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Buchner JA, Peeken JC, Etzel L, Ezhov I, Mayinger M, Christ SM, Brunner TB, Wittig A, Menze BH, Zimmer C, Meyer B, Guckenberger M, Andratschke N, El Shafie RA, Debus J, Rogers S, Riesterer O, Schulze K, Feldmann HJ, Blanck O, Zamboglou C, Ferentinos K, Bilger A, Grosu AL, Wolff R, Kirschke JS, Eitz KA, Combs SE, Bernhardt D, Rueckert D, Piraud M, Wiestler B, Kofler F. Identifying core MRI sequences for reliable automatic brain metastasis segmentation. Radiother Oncol 2023; 188:109901. [PMID: 37678623 DOI: 10.1016/j.radonc.2023.109901] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 08/27/2023] [Accepted: 09/01/2023] [Indexed: 09/09/2023]
Abstract
BACKGROUND Many automatic approaches to brain tumor segmentation employ multiple magnetic resonance imaging (MRI) sequences. The goal of this project was to compare different combinations of input sequences to determine which MRI sequences are needed for effective automated brain metastasis (BM) segmentation. METHODS We analyzed preoperative imaging (T1-weighted sequence ± contrast-enhancement (T1/T1-CE), T2-weighted sequence (T2), and T2 fluid-attenuated inversion recovery (T2-FLAIR) sequence) from 339 patients with BMs from seven centers. A baseline 3D U-Net with all four sequences and six U-Nets with plausible sequence combinations (T1-CE, T1, T2-FLAIR, T1-CE + T2-FLAIR, T1-CE + T1 + T2-FLAIR, T1-CE + T1) were trained on 239 patients from two centers and subsequently tested on an external cohort of 100 patients from five centers. RESULTS The model based on T1-CE alone achieved the best segmentation performance for BM segmentation with a median Dice similarity coefficient (DSC) of 0.96. Models trained without T1-CE performed worse (T1-only: DSC = 0.70 and T2-FLAIR-only: DSC = 0.73). For edema segmentation, models that included both T1-CE and T2-FLAIR performed best (DSC = 0.93), while the remaining four models without simultaneous inclusion of these both sequences reached a median DSC of 0.81-0.89. CONCLUSIONS A T1-CE-only protocol suffices for the segmentation of BMs. The combination of T1-CE and T2-FLAIR is important for edema segmentation. Missing either T1-CE or T2-FLAIR decreases performance. These findings may improve imaging routines by omitting unnecessary sequences, thus allowing for faster procedures in daily clinical practice while enabling optimal neural network-based target definitions.
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Affiliation(s)
- Josef A Buchner
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany.
| | - Jan C Peeken
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany; Deutsches Konsortium für Translationale Krebsforschung (DKTK), Partner Site Munich, Munich, Germany; Institute of Radiation Medicine (IRM), Department of Radiation Sciences (DRS), Helmholtz Center Munich, Munich, Germany
| | - Lucas Etzel
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany; Deutsches Konsortium für Translationale Krebsforschung (DKTK), Partner Site Munich, Munich, Germany
| | - Ivan Ezhov
- Department of Informatics, Technical University of Munich, Munich, Germany; TranslaTUM - Central Institute for Translational Cancer Research, Technical University of Munich, Munich, Germany
| | - Michael Mayinger
- Department of Radiation Oncology, University Hospital and University of Zurich, Zurich, Switzerland
| | - Sebastian M Christ
- Department of Radiation Oncology, University Hospital and University of Zurich, Zurich, Switzerland
| | - Thomas B Brunner
- Department of Radiation Oncology, University Hospital Magdeburg, Magdeburg, Germany
| | - Andrea Wittig
- Department of Radiotherapy and Radiation Oncology, University Hospital Jena, Friedrich-Schiller University, Jena, Germany
| | - Bjoern H Menze
- Department of Informatics, Technical University of Munich, Munich, Germany; Department of Quantitative Biomedicine, University Hospital and University of Zurich, Zurich, Switzerland
| | - Claus Zimmer
- Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Matthias Guckenberger
- Department of Radiation Oncology, University Hospital and University of Zurich, Zurich, Switzerland
| | - Nicolaus Andratschke
- Department of Radiation Oncology, University Hospital and University of Zurich, Zurich, Switzerland
| | - Rami A El Shafie
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Oncology (NCRO), Heidelberg, Germany; Department of Radiation Oncology, University Medical Center Göttingen, Göttingen, Germany
| | - Jürgen Debus
- Department of Radiation Oncology, Heidelberg University Hospital, Heidelberg, Germany; Heidelberg Institute for Radiation Oncology (HIRO), National Center for Radiation Oncology (NCRO), Heidelberg, Germany
| | - Susanne Rogers
- Radiation Oncology Center KSA-KSB, Kantonsspital Aarau, Aarau, Switzerland
| | - Oliver Riesterer
- Radiation Oncology Center KSA-KSB, Kantonsspital Aarau, Aarau, Switzerland
| | - Katrin Schulze
- Department of Radiation Oncology, General Hospital Fulda, Fulda, Germany
| | - Horst J Feldmann
- Department of Radiation Oncology, General Hospital Fulda, Fulda, Germany
| | - Oliver Blanck
- Department of Radiation Oncology, University Medical Center Schleswig Holstein, Kiel, Germany
| | - Constantinos Zamboglou
- Department of Radiation Oncology, University of Freiburg - Medical Center, Freiburg, Germany; German Cancer Consortium (DKTK), Partner Site Freiburg, Freiburg, Germany; Department of Radiation Oncology, German Oncology Center, European University of Cyprus, Limassol, Cyprus
| | - Konstantinos Ferentinos
- Department of Radiation Oncology, German Oncology Center, European University of Cyprus, Limassol, Cyprus
| | - Angelika Bilger
- Department of Radiation Oncology, University of Freiburg - Medical Center, Freiburg, Germany; German Cancer Consortium (DKTK), Partner Site Freiburg, Freiburg, Germany
| | - Anca L Grosu
- Department of Radiation Oncology, University of Freiburg - Medical Center, Freiburg, Germany; German Cancer Consortium (DKTK), Partner Site Freiburg, Freiburg, Germany
| | - Robert Wolff
- Saphir Radiosurgery Center Frankfurt and Northern Germany, Guestrow, Germany; Department of Neurosurgery, University Hospital Frankfurt, Frankfurt, Germany
| | - Jan S Kirschke
- Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Kerstin A Eitz
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany; Deutsches Konsortium für Translationale Krebsforschung (DKTK), Partner Site Munich, Munich, Germany; Institute of Radiation Medicine (IRM), Department of Radiation Sciences (DRS), Helmholtz Center Munich, Munich, Germany
| | - Stephanie E Combs
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany; Deutsches Konsortium für Translationale Krebsforschung (DKTK), Partner Site Munich, Munich, Germany; Institute of Radiation Medicine (IRM), Department of Radiation Sciences (DRS), Helmholtz Center Munich, Munich, Germany
| | - Denise Bernhardt
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany; Deutsches Konsortium für Translationale Krebsforschung (DKTK), Partner Site Munich, Munich, Germany
| | - Daniel Rueckert
- Institute for Artificial Intelligence and Informatics in Medicine, Technical University of Munich, Munich, Germany
| | - Marie Piraud
- Helmholtz AI, Helmholtz Zentrum Munich, Neuherberg, Germany
| | - Benedikt Wiestler
- TranslaTUM - Central Institute for Translational Cancer Research, Technical University of Munich, Munich, Germany; Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
| | - Florian Kofler
- Helmholtz AI, Helmholtz Zentrum Munich, Neuherberg, Germany; Department of Informatics, Technical University of Munich, Munich, Germany; TranslaTUM - Central Institute for Translational Cancer Research, Technical University of Munich, Munich, Germany; Department of Diagnostic and Interventional Neuroradiology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
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Bernhardt D, Peeken JC, Kehl V, Eitz K, Guckenberger M, Andratschke N, Mayinger MC, Lindel K, Dieckmann K, El Shafie R, Debus J, Riesterer O, Rogers S, Blanck O, Wolff R, Grosu A, Bilger A, Henkenberens C, Schulze K, Gani C, Müller AC, Radlanski K, Janssen S, Ferentinos K, Combs SE. Post-Operative Stereotactic Radiotherapy for Resected Brain Metastases: Results of the Multicenter Analysis (AURORA) of the German Working Group "Stereotactic Radiotherapy". Int J Radiat Oncol Biol Phys 2023; 117:e87-e88. [PMID: 37786203 DOI: 10.1016/j.ijrobp.2023.06.842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) While the results of prospective studies support the use of postoperative stereotactic radiotherapy (RT) to the resection cavity (RC) as the standard of care after surgery, there are several issues that need to be investigated such as factors for improving local control, risk of leptomeningeal disease and radiation necrosis. Further, the optimal dose and fractionation is still under debate. MATERIALS/METHODS The working group "Stereotactic Radiotherapy" of the German Society of Radiation Oncology (DEGRO) analyzed its multi-institutional database with 661 patients who received postoperative stereotactic RT to the RC. Treatment was performed at 13 centers between 2008 and 2021. Patient characteristics, treatment details, and follow-up data including overall survival (OS), local control (LC) were evaluated. Cox Regression and Kaplan-Meier curves with Log-rank Tests were calculated for selected variables. RESULTS In this retrospective study, overall survival was 61.5% at 1 year, 47.6% at 2 years, and 35.5% at 3 years, and local control was 84.6% at 1 year, 74.8% at 2 years, and 72.8% at 3 years. 96% of patients were treated with hypofractionated stereotactic radiotherapy (HSRT), only 26 patients received single fraction radiosurgery (4%). Prognostic factors associated with overall survival were Karnofsky Performance Status, RPA and GPA class, controlled primary tumor and absence of extracranial metastases, whereas prognostic factor associated with local control was planning target volume (23 mL or less). CONCLUSION HSRT is the most common fractionation form in the treatment of RCs in this multicenter analysis. This approach results in excellent OS and LC outcomes. OS in patients with resected brain metastases is mainly influenced by performance status. In regard to local control, RT of large cavities remain a challenge with significantly worse outcome.
