90% (D90%) of the whole prostate volume (global), sub-regions of the prostate (12 sectors) and the near maximum doses (D0.1cc, D2cc) for the rectum and bladder. Six blood samples were collected from each patient; pre-treatment, 1 h (h), 4 h, 24 h post-implant, at 4 weeks (w) and at 3 months (m). DNA double strand breaks were investigated by staining the blood samples with immunofluorescence antibodies to γH2AX and 53BP1 proteins (γH2AX/53BP1). Patient self-scored quality of life from the Expanded Prostate Cancer Index Composite (EPIC) were obtained at baseline, 1 m, 3 m, 6 m, 9 m, 1 year (y), 2y and 3y post-treatment. Spearman's correlation coefficients were used to evaluate correlations between temporal changes in γH2AX/53BP1, dose and toxicity. RESULTS The minimum follow up was 2 years. Population mean prostate D90% was 144.6 ± 12.1 Gy and rectal near maximum dose D0.1cc = 153.0 ± 30.8 Gy and D2cc = 62.7 ± 12.1 Gy and for the bladder D0.1cc = 123.1 ± 27.0 Gy and D2cc = 70.9 ± 11.9 Gy. Changes in EPIC scores from baseline showed high positive correlation between acute toxicity and late toxicity for both urinary and bowel symptoms. Increased production of γH2AX/53BP1 at 24 h relative to baseline positively correlated with late bowel symptoms. Overall, no correlations were observed between dose metrics (prostate global or sector doses) and γH2AX/53BP1 foci counts. CONCLUSIONS Our results show that a prompt increase in γH2AX/53BP1foci at 24 h post-implant relative to baseline may be a useful measure to assess elevated risk of late RT - related toxicities for PPB patients. A subsequent investigation recruiting a larger cohort of patients is warranted to verify our findings.
Collapse
Affiliation(s)
- Sarah O S Osman
- Centre of Cancer Research and Cell Biology, Queen's University Belfast, BT7 1NN, Belfast, UK.
| | - Simon Horn
- Centre of Cancer Research and Cell Biology, Queen's University Belfast, BT7 1NN, Belfast, UK
| | - Darren Brady
- Centre of Cancer Research and Cell Biology, Queen's University Belfast, BT7 1NN, Belfast, UK
| | - Stephen J McMahon
- Centre of Cancer Research and Cell Biology, Queen's University Belfast, BT7 1NN, Belfast, UK
| | - Ahamed B Mohamed Yoosuf
- Radiotherapy Physics, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, UK
| | - Darren Mitchell
- Clinical Oncology, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, UK
| | - Karen Crowther
- Radiotherapy Physics, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, UK
| | - Ciara A Lyons
- Centre of Cancer Research and Cell Biology, Queen's University Belfast, BT7 1NN, Belfast, UK
| | - Alan R Hounsell
- Centre of Cancer Research and Cell Biology, Queen's University Belfast, BT7 1NN, Belfast, UK.,Radiotherapy Physics, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, UK
| | - Kevin M Prise
- Centre of Cancer Research and Cell Biology, Queen's University Belfast, BT7 1NN, Belfast, UK
| | - Conor K McGarry
- Centre of Cancer Research and Cell Biology, Queen's University Belfast, BT7 1NN, Belfast, UK.,Radiotherapy Physics, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, UK
| | - Suneil Jain
- Centre of Cancer Research and Cell Biology, Queen's University Belfast, BT7 1NN, Belfast, UK.,Clinical Oncology, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, UK
| | - Joe M O'Sullivan
- Centre of Cancer Research and Cell Biology, Queen's University Belfast, BT7 1NN, Belfast, UK.,Clinical Oncology, Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast, UK
| |
Collapse
|
21
|
Fourquet J, Crop F, Lacornerie T, Tresch E, Le Tinier F, Horn S, Vasseur F, Lartigau E, Pasquier D. EP-1180: Postoperative IMRT with helical tomotherapy for breast cancer: outcome and toxicity analysis. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32430-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
22
|
Horn S, Fournier-Bidoz N, Pernin V, Peurien D, Vaillant M, Dendale R, Fourquet A, Kirova YM. Comparison of passive-beam proton therapy, helical tomotherapy and 3D conformal radiation therapy in Hodgkin's lymphoma female patients receiving involved-field or involved site radiation therapy. Cancer Radiother 2016; 20:98-103. [PMID: 26992750 DOI: 10.1016/j.canrad.2015.11.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 09/23/2015] [Accepted: 11/09/2015] [Indexed: 01/10/2023]
Abstract
