Involvement of FKHR (FOXO1) transcription factor in human uterus leiomyoma growth  

Oleh:

Kovacs, Kalman A. ; Lengyel, Ferenc ; Wilhelm, Ferenc

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Fertility and Sterility (keterangan: ada di ClinicalKey) vol. 94 no. 04 (Sep. 2010), page 1491-1495.
Topik: FOXO1; 14-3-3 ?; proteins; nuclear/cytoplasmic shuttling; leiomyoma; myometrium; human uterus

Ketersediaan

Perpustakaan FK Nomor Panggil: F02.K.2010.05 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Objective To study the expression of FOXO1 and pSer256-FOXO1 parallel to Akt and pSer473-Akt in leiomyoma compared with adjacent myometrium from human uteri. Design Prospective study. Setting University departments. Patient(s) Thirty-eight cyclic and 20 menopausal women who underwent hysterectomy for benign indications. Intervention(s) None. Main Outcome Measure(s) Western blot analyses were used for evaluation in leiomyoma and adjacent myometrium of Akt and pSer473-Akt, 14-3-3 ? proteins and expression and subcellular distribution of FOXO1 and pSer256-FOXO1 during the menstrual cycle and at menopause. Result(s) The present study demonstrates the expression of FOXO1 and pSer256-FOXO1 at the tissue level in the human uterus leiomyoma and adjacent myometrium. The level of phosphorylated FOXO1 in leiomyoma was higher than in matched myometrium. The pSer256-FOXO1 in leiomyoma during menstrual phases was located mostly in the nuclear fraction comparison to that of the myometrium. The reason for this difference is presumably the simultaneously detected lower level of 14-3-3 protein. Conclusion(s) Abundant level of the phosphorylated FOXO1, its impaired nucleocytoplasmic shuttling, and the lowered expression of 14-3-3 protein in leiomyoma induces a shift in the cellular machinery toward a prosurvival execution program and thus presents a potential therapeutic target for treatment of leiomyoma.

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