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Affiliation(s)
- D Bernhardt
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany; German Cancer Consortium (DKTK), Partner Site Munich, Germany, Munich, Germany
| | - J C Peeken
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany; Institute of Radiation Medicine (IRM), Department of Radiation Sciences (DRS), Helmholtz Center Munich, Munich, Germany
| | - V Kehl
- Institute for AI and Informatics in Medicine, Munich, NA, Germany
| | - K Eitz
- Department of Radiation Oncology - Klinikum rechts der Isar, Technical University of Munich (TUM), Munich, Germany
| | - M Guckenberger
- Department of Radiation Oncology, University Hospital Zurich (USZ), University of Zurich (UZH), Zurich, Switzerland
| | - N Andratschke
- Department of Radiation Oncology, University Hospital of Zurich, University of Zurich, Zurich, Switzerland
| | - M C Mayinger
- Department of Radiation Oncology, University Hospital of Zurich, University of Zurich, Zurich, Switzerland
| | - K Lindel
- Municipal Hospital, Department for Radiation Oncology, Karlsruhe, Germany
| | - K Dieckmann
- Department of Radiation Oncology, Vienna, Austria
| | - R El Shafie
- 8Department of Radiation Oncology, University Hospital Göttingen, Göttingen, Germany
| | - J Debus
- CCU Translational Radiation Oncology, German Cancer Consortium (DKTK) Core-Center Heidelberg, National Center for Tumor Diseases (NCT), Heidelberg University Hospital (UKHD) and German Cancer Research Center (DKFZ), Heidelberg, Germany; Radiation Oncology University Hospital Heidelberg, Heidelberg, Germany
| | - O Riesterer
- Center for Radiation Oncology KSA-KSB, Cantonal Hospital Aarau, Aarau, Switzerland
| | - S Rogers
- Radiation Oncology Center KSA-KSB, Kantonsspital Aarau, Aarau, Switzerland
| | - O Blanck
- Department of Radiation Oncology, University Medical Center Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - R Wolff
- University Hospital Frankfurt, Department of Neurosurgery, Frankfurt, Germany
| | - A Grosu
- German Cancer Consortium (DKTK), Partner Site Freiburg, Freiburg, Germany; Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - A Bilger
- Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - C Henkenberens
- Department of Radiotherapy and Special Oncology, Medical School Hannover, Hannover, Germany
| | - K Schulze
- Klinikum Fulda, 36251 Bad Hersfeld, Germany
| | - C Gani
- Department of Radiation Oncology, University Hospital and Medical Faculty Tübingen, Eberhard Karls University Tübingen, Tübingen, Germany
| | - A C Müller
- Department of Radiotherapy, Klinikum Ludwigsburg, Ludwigsburg, Germany
| | - K Radlanski
- Radiation Oncology and Radiotherapy, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - S Janssen
- Department of Radiation Oncology, University of Lübeck, Lübeck, Germany
| | - K Ferentinos
- Radiation Oncology Department, German Oncology Center, Limassol, Cyprus
| | - S E Combs
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany; Institute of Innovative Radiotherapy (iRT), Department of Radiation Sciences (DRS), Helmholtz Zentrum München, Neuherberg, Germany
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Grosu AL, Frings L, Bentsalo I, Oehlke O, Brenner F, Bilger A, Fennell JT, Rothe T, Schneider-Fuchs S, Graf E, Schmoor C, Beck J, Becker G, Bock M, Egger K, Urbach H, Lahmann C, Popp I. Whole-brain irradiation with hippocampal sparing and dose escalation on metastases: neurocognitive testing and biological imaging (HIPPORAD) - a phase II prospective randomized multicenter trial (NOA-14, ARO 2015-3, DKTK-ROG). BMC Cancer 2020; 20:532. [PMID: 32513138 PMCID: PMC7281918 DOI: 10.1186/s12885-020-07011-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 05/27/2020] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Whole brain radiation therapy (WBRT) is the standard therapy for multiple brain metastases. However, WBRT has a poor local tumor control and is associated with a decline in neurocognitive function (NCF). Aim of this trial is to assess the efficacy and safety of a new treatment method, the WBRT with hippocampus avoidance (HA) combined with the simultaneous integrated boost (SIB) on metastases/resection cavities (HA-WBRT+SIB). METHODS This is a prospective, randomized, two-arm phase II multicenter trial comparing the impact of HA on NCF after HA-WBRT+SIB versus WBRT+SIB in patients with multiple brain metastases. The study design is double-blinded. One hundred thirty two patients are to be randomized with a 1:1 allocation ratio. Patients between 18 and 80 years old are recruited, with at least 4 brain metastases of solid tumors and at least one, but not exceeding 10 metastases ≥5 mm. Patients must be in good physical condition and have no metastases/resection cavities in or within 7 mm of the hippocampus. Patients with dementia, meningeal disease, cerebral lymphomas, germ cell tumors, or small cell carcinomas are excluded. Previous irradiation and resection of metastases, as well as the number and size of metastases to be boosted have to comply with certain restrictions. Patients are randomized between the two treatment arms: HA-WBRT+SIB and WBRT+SIB. WBRT is to be performed with 30 Gy in 12 daily fractions and the SIB with 51 Gy/42 Gy in 12 daily fractions on 95% of volume for metastases/resection cavities. In the experimental arm, the dose to the hippocampi is restricted to 9 Gy in 98% of the volume and 17Gy in 2% of the volume. NCF testing is scheduled before WBRT, after 3 (primary endpoint), 9, 18 months and yearly thereafter. Clinical and imaging follow-ups are performed 6 and 12 weeks after WBRT, after 3, 9, 18 months and yearly thereafter. DISCUSSION This is a protocol of a randomized phase II trial designed to test a new strategy of WBRT for preventing cognitive decline and increasing tumor control in patients with multiple brain metastases. TRIAL REGISTRATION The HIPPORAD trial is registered with the German Clinical Trials Registry (DRKS00004598, registered 2 June 2016).