PURPOSE Second cancers and cardiovascular toxicities are long term radiation toxicity in locally advanced Hodgkin's lymphomas. In this study, we evaluate the potential reduction of dose to normal tissue with helical tomotherapy and proton therapy for Hodgkin's lymphoma involved-field or involved-site irradiation compared to standard 3D conformal radiation therapy. PATIENTS AND METHODS Fourteen female patients with supradiaphragmatic Hodgkin's lymphoma were treated at our institution with 3D conformal radiation therapy or helical tomotherapy to a dose of 30Gy in 15 fractions. A planning comparison was achieved including proton therapy with anterior/posterior passive scattered beams weighted 20Gy/10Gy. RESULTS Mean doses to breasts, lung tissue and heart with proton therapy were significantly lower compared to helical tomotherapy and to 3D conformal radiation therapy. Helical tomotherapy assured the best protection of lungs from doses above 15Gy with the V20Gy equal to 16.4%, compared to 19.7% for proton therapy (P=0.01) or 22.4% with 3D conformal radiation therapy (P<0.01). Volumes of lung receiving doses below 15Gy were significantly larger for helical tomotherapy than for proton therapy or 3D conformal radiation therapy, with respective lung doses V10Gy=37.2%, 24.6% and 27.4%. Also, in the domain of low doses, the volumes of breast that received more than 10Gy or more than 4Gy with helical tomotherapy were double the corresponding volumes for proton therapy, with V4Gy representing more than a third of one breast volume with helical tomotherapy. CONCLUSIONS Helical tomotherapy achieved a better protection to the lungs for doses above 15Gy than passive proton therapy or 3D conformal radiation therapy. However, dose distributions could generally be improved by using protons even with our current passive-beam technology, especially allowing less low dose spreading and better breast tissue sparing, which is an important factor to consider when treating Hodgkin's lymphomas in female patients. Prospective clinical study is needed to evaluate the tolerance and confirm these findings.
Collapse
Affiliation(s)
- S Horn
- Department of Radiation Oncology, institut Curie, 26, rue d'Ulm, 75005 Paris, France
| | - N Fournier-Bidoz
- Department of Radiation Oncology, institut Curie, 26, rue d'Ulm, 75005 Paris, France
| | - V Pernin
- Department of Radiation Oncology, institut Curie, 26, rue d'Ulm, 75005 Paris, France
| | - D Peurien
- Department of Radiation Oncology, institut Curie, 26, rue d'Ulm, 75005 Paris, France
| | - M Vaillant
- Department of Radiation Oncology, institut Curie, 26, rue d'Ulm, 75005 Paris, France
| | - R Dendale
- Department of Radiation Oncology, institut Curie, 26, rue d'Ulm, 75005 Paris, France
| | - A Fourquet
- Department of Radiation Oncology, institut Curie, 26, rue d'Ulm, 75005 Paris, France
| | - Y M Kirova
- Department of Radiation Oncology, institut Curie, 26, rue d'Ulm, 75005 Paris, France.
| |
Collapse
|
23
|
van Zadelhoff GJ, Donovan D, Wandinger U, Daou D, Horn S, Hunerbein A, Fischer J, von Bismarck J, Filipitsch F, Docter N, Eisinger M, Lajas D, Wehr T. Overview of the Earthcare L2 Lidar Retrieval Chain. EPJ Web of Conferences 2016. [DOI: 10.1051/epjconf/201611901003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
24
|
Gould R, McFadden SL, Horn S, Prise KM, Doyle P, Hughes CM. Assessment of DNA double-strand breaks induced by intravascular iodinated contrast media followingin vitroirradiation andin vivo,during paediatric cardiac catheterization. Contrast Media Mol Imaging 2015; 11:122-9. [DOI: 10.1002/cmmi.1671] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 08/10/2015] [Accepted: 09/17/2015] [Indexed: 01/01/2023]
Affiliation(s)
- Richard Gould
- Institute of Nursing and Health Research; Ulster University; Jordanstown Campus, Shore Road Newtownabbey BT37 OQB UK
| | - Sonyia L. McFadden
- Institute of Nursing and Health Research; Ulster University; Jordanstown Campus, Shore Road Newtownabbey BT37 OQB UK
| | - Simon Horn
- Centre for Cancer Research and Cell Biology; Queens University Belfast; 97 Lisburn Road Belfast BT9 7AE UK
| | - Kevin M. Prise
- Centre for Cancer Research and Cell Biology; Queens University Belfast; 97 Lisburn Road Belfast BT9 7AE UK
| | - Philip Doyle
- Regional Medical Physics Service, Belfast Health and Social Care Trust; Foster Green Hospital; 110 Saintfield Road Belfast BT8 6HD UK
| | - Ciara M. Hughes
- Institute of Nursing and Health Research; Ulster University; Jordanstown Campus, Shore Road Newtownabbey BT37 OQB UK
| |
Collapse
|
25
|
Kirova Y, Horn S, Fournier-Bidoz N. Proton Therapy Used for Breast Sparing in Localized Mediastinal Hodgkin’s Lymphoma in Young Female Patients. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
26
|
Geserick P, Wang J, Schilling R, Horn S, Harris PA, Bertin J, Gough PJ, Feoktistova M, Leverkus M. Absence of RIPK3 predicts necroptosis resistance in malignant melanoma. Cell Death Dis 2015; 6:e1884. [PMID: 26355347 PMCID: PMC4650439 DOI: 10.1038/cddis.2015.240] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 07/07/2015] [Accepted: 07/13/2015] [Indexed: 12/14/2022]
Abstract
