SMURF1 and SMURF2 directly target GLI1 for ubiquitination and proteasome-dependent degradation
Abstract The transcription factor GLI1 is the main and final effector of the Hedgehog signaling pathway, which is involved in embryonic development, cell proliferation and stemness. Whether activated through canonical or non-canonical mechanisms, GLI1 aberrant activity is associated with Hedgehog-de...
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| Format: | Article |
| Language: | English |
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Nature Publishing Group
2024-12-01
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| Series: | Cell Death Discovery |
| Online Access: | https://doi.org/10.1038/s41420-024-02260-4 |
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| author | Fabio Bordin Gloria Terriaca Adriano Apostolico Annamaria Di Fiore Faranak Taj Mir Sara Bellardinelli Francesca Bufalieri Rosa Bordone Francesca Bellardinilli Giuseppe Giannini Gianluca Canettieri Lucia Di Marcotullio Elisabetta Ferretti Marta Moretti Enrico De Smaele |
| author_facet | Fabio Bordin Gloria Terriaca Adriano Apostolico Annamaria Di Fiore Faranak Taj Mir Sara Bellardinelli Francesca Bufalieri Rosa Bordone Francesca Bellardinilli Giuseppe Giannini Gianluca Canettieri Lucia Di Marcotullio Elisabetta Ferretti Marta Moretti Enrico De Smaele |
| author_sort | Fabio Bordin |
| collection | DOAJ |
| description | Abstract The transcription factor GLI1 is the main and final effector of the Hedgehog signaling pathway, which is involved in embryonic development, cell proliferation and stemness. Whether activated through canonical or non-canonical mechanisms, GLI1 aberrant activity is associated with Hedgehog-dependent cancers, including medulloblastoma, as well as other tumoral contexts. Notwithstanding a growing body of evidence, which have highlighted the potential role of post translational modifications of GLI1, the complex mechanisms modulating GLI1 stability and activity have not been fully elucidated. Here, we present a novel role played by SMURF1 and SMURF2 in the suppression of the Hedgehog/GLI signaling pathway through a direct targeting of GLI1. Indeed, the two SMURFs can interact with GLI1, exploiting the proline rich regions present on GLI1 protein, and trigger its polyubiquitination and proteasomal degradation, leading to a suppression of the Hedgehog pathway activity and a reduction of Hh-dependent tumor cell proliferation. Overall, this study adds new relevance to a tumor suppressive role of SMURFs on the Hedgehog pathway and confers upon them the status of potential therapeutic tools, either in canonical or non-canonical Hedgehog pathway aberrant activation. |
| format | Article |
| id | doaj-art-c82e21faf8634b08b1c0e3ce69cab98a |
| institution | Kabale University |
| issn | 2058-7716 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Nature Publishing Group |
| record_format | Article |
| series | Cell Death Discovery |
| spelling | doaj-art-c82e21faf8634b08b1c0e3ce69cab98a2024-12-22T12:15:29ZengNature Publishing GroupCell Death Discovery2058-77162024-12-0110111210.1038/s41420-024-02260-4SMURF1 and SMURF2 directly target GLI1 for ubiquitination and proteasome-dependent degradationFabio Bordin0Gloria Terriaca1Adriano Apostolico2Annamaria Di Fiore3Faranak Taj Mir4Sara Bellardinelli5Francesca Bufalieri6Rosa Bordone7Francesca Bellardinilli8Giuseppe Giannini9Gianluca Canettieri10Lucia Di Marcotullio11Elisabetta Ferretti12Marta Moretti13Enrico De Smaele14Department of Experimental Medicine, Sapienza University of RomeDepartment of Experimental Medicine, Sapienza University of RomeDepartment of Experimental Medicine, Sapienza University of RomeDepartment of Experimental Medicine, Sapienza University of RomeDepartment of Experimental Medicine, Sapienza University of RomeDepartment of Experimental Medicine, Sapienza University of RomeDepartment of Molecular Medicine, Sapienza University of RomeDepartment of Molecular Medicine, Sapienza University of RomeDepartment of Molecular Medicine, Sapienza University of RomeDepartment of Molecular Medicine, Sapienza University of RomeDepartment of Molecular Medicine, Sapienza University of RomeDepartment of Molecular Medicine, Sapienza University of RomeDepartment of Experimental Medicine, Sapienza University of RomeDepartment of Experimental Medicine, Sapienza University of RomeDepartment of Experimental Medicine, Sapienza University of RomeAbstract The transcription factor GLI1 is the main and final effector of the Hedgehog signaling pathway, which is involved in embryonic development, cell proliferation and stemness. Whether activated through canonical or non-canonical mechanisms, GLI1 aberrant activity is associated with Hedgehog-dependent cancers, including medulloblastoma, as well as other tumoral contexts. Notwithstanding a growing body of evidence, which have highlighted the potential role of post translational modifications of GLI1, the complex mechanisms modulating GLI1 stability and activity have not been fully elucidated. Here, we present a novel role played by SMURF1 and SMURF2 in the suppression of the Hedgehog/GLI signaling pathway through a direct targeting of GLI1. Indeed, the two SMURFs can interact with GLI1, exploiting the proline rich regions present on GLI1 protein, and trigger its polyubiquitination and proteasomal degradation, leading to a suppression of the Hedgehog pathway activity and a reduction of Hh-dependent tumor cell proliferation. Overall, this study adds new relevance to a tumor suppressive role of SMURFs on the Hedgehog pathway and confers upon them the status of potential therapeutic tools, either in canonical or non-canonical Hedgehog pathway aberrant activation.https://doi.org/10.1038/s41420-024-02260-4 |
| spellingShingle | Fabio Bordin Gloria Terriaca Adriano Apostolico Annamaria Di Fiore Faranak Taj Mir Sara Bellardinelli Francesca Bufalieri Rosa Bordone Francesca Bellardinilli Giuseppe Giannini Gianluca Canettieri Lucia Di Marcotullio Elisabetta Ferretti Marta Moretti Enrico De Smaele SMURF1 and SMURF2 directly target GLI1 for ubiquitination and proteasome-dependent degradation Cell Death Discovery |
| title | SMURF1 and SMURF2 directly target GLI1 for ubiquitination and proteasome-dependent degradation |
| title_full | SMURF1 and SMURF2 directly target GLI1 for ubiquitination and proteasome-dependent degradation |
| title_fullStr | SMURF1 and SMURF2 directly target GLI1 for ubiquitination and proteasome-dependent degradation |
| title_full_unstemmed | SMURF1 and SMURF2 directly target GLI1 for ubiquitination and proteasome-dependent degradation |
| title_short | SMURF1 and SMURF2 directly target GLI1 for ubiquitination and proteasome-dependent degradation |
| title_sort | smurf1 and smurf2 directly target gli1 for ubiquitination and proteasome dependent degradation |
| url | https://doi.org/10.1038/s41420-024-02260-4 |
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