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  1. Artikel ; Online: ER stress and slit diaphragms: is there a connection?

    Hermle, Tobias / Simons, Matias

    Kidney international

    2023  Band 103, Heft 5, Seite(n) 830–832

    Abstract: Galloway-Mowat syndrome is a neurorenal syndrome that has been linked with defective transfer RNA and protein translation caused by variants in the multiprotein complex KEOPS. In the kidney, this syndrome seems to primarily affect the podocytes, but the ... ...

    Abstract Galloway-Mowat syndrome is a neurorenal syndrome that has been linked with defective transfer RNA and protein translation caused by variants in the multiprotein complex KEOPS. In the kidney, this syndrome seems to primarily affect the podocytes, but the pathogenesis has remained unclear. In this issue of Kidney International, Krausel et al. use Drosophila nephrocytes to link endoplasmic reticulum stress with defects in the slit diaphragm.
    Mesh-Begriff(e) Animals ; Membrane Proteins/genetics ; Drosophila/metabolism ; Podocytes/metabolism ; Nephrosis/metabolism ; Drosophila Proteins/genetics ; Drosophila Proteins/metabolism
    Chemische Substanzen Membrane Proteins ; Drosophila Proteins
    Sprache Englisch
    Erscheinungsdatum 2023-04-21
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't ; Comment
    ZDB-ID 120573-0
    ISSN 1523-1755 ; 0085-2538
    ISSN (online) 1523-1755
    ISSN 0085-2538
    DOI 10.1016/j.kint.2023.01.028
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  2. Artikel ; Online: mTOR-Dependent Autophagy Regulates Slit Diaphragm Density in Podocyte-like

    Spitz, Dominik / Comas, Maria / Gerstner, Lea / Kayser, Séverine / Helmstädter, Martin / Walz, Gerd / Hermle, Tobias

    Cells

    2022  Band 11, Heft 13

    Abstract: Both mTOR signaling and autophagy are important modulators of podocyte homeostasis, regeneration, and aging and have been implicated in glomerular diseases. However, the mechanistic role of these pathways for the glomerular filtration barrier remains ... ...

    Abstract Both mTOR signaling and autophagy are important modulators of podocyte homeostasis, regeneration, and aging and have been implicated in glomerular diseases. However, the mechanistic role of these pathways for the glomerular filtration barrier remains poorly understood. We used
    Mesh-Begriff(e) Animals ; Autophagy ; Drosophila/metabolism ; Drosophila Proteins/metabolism ; Podocytes/metabolism ; TOR Serine-Threonine Kinases/metabolism
    Chemische Substanzen Drosophila Proteins ; TOR Serine-Threonine Kinases (EC 2.7.11.1)
    Sprache Englisch
    Erscheinungsdatum 2022-07-02
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2661518-6
    ISSN 2073-4409 ; 2073-4409
    ISSN (online) 2073-4409
    ISSN 2073-4409
    DOI 10.3390/cells11132103
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: Nitrogen-vacancy center magnetic imaging of Fe

    Mathes, Niklas / Comas, Maria / Bleul, Regina / Everaert, Katrijn / Hermle, Tobias / Wiekhorst, Frank / Knittel, Peter / Sperling, Ralph A / Vidal, Xavier

    Nanoscale advances

    2023  Band 6, Heft 1, Seite(n) 247–255

    Abstract: Widefield magnetometry based on nitrogen-vacancy centers enables high spatial resolution imaging of magnetic field distributions without a need for spatial scanning. In this work, we show nitrogen-vacancy center magnetic imaging of ... ...

    Abstract Widefield magnetometry based on nitrogen-vacancy centers enables high spatial resolution imaging of magnetic field distributions without a need for spatial scanning. In this work, we show nitrogen-vacancy center magnetic imaging of Fe
    Sprache Englisch
    Erscheinungsdatum 2023-12-05
    Erscheinungsland England
    Dokumenttyp Journal Article
    ISSN 2516-0230
    ISSN (online) 2516-0230
    DOI 10.1039/d3na00684k
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  4. Artikel ; Online: Linking Basement Membrane and Slit Diaphragm in Drosophila Nephrocytes.

