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Battis K, Florio JB, Mante M, Lana A, Naumann I, Gauer C, Lambrecht V, Müller SJ, Cobo I, Fixsen B, Kim HY, Masliah E, Glass CK, Schlachetzki JCM, Rissman RA, Winkler J, Hoffmann A. CSF1R-Mediated Myeloid Cell Depletion Prolongs Lifespan But Aggravates Distinct Motor Symptoms in a Model of Multiple System Atrophy. J Neurosci 2022; 42:7673-7688. [PMID: 36333098 PMCID: PMC9546481 DOI: 10.1523/jneurosci.0417-22.2022] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 08/03/2022] [Accepted: 08/15/2022] [Indexed: 01/21/2023] Open
Abstract
As the CNS-resident macrophages and member of the myeloid lineage, microglia fulfill manifold functions important for brain development and homeostasis. In the context of neurodegenerative diseases, they have been implicated in degenerative and regenerative processes. The discovery of distinct activation patterns, including increased phagocytosis, indicated a damaging role of myeloid cells in multiple system atrophy (MSA), a devastating, rapidly progressing atypical parkinsonian disorder. Here, we analyzed the gene expression profile of microglia in a mouse model of MSA (MBP29-hα-syn) and identified a disease-associated expression profile and upregulation of the colony-stimulating factor 1 (Csf1). Thus, we hypothesized that CSF1 receptor-mediated depletion of myeloid cells using PLX5622 modifies the disease progression and neuropathological phenotype in this mouse model. Intriguingly, sex-balanced analysis of myeloid cell depletion in MBP29-hα-syn mice revealed a two-faced outcome comprising an improved survival rate accompanied by a delayed onset of neurological symptoms in contrast to severely impaired motor functions. Furthermore, PLX5622 reversed gene expression profiles related to myeloid cell activation but reduced gene expression associated with transsynaptic signaling and signal release. While transcriptional changes were accompanied by a reduction of dopaminergic neurons in the SNpc, striatal neuritic density was increased upon myeloid cell depletion in MBP29-hα-syn mice. Together, our findings provide insight into the complex, two-faced role of myeloid cells in the context of MSA emphasizing the importance to carefully balance the beneficial and adverse effects of CSF1R inhibition in different models of neurodegenerative disorders before its clinical translation.SIGNIFICANCE STATEMENT Myeloid cells have been implicated as detrimental in the disease pathogenesis of multiple system atrophy. However, long-term CSF1R-dependent depletion of these cells in a mouse model of multiple system atrophy demonstrates a two-faced effect involving an improved survival associated with a delayed onset of disease and reduced inflammation which was contrasted by severely impaired motor functions, synaptic signaling, and neuronal circuitries. Thus, this study unraveled a complex role of myeloid cells in multiple system atrophy, which indicates important functions beyond the previously described disease-associated, destructive phenotype and emphasized the need of further investigation to carefully and individually fine-tune immunologic processes in different neurodegenerative diseases.
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Affiliation(s)
- Kristina Battis
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, 91054, Germany
| | - Jazmin B Florio
- Department of Neurosciences, University of California-San Diego, La Jolla, California 92093
| | - Michael Mante
- Department of Neurosciences, University of California-San Diego, La Jolla, California 92093
| | - Addison Lana
- Department of Cellular and Molecular Medicine, University of California-San Diego, La Jolla, California 92093
| | - Isabel Naumann
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, 91054, Germany
| | - Carina Gauer
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, 91054, Germany
| | - Vera Lambrecht
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, 91054, Germany
- Center of Rare Diseases Erlangen (ZSEER), University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, 91054, Germany
| | - Simon Julian Müller
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, 91054, Germany
| | - Isidoro Cobo
- Department of Cellular and Molecular Medicine, University of California-San Diego, La Jolla, California 92093
| | - Bethany Fixsen
- Department of Cellular and Molecular Medicine, University of California-San Diego, La Jolla, California 92093
| | - Ha Yeon Kim
- Department of Neurosciences, University of California-San Diego, La Jolla, California 92093
| | - Eliezer Masliah
- Division of Neuroscience, National Institute on Aging, National Institutes of Health, Bethesda, Maryland 20892