Acquired or intrinsic resistance to apoptotic and necroptotic stimuli is considered a major hindrance of therapeutic success in malignant melanoma. Inhibitor of apoptosis proteins (IAPs) are important regulators of apoptotic and necroptotic cell death mediated by numerous cell death signalling platforms. In this report we investigated the impact of IAPs for cell death regulation in malignant melanoma. Suppression of IAPs strongly sensitized a panel of melanoma cells to death ligand-induced cell death, which, surprisingly, was largely mediated by apoptosis, as it was completely rescued by addition of caspase inhibitors. Interestingly, the absence of necroptosis signalling correlated with a lack of receptor-interacting protein kinase-3 (RIPK3) mRNA and protein expression in all cell lines, whereas primary melanocytes and cultured nevus cells strongly expressed RIPK3. Reconstitution of RIPK3, but not a RIPK3-kinase dead mutant in a set of melanoma cell lines overcame CD95L/IAP antagonist-induced necroptosis resistance independent of autocrine tumour necrosis factor secretion. Using specific inhibitors, functional studies revealed that RIPK3-mediated mixed-lineage kinase domain-like protein (MLKL) phosphorylation and necroptosis induction critically required receptor-interacting protein kinase-1 signalling. Furthermore, the inhibitor of mutant BRAF Dabrafenib, but not Vemurafenib, inhibited necroptosis in melanoma cells whenever RIPK3 is present. Our data suggest that loss of RIPK3 in melanoma and selective inhibition of the RIPK3/MLKL axis by BRAF inhibitor Dabrafenib, but not Vemurafenib, is critical to protect from necroptosis. Strategies that allow RIPK3 expression may allow unmasking the necroptotic signalling machinery in melanoma and points to reactivation of this pathway as a treatment option for metastatic melanoma.
Collapse
Affiliation(s)
- P Geserick
- Section of Molecular Dermatology, Department of Dermatology, Venerology and Allergology, Medical Faculty Mannheim, University Heidelberg, Mannheim, Germany
| | - J Wang
- Section of Molecular Dermatology, Department of Dermatology, Venerology and Allergology, Medical Faculty Mannheim, University Heidelberg, Mannheim, Germany.,Department for Dermatology and Allergology, University Hospital Aachen, RWTH Aachen, Aachen, Germany
| | - R Schilling
- Section of Molecular Dermatology, Department of Dermatology, Venerology and Allergology, Medical Faculty Mannheim, University Heidelberg, Mannheim, Germany
| | - S Horn
- Section of Molecular Dermatology, Department of Dermatology, Venerology and Allergology, Medical Faculty Mannheim, University Heidelberg, Mannheim, Germany
| | - P A Harris
- Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA 19426, USA
| | - J Bertin
- Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA 19426, USA
| | - P J Gough
- Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA 19426, USA
| | - M Feoktistova
- Section of Molecular Dermatology, Department of Dermatology, Venerology and Allergology, Medical Faculty Mannheim, University Heidelberg, Mannheim, Germany.,Department for Dermatology and Allergology, University Hospital Aachen, RWTH Aachen, Aachen, Germany
| | - M Leverkus
- Section of Molecular Dermatology, Department of Dermatology, Venerology and Allergology, Medical Faculty Mannheim, University Heidelberg, Mannheim, Germany.,Department for Dermatology and Allergology, University Hospital Aachen, RWTH Aachen, Aachen, Germany
| |
Collapse
|
27
|
Horn S, Brady D, Prise K. Alpha particles induce pan-nuclear phosphorylation of H2AX in primary human lymphocytes mediated through ATM. Biochim Biophys Acta 2015; 1853:2199-206. [PMID: 26116906 DOI: 10.1016/j.bbamcr.2015.06.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 06/12/2015] [Accepted: 06/19/2015] [Indexed: 12/01/2022]
Abstract
The use of high linear energy transfer radiations in the form of carbon ions in heavy ion beam lines or alpha particles in new radionuclide treatments has increased substantially over the past decade and will continue to do so due to the favourable dose distributions they can offer versus conventional therapies. Previously it has been shown that exposure to heavy ions induces pan-nuclear phosphorylation of several DNA repair proteins such as H2AX and ATM in vitro. Here we describe similar effects of alpha particles on ex vivo irradiated primary human peripheral blood lymphocytes. Following alpha particle irradiation pan-nuclear phosphorylation of H2AX and ATM, but not DNA-PK and 53BP1, was observed throughout the nucleus. Inhibition of ATM, but not DNA-PK, resulted in the loss of pan-nuclear phosphorylation of H2AX in alpha particle irradiated lymphocytes. Pan-nuclear gamma-H2AX signal was rapidly lost over 24h at a much greater rate than foci loss. Surprisingly, pan-nuclear gamma-H2AX intensity was not dependent on the number of alpha particle induced double strand breaks, rather the number of alpha particles which had traversed the cell nucleus. This distinct fluence dependent damage signature of particle radiation is important in both the fields of radioprotection and clinical oncology in determining radionuclide biological dosimetry and may be indicative of patient response to new radionuclide cancer therapies.
