Epigenomic signatures of sarcomatoid differentiation to guide the treatment of renal cell carcinoma.
Cell Rep
; 43(6): 114350, 2024 Jun 25.
Article
in En
| MEDLINE
| ID: mdl-38870013
ABSTRACT
Renal cell carcinoma with sarcomatoid differentiation (sRCC) is associated with poor survival and a heightened response to immune checkpoint inhibitors (ICIs). Two major barriers to improving outcomes for sRCC are the limited understanding of its gene regulatory programs and the low diagnostic yield of tumor biopsies due to spatial heterogeneity. Herein, we characterized the epigenomic landscape of sRCC by profiling 107 epigenomic libraries from tissue and plasma samples from 50 patients with RCC and healthy volunteers. By profiling histone modifications and DNA methylation, we identified highly recurrent epigenomic reprogramming enriched in sRCC. Furthermore, CRISPRa experiments implicated the transcription factor FOSL1 in activating sRCC-associated gene regulatory programs, and FOSL1 expression was associated with the response to ICIs in RCC in two randomized clinical trials. Finally, we established a blood-based diagnostic approach using detectable sRCC epigenomic signatures in patient plasma, providing a framework for discovering epigenomic correlates of tumor histology via liquid biopsy.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Carcinoma, Renal Cell
/
Epigenomics
/
Kidney Neoplasms
Limits:
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
Cell Rep
Year:
2024
Type:
Article
Affiliation country:
United States