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Nehls W, Delis S, Haberland B, Maier BO, Sänger K, Tessmer G, Radbruch L, Bausewein C. [Management of Patients with COVID-19 - Recommendations from a Palliative Care Perspective]. Pneumologie 2020; 74:652-659. [PMID: 32316056 PMCID: PMC7645808 DOI: 10.1055/a-1156-2759] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- W Nehls
- Lungenklinik Heckeshorn, Klinik für Pneumologie, Helios Klinikum Emil von Behring, Berlin
| | - S Delis
- Lungenklinik Heckeshorn, Klinik für Pneumologie, Helios Klinikum Emil von Behring, Berlin
| | - B Haberland
- LMU Klinikum, Klinik und Poliklinik für Palliativmedizin, München
| | - B O Maier
- Palliativmedizin und interdisziplinäre Onkologie, Med. Klinik III, St. Josefs-Hospital, Wiesbaden
| | - K Sänger
- Klinik für Pneumologie, Evangelische Lungenklinik, Berlin
| | - G Tessmer
- Klinik für Pneumologie, Evangelische Lungenklinik, Berlin
| | - L Radbruch
- Klinik für Palliativmedizin, Universitätsklinikum Bonn
| | - C Bausewein
- LMU Klinikum, Klinik und Poliklinik für Palliativmedizin, München
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Lienbacher K, Sänger K, Strassburger S, Ehrt O, Rudolph G, Barnerssoi M, Horn AKE. Extraocular muscles involved in convergence are innervated by an additional set of palisade endings that may differ in their excitability: A human study. Prog Brain Res 2019; 248:127-137. [PMID: 31239126 DOI: 10.1016/bs.pbr.2019.04.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Palisade endings are located at the myotendinous junction of extraocular muscles in most mammals. Irrespective of their unclarified function as motor or sensory nerve endings, a specialized role in convergence is proposed, based on their high number in the medial rectus muscle (MR). Further support comes from a study in monkey demonstrating that only the MR and inferior rectus muscle (IR) contain an additional population of palisade endings that express the calcium-binding protein calretinin (CR) in addition to choline acetyltransferase (ChAT). Here we studied, whether CR-positive palisade endings are present in human as well and confined to extraocular muscles most active during convergence. The systematic analysis of all eye muscles of 17 human specimen revealed that only the MR and IR contain an additional population of CR-positive palisade endings and multiple en-grappe endings, which target non-twitch muscle fibers along their whole length. Approximately 80% of all palisade endings in the MR expressed CR. Furthermore, the intrafusal muscle fibers of some muscle spindles in the MR were innervated by CR-positive annulospiral nerve endings that transmit the signals of muscle length changes to the brain. All extraocular muscles contained few thin CR-positive, but ChAT-negative nerve fibers, possibly representing free sensory or autonomic endings arising from the trigeminal ganglion. As in monkey, in the medial periphery of the human oculomotor nucleus ChAT-positive neurons were found to co-express CR. Therefore these neurons most likely represent the cell bodies of CR-positive palisade endings in the MR. Unlike in monkey, these neurons do not lie within a compact cell group, but are more scattered. In conclusion, the MR and IR in human contain two histochemically different populations of palisade and multiple endings that may contribute to ocular alignment and convergence in a different way.
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Affiliation(s)
- Karoline Lienbacher
- Faculty of Medicine, Institute of Anatomy and Cell Biology I, Ludwig-Maximilians-University, Munich, Germany; Center for Vertigo and Balance Disorders DSGZ, Ludwig-Maximilians-University, Munich, Germany
| | - Kathrin Sänger
- Faculty of Medicine, Institute of Anatomy and Cell Biology I, Ludwig-Maximilians-University, Munich, Germany
| | - Sebastian Strassburger
- Faculty of Medicine, Institute of Anatomy and Cell Biology I, Ludwig-Maximilians-University, Munich, Germany
| | - Oliver Ehrt
- Department of Ophthalmology, University Hospital, Ludwig-Maximilians-University, Munich, Germany
| | - Günther Rudolph
- Department of Ophthalmology, University Hospital, Ludwig-Maximilians-University, Munich, Germany
| | - Miriam Barnerssoi
- Faculty of Medicine, Institute of Anatomy and Cell Biology I, Ludwig-Maximilians-University, Munich, Germany
| | - Anja K E Horn
- Faculty of Medicine, Institute of Anatomy and Cell Biology I, Ludwig-Maximilians-University, Munich, Germany; Center for Vertigo and Balance Disorders DSGZ, Ludwig-Maximilians-University, Munich, Germany.
