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Updated: Jun 20, 2026
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Mapping the Structure-Function Relationships of Disordered Oncogenic Transcription Factors Using Transcriptomic Analysis
Published on: June 27, 2020
The forkhead factor FOXL2: a novel tumor suppressor?
Bérénice A Benayoun1, Nicolas Kalfa, Charles Sultan
1Institut Jacques Monod, UMR 7592-CNRS, 15 rue Hélène Brion, Paris, France.
Biochimica Et Biophysica Acta
|September 15, 2009
Summary
FOXL2 gene mutations are linked to ovarian granulosa cell tumors (OGCTs). Reduced FOXL2 expression and specific mutations suggest it may function as a tumor suppressor in OGCT development.
Area of Science:
- Genetics
- Oncology
- Molecular Biology
Background:
- FOXL2 is a forkhead transcription factor gene.
- Germline mutations in FOXL2 cause blepharophimosis ptosis epicanthus inversus syndrome.
- Reduced FOXL2 expression was observed in juvenile ovarian granulosa cell tumors (OGCTs).
Purpose of the Study:
- To investigate the role of FOXL2 in adult OGCTs.
- To understand the functional impact of the recurring p.Cys134Trp somatic mutation in FOXL2.
- To evaluate FOXL2 as a potential tumor suppressor in OGCTs.
Main Methods:
- Whole-transcriptome sequencing of adult OGCTs.
- Analysis of FOXL2 expression levels in tumor samples.
- Review of existing literature on FOXL2 targets and partners.
Main Results:
- A recurrent somatic mutation (p.Cys134Trp) in FOXL2 was identified in adult OGCTs.
- This mutation may enhance tumor cell proliferation or survival.
- FOXL2's known target genes and molecular partners are frequently associated with cancer progression.
Conclusions:
- FOXL2 may act as a tumor suppressor gene in ovarian granulosa cell tumors.
- The identified FOXL2 mutation is significant for OGCT pathogenesis.
- Further research into FOXL2's role in cancer is warranted.
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