    Leroy, Claire / Lang, Konrad / Spitz, Dominik / Milosavljevic, Julian / Heinkele, Helena / Kayser, Séverine / Helmstädter, Martin / Walz, Gerd / Ulbrich, Maximilian H / Hermle, Tobias

    Journal of the American Society of Nephrology : JASN

    2024  

    Abstract: Background: The glomerular basement membrane and the slit diaphragm are essential parts of the filtration barrier. How these layers collaborate remains unclear. The podocyte-like nephrocytes in Drosophila harbor both a slit diaphragm and a basement ... ...

    Abstract Background: The glomerular basement membrane and the slit diaphragm are essential parts of the filtration barrier. How these layers collaborate remains unclear. The podocyte-like nephrocytes in Drosophila harbor both a slit diaphragm and a basement membrane, serving as a model to address this critical question.
    Methods: Basement membrane components and matrix receptors were silenced using RNAi in nephrocytes. Slit diaphragms were analyzed by immunofluorescence followed by automated quantification. Tracer endocytosis was applied for functional readouts.
    Results: Immunofluorescence indicated a significant reduction of slit diaphragm density upon loss of laminin and collagen IV components. This was accompanied by reduced expression of fly nephrin and shallower membrane invaginations. Tracer studies revealed that the basement membrane defines properties of the nephrocyte filtration barrier. Acute enzymatic disruption of the basement membrane via collagenase rapidly caused slit diaphragm mislocalization and disintegration, which was independent of cell death. Loss of matrix-interacting receptors, particularly integrins mys and mew, phenocopied basement membrane disruption. Integrins and nephrin co-localized at the slit diaphragm in nephrocytes in a mutually dependent manner, interacting genetically. Human integrin α3 interacted physically with nephrin.
    Conclusions: The glomerular basement membrane model in Drosophila nephrocytes reveals that matrix receptor-mediated cues ensure correct positioning of the slit diaphragm and the overall filtration barrier architecture.
    Sprache Englisch
    Erscheinungsdatum 2024-05-22
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 1085942-1
    ISSN 1533-3450 ; 1046-6673
    ISSN (online) 1533-3450
    ISSN 1046-6673
    DOI 10.1681/ASN.0000000000000400
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  5. Artikel: Development of Nivolumab/Ipilimumab-Associated Autoimmune Nephritis during Steroid Therapy.

    Gebauer, Ellen / Bechtel-Walz, Wibke / Schell, Christoph / Erbel, Michelle / Walz, Gerd / Hermle, Tobias

    Case reports in nephrology and dialysis

    2021  Band 11, Heft 3, Seite(n) 270–274

    Abstract: Immunotherapy using immune checkpoint inhibitors revolutionized therapies for a variety of malignancies. Nivolumab, an antibody blocking programmed cell death 1 protein, and ipilimumab that blocks cytotoxic T-lymphocyte-associated protein 4 effectively ... ...

    Abstract Immunotherapy using immune checkpoint inhibitors revolutionized therapies for a variety of malignancies. Nivolumab, an antibody blocking programmed cell death 1 protein, and ipilimumab that blocks cytotoxic T-lymphocyte-associated protein 4 effectively target tumor cells by disinhibiting the endogenous immune response. At the same time, unrestrained T-cell activation may trigger a range of immune-mediated side effects including kidney injury. Steroid therapy constitutes the mainstay of treatment of these adverse events, but dosage, route of administration, and approach to nivolumab re-exposure remain unclear. Here, we report the case of a 72-year-old male patient who developed severe nivolumab/ipilimumab-associated acute kidney injury while on oral steroid therapy for immune-mediated colitis. Acute interstitial nephritis was confirmed by renal biopsy. Administration of high-dose intravenous steroid doses was required to revert declining renal function.
    Sprache Englisch
    Erscheinungsdatum 2021-09-09
    Erscheinungsland Switzerland
    Dokumenttyp Case Reports
    ZDB-ID 2809879-1
    ISSN 2296-9705
    ISSN 2296-9705
    DOI 10.1159/000517502
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  6. Buch ; Online ; Dissertation / Habilitation: <dc:title>Using transgenic Drosophila model to study the mechanism of APOL1-associated cytotoxicity</dc:title>