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Olive E, Grohé C, Sänger K, Lamping M, Leyvraz S, Ochsenreither S, Keilholz U, Tessmer A. Fallbericht zur Behandlung eines NSCLC Patienten und aktivierender p.G469A BRAF-Mutation mit Dabrafenib und Trametinib. Pneumologie 2018. [DOI: 10.1055/s-0037-1619263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- E Olive
- Evangelische Lungenklinik Berlin
| | - C Grohé
- Klinik für Pneumologie, Evangelische Lungenklinik Berlin – Krankenhausbetriebs gGmbH
| | - K Sänger
- Pneumologie; Palliativmedizin, Evangelische Lungenklinik Berlin
| | - M Lamping
- Charité Comprehensive Cancer Center (Cccc); Charité Universitätsmedizin Berlin
| | - S Leyvraz
- Charité Comprehensive Cancer Center (Cccc); Charité Universitätsmedizin Berlin
| | - S Ochsenreither
- Charité Comprehensive Cancer Center (Cccc); Charité Universitätsmedizin Berlin
| | - U Keilholz
- Hematology-Oncology, Campus Benjamin Franklin, Charité – Universitätsmedizin Berlin
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Grohé C, Olive E, Lüders H, Tessmer A, Kurz S, Sänger K. Rascher Tumorprogress ist ein wichtiger Indikator der Therapiesteuerung des fortgeschrittenen Lungenkarzinom. Pneumologie 2018. [DOI: 10.1055/s-0037-1619217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- C Grohé
- Klinik für Pneumologie, Evangelische Lungenklinik Berlin – Krankenhausbetriebs gGmbH
| | - E Olive
- Evangelische Lungenklinik Berlin
| | - H Lüders
- Evangelische Lungenklinik Berlin
| | | | - S Kurz
- Evangelische Lungenklinik Berlin
| | - K Sänger
- Evangelische Lungenklinik Berlin
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Abstract
Overexpression of Cdc25A phosphatase is often observed in cancer and results in poor prognosis. Cdc25A mainly dephosphorylates and thereby activates Cyclin-dependent kinase 2 and thus induces progression in the cell cycle from G(1) to S phase. Here, we demonstrate that the tumor suppressor p53 downregulates expression from the Cdc25A gene. In a p53-inducible cell system, Cdc25A expression on the mRNA and protein level is downregulated upon p53 expression. Promoter-reporter assays show that this regulation is dependent on the Cdc25A promoter. Mutant p53 fails to reduce Cdc25A transcription. In contrast to p53, neither p63 nor p73 can repress Cdc25A transcription. The Cdc25A promoter displays no p53 binding site, and p53 does not bind directly to the promoter DNA as shown by chromatin immunoprecipitation assays. Previously, the contribution of p53 to G(1)/S arrest has been mostly linked to activating the expression of the Cdk inhibitor p21(WAF1/CIP1). By downregulating Cdc25A expression, p53 may impair transition from G(1) to S phase independently of p21(WAF1/CIP1). Therefore, the data suggest that, as long as p53 is intact, Cdc25A transcriptional downregulation might play a role in cancer prevention.
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Affiliation(s)
- K Rother
- Medizinische Klinik und Poliklinik II, Max-Bürger-Forschungszentrum, Universität Leipzig, Leipzig, Germany
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Zuberbier T, Lelke A, Sänger K, Welker P, Guhl S, Henz B. Comparison of Mast Cell Precursors and Cultured Mast Cells from the Cord Blood of Children with Atopic and Nonatopic Parents. Int Arch Allergy Immunol 2001. [DOI: 10.1159/000053740] [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: 11/19/2022] Open
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Sänger K. [Changes in the discharge frequencies of the electric organ with respect to various behavior patterns of a Nile pike (Gnathonemus petersii)]. Experientia 1967; 23:868-9. [PMID: 6076333 DOI: 10.1007/bf02146899] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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