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Affiliation(s)
- Anca-Ligia Grosu
- Department of Radiation Oncology, Faculty of Medicine, Medical Center - University of Freiburg, Robert-Koch-Str. 3, 79106, Freiburg, Germany
- German Cancer Consortium (DKTK), Partner Site Freiburg, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Lars Frings
- Department of Radiation Oncology, Faculty of Medicine, Medical Center - University of Freiburg, Robert-Koch-Str. 3, 79106, Freiburg, Germany
- Present affiliation: Department of Nuclear Medicine, Faculty of Medicine, Medical Center-University of Freiburg, Freiburg, Germany
| | - Iryna Bentsalo
- Department of Psychosomatic Medicine and Psychotherapy, Faculty of Medicine, Medical Center - University of Freiburg, Hauptstraße 8, 79104, Freiburg, Germany
| | - Oliver Oehlke
- Department of Radiation Oncology, Faculty of Medicine, Medical Center - University of Freiburg, Robert-Koch-Str. 3, 79106, Freiburg, Germany
- Present affiliation: Department of Radiation Oncology, Kliniken Maria Hilf GmbH Mönchengladbach, Mönchengladbach, Germany
| | - Franziska Brenner
- Department of Radiation Oncology, Faculty of Medicine, Medical Center - University of Freiburg, Robert-Koch-Str. 3, 79106, Freiburg, Germany
- Present affiliation: Department of Radiation Oncology, Ortenau-Klinikum Offenburg-Gengenbach, Offenburg, Germany
| | - Angelika Bilger
- Department of Radiation Oncology, Faculty of Medicine, Medical Center - University of Freiburg, Robert-Koch-Str. 3, 79106, Freiburg, Germany
| | - Jamina Tara Fennell
- Department of Radiation Oncology, Faculty of Medicine, Medical Center - University of Freiburg, Robert-Koch-Str. 3, 79106, Freiburg, Germany
| | - Thomas Rothe
- Department of Radiation Oncology, Faculty of Medicine, Medical Center - University of Freiburg, Robert-Koch-Str. 3, 79106, Freiburg, Germany
| | - Sabine Schneider-Fuchs
- Clinical Trials Unit, Faculty of Medicine, Medical Center - University of Freiburg, Elsässer Straße 2, 79110, Freiburg, Germany
| | - Erika Graf
- Institute of Medical Biometry and Statistics, Faculty of Medicine, Medical Center - University of Freiburg, Stefan-Meier-Str. 26, 79104, Freiburg, Germany
| | - Claudia Schmoor
- Clinical Trials Unit, Faculty of Medicine, Medical Center - University of Freiburg, Elsässer Straße 2, 79110, Freiburg, Germany
| | - Jürgen Beck
- Department of Neurosurgery, Faculty of Medicine, Medical Center - University of Freiburg, Breisacher Str. 64, 79106, Freiburg, Germany
| | - Gerhild Becker
- Department of Palliative Care, Faculty of Medicine, Medical Center - University of Freiburg, Robert-Koch-Str. 3, 79106, Freiburg, Germany
| | - Michael Bock
- German Cancer Consortium (DKTK), Partner Site Freiburg, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Medical Physics, Department of Radiology, Faculty of Medicine, Medical Center - University of Freiburg, Killian Str. 5a, 79106, Freiburg, Germany
| | - Karl Egger
- Department of Neuroradiology, Faculty of Medicine, Medical Center - University of Freiburg, Breisacher Straße 64, 79106, Freiburg, Germany
| | - Horst Urbach
- Department of Neuroradiology, Faculty of Medicine, Medical Center - University of Freiburg, Breisacher Straße 64, 79106, Freiburg, Germany
| | - Claas Lahmann
- Department of Psychosomatic Medicine and Psychotherapy, Faculty of Medicine, Medical Center - University of Freiburg, Hauptstraße 8, 79104, Freiburg, Germany
| | - Ilinca Popp
- Department of Radiation Oncology, Faculty of Medicine, Medical Center - University of Freiburg, Robert-Koch-Str. 3, 79106, Freiburg, Germany.
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Popp I, Rau S, Hintz M, Schneider J, Bilger A, Fennell JT, Heiland DH, Rothe T, Egger K, Nieder C, Urbach H, Grosu AL. Hippocampus-avoidance whole-brain radiation therapy with a simultaneous integrated boost for multiple brain metastases. Cancer 2020; 126:2694-2703. [PMID: 32142171 DOI: 10.1002/cncr.32787] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [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: 09/18/2019] [Revised: 01/12/2020] [Accepted: 01/27/2020] [Indexed: 01/14/2023]
Abstract
BACKGROUND The current study was aimed at investigating the feasibility of hippocampus-avoidance whole-brain radiation therapy with a simultaneous integrated boost (HA-WBRT+SIB) for metastases and at assessing tumor control in comparison with conventional whole-brain radiation therapy (WBRT) in patients with multiple brain metastases. METHODS Between August 2012 and December 2016, 66 patients were treated within a monocentric feasibility trial with HA-WBRT+SIB: hippocampus-avoidance WBRT (30 Gy in 12 fractions, dose to 98% of the hippocampal volume ≤ 9 Gy) and a simultaneous integrated boost (51 or 42 Gy in 12 fractions) for metastases/resection cavities. Intracranial tumor control, hippocampal failure, and survival were subsequently compared with a retrospective cohort treated with WBRT via propensity score matching analysis. RESULTS After 1:1 propensity score matching, there were 62 HA-WBRT+SIB patients and 62 WBRT patients. Local tumor control (LTC) of existing metastases was significantly higher after HA-WBRT+SIB (98% vs 82% at 1 year; P = .007), whereas distant intracranial tumor control was significantly higher after WBRT (82% vs 69% at 1 year; P = .016); this corresponded to higher biologically effective doses. Intracranial progression-free survival (PFS; 13.5 vs 6.4 months; P = .03) and overall survival (9.9 vs 6.2 months; P = .001) were significantly better in the HA-WBRT+SIB cohort. Four patients (6.5%) developed hippocampal metastases after hippocampus avoidance. The neurologic death rate after HA-WBRT+SIB was 27.4%. CONCLUSIONS HA-WBRT+SIB can be an efficient therapeutic option for patients with multiple brain metastases and is associated with improved LTC of existing metastases, higher intracranial PFS, a reduction of the neurologic death rate, and an acceptable risk of radiation necrosis. The therapy has the potential to prevent neurocognitive adverse effects, which will be further evaluated in the multicenter, phase 2 HIPPORAD trial.
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Affiliation(s)
- Ilinca Popp
- Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Stephan Rau
- Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Mandy Hintz
- Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Julius Schneider
- Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Angelika Bilger
- Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Jamina Tara Fennell
- Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Dieter Henrik Heiland
- Department of Neurosurgery, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Thomas Rothe
- Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Karl Egger
- Department of Neuroradiology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Carsten Nieder
- Department of Oncology and Palliative Medicine, Nordland Hospital, Bodø, Norway.,Department of Clinical Medicine, Faculty of Health Sciences, University of Tromsø, Tromsø, Norway
| | - Horst Urbach
- Department of Neuroradiology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Anca Ligia Grosu
- Department of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,German Cancer Consortium, Partner Site Freiburg, German Cancer Research Center Heidelberg, Freiburg, Germany
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Nieder C, Hintz M, Popp I, Bilger A, Grosu AL. Validation of the graded prognostic assessment for gastrointestinal cancers with brain metastases (GI-GPA). Radiat Oncol 2020; 15:35. [PMID: 32054485 PMCID: PMC7020357 DOI: 10.1186/s13014-020-1484-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 11/25/2019] [Accepted: 02/04/2020] [Indexed: 02/06/2023] Open
Abstract
PURPOSE The purpose of this study was to validate a new prognostic model (GI-GPA) originally derived from a multi-center database (USA, Canada, Japan). PATIENTS AND METHODS This retrospective study included 92 German and Norwegian patients treated with individualized approaches, always including brain radiotherapy. Information about age, extracranial spread, number of brain metastases, performance status and other variables was collected. The GI-GPA score was calculated as described by Sperduto et al. RESULTS: Median survival was 4 months. The corresponding figures for the 4 different prognostic strata were 2.3, 4.4, 9.4 and 12.7 months, respectively (p = 0.0001). Patients whose management included surgical resection had longer median survival than those who were treated with other approaches (median 11.9 versus 3.0 months, p = 0.002). Comparable results were seen for additional systemic therapy (median 8.5 versus 3.5 months, p = 0.01). CONCLUSION These results confirm the validity of the GI-GPA in an independent dataset from a different geographical region, despite the fact that overall survival was shorter in all prognostic strata, compared to Sperduto et al. Potential explanations include differences in molecular tumor characteristics and treatment selection, both brain metastases-directed and extracranially. Long-term survival beyond 5 years is possible in a small minority of patients.