Collapse
Affiliation(s)
- Simon Horn
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast 7AE BT9, United Kingdom.
| | - Darren Brady
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast 7AE BT9, United Kingdom; Northern Ireland Cancer Centre, Belfast Health and Social Care Trust, Belfast 7AE BT9, United Kingdom
| | - Kevin Prise
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast 7AE BT9, United Kingdom
| |
Collapse
|
28
|
Brady D, Horn S, Yakkundi S, McGarry C, Hounsell A, Prise K, O'Sullivan J. PO-0739: Plasma citrulline is a potential biomarker for small bowel toxicity following radiotherapy for prostate cancer. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40731-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
29
|
Dropmann S, Horn S, Hahner S. Disease burden and hypocalcemic emergencies in chronic hypoparathyroidism – A patient survey. Exp Clin Endocrinol Diabetes 2015. [DOI: 10.1055/s-0035-1547748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
30
|
Frey K, Burger-Stritt S, Horn S, Willinger B, Fassnacht M, Allolio B, Hahner S. Successful treatment of two patients with refractory hypoparathyroidism by continuous subcutaneous administration of recombinant PTH (1 – 34). Exp Clin Endocrinol Diabetes 2015. [DOI: 10.1055/s-0035-1547618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
31
|
Schaller A, Ullrich A, Horn S, Volkmer D. Selective growth of MFU-4l single crystals on microstructured plasma polymer coatings. Chem Commun (Camb) 2015; 51:12494-6. [DOI: 10.1039/c5cc04048e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Crystals of the metal–organic framework Ulm-4l(arge) grow site selectively and with 〈1 0 0〉 orientation on microtextured plasma polymer coatings.
Collapse
Affiliation(s)
- A. Schaller
- University of Augsburg
- Chair of Solid State & Materials Chemistry
- Augsburg
- Germany
| | - A. Ullrich
- University of Augsburg
- Chair of Experimental Physics II
- Augsburg
- Germany
| | - S. Horn
- University of Augsburg
- Chair of Experimental Physics II
- Augsburg
- Germany
| | - D. Volkmer
- University of Augsburg
- Chair of Solid State & Materials Chemistry
- Augsburg
- Germany
| |
Collapse
|
32
|
Zweiker D, Horn S, Hoell A, Seitz S, Walter D, Trop M. Semi-permanent skin staining associated with silver-coated wound dressing Acticoat. Ann Burns Fire Disasters 2014; 27:197-200. [PMID: 26336367 PMCID: PMC4544430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Indexed: 06/05/2023]
Abstract
A 17-year-old male with burns to 8% of his total body surface area was treated for 10 days with Acticoat(®), a nanocrystalline silver dressing. The burns, which were on his back and shoulder, healed without infection. However, a skin discoloration in the wound area and the adjacent uninjured skin appeared in the first days of treatment. The staining remained visible even after the treatment had ended and disappeared approximately three years later. Despite the outstanding antimicrobial properties, possible side effects of silver nanocrystalline dressings should be kept in mind.
