FOXL2 molecular status in adult granulosa cell tumors of the ovary: A study of primary and metastatic cases

Gian Franco Zannoni, Giuseppina Improta, Marco Petrillo, Angela Pettinato, Giovanni Scambia, Filippo Fraggetta

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Granulosa cell tumors (GCTs) of the ovary are uncommon neoplasms, accounting for ~5% of all malignant ovarian tumors. GCTs are a relatively homogeneous group of tumors, categorized into two distinct subtypes, juvenile GCT and adult GCT (AGCT), likely arising from a limited set of molecular events usually involving the disruption of pathways that regulate granulosa cell proliferation. In the present study, the presence of forkheadbox L2 (FOXL2) c.402C>G mutation was investigated in a series of 42 samples of primary and metastatic AGCT of the ovary. The samples consisted of 37 primary and 5 metastatic ovarian AGCTs from 37 patients. FOXL2 mutational status was evaluated using a pyrosequencing approach on 2.5‑µm sections of formalin‑fixed paraffin‑embedded tissue. FOXL2 c.402C>G mutation was found in 33/37 (89.2%) primary AGCTs and in 4/5 (80.0%) metastases, with the molecular status of the metastases recapitulating that of the primary tumors (4 mutated cases and 1 wild‑type case). Overall, FOXL2 mutation is present in the majority of primary and metastatic AGCTs, and could be used as a valid tool in the diagnosis of the disease and in cases of metastatic lesions from an unknown primary origin. Moreover the concordance of FOXL2 molecular status in primary and associated metastases suggests its early appearance and genomic stability in AGCT tumorigenesis.

Original languageEnglish
Pages (from-to)1159-1163
Number of pages5
JournalOncology Letters
Volume12
Issue number2
DOIs
Publication statusPublished - Aug 1 2016

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Granulosa Cell Tumor
Neoplasm Metastasis
Mutation
Neoplasms
Granulosa Cells
Genomic Instability
Ovarian Neoplasms
Carcinogenesis
Cell Proliferation
Granulosa cell tumor of the ovary

Keywords

  • FOXL2
  • Granulosa cell tumors
  • Molecular signatures
  • Mutation
  • Ovary

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Cite this

Zannoni, G. F., Improta, G., Petrillo, M., Pettinato, A., Scambia, G., & Fraggetta, F. (2016). FOXL2 molecular status in adult granulosa cell tumors of the ovary: A study of primary and metastatic cases. Oncology Letters, 12(2), 1159-1163. https://doi.org/10.3892/ol.2016.4711

FOXL2 molecular status in adult granulosa cell tumors of the ovary : A study of primary and metastatic cases. / Zannoni, Gian Franco; Improta, Giuseppina; Petrillo, Marco; Pettinato, Angela; Scambia, Giovanni; Fraggetta, Filippo.

In: Oncology Letters, Vol. 12, No. 2, 01.08.2016, p. 1159-1163.

Research output: Contribution to journalArticle

Zannoni, GF, Improta, G, Petrillo, M, Pettinato, A, Scambia, G & Fraggetta, F 2016, 'FOXL2 molecular status in adult granulosa cell tumors of the ovary: A study of primary and metastatic cases', Oncology Letters, vol. 12, no. 2, pp. 1159-1163. https://doi.org/10.3892/ol.2016.4711
Zannoni, Gian Franco ; Improta, Giuseppina ; Petrillo, Marco ; Pettinato, Angela ; Scambia, Giovanni ; Fraggetta, Filippo. / FOXL2 molecular status in adult granulosa cell tumors of the ovary : A study of primary and metastatic cases. In: Oncology Letters. 2016 ; Vol. 12, No. 2. pp. 1159-1163.
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