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Affiliation(s)
- Carsten Nieder
- Department of Oncology and Palliative Medicine, Nordland Hospital, 8092, Bodø, Norway. .,Department of Clinical Medicine, Faculty of Health Sciences, University of Tromsø, 9037, Tromsø, Norway.
| | - Mandy Hintz
- Department of Radiation Oncology, University Hospital Freiburg, 79106, Freiburg, Germany
| | - Ilinca Popp
- Department of Radiation Oncology, University Hospital Freiburg, 79106, Freiburg, Germany.,German Cancer Consortium (DKTK), Partner Site Freiburg, Freiburg, Germany
| | - Angelika Bilger
- Department of Radiation Oncology, University Hospital Freiburg, 79106, Freiburg, Germany.,German Cancer Consortium (DKTK), Partner Site Freiburg, Freiburg, Germany
| | - Anca L Grosu
- Department of Radiation Oncology, University Hospital Freiburg, 79106, Freiburg, Germany.,German Cancer Consortium (DKTK), Partner Site Freiburg, Freiburg, Germany
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Combs SE, Bilger A, Diehl C, Bretzinger E, Lorenz H, Oehlke O, Specht HM, Kirstein A, Grosu A. Multicenter analysis of stereotactic radiotherapy of the resection cavity in patients with brain metastases. Cancer Med 2018; 7:2319-2327. [PMID: 29696815 PMCID: PMC6010760 DOI: 10.1002/cam4.1477] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 01/03/2018] [Accepted: 01/03/2018] [Indexed: 11/06/2022] Open
Abstract
Brain metastases show a recurrence rate of about 50% after surgical resection. Adjuvant radiotherapy can prevent progression; however, whole-brain radiotherapy (WBRT) can be associated with significant side effects. Local hypofractionated stereotactic radiotherapy (HFSRT) is a good alternative to provide local control with minimal toxicity. In this multicenter analysis, we evaluated the treatment outcome of local HFSRT after resection brain metastases in 181 patients. Patient's characteristics, treatment data as well as follow-up data were collected and analyzed with special focus on local control, locoregional control and survival. After a median follow-up of 12.6 months (range 0.3-80.2 months), the crude rate for local control was 80.5%; 1- and 2-year local recurrence-free survival rates were 75% and 70% (median not reached). Resection cavity size was a significant predictor for local recurrence (P = 0.033). The median overall survival was 16.0 months. Both graded prognostic assessment score and recursive partitioning analysis were accurate predictors of survival. HFSRT leads to excellent local control and has a high potential to consolidate results after surgery; acute and late toxicity is low. Distant intracerebral metastases occur frequently during follow-up, and therefore, a close patient monitoring needs to be warranted if whole-brain radiotherapy is omitted.
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Affiliation(s)
- Stephanie E. Combs
- Department of Radiation OncologyTechnische Universität MünchenKlinikum rechts der IsarMünchenGermany
- Deutsches Konsortium für Translationale Krebsforschungs (dktk), Partner Site MunichMunichGermany
- Department of Radiation Sciences (DRS)Institute of Innovative Radiotherapy (iRT)Helmholtz Zentrum MünchenNeuherbergGermany
| | - Angelika Bilger
- Department of Radiation OncologyUniversitätsklinikum FreiburgFreiburgGermany
- Deutsches Konsortium für Translationale Krebsforschungs (dktk), Partner SiteFreiburgGermany
| | - Christian Diehl
- Department of Radiation OncologyTechnische Universität MünchenKlinikum rechts der IsarMünchenGermany
- Deutsches Konsortium für Translationale Krebsforschungs (dktk), Partner Site MunichMunichGermany
- Department of Radiation Sciences (DRS)Institute of Innovative Radiotherapy (iRT)Helmholtz Zentrum MünchenNeuherbergGermany
| | - Eva Bretzinger
- Department of Radiation OncologyUniversitätsklinikum FreiburgFreiburgGermany
- Deutsches Konsortium für Translationale Krebsforschungs (dktk), Partner SiteFreiburgGermany
| | - Hannah Lorenz
- Department of Radiation OncologyUniversitätsklinikum FreiburgFreiburgGermany
- Deutsches Konsortium für Translationale Krebsforschungs (dktk), Partner SiteFreiburgGermany
| | - Oliver Oehlke
- Department of Radiation OncologyUniversitätsklinikum FreiburgFreiburgGermany
- Deutsches Konsortium für Translationale Krebsforschungs (dktk), Partner SiteFreiburgGermany
| | - Hanno M. Specht
- Department of Radiation OncologyTechnische Universität MünchenKlinikum rechts der IsarMünchenGermany
- Deutsches Konsortium für Translationale Krebsforschungs (dktk), Partner Site MunichMunichGermany
- Department of Radiation Sciences (DRS)Institute of Innovative Radiotherapy (iRT)Helmholtz Zentrum MünchenNeuherbergGermany
| | - Anna Kirstein
- Department of Radiation OncologyTechnische Universität MünchenKlinikum rechts der IsarMünchenGermany
- Deutsches Konsortium für Translationale Krebsforschungs (dktk), Partner Site MunichMunichGermany
- Department of Radiation Sciences (DRS)Institute of Innovative Radiotherapy (iRT)Helmholtz Zentrum MünchenNeuherbergGermany
| | - Anca‐Ligia Grosu
- Department of Radiation OncologyUniversitätsklinikum FreiburgFreiburgGermany
- Deutsches Konsortium für Translationale Krebsforschungs (dktk), Partner SiteFreiburgGermany
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Bilger A, Bretzinger E, Fennell J, Nieder C, Lorenz H, Oehlke O, Grosu A, Specht HM, Combs SE. Local control and possibility of tailored salvage after hypofractionated stereotactic radiotherapy of the cavity after brain metastases resection. Cancer Med 2018; 7:2350-2359. [PMID: 29745035 PMCID: PMC6010898 DOI: 10.1002/cam4.1486] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 03/07/2018] [Accepted: 03/09/2018] [Indexed: 02/03/2023] Open
Abstract
In patients undergoing surgical resection of brain metastases, the risk of local recurrence remains high. Adjuvant whole brain radiation therapy (WBRT) can reduce the risk of local relapse but fails to improve overall survival. At two tertiary care centers in Germany, a retrospective study was performed to evaluate the role of hypofractionated stereotactic radiotherapy (HFSRT) in patients with brain metastases after surgical resection. In particular, need for salvage treatment, for example, WBRT, surgery, or stereotactic radiosurgery (SRS), was evaluated. Both intracranial local (LF) and locoregional (LRF) failures were analyzed. A total of 181 patients were treated with HFSRT of the surgical cavity. In addition to the assessment of local control and distant intracranial control, we analyzed treatment modalities for tumor recurrence including surgical strategies and reirradiation. Imaging follow-up for the evaluation of LF and LRF was available in 159 of 181 (88%) patients. A total of 100 of 159 (63%) patients showed intracranial progression after HFSRT. A total of 81 of 100 (81%) patients received salvage therapy. Fourteen of 81 patients underwent repeat surgery, and 78 of 81 patients received radiotherapy as a salvage treatment (53% WBRT). Patients with single or few metastases distant from the initial site or with WBRT in the past were retreated by HFSRT (14%) or SRS, 33%. Some patients developed up to four metachronous recurrences, which could be salvaged successfully. Eight (4%) patients experienced radionecrosis. No other severe side effects (CTCAE≥3) were observed. Postoperative HFSRT to the resection cavity resulted in a crude rate for local control of 80.5%. Salvage therapy for intracranial progression was commonly needed, typically at distant sites. Salvage therapy was performed with WBRT, SRS, and surgery or repeated HFSRT of the resection cavity depending on the tumor spread and underlying histology. Prospective studies are warranted to clarify whether or not the sequence of these therapies is important in terms of quality of life, risk of radiation necrosis, and likelihood of neurological cause of death.
