Abstract
Specific inbred strains and transgenic inhibin-α Simian Virus 40 T antigen (inhα/Tag) mice are genetically susceptible to gonadectomy-induced adrenocortical neoplasias. We identified altered gene expression in prepubertally gonadectomized (GDX) inhα/Tag and wild-type (WT) mice. Besides earlier reported Gata4 and Lhcgr, we found up-regulated Esr1, Prlr-rs1, and down-regulated Grb10, Mmp24, Sgcd, Rerg, Gnas, Nfatc2, Gnrhr, Igf2 in inhα/Tag adrenal tumors. Sex-steroidogenic enzyme genes expression (Srd5a1, Cyp19a1) was up-regulated in tumors, but adrenal-specific steroidogenic enzyme (Cyp21a1, Cyp11b1, Cyp11b2) down-regulated. We localized novel Lhcgr transcripts in adrenal cortex parenchyma and in non-steroidogenic A cells, in GDX WT and in intact WT mice. We identified up-regulated Esr1 as a potential novel biomarker of gonadectomy-induced adrenocortical tumors in inhα/Tag mice presenting with an inverted adrenal-to-gonadal steroidogenic gene expression profile. A putative normal adrenal remodeling or tumor suppressor role of the down-regulated genes (e.g. Grb10, Rerg, Gnas, and Nfatc2) in the tumors remains to be addressed.
| Original language | English |
|---|---|
| Journal | Molecular and Cellular Endocrinology |
| Volume | 444 |
| Pages (from-to) | 9-18 |
| Number of pages | 10 |
| ISSN | 0303-7207 |
| DOIs | |
| Publication status | Published - 15 Mar 2017 |
| Externally published | Yes |
Keywords
- Adrenal Gland Neoplasms/genetics
- Animals
- Biomarkers, Tumor/metabolism
- GATA Transcription Factors/metabolism
- Gene Expression Profiling
- Gene Expression Regulation, Neoplastic/drug effects
- Gene Ontology
- Genes, Neoplasm
- Gonadotropins/pharmacology
- Male
- Mice, Inbred C57BL
- Mice, Transgenic
- Oligonucleotide Array Sequence Analysis
- Reproducibility of Results
- Steroids/biosynthesis