DLG1 functions upstream of SDCCAG3 and IFT20 to control ciliary targeting of polycystin-2
Polarized vesicular trafficking directs specific receptors and ion channels to cilia, but the underlying mechanisms are poorly understood. Here we describe a role for DLG1, a core component of the Scribble polarity complex, in regulating ciliary protein trafficking in kidney epithelial cells. Condit...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
7 June 2024
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| In: |
EMBO reports
Year: 2024, Jahrgang: 25, Heft: 7, Pages: 3040-3063 |
| ISSN: | 1469-3178 |
| DOI: | 10.1038/s44319-024-00170-1 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1038/s44319-024-00170-1 Verlag, kostenfrei, Volltext: https://www.embopress.org/doi/full/10.1038/s44319-024-00170-1 
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| Verfasserangaben: | Csenge K Rezi, Mariam G Aslanyan, Gaurav D Diwan, Tao Cheng, Mohamed Chamlali, Katrin Junger, Zeinab Anvarian, Esben Lorentzen, Kleo B Pauly, Yasmin Afshar-Bahadori, Eduardo FA Fernandes, Feng Qian, Sébastien Tosi, Søren T Christensen, Stine F Pedersen, Kristian Strømgaard, Robert B Russell, Jeffrey H Miner, Moe R Mahjoub, Karsten Boldt, Ronald Roepman & Lotte B Pedersen |
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| 245 | 1 | 0 | |a DLG1 functions upstream of SDCCAG3 and IFT20 to control ciliary targeting of polycystin-2 |c Csenge K Rezi, Mariam G Aslanyan, Gaurav D Diwan, Tao Cheng, Mohamed Chamlali, Katrin Junger, Zeinab Anvarian, Esben Lorentzen, Kleo B Pauly, Yasmin Afshar-Bahadori, Eduardo FA Fernandes, Feng Qian, Sébastien Tosi, Søren T Christensen, Stine F Pedersen, Kristian Strømgaard, Robert B Russell, Jeffrey H Miner, Moe R Mahjoub, Karsten Boldt, Ronald Roepman & Lotte B Pedersen |
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| 520 | |a Polarized vesicular trafficking directs specific receptors and ion channels to cilia, but the underlying mechanisms are poorly understood. Here we describe a role for DLG1, a core component of the Scribble polarity complex, in regulating ciliary protein trafficking in kidney epithelial cells. Conditional knockout of Dlg1 in mouse kidney causes ciliary elongation and cystogenesis, and cell-based proximity labeling proteomics and fluorescence microscopy show alterations in the ciliary proteome upon loss of DLG1. Specifically, the retromer-associated protein SDCCAG3, IFT20, and polycystin-2 (PC2) are reduced in the cilia of DLG1-deficient cells compared to control cells. This phenotype is recapitulated in vivo and rescuable by re-expression of wild-type DLG1, but not a Congenital Anomalies of the Kidney and Urinary Tract (CAKUT)-associated DLG1 variant, p.T489R. Finally, biochemical approaches and Alpha Fold modelling suggest that SDCCAG3 and IFT20 form a complex that associates, at least indirectly, with DLG1. Our work identifies a key role for DLG1 in regulating ciliary protein composition and suggests that ciliary dysfunction of the p.T489R DLG1 variant may contribute to CAKUT. | ||
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| 650 | 4 | |a Polycystin-2 | |
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