| | - Christopher K Glass
- Department of Cellular and Molecular Medicine, University of California-San Diego, La Jolla, California 92093
| | - Johannes C M Schlachetzki
- Department of Cellular and Molecular Medicine, University of California-San Diego, La Jolla, California 92093
| | - Robert A Rissman
- Department of Neurosciences, University of California-San Diego, La Jolla, California 92093
| | - Jürgen Winkler
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, 91054, Germany
- Center of Rare Diseases Erlangen (ZSEER), University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, 91054, Germany
| | - Alana Hoffmann
- Department of Molecular Neurology, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, 91054, Germany
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Sargent E, Naumann I. Petrosectomy and Radiation in Carcinoid Tumors of the Temporal Bone. Skull Base Surg 2014. [DOI: 10.1055/s-0034-1383936] [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: 10/20/2022]
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Rapino F, Naumann I, Fulda S. Bortezomib antagonizes microtubule-interfering drug-induced apoptosis by inhibiting G2/M transition and MCL-1 degradation. Cell Death Dis 2013; 4:e925. [PMID: 24263099 PMCID: PMC3847318 DOI: 10.1038/cddis.2013.440] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [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: 07/10/2013] [Revised: 09/17/2013] [Accepted: 10/01/2013] [Indexed: 01/27/2023]
Abstract
Inhibition of the proteasome is considered as a promising strategy to sensitize cancer cells to apoptosis. Recently, we demonstrated that the proteasome inhibitor Bortezomib primes neuroblastoma cells to TRAIL-induced apoptosis. In the present study, we investigated whether Bortezomib increases chemosensitivity of neuroblastoma cells. Unexpectedly, we discover an antagonistic interaction of Bortezomib and microtubule-interfering drugs. Bortezomib significantly attenuates the loss of cell viability and induction of apoptosis on treatment with Taxol and different vinca alkaloids but not with other chemotherapeutics, that is, Doxorubicin and Cisplatinum. Importantly, Bortezomib inhibits G2/M transition by inhibiting proteasomal degradation of cell cycle regulatory proteins such as p21, thereby preventing cells to enter mitosis, the cell cycle phase in which they are most vulnerable to antitubulin chemotherapeutics. Consequently, Bortezomib counteracts Taxol-induced mitotic arrest and polyploidy, as shown by reduced expression of PLK1 and phosphorylated histone H3. In addition, Bortezomib antagonizes Taxol-mediated degradation of MCL-1 during mitotic arrest by preventing cells to enter mitosis and by inhibiting the proteasome. Downregulation of MCL-1 is critically required for Taxol-induced apoptosis, as overexpression of a phosphomutant MCL-1 variant, which is resistant to degradation, significantly diminishes Taxol-triggered apoptosis. Vice versa, attenuation of Bortezomib-mediated accumulation of MCL-1 by knockdown of MCL-1 significantly enhances Taxol/Bortezomib-induced apoptosis. Thus, Bortezomib rescues Taxol-induced apoptosis by inhibiting G2/M transition and mitigating MCL-1 degradation. The identification of this antagonistic interaction of Bortezomib and microtubule-targeted drugs has important implications for the design of Bortezomib-based combination therapies.
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Affiliation(s)
- F Rapino
- Institute for Experimental Cancer Research in Pediatrics, Goethe-University Frankfurt, Komturstr. 3a, Frankfurt, Germany
| | - I Naumann
- Institute for Experimental Cancer Research in Pediatrics, Goethe-University Frankfurt, Komturstr. 3a, Frankfurt, Germany
| | - S Fulda
- Institute for Experimental Cancer Research in Pediatrics, Goethe-University Frankfurt, Komturstr. 3a, Frankfurt, Germany
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Grills I, Baschnagel A, Bojrab D, Pieper D, Kartush J, Didyuk O, Naumann I, Maitz A, Chen P. Mean Cochlear Dose Predicts Hearing Preservation in Acoustic Neuroma Patients Treated With Gamma-knife Stereotactic Radiosurgery. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.720] [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]
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Baschnagel A, Chen P, Bojrab D, Pieper D, Kartush J, Naumann I, Marvin K, Ye H, Maitz A, Grills I. Quality of Life and Audiologic Changes in Patients treated with Gamma Knife Stereotactic Radiosurgery for Vestibular Schwannoma. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1753] [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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Jawad M, Grills I, Naumann I, Bojrab D, Marvin K, Chen P, Kartush J, Pieper D. Outcomes and Toxicities following Gamma Knife Radiosurgery with or without Surgical Resection for Glomus Tumors. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1789] [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: 11/26/2022]