Collapse
Affiliation(s)
- D. Zweiker
- Children’s Burns Unit, Department of Paediatrics, Medical University of Graz, Austria
| | - S. Horn
- Children’s Burns Unit, Department of Paediatrics, Medical University of Graz, Austria
| | - A. Hoell
- Children’s Burns Unit, Department of Paediatrics, Medical University of Graz, Austria
| | - S. Seitz
- Children’s Burns Unit, Department of Paediatrics, Medical University of Graz, Austria
| | - D. Walter
- Children’s Burns Unit, Department of Paediatrics, Medical University of Graz, Austria
| | - M. Trop
- Children’s Burns Unit, Department of Paediatrics, Medical University of Graz, Austria
| |
Collapse
|
33
|
Turner SG, Kazmi SA, Gergel T, Belles L, Whitmire A, Horn S, Lacroix M, Toms SA. CB-16 * MALIGNANT GLIOMA WITH PRIMITIVE NEUROECTODERMAL COMPONENTS: CLINICAL AND PATHOLOGIC FEATURES OF FIVE CASES. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou241.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
34
|
Chua MLK, Horn S, Somaiah N, Davies S, Gothard L, A'Hern R, Yarnold J, Rothkamm K. DNA double-strand break repair and induction of apoptosis in ex vivo irradiated blood lymphocytes in relation to late normal tissue reactions following breast radiotherapy. Radiat Environ Biophys 2014; 53:355-64. [PMID: 24622963 DOI: 10.1007/s00411-014-0531-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Accepted: 02/24/2014] [Indexed: 06/03/2023]
Abstract
This study aimed to test whether induction of apoptosis following ex vivo X-irradiation of unstimulated blood lymphocytes correlated with clinical radiosensitivity and DNA double-strand break (DSB) repair in breast radiotherapy patients and healthy volunteers. Using small molecule inhibitors, the relationship between DSB repair and radiation-induced apoptosis was examined. Sixteen breast cancer patients with minimal (controls, n = 8) or extremely marked late radiation-induced change (cases, n = 8) and eight healthy volunteers were selected. DSBs were quantified by γH2AX/53BP1 immunofluorescence, and apoptosis was measured using a fluorogenic inhibitor of caspases assay. Mean γH2AX/53BP1 focus levels 24 h after exposure to 4 Gy were higher in cases (12.7 foci per cell) than in controls (10.3 foci per cell, p = 0.002). In contrast, the mean apoptotic fraction 48 h after 8 Gy was comparable, 37.2 % in cases and 34.7 % in controls (p = 0.442). Residual focus and apoptosis levels were not correlated within individuals (Spearman's R = -0.0059, p = 0.785). However, cells treated with DNA-PK inhibitor Nu7441 had higher focus and apoptosis levels 48 h after 1 Gy compared to mock-treated cells, suggesting that apoptosis induction following irradiation is modulated by DSB repair. This effect required functional ATM since cells treated simultaneously with Nu7441 and the ATM inhibitor Ku55933 were resistant to apoptosis despite high levels of residual foci. One clinical case displayed an impaired DNA-PK-dependent end-joining cellular phenotype. In summary, clinical radiosensitivity may be associated with impaired DSB repair in some patients. Although pharmaceutical inhibition of ATM and DNA-PK affected apoptosis induction and DSB repair, no association was observed between apoptosis and residual focus levels in patients and volunteers.
Collapse
Affiliation(s)
- Melvin Lee Kiang Chua
- Public Health England, Centre for Radiation, Chemical and Environmental Hazards, Chilton, OX11 0RQ, UK
| | | | | | | | | | | | | | | |
Collapse
|
35
|
Bornstein J, McCullough K, Combe C, Bieber B, Jadoul M, Pisoni R, Mariani L, Robinson B, Saito A, Sen A, Tentori F, Guinsburg A, Marelli C, Marcelli D, Usvyat L, Maddux D, Canaud B, Kotanko P, Hwang SJ, Hsieh HM, Chen HF, Mau LW, Lin MY, Hsu CC, Yang WC, Pitcher D, Rao A, Phelps R, Canaud B, Barbieri C, Marcelli D, Bellocchio F, Bowry S, Mari F, Amato C, Gatti E, Zitt E, Hafner-Giessauf H, Wimmer B, Herr A, Horn S, Friedl C, Sprenger-Maehr H, Kramar R, Rosenkranz AR, Lhotta K, Ferris M, Marcelli D, Marelli C, Etter M, Xu X, Grassmann A, Von Gersdorff GD, Pecoits-Filho R, Sylvestre L, Kotanko P, Usvyat L, Consortium M, Dzekova-Vidimliski P, Nikolov I, Trajceska L, Selim G, Gelev S, Matevska Geshkovska N, Dimovski A, Sikole A, Suleymanlar G, Utas C, Ecder