    Chen, Mengmeng [Verfasser] / Walz, Gerd [Akademischer Betreuer] / Hermle, Tobias Franz [Akademischer Betreuer] / Walz, Gerd [Sonstige] / Sekula, Peggy [Sonstige]

    2022  

    Schlagwörter Medizin, Gesundheit ; Medicine, Health
    Thema/Rubrik (Code) sg610
    Sprache Englisch
    Verlag Universität
    Erscheinungsort Freiburg
    Dokumenttyp Buch ; Online ; Dissertation / Habilitation
    Datenquelle Digitale Dissertationen im Internet

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  7. Buch ; Online ; Dissertation / Habilitation: <dc:title>Mutations in TBC1D8B affect Rab11-activity and cause nephrotic syndrome</dc:title>

    Kampf, Lina L. [Verfasser] / Hermle, Tobias Franz [Akademischer Betreuer] / Walz, Gerd [Akademischer Betreuer] / Walz, Gerd [Sonstige] / Simons, Matias [Sonstige]

    2023  

    Schlagwörter Medizin, Gesundheit ; Medicine, Health
    Thema/Rubrik (Code) sg610
    Sprache Englisch
    Verlag Universität
    Erscheinungsort Freiburg
    Dokumenttyp Buch ; Online ; Dissertation / Habilitation
    Datenquelle Digitale Dissertationen im Internet

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  8. Artikel: Using the

    Helmstädter, Martin / Huber, Tobias B / Hermle, Tobias

    Frontiers in pediatrics

    2017  Band 5, Seite(n) 262

    Abstract: Glomerular disorders are a major cause of end-stage renal disease and effective therapies are often lacking. Nephrocytes are considered to be part of ... ...

    Abstract Glomerular disorders are a major cause of end-stage renal disease and effective therapies are often lacking. Nephrocytes are considered to be part of the
    Sprache Englisch
    Erscheinungsdatum 2017-12-07
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article ; Review
    ZDB-ID 2711999-3
    ISSN 2296-2360
    ISSN 2296-2360
    DOI 10.3389/fped.2017.00262
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  9. Buch ; Online ; Dissertation / Habilitation: Programmierter Zelltod fetaler Erythrozyten

    Hermle, Tobias Franz

    2007  

    Verfasserangabe vorgelegt von Tobias Franz Hermle
    Sprache Deutsch
    Umfang Online-Ressource
    Dokumenttyp Buch ; Online ; Dissertation / Habilitation
    Dissertation / Habilitation Univ., Diss--Tübingen, 2007
    Datenquelle Ehemaliges Sondersammelgebiet Küsten- und Hochseefischerei

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  10. Artikel ; Online: Selective endocytosis controls slit diaphragm maintenance and dynamics in

    Lang, Konrad / Milosavljevic, Julian / Heinkele, Helena / Chen, Mengmeng / Gerstner, Lea / Spitz, Dominik / Kayser, Severine / Helmstädter, Martin / Walz, Gerd / Köttgen, Michael / Spracklen, Andrew / Poulton, John / Hermle, Tobias

    eLife

    2022  Band 11

    Abstract: The kidneys generate about 180 l of primary urine per day by filtration of plasma. An essential part of the filtration barrier is the slit diaphragm, a multiprotein complex containing nephrin as major component. Filter dysfunction typically manifests ... ...

    Abstract The kidneys generate about 180 l of primary urine per day by filtration of plasma. An essential part of the filtration barrier is the slit diaphragm, a multiprotein complex containing nephrin as major component. Filter dysfunction typically manifests with proteinuria and mutations in endocytosis regulating genes were discovered as causes of proteinuria. However, it is unclear how endocytosis regulates the slit diaphragm and how the filtration barrier is maintained without either protein leakage or filter clogging. Here, we study nephrin dynamics in podocyte-like nephrocytes of
    Mesh-Begriff(e) Animals ; Drosophila ; Endocytosis/physiology ; Intercellular Junctions/metabolism ; Mice ; Podocytes/metabolism ; Proteinuria/metabolism
    Sprache Englisch
    Erscheinungsdatum 2022-07-25
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2687154-3
    ISSN 2050-084X ; 2050-084X
    ISSN (online) 2050-084X
    ISSN 2050-084X
    DOI 10.7554/eLife.79037
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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