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Affiliation(s)
- Angelika Bilger
- Department of Radiation OncologyMedical Center, Medical FacultyUniversity of FreiburgFreiburg im BreisgauGermany
| | - Eva Bretzinger
- Department of Radiation OncologyMedical Center, Medical FacultyUniversity of FreiburgFreiburg im BreisgauGermany
| | - Jamina Fennell
- Department of Radiation OncologyMedical Center, Medical FacultyUniversity of FreiburgFreiburg im BreisgauGermany
| | - Carsten Nieder
- Department of Oncology and Palliative MedicineNordland HospitalBodøNorway
- Institute of Clinical Medicine, Faculty of Health SciencesUniversity of TromsøTromsøNorway
| | - Hannah Lorenz
- Department of Radiation OncologyMedical Center, Medical FacultyUniversity of FreiburgFreiburg im BreisgauGermany
| | - Oliver Oehlke
- Department of Radiation OncologyMedical Center, Medical FacultyUniversity of FreiburgFreiburg im BreisgauGermany
| | - Anca‐Ligia Grosu
- Department of Radiation OncologyMedical Center, Medical FacultyUniversity of FreiburgFreiburg im BreisgauGermany
- Deutsches Konsortium für Translationale Krebsforschung (DKTK), Partner Site FreiburgFreiburg im BreisgauGermany
| | - Hanno M. Specht
- Department of Radiation Oncology, Klinikumrechts der IsarTechnical University of MunichMunichGermany
| | - Stephanie E. Combs
- Department of Radiation Oncology, Klinikumrechts der IsarTechnical University of MunichMunichGermany
- Institute of Innovative Radiotherapy (iRT)Helmholtz Zentrum MunichOberschleißheimGermany
- Deutsches Konsortium für Translationale Krebsforschung (DKTK), Partner Site MunichMunichGermany
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Fennell J, Walter S, Oehlke O, Bilger A, Schnell O, Grosu A. PO-0726: Long term follow up of patients with meningioma after stereotactic radiation therapy (SRT). Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31036-3] [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: 10/14/2022]
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9
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Nieder C, Hintz M, Bilger A, Oehlke O, Grosu AL. Validation of the Graded Prognostic Assessment for Melanoma Using Molecular Markers (Melanoma-molGPA). J Clin Med Res 2018; 10:178-181. [PMID: 29416574 PMCID: PMC5798262 DOI: 10.14740/jocmr3248w] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 11/01/2017] [Accepted: 11/21/2017] [Indexed: 11/29/2022] Open
Abstract
Background It has been suggested to replace the diagnosis-specific graded prognostic assessment (DS-GPA, based on performance status and number of brain metastases) for patients with primary malignant melanoma with the new Melanoma-molGPA. The latter is a more complex assessment, which also includes BRAF mutation status, age and extracranial metastases. To test the performance of the Melanoma-molGPA, we performed a validation study of this new survival prediction tool. Methods A retrospective analysis of patients treated at two different academic institutions was performed. The four-tiered Melanoma-molGPA was calculated as suggested in the original study. Results Median overall survival was 5.4 months (95% confidence interval: 3.1 - 7.7 months). Median survival in the four prognostic classes was 2.1, 7.8, 11.8, and 18.0 months, respectively. The 1-year survival rates were 3%, 25%, 43%, and 80%, respectively. The difference between the Kaplan-Meier curves was significant (P = 0.0001, log-rank test). Conclusions The present survival outcomes support the use of the Melanoma-molGPA. However, survival was better in each of the four groups in the original study. Possible reasons include lead-time bias and different treatment policies.
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Affiliation(s)
- Carsten Nieder
- Department of Oncology and Palliative Medicine, Nordland Hospital, 8092 Bodo, Norway.,Institute of Clinical Medicine, Faculty of Health Sciences, University of Tromso, 9037 Tromso, Norway
| | - Mandy Hintz
- Department of Radiation Oncology, University Medical Center Freiburg, Medical Faculty Freiburg, Robert-Koch-Str.3, Freiburg, Germany
| | - Angelika Bilger
- Department of Radiation Oncology, University Medical Center Freiburg, Medical Faculty Freiburg, Robert-Koch-Str.3, Freiburg, Germany
| | - Oliver Oehlke
- Department of Radiation Oncology, University Medical Center Freiburg, Medical Faculty Freiburg, Robert-Koch-Str.3, Freiburg, Germany
| | - Anca-Ligia Grosu
- Department of Radiation Oncology, University Medical Center Freiburg, Medical Faculty Freiburg, Robert-Koch-Str.3, Freiburg, Germany.,German Cancer Consortium (DKTK), Partner Site Freiburg, Germany
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10
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Bilger A, Frenzel F, Oehlke O, Wiehle R, Milanovic D, Prokic V, Nieder C, Grosu AL. Local control and overall survival after frameless radiosurgery: A single center experience. Clin Transl Radiat Oncol 2017; 7:55-61. [PMID: 29594230 PMCID: PMC5862646 DOI: 10.1016/j.ctro.2017.09.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 08/02/2017] [Revised: 09/20/2017] [Accepted: 09/23/2017] [Indexed: 12/26/2022] Open
Abstract
Introduction Stereotactic radiosurgery (SRS) has been increasingly advocated for 1-3 small brain metastases. The goal of this study was to evaluate the clinical results in patients with brain metastases treated with LINAC-based SRS using a thermoplastic mask (non-invasive fixation system) and Image-Guided Radiotherapy (IGRT). Material and Methods In this single-institution study 48 patients with 77 brain metastases were treated between February 2012 and January 2014. The prescribed dose was 20 Gy or 18 Gy as a single fraction. SRS was performed with a True Beam STX Novalis Radiosurgery LINAC (Varian Medical Systems). The verification of positioning was done using the BrainLAB ExacTrac ® X-ray 6D system and cone-beam CT. Results In 69 of 77 treated brain metastases (90%) the follow-up was documented on MR imaging performed every 3 months. Mean follow-up time was 10.86 months. Estimated 1-year local control was 83%, using the Kaplan-Meier method. In 7/69 brain metastases (10%) local failure (LF) was diagnosed. Median progression free survival (PFS) was 3.73 months, largely due to distant brain relapse. A GTV of ≤2.0 cm3 was significantly associated with a better PFS than a GTV >2.0 cm3. Extracranial stable disease and GTV ≤2.5 cm³ were significant predictors of OS.We observed 2 cases of radiation necrosis diagnosed by histology after surgical resection. No other cases of severe side effects (CTACE ≥ 3) were observed. Conclusion LINAC-based frameless SRS with the BrainLAB Mask using the BrainLAB ExacTrac ® X-ray 6D system for patient positioning is well tolerated, safe and leads to favorable crude local control of 90%. In our experience, local control after frameless (ringless) SRS is as good as ring-based SRS reported in literature. Without invasive head fixation, radiotherapy is more comfortable for patients.