T, Ates K, Bieber B, Robinson BM, Pisoni RL, Laplante S, Liu FX, Culleton B, Tomilina N, Bikbov B, Andrusev A, Zemchenkov A, Bieber B, Robinson BM, Pisoni RL, Bikbov B, Tomilina N, Kotenko O, Andrusev A, Panaye M, Jolivot A, Lemoine S, Guebre-Egziabher F, Doret M, Juillard L, Filiopoulos V, Hadjiyannakos D, Papakostoula A, Takouli L, Biblaki D, Dounavis A, Vlassopoulos D, Bikbov B, Tomilina N, Al Wakeel J, Bieber B, Al Obaidli AA, Ahmed Almaimani Y, Al-Arrayed S, Alhelal B, Fawzy A, Robinson BM, Pisoni RL, Aucella F, Girotti G, Gesuete A, Cicchella A, Seresin C, Vinci C, Scaparrotta G, Naso A, Pilotto A, Hoffmann TR, Flusser V, Santoro LF, Almeida FA, Aucella F, Girotti G, Gesuete A, Cicchella A, Seresin C, Vinci C, Scaparrotta G, Ganugi S, Gnerre T, Russo GE, Amato M, Naso A, Pilotto A, Trigka K, Douzdampanis P, Chouchoulis K, Mpimpi A, Kaza M, Pipili C, Kyritsis I, Fourtunas C, Ortalda V, Tomei P, Ybarek T, Lupo A, Torreggiani M, Esposito V, Catucci D, Arazzi M, Colucci M, Montagna G, Semeraro L, Efficace E, Piazza V, Picardi L, Esposito C, Hekmat R, Mohebi M, Ahmadzadehhashemi S, Park J, Hwang E, Jang M, Park S, Resende LL, Dantas MA, Martins MTS, Lopes GB, Lopes AA, Engelen W, Elseviers M, Gheuens E, Colson C, Muyshondt I, Daelemans R, He Y, Chen J, Luan S, Wan Q, Cuoghi A, Bellei E, Monari E, Bergamini S, Tomasi A, Atti M, Caiazzo M, Palladino G, Bruni F, Tekce H, Ozturk S, Aktas G, Kin Tekce B, Erdem A, Uyeturk U, Ozyasar M, Taslamacioglu Duman T, Yazici M, Schaubel DE, McCullough KP, Morgenstern H, Gallagher MP, Hasegawa T, Pisoni RL, Robinson BM, Nacak H, Van Diepen M, Suttorp MM, Hoorn EJ, Rotmans JI, Dekker FW, Speyer E, Beauger D, Gentile S, Isnard Bagnis C, Caille Y, Baudelot C, Mercier S, Jacquelinet C, Briancon S, Sosorburam T, Baterdene B, Delger A, Daelemans R, Gheuens E, Engelen W, De Boeck K, Marynissen J, Bouman K, Mann M, Exner DV, Hemmelgarn BR, Hanley D, Ahmed SB. DIALYSIS. EPIDEMIOLOGY, OUTCOME RESEARCH, HEALTH SERVICES 2. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
36
|
Hönes S, Horn S, Boelen A, Zwanziger D, Führer D, Heuer H, Moeller LC. Protocols for induction of hypothyroidism in mice validated by gene expression in liver and heart. Exp Clin Endocrinol Diabetes 2014. [DOI: 10.1055/s-0034-1372160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
37
|
Matthes R, Hübner NO, Bender C, Koban I, Horn S, Bekeschus S, Weltmann KD, Kocher T, Kramer A, Assadian O. Efficacy of different carrier gases for barrier discharge plasma generation compared to chlorhexidine on the survival of Pseudomonas aeruginosa embedded in biofilm in vitro. Skin Pharmacol Physiol 2014; 27:148-57. [PMID: 24434726 DOI: 10.1159/000353861] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Accepted: 06/19/2013] [Indexed: 11/19/2022]
Abstract
Because of its antimicrobial properties, nonthermal plasma could serve as an alternative to chemical antisepsis in wound treatment. Therefore, this study investigated the inactivation of biofilm-embedded Pseudomonas aeruginosa SG81 by a surface barrier-discharged (SBD) plasma for 30, 60, 150 and 300 s. In order to optimize the efficacy of the plasma, different carrier gases (argon, argon admixed with 1% oxygen, and argon with increased humidity up to approx. 80%) were tested and compared against 0.1% chlorhexidine digluconate (CHG) exposure for 600 s. The antimicrobial efficacy was determined by calculating the difference between the numbers of colony-forming units (CFU) of treated and untreated biofilms. Living bacteria were distinguished from dead by fluorescent staining and confocal laser scanning microscopy. Both SBD plasmas and CHG showed significant antimicrobial effects compared to the untreated control. However, plasma treatment led to a higher antimicrobial reduction (argon plasma 4.9 log10 CFU/cm(2), argon with admixed oxygen 3 log10 CFU/cm(2), and with increased gas humidity 2.7 log10 CFU/cm(2) after 300 s) compared to CHG. In conclusion, SBD plasma is suitable as an alternative to CHG for inactivation of Pseudomonas aeruginosa embedded in biofilm. Further development of SBD plasma sources and research on the role of carrier gases and humidity may allow their clinical application for wound management in the future.
