Journal article
Downregulation of FOXO1 mRNA levels predicts treatment failure in patients with endometrial pathology conservatively managed with progestin-containing intrauterine devices
Gynecologic Oncology, Vol.140(1), pp.152-160
01/2016
DOI: 10.1016/j.ygyno.2015.10.023
PMCID: PMC4784706
PMID: 26524723
Abstract
To examine hormone receptor expression levels and downstream gene activation in pre-treatment and post-treatment biopsies in a cohort of patients with endometrial pathology who were being conservatively managed with a progestin-containing intrauterine device (IUD). A molecular signature of treatment failure is proposed. A retrospective analysis of pre- and post-treatment biopsy specimens from 10 women treated with progestin-containing IUD for complex atypical hyperplasia (CAH) or grade 1 endometrioid adenocarcinoma was performed. Expression of estrogen receptor (ER), progesterone receptor (PR) and PR target genes was examined by immunohistochemistry (IHC) and quantitative RT-PCR. The mean treatment duration was 14.3months. Four CAH patients had stable disease or regressed after treatment, and four progressed to endometrioid adenocarcinoma. Both patients with an initial diagnosis of endometrioid adenocarcinoma regressed to CAH or no disease. In general, hormone receptor levels diminished post-treatment compared to pre-treatment biopsies; however, we noted unexpected higher expression of the B isoform of PR (PRB) as well as ER in those patients who progressed to frank cancer. There was a trend towards a non-nuclear cytoplasmic location of PRB in these patients. Importantly, the differentiating impact of PR signaling, as determined by the expression of the progestin-controlled tumor suppressor FOXO1, was lost in individuals who progressed on therapy. FOXO1 mRNA levels may serve as a biomarker for response to therapy and an indicator of PR function in patients being conservatively managed with a progestin-containing IUD. •We analyzed hormone receptor levels/activity following progestin-containing IUD.•PR target gene FOXO1 was significantly downregulated in patients who progressed.•FOXO1 mRNA levels may reflect PR function and response to progestin-based therapy.
Details
- Title: Subtitle
- Downregulation of FOXO1 mRNA levels predicts treatment failure in patients with endometrial pathology conservatively managed with progestin-containing intrauterine devices
- Creators
- Henry D Reyes - Department of Obstetrics and Gynecology, University of Iowa, Iowa City, IA 52242, USAMatthew J Carlson - Department of Obstetrics and Gynecology, University of Iowa, Iowa City, IA 52242, USAEric J Devor - Department of Obstetrics and Gynecology, University of Iowa, Iowa City, IA 52242, USAYuping Zhang - Department of Obstetrics and Gynecology, University of Iowa, Iowa City, IA 52242, USAKristina W Thiel - Department of Obstetrics and Gynecology, University of Iowa, Iowa City, IA 52242, USAMegan I Samuelson - Department of Pathology, University of Iowa, Iowa City, IA 52242, USAMegan McDonald - Department of Obstetrics and Gynecology, University of Iowa, Iowa City, IA 52242, USAShujie Yang - Department of Obstetrics and Gynecology, University of Iowa, Iowa City, IA 52242, USAJean-Marie Stephan - Department of Obstetrics and Gynecology, University of Iowa, Iowa City, IA 52242, USAErica C Savage - Department of Pathology, University of Iowa, Iowa City, IA 52242, USADonghai Dai - Department of Obstetrics and Gynecology, University of Iowa, Iowa City, IA 52242, USAMichael J Goodheart - Department of Obstetrics and Gynecology, University of Iowa, Iowa City, IA 52242, USAKimberly K Leslie - Department of Obstetrics and Gynecology, University of Iowa, Iowa City, IA 52242, USA
- Resource Type
- Journal article
- Publication Details
- Gynecologic Oncology, Vol.140(1), pp.152-160
- DOI
- 10.1016/j.ygyno.2015.10.023
- PMID
- 26524723
- PMCID
- PMC4784706
- NLM abbreviation
- Gynecol Oncol
- ISSN
- 0090-8258
- eISSN
- 1095-6859
- Publisher
- Elsevier Inc
- Grant note
- DOI: 10.13039/100000002, name: NIH, award: R01CA99908, R01CA184101, K12-HD063117; name: American Cancer Society Institutional Research Grant; name: Department of Obstetrics and Gynecology Research Development Fund
- Language
- English
- Date published
- 01/2016
- Academic Unit
- Pathology; Obstetrics and Gynecology
- Record Identifier
- 9983931819502771
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