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Key Words
- Brain metastases
- CBCT, cone-beam CT
- CT, computed tomography
- CTCAE, Common Terminology Criteria for Adverse Events v4.0
- DC, distant intracranial tumor control
- DRR, digitally reconstructed radiographs
- GTV, Gross Tumor Volume
- IGRT, Image-Guided Radiotherapy
- LC, Local Control
- LINAC
- LINAC, Linear Accelerator
- OS, Overall Survival
- PFS, progression-free survival
- PTV, planning target volume
- RPA, recursive partitioning analysis
- Radiosurgery
- SRS, Stereotactic radiosurgery
- WBRT, Whole Brain Radiotherapy
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Affiliation(s)
- Angelika Bilger
- Department of Radiation Oncology, University Medical Center Freiburg, Medical Faculty Freiburg, Robert-Koch-Str.3, Freiburg, Germany
| | - Florian Frenzel
- Department of Radiation Oncology, University Medical Center Freiburg, Medical Faculty Freiburg, Robert-Koch-Str.3, Freiburg, Germany
| | - Oliver Oehlke
- Department of Radiation Oncology, University Medical Center Freiburg, Medical Faculty Freiburg, Robert-Koch-Str.3, Freiburg, Germany
| | - Rolf Wiehle
- Department of Radiation Oncology, University Medical Center Freiburg, Medical Faculty Freiburg, Robert-Koch-Str.3, Freiburg, Germany
| | - Dusan Milanovic
- Department of Radiation Oncology, University Medical Center Freiburg, Medical Faculty Freiburg, Robert-Koch-Str.3, Freiburg, Germany
| | - Vesna Prokic
- Department of Radiation Oncology, University Medical Center Freiburg, Medical Faculty Freiburg, Robert-Koch-Str.3, Freiburg, Germany.,University of Applied Sciences Koblenz, Joseph-Rovan-Allee 2, 53424 Remagen, Germany
| | - Carsten Nieder
- Department of Oncology and Palliative Medicine, Nordland Hospital, 8092 Bodø, Norway.,Institute of Clinical Medicine, Faculty of Health Sciences, University of Tromsø, 9037 Tromsø, Norway
| | - Anca-Ligia Grosu
- Department of Radiation Oncology, University Medical Center Freiburg, Medical Faculty Freiburg, Robert-Koch-Str.3, Freiburg, Germany.,German Cancer Consortium (DKTK), Partner Site Freiburg, Germany
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11
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Nieder C, Hintz M, Oehlke O, Bilger A, Grosu AL. Validation of the graded prognostic assessment for lung cancer with brain metastases using molecular markers (lung-molGPA). Radiat Oncol 2017. [PMID: 28651600 PMCID: PMC5483956 DOI: 10.1186/s13014-017-0844-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [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] [Indexed: 12/25/2022] Open
Abstract
Background Many patients with brain metastases from non-small cell lung cancer have limited survival, while others survive for several years, depending on patterns of spread, EGFR and ALK alterations, among others. The purpose of this study was to validate a new prognostic model (Lung-molGPA) originally derived from a North American database. Patients and methods This retrospective study included 269 German and Norwegian patients treated with individualized approaches, always including brain radiotherapy. Information about age, extracranial spread, number of brain metastases, performance status, histology, EGFR and ALK alterations was collected. The Lung-molGPA score was calculated as described by Sperduto et al. Results Median survival was 5.4 months. The score predicted survival in patients with adenocarcinoma histology and those with other types. For example, median survival was 3.0, 6.2, 14.7 and 25.0 months in the 4 different prognostic strata for adenocarcinoma. The corresponding figures were 2.4, 5.5 and 12.5 months in the 3 different prognostic strata for non-adenocarcinoma. Conclusions These results confirm the validity of the Lung-molGPA in an independent dataset from a different geographical region. However, median survival was shorter in 6 of 7 prognostic strata. Potential explanations include lead time bias and differences in treatment selection, both brain metastases-directed and systemically.
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Affiliation(s)
- Carsten Nieder
- Department of Oncology and Palliative Medicine, Nordland Hospital, 8092, Bodø, Norway. .,Department of Clinical Medicine, Faculty of Health Sciences, University of Tromsø, 9037, Tromsø, Norway.
| | - Mandy Hintz
- Department of Radiation Oncology, University Hospital Freiburg, 79106, Freiburg, Germany
| | - Oliver Oehlke
- Department of Radiation Oncology, University Hospital Freiburg, 79106, Freiburg, Germany.,German Cancer Consortium (DKTK), Partner Site Freiburg, Freiburg, Germany
| | - Angelika Bilger
- Department of Radiation Oncology, University Hospital Freiburg, 79106, Freiburg, Germany.,German Cancer Consortium (DKTK), Partner Site Freiburg, Freiburg, Germany
| | - Anca L Grosu
- Department of Radiation Oncology, University Hospital Freiburg, 79106, Freiburg, Germany.,German Cancer Consortium (DKTK), Partner Site Freiburg, Freiburg, Germany
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12
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Bilger A, Frenzel F, Oehlke O, Wiehle R, Milanovic D, Prokic V, Nieder C, Grosu A. EP-1106: Local control and overall survival after frameless radiosurgery. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)31542-6] [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: 11/28/2022]
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13
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Bilger A, Bretzinger E, Lorenz H, Oehlke O, Grosu A, Combs S, Specht H. EP-1107: Treatment Strategies for local and distant recurrence after HFSRT of the Resection Cavity. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)31543-8] [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: 11/24/2022]
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14
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Bilger A, Lorenz H, Milanovic D, Oehlke O, Grosu A. PO-0652: SFRT of the resection cavity in patients with one to three brain metastases. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)31902-8] [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: 10/21/2022]
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15
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Messas N, Willemain R, Bilger A, Rondeau-Lutz M, Kuhnert C, Mertes PM, Morel O, Collange O. Takotsubo syndrome triggered by acute intermittent porphyria attack: An unusual stressor for catecholamine-induced cardiomyopathy. Int J Cardiol 2016; 207:28-30. [PMID: 26788817 DOI: 10.1016/j.ijcard.2016.01.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Accepted: 01/02/2016] [Indexed: 10/22/2022]
Affiliation(s)
- N Messas
- Pole d'activité médico-chirurgicale, Nouvel Hôpital Civil, Hôpitaux universitaires de Strasbourg, France.
| | - R Willemain
- Pole Anesthésie-Réanimation Chirurgicale, SAMU, Nouvel Hôpital Civil, Hôpitaux universitaires de Strasbourg, France
| | - A Bilger
- Pole Anesthésie-Réanimation Chirurgicale, SAMU, Nouvel Hôpital Civil, Hôpitaux universitaires de Strasbourg, France
| | - M Rondeau-Lutz
- Service de médecine interne, Nouvel Hôpital Civil, Hôpitaux universitaires de Strasbourg, France
| | - C Kuhnert
- Service de médecine interne, Nouvel Hôpital Civil, Hôpitaux universitaires de Strasbourg, France
| | - P M Mertes
- Pole Anesthésie-Réanimation Chirurgicale, SAMU, Nouvel Hôpital Civil, Hôpitaux universitaires de Strasbourg, France; Laboratoire EA 3072: «Mitochondries, stress oxydant et protection musculaire», Institut de Physiologie, Faculté de Médecine, Université de Strasbourg, France
| | - O Morel
- Pole d'activité médico-chirurgicale, Nouvel Hôpital Civil, Hôpitaux universitaires de Strasbourg, France
| | - O Collange
- Pole Anesthésie-Réanimation Chirurgicale, SAMU, Nouvel Hôpital Civil, Hôpitaux universitaires de Strasbourg, France; Laboratoire EA 3072: «Mitochondries, stress oxydant et protection musculaire», Institut de Physiologie, Faculté de Médecine, Université de Strasbourg, France
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16
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Bilger A, Pottecher J, Greget M, Boudier E, Diemunsch P. Extensive pulmonary embolism after severe postpartum haemorrhage: management with an inferior vena cava filter. Int J Obstet Anesth 2014; 23:390-3. [DOI: 10.1016/j.ijoa.2014.06.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 05/18/2014] [Accepted: 06/08/2014] [Indexed: 11/28/2022]
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17
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Bilger A, Bittner MI, Grosu AL, Wiedenmann N, Meyer PT, Firat E, Niedermann G, Weber WA, Milanović D. FET-PET-based reirradiation and chloroquine in patients with recurrent glioblastoma: first tolerability and feasibility results. Strahlenther Onkol 2014; 190:957-61. [PMID: 24928248 DOI: 10.1007/s00066-014-0693-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 05/14/2014] [Indexed: 12/11/2022]
Abstract
BACKGROUND Treatment of recurrent glioblastoma (rGBM) remains an unsolved clinical problem. Reirradiation (re-RT) can be used to treat some patients with rGBM, but as a monotherapy it has only limited efficacy. Chloroquine (CQ) is an anti-malaria and immunomodulatory drug that may inhibit autophagy and increase the radiosensitivity of GBM. PATIENTS AND METHODS Between January 2012 and August 2013, we treated five patients with histologically confirmed rGBM with re-RT and 250 mg CQ daily. RESULTS Treatment was very well tolerated; no CQ-related toxicity was observed. At the first follow-up 2 months after finishing re-RT, two patients achieved partial response (PR), one patient stable disease (SD), and one patient progressive disease (PD). One patient with reirradiated surgical cavity did not show any sign of PD. CONCLUSION In this case series, we observed encouraging responses to CQ and re-RT. We plan to conduct a CQ dose escalation study combined with re-RT.