Collapse
Affiliation(s)
- R Matthes
- Institute for Hygiene and Environmental Medicine, University of Greifswald, Greifswald, Germany
| | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Brady D, Horn S, Mitchell D, Prise K, O'Sullivan J. EP-1936: Gamma H2AX and 53BP1 foci in lymphocytes correlate with rectal dosimetry in low dose rate I125 prostate brachytherapy. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)32054-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
39
|
Horn S, Mirabel X, Lacornerie T, Lartigau E, Labalette P. EP-1394: Fractionated stereotactic radiation with CyberKnifeÆ for uveal melanoma : early results. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31512-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
40
|
Horn S, Barnard S, Brady D, Prise KM, Rothkamm K. Combined analysis of gamma-H2AX/53BP1 foci and caspase activation in lymphocyte subsets detects recent and more remote radiation exposures. Radiat Res 2013; 180:603-9. [PMID: 24219325 DOI: 10.1667/rr13342.1] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Analysis of gamma-H2AX foci in blood lymphocytes is a promising approach for rapid dose estimation to support patient triage after a radiation accident but has one major drawback: the rapid decline of foci levels post-exposure cause major uncertainties in situations where the exact timing between exposure and blood sampling is unknown. To address this issue, radiation-induced apoptosis (RIA) in lymphocytes was investigated using fluorogenic inhibitors of caspases (FLICA) as an independent biomarker for radiation exposure, which may complement the gamma-H2AX assay. Ex vivo X-irradiated peripheral blood lymphocytes from 17 volunteers showed dose- and time-dependent increases in radiation-induced apoptosis over the first 3 days after exposure, albeit with considerable interindividual variation. Comparison with gamma-H2AX and 53BP1 foci counts suggested an inverse correlation between numbers of residual foci and radiation-induced apoptosis in lymphocytes at 24 h postirradiation (P = 0.007). In T-helper (CD4), T-cytotoxic (CD8) and B-cells (CD19), some significant differences in radiation induced DSBs or apoptosis were observed, however no correlation between foci and apoptosis in lymphocyte subsets was observed at 24 h postirradiation. While gamma-H2AX and 53BP1 foci were rapidly induced and then repaired after exposure, radiation-induced apoptosis did not become apparent until 24 h after exposure. Data from six volunteers with different ex vivo doses and post-exposure times were used to test the capability of the combined assay. Results show that simultaneous analysis of gamma-H2AX and radiation-induced apoptosis may provide a rapid and more accurate triage tool in situations where the delay between exposure and blood sampling is unknown compared to gamma-H2AX alone. This combined approach may improve the accuracy of dose estimations in cases where blood sampling is performed days after the radiation exposure.
Collapse
Affiliation(s)
- Simon Horn
- a Public Health England Centre for Radiation, Chemical and Environmental Hazards, Chilton, Didcot, Oxon, OX11 0RQ, United Kingdom; and
| | | | | | | | | |
Collapse
|
41
|
Horn S, Mirabel X, Lacornerie T, Labalette P, Lartigau E. Irradiation stéréotaxique fractionnée par CyberKnife® des mélanomes choroïdiens : contrôle et tolérance. Cancer Radiother 2013. [DOI: 10.1016/j.canrad.2013.07.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
42
|
Rothkamm K, Horn S, Scherthan H, Rössler U, De Amicis A, Barnard S, Kulka U, Lista F, Meineke V, Braselmann H, Beinke C, Abend M. Laboratory intercomparison on the γ-H2AX foci assay. Radiat Res 2013; 180:149-55. [PMID: 23883318 DOI: 10.1667/rr3238.1] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The focus of the study is an intercomparison of laboratories' dose-assessment performances using the γ-H2AX foci assay as a diagnostic triage tool for rapid individual radiation dose assessment. Homogenously X-irradiated (240 kVp, 1 Gy/min) blood samples for establishing calibration data (0.25-4 Gy) as well as blinded test samples (0.1-6.4 Gy) were incubated at 37°C for 2 and 24 h (repair time) and sent to the participants. The foci assay was performed according to protocols individually established in participating laboratories and therefore varied. The time taken to report dose estimates was documented for each laboratory. Additional information concerning laboratory organization/characteristics as well as assay performance was collected. The mean absolute difference (MAD) of estimated doses relative to the actual doses was calculated and radiation doses were merged into four triage categories reflecting clinical relevance to calculate accuracy, sensitivity and specificity. First γ-H2AX based dose estimates were reported 7 h after sample receipt. Estimates were similarly accurate for 2 and 24 h repair times, providing scope for its use in the early phase of a radiation exposure incident. Equal accuracy was achieved by scoring 20, 30, 40 or 50 cells per sample. However, MAD values of 0.5-0.7 Gy and 1.3-1.7 Gy divided the data sets into two groups, driven mainly by the considerable differences in foci yields between calibration and blind samples. Foci yields also varied dramatically between laboratories, highlighting reproducibility issues as an important caveat of the foci assay. Nonetheless, foci counts could distinguish high- and low-dose samples in all data sets and binary dose categories of clinical significance could be discriminated with satisfactory accuracy (mean 84%, ±0.03 SEM). Overall, the results suggest that the γ-H2AX assay is a useful tool for rapidly screening individuals for significant exposures that occurred up to at least 24 h earlier, and may help to prioritize cytogenetic dosimetry follow-up.
