| Autor: |
Qu Deng, Ramakrishnan Natesan, Florencia Cidre-Aranaz, Shehbeel Arif, Ying Liu, Reyaz ur Rasool, Pei Wang, Erick Mitchell-Velasquez, Chandan Kanta Das, Endrit Vinca, Zvi Cramer, Patrick J. Grohar, Margaret Chou, Chandan Kumar-Sinha, Kristy Weber, T.S. Karin Eisinger-Mathason, Nicolas Grillet, Thomas G.P. Grünewald, Irfan A. Asangani |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Cell reports. 39(11) |
| ISSN: |
2211-1247 |
| Popis: |
Ewing sarcoma (EwS) is a highly aggressive tumor of bone and soft tissues that mostly affects children and adolescents. The pathognomonic oncofusion EWSR1::FLI1 transcription factor drives EwS by orchestrating an oncogenic transcription program through de novo enhancers. By integrative analysis of thousands of transcriptomes representing pan-cancer cell lines, primary cancers, metastasis, and normal tissues, we identify a 32-gene signature (ESS32 [Ewing Sarcoma Specific 32]) that stratifies EwS from pan-cancer. Among the ESS32, LOXHD1, encoding a stereociliary protein, is the most highly expressed gene through an alternative transcription start site. Deletion or silencing of EWSR1::FLI1 bound upstream de novo enhancer results in loss of the LOXHD1 short isoform, altering EWSR1::FLI1 and HIF1α pathway genes and resulting in decreased proliferation/invasion of EwS cells. These observations implicate LOXHD1 as a biomarker and a determinant of EwS metastasis and suggest new avenues for developing LOXHD1-targeted drugs or cellular therapies for this deadly disease. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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