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Affiliation(s)
- Angelika Bilger
- Department of Radiation Oncology, University Medical Center Freiburg, Robert Koch Strasse 3, 79106, Freiburg, Germany
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Cormier RT, Bilger A, Lillich AJ, Halberg RB, Hong KH, Gould KA, Borenstein N, Lander ES, Dove WF. The Mom1AKR intestinal tumor resistance region consists of Pla2g2a and a locus distal to D4Mit64. Oncogene 2000; 19:3182-92. [PMID: 10918573 DOI: 10.1038/sj.onc.1203646] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The Mom1 (Modifier of Min-1) region of distal chromosome 4 was identified during a screen for polymorphic modifiers of intestinal tumorigenesis in ApcMin/+ mice. Here, we demonstrate that the Mom1AKR allele consists of two genetic components. These include the secretory phospholipase Pla2g2a, whose candidacy as a Mom1 resistance modifier has now been tested with several transgenic lines. A second region, distal to Pla2g2a, has also been identified using fine structure recombinants. Pla2g2aAKR transgenic mice demonstrate a modest resistance to tumorigenesis in the small intestine and a very robust resistance in the large intestine. Moreover, the tumor resistance in the colon of Pla2g2aAKR animals is dosage-dependent, a finding that is consistent with our observation that Pla2g2a is expressed in goblet cells. By contrast, mice carrying the distal Mom1 modifier demonstrate a modest tumor resistance that is confined to the small intestine. Thus, the phenotypes of these two modifier loci are complementary, both in their quantitative and regional effects. The additive effects and tight linkage of these modifiers may have been necessary for the initial identification of the Mom1 region.
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Affiliation(s)
- R T Cormier
- McArdle Laboratory for Cancer Research, University of Wisconsin, Madison 53706, USA
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Dickson KS, Bilger A, Ballantyne S, Wickens MP. The cleavage and polyadenylation specificity factor in Xenopus laevis oocytes is a cytoplasmic factor involved in regulated polyadenylation. Mol Cell Biol 1999; 19:5707-17. [PMID: 10409759 PMCID: PMC84422 DOI: 10.1128/mcb.19.8.5707] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
During early development, specific mRNAs receive poly(A) in the cytoplasm. This cytoplasmic polyadenylation reaction correlates with, and in some cases causes, translational stimulation. Previously, it was suggested that a factor similar to the multisubunit nuclear cleavage and polyadenylation specificity factor (CPSF) played a role in cytoplasmic polyadenylation. A cDNA encoding a cytoplasmic form of the 100-kDa subunit of Xenopus laevis CPSF has now been isolated. The protein product is 91% identical at the amino acid sequence level to nuclear CPSF isolated from Bos taurus thymus. This report provides three lines of evidence that implicate the X. laevis homologue of the 100-kDa subunit of CPSF in the cytoplasmic polyadenylation reaction. First, the protein is predominantly localized to the cytoplasm of X. laevis oocytes. Second, the 100-kDa subunit of X. laevis CPSF forms a specific complex with RNAs that contain both a cytoplasmic polyadenylation element (CPE) and the polyadenylation element AAUAAA. Third, immunodepletion of the 100-kDa subunit of X. laevis CPSF reduces CPE-specific polyadenylation in vitro. Further support for a cytoplasmic form of CPSF comes from evidence that a putative homologue of the 30-kDa subunit of nuclear CPSF is also localized to the cytoplasm of X. laevis oocytes. Overexpression of influenza virus NS1 protein, which inhibits nuclear polyadenylation through an interaction with the 30-kDa subunit of nuclear CPSF, prevents cytoplasmic polyadenylation, suggesting that the cytoplasmic X. laevis form of the 30-kDa subunit of CPSF is involved in this reaction. Together, these results indicate that a distinct, cytoplasmic form of CPSF is an integral component of the cytoplasmic polyadenylation machinery.
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Affiliation(s)
- K S Dickson
- Department of Biochemistry, College of Agricultural and Life Sciences, University of Wisconsin, Madison, Wisconsin 53706, USA
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Abstract
The Min mouse, generated by random germline mutagenesis, carries a mutation in the mouse homolog of APC and is a model of inherited human intestinal tumorigenesis. To identify other genes in the pathway(s) of intestinal tumorigenesis, genes that modify the Min phenotype have been sought. Several have been identified, including Mom1 and the genes for the 5-cytosine DNA methyltransferase and the DNA mismatch repair factor Msh2. Min-dependent tumorigenesis also occurs in mammary glands, the pancreas, and the body wall. The Min mouse has therefore become a model for tumorigenesis in a variety of organs. Identifying modifiers of its phenotype will help in piecing together the pathways of tumorigenesis in each of these tissues.
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Affiliation(s)
- A Bilger
- Laboratory of Genetics, University of Wisconsin Medical School, Madison 53706, USA
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Ballantyne S, Bilger A, Astrom J, Virtanen A, Wickens M. Poly (A) polymerases in the nucleus and cytoplasm of frog oocytes: dynamic changes during oocyte maturation and early development. RNA 1995; 1:64-78. [PMID: 7489490 PMCID: PMC1369061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Poly(A) can be added to mRNAs both in the nucleus and in the cytoplasm. During oocyte maturation and early embryonic development, cytoplasmic polyadenylation of preexisting mRNAs provides a common mechanism of translational control. In this report, to begin to understand the regulation of polyadenylation activities during early development, we analyze poly (A) polymerases (PAPs) in oocytes and early embryos of the frog, Xenopus laevis. We have cloned and sequenced a PAP cDNA that corresponds to a maternal mRNA present in frog oocytes. This PAP is similar in size and sequence to mammalian nuclear PAPs. By immunoblotting using monoclonal antibodies raised against human PAP, we demonstrate that oocytes contain multiple forms of PAP that display different electrophoretic mobilities. The oocyte nucleus contains primarily the slower migrating forms of PAP, whereas the cytoplasm contains primarily the faster migrating species. The nuclear forms of PAP are phosphorylated, accounting for their retarded mobility. During oocyte maturation and early postfertilization development, preexisting PAPs undergo regulated phosphorylation and dephosphorylation events. Using the cloned PAP cDNA, we demonstrate that the complex changes in PAP forms seen during oocyte maturation may be due to modifications of a single polypeptide. These results demonstrate that the oocyte contains a cytoplasmic polymerase closely related to the nuclear enzyme and suggest models for how its activity may be regulated during early development.
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Affiliation(s)
- S Ballantyne
- Department of Biochemistry, College of Agriculture and Life Sciences, University of Wisconsin, Madison 53706, USA
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Abstract
In the cytoplasm of oocytes and early embryos, addition of poly(A) to mRNAs can activate their translation. We demonstrate that despite many differences between poly(A) addition in the cytoplasm and nucleus, these two forms of polyadenylation may involve identical trans-acting factors. Nuclear polyadenylation requires the sequence AAUAAA, the AAUAAA-binding cleavage and polyadenylation specificity factor (CPSF), and a poly(A) polymerase (PAP). We show that CPSF and PAP, purified from calf thymus, exhibit the same sequence specificity observed in the cytoplasm during frog oocyte maturation, requiring both AAUAAA and a proximal U-rich sequence. The enhanced polyadenylation of RNAs containing U-rich sequences is caused by their increased affinity for CPSF. Frog nuclear polyadenylation factors display cytoplasmic sequence specificity when dilute, suggesting that a difference in their concentrations in the nucleus and cytoplasm underlies the different sequence specificities in the two compartments. Because polyadenylation in extracts prepared from oocytes before maturation is stimulated by addition of CPSF, the onset of polyadenylation during early development may be attributable to the activation or synthesis of a CPSF-like factor. We suggest that sequences upstream of AAUAAA that are required for cleavage and polyadenylation of certain pre-mRNAs in the nucleus may be functionally equivalent to the upstream, U-rich sequences that function in the cytoplasm, enhancing CPSF binding. We propose that CPSF and PAP comprise a core polyadenylation apparatus in the cytoplasm of oocytes and early embryos.