Collapse
Affiliation(s)
- K Rothkamm
- Public Health England, Centre for Radiation, Chemical and Environmental Hazards, Chilton, Didcot, Oxon OX11 0RQ, United Kingdom
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Horn S, Lewitzka F, Kraume M. Charakterisierung und Simulation eines Milli-Mischers zur Auflösung von schwerlöslichen Feststoffen. CHEM-ING-TECH 2012. [DOI: 10.1002/cite.201250118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
44
|
Horn S, Raabe A, Will H, Tackenberg O. TurbSeed—A model for wind dispersal of seeds in turbulent currents based on publicly available climate data. Ecol Modell 2012. [DOI: 10.1016/j.ecolmodel.2012.04.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
45
|
Richard IH, McDermott MP, Kurlan R, Lyness JM, Como PG, Pearson N, Factor SA, Juncos J, Serrano Ramos C, Brodsky M, Manning C, Marsh L, Shulman L, Fernandez HH, Black KJ, Panisset M, Christine CW, Jiang W, Singer C, Horn S, Pfeiffer R, Rottenberg D, Slevin J, Elmer L, Press D, Hyson HC, McDonald W. A randomized, double-blind, placebo-controlled trial of antidepressants in Parkinson disease. Neurology 2012; 78:1229-36. [PMID: 22496199 DOI: 10.1212/wnl.0b013e3182516244] [Citation(s) in RCA: 201] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
OBJECTIVE To evaluate the efficacy and safety of a selective serotonin reuptake inhibitor (SSRI) and a serotonin and norepinephrine reuptake inhibitor (SNRI) in the treatment of depression in Parkinson disease (PD). METHODS A total of 115 subjects with PD were enrolled at 20 sites. Subjects were randomized to receive an SSRI (paroxetine; n = 42), an SNRI (venlafaxine extended release [XR]; n = 34), or placebo (n = 39). Subjects met DSM-IV criteria for a depressive disorder, or operationally defined subsyndromal depression, and scored >12 on the first 17 items of the Hamilton Rating Scale for Depression (HAM-D). Subjects were followed for 12 weeks (6-week dosage adjustment, 6-week maintenance). Maximum daily dosages were 40 mg for paroxetine and 225 mg for venlafaxine XR. The primary outcome measure was change in the HAM-D score from baseline to week 12. RESULTS Treatment effects (relative to placebo), expressed as mean 12-week reductions in HAM-D score, were 6.2 points (97.5% confidence interval [CI] 2.2 to 10.3, p = 0.0007) in the paroxetine group and 4.2 points (97.5% CI 0.1 to 8.4, p = 0.02) in the venlafaxine XR group. No treatment effects were seen on motor function. CONCLUSIONS Both paroxetine and venlafaxine XR significantly improved depression in subjects with PD. Both medications were generally safe and well tolerated and did not worsen motor function. CLASSIFICATION OF EVIDENCE This study provides Class I evidence that paroxetine and venlafaxine XR are effective in treating depression in patients with PD.
Collapse
Affiliation(s)
- I H Richard
- University of Rochester, Rochester, NY, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Grünig J, Lyagin E, Horn S, Skale T, Kraume M. Mass transfer characteristics of liquid films flowing down a vertical wire in a counter current gas flow. Chem Eng Sci 2012. [DOI: 10.1016/j.ces.2011.10.049] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
47
|
Weaver FM, Follett KA, Stern M, Luo P, Harris CL, Hur K, Marks WJ, Rothlind J, Sagher O, Moy C, Pahwa R, Burchiel K, Hogarth P, Lai EC, Duda JE, Holloway K, Samii A, Horn S, Bronstein JM, Stoner G, Starr PA, Simpson R, Baltuch G, De Salles A, Huang GD, Reda DJ. Randomized trial of deep brain stimulation for Parkinson's disease: 36 month outcomes (copy of NEUROLOGY/2011/402453, combining disclosures to single author only). Neurology 2012. [DOI: 10.1212/4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
48
|
|
49
|
Busch A, Horn S, Muhlhausen A, Mummenhoff K, Zachgo S. Corolla Monosymmetry: Evolution of a Morphological Novelty in the Brassicaceae Family. Mol Biol Evol 2011; 29:1241-54. [DOI: 10.1093/molbev/msr297] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
50
|
Dachraoui H, Müller N, Obermeier G, Oberer C, Horn S, Heinzmann U. Interplay between electronic correlations and coherent structural dynamics during the monoclinic insulator-to-rutile metal phase transition in VO2. J Phys Condens Matter 2011; 23:435402. [PMID: 21996932 DOI: 10.1088/0953-8984/23/43/435402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report direct observations of the structural and electronic dynamics of the photoinduced insulator-metal transition in VO(2), by means of time-resolved photoemission spectroscopy. These observations provide new insights into the processes involved in this transition. Slightly above the threshold of the photoinduced phase transition, the different response times of the electrons and the lattice reveal the electronic nature of the band gap collapse. At high excitation densities, we find that the phase transition is induced nonthermally in an ultrashort time scale. Moreover, we identify different V 3p dynamics indicating the existence of different structural pathways. These results represent a clear demonstration of the potential of time-resolved core level photoelectron spectroscopy to study ultrafast dynamics in condensed matter.
Collapse
Affiliation(s)
- H Dachraoui
- Molecular and Surface Physics, Faculty of Physics, Bielefeld University, Germany.
| | | | | | | | | | | |
Collapse
|