Journal
JOURNAL OF PATHOLOGY
Volume 256, Issue 1, Pages 1-3Publisher
WILEY
DOI: 10.1002/path.5816
Keywords
granulosa cells; FOXL2; ovary; stromal tumours; ovarian cancer
Funding
- Medical Research Future Fund EPCDR Ovarian Cancer Grant [APP1199749]
- DoD CDMRP [W81XWH-17-OCRP-IIRAcfda12.420]
- Ovarian Cancer Research Foundation
- Granulosa Cell Tumor of the Ovary Foundation
- Victorian Government's Operational Infrastructure Scheme
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Recent studies have suggested that the FOXL2(C134W) mutation is a gain-of-function mutation that enhances interactions with the SMAD transcription factor complex.
Recent studies have suggested that the unique FOXL2(C134W) mutation, which is pathognomonic for adult granulosa cell tumours of the ovary, is a tumour suppressor gene. In a recent issue of The Journal of Pathology, a detailed study by Pilsworth et al seeks to rebut the proposition that the FOXL2(C134W) mutation, which uniquely characterises adult granulosa cell tumours of the ovary, leads to reduced transcript levels with the implication that FOXL2 is a tumour suppressor gene. The study provides compelling evidence that both wild-type and mutant FOXL2 transcripts and protein are expressed at equivalent levels. In the context of other recent studies, one is drawn to the conclusion that FOXL2(C134W) is a gain-of-function mutation whose impact is mediated through enhanced interactions with the SMAD transcription factor complex. (C) 2021 The Pathological Society of Great Britain and Ireland.
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