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Affiliation(s)
- A Bilger
- Department of Biochemistry, College of Agriculture and Life Sciences, University of Wisconsin, Madison 53706
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Abstract
The quantitative autoradiographic [14C]iodoantipyrine technique was applied to measure the effects of an acute hypoxic exposure on rates of local cerebral blood flow (LCBF) in the 10 (P10)-, 14 (P14)- and 21 (P21)-day-old rat. The animals were exposed to hypoxic (7% O2/93% N2) or control gas mixtures (21% O2/79% N2) for 40 min before the initiation of the 1-min LCBF measurement. At P10, hypoxia induced a 142-415% increase in LCBF over control levels, which affected the 45 structures studied. The highest increases in LCBF were noticed in posterior midbrain and brainstem regions. These increases are in good accordance with hypoxia-induced increases in LCBF recorded during acute hypoxia exposure in both newborn and adult animals. At P14 and P21, rates of LCBF decreased with hypoxia. These decreases were significant in 23 and 21 brain regions, respectively, belonging to all systems studied. These changes in LCBF are in quite good correlation with our previous data on the effects of acute hypoxia exposure on cerebral glucose utilization but the decrease in LCBF is of higher amplitude than the one in cerebral glucose utilization translating into a relative hypoperfusion at a constant metabolic level at P14 and P21. However, arterial blood pressure was reduced by 16 mmHg and arterial pCO2 was significantly decreased at the two latter ages in hypoxic animals compared to controls. These two systemic factors, and mainly hypocapnia, are rather responsible for the cerebral hypoperfusion recorded at P14 and P21 in hypoxic rats whereas the circulatory response seems to be predominantly hypoxic at P10.
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Affiliation(s)
- A Bilger
- INSERM U272, Université de Nancy I, France
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Bilger A, Nehlig A. Quantitative histochemical changes in enzymes involved in energy metabolism in the rat brain during postnatal development. II. Glucose-6-phosphate dehydrogenase and beta-hydroxybutyrate dehydrogenase. Int J Dev Neurosci 1992; 10:143-52. [PMID: 1632274 DOI: 10.1016/0736-5748(92)90042-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The postnatal maturation of glucose-6-phosphate and beta-hydroxybutyrate dehydrogenase activity was assessed by histochemistry in rats at eight postnatal stages, P0, P5, P10, P14, P17, P21, P35 and the adult stage. Enzyme activities were revealed on cryostat brain sections with nitroblue tetrazolium. Both enzyme activities were low and homogeneous at birth, and increased to reach a peak in all areas studied, at P17 for beta-hydroxybutyrate dehydrogenase and at P21 for glucose-6-phosphate dehydrogenase. Then, glucose-6-phosphate dehydrogenase activity decreased regularly by 20-49% from P21 to adult stage, except in cerebellar white matter where activity did not change after P21. beta-hydroxybutyrate dehydrogenase activity decreased regularly from P17 to adult stage in globus pallidus, hippocampus, thalamus, brainstem, genu of corpus callosum and cerebellar white matter. It sensorimotor cortex, medial geniculate body, caudate nucleus, hypothalamus and inferior colliculus, beta-hydroxybutyrate dehydrogenase activity stayed stable between P17 and P35 and decreased thereafter to adult levels. Finally, in parietal, auditory and cerebellar cortices, beta-hydroxybutyrate dehydrogenase activity either stayed stable or slightly increased after P17. The present study shows that there is a quite good correlation between postnatal changes in cerebral glucose-6-phosphate and beta-hydroxybutyrate dehydrogenase activities and the importance of pentose phosphate pathway and ketone body utilization in the developing brain. Our results also reflect the regional heterogeneity of beta-hydroxybutyrate utilization in the adult rat brain, translating into a remaining high activity of beta-hydroxybutyrate dehydrogenase in cerebral cortex.
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Affiliation(s)
- A Bilger
- INSERM U272, Université de Nancy I, France
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Bômont L, Bilger A, Boyet S, Vert P, Nehlig A. Acute hypoxia induces specific changes in local cerebral glucose utilization at different postnatal ages in the rat. Brain Res Dev Brain Res 1992; 66:33-45. [PMID: 1600631 DOI: 10.1016/0165-3806(92)90137-l] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The quantitative autoradiographic 2-[14C]-deoxyglucose technique (2-DG) was applied to measure the effects of an acute hypoxic exposure on local cerebral metabolic rates for glucose (LCMRglcs) in the 10 (P10)-, 14 (P14)-, and 21 (P21)-day-old rat. The animals were exposed to hypoxic (7% O2/93% N2) or control gas mixture (21% O2/79% N2) for 20 min before the initiation and for the duration of the 2-DG procedure. Lumped constants were not affected by hypoxia at any age. At P10, the exposure to the hypoxic gas mixture induced a generalized increase in LCMRglc which affected 41 structures of the 45 studied. At P14, average cerebral glucose utilization was similar in hypoxic and control rats. LCMRglc increased in 5 areas and decreased in 11 regions, mainly brainstem and respiratory areas in hypoxic rats. Finally, at P21, LCMRglc decreased in 11 structures of hypoxic rats. The increase in LCMRglc in the hypoxic 10-day-old rat likely reflects stimulation of anaerobic glycolysis. Conversely, at P14 and P21, when the brain has become more dependent upon oxygen supply for its energy metabolism, levels of LCMRglc are similar in both groups of animals or decreased in a few structures of hypoxic compared to normoxic rats. The results of the present study show that the immature brain responds to an acute hypoxic insult in a specific way according to its maturational state. They are also in good accordance with the higher resistance of the immature animal to oxygen deprivation.
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Affiliation(s)
- L Bômont
- Pathologie et Biologie du Développement Humain, INSERM U.273 Universitè de Nancy I, France
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Bilger A, Nehlig A. Quantitative histochemical changes in enzymes involved in energy metabolism in the rat brain during postnatal development. I. Cytochrome oxidase and lactate dehydrogenase. Int J Dev Neurosci 1991; 9:545-53. [PMID: 1666481 DOI: 10.1016/0736-5748(91)90015-e] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The postnatal maturation of cytochrome oxidase and lactate dehydrogenase activity was assessed by histochemistry in rats at 8 postnatal stages, P0, P5, P10, P14, P17, P21, P35 and the adult stage. Enzyme activities were revealed on cryostat brain sections with diaminobenzidine for cytochrome oxidase and nitroblue tetrazolium for lactate dehydrogenase. Lactate dehydrogenase activity remained unchanged between P0 and P10, significantly increased in 8 areas of the 14 studied between P10 and P14 and in 6 structures from P14 to P17. These were mainly parietal, auditory and cerebellar cortices, hippocampus, thalamus, hypothalamus and medial geniculate body. There was no further change until P35 and lactate dehydrogenase activity increased then significantly to reach higher adult levels in hippocampus and medial geniculate body. Cytochrome oxidase activity was low from P0 to P10 and increased in 8 regions between P10 and P14. These were all cortices, caudate nucleus, hippocampus, inferior colliculus and genu. Enzyme activity further increased between P14 and P17 in auditory cortex, medial geniculate body and brainstem, did not vary from P17 to P21 but increased by 92 to 371% in all areas between P21 and P35. Cytochrome oxidase activity rose further from P35 to adult stage in hippocampus and medial geniculate body. From birth to adulthood, cytochrome oxidase activity increased 5 to 19 fold and lactate dehydrogenase activity 1.8 to 3.0. The present study shows that there is a quite good correlation between postnatal changes in regional cerebral glucose utilization and activity of enzymes involved in glycolytic and oxidative glucose metabolism in the rat.
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Affiliation(s)
- A Bilger
- INSERM U 272, Université de Nancy I, France
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