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König T, Thulke S, Naumann I, Siegert W, Buchholz R, Walter C. Komponenten aus Mikroalgen mit Aktivitäten gegen humanpathogene Viren. CHEM-ING-TECH 2006. [DOI: 10.1002/cite.200650194] [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: 11/11/2022]
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Baltá Calleja FJ, Rueda DR, Michler GH, Naumann I. Morphology of poly(ethylene naphthalene-2,6-dicarboxylate): First stages of crystallization. J MACROMOL SCI B 2006. [DOI: 10.1080/00222349808220483] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- F. J. Baltá Calleja
- a Instituto de Estructura de la Materia , CSIC Serrano 119, Madrid, 28006, Spain
| | - D. R. Rueda
- a Instituto de Estructura de la Materia , CSIC Serrano 119, Madrid, 28006, Spain
| | - G. H. Michler
- b Martin-Luther-Universität Halle-Wittenberg, Institut für Werkstoffwissenschaft , Halle/S., 06099, Germany
| | - I. Naumann
- b Martin-Luther-Universität Halle-Wittenberg, Institut für Werkstoffwissenschaft , Halle/S., 06099, Germany
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Hammer T, Heynemann M, Naumann I, Duncker GI. [Correction and induction of high-order aberrations after standard and wavefront-guided LASIK and their influence on the postoperative contrast sensitivity]. Klin Monbl Augenheilkd 2006; 223:217-24. [PMID: 16552654 DOI: 10.1055/s-2005-858864] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
BACKGROUND Wavefront-guided LASIK-treatments should reduce high-order aberrations (HOA). However, both the microkeratome cut as well as the ablation itself induce HOA. The purpose of this study was to investigate the amount of corrected preoperative measured HOA and induction of new HOA. METHODS In this retrospective study 67 eyes of 45 myopic patients (- 2 to - 8.1 D SE; spherical equivalent) were treated by standard and wavefront-guided LASIK (Keracor 217z). Pre- and postoperative measurements of total aberrations and contrast sensitivity were performed. The follow-up time was 5.7 +/- 0.9 months. RESULTS Patients with preoperative increased aberrations of 3rd and 4th order and myopia up to 5 D showed a slightly reduction of wavefront deformation. Cases of higher myopic corrections and lower preoperative spherical aberrations developed an increase of spherical aberrations after LASIK. The changes of other HOA showed no correlation with the amount of corrected myopia. Up to - 5 D patients showed the trend to better postoperative contrast sensitivity under 3 and 85 cd/m (2) after wavefront-guided LASIK than after standard LASIK. A significant advantage of wavefront-guided LASIK can be detected under a spatial frequency of 3 CPD (cycles per degree) and 85 cd/m (2). No advantages of any treatment procedure were shown after higher myopic corrections. CONCLUSION If preoperative aberrations of 3rd and 4th order were increased and the myopia is < 5 D (SE) -- wavefront-guided LASIK can reduce total ocular HOA. Aberrometric findings after wavefront-guided LASIK in patients with lower preoperative HOA and myopia > 5 D (SE) are comparable with the results after standard treatment.
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Affiliation(s)
- T Hammer
- Universitätsaugenklinik und Poliklinik der Martin-Luther-Universität Halle-Wittenberg.
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Hammer T, Naumann I, Heynemann M, Duncker GIW. Korrektur und Induktion von Brechungsfehlern höherer Ordnung durch Standard- und wellenfrontgeführte LASIK und deren Auswirkung auf die Sehqualität. Klin Monbl Augenheilkd 2004. [DOI: 10.1055/s-2004-836194] [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: 10/27/2022]
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Abstract
Abstract. Title of the paper: Investigation of milk flow from udder quarters 672 milk flow curves of 30 cows from the milkings of one quarter and from the corresponding complete milkings of the respective following day were registered. With the aid of the ultrasound technique and an imaging analysis system the teat Channel lengths, the teat wall thickness and the teat tissue areas were meseared before and after milking. The duration of decreasing flow rate of the complete milking can be explained by the traits of the milk flow curves of the quarter milkings. The maximum flow rate and the average flow rate were influenced by the shape traits of the teat apex.
