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| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Shi, Xiaowen Xu, Jianjiang Zhong, Xin Qian, Yuanyuan Lin, Liming Fang, Zimin Ye, Bozhi Lyu, Yiting Zhang, Ran Zheng, Zhanxiong Han, Jibo |
| Abstract | Anthracycline antitumor drug doxorubicin (DOX) induces severe cardiotoxicity. Deubiquitinating enzymes (DUBs) are crucial for protein stability and function and play a significant role in cardiac pathophysiology. By comparing RNA sequencing datasets and conducting functional screening, we determined that Myb-like, SWIRM, and MPN domains 1 (MYSM1) is a key regulator of DOX-induced cardiotoxicity. In this study, we aimed to explore the function and regulatory mechanisms of MYSM1 in DOX-induced cardiotoxicity. Genetic knockdown of MYSM1 significantly mitigated DOX-induced cardiomyopathy. Correspondingly, cardiomyocyte-specific knockdown of MYSM1 by AAV9 protected the heart from DOX-induced cardiotoxicity. Gain- and loss-of-function analysis verified that MYSM1 mediated DOX-induced cardiomyocyte injury in vitro. Through a Co-IP combined with LC-MS/MS analysis, we discovered that MYSM1 directly interacted with tripartite motif-containing protein 21 (TRIM21). Mechanistic investigations revealed that MYSM1 regulates the deubiquitination and the stability of TRIM21 via its MPN domain. Furthermore, MYSM1 exacerbated DOX-induced cardiotoxicity by enhancing ferroptosis. This study identified MYSM1 as a potential therapeutic target for DOX-induced cardiotoxicity and illustrated a MYSM1-TRIM21-ferroptosis axis in regulating DOX-induced cardiotoxicity. |
| Related Links | https://biosignaling.biomedcentral.com/counter/pdf/10.1186/s12964-024-01955-6.pdf |
| Ending Page | 16 |
| Page Count | 16 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| DOI | 10.1186/s12964-024-01955-6 |
| Journal | Cell Communication and Signaling |
| Issue Number | 1 |
| Volume Number | 22 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2024-12-18 |
| Access Restriction | Open |
| Subject Keyword | Cell Biology Protein-Ligand Interactions Receptors Cytokines and Growth Factors Doxorubicin Cardiotoxicity Deubiquitinating enzymes MYSM1 TRIM21 Ferroptosis |
| Content Type | Text |
| Resource Type | Article |
| Subject | Biochemistry Cell Biology Molecular Biology |
| Journal Impact Factor | 8.2/2023 |
| 5-Year Journal Impact Factor | 8/2023 |
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