| Autor: |
Sukanya Chakraborty, Aaqib M. Bhat, Insha Mushtaq, Haitao Luan, Achyuth Kalluchi, Sameer Mirza, Matthew D. Storck, Nagendra Chaturvedi, Jose Antonio Lopez- Guerrero, Antonio Llombart-Bosch, Isidro Machado, Katia Scotlandi, Jane L. Meza, Gargi Ghosal, Donald W. Coulter, M Jordan Rowley, Vimla Band, Bhopal C. Mohapatra, Hamid Band |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
bioRxiv |
| Popis: |
Overexpression of EPS15 Homology Domain containing 1 (EHD1) has been linked to tumorigenesis but whether its core function as a regulator of intracellular traffic of cell surface receptors plays a role in oncogenesis remains unknown. We establish that EHD1 is overexpressed in Ewing sarcoma (EWS), with high EHD mRNA expression specifying shorter patient survival. ShRNA and CRISPR-knockout with mouseEhd1rescue established a requirement of EHD1 for tumorigenesis and metastasis. RTK antibody arrays identified the IGF-1R as a target of EHD1 regulation in EWS. Mechanistically, we demonstrate a requirement of EHD1 for endocytic recycling and Golgi to plasma membrane traffic of IGF-1R to maintain its surface expression and downstream signaling. Conversely, EHD1 overexpression-dependent exaggerated oncogenic traits require IGF-1R expression and kinase activity. Our findings define the RTK traffic regulation as a proximal mechanism of EHD1 overexpression-dependent oncogenesis that impinges on IGF-1R in EWS, supporting the potential of IGF-1R and EHD1 co-targeting. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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