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Tinschert S, Naumann I, Stegmann E, Buske A, Kaufmann D, Thiel G, Jenne DE. Segmental neurofibromatosis is caused by somatic mutation of the neurofibromatosis type 1 (NF1) gene. Eur J Hum Genet 2000; 8:455-9. [PMID: 10878667 DOI: 10.1038/sj.ejhg.5200493] [Citation(s) in RCA: 161] [Impact Index Per Article: 6.7] [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: 11/09/2022] Open
Abstract
Segmental neurofibromatosis (NF) is generally thought to result from a postzygotic NF1 (neurofibromatosis type 1) gene mutation. However, this has not yet been demonstrated at the molecular level. Using fluorescence in situ hybridisation (FISH) we identified an NF1 microdeletion in a patient with segmental NF in whom café-au-lait spots and freckles are limited to a single body region. The mutant allele was present in a mosaic pattern in cultured fibroblasts from a café-au-lait spot lesion, but was absent in fibroblasts from normal skin as well as in peripheral blood leukocytes. These findings prove the hypothesis that the molecular basis of segmental cutaneous NF is a mutation in the NF1 gene and that the regional distribution of manifestations reflects different cell clones, commensurate with the concept of somatic mosaicism.
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Affiliation(s)
- S Tinschert
- Institut für Medizinische Genetik, Universitätsklinikum Charité, Humboldt-Universität zu Berlin, Germany.
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Jenne DE, Tinschert S, Stegmann E, Reimann H, Nürnberg P, Horn D, Naumann I, Buske A, Thiel G. A common set of at least 11 functional genes is lost in the majority of NF1 patients with gross deletions. Genomics 2000; 66:93-7. [PMID: 10843809 DOI: 10.1006/geno.2000.6179] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [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: 11/22/2022]
Abstract
Large deletions of the NF1 locus occur in 5 to 10% of patients with neurofibromatosis and are commonly associated with specific additional abnormalities characterized by mental retardation, dysmorphic features, and intellectual impairment. To characterize the extent of codeleted genes we constructed a long-range physical BAC/PAC map around the NF1 locus between D17S117 and D17S57 and determined the deletion boundaries in seven unrelated patients. Surprisingly, the proximal and distal breakpoints in five of seven patients fall at almost identical positions, resulting in the loss of at least 11 functional genes. Five of six patients investigated showed a de novo deletion on the maternally derived chromosome. Since D17S117 and D17S57 were previously reported as the outer limits for the great majority of NF1 deletions, we suggest that most NF1 patients with deletion of the entire NF1 gene are hemizygous for the same set of at least 10 additional genes, including SHGC-37343, SHGC-2390, SHGC-34232, OMG, EVI2B, EVI2A, WI-9521, WI-6742, SHGC-34334, and KIAA0160, and thus present with a relatively uniform clinical phenotype.
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Affiliation(s)
- D E Jenne
- Department of Neuroimmunology, Max-Planck-Institute of Neurobiology, Am Klopferspitz 18A, Martinsried, 82152, Germany.
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Schulz J, Fahr RD, Finn G, Naumann I. [Physical examination and palpation findings of mammary glands and indications of udder health in goat milk]. Tierarztl Prax Ausg G Grosstiere Nutztiere 1999; 27:92-8. [PMID: 10326234] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
In dairy goats there is less evidence for relationships between udder form traits, results of physical udder examinations and mastitis indicators in the milk than in dairy cows. In 413 goats (predominantly Weisse Deutsche Edelziege and Bunte Deutsche Edelziege) from five herds (free from C.A.E.) repeated investigations of 2537 udder halves and fore milk samples were carried out in order to compare udder traits with findings in the milk. Less than 20% positive bacteriological findings and a low incidence of clinical mastitis testified a good clinical udder health status of the herds. Small teat-floor distances, loose hanging of the udders and bottle-shaped teats, findings which tended to become more frequent as lactation and lactation numbers progressed, indurative alterations of the mammary tissues and the teats tended to be connected with higher milk cell counts (> 1 million/microliter), more polymorphonuclear milk cells (> 40%), higher electrical milk conductivity (> 6.8 mS/cm) and lower milk lactose content (< 4.6%). A similar effect had a bad state of foot trimming. It is proposed to include the studied udder traits into herd health programs and breeding schemes for goats.
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Affiliation(s)
- J Schulz
- Institut für Tierzucht und Tierhaltung mit Tierklinik, Martin-Luther-Universität Halle-Wittenberg
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BaltáCalleja F, Giri L, Michler G, Naumann I. Kinetics of chlorosulfonation and OsO4 attack in the interlamellar regions of low and high density polyethylene studied by microhardness. POLYMER 1997. [DOI: 10.1016/s0032-3861(97)00140-7] [Citation(s) in RCA: 8] [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: 11/29/2022]
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